Compact body fluid analyte detection device

Abstract

Disclosed in the present invention is a compact body fluid analyte detection device. A transmitter is releasably connected to a bottom shell. After mounting the disposable bottom shell on the surface of the skin, a user assembles the reusable transmitter on the bottom shell, so that a complete analyte detection device can be formed. The transmitter establishes an electrical connection with a sensor by means of a conductive adhesive strip to transmit a signal. A first electrical connection region on the transmitter and an external portion of the sensor are electrically connected to adjacent structural surfaces of the conductive adhesive strip, respectively. The transmitter, the sensor, and the bottom shell can be highly integrated when being assembled together, thereby reducing the overall thickness of the body fluid analyte detection device, such that the analyte detection device is more miniaturized, and the user experience is enhanced.

Description

Compact body fluid analyte detection device Technical Field

[0001] The present invention mainly relates to the field of medical devices, and in particular to a compact body fluid analyte detection device. Background Art

[0002] In a healthy individual, the pancreas automatically monitors blood glucose levels and secretes the necessary insulin and glucagon. However, in diabetics, the pancreas malfunctions, preventing it from producing the necessary insulin. Therefore, diabetes is a metabolic disease caused by abnormal pancreatic function and is a lifelong condition. Currently, medical technology cannot cure diabetes; the only approach is to control the onset and progression of diabetes and its complications by stabilizing blood sugar levels.

[0003] Diabetics need to check their blood sugar before injecting insulin. Currently, most monitoring methods can continuously monitor blood sugar levels and transmit the data in real time to a remote device for easy viewing. This method is called continuous glucose monitoring (CGM). This method requires a monitoring device to be attached to the skin, and the sensor probe it carries penetrates the subcutaneous tissue fluid to complete the measurement.

[0004] Existing body fluid analyte detection devices are difficult to make the detection device structure more compact and the volume more miniaturized, which affects the user experience.

[0005] Therefore, the prior art urgently needs a miniaturized body fluid analyte detection device.

[0006] Summary of the Invention

[0007] An embodiment of the present invention discloses a compact body fluid analyte detection device, in which the transmitter and the bottom shell are releasably connected. After the user installs the disposable bottom shell on the skin surface, the reusable transmitter is assembled on the bottom shell to form a complete analyte detection device. The transmitter establishes an electrical connection with the sensor through a conductive adhesive strip to transmit signals. The first electrical connection area on the transmitter and the external part of the sensor are respectively electrically connected to the adjacent structural surfaces of the conductive adhesive strip. When the transmitter, sensor and bottom shell are assembled together, they can be highly integrated, reducing the overall thickness of the body fluid analyte detection device, making the analyte detection device more miniaturized, and enhancing the user experience.

[0008] The present invention discloses a body fluid analyte detection device, comprising: a bottom shell; a transmitter, used to establish a communication connection with an external device, including a first electrical connection area; a battery, used to provide electrical energy for the body fluid analyte detection device; a sensor and a conductive adhesive strip mounted on the bottom shell, the sensor including an internal part and an external part, the internal part being used to penetrate subcutaneously to detect body fluid analyte parameter information; and adhesive tape, the adhesive tape being used to adhere the bottom shell to the skin surface; wherein the conductive adhesive strip is a three-dimensional structure having multiple structural surfaces, and when the transmitter is assembled on the bottom shell, the external part and the first electrical connection area establish an electrical connection through the adjacent structural surfaces of the conductive adhesive strip.

[0009] According to one aspect of the present invention, a pit is provided on the bottom shell, and the external part is provided in the pit.

[0010] According to one aspect of the present invention, the conductive rubber strip is a rectangular parallelepiped structure.

[0011] According to one aspect of the present invention, the conductive rubber strip includes a conductive area and an insulating area spaced apart in the longitudinal direction.

[0012] According to one aspect of the present invention, the external portion and the first electrical connection area establish electrical connection with the conductive area.

[0013] According to one aspect of the present invention, at least a portion of the conductive area where no electrical connection is established is covered with an insulating material.

[0014] According to one aspect of the invention, the insulating material is continuously distributed over adjacent conductive regions.

[0015] According to one aspect of the present invention, the insulating material is spaced apart on adjacent conductive regions.

[0016] According to one aspect of the present invention, at least one structural surface of the conductive rubber strip where no electrical connection is established is covered with an insulating material.

[0017] According to one aspect of the present invention, the first electrical connection region includes at least two metal contacts.

[0018] According to one aspect of the present invention, the bottom shell includes at least one first engaging portion, and the transmitter includes at least one second engaging portion. When the transmitter is assembled on the bottom shell, the first engaging portion engages with the second engaging portion.

[0019] According to one aspect of the present invention, when the bottom shell fails due to bending, the first engaging portion is decoupled from the second engaging portion.

[0020] According to one aspect of the present invention, the bottom shell includes a crease groove, and the bottom shell fails along the crease groove.

[0021] According to one aspect of the present invention, the crease groove includes a straight portion and a curved portion.

[0022] According to one aspect of the present invention, the curved portions are disposed at both ends of the straight portion.

[0023] According to one aspect of the present invention, the first engaging portion is distributed on the arc-surface side wall of the bottom shell.

[0024] According to one aspect of the present invention, the bottom case includes a battery cavity, and the battery is disposed in the battery cavity.

[0025] According to one aspect of the present invention, the battery cavity includes a cavity shell, and the cavity shell is used to serve as an outer shell of the battery.

[0026] According to one aspect of the present invention, the battery cavity includes a detachable cavity cover.

[0027] According to one aspect of the present invention, the extracorporeal portion is bent relative to the intracorporeal portion.

