KR102776332B1 - High-intensity focused ultrasound treatment device that focuses ultrasound using slit - Google Patents

Abstract

The high-intensity focused ultrasound generator according to the present invention can focus ultrasound emitted from the transducer at a preset ultrasound focusing point by diffracting, converting, and interfering ultrasound by arranging an ultrasound focusing module in which a plurality of slits are formed in front of the transducer, thereby noninvasively focusing ultrasound on a desired area, thereby enabling more precise treatment of a local area and enabling treatment without wounds or scars. In addition, various ultrasound focusing points can be implemented depending on the size or position of the slits. In addition, since an ultrasound focusing plate is detachably attached to the front of the transducer, the ultrasound focusing plate can be replaced and applied depending on the desired ultrasound focusing point. In addition, there is an advantage in that the structure of the ultrasound focusing plate is simple and installation is easy.

Description

{High-intensity focused ultrasound treatment device that focuses ultrasound using slit}

The present invention relates to a high-intensity focused ultrasound generator that focuses ultrasound using a slit, and more specifically, to a high-intensity focused ultrasound generator that focuses ultrasound through diffraction and interference of waves, which can implement one or more ultrasound focusing points by arranging an ultrasound focusing module in which a slit is formed in front of a transducer and inducing diffraction and interference of ultrasound using the slit.

In general, a high-intensity focused ultrasound (HIFU) generator is a device that focuses ultrasound generated from a transducer to generate high-intensity ultrasound energy and irradiates it onto the patient's affected area to increase the temperature of the affected area, thereby treating the affected area without surgical intervention.

Conventional high-intensity focused ultrasound generators have a problem in that they are difficult to commercialize because they mount multiple transducers on the front of a concavely formed ultrasound radiation frame and focus the ultrasound generated from the transducers to a preset location, making it very difficult and expensive to change the direction of the focused ultrasound.

Korean Patent No. 10-1952588

The purpose of the present invention is to provide a high-intensity focused ultrasound generator that facilitates focusing of ultrasound waves by utilizing diffraction and interference of waves.

A high-intensity focused ultrasound generator using a slit according to the present invention comprises: a transducer that emits ultrasound when power is applied; and an ultrasound focusing module that is arranged in front of the transducer and is formed so that ultrasound emitted from the transducer passes through it, and has at least one slit formed therein so that waves of the ultrasound are diffracted as they pass through, are converted into waves having at least one different phase, and induce interference of the converted waves to focus the waves on a preset ultrasound focusing point.

The above ultrasonic focusing module is characterized in that the surface facing the transducer is formed in a flat plate shape so as to simultaneously receive ultrasonic waves emitted from the transducer.

The above ultrasonic focusing module is characterized in that at least a portion of a surface facing the transducer is formed in a three-dimensional shape so that the separation distance from the transducer varies depending on the location.

Ultrasonic waves passing through the above ultrasonic focusing module are converted into spherical waves.

The above transducer comprises a plurality of transducers, and at least some of the plurality of transducers emit a plurality of ultrasonic waves, at least one of which has a different phase, and the ultrasonic waves passing through the ultrasonic focusing module are converted into spherical waves.

The separation distance between the transducer and the ultrasonic focusing module is set according to at least one of the diameter of the transducer and the wavelength of the ultrasonic waves.

The size of each of the above slits is set according to the wavelength of the ultrasonic waves.

The above slits are formed in a plurality of spaced apart from each other, and at least some of the plurality of slits are formed to have different sizes.

The above slits are formed in a plurality of positions spaced apart from each other, and the spacing between the plurality of slits is set according to the wavelength of the ultrasonic waves.

The above slits are formed in a plurality of spaced apart from each other, and the plurality of slits are arranged to form at least one row and at least one column.

The above slits are formed in a plurality of spaced apart from each other, and the plurality of slits are arranged radially from the center of the ultrasonic focusing module.

The above slit is formed in a cross-section having at least one shape among circular, polygonal, and round.

The above slit is formed in a cross-section having at least one of a ring shape and an arc shape.

The above slit is formed in a shape that expands or contracts as it goes outward from the center of the ultrasonic focusing module.

According to another aspect of the present invention, a high-intensity focused ultrasound generator for focusing ultrasound using a slit comprises: an ultrasound radiation frame having a plurality of coupling holes formed therein; transducer holders each inserted into the coupling holes at the front of the ultrasound radiation frame and detachably coupled by penetrating the ultrasound radiation frame; a plurality of transducers mounted on the transducer holders with their front surfaces exposed and arranged spaced apart from each other on the front of the ultrasound radiation frame, the transducers emitting ultrasound when power is applied; The present invention relates to an ultrasonic focusing module, which is arranged to be spaced apart from the transducer in the direction of propagation of the ultrasonic waves and is detachably coupled to the ultrasonic emission frame, and has a surface formed in a flat plate shape facing the transducer so as to simultaneously receive ultrasonic waves emitted from the transducer, and has a plurality of slits through which the ultrasonic waves pass, so that the ultrasonic waves are diffracted as they pass through, and are converted into waves having at least one different phase, and induce interference of the converted waves to focus the waves at a preset ultrasonic focusing point; and a coupling member that detachably couples the ultrasonic focusing module to the ultrasonic emission frame.

According to another aspect of the present invention, a high-intensity focused ultrasound generator for focusing ultrasound using a slit comprises: an ultrasound radiation frame having a plurality of coupling holes formed therein; transducer holders each inserted into the coupling holes at the front of the ultrasound radiation frame and detachably coupled by penetrating the ultrasound radiation frame; a plurality of transducers mounted on the transducer holders with their front surfaces exposed and arranged spaced apart from each other on the front of the ultrasound radiation frame, the transducers emitting ultrasound when power is applied; The present invention relates to an ultrasonic focusing module, which is arranged to be spaced apart from the transducer in the direction of propagation of the ultrasonic waves and is detachably coupled to the ultrasonic emission frame, wherein at least a portion of a surface facing the transducer is formed in a three-dimensional shape so that the distance from the transducer varies depending on the position, and which has a plurality of slits through which the ultrasonic waves pass, so that the ultrasonic waves are diffracted as they pass through, are converted into waves having at least one different phase, and induce interference of the converted waves to focus the waves at a preset ultrasonic focusing point; and a coupling member that detachably couples the ultrasonic focusing module to the ultrasonic emission frame.

The high-intensity focused ultrasound generator according to the present invention can focus ultrasound emitted from a transducer on a preset ultrasound focusing point by diffracting, converting, and interfering ultrasound by arranging an ultrasound focusing module with a slit formed in front of a transducer, thereby noninvasively focusing ultrasound on a desired area, allowing more accurate treatment of a local area, and has the advantage of allowing treatment without wounds or scars.

Additionally, various ultrasound focusing points can be implemented depending on the size and position of the slits.

In addition, since an ultrasonic focusing plate is detachably attached to the front of the transducer, the ultrasonic focusing plate can be replaced and applied depending on the desired ultrasonic focusing point.

In addition, the ultrasonic focusing plate has the advantage of having a simple structure and being easy to install.

