CN209911530U - Magnetic resonance system - Google Patents
Magnetic resonance system Download PDFInfo
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- CN209911530U CN209911530U CN201920647406.7U CN201920647406U CN209911530U CN 209911530 U CN209911530 U CN 209911530U CN 201920647406 U CN201920647406 U CN 201920647406U CN 209911530 U CN209911530 U CN 209911530U
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Abstract
The utility model relates to a magnetic resonance system, including setting up the image acquisition component in the hole intracavity that is encircled by the magnetic resonance equipment body, first location sign to and set up the second location sign on local coil surface. And the specific position of the local coil in the hole cavity of the magnetic resonance equipment body is determined by sensing the position change between the first positioning mark and the second positioning mark through the image acquisition element. When a patient undergoes a magnetic resonance examination, the local coil is worn on the patient. When the position between the first positioning mark and the second positioning mark accords with the preset position relation, the patient reaches the preset position in the magnetic resonance equipment, so that the operation is simpler, the flow is simplified, and potential hidden dangers caused by the fact that the laser lamp irradiates on the eyes of the patient are avoided.
Description
Technical Field
The present invention relates to imaging systems, and more particularly to a magnetic resonance system.
Background
When examining a patient with a magnetic resonance system, it is necessary to precisely locate the position of the patient at the examination center.
In the prior art, a laser lamp is provided inside the inspection center. Before a patient enters an examination center, an operator is required to turn on a laser lamp, and the laser lamp irradiates a preset position for imaging examination of the patient. The laser lamp shines preset position all the time, and operating personnel control the sick bed that bears the patient and get into the inspection center after, through the control to the sick bed make the region that the laser lamp shines for waiting to detect the position on the patient's health, stop the removal to the patient, restart inspection procedure. During the examination of the patient by the magnetic resonance system, the operator needs to observe the status of the patient by using the laser lamp.
When a patient is examined by a magnetic resonance system, an operator needs to operate a sickbed by taking the position irradiated by a laser lamp as a standard so as to move the part to be examined of the patient to the position irradiated by the laser lamp, so that the operation is complicated and time is wasted.
SUMMERY OF THE UTILITY MODEL
In view of the above, it is necessary to provide a magnetic resonance system to solve the problems of complicated operation and time waste in moving a patient to a preset examination position.
A magnetic resonance system comprising a magnetic resonance apparatus body surrounding a bore, a patient bed capable of carrying a local coil, and a local coil movable with the patient bed to move into or out of the bore, the magnetic resonance system further comprising:
the image acquisition element is positioned in the bore cavity and arranged on the surface of the magnetic resonance equipment body;
the first positioning mark is positioned in the hole cavity and above the sickbed;
the second positioning mark is arranged on the surface of the local coil;
the first and/or second location markers can be perceived by an image acquisition element to determine the position of the local coil.
In one embodiment, the image capturing element is disposed above the patient bed, and the first positioning mark is integrated in the image capturing element.
In one embodiment, the image capturing element is disposed at the center of the inner wall of the top of the magnetic resonance apparatus body.
In one embodiment, a support is further disposed on the magnetic resonance apparatus body, one end of the support is fixed outside the bore, the other end of the support is connected to the image capturing element, and the support can extend to send the image capturing element into the bore.
In one embodiment, the second positioning identifier comprises a coil identifier and a scanning position identifier;
the coil mark is arranged at one end of the local coil close to the magnetic resonance equipment body;
the scanning part mark is arranged between the coil mark and one end far away from the magnetic resonance equipment body.
In one embodiment, the second positioning identifier comprises two coil identifiers and one scanning part identifier;
the two coil marks are respectively arranged at one end of the local coil close to the magnetic resonance equipment body and one end of the local coil far away from the magnetic resonance equipment body;
the scanning part mark is arranged between the two coil marks.
In one embodiment, the first positioning mark and the second positioning mark have the same shape.
In one embodiment, the image capturing element includes an image sensor and a protective cover disposed outside the image sensor, and the first positioning mark is disposed on the protective cover.
In one embodiment, the image capturing element includes a camera, and the first positioning identifier is disposed on a lens of the camera.
In one embodiment, the image capturing element further comprises a data processing chip, and the data processing chip performs positioning through the positions of the first positioning identifier and the second positioning identifier in the image captured by the image capturing element.
