CN220473434U - Film type biosensor and assembly thereof - Google Patents

Abstract

The utility model discloses a film type biosensor and its components, the film type biosensor includes: a first via, a first conductive layer, and a second conductive layer; the first conductive layer is arranged on one surface of the thin film type biosensor; the second conductive layer is arranged on the other surface of the thin film type biosensor; one or more first through holes are arranged on the film type biosensor. The utility model can simply and effectively guide the back conductive layer to the front, can greatly reduce the production difficulty of the flexible sensor and improve the production efficiency; in addition, the sensor can be conveniently and accurately positioned, the positioning difficulty of product assembly is reduced, and the assembly difficulty and the damage to the sensor are reduced.

Description

Film type biosensor and assembly thereof

Technical Field

The utility model belongs to the technical field of medical appliances, and particularly relates to a thin film type biosensor and a component thereof.

Background

CGM (continuous blood glucose monitoring product) is an electronic instrument for rapidly measuring blood glucose levels by measuring blood glucose data through a sensor. In order to lead the circuit structure on the front and back sides of the film sensor to the same surface so as to connect with an external circuit, it is common practice to print a plurality of small holes in the area of the back side conductive layer, print the conductive layer on the front side of the perforated area, connect with the back side conductive layer through the fine small holes by the conductive paste part, and transfer the back side conductive layer to the front side. For conductive materials with higher resistance, such as carbon-based conductive materials, the resistance is higher due to the limited amount of conductive materials in the micropores, and the strength of the measured signal is reduced. On the other hand, since the flexible sensor is fine in structure and small in size, very high assembly positioning accuracy is required, and at the same time, the difficulty of operation at the time of assembly is large, and damage to the sensor is easily caused.

Disclosure of Invention

In view of the above problems, the present utility model discloses a thin film type biosensor comprising: a first via, a first conductive layer, and a second conductive layer;

the first conductive layer is arranged on one surface of the thin film type biosensor;

the second conductive layer is arranged on the other surface of the thin film type biosensor;

one or more first through holes are arranged on the film type biosensor.

Still further, the first conductive layer includes a first contact, a second contact, a first electrode, and a second electrode;

the first contact is connected with the first electrode;

the second contact is connected with the second electrode.

Still further, the second conductive layer includes a third contact and a third electrode;

the third contact is connected with a third electrode.

The utility model also discloses a thin film type biological sensor component, which comprises: the sensor fixing frame, the conductive particles, the film type biosensor and the waterproof component;

the conductive particles are arranged in the sensor fixing frame;

the thin film type biosensor is provided with a first through hole;

one end of the conductive particle penetrates through the first through hole and is inserted into the waterproof component;

the conductive particles are abutted with one surface of the thin film type biosensor;

the other surface of the film type biosensor is abutted with the waterproof component;

the sensor fixing frame is connected with the waterproof component;

wherein the conductive particles are T-shaped or L-shaped.

Further, one or more first positioning grooves are formed in the sensor fixing frame;

and one side of the sensor fixing frame is provided with a U-shaped groove.

Still further, the conductive particles include a base, a protrusion, and a cylinder;

a protrusion and a cylinder are arranged on one surface of the base;

the base is arranged in the first positioning groove;

the bulge is hemispherical.

Still further, the waterproof assembly includes a second through hole, a conductive rubber, a third through hole, and a fourth through hole;

the third through hole and the fourth through hole are distributed in a shape like a Chinese character 'second through hole Kong Chengpin'.

Further, the protrusion of one conductive particle is abutted with the third contact of the thin film type biosensor, and one end of the cylinder is inserted into the second through hole;

one end of the conductive rubber is abutted with the first contact of the thin film type biosensor;

the other conductive rubber is arranged in the fourth through hole, and one end of the conductive rubber is abutted with the second contact of the thin film type biosensor.

Further, a protrusion of the conductive particle is abutted with the first contact of the thin film type biosensor, and the cylinder passes through a first through hole and is inserted into a third through hole;

the other protrusion of the conductive particle is abutted with the second contact of the thin film type biosensor, and the cylinder penetrates through the other first through hole and is inserted into the fourth through hole;

one conductive rubber is arranged in the second through hole, and one end of the conductive rubber is abutted with the third contact of the film type biosensor.

Furthermore, the waterproof component is made of silica gel or rubber.