FIG. 1 is a drawing schematically illustrating the configuration of a high-intensity focused ultrasound generator that focuses ultrasound using diffraction and interference of waves according to a first embodiment of the present invention.
Figure 2 is an exploded perspective view of the ultrasonic focusing plate and transducer illustrated in Figure 1.
Figure 3 is a side view of the ultrasonic focusing plate illustrated in Figure 2.
FIG. 4 is a drawing schematically showing the ultrasonic focusing principle of the ultrasonic focusing plate according to the first embodiment of the present invention.
FIG. 5 is a diagram schematically showing the relationship between the distance between slits and the ultrasound focusing point according to an embodiment of the present invention.
FIG. 6 shows an example of the size and position of slits when the focal length is 20 mm in a high-intensity focused ultrasound generator according to an embodiment of the present invention.
Figure 7 shows an example of simulating the focusing of ultrasonic waves when the focal length is 20 mm in a high-intensity focused ultrasonic wave generating device according to an embodiment of the present invention.
Figure 8 is a drawing schematically showing the ultrasonic focusing principle of the ultrasonic focusing plate according to the second embodiment of the present invention.
Figure 9 is a plan view of an ultrasonic focusing plate according to a third embodiment of the present invention.
Figure 10 is a plan view of an ultrasonic focusing plate according to a fourth embodiment of the present invention.
Fig. 11 is a plan view of an ultrasonic focusing plate according to a fifth embodiment of the present invention.
Figure 12 is a plan view of an ultrasonic focusing plate according to the sixth embodiment of the present invention.
Figure 13 is a plan view of an ultrasonic focusing plate according to the seventh embodiment of the present invention.
Figure 14 is a plan view of an ultrasonic focusing plate according to the eighth embodiment of the present invention.
Figure 15 is a plan view of an ultrasonic focusing plate according to the ninth embodiment of the present invention.
Figure 16 is a plan view of an ultrasonic focusing plate according to the tenth embodiment of the present invention.
Figure 17 is a plan view of an ultrasonic focusing plate according to the 11th embodiment of the present invention.
Fig. 18 is a plan view of an ultrasonic focusing plate according to the 12th embodiment of the present invention.
Fig. 19 is a plan view of an ultrasonic focusing plate according to the 13th embodiment of the present invention.
Figure 20 is a plan view of an ultrasonic focusing plate according to the 14th embodiment of the present invention.
Figure 21 is a plan view of an ultrasonic focusing plate according to the 15th embodiment of the present invention.
FIG. 22 is a drawing schematically illustrating a high-intensity focused ultrasound generating device according to the 16th embodiment of the present invention.
FIG. 23 is a drawing schematically illustrating a high-intensity focused ultrasound generating device according to the 17th embodiment of the present invention.
FIG. 24 is a drawing schematically illustrating a high-intensity focused ultrasound generating device according to the 18th embodiment of the present invention.
FIG. 25 is a drawing schematically illustrating a high-intensity focused ultrasound generating device according to the 19th embodiment of the present invention.
FIG. 26 is a drawing schematically illustrating a high-intensity focused ultrasound generating device according to the 20th embodiment of the present invention.

Hereinafter, embodiments of the present invention will be described with reference to the attached drawings.

FIG. 1 is a schematic diagram illustrating the configuration of a high-intensity focused ultrasonic generator that focuses ultrasonic waves using wave diffraction and interference according to a first embodiment of the present invention. FIG. 2 is an exploded perspective view of the ultrasonic focusing plate and transducer illustrated in FIG. 1. FIG. 3 is a side view of the ultrasonic focusing plate illustrated in FIG. 2.

Referring to FIGS. 1 to 3, a high-intensity focused ultrasound generating device according to a first embodiment of the present invention includes an ultrasonic radiation frame (10), a plurality of transducer holders (20), a plurality of transducers (30), and an ultrasonic focusing module.

The above ultrasonic radiation frame (10) is a frame in which a plurality of joining holes are formed so that the transducer holder (20) can be joined. The front surface of the ultrasonic radiation frame (10) is described as being formed as a flat plane, for example. However, the present invention is not limited thereto, and the front surface of the ultrasonic radiation frame (10) may be formed as a curved surface.

The above transducer holders (20) are removably coupled to each of the plurality of coupling holes. The transducer (30) is mounted on the front of the transducer holder (20).

The transducer holder (20) includes a head portion (20a) having a mounting groove formed into which the transducer (30) is inserted and mounted, and a body portion (20b) that is extended to the rear of the head portion (20a) and coupled to the coupling holes.

The above transducer (30), the transducer holder (20) and the ultrasonic focusing module form one module, and a plurality of the modules are configured to form an array.

In this embodiment, the transducer (30) and the ultrasonic focusing module are matched one-to-one (1:1) to form one module, and a plurality of the modules are arranged in a plane, for example. However, the present invention is not limited thereto, and it is also possible to provide a single ultrasonic focusing module to be matched to a plurality of transducers (30), and it is also possible to provide a single transducer (30) to be matched to a plurality of ultrasonic focusing modules.

In this embodiment, the transducer (30) is coupled to the ultrasonic radiation frame (10) through the transducer holder (20) as an example, but the present invention is not limited thereto and the transducer (30) may also be directly coupled to the ultrasonic radiation frame (10). In this case, the transducer (30) and the ultrasonic focusing module may form one module.

The above transducers (30) may include piezoelectric elements. In this embodiment, the transducers (30) are formed in a disk shape as an example. The number, size, and shape of the transducers can be variously changed depending on the ultrasonic energy to be radiated. Wires (31) may be connected to the upper and lower surfaces of the transducers (30).

The above transducer (30) generates ultrasonic waves when power is applied, and the ultrasonic waves are described as a single plane wave for example. However, the present invention is not limited thereto, and the ultrasonic waves may of course be waves of other shapes than plane waves. In addition, the plurality of transducers (30) may of course emit ultrasonic waves having at least one different phase.

The transducers (30) are arranged laterally spaced apart from each other on the plane of the ultrasonic radiation frame (10). The transducers (30) are arranged spaced apart from each other at equal intervals, for example. However, the present invention is not limited thereto, and it is also possible for at least some of the transducers (30) to be arranged spaced apart from each other at different intervals. In addition, the transducers (30) may be arranged regularly to form a matrix, or may be arranged radially or in an interleaved manner. In addition, the transducers (30) may be arranged in groups of a plurality, and the multiple groups may be arranged spaced apart from each other.

The above ultrasonic focusing module is arranged in front of each of the transducers (30), and causes ultrasonic waves emitted from the transducers (30) to diffract as they pass through, converts them into waves having at least one different phase, and induces interference of the converted waves to focus the waves at a preset ultrasonic focusing point.

In this embodiment, the ultrasonic focusing module is described as an ultrasonic focusing plate (40) that is positioned spaced apart from the transducer (30) in the front, but at least a portion of which is formed into a three-dimensional shape including a curved surface, an inclined surface, and a stepped surface so that the distance from the transducer (30) varies depending on the position.

Here, the separation distance between the transducer (30) and the ultrasonic focusing plate (40) is set according to at least one of the wavelength (λ) of the ultrasonic waves and the diameter of the transducer (30). In this embodiment, the separation distance between the transducer (30) and the ultrasonic focusing plate (40) is set to a range of about 0.01 mm to 10 times the diameter of the transducer (30), as an example.

Referring to FIGS. 2 and 3, the ultrasonic focusing plate (40) is described as having a disc shape with a diameter larger than that of the transducer (20).

The above ultrasonic focusing plate (40) includes a waveform conversion part (40a) facing the transducer (20), and a frame coupling part (40b) that extends radially from the waveform conversion part (40a) and is coupled to the ultrasonic radiation frame (10) by a coupling member (45)(46) described later.

The above waveform conversion unit (40a) is formed to protrude forward in the direction in which the ultrasonic waves propagate.

In this embodiment, the waveform conversion unit (40a) is described as having a convex shape as an example. However, the present invention is not limited thereto, and the waveform conversion unit (40a) may be formed in a quadrangular pyramid shape that protrudes in the direction of propagation of the ultrasonic waves but has an open bottom, or may be formed so that at least a portion thereof is stepped, or may be formed so that at least a portion thereof has an inclined surface. In addition, the waveform conversion unit (40a) may also have a shape in which at least a portion of the convex shape, the concave shape, the quadrangular pyramid shape, the plane shape, the inclined surface shape, and the stepped shape are combined. That is, the waveform conversion unit (40a) may be applied by changing to various shapes as long as the distances between the slits (42) described below and the transducer (30) are each different.

In this embodiment, it is explained as an example that the waveform conversion part (40a) among the ultrasonic focusing plate (40) has a protruding shape, but it is not limited to this, and it is also possible that the entire ultrasonic focusing plate (40) has a shape that protrudes forward, or that a part or multiple areas of the waveform conversion part (40a) have a shape that protrudes forward.

In the waveform conversion unit (40a), a plurality of slits (42) are formed to convert the ultrasonic waves emitted from the transducer (30) into waves having at least one different phase. The waveform conversion unit (40a) converts the ultrasonic waves emitted from the transducer (30) into spherical waves, and focuses them on at least one ultrasonic focusing point by inducing interference of the plurality of spherical waves.

