KR102420844B1 - Sensing device for transcutaneous oxygen pressure monitor - Google Patents

Abstract

It relates to a sensing device for a transcutaneous oxygen partial pressure measurement device, comprising: a patch body attached to or surrounding a body part to measure oxygen pressure; and a sensor connected to the transcutaneous oxygen partial pressure measurement device and the patch body Prepare a configuration including a sensor connection part, attach it to the body part to measure oxygen partial pressure, or install it to surround the body part, and expand the expandable member to bring the patch body into close contact with the body part, so that there is no flesh or attachment to the attachment part The patch body can be easily installed even in a small area, thereby providing accurate measurement values.

Description

Sensing device for transcutaneous oxygen partial pressure measuring device {SENSING DEVICE FOR TRANSCUTANEOUS OXYGEN PRESSURE MONITOR}

The present invention relates to a sensing device for a transcutaneous oxygen partial pressure measuring device, and more particularly, to a sensing device for an oxygen partial pressure measuring device installed on a body part to be measured and measuring oxygen tension through the skin.

Oxygen therapy is a treatment for chronic respiratory diseases such as chronic obstructive pulmonary disease, sequelae of pulmonary tuberculosis, chronic respiratory failure including pulmonary fibrosis, heart failure, and hypoxemia accompanying various diseases. Such oxygen therapy aims to improve and prevent hypoxemia by increasing the arterial oxygen partial pressure (PaO2) of a patient by administering a high concentration of oxygen gas.

In the transcutaneous oxygen partial pressure measurement method, after maintaining the skin at a constant temperature, the capillaries under the skin are expanded, and the oxygen in the blood at that site diffuses through the subcutaneous tissue and skin using a sensor on the skin surface. The arterial oxygen partial pressure is inferred from the obtained value.

Recently, a transcutaneous oxygen partial pressure measuring device capable of non-invasively measuring the transcutaneous oxygen tension has been developed.

Such a transcutaneous oxygen partial pressure measurement device provides practical information to patients with wounds or vascular diseases to make the right clinical decisions.

That is, the transdermal oxygen partial pressure measuring device can diagnose the micro blood flow condition around the affected part by attaching a plurality of sensors to the patient's skin and measuring the oxygen partial pressure non-invasively.

For example, the percutaneous oxygen partial pressure measurement device is applied to chronic wounds such as burns and skin ulcers, wounds, ischemic vascular disease, and diabetic foot disease patients, and is used to evaluate wound healing, vascular disease examination, vasodilation and remodeling evaluation, It is used for predicting the cutting range and monitoring hyperbaric oxygen treatment.

The following Patent Documents 1 and 2 disclose an oxygen therapy system and an oxygen supply device configuration.

Meanwhile, the sensing attachment pad applied to the currently commercialized transdermal oxygen partial pressure measuring device is connected to the measuring device while being attached to the cross-section of the skin.

Therefore, the transdermal oxygen partial pressure measuring device according to the prior art has problems in that the cross-section is not flat because there is no flesh at the attachment site, or if the area of the attachment site is insufficient, the transdermal oxygen partial pressure value cannot be detected or the measured value is inaccurate.

As described above, in the percutaneous oxygen partial pressure measuring apparatus according to the prior art, in the process of installing the sensing attachment pad on a body part, the installation site is not flat, or it is impossible to test in a region where it is difficult to attach the patch because the attachment area is narrow, such as a finger or toe Alternatively, as the accuracy of the measurement value is lowered, there is a problem in that the reliability of the product is lowered.

Korean Patent Publication No. 10-2019-0130136 (published on November 21, 2019) Korean Patent Publication No. 10-2019-0130596 (published on November 22, 2019)

SUMMARY OF THE INVENTION An object of the present invention is to solve the above problems, and it is a transcutaneous oxygen partial pressure measuring device that can accurately measure oxygen partial pressure by installing it even in an area where the cross-section of the body part to be installed is not flat or the attachment area is not sufficient. To provide a detection device for

Another object of the present invention is to provide a sensing device for a transcutaneous oxygen partial pressure measuring device capable of accurately measuring oxygen partial pressure by forming a space in which air does not flow and pressure does not act in a sensing region.

