CN217090726U

CN217090726U - Sealing structure of body surface attachment unit

Info

Publication number: CN217090726U
Application number: CN202123014608.4U
Authority: CN
Inventors: 钱成
Original assignee: Diascience Medical Co Ltd
Current assignee: Diascience Medical Co Ltd
Priority date: 2021-12-03
Filing date: 2021-12-03
Publication date: 2022-08-02
Anticipated expiration: 2031-12-03

Abstract

The utility model provides a seal structure of unit is attached to body surface, unit is attached to the body surface includes sensor base and transmitter, last power supply module and the electrode subassembly of configuring of sensor base, power supply module include the power and with the output electric connection's of power supply power terminal, the electrode subassembly include the sensor electrode, attach the electrode holder on the sensor electrode and configure on the electrode holder with sensor electrode electric connection's electrode terminal, power supply module is last to dispose first sealing member around power terminal, dispose second sealing member around electrode terminal on the electrode holder, first sealing member and second sealing member are the sealing rubber of loudspeaker form, sealing rubber is configured to be squeezed by the transmitter and opens when the transmitter is installed on the sensor base. The utility model discloses can further improve waterproof performance.

Description

Sealing structure of body surface attachment unit

Technical Field

The utility model relates to the technical field of medical equipment, concretely relates to seal structure of unit is attached to body surface that lasts blood glucose monitoring system.

Background

Some physiological diseases, which have long disease course and prolonged disease duration, need to monitor some physiological parameters of the host in real time to better track the treatment. Such as diabetes, require real-time monitoring of the host blood glucose. Accurate blood sugar self-monitoring is a key for realizing good blood sugar control, is beneficial to evaluating the degree of glucose metabolism disorder of a diabetic patient, formulating a blood sugar reduction scheme, and simultaneously reflecting the blood sugar reduction treatment effect and guiding the adjustment of the treatment scheme.

Currently, most commercially available instruments refer to blood glucose meters, and patients need to collect finger peripheral blood by themselves to measure the blood glucose level at that moment. However, this method has the following drawbacks: firstly, the change of the blood sugar level between two measurements cannot be known, and the peak value and the valley value of the blood sugar can be missed by a patient, so that complications are caused, and irreversible damage is caused to the patient; secondly, the finger tip puncture blood sampling is carried out for a plurality of times every day, which causes great pain for the diabetic. In order to overcome the above-mentioned drawbacks, it is necessary to provide a method for continuously monitoring blood sugar of a patient, so that the patient can conveniently know the blood sugar status of the patient in real time, and take measures in time to effectively control the state of an illness and prevent complications, thereby achieving a high quality of life.

Aiming at the requirements, technical personnel develop a monitoring technology which can be implanted into subcutaneous tissues to continuously monitor subcutaneous blood sugar, the technology is characterized in that a sensor electrode is inserted into the subcutaneous tissues, the sensor electrode generates oxidation reaction between interstitial fluid of a patient and glucose in a body, an electric signal is formed during the reaction, the electric signal is converted into blood sugar reading through a transmitter, the blood sugar reading is transmitted to a wireless receiver every 1-5 minutes, corresponding blood sugar data are displayed on the wireless receiver, and a map is formed for the patient and a doctor to refer.

For example, chinese utility model patent CN113499126A discloses an implanting device and implanting method, in which a sealing ring is disposed around a power supply terminal and an electrode terminal of a sensor base, and when a transmitter is mounted on the sensor base, a sealing cavity containing the power supply terminal and the electrode terminal is formed on the lower surface of the transmitter by abutting the sealing ring. In the actual use process, the sealing structure still has the condition of water leakage, and the monitoring accuracy is influenced.

Disclosure of Invention

The utility model aims at providing a seal structure of unit is attached to body surface can further improve waterproof performance.

In order to achieve the purpose of the invention, the technical scheme adopted by the utility model is as follows: a sealing structure of a body surface attaching unit comprises a sensor base and a transmitter, wherein a power supply assembly and an electrode assembly are arranged on the sensor base, the power supply assembly comprises a power supply and a power supply terminal electrically connected with an output end of the power supply, the electrode assembly comprises a sensor electrode, an electrode base attached to the sensor electrode and an electrode terminal arranged on the electrode base and electrically connected with the sensor electrode, a first sealing part is arranged on the power supply assembly around the power supply terminal, a second sealing part is arranged on the electrode base around the electrode terminal, the first sealing part and the second sealing part are horn-shaped sealing rubber, and the sealing rubber is configured to be squeezed by the transmitter to be opened when the transmitter is installed on the sensor base.