The magnetic resonance system comprises a magnetic resonance equipment body, a sickbed and a local coil. The body of the magnetic resonance apparatus surrounds a bore, the bed can carry the local coil, and movement by the bed can move the local coil into or out of the bore. The magnetic resonance system also comprises an image acquisition element, a first positioning mark and a second positioning mark. The image acquisition element is arranged on the surface of the magnetic resonance equipment body corresponding to the hole cavity; the first positioning mark is arranged in the hole cavity and corresponds to the position above the sickbed; the second positioning mark is arranged on the surface of the local coil, and the image acquisition element senses the position change between the first positioning mark and the second positioning mark to determine the specific position of the local coil in the hole cavity of the magnetic resonance equipment body. When a patient undergoes a magnetic resonance examination, the local coil is worn on the patient. When the position between the first positioning mark and the second positioning mark accords with the preset position relation, the patient reaches the preset position in the magnetic resonance equipment, so that the operation is simpler, the flow is simplified, and potential hidden dangers caused by the fact that the laser lamp irradiates on the eyes of the patient are avoided.
Drawings
Figure 1 is a side sectional view of a magnetic resonance apparatus body in one embodiment thereof;
figure 2 is a top cross-sectional view of the body of the magnetic resonance apparatus in one embodiment.
Detailed Description
In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the drawings of the embodiments of the present invention are combined below to clearly and completely describe the technical solution of the embodiments of the present invention. It is to be understood that the embodiments described are only some of the embodiments of the present invention, and not all of them. All other embodiments, which can be obtained by a person skilled in the art without any inventive work based on the described embodiments of the present invention, belong to the protection scope of the present invention.
When the magnetic resonance system inspects a patient, the part to be inspected of the patient needs to be at a fixed position in the magnetic resonance system, so as to prevent the problem that the data acquisition is wrong when the imaging system inspects the patient, so that the inspection result has deviation. Therefore, a device capable of positioning a patient is needed within a magnetic resonance system. When the patient is present at the preset position, the imaging examination is started again.
The utility model provides a magnetic resonance system, including magnetic resonance equipment body, sick bed and local coil, the magnetic resonance equipment body encircles and forms the vestibule, and the sick bed can bear the local coil, and the local coil can move along with the sick bed in order to move into or shift out the vestibule, and the magnetic resonance equipment still includes the image acquisition component, is located the cavern, and sets up on the surface of magnetic resonance equipment body; the first positioning mark is positioned in the hole cavity and above the sickbed; the second positioning mark is arranged on the surface of the local coil; the first location indicator and/or the second location indicator can be perceived by the image acquisition element to determine the position of the local coil.
The magnetic resonance equipment is a medical imaging equipment which utilizes the characteristic of atomic nuclear spin motion, generates signals after being excited by radio frequency pulses in an external magnetic field, then detects the signals by a detector, inputs the signals into a computer, and displays images on a screen through processing and conversion.
In this embodiment, the magnetic resonance apparatus body is provided with a bore for accommodating a patient to perform an imaging examination, and the image capturing element is disposed in the bore of the medical imaging apparatus body, specifically at a position where an image of the patient can be captured. The first positioning mark is arranged in the hole cavity and positioned above the sickbed, and when the image acquisition element acquires an image, the first positioning mark is positioned at a fixed position in the image. The second positioning mark is arranged on the surface of the local coil. The local coil is worn on the body while the patient is undergoing a magnetic resonance examination. When the patient is placed in the magnetic resonance equipment body, the image acquisition element acquires a second positioning mark arranged on a local coil worn on the patient. The specific position of the patient in the medical imaging device can be determined by the position between the first positioning mark and the second positioning mark in the acquired image. When the position relation between the first positioning mark and the second positioning mark accords with the preset relation, the situation that the patient reaches the preset examination position in the magnetic resonance equipment body is shown, and then imaging examination can be started. The positioning mode is simpler to operate, other potential hidden dangers cannot be caused to the patient when the patient is subjected to imaging examination, and the examination process is safer.