[0028] Compared with the prior art, the technical solution of the present invention has the following advantages:

[0029] In the body fluid analyte detection device disclosed in the present invention, the transmitter and the bottom shell can be releasably connected. After the user installs the disposable bottom shell on the skin surface, the reusable transmitter is assembled on the bottom shell to form a complete analyte detection device. The transmitter establishes an electrical connection with the sensor through a conductive adhesive strip to transmit signals. The first electrical connection area on the transmitter and the extracorporeal part of the sensor are respectively electrically connected to the adjacent structural surfaces of the conductive adhesive strip. When the transmitter, sensor and bottom shell are assembled together, they can be highly integrated, reducing the overall thickness of the body fluid analyte detection device, making the analyte detection device more miniaturized, and enhancing the user experience.

[0030] Furthermore, a groove may be provided on the bottom shell, and the external portion of the sensor or the conductive rubber strip is provided in the groove, which can further reduce the overall thickness of the analyte detection device and is conducive to miniaturized design.

[0031] Furthermore, at least one non-electrical connection surface of the conductive rubber strip is covered with insulating material, which can prevent the non-electrical connection surface of the conductive rubber strip from being contaminated by conductive dirt such as iron filings, causing short circuits between adjacent or close conductive areas and affecting the detection signal.

[0032] Furthermore, the external part is laid flat on the bottom shell, and an additional base is no longer needed to fix the sensor, which reduces the number of structural parts of the detection device, improves the assembly integration, and is conducive to the miniaturization design of the detection device. When installing the detection device, the process of installing the sensor on the bottom shell is omitted, which simplifies the installation steps and is convenient for users to use.

[0033] Furthermore, the crease groove on the bottom shell includes a straight portion and a curved portion. The combination of the straight portion and the curved portion crease groove allows the bottom shell to bend to fail while still maintaining a certain strength, preventing the bottom shell from bending due to activities such as exercise during daily use and causing abnormal failure, which may cause the transmitter to disconnect from the bottom shell prematurely, affecting user use.

[0034] Furthermore, the cavity shell of the battery cavity can be integrally formed with the battery outer shell, that is, the battery cavity itself serves as the battery body, and there is no need to assemble a disposable battery or a rechargeable battery into the battery cavity. On the one hand, this simplifies the production process; on the other hand, since the battery outer shell is no longer needed, more electrolyte can be provided in the battery cavity, thereby increasing the energy storage capacity of the battery cavity and extending the service life of the detection device; on another hand, if the energy storage provided by the electrolyte can meet the service life of the detection device, the volume of the battery cavity can also be reduced, which is conducive to the miniaturization design of the detection device.

[0035] Furthermore, the battery cavity may also include a detachable cavity cover for sealing the battery in the battery cavity, so as to facilitate the assembly of independent batteries into the battery cavity during the production process. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] FIG1a is a schematic structural diagram of an auxiliary installation device according to an embodiment of the present invention;

[0037] FIG1b is a schematic structural diagram of an analyte detection device and an auxiliary mounting device according to one embodiment of the present invention;

[0038] FIG1c is a schematic structural diagram of the cooperation between the puncture structure, the parallel slider and the bottom shell according to one embodiment of the present invention;

[0039] FIG2 a is a schematic structural diagram of an analyte detection device according to one embodiment of the present invention;

[0040] 2b to 2c are schematic diagrams of explosion structures of analyte detection devices according to different embodiments of the present invention;

[0041] FIG3 is a schematic structural diagram of a transmitter according to an embodiment of the present invention;

[0042] FIG4 is a schematic structural diagram of a bottom shell according to an embodiment of the present invention;

[0043] 5a and 5b are schematic structural diagrams of a bottom shell before and after failure according to an embodiment of the present invention;

[0044] 5c and 5d are schematic structural diagrams of the bottom shell before and after the third engaging portion fails according to one embodiment of the present invention;

[0045] FIG6 is a schematic diagram of the XX' cross-sectional structure of the battery cavity in FIG2b according to one embodiment of the present invention;

[0046] FIG7 a is a schematic structural diagram of a conductive rubber strip according to an embodiment of the present invention;

[0047] FIG7 b is a schematic diagram of a structure in which one structural surface of a conductive rubber strip is sealed according to an embodiment of the present invention;

[0048] 7c to 7f are schematic diagrams showing the structure of the sensor and the conductive rubber strip assembled on the bottom shell according to an embodiment of the present invention;

[0049] FIG. 7 g is a schematic structural diagram of a conductive area of ​​a conductive rubber strip being sealed according to an embodiment of the present invention. DETAILED DESCRIPTION

[0050] As mentioned above, it is difficult to make the detection device more miniaturized in the prior art, which affects the user experience.

[0051] In order to solve this problem, the present invention provides a body fluid analyte detection device, in which the transmitter and the bottom shell can be releasably connected. After the user installs the disposable bottom shell on the skin surface, the reusable transmitter is assembled on the bottom shell to form a complete analyte detection device. The transmitter establishes an electrical connection with the sensor through a conductive adhesive strip to transmit signals. The first electrical connection area on the transmitter and the extracorporeal part of the sensor are respectively electrically connected to the adjacent structural surfaces of the conductive adhesive strip. When the transmitter, sensor and bottom shell are assembled together, they can be highly integrated, reducing the overall thickness of the body fluid analyte detection device, making the analyte detection device more miniaturized, and enhancing the user experience.

[0052] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be understood that unless otherwise specifically stated, the relative arrangement of components and steps, numerical expressions and numerical values ​​set forth in these embodiments should not be construed as limiting the scope of the present invention.

[0053] In addition, it should be understood that for ease of description, the sizes of the various components shown in the drawings are not necessarily drawn according to actual proportional relationships. For example, the thickness, width, length or distance of certain units may be enlarged relative to other structures.