Compared with the prior art, the utility model has the beneficial effects that: the structure can simply and effectively guide the back conductive layer to the front surface, and compared with the process of printing the back conductive layer to the front surface by punching in the conductive layer area of the flexible sensor in the traditional way, the structure can greatly reduce the production difficulty of the flexible sensor and improve the production efficiency; in addition, the sensor can be conveniently and accurately positioned, the positioning difficulty of product assembly is reduced, and the assembly difficulty and the damage to the sensor are reduced.

Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model. The objectives and other advantages of the utility model may be realized and attained by the structure particularly pointed out in the written description and drawings.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 shows an exploded view of a thin film biosensor assembly according to embodiment 1 of the present utility model;

FIG. 2 is a schematic front view showing a thin film type biosensor according to embodiment 1 of the present utility model;

fig. 3 shows a schematic back view of a thin film type biosensor according to embodiment 1 of the present utility model.

Reference numerals: 1. a sensor holder; 11. a first positioning groove; 12. a U-shaped groove;

2. conductive particles; 21. a base; 22. a protrusion; 23. a cylinder;

3. a thin film biosensor; 31. a first through hole; 32. a first contact; 33. a second contact; 34. a first electrode; 35. a second electrode; 36. a third contact; 37. a third electrode;

4. a waterproof assembly; 41. a second through hole; 42. a conductive rubber; 43. a third through hole; 44. and a fourth through hole.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

The utility model discloses a film type biosensor, comprising: a first via 31, a first conductive layer, and a second conductive layer;

the first conductive layer is arranged on one surface of the thin film type biosensor 3;

the second conductive layer is arranged on the other surface of the thin film type biosensor 3;

one or more first through holes 31 are provided on the thin film type biosensor 3.

The first conductive layer includes a first contact 32, a second contact 33, a first electrode 34, and a second electrode 35;

the first contact 32 is connected to a first electrode 34;

the second contact 33 is connected to a second electrode 35.

The second conductive layer includes a third contact 36 and a third electrode 37;

the third contact 36 is connected to a third electrode 37.

Example 1

Fig. 1 shows an exploded view of a thin film type biosensor assembly according to embodiment 1 of the present utility model. As shown in fig. 1, a thin film type biosensor assembly according to the present utility model includes: a sensor fixing frame 1, conductive particles 2, a film type biological sensor 3 and a waterproof component 4;

the conductive particles 2 are arranged in the sensor fixing frame 1;

the thin film type biosensor 3 is provided with a first through hole 31;

one end of the conductive particle 2 passes through the first through hole 31 and is inserted into the waterproof component 4;

the conductive particles 2 are abutted with one surface of the thin film type biosensor 3;

the other surface of the film type biosensor 3 is abutted with the waterproof component 4;

the sensor fixing frame 1 is clamped with the waterproof assembly 4. Wherein the conductive particles 2 are T-shaped or L-shaped.

The sensor fixing frame 1 is used for fixing the conductive particles 2;

conductive particles 2 for transferring the electric signal of the conductive layer on the back of the thin film biosensor 3 to the front;

a thin film biosensor 3 for measuring blood glucose data;

a waterproof member 4 for fixing the film-type biosensor 3 and waterproofing.

By punching the first through hole 31 on the film type biosensor 3 and using the conductive particle 2 through hole with low resistance, the electric signal of the back conductive layer is transferred to the front surface, the resistance between the front surface conductive layer and the back surface conductive layer is reduced, and the strength of the tested signal is improved.

In some embodiments, one or more first positioning grooves 11 are provided inside the sensor holder 1;

a U-shaped groove 12 is arranged on one side of the sensor fixing frame 1.

The first positioning groove 11 is used for quick positioning and mounting of the conductive particles 2;

the U-shaped groove 12 is used for positioning and mounting the film type biosensor 3.

One end of the film type biosensor 3 is provided with a strip-shaped positioning piece, the strip-shaped positioning piece is arranged in the U-shaped groove 12, and a cylinder of the conductive particle 2 penetrates through the first through hole 31 of the film type biosensor 3 to form two-point positioning, so that the film type biosensor 3 is ensured to be positioned accurately, and meanwhile, the assembly difficulty is reduced.

In some embodiments, the conductive pellet 2 includes a base 21, a protrusion 22, and a cylinder 23;

a protrusion 22 and a cylinder 23 are arranged on one surface of the base 21;

the base 21 is arranged in the first positioning groove 11;

the protrusions 22 are hemispherical.