In the above technical scheme, the power supply is a button cell.

In the technical scheme, the sensor base is connected with the transmitter in a buckling mode.

In the above technical solution, the sensor base is provided with a hole, and the internal part of the sensor electrode extends out of the sensor base through the hole.

In the above technical solution, the power supply assembly further includes a power supply mounting groove and a power supply cover plate, and the power supply is encapsulated in the power supply mounting groove by the power supply cover plate.

In the above technical solution, the power cover plate is configured with two power supply terminals, one of the power supply terminals is electrically connected to a positive electrode of a power supply, and the other power supply terminal is electrically connected to a negative electrode of the power supply.

In the above technical solution, the sensor electrode includes a working electrode and a reference electrode, and the electrode holder is configured with two electrode terminals, wherein one of the electrode terminals is electrically connected to the working electrode of the sensor electrode, and the other electrode terminal is electrically connected to the reference electrode of the sensor electrode.

In the above technical solution, the electrode holder includes an upper housing and a lower housing, the external portion of the sensor electrode is clamped and fixed by the upper housing and the lower housing, and the electrode terminal is configured on the upper housing and partially extends into a gap between the upper housing and the lower housing.

In the above technical solution, the outer part of the sensor electrode is inserted into the electrode terminal.

In the above technical solution, the electrode terminal is made of conductive rubber.

Because of the application of the technical scheme, compared with the prior art, the utility model has the following advantages:

the sealing component is arranged into the horn shape, when the emitter is arranged on the sensor base, the horn-shaped sealing component is abutted against the lower surface of the emitter and is extruded by the lower surface of the emitter, so that the sealing component and the lower surface of the emitter are combined more favorably to improve the sealing property; when water enters the sensor base, the water can provide a force for the outer side face of the sealing component to press the lower surface of the emitter, and the sealing performance is further improved.

Drawings

Fig. 1 is a schematic diagram of a continuous blood glucose monitoring system according to an embodiment of the present invention.

Fig. 2 is a body surface attachment unit application diagram of an embodiment of the present invention.

Fig. 3 is a schematic view of the assembly of the sensor and the transmitter according to the embodiment of the present invention.

Fig. 4 is a cross-sectional view of a sensor base according to an embodiment of the present invention.

Fig. 5 is a schematic cross-sectional view of a sensor electrode according to an embodiment of the present invention.

Fig. 6 is a sectional view of an electrode holder according to an embodiment of the present invention.

Fig. 7 is a cross-sectional view of the sealing rubber abutting against the transmitter according to the embodiment of the present invention.

Wherein: 100. a host; 200. a body surface attachment unit; 210. a sensor electrode; 211. an electrode holder; 212. an electrode terminal; 213. a second seal member; 214. a working electrode; 215. a reference electrode; 216. an upper housing; 217. a lower housing; 220. a sensor base; 221. a power source; 222. a power supply terminal; 223. a first seal member; 224. a power supply mounting groove; 225. a power supply cover plate; 230. an adhesive patch; 250. an aperture; 300. a receiver; 400. a transmitter; 500. an implanter.

Detailed Description

The following description and examples detail certain exemplary embodiments of the disclosed invention. Those skilled in the art will recognize that there are numerous variations and modifications of the present invention encompassed by its scope. Accordingly, the description of a certain exemplary embodiment should not be deemed to limit the scope of the present invention.

Continuous blood Glucose Monitoring (CGM) system

FIG. 1 is a schematic illustration of a continuous blood glucose monitoring system attached to a host 100. A continuous blood glucose monitoring system comprising a body surface attachment unit 200 is shown, which is secured to the skin of a host 100 by a disposable sensor mount (not shown). The system comprises a body surface attachment unit 200 and a transmitter 400 for transmitting blood glucose information monitored by the body surface attachment unit 200 to a receiver 300, the receiver 300 typically being a smart phone, a smart watch, a dedicated device and the like. In use, the sensor electrode 210 is partially positioned under the skin of the host 100, and the sensor electrode 210 is electrically connected to the transmitter 400. The emitter 400 is engaged with the sensor mount 220, and the sensor mount 220 is attached to the adhesive patch 230 and secured to the skin of the host 100 by the adhesive patch 230.

