KR102353719B1 - Detachable liquid level sensing device for infusion solution pack and casing device for the infusion solution pack using the device - Google Patents

Abstract

The present invention relates to a detachable infusion pack level sensing device and an IV pack casing device using the device. and a sensing layer that is fixed on the patch layer and includes a sensor for detecting information on the solution in the solution pack or the solution pack.

Description

DETACHABLE LIQUID LEVEL SENSING DEVICE FOR INFUSION SOLUTION PACK AND CASING DEVICE FOR THE INFUSION SOLUTION PACK USING THE DEVICE

The present invention relates to a detachable infusion pack level sensing device and an infusion pack casing device using the device, and more particularly, to a detachable infusion pack that is detachable on the outer surface of the infusion pack and measures the level of infusion in the infusion pack. It relates to a water level sensing device and an infusion pack casing device that further facilitates the measurement of the water level using the water level sensing device.

In order to quickly supply moisture, salt, nutrients, etc. to the patient in the hospital, the fluid is administered. The fluid contained in the fluid pack is administered into the patient's body using a guide tube and a catheter.

At this time, since the fluid in the infusion pack is not automatically replaced after all of the fluid is administered, if left unattended after all the fluid in the infusion pack is administered, air may flow into the blood vessel of the patient.

Therefore, it is necessary to detect the level of the infusion pack so that the medical staff can recognize it, so that the infusion pack can be replaced at an appropriate time.

Japanese Patent Laid-Open No. 2007-240472

Accordingly, an object of the present invention is to solve such a problem in the prior art, and it is possible to measure the level of the infusion solution by attaching and detaching it to the outer surface of the infusion pack, so that the water level can be measured without contamination of the internal fluid. It is to provide a pack level sensing device.

Another object of the present invention is to provide an infusion pack casing device that improves measurement precision and reliability of measurement values when the water level is measured with an infusion pack water level sensing device attached to the outer wall of the infusion pack.

The problems to be solved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

The above object, according to the present invention, a patch layer to enable attachment and detachment to the outer surface of the infusion pack; and a sensing layer that is fixed on the patch layer and includes a sensor for detecting the level of the infusion solution in the infusion pack.

Here, in the sensor, a plurality of electrode parts are disposed to be spaced apart in the longitudinal direction, and between the ground electrode part of any one of the plurality of electrode parts and the other electrode part, based on the change in the capacitance value according to the change of the water level inside the IV pack to detect the level of the sap in the sap pack.

Here, the sensor may further include a connection part for connecting the plurality of electrode parts in a longitudinal direction, and electrically connect the ground electrode part and the remaining electrode part through the connection part, respectively.

Here, the electrode part may be patterned and formed in a flexible stretchable structure.

Here, the electrode part may have a form in which a serpentine structure is radially formed.

Here, the connection part may be formed in a flexible stretchable structure.

Here, the connection part may be formed in a form in which a pattern is repeated in the longitudinal direction.

Here, the patch layer may include a first patch layer having elasticity; and a second patch layer formed on the first patch layer and having adhesiveness and elasticity to fix the sensing layer.

Here, the first patch layer may be formed of any one of PDMS and ECOFLEX.

Here, the second patch layer may be formed by mixing and curing PEIE with uncured PDMS.

Here, a plurality of holes penetrating through the patch layer may be formed so as to be stretched and detachably attached to the outer surface of the infusion pack.

Here, it may further include a communication unit for transmitting the information sensed through wireless communication to the outside.

In addition, according to the present invention, the above object can be achieved by an infusion pack casing device including a case for accommodating therein the infusion pack to which the above-described IV pack level sensing device is attached.

Here, it may further include an infusion pack shape maintaining part formed inside the case and supporting the outside of the infusion pack so as to correct an external change of the infusion pack according to a decrease in the infusion pack in the infusion pack.

Here, the infusion pack shape maintaining part may be formed to protrude from the inner wall of the case to elastically support the infusion pack.

Here, the infusion pack shape maintaining part may be formed to protrude in a plurality of vertical directions of the inner wall of the case.

Here, the IV pack shape maintaining unit may be formed symmetrically on the inner wall of the case.

Here, the case may be provided with a display unit for visually displaying the water level sensed by the infusion pack level sensing device.

According to the detachable infusion pack level sensing device of the present invention and the infusion pack casing device using the device as described above, a detachable infusion pack water level sensing device is attached to the outer surface of the infusion pack without arranging the sensor inside the infusion pack. In order to measure the water level, it is possible to prevent the sap from being contaminated by the sensor, and there is an advantage in that there is no need to open the sap pack to attach the sensor.