A base 21 for mounting on the sensor holder 1 and carrying a boss 22 and cylinder 23 structure;

a protrusion 22 for ensuring stable contact with the conductive layer on the back surface of the thin film type biosensor 3;

and a cylinder 23 for conducting the back conductive layer to the front and connecting with an external circuit (PCB).

The conductive particles 2 with low resistance are contacted with the conductive layer on the back of the film type biosensor 3 in a large area, so that the electric signals on the back of the film type biosensor 3 are conveniently transferred to the front, and the electric signals are conveniently collected.

Fig. 2 shows a schematic front view of a thin film type biosensor according to embodiment 1 of the present utility model. As shown in fig. 2, in some embodiments, the first conductive layer includes a first contact 32, a second contact 33, a first electrode 34, and a second electrode 35;

the first contact 32, the second contact 33 and the first through hole 31 are distributed in a delta shape;

the first contact 32 is connected to a first electrode 34;

the second contact 33 is connected to a second electrode 35.

Wherein the first electrode 34 is any one of a reference electrode, a working electrode, or a counter electrode; the second electrode 35 is any one of a reference electrode, a working electrode, or a counter electrode.

Fig. 3 shows a schematic back view of a thin film type biosensor according to embodiment 1 of the present utility model. As shown in fig. 3, in some embodiments, the second conductive layer includes a third contact 36 and a third electrode 37;

the third contact 36 is disposed at the periphery of the first through hole 31;

the third contact 36 is connected to a third electrode 37;

the third contact 36 abuts the projection 22.

Wherein the third electrode 37 is any one of a reference electrode, a working electrode, or a counter electrode.

Illustratively, the first electrode 34 is a reference electrode; the second electrode 35 is a working electrode; the third electrode is a counter electrode.

In some embodiments, the waterproof assembly 4 includes a second through hole 41, a conductive rubber 42, a third through hole 43, and a fourth through hole 44;

the third through hole 43 and the fourth through hole 44 are distributed in a delta shape with the second through hole 41;

the protrusion 22 of one conductive particle 2 is abutted with the third contact 36 of the thin film type biosensor 3, and one end of the cylinder 23 is inserted into the second through hole 41;

one of the conductive rubbers 42 is disposed in the third through hole 43, and one end thereof abuts against the first contact 32;

the other conductive rubber 42 is disposed in the fourth through hole 44, and one end abuts against the second contact 33.

The waterproof component 4 is made of silica gel or rubber materials. The material of the waterproof component 4 is not limited to the above-mentioned silica gel or PU rubber, and other soft waterproof materials may be used according to practical situations.

A third through hole 43 for fixing the conductive rubber 42;

a fourth through hole 44 for fixing the conductive rubber 42;

and conductive rubber 42 for guiding out the electrical signal of the first contact 32 or the second contact 33 onto the flexible PCB.

The conductive rubber 42 is disposed in the third through hole 43 and the fourth through hole 44, and the conductive rubber 42 can transmit an electric signal to the flexible PCB on the one hand and can be waterproof on the other hand.

Example 2

Substantially the same as in the case of embodiment 1, except that 2 first through holes 31 are provided on the thin film type biosensor 3, a first contact 32 is provided on the periphery of one first through hole 31, and a second contact 33 is provided on the periphery of the other first through hole 31;

the first conductive layer is abutted with the conductive particles 2, and the second conductive layer is abutted with the waterproof component 4.

The thin film biosensor assembly comprises 2 conductive particles 2;

the sensor fixing frame 1 is provided with 2 first positioning grooves 11, and 2 conductive particles 2 are respectively arranged in the 2 first positioning grooves 11.

The protrusion 22 of one of the conductive particles 2 is abutted against the first contact 32 of the thin film biosensor 3, and the cylinder 23 passes through one of the first through holes 31 and is inserted into the third through hole 43;

the protrusion 22 of the other conductive particle 2 is abutted with the second contact 33 of the thin film biosensor 3, and the cylinder 23 passes through the other first through hole 31 and is inserted into the fourth through hole 44;

one conductive rubber 42 is provided in the second through hole 41, and one end abuts against the third contact 36 of the thin film type biosensor 3.