In this embodiment, the image capturing element is disposed above the patient bed, and the first positioning mark may be integrated into the image capturing element, for example, the image capturing unit is disposed on the upper surface of the inner wall of the scanning chamber. Therefore, when the image acquisition element acquires an image signal, the first positioning mark always appears in the acquired image, and the position between the local coil and the image acquisition element is represented by the position relation between the first positioning mark and the second positioning mark in the acquired image. Of course, in other embodiments, the image capturing element and the first positioning mark can be separately disposed, as long as the center alignment of the two in the vertical direction is ensured.
As shown in fig. 1, the magnetic resonance apparatus body 1 includes a housing 11, and a magnet unit 12, a gradient coil 13, and a volume coil 14 provided inside the housing 11. The magnet unit 12 may generate a strong and steady main magnetic field, while the gradient coils 13 generate gradient magnetic fields. The magnetic resonance apparatus also has a bore 15 which is surrounded by the inner wall of the housing 11 and which receives the patient. A movable sickbed 3 is arranged in the cavity 15, a patient lies on the sickbed 3, and the patient carried by the sickbed 3 moves into the cavity 15 from the outside of the magnetic resonance equipment for scanning examination. When the patient moves into the hole 15 along with the sickbed 3, the position of the patient in the hole 15 is determined, and after the patient moves to the accurate position, the scanning and checking work is started.
As shown in fig. 1, the means for determining the position of the patient on the body of the magnetic resonance apparatus comprise an image acquisition element 2 and a local coil 4. The first positioning marks are arranged on the image recording element 2 and the second positioning marks are arranged on the local coil 4. The image acquisition element 2 is arranged on the magnetic resonance equipment body 1, and the specific position of the patient in the cavity 15 is determined by the positions of the first positioning mark and the second positioning mark in the image acquired by the image acquisition element 2. The local coil 4 is placed on the patient and is matched with the magnetic resonance equipment body to carry out body scanning examination on the patient.
As shown in fig. 2, the second positioning mark includes a coil mark 42 and a scanning part mark 41, the coil mark 42 is disposed at one end of the local coil 4 close to the magnetic resonance apparatus body 1; the scanning part mark 41 is disposed between the coil mark 42 and an end far from the magnetic resonance apparatus body 1.
In this embodiment, the local coil 4 needs to be placed on the body before the patient needs to perform a magnetic resonance scan. During the placement of the local coil 4, the scanning site identifier 41 on the local coil 4 is placed on the patient body at the site to be scanned. For example, when the part of the patient to be examined is the abdomen, the scanning part mark 41 on the local coil 4 is correspondingly placed at the position of the abdomen of the patient. And the coil marker 42 is placed near one end of the magnetic resonance apparatus. When the patient bed 3 starts to move, the coil mark 42 on the local coil 4 will enter the hole cavity 15 first in the process that the patient moves along with the patient bed 3 to the hole cavity 15. At this time, when the image acquisition element 2 acquires an image with the coil identifier 42, the moving speed of the patient bed 3 is slowed down until the position relationship between the scanning part identifier 41 and the first positioning identifier reaches the preset position relationship in the image acquired by the image acquisition element 2, which indicates that the patient has reached the scanning position, and the patient bed 3 is stopped. Design like this, make the patient at the removal in-process, when the distance of scanning position is soon arrived, slow down the translation rate, make the location more accurate to can not miss preset scanning position, with having avoided sick bed 3 round trip movement in vestibule 15, make the patient experience feel better.
As shown in fig. 2, the second positioning markers include two coil markers 42 and one scanning site marker 41. The two coil marks 42 are respectively arranged at one end of the local coil 4 close to the magnetic resonance apparatus body 1 and one end of the local coil 4 far from the magnetic resonance apparatus body 1, and the scanning part mark 41 is arranged between the two coil marks 42. Coil marks 42 are provided at both ends of the local coil 4, and when the local coil 4 is placed on a human body, only the scanning part mark 41 needs to be placed at a corresponding position, and either end of the local coil 4 can be placed at a position close to or far from the magnetic resonance apparatus body 1.