In order to achieve the above object, a sensing device for a transcutaneous oxygen partial pressure measurement device according to the present invention includes a patch body attached to or surrounding a body part to measure oxygen pressure, and a transdermal oxygen partial pressure measurement It characterized in that it comprises a sensor connected to the device and a sensor connecting portion for connecting the patch body.

As described above, according to the sensing device for a percutaneous oxygen partial pressure measurement device according to the present invention, the patch body is attached to the body part to be measured or installed to surround the body part, and the expandable member is expanded to attach the patch body to the body. The effect of being able to adhere to a site|part is acquired.

Accordingly, according to the present invention, the patch body can be easily installed even in a region where there is no flesh or a small attachment area at the attachment site, and through this, an effect of providing an accurate measurement value is obtained.

For this reason, according to the present invention, as it is possible to accurately measure oxygen pressure by conveniently installing it at the site where oxygen pressure needs to be measured, which is the most common wound, such as a diabetic foot, occurring in a diabetic patient, the effect of maximizing the utilization of the product. is obtained

1 is a plan view of a sensing device for a transcutaneous oxygen partial pressure measuring device according to a preferred embodiment of the present invention;
2 is a bottom view of the sensing device shown in FIG. 1;
3 is a cross-sectional view taken along line A-A' shown in FIG. 1;
4 is a view showing a state in which the sensing device shown in FIG. 1 is installed to cover a body part;
5 is a view showing a state in which a sensor is coupled to a sensor connection part;

Hereinafter, a sensing device for a transcutaneous oxygen partial pressure measuring device according to a preferred embodiment of the present invention will be described in detail with reference to the accompanying drawings.

1 is a plan view of a sensing device for a transcutaneous oxygen partial pressure measurement device according to a preferred embodiment of the present invention, and FIG. 2 is a bottom view of the sensing device shown in FIG. 1 SD. And FIG. 3 is a cross-sectional view taken along line A-A' shown in FIG. 1 , and FIG. 4 is a view showing a state in which the sensing device shown in FIG. 1 is installed to surround a body part.

Hereinafter, terms indicating directions such as 'left', 'right', 'front', 'rear', 'up' and 'downward' are defined as indicating each direction based on the state shown in each figure. do.

As shown in FIGS. 1 to 4, the sensing device (hereinafter abbreviated as 'sensing device') 10 for a transcutaneous oxygen partial pressure measuring device according to a preferred embodiment of the present invention is provided as an attachment patch having a substantially rectangular plate shape. When the body part to be mounted is not flat or it is difficult to attach the patch due to a narrow attachment area such as a finger or toe, it is configured to form a measurement space 11 inside the body part.

That is, the sensing device 10 includes a patch body 20 formed in a substantially square plate shape, and the central portion 21 of the patch body 20 is attached to a body part, and the It may be connected to the sensor 12 .

And the patch body 20 is formed to extend from both ends of the central portion 21 to both sides, and may further include a pair of bending portions 22 surrounding the body part.

Therefore, as shown in FIG. 4 , the patch body 20 may be installed by wrapping a part where the body part to be attached is not flat or the attachment area is narrow, such as a finger or toe, which is difficult to attach a patch.

Accordingly, a corresponding body part is disposed inside the patch body 20 to provide a measurement space 11 for measuring oxygen partial pressure.

A fixing member 23 such as a velcro fastener or an adhesive tape may be installed in each of the pair of bending portions 22 .

For example, the fixing member 23 may be provided with female and male Velcro respectively installed at both ends of a pair of bending parts 22, as shown in FIGS. 1 and 2 .

On the other hand, at the portion where the central portion 21 and the pair of bending portions 22 of the patch body 20 are connected, a pair of bending portions 22, respectively, are easily folded downward from both ends of the central portion 21 or to be bent. A fold line may be formed.

A sensor connection part 30 may be provided in the central part 21 of the patch body 20 .

The sensor connection part 30 is a part where the sensor 12 connected to the transcutaneous oxygen partial pressure measuring device (not shown) in a wired or wireless manner through a cable is connected.