Referring to fig. 2, the body surface attachment unit 200 may be applied to the skin of the host 100 with an implanter 500, the implanter 500 being adapted to provide a convenient and safe implantation procedure. Such an implanter 500 may also be used to insert the sensor electrode 210 through the skin of the host 100. Once the sensor electrode 210 has been inserted, the implanter 500 is detached from the body surface attachment unit 200.

Referring to fig. 3 and 4, the present embodiment provides a sealing structure of a body surface attachment unit 200, the body surface attachment unit 200 includes a sensor base 220 and a transmitter 400, a power supply assembly and an electrode assembly are disposed on the sensor base 220, the power supply assembly includes a power supply 221 and a power supply terminal 222 electrically connected to an output terminal of the power supply 221, the electrode assembly includes a sensor electrode 210, an electrode holder 211 attached to the sensor electrode 210 and an electrode terminal 212 disposed on the electrode holder 211 and electrically connected to the sensor electrode 210, a first sealing member 223 is disposed on the power module around the power supply terminal 222, a second sealing member 213 is disposed on the electrode holder 211 around the electrode terminal 212, the first sealing member 223 and the second sealing member 213 are each a seal rubber in a horn shape, and the seal rubber is configured to be pressed and opened by the transmitter 400 when the transmitter 400 is mounted on the sensor base 220.

The power module and the electrode module are separately provided, and thus it is necessary to provide a sealed environment to the power supply terminal 222 and the electrode terminal 212, respectively. In other embodiments, when the power module and the electrode module are integrally provided, for example, the power supply terminal 222 and the electrode terminal 212 are provided on the same plane, only one sealing rubber is required to surround the power supply terminal 222 and the electrode terminal 212.

In one embodiment, the power source 221 is a button cell battery.

With continued reference to fig. 3, the sensor mount 220 is snap-fit to the transmitter 400.

The sensor electrode 210 includes an in-vivo portion, which means a portion that enters the subcutaneous space of the host and comes into contact with subcutaneous tissue fluid, and an in-vitro portion, which means a portion that is exposed to the outside of the skin of the host.

With continued reference to fig. 4, the sensor base 220 is provided with a hole 250, and the inner portion of the sensor electrode 210 extends out of the sensor base 220 through the hole 250.

With continued reference to FIG. 4, in one embodiment, the power supply assembly further includes a power supply mounting slot 224 and a power supply cover 225, and the power supply 221 is enclosed in the power supply mounting slot 224 by the power supply cover 225. Wherein, the power cover plate 225 can be welded to the power installation groove 224 by means of ultrasonic welding.

In one embodiment, the power cover 225 is configured with two power terminals 222, wherein one power terminal 222 is electrically connected to the positive pole of the power source 221, and the other power terminal 222 is electrically connected to the negative pole of the power source 221. Transmitter 400 is configured with a power input and power terminal 222 is in electrical contact with the power input to deliver power to transmitter 400 when transmitter 400 is mounted to sensor mount 220.

Referring to fig. 5, the sensor electrode 210 includes a working electrode 214 and a reference electrode 215. The electrode holder 211 is provided with two electrode terminals 212, wherein one electrode terminal 212 is electrically connected to a working electrode 214 of the sensor electrode 210, and the other electrode terminal 212 is electrically connected to a reference electrode 215 of the sensor electrode 210. The transmitter 400 is provided with a signal input terminal, and the electrode terminal 212 is in electrical contact with the signal input terminal when the transmitter 400 is mounted to the sensor mount 220 to transmit the blood glucose information monitored by the sensor electrode 210 to the transmitter 400.

Referring to fig. 6, the electrode holder 211 includes an upper housing 216 and a lower housing 217, the outer portion of the sensor electrode 210 is held and fixed by the upper housing 216 and the lower housing 217, and the electrode terminal 212 is disposed on the upper housing 216 and partially extends into a gap between the upper housing 216 and the lower housing 217. In one embodiment, an extracorporeal portion of the sensor electrode 210 is disposed through the electrode terminal 212.

The electrode terminal 212 is supported by a flexible material, which may be, for example, a conductive rubber.

Referring to fig. 7, in the present invention, by configuring the sealing member as the horn-shaped sealing rubber, when the transmitter 400 is mounted on the sensor base 220, the horn-shaped sealing member abuts against the lower surface of the transmitter 400 and is pressed by the lower surface of the transmitter 400, so that the sealing member is more favorably combined with the lower surface of the transmitter 400 to improve the sealing performance; when water enters the sensor mount 220, the water provides a force to the outer side of the sealing member against the lower surface of the emitter 400, further improving the sealing.