In addition, there is an advantage that a water level sensing device can be manufactured inexpensively and quickly through a patterning process using a laser.

In addition, there is an advantage that the water level sensing device can be manufactured in various lengths according to the number of electrode parts, so that it can be easily applied and used to an infusion pack of various sizes.

In addition, there is an advantage that the sensor can be attached to a curved surface without damage to the sensor by forming a flexible and stretchable structure.

In addition, the infusion pack is used in a separate case to compensate for the change in the shape of the infusion pack due to the decrease in the amount of infusion, so as to maintain close contact between the infusion sensing device and the infusion pack, thereby increasing the accuracy of the sensing value, and increasing the infusion pack It is possible to increase the reliability of the sensed value by minimizing the shape change of the

In addition, there is an advantage that the state of the infusion pack can be remotely monitored by transmitting the sensing information to the medical staff or guardians in real time by wireless communication.

1 shows a detachable infusion pack water level sensing device according to an embodiment of the present invention.
FIG. 2 shows the sensor of the sensing layer in FIG. 1 .
3 shows a state in which the water level sensing device of FIG. 1 is attached to the infusion pack.
FIG. 4 illustrates a manufacturing process of the water level sensing device of FIG. 1 .
Figure 5 shows the inside of the infusion pack casing device according to an embodiment of the present invention.
6 and 7 show an infusion pack housing state in which a detachable water level sensing device according to the present invention is attached to the infusion pack casing device of FIG. 5 .
8 is a perspective view illustrating the outside of the infusion pack casing device of FIG. 5 .

The specific details of the embodiments are included in the detailed description and drawings.

Advantages and features of the present invention and methods of achieving them will become apparent with reference to the embodiments described below in detail in conjunction with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but may be implemented in various different forms, and only these embodiments allow the disclosure of the present invention to be complete, and common knowledge in the art to which the present invention pertains It is provided to fully inform those who have the scope of the invention, and the present invention is only defined by the scope of the claims. Like reference numerals refer to like elements throughout

Hereinafter, the present invention will be described with reference to the drawings for explaining a detachable infusion pack water level sensing device and an infusion pack casing device using the device according to embodiments of the present invention.

The detachable infusion pack level sensing device according to the present invention is a device that attaches a sensing device to the outer surface of the IV pack and measures the level of the IV fluid inside the IV pack from a sensor in close contact with the outer surface of the IV pack.

Since the water level sensing device is detachable from the outer surface of the infusion pack, it is possible to measure the level of the infusion by simply attaching it to the outer surface of the infusion pack when administering the infusion.

A detachable infusion pack water level sensing device according to an embodiment of the present invention will be described with reference to FIGS. 1 to 4 .

1 shows a detachable infusion pack water level sensing device according to an embodiment of the present invention, FIG. 2 shows the sensor of the sensing layer in FIG. 1, and FIG. 3 is the water level sensing device of FIG. Showing the attached state, FIG. 4 shows a manufacturing process of the water level sensing device of FIG.

The water level sensing device may include a sensing layer 150 and a patch layer 110 .

The sensing layer 150 is fixed on the patch layer 110 . A sensor 125 for detecting a water level is formed in the sensing layer 150 , and the sensor 125 may include a plurality of electrode units 122 and a connection unit 124 .

When the water level sensing device 100 is attached to the outer surface of the IV pack 200 by the patch layer 110 , the electrode part 122 constituting the sensing layer 150 is in close contact with the outer surface of the IV pack 200 . to measure the water level. As shown in FIG. 2 , the electrode part 122 has a shape in which a plurality of electrode parts 122 are spaced apart from each other in the longitudinal direction. Each electrode part 122 is formed in the same shape, and adjacent electrode parts 122 are not electrically connected. The lowermost electrode part 122b forms a ground electrode, and the lowermost electrode part 122b and the remaining electrode parts 122a are electrically connected to each other through a connection part 124 .

)의

값이 변화하여 각 전극부(122a, 122b) 쌍을 통해 구해지는 C값 또는 전압(V)값이 변화하게 되는데, 이를 분석하여 수액팩(200) 내의 수위 변화를 감지할 수가 있다. 3 shows a state in which the water level sensing device 100 according to the present invention is attached to the outer surface of the IV pack 200, two electrode parts 122a and 122b electrically connected including a ground electrode and the IV pack 200 ) and the air will form a capacitor. Therefore, when a voltage is applied between the two electrode parts 122a and 122b, the capacitance value (

)of

As the value changes, the C value or the voltage (V) value obtained through each pair of the electrode parts 122a and 122b changes.