5 is a view showing a state in which the sensor is coupled to the sensor connection part.

As shown in FIGS. 1 to 5, the sensor connection part 30 penetrates the central part 21 of the patch body 20 in the vertical direction so that the sensor 12 is coupled in a substantially conical or cylindrical shape. A ball 31 may be formed.

The coupling hole 31 transmits the intermediate medium in the liquid state to the skin of the body part to be measured so that the oxygen partial pressure can be measured while the sensor 21 is coupled to the sensor connection part 30, and the intermediate medium It may provide a space to be filled with material.

A coupling member 32 coupled to the sensor 12 may be provided on the upper surface of the sensor connection unit 30 in various ways, such as an interference fitting method or a fastening method.

That is, the coupling member 32 and the sensor 12 are firmly coupled in various ways, such as a coupling method using magnetism, in addition to the above-described interference fitting method or the fastening method, and may be separated when the oxygen partial pressure measurement is completed.

To this end, the sensor connection unit 30 may be further provided with a separation preventing member 33 that prevents the sensor 12 coupled to the coupling member 32 from being separated by vibration or shock transmitted from the outside.

Separation prevention member 33 may be provided on one side of the coupling member 32 to be rotatable or slidable. So, the separation prevention member 33 fixes the sensor 12 coupled to the coupling member 32 while measuring the oxygen partial pressure, and when the measurement is completed, rotates or slides in the opposite direction to separate the sensor 12. have.

1 to 4 again, the lower surface of the patch body 20 may be provided with an expandable member 40, the volume of which is expanded by injecting a liquid such as air or water, particularly hot water.

The liquid is not limited to water or hot water, and various fluids such as oil may be applied.

When the patch body 20 is installed to surround a body part, a gap may occur between the patch body 20 and the body part, that is, in the measurement space 11 .

So, in this embodiment, the expandable member 40 is installed on the lower surface of the patch body 20 , and air or liquid is injected to expand the expandable member 40 to increase the volume of the expandable member 40 .

To this end, the expandable member 40 may be manufactured using a material having elasticity to allow volume expansion, such as rubber, vinyl, or silicone. Therefore, the expandable member 40 expands to increase in volume while being elastically deformed when air or liquid is injected, and when the air or liquid injected therein is discharged to the outside, it can return to its original state.

The expandable member 40 is manufactured to have the same area or a slightly smaller area as the lower surface of the patch body 40 in order to maximize the contact area with the body part in the expanded state, and one side of the expandable member 40 has air An injection hole 41 into which the liquid is injected may be provided.

In addition, a through hole may be formed in the center of the expandable member 40 at a position corresponding to the coupling hole 31 of the sensor connection part 30 .

At the same time, the expandable member 40 has a color change when a leak occurs in which the intermediate medium injected through the coupling hole 31 of the sensor connection part 30 leaks out of the coupling hole 31 and the through hole. It can be made of any available material.

That is, when measuring the oxygen pressure, it is preferable that the expandable member 40 maintains the expanded state while enclosing the body part, but expands only to the extent that pressure is not applied to the body part for accurate measurement.

Therefore, when air or liquid is injected through the inlet 41 , the user can easily recognize whether the intermediate material is leaked by checking the expanded state and discoloration of the expandable member 40 .

Accordingly, when the intermediate medium leaks, the user can adjust the volume of the expandable member 40 by discharging the air or liquid injected into the expandable member 40 to the outside again so that the pressure does not act on the measurement site. .

As described above, according to the present invention, the patch body can be attached to a body part to be measured or installed to surround the body part, and the patch body can be brought into close contact with the body part by inflating the expandable member.

Accordingly, according to the present invention, it is possible to easily install the patch body even in a portion where there is no flesh or a small attachment area at the attachment site, and through this, an accurate measurement value can be provided.

Next, the coupling relationship and operation method of the sensing device for a transcutaneous oxygen partial pressure measurement device according to a preferred embodiment of the present invention will be described in detail.