The utility model provides a film type biosensor and a component thereof, which consists of a front conductive layer and a back conductive layer, wherein the front conductive layer and the back conductive layer are perforated, and a T-shaped conductive structural member through hole is used for transferring an electric signal of the back conductive layer to the front, and the front conductive layer of the sensor is connected with an external circuit from the same direction of the sensor through the conductive structural member and the T-shaped conductive structural member together. The production difficulty is reduced, and the production efficiency of the sensor is improved.

In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings are merely for convenience in describing the present utility model and simplifying the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present utility model.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, a first feature "up" or "down" a second feature may be the first and second features in direct contact, or the first and second features in indirect contact via an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

In the description of the present utility model, a description of the terms "one embodiment," "some embodiments," "examples," "specific examples," or "some examples," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the present utility model. In the present utility model, the schematic representations of the above terms are not necessarily for the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, the different embodiments or examples described in the present utility model and the features of the different embodiments or examples may be combined by those skilled in the art without contradiction.

Although the utility model has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present utility model.

Claims (10)

1. A thin film biosensor, comprising: a first via (31), a first conductive layer, and a second conductive layer;

the first conductive layer is arranged on one surface of the thin film type biosensor (3);

the second conductive layer is arranged on the other surface of the thin film type biosensor (3);

one or more first through holes (31) are arranged on the film type biosensor (3).

2. The thin film biosensor of claim 1, wherein the first conductive layer comprises a first contact (32), a second contact (33), a first electrode (34), and a second electrode (35);

the first contact (32) is connected with a first electrode (34);

the second contact (33) is connected to a second electrode (35).

3. The thin film biosensor of claim 1, wherein the second conductive layer comprises a third contact (36) and a third electrode (37);

the third contact (36) is connected to a third electrode (37).

4. A thin film biosensor assembly, comprising: a sensor holder (1), conductive particles (2), a thin film biosensor (3) according to any one of claims 1-3, and a waterproof assembly (4);

the conductive particles (2) are arranged in the sensor fixing frame (1);

the thin film type biosensor (3) is provided with a first through hole (31);

one end of the conductive particle (2) passes through the first through hole (31) and is inserted into the waterproof component (4);

the conductive particles (2) are abutted with one surface of the thin film type biosensor (3);

the other surface of the film type biosensor (3) is abutted with the waterproof component (4);

the sensor fixing frame (1) is connected with the waterproof component (4);

wherein the conductive particles (2) are T-shaped or L-shaped.

5. The membrane-type biosensor assembly according to claim 4, wherein one or more first positioning grooves (11) are provided inside the sensor holder (1);

one side of the sensor fixing frame (1) is provided with a U-shaped groove (12).

6. The thin-film biosensor assembly according to claim 5, wherein the conductive pellet (2) comprises a base (21), a protrusion (22) and a cylinder (23);

a protrusion (22) and a cylinder (23) are arranged on one surface of the base (21);

the base (21) is arranged in the first positioning groove (11);

the protrusions (22) are hemispherical.

7. The membrane-type biosensor assembly according to claim 6, wherein the waterproof assembly (4) comprises a second through hole (41), a conductive rubber (42), a third through hole (43) and a fourth through hole (44);

the third through holes (43) and the fourth through holes (44) are distributed in a delta shape with the second through holes (41).

8. The thin film biosensor assembly according to claim 7, wherein,

the bulge (22) of one conductive particle (2) is abutted with the third contact (36) of the thin film type biosensor (3), and one end of the cylinder (23) is inserted into the second through hole (41);

one of the conductive rubbers (42) is arranged in the third through hole (43), and one end of the conductive rubber is abutted against the first contact (32) of the thin film type biosensor (3);

the other conductive rubber (42) is arranged in the fourth through hole (44), and one end of the conductive rubber is abutted with the second contact (33) of the thin film type biosensor (3).

9. The thin film biosensor assembly according to claim 7, wherein,

the bulge (22) of one conductive particle (2) is abutted with the first contact (32) of the thin film type biosensor (3), and the cylinder (23) passes through one first through hole (31) and is inserted into the third through hole (43);

the bulge (22) of the other conductive particle (2) is abutted with the second contact (33) of the thin film type biosensor (3), and the cylinder (23) passes through the other first through hole (31) and is inserted into the fourth through hole (44);

a conductive rubber (42) is disposed in the second through hole (41) and has one end abutting against the third contact (36) of the thin film biosensor (3).

10. The membrane-type biosensor assembly according to claim 4, wherein the waterproof assembly (4) is made of silica gel or rubber.