[0054] The following description of exemplary embodiments is merely illustrative and is not intended to limit the present invention, its application, or use in any sense. Technologies, methods, and apparatus known to those skilled in the art may not be discussed in detail herein, but to the extent applicable, such technologies, methods, and apparatuses should be considered part of this specification.

[0055] It should be noted that like reference numerals and letters denote like items in the following figures, and thus, once an item is defined or described in one figure, it will not need to be further discussed in the subsequent figure descriptions.

[0056] Figure 1a is a schematic diagram of the structure of the auxiliary mounting device according to an embodiment of the present invention. Figure 1b is a schematic diagram of the structure of the analyte detection device and the auxiliary mounting device according to an embodiment of the present invention. Figure 1c is a schematic diagram of the structure of the puncture structure, parallel slider and bottom shell according to an embodiment of the present invention.

[0057] In one embodiment of the present invention, the auxiliary mounting device 20 includes a housing 201 and a protective cover 202. The analyte detection device 10 is located within the housing 201. To install the device, the user unscrews the protective cover 202 from the housing 201 and presses the housing 201 against the skin surface to attach the analyte detection device 10 to the skin surface. In this embodiment of the present invention, components such as the sensor, antenna, circuit board, and battery are all disposed within the housing of the analyte detection device 10, forming an integrated structure.

[0058] In another embodiment of the present invention, the housing 201 of the auxiliary mounting device 20 contains only the base housing 101 of the analyte detection device 10. To install the device, the housing 201 is pressed against the skin surface to attach the base housing 101 to the skin surface. The transmitter 102 is then assembled onto the base housing 101. In this embodiment of the present invention, the antenna and circuit board are located within the transmitter 102, while the sensor and battery are located within the base housing 101, forming a separate structure. In this embodiment of the present invention, the base housing 101 is disposable, while the transmitter 102 is reusable.

[0059] In some embodiments of the present invention, the base housing 101 and the auxiliary mounting device 20 are releasably connected before installation. The base housing 101 is circular or substantially circular, having a central axis l2, and the auxiliary mounting device 20 has a central axis l1. In some embodiments of the present invention, the central axes l1 and l2 coincide. In other embodiments of the present invention, the central axes l1 and l2 do not coincide.

[0060] In some embodiments of the present invention, the auxiliary installer 20 also includes a parallel slider 203. Before installation, the bottom shell 101 and the parallel slider 203 can be releasably connected. A groove 2031 is provided on the parallel slider 203 for accommodating the bottom shell 101. The shape of the groove 2031 is adapted to the shape of the bottom shell 101, and is also circular or approximately circular, and shares a central axis with the bottom shell 101. During the version iteration process of the analyte detection device 10, no matter how the size of the bottom shell 101 changes, the size of the groove 2031 on the parallel slider 203 changes adaptively.

[0061] Referring to Figure 1c, in some embodiments of the present invention, as the analyte detection device 10 iterates, the auxiliary installer 20 can adapt to different versions of the analyte detection device 10 to save the research and development, production costs and cycles of the auxiliary installer 20 and the analyte detection device 10. Different versions of the analyte detection device 10 often have different sizes. Based on this, some adaptive modifications are also needed to the structure of the analyte detection device 10.

[0062] For example, in some embodiments of the present invention, when the bottom shell 101 of some larger-sized analyte detection devices 10 is fixed on the parallel slider 203 through the groove 2031, the central axis l2 of the bottom shell 101 coincides with the central axis l1 of the auxiliary mounter 20 (the central axis of the parallel slider 203). At this time, the groove 2031 is also coaxial with the auxiliary mounter 20 and the bottom shell 101, and the puncture structure 204 (such as a steel needle) is coaxial with the sensor 1032 to accommodate the sensor 1032. When the auxiliary mounter 20 is changed to adapt to the bottom shell 101 of a smaller size, if the position of the puncture structure 204 on the auxiliary mounter 20 remains unchanged, that is, the sensor 1032 If the position of sensor 32 remains unchanged, the central axis l2 of the bottom shell 101 will deviate from the central axis l1 of the auxiliary installation device 20 and move closer to the position of the puncture structure 204, and the two will no longer overlap. In this case, the parallel slider 203 needs to be structurally improved. For example, the groove 2031 can be moved closer to the puncture structure 204 as a whole, and its circumference can be adaptively reduced along with the bottom shell 101, so that the groove 2031 can accommodate the bottom shell 101 while the puncture structure 204 can still pass through the bottom shell 101 and accommodate the sensor 1032. At this time, the central axis of the groove 2031 will deviate from the central axis l1 of the auxiliary installation device 20 and be in an eccentric position relative to the parallel slider 203. Alternatively, in other embodiments of the present invention, if the central axes of the bottom shell 101 and the auxiliary installation device 20 are kept coincident, that is, the position of the groove 2031 remains unchanged, the position of the puncture structure 204 needs to be moved closer to the central axis l2 of the bottom shell 101. Since the puncture structure 204 is fixed inside the outer shell 201, this requires modifying the internal shell structure of the outer shell 201. For the auxiliary installer 20, changing the position of the groove 2031 of the parallel slider 203 is easier than changing the position of the puncture structure 204, and the design and production modification costs are lower and the cycle is shorter. Therefore, in the preferred embodiment of the present invention, in order to adapt to the smaller size of the analyte detection device 10, it is sufficient to adaptively change the size of the groove 2031 and the position on the parallel slider 203.

[0063] Figure 2a is a schematic diagram of the structure of an analyte detection device according to an embodiment of the present invention. Figures 2b-2c are schematic diagrams of the exploded structures of analyte detection devices according to different embodiments of the present invention. Figure 3 is a schematic diagram of the structure of an emitter according to an embodiment of the present invention. Figure 4 is a schematic diagram of the structure of a bottom shell according to an embodiment of the present invention.