A plurality of fastening holes (41) are formed in the above frame joint (40b) to fasten the above-mentioned fastening members (45)(46).

Referring to FIGS. 2 and 3, the connecting member (45)(46) includes a plurality of connecting nuts (46) and a plurality of connecting bolts (45).

The above connecting nuts (46) are nuts that are provided on the ultrasonic radiation frame (10) and are formed so as to protrude forward more than the front surface of the transducer (30) and are formed to guide the mounting height of the ultrasonic focusing plate (40). The connecting nuts (46) are described as being fastened and fixed to a module coupling hole formed on the ultrasonic radiation frame (10) by way of example. However, the present invention is not limited thereto, and the connecting nuts (46) may be placed on the front surface of the ultrasonic radiation frame (10) and then fixed using an adhesive or the like, and of course, may also be formed integrally with the ultrasonic radiation frame.

The above-described plurality of connecting nuts (46) are arranged at a predetermined interval from each other, and the ultrasonic focusing plate (40) is placed on the upper surface of the connecting nuts (36). The height at which the connecting nuts (46) protrude forward from the front surface of the ultrasonic radiation frame (10) is set according to the mounting height of the ultrasonic focusing plate (40) or the distance between the ultrasonic focusing plate (40) and the transducer (30).

The above connecting bolts (45) are fastened to the connecting nuts (46) on the upper side of the ultrasonic focusing plate (40) placed on the connecting nuts (36). The connecting bolts (45) pass through the fastening holes (41) of the ultrasonic focusing plate (40) and are fastened to the connecting nuts (46).

Meanwhile, the plurality of slits (42) include all holes or gaps formed in the ultrasonic focusing plate (40) and through which the ultrasonic waves pass.

In this embodiment, the plurality of slits (42) are arranged to form at least one row and at least one column, for example. That is, the slits (42) are arranged at equal intervals in the horizontal direction and are regularly arranged in a matrix form, for example. However, the present invention is not limited thereto, and the plurality of slits (42) may be arranged in various forms.

The above slits (42) are explained as holes with a circular cross-section, but are not limited thereto, and the cross-sectional shape of the slits (42) can be applied by changing them in various ways.

In addition, the sizes of the above slits (42) are explained as being the same, but are not limited to this and of course, they can be formed in different sizes.

The diffraction of the above ultrasonic waves is affected by the size of the slits (42) and the wavelength (λ) of the ultrasonic waves.

Accordingly, the size of each of the slits (42) is set differently depending on the wavelength (λ) of the ultrasonic waves emitted from the transducer (30). Here, the size of the slit (42) includes the diameter of the cross-section of the slit (42). In this embodiment, the diameter of the slit (42) is set in a range of 0.01 to 10 times the wavelength (λ) of the ultrasonic waves, as an example.

The spacing between the slits (42) is set according to the wavelength (λ) of the ultrasonic waves. In this embodiment, the spacing between the slits (42) is set in a range of 0.01 to 10 times the wavelength (λ) of the ultrasonic waves, as an example.

Meanwhile, Fig. 5 is a drawing schematically showing the relationship between the distance between slits and the ultrasonic focusing point when the ultrasonic focusing plate according to an embodiment of the present invention is a flat plate. Fig. 6 shows an example of the size and position of slits when the focal length is 20 mm in a high-intensity focused ultrasonic generator according to an embodiment of the present invention.

Referring to Fig. 5, an example will be described in which two slits (42) are formed in the ultrasonic focusing plate (40). In Fig. 5, Δy represents the path difference of the wave.

The separation distance (d) between the slits (42) is set according to the wavelength (λ) of the ultrasonic waves, the arrangement order of the slits (s _n ) from the central slit (s0) among the plurality of slits (42), and the distance (y0) from the central slit (s0) to the ultrasonic focal point.

When there are multiple slits (42), the equation for calculating the distance (d _n ) between the nth slit from the center slit (s0) is as shown in mathematical equation 1.

[Mathematical Formula 1]

Here, n is the arrangement order of the slits from the central slit, λ is the wavelength of the ultrasound, and y0 is the distance from the central slit to the screen. The screen is a position where a focus point can be created.

When the separation distance (d _n ) between the slits (42) is calculated in the above mathematical expression 1, the positions of the slits (42) can be set according to the separation distance (d _n ).

Referring to Figure 6, an example of arranging slits according to the separation distance (d _n ) calculated using mathematical expression 1 is shown when the focal length is 20 mm.

In FIG. 6, d1 represents a distance between the center slit (s0) and the first slit (s1), d2 represents a distance between the center slit (s0) and the second slit (s2), d3 represents a distance between the center slit (s0) and the third slit (s3), d4 represents a distance between the center slit (s0) and the fourth slit (s4), and d5 represents a distance between the center slit (s0) and the fifth slit (s5).

Referring to Fig. 6, it can be seen that the spacing between the slits (42) decreases as one moves away from the central slit (s0).

Figure 7 shows an example of simulating the focusing of ultrasonic waves when the focal length is 20 mm in a high-intensity focused ultrasonic wave generating device according to an embodiment of the present invention.

Referring to Fig. 7, when the focal length is 20 mm, the positions of the slits (42) were set and arranged according to the separation distance calculated according to the mathematical expression 1 above, and the ultrasonic focusing point was confirmed through simulation.

In addition, at least a portion of the surface of the transducer (30) may be coated with a sound-absorbing material (not shown) to provide an absorbing layer (not shown) that absorbs ultrasonic waves reflected from the ultrasonic focusing plate (40).

The operation of a high-intensity focused ultrasonic generator that focuses ultrasonic waves by utilizing wave diffraction and interference according to the first embodiment of the present invention configured as described above is described as follows.

When power is applied to the above plurality of transducers (30), each transducer (30) generates and emits ultrasonic waves.

Here, the ultrasonic waves generated from each of the transducers (30) are explained as one plane wave as an example.

The ultrasonic waves emitted from the above transducer (30) pass through the ultrasonic focusing plate (40) placed in front of the above transducer (30).

As the ultrasonic waves pass through the ultrasonic focusing plate (40), they are diffracted and converted into a plurality of spherical waves, at least one of which has a different phase, and the waves of the converted spherical waves interfere and are focused at a preset ultrasonic focusing point.

That is, referring to Fig. 4a, the ultrasonic waves emitted from the transducer (30) are converted into a plurality of spherical waves while passing through the plurality of slits (42).

Referring to Fig. 4b, the plurality of spherical waves are focused on a preset ultrasonic focusing point.

Accordingly, by placing the ultrasound focusing plate (40) in front of the transducer (30), ultrasound can be non-invasively focused on a desired area, allowing for more accurate treatment of a local area and the advantage of being able to perform the procedure without wounds or scars.

In addition, the ultrasonic focusing point can be changed depending on the size or position of the slits (42) formed in the ultrasonic focusing plate (40) and the distance between the ultrasonic focused wave (40) and the transducer (30).

In addition, since the ultrasonic focusing plate (40) is detachably attached to the front of the transducer (30), the ultrasonic focusing plate (40) can be replaced according to the desired ultrasonic focusing point, allowing application to various ultrasonic focusing areas.

In addition, compared to the case where focusing is performed using the shape of the ultrasonic radiation frame (10), there is an advantage in that the structure is simple and partially replaceable.

Meanwhile, FIG. 8 is a drawing schematically showing the ultrasonic focusing principle of the ultrasonic focusing plate according to the second embodiment of the present invention.

Referring to FIG. 8, the ultrasonic focusing plate (240) according to the second embodiment of the present invention is formed in a three-dimensional shape, but is different from the first embodiment in that it has a convex curved shape toward the rearward direction of the transducer (30), and the remaining configuration and operation are similar to the first embodiment, so the description will focus on the differences and a detailed description of similar contents will be omitted.

The above ultrasonic focusing plate (240) includes a waveform conversion part (240a) facing the transducer (20) and a frame coupling part (240b) that extends radially from the waveform conversion part (240a) and is coupled to the ultrasonic radiation frame (10).