The foregoing description, in terms of such full, clear, concise and exact terms, provides the best mode contemplated for carrying out the invention, and the manner and process of making and using it, to enable any person skilled in the art to which it pertains, to make and use the same. The invention is, however, susceptible to modifications and alternative constructions from that described above which are fully equivalent. Therefore, the invention is not to be limited to the specific embodiments disclosed. Rather, the invention covers all modifications and alternative constructions coming within the spirit and scope of the invention as generally expressed by the following claims, which particularly point out and distinctly define the subject matter of the invention. While the invention has been illustrated and described in detail in the drawings and foregoing description, such illustration and description are to be considered illustrative and not restrictive.

Unless otherwise defined, all terms (including technical and scientific terms) are to be given their ordinary and customary meaning to those skilled in the art, and are not to be taken as limiting to a specific or special meaning unless expressly defined herein. It should be noted that the use of particular terminology when describing certain features or aspects of the disclosure should not be taken to imply that the terminology is being redefined herein to be restricted to including any specific characteristics or aspects of the disclosure with which that terminology is associated. The terms and phrases used in this application, and variations thereof, particularly in the appended claims, should be construed to be open ended and not limiting unless otherwise expressly stated. As an example of the foregoing, the term "including" shall mean "including but not limited to" or the like.

Furthermore, although the foregoing has been described in some detail by way of illustration and example for purposes of clarity and understanding, it will be apparent to those of ordinary skill in the art that certain changes and modifications may be practiced. Therefore, the description and examples should not be construed as limiting the scope of the invention to the particular embodiments and examples described herein, but rather to cover all modifications and alternatives falling within the true scope and spirit of the invention.

Claims

1. A sealing structure of a body surface attaching unit, the body surface attaching unit comprising a sensor base and a transmitter, a power supply module and an electrode module being provided on the sensor base, the power supply module comprising a power supply and a power supply terminal electrically connected to an output terminal of the power supply, the electrode module comprising a sensor electrode, an electrode holder attached to the sensor electrode, and an electrode terminal provided on the electrode holder and electrically connected to the sensor electrode, characterized in that: the power module is provided with a first sealing member around a power supply terminal, the electrode holder is provided with a second sealing member around an electrode terminal, the first sealing member and the second sealing member are both horn-shaped sealing rubbers, and the sealing rubbers are configured to be pressed by the emitter and opened when the emitter is mounted on the sensor base.

2. The sealing structure of a body surface attachment unit of claim 1, wherein: the power supply is a button cell.

3. The sealing structure of a body surface attachment unit of claim 1, wherein: the sensor base is connected with the emitter in a buckling mode.

4. The sealing structure of a body surface attachment unit of claim 1, wherein: the sensor base is provided with a hole, and the internal part of the sensor electrode extends out of the sensor base through the hole.

5. The sealing structure of a body surface attachment unit of claim 1, wherein: the power supply assembly further comprises a power supply mounting groove and a power supply cover plate, and the power supply is packaged in the power supply mounting groove by the power supply cover plate.

6. The sealing structure of a body surface attachment unit of claim 5, wherein: the power supply cover plate is provided with two power supply terminals, wherein one power supply terminal is electrically connected to the positive pole of a power supply, and the other power supply terminal is electrically connected to the negative pole of the power supply.

7. The sealing structure of a body surface attachment unit of claim 1, wherein: the sensor electrode comprises a working electrode and a reference electrode, two electrode terminals are arranged on the electrode holder, one of the electrode terminals is electrically connected to the working electrode of the sensor electrode, and the other electrode terminal is electrically connected to the reference electrode of the sensor electrode.

8. The sealing structure of a body surface attachment unit of claim 1, wherein: the electrode holder comprises an upper shell and a lower shell, the external part of the sensor electrode is clamped and fixed by the upper shell and the lower shell, and the electrode terminal is arranged on the upper shell and partially extends into a gap between the upper shell and the lower shell.

9. The sealing structure of a body surface attachment unit of claim 8, wherein: the outer portion of the sensor electrode is inserted into the electrode terminal.

10. The sealing structure of a body surface attachment unit of claim 1, wherein: the electrode terminal is conductive rubber.