[0064] In some embodiments of the present invention, the analyte detection device 10 includes a base 101 , a transmitter 102 and a sensor module 103 .

[0065] In some embodiments of the present invention, the bottom housing 101 and the transmitter 102 are releasably connected. The bottom housing 101 includes at least one first engaging portion 1011, and the transmitter 102 is provided with at least one second engaging portion 1021 at a corresponding position. The first engaging portion 1011 and the second engaging portion 1021 can engage with each other, so that the transmitter 102 can be fixed to the bottom housing 101.

[0066] In some embodiments of the present invention, the first engaging portion 1011 and the second engaging portion 1021 may be engaged in a manner such as a hook and a slot, a hook and a hole, or a hook and a hook, which is not limited here.

[0067] In some embodiments of the present invention, after the first engaging portion 1011 and the second engaging portion 1021 engage with each other, the transmitter 102 and the bottom housing 101 can maintain a good fixed connection, and the transmitter 102 will not be easily separated from the bottom housing 101.

[0068] In some embodiments of the present invention, since the analyte detection device 10 is circular or approximately circular, the side walls of the bottom shell 101 and the emitter 102 are both curved or arc-shaped, and the two are adapted in shape and size.

[0069] In some embodiments of the present invention, at least two first engaging portions 1011 are symmetrically arranged on the curved side wall of the bottom shell 101 to constrain the emitter 102 , and correspondingly, at least two second engaging portions 1021 are arranged at corresponding positions on the curved side wall of the emitter 102 .

[0070] In one embodiment of the present invention, in order to more firmly constrain the transmitter 102 on the bottom shell 101, at least two third clamping parts 1012 and at least two fourth clamping parts 1022 can be respectively provided on the bottom shell 101 and the transmitter 102, and the position, shape and number of the fourth clamping parts 1022 correspond to those of the third clamping parts 1012.

[0071] In some embodiments of the present invention, since the bottom shell 101 is circular or approximately circular in shape, the third engaging portions 1012 are also distributed on the curved sidewall of the bottom shell 101 .

[0072] In some embodiments of the present invention, the third engaging portions 1012 are symmetrically distributed on the sidewall of the bottom housing 101 .

[0073] In one embodiment of the present invention, with reference to the bottom case 101 shown in FIG. 2 a , the first engaging portion 1011 and the third engaging portion 1012 are both located on the side wall of the bottom case 101 , with the first engaging portion 1011 located at the left end of the side wall of the bottom case 101 , and the third engaging portion 1012 located in the middle of the side wall of the bottom case 101 . The above positions are determined by the specific shape of the transmitter 102 so that both ends of the transmitter 102 can be respectively fixed to the bottom case 101 , thereby maintaining a tight snap-fit ​​connection between the transmitter 102 and the bottom case 101 . Therefore, it is anticipated that when the shape of the transmitter 102 changes, the position, shape, and number of the first engaging portion 1011 (the second engaging portion 1021 ) and the third engaging portion 1012 (the fourth engaging portion 1022 ) will also change adaptively. Regardless of how their positions, shapes, and numbers change, they are all within the scope of protection of the present invention.

[0074] In some embodiments of the present invention, the third engaging portion 1012 is disposed on the curved sidewall of the bottom case 101, as shown in Figure 3. In other embodiments of the present invention, the third engaging portion 1012 is disposed on the bottom surface of the bottom case 101. In still other embodiments of the present invention, the third engaging portion 1012 may be disposed on both the curved sidewall and the bottom surface of the bottom case 1012, without limitation.

[0075] In a preferred embodiment of the present invention, the bottom shell 101 is provided with a first snap-fitting portion 1011 and a third snap-fitting portion 1012. Correspondingly, the transmitter 102 is provided with a second snap-fitting portion 1021 and a fourth snap-fitting portion 1022. The position, shape and number of the second snap-fitting portion 1021 and the fourth snap-fitting portion 1022 are respectively adapted to the first snap-fitting portion 1011 and the third snap-fitting portion 1012.

[0076] In some embodiments of the present invention, the transmitter 102 can be stably fixed to the bottom shell 101 by engaging the first engaging portion 1011 and the third engaging portion 1012 with the second engaging portion 1021 and the fourth engaging portion 1022, respectively. Since the transmitter 102 is reusable, when the user replaces the analyte detection device 10 with a new one, the transmitter 102 needs to be removed from the bottom shell 101. For this purpose, a solution is designed to allow the bottom shell 101 to bend and fail. When the bottom shell 101 is bent and fails, the engagement between the first engaging portion 1011 and the second engaging portion 1021 and / or the engagement between the third engaging portion 1012 and the fourth engaging portion 1022 is decoupled, thereby separating the transmitter 102 and the bottom shell 101. See below for details.

[0077] In some embodiments of the present invention, in order to allow the bottom shell 101 to bend and fail, the bottom shell 101 needs to be made of a flexible material, such as PE or PP plastic. During use, the bottom shell 101 needs to be attached to the user's skin surface, such as the arm or stomach. The user's skin surface is constantly moving or bending during daily activities. If the bottom shell 101 is too soft, it will also bend. This will cause the first clamping part 1011 and the second clamping part 1021 and / or the third clamping part 1012 and the fourth clamping part 1022 to be decoupled with a certain probability, causing the transmitter 102 and the bottom shell 101 to become loose. Based on this, the bottom shell 101 cannot be too soft.