In this embodiment, the first positioning mark and the second positioning mark have the same shape. The position of the first positioning mark corresponds to the scanning preset position, that is, the image capturing element 2 is disposed at a position corresponding to the scanning preset position. In the process of acquiring the image, the first positioning mark is always present in the fixed position of the image by the image acquisition element 2, along with the movement of the patient bed 3, the position of the scanning part mark 41 in the second positioning mark in the image is close to the first positioning mark along with the movement of the patient bed 3, and when the patient is transferred to the preset scanning position in the magnetic resonance device along with the patient bed 3, the first positioning mark is overlapped with the second positioning mark. Since the first location marker is the same shape as the second location marker, only one marker will appear in the acquired image at that time. When the two positioning marks in the image collected by the image collecting element 2 are changed into one positioning mark, it indicates that the patient has reached the scanning preset position along with the patient bed 3.
As shown in fig. 2, the image pickup element 2 is provided at the center of the top inner wall of the magnetic resonance apparatus body 1. The image capturing element 2 is arranged in correspondence with a preset position to be scanned by the patient. The preset position of the general scan is set at the center position of the magnetic resonance apparatus body 1. The magnetic field uniformity in the magnetic resonance apparatus body 1 is optimized at the center of the main magnetic field generated by the magnet. For example, a receiving cavity may be provided in the inner wall of the magnetic resonance apparatus body 1. The image capturing element 2 may be disposed within the receiving cavity.
In the present embodiment, the image capturing element 2 is disposed on the inner wall of the housing 11 facing the cavity 15, specifically, on the circumference of the inner wall corresponding to the axial center point of the inner wall. When a patient lies on the sickbed 3, the patient moves into the hole cavity 15 of the magnetic resonance equipment body 1 from the sickbed 3, and reaches a scanning position, the image acquisition element 2 is arranged right above the position of the patient to be scanned.
In this embodiment, the image capturing element 2 includes an image sensor and a protective cover disposed outside the image sensor, and the first positioning mark is disposed on the protective cover. In the present embodiment, the image sensor is embedded in the inner wall of the housing 11. The protective cover is arranged on the inner wall of the shell 11 corresponding to the position where the image sensor is arranged, and the protective cover is flush with the inner wall of the shell 11 in the circumferential direction. In this embodiment, the protective cover is made of transparent material such as glass or plastic, so that the image sensor can acquire pictures through the transparent protective cover. First location sign sets up on transparent protecting cover, and when image sensor gathered the picture, picture fixed position appears always in first location sign.
In this embodiment, the image capturing element 2 includes a camera, and the first positioning identifier is disposed on a lens of the camera. The camera is fixed at the top end position of the inner wall of the shell 11 of the magnetic resonance equipment body 1. The first positioning identification is arranged on the lens of the camera, so that when the camera collects pictures, the first positioning identification always has a fixed position of the pictures.
In this embodiment, the magnetic resonance apparatus body 1 is further provided with a support, one section of the support is fixed outside the bore 15, the other end of the support is connected with the image capturing element 2, and the support can be extended to send the image capturing element 2 into the bore 15.
In other embodiments, the camera is integrated in the top center of the inner wall of the housing 11 of the magnetic resonance apparatus body 1.
In this embodiment, the image capturing element 2 further includes a data processing chip, and the data processing chip performs positioning according to the positions of the first positioning identifier and the second positioning identifier in the image captured by the image capturing element 2. When only the first positioning mark appears in the image acquired by the data processing chip through the image acquisition element 2, it indicates that the patient does not enter the bore 15 of the magnetic resonance device body 1; when the coil mark 42 on the local coil 4 appears in the image acquired by the data processing chip through the image acquisition element 2, it indicates that the patient enters the cavity 15 from the outside of the device, and then sends a corresponding instruction to the control system, so that the moving speed of the sickbed 3 is reduced. When the scanning part identifier 41 in the continuously acquired image slowly approaches to the first positioning identifier, it indicates that the patient also slowly approaches to the preset position along with the movement of the patient bed 3 until the scanning part identifier 41 in the acquired image is overlapped with the first positioning identifier, and only one positioning identifier appears, it indicates that the part of the patient to be scanned and examined has moved to the position right below the image acquisition element 2, and then sends a corresponding instruction to the control system, and stops moving the patient bed 3 and performs scanning and examination on the patient.
In this embodiment, the data processing chip is a single chip microcomputer, or a chip with a capability of analyzing pictures, such as a control processing chip in a computer.