The above waveform conversion unit (240a) is explained as an example of being formed in a concave shape so as to protrude toward the transducer (30).

In this embodiment, the waveform conversion unit (240a) is described as having a curved shape as an example, but is not limited thereto. It may also be formed in a shape of a square pyramid that protrudes in a direction toward the transducer (30) but has an open bottom, or at least a portion thereof is formed with a step, or at least a portion thereof has an inclined surface. That is, the waveform conversion unit (240a) can be applied by changing to various shapes as long as the distances between the slits (242) described below and the transducer (30) are formed to be different.

In this embodiment, it is explained as an example that the waveform conversion part (240a) among the ultrasonic focusing plate (240) has a shape that protrudes rearward, but it is not limited to this, and it is also possible for the entire ultrasonic focusing plate (240) to have a shape that protrudes rearward, or for only an area smaller than the waveform conversion part (240a) to have a shape that protrudes rearward.

A plurality of slits (242) are formed in the waveform conversion part (240a) of the above ultrasonic focusing plate (240).

The above slits (242) are explained as holes with a circular cross-section, but are not limited thereto, and the cross-sectional shape of the slits (242) can be applied by changing them in various ways.

In addition, the number of the above slits (242) can be changed and applied in various ways.

In addition, the sizes of the above slits (242) are explained as being the same, but are not limited thereto and of course, they can be formed in different sizes.

Additionally, it is possible for the spacing between the slits (242) to be set to be the same for all of them, and it is also possible for the spacing between at least some of the slits (242) to be set to be different from each other.

The size and position of the slits (242) can be set differently depending on the desired focal point of the ultrasound. That is, the size of the slits (242) is set differently depending on the wavelength (λ) of the ultrasound emitted from the transducer (30). The position of each slit (242) can be calculated and set based on the wavelength (λ) of the ultrasound, the arrangement order of the corresponding slits (s _n ) from the central slit (s1) among the plurality of slits (242), and the distance from the central slit (s1) to the focal point of the ultrasound.

Referring to Fig. 8a, ultrasonic waves emitted from the transducer (30) are converted into a plurality of spherical waves while passing through the plurality of slits (242).

Referring to Fig. 8b, the plurality of spherical waves are focused on a preset ultrasonic focusing point.

In this embodiment, the ultrasonic wave emitted from the transducer (30) is described as a single plane wave, but is not limited thereto and may have other shapes.

Meanwhile, FIG. 9 is a plan view of an ultrasonic focusing plate according to a third embodiment of the present invention.

Referring to FIG. 9, an ultrasonic focusing plate (340) according to a third embodiment of the present invention has a plurality of slits (342) formed therein, and the plurality of slits (342) are arranged to form a plurality of rows and columns, but the slits arranged in adjacent rows or adjacent columns are arranged in an alternating manner, which is different from the first embodiment, and the remaining configuration and operation are similar to the first embodiment, and therefore, a detailed description of similar contents is omitted.

The above slits (342) are explained as holes with a circular cross-section, but are not limited thereto, and the cross-sectional shape of the slits (342) can be applied by changing them in various ways.

In addition, the number of the above slits (342) can be changed and applied in various ways.

In addition, the sizes of the above slits (342) are explained as being the same, but are not limited thereto and of course, they can be formed in different sizes.

Additionally, it is possible for the spacing between the slits (342) to be set to be the same for all of them, and it is also possible for the spacing between at least some of the slits (342) to be set to be different from each other.

The size and position of the slits (342) can be set differently depending on the desired focal point of the ultrasound. That is, the size of the slits (342) is set differently depending on the wavelength (λ) of the ultrasound emitted from the transducer (30). The position of each slit (342) can be calculated and set based on the wavelength (λ) of the ultrasound, the arrangement order of the corresponding slits (s _n ) from the central slit (s1) among the plurality of slits (342), and the distance from the central slit (s1) to the focal point of the ultrasound.

In addition, the ultrasonic focusing plate (340) may have a flat plate shape with at least a portion of the surface facing the transducer (30), and may also be formed in a three-dimensional shape so that the distance from the transducer (30) varies depending on the location.

When the above ultrasonic focusing plate (340) is formed in a three-dimensional shape, at least a part may be formed as a curved or inclined surface, or at least a part may be formed in a stepped shape. In addition, the ultrasonic focusing plate (340) may be formed in a convex shape in the direction in which the ultrasonic waves travel, or in a convex shape in the direction toward the transducer (30). However, the present invention is not limited thereto, and if the distance between the slits (342) of the ultrasonic focusing plate (340) and the transducer (30) is formed to be different depending on the location, it may be applied by changing to various shapes.

In addition, in this embodiment, the ultrasonic wave emitted from the transducer (30) is described as a single plane wave, but is not limited thereto and may have other shapes.

Meanwhile, FIG. 10 is a plan view of an ultrasonic focusing plate according to the fourth embodiment of the present invention.

Referring to FIG. 10, a plurality of slits (442) are formed in an ultrasonic focusing plate (440) according to a fourth embodiment of the present invention, and the plurality of slits (442) are arranged radially from the center of the ultrasonic focusing plate (440), which is different from the first embodiment, and the remaining configuration and operation are similar to the first embodiment, so a detailed description of similar contents is omitted.

The above slits (442) are arranged to form an imaginary circle with the slits arranged within the same radius from the center of the ultrasonic focusing plate (440), as an example.

The above slits (442) are explained as holes with a circular cross-section, but are not limited thereto, and the cross-sectional shape of the slits (442) can be applied by changing them in various ways.

In addition, the number of the above slits (442) can be changed and applied in various ways.

In addition, the sizes of the above slits (442) are explained as being the same, but are not limited thereto and of course, they can be formed in different sizes.

Additionally, it is possible for the spacing between the slits (442) to be set to be the same for all of them, and it is also possible for the spacing between at least some of the slits (442) to be set to be different from each other.

The size and position of the slits (442) can be set differently depending on the desired focal point of the ultrasound. That is, the size of the slits (442) is set differently depending on the wavelength (λ) of the ultrasound emitted from the transducer (30). The position of each slit (442) can be calculated and set based on the wavelength (λ) of the ultrasound, the arrangement order of the corresponding slits (s _n ) from the central slit (s1) among the plurality of slits (442), and the distance from the central slit (s1) to the focal point of the ultrasound.

In addition, the ultrasonic focusing plate (440) may have a flat plate shape with at least a portion of the surface facing the transducer (30), and may also be formed in a three-dimensional shape so that the distance from the transducer (30) varies depending on the location.

When the above ultrasonic focusing plate (440) is formed in a three-dimensional shape, at least a part may be formed as a curved or inclined surface, or at least a part may be formed in a stepped shape. In addition, the ultrasonic focusing plate (440) may be formed in a convex shape in the direction of propagation of the ultrasonic waves, or in a convex shape in the direction toward the transducer (30). However, the present invention is not limited thereto, and if the distance between the slits (442) of the ultrasonic focusing plate (440) and the transducer (30) is formed to be different depending on the location, it may be applied by changing to various shapes.

In addition, in this embodiment, the ultrasonic wave emitted from the transducer (30) is described as a single plane wave, but is not limited thereto and may have other shapes.

Meanwhile, FIG. 11 is a plan view of an ultrasonic focusing plate according to the fifth embodiment of the present invention.

Referring to FIG. 11, the slits (542) of the ultrasonic focusing plate (540) according to the fifth embodiment of the present invention are different from the first embodiment in that they include a central hole (542a) and a plurality of surrounding holes (542b) arranged spaced apart from each other in the circumferential and radial directions, and the remaining configuration and operation are similar to the first embodiment, so the description will focus on the differences and a detailed description of similar contents will be omitted.

The above central hole (542a) is explained as an example of a hole with a circular cross-section, but is not limited thereto and the cross-sectional shape can be changed and applied in various ways.

The above-mentioned around holes (542b) are arranged in a plurality of pieces spaced apart from each other in the circumferential and radial directions, and are described as holes having a cross-section in the shape of an arc. However, this is not limited to this, and the cross-sectional shape of the above-mentioned around holes (542b) can be applied by changing them in various ways.