[0078] In some embodiments of the present invention, a crease groove 1016 is provided on the bottom shell 101, which can maintain a certain rigidity of the bottom shell 101 while facilitating the user to bend the bottom shell 101, so that the coupling portion is decoupled after the bottom shell 101 fails. The bottom surface thickness at the crease groove 1016 is slightly thinner than other bottom surfaces. For example, when the thickness of the bottom shell 101 is 0.5 to 1.0 mm, the bottom surface at the crease groove 1016 is relatively reduced by 0.01 to 0.7 mm in thickness, or the bottom surface at the crease groove 1016 is half hollow (no bottom shell material is provided at the hollow part, and the bottom surface thickness is 0 mm here), that is, the bottom surfaces on both sides of the crease groove 1016 are discontinuously connected by the bottom shell 101 material, or the crease groove 1016 is not provided on the bottom surface of the bottom shell 101, but the bottom surface of the bottom shell 101 is only provided with a half-hollow structure, connecting the bottom surfaces of the bottom shells on both sides, which can also facilitate the user to bend the bottom shell 101.

[0079] 4 , in some embodiments of the present invention, with the illustrated xy coordinates as a reference, the xy coordinates are the plane coordinates of the bottom shell 101 , and the crease groove 1016 is a linear groove parallel to the x-axis. When the user bends the bottom shell 101 , the bottom surface of the bottom shell 101 on both sides of the crease groove 1016 warps in a direction perpendicular to the xy coordinate plane.

[0080] In other embodiments of the present invention, the crease groove 1016 is composed of a straight portion 10161 and a curved portion 10162, forming an A-A' trajectory as shown in FIG4 , wherein the straight portion 10161 is parallel to the x-axis, and the curved portions 10162 are located at both ends of the straight portion 10161. The groove in the straight portion 10161 facilitates bending of the bottom shell 101, and the curved portions 10162 also facilitate bending of the bottom shell 101. The difference is that the curved portion 10162 includes a portion that is at a certain angle to the x-axis. This increases the bending strength of the crease groove 1016 and adds redundancy to the rigidity design of the bottom shell 101, making the crease groove 1016 less likely to bend during daily use and improving the stability of the connection between the transmitter 102 and the bottom shell 101.

[0081] In some embodiments of the present invention, the fold groove 1016 can also be used in conjunction with the third engaging portion 1012 and the fourth engaging portion 1022 to complete the engagement and separation of the bottom shell 101 and the transmitter 102, as described in detail below.

[0082] In some embodiments of the present invention, the bottom surface of the straight portion 10161 or the curved portion 10162 may also be semi-hollowed, that is, the bottom surfaces on both sides of the straight portion 10161 or the curved portion 10162 are discontinuously connected by the material of the bottom shell 101, and the unconnected parts are completely removed, which can reduce the overall weight of the analyte detection device 10.

[0083] Figures 5a and 5b are schematic diagrams of the structure of the bottom shell before and after failure of the embodiment of the present invention. Figures 5c and 5d are schematic diagrams of the structure of the third engaging portion of the bottom shell before and after failure of the embodiment of the present invention.

[0084] In some embodiments of the present invention, no matter whether the fold groove 1016 is a straight groove or a straight and curved combination groove, both ends thereof correspond to the third engaging portion 1012 and the fourth engaging portion 1022 .

[0085] In some embodiments of the present invention, the bottom housing 101 includes a fixing portion and a force-applying portion. When a user bends the bottom housing 101 to separate the transmitter 102, they need to hold the fixing portion with their fingers and apply pressure F to the force-applying portion. The bottom housing 101 bends along the crease groove 1016 or fails to bend, and the third engaging portion 1012 and the fourth engaging portion 1022 are decoupled. Here, the fixing portion and the force-applying portion are relative concepts, which will be described in detail below.

[0086] In some embodiments of the present invention, failure is a conventional concept in the field of engineering materials. After failure, the material loses its original function and the failed part cannot be restored. Since the third engaging portion 1012 is part of the bottom shell 101, failure of the bottom shell 101 includes failure of the bottom surface, sidewalls, or third engaging portion 1012 of the bottom shell 101. Therefore, failure modes of the bottom shell 101 include fracture of the bottom shell 101, bending deformation of the bottom shell 101, and fracture of the third engaging portion 1012. Obviously, after failure of the bottom shell 101, the bottom shell 101 loses its function and role of engaging the transmitter 102.

[0087] In some embodiments of the present invention, the fixing portion may be fixed by clamping, supporting, or other methods, which are not specifically limited herein, as long as the fixing portion can be fixed. Specifically, the crease groove 1016 divides the bottom shell into two sides, one of which serves as the fixing portion and the other as the force-applying portion. The fixing portion and the force-applying portion can be interchanged.

[0088] Referring to Figures 5a and 5b , in some embodiments of the present invention, the process of separating the bottom housing 101 and the transmitter 102 is as follows: Use one finger to hold the fixing portion, and use another finger to apply a force F in one direction to the force-applying portion, causing the bottom housing 101 to bend or flex. This causes the fourth engaging portion 1022 to disengage from the third engaging portion 1012, decoupling the transmitter 102 from the bottom housing 101. Clearly, the bottom housing 101 bends or flexes along the crease 1016. The crease, in conjunction with the third and fourth engaging portions, facilitates separation of the transmitter from the bottom housing.

[0089] 5c and 5d , in some embodiments of the present invention, the process of separating the bottom shell 101 and the transmitter 102 is as follows: fix the fixing portion with one finger, and use another finger to apply a force F to the force-applying portion in one direction to disable the third engaging portion 1012, thereby separating the third engaging portion 1012 and the fourth engaging portion 1022, thereby separating the transmitter 102 from the bottom shell 101.

[0090] In some embodiments of the present invention, a battery cavity 1013 is further provided on the bottom shell 101 . A battery is installed in the battery cavity 1013 to provide electrical energy for the analyte detection device 10 .