Therefore, if only the number of electrode parts 122 is increased in the longitudinal direction, it is possible to easily manufacture a water level sensing device for the IV pack 200 of various sizes.

In this case, the electrode part 122 is preferably formed in a flexible and stretchable structure as shown in FIG. 2 . The sensing layer 150 including the electrode part 122 is formed in the form of a film, and when it is attached to the outer surface of the IV pack 200 forming a curved surface, it is formed in a structure that can be easily deformed according to the shape of the outer surface. it is preferable Accordingly, in the present invention, the electrode part 122 is patterned in a flexible and stretchable structure so that it can be easily deformed according to the shape of the outer surface even when attached to a curved surface. Here, the flexible and stretchable structure means that the material of the electrode part 122 does not have flexible or stretchable properties, but can be easily deformed by a structural shape. For example, as illustrated, the electrode part 122 may have a serpentine structure radially formed to form a spider web-like shape. That is, it may be formed in a structure in which a plurality of curved or straight patterns are interconnected, but the shape of the electrode part 122 is not limited to the illustrated shape.

In addition, the electrode parts 122 spaced apart from each other in the longitudinal direction may be connected by the connection part 124 . As illustrated, the connection part 124 may be formed to be connected to both sides of the plurality of electrode parts 122 . A wiring may be formed to electrically connect between the electrode part 122b, which is the lowermost ground electrode, and each of the remaining electrode parts 122a through the connection part 124 . At this time, it is preferable that the connection part 124 is also formed in a flexible and stretchable structure. Since the connection part 124 has a long shape in the longitudinal direction, as shown in the figure, a predetermined pattern (eg, a sine wave, a triangular wave, a square wave, etc.) is formed in a repeated shape and can be easily bent. structure can be formed.

The patch layer 110 fixes the sensing layer 150 on the inner surface and enables the water level sensing device 100 to be detachably attached to the outer surface of the IV pack 200 .

The patch layer 110 may be formed of two layers, and the first patch layer is formed of a stretchable polymer film layer and is formed on the outermost side of the water level sensing device. The second patch layer is formed on the first patch layer, and is a stretchable polymer film layer that has elasticity and adhesiveness to fix the sensing layer 150 on the second patch layer.

In this case, the first patch layer may be formed of a polymer material having elasticity, such as PDMS, ECOFLEX, or the like. The second patch layer may be manufactured by mixing uncured PDMS with PEIE (Polyethylenimine 80% ethoxylated solution) and curing it.

The patch layer 110 is manufactured to surround the IV pack 200 using a stretchable material such as elastic fiber or silicone, such as an arm toe, and is built into the device of a type that can be inserted from the top to the bottom of the IV pack 200. , it can be attached to the outer surface of the IV pack 300 by the restoring force of the device when the IV pack 200 having a larger or different shape than the size of the device is inserted by the restoring force of the elastic material. The water level sensing device 100 can be more firmly attached to the IV pack 300 by means of a mechanism inserted into the IV pack 300, but only the patch layer 110 without the above mechanism is applied to the outer surface of the IV pack 300. can be attached.

Since the patch layer 110 has elasticity, it can be attached to the outer surface of the IV pack 200 by elasticity acting on the curved surface. In addition, a plurality of micro-sized holes 112 penetrating through the patch layer 110 may be formed at predetermined intervals. When the water level sensing device 100 is attached to the hole 112 by elasticity, the adhesive force can be further strengthened.

A manufacturing process of the above-described water level sensing device 100 will be described with reference to FIG. 4 .

First, a metalized polymer film 120 on which a metal layer is formed is prepared (FIG. 4(a)). This may be manufactured by depositing a metal such as gold (Au) or aluminum (Al) on a film-shaped substrate 128 made of PET or PI. Next, the polymer film 120 on which the metal layer is formed is fixed to a UV laser device through vacuum adsorption, and the pattern shape of the electrode part 122 and the connection part 124 is linearly transferred to the metal layer 125 using a laser. (Fig. 4 (b)). Next, the electrode part 122 is exposed to the outside, and a PET film 130 having a square hole in the center covering the connection part 124 is attached to the upper part of the metal layer 125 (FIG. 4(c)). Next, by using a UV laser, patterning is performed on the entire PET film 130 and the polymer film 120 on which the metal layer is formed (FIG. 4(d)), and the patterned sensing layer 150 is separated. Accordingly (FIG. 4(e), (f)), the sensing layer 150 may be finally manufactured.