Among the above-described surrounding holes (542), holes located within the same radius from the center hole (542a) are arranged to form a virtual circle. In addition, the surrounding holes (542) are formed such that the arc length (l _n ) becomes longer as they go in the radial direction. In addition, the surrounding holes (542) are arranged to form spherical symmetry with the center hole (542a) as the center.

In addition, the number of the above-mentioned surrounding holes (542b) can be changed and applied in various ways.

In addition, the radial widths (w) of the above-mentioned surrounding holes (542b) are explained as being the same, but are not limited thereto and of course can be formed differently.

The size and position of the above central hole (542a) and the above surrounding holes (542b) are set differently depending on the desired ultrasonic focal point.

In addition, the ultrasonic focusing plate (540) may have a flat plate shape with at least a portion of the surface facing the transducer (30), and may also be formed in a three-dimensional shape so that the distance from the transducer (30) varies depending on the location.

When the above ultrasonic focusing plate (540) is formed in a three-dimensional shape, at least a part may be formed as a curved or inclined surface, or at least a part may be formed in a stepped shape. In addition, the ultrasonic focusing plate (540) may be formed in a convex shape in the direction of propagation of the ultrasonic waves, or in a convex shape in the direction toward the transducer (30). However, the present invention is not limited thereto, and if the distance between the slits (542) of the ultrasonic focusing plate (540) and the transducer (30) is formed to be different depending on the location, it may be applied by changing to various shapes.

In addition, in this embodiment, the ultrasonic wave emitted from the transducer (30) is described as a single plane wave, but is not limited thereto and may have other shapes.

Meanwhile, FIG. 12 is a plan view of an ultrasonic focusing plate according to the sixth embodiment of the present invention.

Referring to FIG. 12, the slits (642) of the ultrasonic focusing plate (640) according to the sixth embodiment of the present invention include a central hole (642a) and a plurality of surrounding holes (642b) spaced apart from each other in the circumferential and radial directions. However, the surrounding holes (642) are arranged in an interleaved manner, which is different from the fifth embodiment, and the remaining configuration and operation are similar to the fifth embodiment. Therefore, the description will be centered on the differences, and a detailed description of similar contents will be omitted.

The above central hole (642a) is described as an example of a hole with a circular cross-section, but is not limited thereto and the cross-sectional shape can be changed and applied in various ways.

The above-mentioned around holes (642b) are arranged in a plurality of pieces spaced apart from each other in the circumferential and radial directions, and are described as holes having a cross-section in the shape of an arc. However, this is not limited to this, and the cross-sectional shape of the above-mentioned around holes (642b) can be applied by changing them in various ways.

Among the above-described surrounding holes (642), holes located within the same radius from the center hole (642a) are arranged to form a virtual circle. In addition, the surrounding holes (642) are formed such that the arc length (l _n ) becomes longer as they go in the radial direction.

In addition, the surrounding holes (642) are arranged staggered from each other so as not to form a spherical symmetry around the center hole (542a).

In addition, the number of the above-mentioned surrounding holes (642b) can be changed and applied in various ways.

In addition, the radial widths (w) of the above-mentioned surrounding holes (642b) are explained as being the same, but are not limited thereto and of course can be formed differently.

The size and position of the above center hole (642a) and the above surrounding holes (642b) are set differently depending on the desired ultrasonic focal point.

In addition, the ultrasonic focusing plate (640) may have a flat plate shape with at least a portion of the surface facing the transducer (30), and may also be formed in a three-dimensional shape so that the distance from the transducer (30) varies depending on the location.

When the above ultrasonic focusing plate (640) is formed in a three-dimensional shape, at least a part may be formed as a curved or inclined surface, or at least a part may be formed in a stepped shape. In addition, the ultrasonic focusing plate (640) may be formed in a convex shape in the direction in which the ultrasonic waves travel, or in a convex shape in the direction toward the transducer (30). However, the present invention is not limited thereto, and if the distance between the slits (3642) of the ultrasonic focusing plate (640) and the transducer (30) is formed to be different depending on the location, it may be applied by changing to various shapes.

In addition, in this embodiment, the ultrasonic wave emitted from the transducer (30) is described as a single plane wave, but is not limited thereto and may have other shapes.

Meanwhile, FIG. 13 is a plan view of an ultrasonic focusing plate according to the seventh embodiment of the present invention.

Referring to FIG. 13, the slits (742) of the ultrasonic focusing plate (740) according to the seventh embodiment of the present invention include a central hole (742a) and a plurality of surrounding holes (742b) arranged radially spaced apart from the central hole (742a), but the surrounding holes (742) are formed in a ring-shaped cross-section, which is different from the fifth embodiment, and the remaining configuration and operation are similar to the fifth embodiment, so the description will focus on the differences and a detailed description of similar contents will be omitted.

The above central hole (742a) is described as an example of a hole with a circular cross-section, but is not limited thereto and the cross-sectional shape can be changed and applied in various ways.

The above-mentioned surrounding holes (742b) are arranged in a radial direction centered on the central hole (742a) and are described as holes having a ring-shaped cross-section, as an example. However, this is not limited to this, and the cross-sectional shape of the above-mentioned surrounding holes (742b) can be applied by changing them in various ways.

In addition, the number of the above-mentioned surrounding holes (742b) can be changed and applied in various ways.

In addition, the radial widths (w) of the above-mentioned surrounding holes (742b) are explained as being the same, but are not limited thereto and of course, they can be formed differently.

The size and position of the above center hole (742a) and the above surrounding holes (742b) are set differently depending on the desired ultrasonic focal point.

In addition, it is explained as an example that the remaining parts of the ultrasonic focusing plate (740) except for the center hole (742a) and the surrounding holes (742) are connected to each other by a connecting part (742c).

In addition, the ultrasonic focusing plate (740) may have a flat plate shape with at least a portion of the surface facing the transducer (30), and may also be formed in a three-dimensional shape so that the distance from the transducer (30) varies depending on the location.

When the above ultrasonic focusing plate (740) is formed in a three-dimensional shape, at least a part may be formed as a curved or inclined surface, or at least a part may be formed in a step shape. In addition, the ultrasonic focusing plate (740) may be formed in a convex shape in the direction of propagation of the ultrasonic waves, or in a convex shape in the direction toward the transducer (30). However, the present invention is not limited thereto, and if the distance between the slits (742) of the ultrasonic focusing plate (740) and the transducer (30) is formed to be different depending on the location, it may be applied by changing to various shapes.

In addition, in this embodiment, the ultrasonic wave emitted from the transducer (30) is described as a single plane wave, but is not limited thereto and may have other shapes.

Meanwhile, FIG. 14 is a plan view of an ultrasonic focusing plate according to the eighth embodiment of the present invention.

Referring to FIG. 14, a plurality of slits (842) formed in an ultrasonic focusing plate (840) according to an eighth embodiment of the present invention are arranged radially from the center of the ultrasonic focusing plate (840), but at least some of the slits (842) are formed to decrease in size from the center of the ultrasonic focusing plate (840) in the radial direction, which is different from the fourth embodiment, and the remaining configuration and operation are similar to the fourth embodiment, so a detailed description of similar contents is omitted.

The above slits (842) are arranged to form an imaginary circle with the slits arranged within the same radius from the center of the ultrasonic focusing plate (840), as an example.

The above slits (842) are explained as holes having a circular cross-section, but are not limited thereto, and the cross-sectional shape of the slits (842) can be applied by changing them in various ways.

In addition, the number of the above slits (842) can be changed and applied in various ways.

In addition, among the slits (842), at least some of the central slits (842a) arranged on the central side are formed to have the same size, and the remaining peripheral slits (842b) are formed to decrease in size as they go from the center of the ultrasonic focusing plate (840) in the radial direction. In addition, the spacing between the central slits (842a) and the spacing between the peripheral slits (842b) are set differently, for example. However, the present invention is not limited thereto, and it is of course possible for the spacing between the slits (842) to be set to be the same.

Meanwhile, FIG. 15 is a plan view of an ultrasonic focusing plate according to the ninth embodiment of the present invention.