[0091] With reference to Figure 2a, in some embodiments of the present invention, the battery cavity 1013 serves as a force-applying portion, and the transmitter 102 serves as a fixing portion. When separating the transmitter 102 from the bottom shell 101, the user holds the transmitter 102 with one finger, and applies a force F to the battery cavity 1013 with another finger, causing the battery cavity 1013 to bend along the direction of curve a. The fourth engaging portion 1022 has a tendency to move in the direction of curve d relative to the battery cavity 1013. As the force continues to be applied to the battery cavity 1013, the bottom shell 101 bends and deforms, and the bottom shell 101 no longer presses against the fourth engaging portion 1022. The transmitter 102 moves along the direction of curve b relative to the battery cavity 1013. The transmitter 102 is moved in the direction of the line and the c curve until the fourth engaging portion 1022 is decoupled from the third engaging portion 1012. At this time, since the first engaging portion 1011 and the second engaging portion 1021 are not completely decoupled, the transmitter 102 and the bottom shell 101 are in a semi-connected state, which can prevent the transmitter 102 from falling off during the disassembly process. The user only needs to hold the transmitter 102 with his fingers to release the engaging state of the first engaging portion 1011 and the second engaging portion 1021 to complete the disassembly of the transmitter 102, which is easy to operate.

[0092] As mentioned above, the force-applying portion and the fixing portion are relative. In other embodiments of the present invention, the transmitter 102 serves as the force-applying portion and the battery cavity 1013 serves as the fixing portion, and the disassembly process is the same.

[0093] In some embodiments of the present invention, the battery cavity 1013 further includes a detachable cavity cover 10132. This detachable cavity cover 10132 is used to assemble the battery or electrolyte into the battery cavity 1013 during the production process. After production is completed, the cavity cover 10132 is fixed to the battery cavity 1013 and sealed to prevent water droplets and other dirt from entering the battery cavity 1013. After the cavity cover 10132 is sealed, the adhesive tape 1015 is adhered and fixed to the bottom shell 101, and the cavity cover 10132 is covered by the adhesive tape 1015.

[0094] In some embodiments of the present invention, the cavity cover 10132 is connected to the cavity shell 10131 by gluing, snapping, welding, or the like to be fixed to the battery cavity 1013. It is understood that the cavity cover 10132 can be releasably connected to the cavity shell 10131 before production, or can be in a detachable state. After the battery is installed, the cavity cover 10132 is fixedly connected to the cavity shell 10131, and the cavity cover 10132 and the cavity shell 10131 can be completely sealed. The cavity cover 10132 cannot be removed again, so as to prevent the cavity cover 10132 from loosening and external dirt from entering the battery cavity 1013.

[0095] In some embodiments of the present invention, the battery is an independent button battery, and the battery is accommodated in the battery cavity 1013 .

[0096] In some embodiments of the present invention, the positive and negative electrodes of the battery are electrically connected to elastic conductors 1014, respectively. The other end of elastic conductors 1014 is electrically connected to second electrical connection areas 1024 of transmitter 102. Elastic conductors 1014 serve as a conductive carrier, allowing the battery to provide electrical energy to transmitter 102. Second electrical connection areas 1024 are compatible with elastic conductors 1014, and the number of second electrical connection areas 1024 is the same.

[0097] In some embodiments of the present invention, when the transmitter 102 is assembled to the bottom case 101, the second electrical connection area 1024 contacts and compresses the elastic conductor 1014. The elastic conductor 1014 in the compressed state can be in closer contact with the second electrical connection area 1024. Secondly, when the transmitter 102 is disassembled, after the third locking portion 1012 and the fourth locking portion 1022 are decoupled, the elastic force of the elastic conductor 1014 can also help separate the transmitter 102 from the bottom case 101.

[0098] In some embodiments of the present invention, the elastic conductor 1014 may be a conductive spring, conductive rubber, or the like.

[0099] In some embodiments of the present invention, the second electrical connection region 1024 is a metal contact.

[0100] In other embodiments of the present invention, the battery cavity 1013 itself serves as the battery body to provide electrical energy to the analyte detection device 10 , as shown in FIG6 for details.

[0101] FIG6 is a schematic diagram of the XX' cross-sectional structure of the battery cavity in FIG2b according to an embodiment of the present invention.

[0102] In some embodiments of the present invention, battery chamber 1013 includes a chamber housing 10131, which is integrally formed with bottom housing 101, further miniaturizing analyte detection device 10. In some embodiments of the present invention, battery chamber 1013 includes chamber housing 10131, a diaphragm 10133, an electrolyte 10134, a positive electrode sheet 10135, a negative electrode sheet 10136, an electrolyte isolation layer 10137, and a conductive sheet 10138. Chamber housing 10131 is used to house and secure the aforementioned structures. Positive electrode sheet 10135 and negative electrode sheet 10136 are immersed in electrolyte 10134 and separated by diaphragm 10133. According to the above structure, the battery cavity 1013 itself can serve as a complete battery to provide electrical energy for the analyte detection device 10. The cavity shell of the battery cavity serves as the battery housing, eliminating the need for a separate battery housing. The battery cavity 1013 can be more compact while still accommodating more electrolyte 10131, storing more electrical energy and extending the life of the analyte detection device 10. In some embodiments of the present invention, the diaphragm 10133, the positive electrode sheet 10135, and the negative electrode sheet 10136 are wound structures, with the diaphragm 10133 located between the positive electrode sheet 10135 and the negative electrode sheet 10136.

[0103] In some embodiments of the present invention, the separator 10133 , the positive electrode sheet 10135 , and the negative electrode sheet 10136 are a stacked planar structure, and the separator 10133 , the positive electrode sheet 10135 , and the negative electrode sheet 10136 are spaced apart from each other.