The patch layer 110 prepares a patch layer film formed of a first patch layer and a second patch layer of different materials, and forms a plurality of holes 112 penetrating the patch layer 110 with _{a CO 2 laser (FIG. 4).} (f)) of (f)).

Finally, the sensing layer 150 is transferred to the adhesive second patch layer to fix the sensing layer 150 to the patch layer 110 (FIG. 4(h)).

4 (i) is a view in which each layer of the water level sensing device 100 manufactured as described above is separated, a patch layer 110 from above, and a polymer film 120 having a metal layer prepared in FIG. 4 (a) formed thereon. ) of the polymer substrate 128 and the metal layer 125 , and the PET film 130 covering the upper part of the metal layer 125 so that the electrode part 122 is exposed in FIG. 4C are sequentially formed.

In addition, the infusion pack level sensing device 100 according to the present invention may further include a communication unit (not shown). The communication unit may transmit the sensed water level information to the external server unit 300 using a wireless communication means such as BLE, WiFi, or ZigBee. The server unit 300 may be a computer or a personal mobile phone, and may receive information on a value sensed through a dedicated program or a dedicated app and display the information to the user.

Hereinafter, with reference to FIGS. 5 to 8, an IV pack casing device using the detachable IV pack water level sensing device 100 will be described.

5 is a view showing the inside of the infusion pack casing device according to an embodiment of the present invention, Figures 6 and 7 are an infusion pack in which the detachable water level sensing device according to the present invention is attached to the infusion pack casing device of FIG. 5 Showing the phosphorus housed state, Figure 8 is a perspective view showing the outside of the infusion pack casing device of Figure 5.

The infusion pack 200 may be stored and used in a case 410 that accommodates the infusion pack 200 therein, as shown in FIG. 5 . It is preferable that the case 410 has an internal space to accommodate the infusion pack 200 therein, and has a structure in which the upper surface or the side can be opened and closed so that the IV pack 200 can be replaced and mounted.

When the above-described detachable infusion pack water level sensing device 100 according to the present invention is attached to the infusion pack 200 to measure the level of the infusion solution, the water level sensing device 100 is connected to the infusion pack 200 by the case 410. ), so that the measurement accuracy can be further improved. However, the water level sensing device 100 attached to the infusion pack is not necessarily used in a state in close contact with the case 410 .

At this time, the infusion pack shape maintaining unit 415 may be formed inside the case 410 . In general, the infusion pack 200 is formed of a material that is easily deformed in appearance. However, if the outer shape changes, even if the water level of the same height is measured, the actual amount of the infusion pack 200 may be different. When measuring the amount of sap, the reliability of the measured value may decrease. That is, even when the same water level is measured, the amount of the infusion solution contained in the infusion pack 200 may be different depending on the shape of the infusion pack 200 . In addition, if the amount of the infusion solution inside the infusion pack 200 is gradually reduced due to use, the volume of the infusion pack 200 may decrease, so that the adhesion between the infusion pack 200 and the water level sensing device 100 may decrease. Therefore, the accuracy of the sensed value may be reduced. Therefore, the infusion pack shape maintaining unit 415 maintains the shape of the infusion pack 200 even if the amount of the infusion inside the infusion pack 200 is reduced by use, thereby increasing the reliability of the measurement value, and the infusion pack 200. The degree of adhesion between the water level sensing device 100 and the water level sensing device 100 is maintained to maintain the accuracy of the measurement value.

The IV pack shape maintaining unit 415 may be formed to protrude from the inner wall of the case 410 to support the outside of the IV pack 200 . Furthermore, it is preferable that the IV pack shape maintaining unit 415 elastically supports the outside of the IV pack 200 . That is, the IV pack shape maintaining unit 415 is formed to protrude from the inner wall of the case 410, and is formed to move elastically.

As shown in FIG. 6 , when the infusion pack 200 is put into the first case 410 before use, the infusion pack shape maintaining unit 415 by the force of pushing the infusion pack 200 into the case 410 . ) may be retracted toward the inner wall of the case 410 .

When the infusion is used in such a state, the amount of the infusion in the infusion pack 200 is gradually reduced, and the shape of the infusion pack 200 is changed. At this time, as the pressure inside the infusion pack 200 decreases, the infusion pack shape maintaining unit 415 that presses the infusion pack 200 moves forward toward the infusion pack 200, and the shape of the infusion pack 200 changes. It is to be maintained similarly to the shape of the infusion pack 200 before the first use. At this time, by allowing the infusion pack 200 to maintain a taut state by pressurization by the infusion pack shape maintaining unit, the adhesion between the water level sensing device 100 and the infusion pack 200 attached to the outer surface can be maintained.