Referring to FIG. 15, a plurality of slits (942) formed in an ultrasonic focusing plate (940) according to a ninth embodiment of the present invention are arranged radially from the center of the ultrasonic focusing plate (940), but at least some of the slits (942) are formed to increase in size in the radial direction from the center of the ultrasonic focusing plate (940), which is different from the eighth embodiment, and the remaining configuration and operation are similar to the eighth embodiment, so a detailed description of similar contents is omitted.

The above slits (942) are arranged to form an imaginary circle with the slits arranged within the same radius from the center of the ultrasonic focusing plate (940), as an example.

The above slits (942) are explained as holes with a circular cross-section, but are not limited thereto, and the cross-sectional shape of the slits (942) can be applied by changing them in various ways.

In addition, the number of the above slits (942) can be changed and applied in various ways.

In addition, among the slits (942), at least some of the central slits (942a) arranged on the central side are formed to have the same size, and the remaining peripheral slits (942b) are formed to decrease in size as they go from the center of the ultrasonic focusing plate (940) in the radial direction. In addition, the spacing between the central slits (942a) and the spacing between the peripheral slits (942b) are set differently, for example. However, the present invention is not limited thereto, and it is of course possible for the spacing between the slits (942) to be set to be the same.

Meanwhile, FIG. 16 is a plan view of an ultrasonic focusing plate according to the 10th embodiment of the present invention.

Referring to FIG. 16, a plurality of slits (1042) formed on an ultrasonic focusing plate (1040) according to a tenth embodiment of the present invention are arranged in a matrix form to form a plurality of rows and columns, and at least some of the slits (1042) are formed to have a larger size from the center of the ultrasonic focusing plate (1040) toward the outside, which is different from the first embodiment, and the remaining configuration and operation are similar to the first embodiment, so a detailed description of similar contents is omitted.

The above slits (1042) are explained as holes with a circular cross-section, but are not limited thereto, and the cross-sectional shape of the slits (1042) can be applied by changing them in various ways.

In addition, the number of the above slits (1042) can be changed and applied in various ways.

In addition, the size of the slits (1042) is explained as being gradually larger as they move outward from the center of the ultrasonic focusing plate (1040).

Additionally, it is possible for the spacing between the slits (1042) to be set to be the same for all of them, and it is also possible for the spacing between at least some of the slits (1042) to be set to be different from each other.

In addition, the slits (1042) are explained as being arranged in a row with adjacent slits, but are not limited thereto, and it is of course also possible for the slits arranged in adjacent rows or adjacent columns to be arranged staggered from each other.

Meanwhile, FIG. 17 is a plan view of an ultrasonic focusing plate according to the 11th embodiment of the present invention.

Referring to FIG. 17, a plurality of slits (1142) formed on an ultrasonic focusing plate (1140) according to an eleventh embodiment of the present invention are arranged in a matrix form to form a plurality of rows and columns, and at least some of the slits (1142) are formed to become smaller in size as they go outward from the center of the ultrasonic focusing plate (1140), which is different from the tenth embodiment, and the remaining configuration and operation are similar to the tenth embodiment, and therefore, a detailed description of similar contents will be omitted.

The above slits (1142) are explained as holes with a circular cross-section, but are not limited thereto, and the cross-sectional shape of the slits (1142) can be applied by changing them in various ways.

In addition, the number of the above slits (1142) can be changed and applied in various ways.

In addition, the size of the slits (1142) is explained as being gradually larger as they move outward from the center of the ultrasonic focusing plate (1140).

Additionally, it is possible for the spacing between the slits (1142) to be set to be the same for all of them, and it is also possible for the spacing between at least some of the slits (1142) to be set to be different from each other.

In addition, the slits (1142) are explained as being arranged in a row with adjacent slits, but are not limited thereto, and it is of course also possible for the slits arranged in adjacent rows or adjacent columns to be arranged staggered from each other.

Meanwhile, FIG. 18 is a plan view of an ultrasonic focusing plate according to the 12th embodiment of the present invention.

Referring to FIG. 18, the plurality of slits (1242) formed on the ultrasonic focusing plate (1240) according to the 12th embodiment of the present invention are formed in a rectangular shape that is elongated in the horizontal direction, which is different from the first embodiment, and the remaining configuration and operation are similar to the first embodiment, so a detailed description of similar contents is omitted.

The above slits (1242) are formed long in a first direction (x) that is horizontal on the surface of the ultrasonic focusing plate (1240), and a plurality of slits are formed spaced apart from each other in a second direction (y) that is perpendicular to the first direction (x) on the surface of the ultrasonic focusing plate (1240).

The shape of the above slits (1242) is explained as a rectangular shape as an example, but is not limited thereto and can be changed to various shapes such as squares and ovals.

In addition, the number of the above slits (1242) can be changed and applied in various ways.

In addition, the sizes of the slits (1242) are all set to the same for example, but this is not limited to this, and it is of course possible for at least some of the slits (1242) to be formed with different sizes.

Additionally, it is possible for the spacing between the slits (1242) to be set to be the same for all of them, and it is also possible for the spacing between at least some of the slits (1242) to be set to be different from each other.

Meanwhile, FIG. 19 is a plan view of an ultrasonic focusing plate according to the 13th embodiment of the present invention.

Referring to FIG. 19, a plurality of slits (1342) formed on an ultrasonic focusing plate (1340) according to the 13th embodiment of the present invention are arranged in a matrix form to form a plurality of rows and columns, but are different from the first embodiment in that they are formed in a rectangular shape, and the remaining configuration and operation are similar to the first embodiment, so a detailed description of similar contents is omitted.

The above slits (1342) are formed in a plurality of places spaced apart from each other in a first direction (x) that is horizontal on the surface of the ultrasonic focusing plate (1340), and are also formed in a plurality of places spaced apart from each other in a second direction (y) that is perpendicular to the first direction (x) on the surface of the ultrasonic focusing plate (1340).

The shape of the above slits (1342) is explained as a rectangular shape as an example, but is not limited thereto and can be changed to various shapes such as squares and ovals.

In addition, the number of the above slits (1342) can be changed and applied in various ways.

In addition, the sizes of the slits (1342) are all set to the same for example, but this is not limited to this, and it is of course possible for at least some of the slits (1342) to be formed with different sizes.

Additionally, it is possible for the spacing between the slits (1342) to be set to be the same for all, and it is also possible for the spacing between at least some of the slits (1342) to be set to be different from each other.

Meanwhile, FIG. 20 is a plan view of an ultrasonic focusing plate according to the 14th embodiment of the present invention.

Referring to FIG. 20, a plurality of slits (1442) formed in an ultrasonic focusing plate (1440) according to the 14th embodiment of the present invention are formed to be long in a horizontal direction, and each slit (1442) is formed in a shape that gradually expands from the center of the ultrasonic focusing plate (1440) toward the outside, which is different from the 12th embodiment, and since the remaining configuration and operation are similar to the 12th embodiment, a detailed description of similar contents will be omitted.

The above slits (1442) are formed long in a first direction (x) that is horizontal on the surface of the ultrasonic focusing plate (1440), and are formed in a plurality of pieces spaced apart from each other in a second direction (y) that is perpendicular to the first direction (x) on the surface of the ultrasonic focusing plate (1440). However, the present invention is not limited thereto, and it is of course possible for a plurality of pieces to be formed spaced apart from each other in the first direction (x).

The shape of the above slits (1442) is explained as a ribbon shape that gradually expands in both directions from the center of the ultrasonic focusing plate (1440) toward the outside.

In addition, the number of the above slits (1442) can be changed and applied in various ways.

In addition, the sizes of the slits (1442) are all set to the same for example, but this is not limited to this, and it is of course possible for at least some of the slits (1442) to be formed with different sizes.

Additionally, it is possible for the spacing between the slits (1442) to be set to be the same for all, and it is also possible for the spacing between at least some of the slits (1442) to be set to be different from each other.

Meanwhile, FIG. 21 is a plan view of an ultrasonic focusing plate according to the 15th embodiment of the present invention.