[0104] In some embodiments of the present invention, the solute of electrolyte 10134 is a lithium salt, such as lithium perchlorate (LiClO4), lithium hexafluorophosphate (LiPF6), or lithium tetrafluoroborate (LiBF4). The solvent is selected from the group consisting of ethylene carbonate, propylene carbonate, diethyl carbonate, dimethyl carbonate, ethyl methyl carbonate, phosphorus pentafluoride, hydrofluoric acid, diethyl ether, ethylene carbonate, propylene carbonate, and diethyl carbonate. In a preferred embodiment of the present invention, the solvent is an organic solvent, such as one of diethyl ether, ethylene carbonate, propylene carbonate, and diethyl carbonate.

[0105] In some embodiments of the present invention, the main material of the positive electrode plate 10135 is manganese dioxide, and is manufactured by the following manufacturing process:

[0106] ① Screen the electrolytic manganese dioxide, conductive agent, and binder. This can be done using a screen or airflow classifier. Select electrolytic manganese dioxide particles with a particle size of less than 200 μm, place them in a quartz boat, and heat treat them in a sintering furnace at 200°C for 4 hours. The purpose of this step is to cause the electrolytic manganese dioxide to lose some of its bound water, shift the X-ray diffraction peak, reduce the interplanar spacing, and strengthen the Mn-O bonding force, thereby increasing the discharge capacity of the electrolytic manganese dioxide.

[0107] ② After cooling the electrolytic manganese dioxide from step ① to below 60°C, weigh 9g of electrolytic manganese dioxide, 0.5g of a conductive agent with a particle size of less than 200µm, and 0.5g of a binder with a particle size of less than 200µm using an electronic balance. Place the mixture in a grinding dish and stir thoroughly. Then, grind it manually or electrically to obtain 10g of the ground mixture, ensuring that the ground mixture can pass through a 300-mesh (48µm particle size) sieve. This step is intended to ensure uniformity of the mixture and avoid uneven dispersion of the conductive agent and additives.

[0108] In other embodiments of the present invention, the mass ratio of electrolytic manganese dioxide, conductive agent and binder is not limited to the above proportions, and their mass proportions can be 80%-96%, 2%-10% and 2%-10% respectively.

[0109] In a preferred embodiment of the present invention, the conductive agent may be one or more of conductive carbon black, graphite, super P or carbon nanotubes.

[0110] In a preferred embodiment of the present invention, the binder may be one or more of PVDF (polyvinylidene fluoride), polytetrafluoroethylene, and sodium polyacrylate.

[0111] ③ Place the ground mixture in a vacuum oven and heat it to 65°C for 5 hours to dry out any moisture in the mixture and ensure that the sample is dry to obtain a positive electrode mixture.

[0112] ④ Add 10g of NMP (N-methylpyrrolidone) solvent to a dry glass bottle, then slowly add the positive electrode mixture to the glass bottle and stir with a magnetic stirrer for 3 hours to ensure uniform mixing, and obtain a positive electrode slurry with a solid content of 50%. The purpose of this step is to ensure that the components in the positive electrode slurry are evenly dispersed, and the solid content has a certain relationship with the viscosity of the positive electrode slurry. The positive electrode slurry with a solid content of 50% has a better viscosity, and the film forming effect after coating on the substrate is better, which can reduce the phenomenon of powder loss or cracking.

[0113] ⑤ Use a flat coating machine to coat the positive electrode slurry on the surface of the substrate to obtain a conductive layer, and then place the conductive layer and the substrate in a vacuum oven and bake them at 110°C for 12 hours to ensure that the moisture is completely dried.

[0114] In a preferred embodiment of the present invention, the substrate material is one of aluminum foil or nickel foam mesh, with a thickness of 12-18 μm.

[0115] In a more preferred embodiment of the present invention, the base material is aluminum foil with a thickness of 15 μm.

[0116] ⑥ Using an electric vertical roller press to roll the conductive layer and substrate can reduce the overall thickness of the conductive layer and substrate to 180-220μm, resulting in a finished positive electrode sheet. By adjusting the operating parameters of the coating machine and roller press, the thickness of the positive electrode sheet can be controlled, ensuring that the sheet has a high compaction density while also having a relatively complete conductive network, thus meeting the working requirements of high-current pulse discharge.

[0117] In an embodiment of the present invention, the negative electrode plate 10136 is mainly made of lithium-based material.

[0118] In other embodiments of the present invention, the positive electrode plate 10135 can also be a lithium-containing compound such as lithium manganese oxide, lithium cobalt oxide, lithium iron phosphate, etc., and the corresponding negative electrode plate 10136 is graphite.

[0119] In the embodiment of the present invention, the material of the diaphragm 10133 is PE (polyethylene) or PP (polypropylene), which can be a single layer of PE or PP or three layers of PE or PP.

[0120] In some embodiments of the present invention, one end A of the conductive sheet 10138 is fixedly connected to the positive electrode sheet 10135 or the negative electrode sheet 10136, and the other end B of the conductive sheet 10138 passes through the electrolyte isolation layer 10137 and the cavity shell 10131 and is electrically connected to the elastic conductor 1014. In a preferred embodiment of the present invention, end A is fixedly connected to the positive electrode sheet 10135 or the negative electrode sheet 10136 via solder or solder paste.

[0121] In an embodiment of the present invention, the conductive sheet 10138 connected to the positive electrode plate 10135 is made of aluminum, and the conductive sheet 10138 connected to the negative electrode plate 10136 is made of nickel or nickel-plated copper.

[0122] In some embodiments of the present invention, the material of the cavity shell 10131 is generally plastic, such as PE (polyethylene), PP (polypropylene) or PC (polycarbonate), which is easily corroded by the electrolyte 10134. Therefore, it is necessary to set an electrolyte isolation layer 10137 inside the cavity shell 10131.

[0123] In some embodiments of the present invention, the electrolyte isolation layer 10137 is TPE (butyl rubber) or PET (polyethylene terephthalate). TPE is a thermoplastic elastomer material with strong processability. The PET material itself serves as a container for the electrolyte and can effectively isolate the electrolyte from corroding the cavity shell.