The magnetic resonance system comprises a magnetic resonance equipment body, a sickbed and a local coil. The body of the magnetic resonance apparatus surrounds a bore, the bed can carry the local coil, and movement by the bed can move the local coil into or out of the bore. The magnetic resonance system also comprises an image acquisition element, a first positioning mark and a second positioning mark. The image acquisition element is arranged on the surface of the magnetic resonance equipment body corresponding to the hole cavity; the first positioning mark is arranged in the hole cavity and corresponds to the position above the sickbed; the second positioning mark is arranged on the surface of the local coil, and the image acquisition element senses the position change between the first positioning mark and the second positioning mark to determine the specific position of the local coil in the hole cavity of the magnetic resonance equipment body. When a patient undergoes a magnetic resonance examination, the local coil is worn on the patient. When the position between the first positioning mark and the second positioning mark accords with the preset position relation, the patient reaches the preset position in the magnetic resonance equipment, so that the operation is simpler, the flow is simplified, and potential hidden dangers caused by the fact that the laser lamp irradiates on the eyes of the patient are avoided.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only represent some embodiments of the present invention, and the description thereof is specific and detailed, but not to be construed as limiting the scope of the present invention. It should be noted that, for those skilled in the art, without departing from the spirit of the present invention, several variations and modifications can be made, which are within the scope of the present invention. Therefore, the protection scope of the present invention should be subject to the appended claims.
Claims (10)
1. A magnetic resonance system comprising a magnetic resonance apparatus body surrounding a bore, a patient bed capable of carrying a local coil, and a local coil movable with the patient bed to move into or out of the bore, the magnetic resonance system further comprising:
the image acquisition element is positioned in the bore cavity and arranged on the surface of the magnetic resonance equipment body;
the first positioning mark is positioned in the hole cavity and above the sickbed;
the second positioning mark is arranged on the surface of the local coil;
the first and/or second location markers can be perceived by an image acquisition element to determine the position of the local coil.
2. The system of claim 1, wherein the image acquisition element is disposed above the patient bed and the first positioning marker is integrated within the image acquisition element.
3. The magnetic resonance system according to claim 1 or 2,
the image acquisition element is arranged in the center of the inner wall of the top of the magnetic resonance equipment body.
4. The magnetic resonance system of claim 1,
the magnetic resonance equipment body is further provided with a support, one end of the support is fixed outside the hole cavity, the other end of the support is connected with the image acquisition element, and the support can extend to send the image acquisition element into the hole cavity.
5. The magnetic resonance system of claim 1,
the second positioning mark comprises a coil mark and a scanning part mark;
the coil mark is arranged at one end of the local coil close to the magnetic resonance equipment body;
the scanning part mark is arranged between the coil mark and one end far away from the magnetic resonance equipment body.
6. The magnetic resonance system of claim 1,
the second positioning mark comprises two coil marks and a scanning part mark;
the two coil marks are respectively arranged at one end of the local coil close to the magnetic resonance equipment body and one end of the local coil far away from the magnetic resonance equipment body;
the scanning part mark is arranged between the two coil marks.
7. The magnetic resonance system of claim 1,
the first positioning mark and the second positioning mark are the same in shape.
8. The system of claim 2, wherein the image capturing element comprises an image sensor and a protective cover disposed outside the image sensor, the first positioning indicator being disposed on the protective cover.
9. The system of claim 2, wherein the image capturing element comprises a camera, and the first positioning indicator is disposed on a lens of the camera.
10. The magnetic resonance system of claim 1, wherein the image capturing element further comprises a data processing chip, and the data processing chip is configured to locate the first positioning mark and the second positioning mark in the image captured by the image capturing element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920647406.7U CN209911530U (en) | 2019-05-07 | 2019-05-07 | Magnetic resonance system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920647406.7U CN209911530U (en) | 2019-05-07 | 2019-05-07 | Magnetic resonance system |
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| CN209911530U true CN209911530U (en) | 2020-01-07 |
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| CN201920647406.7U Active CN209911530U (en) | 2019-05-07 | 2019-05-07 | Magnetic resonance system |
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Address after: 201807 Shanghai City, north of the city of Jiading District Road No. 2258 Patentee after: Shanghai Lianying Medical Technology Co., Ltd Address before: 201807 Shanghai City, north of the city of Jiading District Road No. 2258 Patentee before: SHANGHAI UNITED IMAGING HEALTHCARE Co.,Ltd. |