First, the user installs the patch body 20 on a body part to be measured. At this time, the user uses a pair of bending parts 22 provided on both sides of the patch body 20 to wrap the body part to be attached (hereinafter referred to as a 'measurement part'), so that the patch body has no flesh or a small attachment area. (20) can be easily installed.

When the installation of the patch body 20 is completed, it is firmly fixed to the measurement site using a pair of fixing members 23 provided at both ends of the patch body 20 .

At this time, the user inputs the intermediate material through the coupling hole 31 and the through hole formed in the patch body 20 and the expandable member 40 .

Then, the user inflates the expandable member 40 by injecting air or liquid into the expandable member 40 installed on the lower surface of the patch body 20 .

At this time, the user may check whether the intermediate material is leaked by checking the expanded state and the discolored state of the expandable member 40 . Accordingly, when the intermediate material leaks, the user adjusts the volume of the expandable member 40 by discharging a portion of the air or liquid injected into the expandable member 40 to the outside, thereby controlling the pressure to not act on the measurement site. can

When the sensing device 10 is installed at the measurement site through this process, the user couples the sensor 12 connected to the percutaneous oxygen partial pressure measurement device to the sensor connection unit 30 .

Then, the user can measure the oxygen partial pressure, that is, the oxygen tension, acting on the measurement site using the sensor 12 installed in the sensing device 10 .

Through the process as described above, the present invention can attach the oxygen partial pressure to the body part to be measured, or install it to surround the body part, and expand the expandable member to bring the patch body into close contact with the body part.

Accordingly, according to the present invention, it is possible to easily install the patch body even in a portion where there is no flesh or a small attachment area at the attachment site, and through this, an accurate measurement value can be provided.

For this reason, the present invention can maximize the utilization of the product as it is possible to accurately measure the oxygen pressure by simply installing it at the site where the oxygen pressure of the most common wound such as a diabetic foot occurring in a diabetic patient needs to be measured.

Although the invention made by the present inventors has been described in detail according to the above embodiments, the present invention is not limited to the above embodiments, and various modifications can be made without departing from the gist of the present invention.

The present invention is applied to a sensing device technology for a transcutaneous oxygen partial pressure measuring device that measures oxygen pressure by installing it at a site where oxygen pressure is to be measured.

10: Sensing device for transcutaneous oxygen partial pressure measuring device
11: measuring space 12: sensor
20: patch body
21: central part 22: bending part
23: fixing member 24:
30: sensor connection
31: coupling hole 32: coupling member
33: separation prevention member
40: expandable member
41: inlet

Claims (5)

A patch body that is attached to a body part to measure oxygen pressure or installed to surround the body part;
A sensor connection unit connecting the sensor connected to the transcutaneous oxygen partial pressure measuring device and the patch body;
It is installed on the lower surface of the patch body, and the volume is expanded by receiving air or liquid injection and includes an expandable member for closely contacting the patch body and the measurement site,
The expandable member is manufactured using a material having elasticity, and expands to increase in volume while being elastically deformed when air or liquid is injected, and returns to its original state when the air or liquid injected inside is discharged to the outside,
In the process of injecting air or liquid into the expandable member, when the intermediate medium injected through the coupling hole formed in the patch body leaks, the color of the material is changed to recognize the leakage of the intermediate material. A sensing device for a transcutaneous oxygen partial pressure measuring device. According to claim 1,
The central part of the patch body is attached to a body part, and the sensor connection part is provided,
On both sides of the central part, a pair of bending parts installed to surround the measurement part are provided,
A device for transcutaneous oxygen partial pressure measurement, characterized in that the pair of bending parts is provided with a fixing member for fixing the pair of bending parts wrapped around the measurement site. 3. The method of claim 2,
A coupling hole is formed in the sensor connection part through the central part of the patch body in the vertical direction so that the sensor is coupled,
The sensor connection portion includes a coupling member coupled to the sensor and
It includes a separation preventing member for preventing separation by fixing the sensor coupled to the coupling member,
The coupling hole delivers a liquid intermediate medium to the skin of the measurement site, and provides a space in which the intermediate medium is filled. delete delete

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