Referring to FIG. 21, a plurality of slits (1542) formed on an ultrasonic focusing plate (1540) according to the 15th embodiment of the present invention are formed to be long in a horizontal direction, but each slit (1542) is formed in a shape that gradually decreases in length from the center of the ultrasonic focusing plate (1540) toward the outside, which is different from the 14th embodiment, and since the remaining configuration and operation are similar to those of the 14th embodiment, a detailed description of similar contents will be omitted.

The above slits (1542) are formed long in a first direction (x) that is horizontal on the surface of the ultrasonic focusing plate (1540), and are formed in a plurality of pieces spaced apart from each other in a second direction (y) that is perpendicular to the first direction (x) on the surface of the ultrasonic focusing plate (1540). However, the present invention is not limited thereto, and it is of course possible for a plurality of pieces to be formed spaced apart from each other in the first direction (x).

The shape of the above slits (1542) is explained as an example in which the shape gradually decreases in both directions from the center of the ultrasonic focusing plate (1540) toward the outside.

In addition, the number of the above slits (1542) can be changed and applied in various ways.

In addition, the sizes of the slits (1542) are all set to the same for example, but this is not limited to this, and it is of course possible for at least some of the slits (1542) to be formed with different sizes.

Additionally, it is possible for the spacing between the slits (1542) to be set to be the same for all, and it is also possible for the spacing between at least some of the slits (1542) to be set to be different from each other.

Meanwhile, FIG. 22 is a drawing schematically illustrating a high-intensity focused ultrasound generating device according to the 16th embodiment of the present invention.

Referring to FIG. 22, a high-intensity focused ultrasound generator according to a 16th embodiment of the present invention is different from the first embodiment in that one ultrasound focusing plate (1640) is installed in front of a plurality of transducers (1630) and arranged in a many-to-one (N:1) correspondence, and the remaining configuration and operation are similar to the first embodiment, so the description will focus on the differences and a detailed description of similar contents will be omitted.

The above ultrasonic focusing plate (1640) is formed to be larger than the size of the transducer (1630) so that it can simultaneously cover the front of a plurality of the above transducers (1630). The above ultrasonic focusing plate (1640) is described as being a circular plate, but is not limited thereto and can be changed to various shapes.

The above ultrasonic focusing plate (1640) diffracts, converts, and interferes waves of multiple ultrasonic waves emitted from each of the multiple transducers (1630) and focuses them onto a preset ultrasonic focusing point for each transducer (1630).

In the above ultrasonic focusing plate (1640), a plurality of slits (1642) are formed at each position facing the plurality of transducers (1630).

The above slits (1642) can be applied to any one of the first embodiment to the fifteenth embodiment.

In this embodiment, one ultrasonic focusing plate (1640) is matched to multiple transducers (1630) in a many-to-one (N:1) ratio to form one module, and it is also possible for multiple modules to form an array.

In this embodiment, the ultrasonic waves emitted from the transducer (1630) are described as plane waves, but are not limited thereto and may have other shapes.

In addition, the ultrasonic focusing plate (1640) may have a flat plate shape facing the transducer (1630), or may be formed into a three-dimensional shape.

Meanwhile, FIG. 23 is a drawing schematically illustrating a high-intensity focused ultrasound generating device according to the 17th embodiment of the present invention.

Referring to FIG. 23, a high-intensity focused ultrasound generator according to a 17th embodiment of the present invention is different from the first embodiment in that a plurality of ultrasound focusing plates (1740) are arranged in multiple stages in the direction of propagation of ultrasound in a one-to-many (1:N) correspondence in front of a transducer (1730), and the remaining configuration and operation are similar to those of the first embodiment, so that the description will focus on the differences and a detailed description of similar contents will be omitted.

In this embodiment, two first and second ultrasonic focusing plates (1741)(1742) are provided to match one transducer (1730) to form one module, and a plurality of the modules are configured to form an array. However, the present invention is not limited thereto, and the number of stacked ultrasonic focusing plates (1740) can be applied by changing them in various ways depending on the ultrasonic energy or the ultrasonic focusing point.

The first ultrasonic focusing plate (1741) is positioned in front of the transducer (1730) and has a plurality of first slits (1741a) formed therein. The shape or arrangement of the first slits (1741a) may be any of the first embodiment to the fifteenth embodiment.

The second ultrasonic focusing plate (1742) is positioned at a predetermined distance from the front of the first ultrasonic focusing plate (1741) in the direction of propagation of the ultrasonic waves, and a plurality of second slits (1742a) are formed. The shape or arrangement of the second slits (1742a) may be any one of the first embodiment to the fifteenth embodiment.

The first slits (1741a) and the second slits (1742a) may be formed to have the same size, shape, position, and arrangement, or at least some of them may be formed differently depending on the ultrasonic energy or ultrasonic focusing point.

In this embodiment, the ultrasonic waves emitted from the transducer (1730) are described as plane waves, but are not limited thereto and may have other shapes.

In addition, the first ultrasonic focusing plate (1741) is described as having a convex shape in which a portion facing the transducer (1730) is formed in a three-dimensional shape and protrudes convexly in the direction of propagation of the ultrasonic waves, but is not limited thereto, and at least a portion may be formed as a curved or inclined surface, or at least a portion may be formed in a stepped shape. In addition, the first ultrasonic focusing plate (1741) may also have a shape that protrudes convexly in the direction toward the transducer (1730). However, the first ultrasonic focusing plate (1741) is not limited thereto, and if the distance between the slits (1741a) of the first ultrasonic focusing plate (1741) and the transducer (1730) is formed to be different depending on the position, it may be applied by changing to various shapes.

In addition, the second ultrasonic focusing plate (1742) is described as being formed as a convex shape that protrudes convexly in the direction of propagation of the ultrasonic waves, but is not limited thereto, and at least a portion may be formed as a curved or inclined surface, or at least a portion may be formed in a stepped shape. In addition, the second ultrasonic focusing plate (1742) may also have a shape that protrudes convexly in the direction toward the first ultrasonic focusing plate (1741). However, the present invention is not limited thereto, and if the distance between the slits (1742a) of the second ultrasonic focusing plate (1742) and the first ultrasonic focusing plate (1741) is formed to be different depending on the position, it may be applied by changing to various shapes.

In addition, the first ultrasonic focusing plate (1741) and the second ultrasonic focusing plate (1742) may be formed to have the same size or shape, or may be formed to have at least some different parts depending on the ultrasonic energy or ultrasonic focusing point.

Meanwhile, FIG. 24 is a drawing schematically illustrating a high-intensity focused ultrasound generating device according to the 18th embodiment of the present invention.

Referring to FIG. 24, a high-intensity focused ultrasound generator according to an 18th embodiment of the present invention is arranged such that a plurality of ultrasound focusing plates (1840) are arranged in multiple stages in the direction of propagation of ultrasound in front of a transducer (1830) to correspond in a one-to-many (1:N) manner. However, the plurality of ultrasound focusing plates (1840) are each shaped like a flat plate, which is different from the 17th embodiment. The remaining configuration and operation are similar to the 17th embodiment, and therefore, the description will focus on the differences and a detailed description of similar contents will be omitted.

In this embodiment, two first and second ultrasonic focusing plates (1841)(1842) are provided to match one transducer (1830) to form one module, and a plurality of the modules are configured to form an array. However, the present invention is not limited thereto, and the number of stacked ultrasonic focusing plates (1840) can be applied by changing them in various ways depending on ultrasonic energy or ultrasonic focusing point.

The first ultrasonic focusing plate (1841) is positioned in front of the transducer (1830) and has a plurality of first slits (1841a) formed therein. The shape or arrangement of the first slits (1841a) may be any of the first embodiment to the fifteenth embodiment.

The second ultrasonic focusing plate (1842) is positioned at a predetermined distance from the front of the first ultrasonic focusing plate (1841) in the direction of propagation of the ultrasonic waves, and a plurality of second slits (1842a) are formed. The shape or arrangement of the second slits (1842a) may be any one of the first embodiment to the fifteenth embodiment.

The first slits (1841a) and the second slits (1842a) may be formed to have at least some of the same size, shape, position, and arrangement, or may be formed to have different sizes. In the present embodiment, the first slits (1841a) and the second slits (1842a) are described as having the same size and shape, but arranged in staggered positions. The positions of the first slits (1841a) and the second slits (1842a) may be set according to ultrasonic energy or ultrasonic focusing points.