The IV pack shape maintaining unit 415 may be formed to protrude in a plurality of vertical directions on the inner wall of the case 410 as shown, and is formed symmetrically on the inner wall of the case 410 to change the shape of the IV pack 200 . It is desirable to maintain symmetry.

As shown in FIG. 8 , a display unit 420 for visually displaying the water level of the infusion pack 200 in the case 410 may be formed on the outer wall of the case 410 . The display unit 420 may directly display the measured water level value as a numerical value, or may intuitively display the water level by varying the number of lights depending on the water level state by a plurality of lighting lamps arranged in a line.

The scope of the present invention is not limited to the above-described embodiments, but may be implemented in various types of embodiments within the scope of the appended claims. Without departing from the gist of the present invention claimed in the claims, it is considered to be within the scope of the claims of the present invention to various extents that can be modified by any person skilled in the art to which the invention pertains.

100: water level sensing device
110: patch layer
112: hall
120: a polymer film formed with a metal layer
122: electrode part
124: connection
125: sensor, metal layer
128: substrate
130: PET film
150: sensing layer
200: sap pack
300: server unit
410: case
415: sap pack shape maintenance part
420: display unit

Claims (18)

a patch layer that is detachable from the outer surface of the infusion pack; and
It is fixed on the patch layer and includes a sensing layer including a sensor for detecting the level of the infusion in the infusion pack,
A detachable infusion pack level sensing device in which a plurality of holes penetrating through the patch layer are formed in the patch layer so that it can be stretched and detached from the outer surface of the infusion pack. The method of claim 1,
In the sensor, a plurality of electrode parts are disposed to be spaced apart in the longitudinal direction, and between the ground electrode part of any one of the plurality of electrode parts and the other electrode part, based on a change in the capacitance value according to a change in the water level inside the IV pack, A detachable infusion pack level sensing device that detects the level of infusion in the infusion pack. 3. The method of claim 2,
The sensor further includes a connection part for connecting the plurality of electrode parts in a longitudinal direction, and a detachable infusion pack level sensing device for electrically connecting the ground electrode part and the remaining electrode parts respectively through the connection part. 3. The method of claim 2,
The electrode part is patterned in a flexible and stretchable structure, and is a detachable infusion pack water level sensing device. 5. The method of claim 4,
The electrode portion is a serpentine (serpentine) structure is formed in a radially detachable infusion pack water level sensing device. 4. The method of claim 3,
The connection part is a detachable infusion pack water level sensing device that is formed in a flexible and stretchable structure. 7. The method of claim 6,
The connection part is a detachable infusion pack water level sensing device that is formed in the form of repeating patterns in the longitudinal direction. The method of claim 1,
The patch layer may include a first patch layer having elasticity; and
A detachable infusion pack level sensing device that is formed on the first patch layer and includes a second patch layer having elasticity and adhesiveness to fix the sensing layer. 9. The method of claim 8,
The first patch layer is a detachable infusion pack water level sensing device formed of any one material of PDMS and ECOFLEX. 9. The method of claim 8,
The second patch layer is a detachable sap pack water level sensing device formed by mixing and curing PEIE with uncured PDMS. delete The method of claim 1,
A detachable infusion pack level sensing device further comprising a communication unit for transmitting information sensed by wireless communication to the outside. An infusion pack casing device comprising a case for accommodating the infusion pack to which the infusion pack water level sensing device of any one of claims 1 to 10 and 12 is attached therein. 14. The method of claim 13,
The infusion pack casing device further comprising an infusion pack shape maintaining part formed inside the case and supporting the outside of the infusion pack to correct an external change of the infusion pack according to a decrease in the infusion pack in the infusion pack. 15. The method of claim 14,
The IV pack shape maintaining unit is formed to protrude from the inner wall of the case to elastically support the IV pack casing device. 16. The method of claim 15,
The IV pack casing device in which a plurality of infusion pack shape maintaining parts protrude in the vertical direction of the inner wall of the case. 16. The method of claim 15,
The IV pack casing device is formed symmetrically on the inner wall of the case infusion pack shape maintaining unit. 14. The method of claim 13,
Infusion pack casing device in which a display unit for visually displaying the water level sensed by the infusion pack water level sensing device is formed in the case.

Images