In this embodiment, the ultrasonic waves emitted from the transducer (1830) are described as plane waves, but are not limited thereto and may have other shapes.

Meanwhile, FIG. 25 is a drawing schematically illustrating a high-intensity focused ultrasound generating device according to the 19th embodiment of the present invention.

Referring to FIG. 25, a high-intensity focused ultrasound generator according to a 19th embodiment of the present invention is different from the above embodiments in that the ultrasonic focusing module includes a coating layer (1940) that coats the surface of a transducer (1930) with a preset pattern using a sound-absorbing material to diffract ultrasonic waves emitted from the transducer (1930), converts them into waves having at least one different phase, and induces interference of the converted waves to focus the waves on a preset ultrasonic focusing point. Since the remaining configurations and operations are similar, detailed descriptions of similar configurations are omitted.

The above coating layer (1940) can be applied to any sound-absorbing material that is coated on the surface of the transducer (1930) and can absorb ultrasonic waves.

The thickness of the above coating layer (1940) can be varied, and it can be a shape that protrudes convexly in the direction of propagation of the ultrasonic waves, a shape that protrudes convexly in the direction toward the transducer (1930), a flat shape, or a shape that is stepped or inclined.

The above pattern can be applied in a form in which a plurality of holes (1940a) are arranged in various ways. The shape or arrangement of the holes (940a) can be any one of the first embodiment to the fifteenth embodiment.

Meanwhile, FIG. 26 is a drawing schematically illustrating a high-intensity focused ultrasound generating device according to the 20th embodiment of the present invention.

Referring to FIG. 26, it is of course possible for a high-intensity focused ultrasound generating device according to the 20th embodiment of the present invention to include one transducer (30) and one ultrasound focusing plate (40).

Although the present invention has been described with reference to the embodiments shown in the drawings, these are merely exemplary, and those skilled in the art will understand that various modifications and equivalent other embodiments are possible therefrom. Accordingly, the true technical protection scope of the present invention should be determined by the technical idea of the appended claims.

10: Ultrasonic radiation frame 20: Transducer holder
30: Transducer
40,140,240,340,440,540,640,740,840,940,1040,1140,1240,1340,1440,1540,1640,1740,1840: Ultrasonic Focusing Plate
42,142,242,342,442,542,642,742,942,1042,1142,1242,1342,1442,1542,1642,1742,1842: slit

Claims (16)

A transducer that emits ultrasonic waves when power is applied;
An ultrasonic focusing module is provided in front of the transducer, and is formed so that ultrasonic waves emitted from the transducer can pass through it, and has at least one slit formed therein, so that the ultrasonic waves are diffracted as they pass through, and are converted into waves having at least one different phase, and induce interference of the converted waves to focus the waves on a preset ultrasonic focusing point.
A high-intensity focused ultrasound generator that focuses ultrasound using a slit. In claim 1,
The above ultrasonic focusing module,
It is characterized in that the surface facing the transducer is formed in a flat plate shape so as to simultaneously receive ultrasonic waves emitted from the transducer.
A high-intensity focused ultrasound generator that focuses ultrasound using a slit. In claim 1,
The above ultrasonic focusing module,
Characterized in that at least a portion of the surface facing the transducer is formed in a three-dimensional shape so that the separation distance from the transducer varies depending on the location.
A high-intensity focused ultrasound generator that focuses ultrasound using a slit. In claim 1,

The ultrasonic waves passing through the above ultrasonic focusing module are characterized by being converted into spherical waves.
A high-intensity focused ultrasound generator that focuses ultrasound using a slit. In claim 1,
The above transducer comprises a plurality of:
At least some of the above plurality of transducers emit ultrasound waves having at least one different phase,
The ultrasonic waves passing through the above ultrasonic focusing module are characterized by being converted into spherical waves.
A high-intensity focused ultrasound generator that focuses ultrasound using a slit. In claim 1,
The separation distance between the above transducer and the above ultrasonic focusing module is,
characterized in that it is set according to at least one of the diameter of the transducer and the wavelength of the ultrasonic wave.
A high-intensity focused ultrasound generator that focuses ultrasound using a slit. In claim 1,
The size of the above slit is characterized by being set according to the wavelength of the ultrasonic wave.
A high-intensity focused ultrasound generator that focuses ultrasound using a slit. In claim 7,
The above slits are formed in multiple numbers spaced apart from each other,
characterized in that at least some of the above plurality of slits are formed with different sizes from each other.
A high-intensity focused ultrasound generator that focuses ultrasound using a slit. In claim 1,
The above slits are formed in multiple numbers spaced apart from each other,
The spacing between the plurality of slits is characterized in that it is set according to the wavelength of the ultrasonic waves.
A high-intensity focused ultrasound generator that focuses ultrasound using a slit. In claim 1,
The above slits are formed in multiple numbers spaced apart from each other,
The above plurality of slits are characterized in that they are arranged to form at least one row and at least one column.
A high-intensity focused ultrasound generator that focuses ultrasound using a slit. In claim 1,
The above slits are formed in multiple numbers spaced apart from each other,
The above plurality of slits are characterized in that they are arranged radially from the center of the ultrasonic focusing module.
A high-intensity focused ultrasound generator that focuses ultrasound using a slit. In claim 1,
The above slit is characterized in that the cross-section is formed in at least one shape among a circle, a polygon, and a round shape.
A high-intensity focused ultrasound generator that focuses ultrasound using a slit. In claim 1,
The above slit is characterized in that the cross-section is formed in at least one of a ring shape and an arc shape.
A high-intensity focused ultrasound generator that focuses ultrasound using a slit. In claim 1,
The above slit is characterized in that its shape is formed in a shape that expands or contracts as it goes outward from the center of the ultrasonic focusing module.
A high-intensity focused ultrasound generator that focuses ultrasound using a slit. An ultrasonic radiation frame having a plurality of coupling holes formed therein;
Transducer holders each inserted into the coupling holes in front of the ultrasonic radiation frame and detachably coupled through the ultrasonic radiation frame;
A plurality of transducers are arranged spaced apart from each other on the front of the ultrasonic radiation frame, and are mounted with their front surfaces exposed in the transducer holders, and emit ultrasonic waves when power is applied;
An ultrasonic focusing module which is arranged to be spaced apart from the transducer in the direction of propagation of the ultrasonic waves and is detachably coupled to the ultrasonic radiation frame, and has a surface formed in a flat plate shape facing the transducer so as to simultaneously receive ultrasonic waves emitted from the transducer, and has a plurality of slits through which the ultrasonic waves pass, so that the ultrasonic waves are diffracted as they pass through, are converted into waves having at least one different phase, and induce interference of the converted waves to focus the waves at a preset ultrasonic focusing point;
Including a coupling member that detachably couples the above ultrasonic focusing module to the above ultrasonic radiation frame.
A high-intensity focused ultrasound generator that focuses ultrasound using a slit. An ultrasonic radiation frame having a plurality of coupling holes formed therein;
Transducer holders each inserted into the coupling holes in front of the ultrasonic radiation frame and detachably coupled through the ultrasonic radiation frame;
A plurality of transducers are arranged spaced apart from each other on the front of the ultrasonic radiation frame, and are mounted with their front surfaces exposed in the transducer holders, and emit ultrasonic waves when power is applied;
An ultrasonic focusing module, which is arranged to be spaced apart from the transducer in the direction of propagation of the ultrasonic waves and is detachably coupled to the ultrasonic radiation frame, and at least a portion of a surface facing the transducer is formed in a three-dimensional shape so that the distance from the transducer varies depending on the position, and which has a plurality of slits through which the ultrasonic waves pass, so that the ultrasonic waves are diffracted as they pass through, are converted into waves having at least one different phase, and induce interference of the converted waves to focus the waves at a preset ultrasonic focusing point;
Including a coupling member that detachably couples the above ultrasonic focusing module to the above ultrasonic radiation frame.
A high-intensity focused ultrasound generator that focuses ultrasound using a slit.

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