[0124] In an embodiment of the present invention, the electrolyte isolation layer 10137 can be a thin film coated on the inner side of the cavity shell 10131 by a deposition method or a solution method, or it can be a separate closed shell.

[0125] In a preferred embodiment of the present invention, electrolyte isolation layer 10137 is a thin film with a thickness of 300-500 μm. If the thickness of electrolyte isolation layer 10137 is too thin, the film material will be soaked and softened by the electrolyte, which will cause film aging over time. If the thickness is too thick, it will occupy space within the chamber. In a more preferred embodiment of the present invention, the thickness of electrolyte isolation layer 10137 is 400 μm.

[0126] In some embodiments of the present invention, if the cavity shell 10131 is made of a material resistant to corrosion by the electrolyte 10134, such as PFA (polytetrafluoroethylene) or FEP (fluoroethylene propylene), the electrolyte isolation layer 10137 can be omitted, the volume of the electrolyte 10134 can be increased, and the battery energy storage can be improved.

[0127] In some embodiments of the present invention, a sensor module is further provided on the bottom shell 101 . The sensor module includes an elastic sealing ring 1031 , a sensor 1032 and a conductive rubber strip 1033 . The sensor 1032 includes an internal part 10321 and an external part 10322 .

[0128] In some embodiments of the present invention, the elastic sealing ring 1031 is an annular structural member, and the external portion 10322 and the conductive rubber strip 1033 are both located within the inner ring of the elastic sealing ring 1031. When the transmitter 102 is assembled onto the bottom shell 101, with reference to the direction shown in FIG2b , the lower end surface of the elastic sealing ring 1031 contacts the bottom surface of the bottom shell 101, and the upper end surface contacts the transmitter 102 housing. A completely enclosed space is formed within the inner ring of the elastic sealing ring 1031, and the external portion 10322 and the conductive rubber strip 1033 are located within this enclosed space. The enclosed space of the elastic sealing ring 1031 prevents the ingress of contaminants such as water droplets, metal shavings, and blood, thereby preventing contamination of the external portion 10322 and the conductive rubber strip 1033 and affecting the detection signal.

[0129] Figure 7a is a schematic diagram of the structure of a conductive rubber strip according to an embodiment of the present invention. Figure 7b is a schematic diagram of the structure of a conductive rubber strip with one structural surface sealed according to an embodiment of the present invention. Figures 7c-7f are schematic diagrams of the structure of the sensor and conductive rubber strip assembled to the bottom housing according to an embodiment of the present invention. Figure 7g is a schematic diagram of the structure of a conductive rubber strip with the conductive area sealed according to an embodiment of the present invention.

[0130] Referring to Figure 7a, in an embodiment of the present invention, the conductive rubber strip 1033 is a three-dimensional structure having multiple structural surfaces, such as a rectangular parallelepiped structure. The conductive rubber strip 1033 has conductive and insulating regions spaced apart along its longitudinal length. Both the conductive and insulating regions extend transversely along the conductive rubber strip 1033, where the transverse direction is perpendicular to the longitudinal direction. Because both the conductive and insulating regions extend transversely along the conductive rubber strip 1033, the four side structural surfaces 1033a, 1033b, 1033c, and 1033d of the conductive rubber strip 1033 each have conductive and insulating regions. Therefore, it is understood that the corresponding conductive regions on the four side structural surfaces 1033a, 1033b, 1033c, and 1033d are electrically connected.

[0131] In some embodiments of the present invention, the conductive area and the insulating area are spaced apart. The insulating area can separate two adjacent conductive areas. The insulating area has good insulation properties, which can prevent crosstalk between the electrical signals of the two adjacent conductive areas and ensure the stability of the detection signal.

[0132] In some embodiments of the present invention, the conductive adhesive strip 1033 is used to electrically connect the sensor 1032 and the transmitter 102. Specifically, the transmitter includes a first electrical connection area 1023, and the first electrical connection area 1023 includes at least two metal contacts 10231. At least two pins (not shown in the figure) are provided on the external part 10322 of the sensor 1032. Each metal contact 10231 contacts a different conductive area on a single structural surface of the conductive adhesive strip 1033. At the same time, the corresponding conductive areas of the above-mentioned conductive areas on the same, adjacent or opposite structural surfaces contact the pins, thereby realizing the electrical connection between the pins and the metal contacts 10231. The detection signal of the sensor 1032 can be transmitted to the transmitter 102 through the conductive adhesive strip 1033, and the transmitter 102 can also transmit the control signal to the sensor 1032 through the conductive adhesive strip 1033.

[0133] In some embodiments of the present invention, the number of metal contacts 10231 is the same as the number of pins.

[0134] In some embodiments of the present invention, the metal contact 10231 establishes an electrical connection with the external part 10322 through the relative structural surfaces of the conductive rubber strip 1033, i.e., 1033a, 1033c or 1033b, 1033d, forming a stacked structure of the external part 10322-conductive rubber strip 1033-metal contact 10231. At this time, the external part 10322 is laid flat on the bottom surface of the bottom shell 101 in a parallel state, as shown in Figure 7c.

[0135] In some embodiments of the present invention, the metal contact 10231 and the external part 10322 establish an electrical connection through the adjacent structural surfaces of the conductive rubber strip 1033, such as the external part 10322 is electrically connected to the side structural surface 1033c of the conductive rubber strip 1033, and the metal contact 10231 is electrically connected to the upper structural surface 1033d. At this time, the external part 10322 is laid flat on the bottom surface of the bottom shell 101 in a vertical state, as shown in Figure 7d.

[0136] The above embodiment is for illustration only, and other adjacent structural surfaces can also realize electrical connection function. Compared with the stacked structure of external portion 10322 - conductive adhesive strip 1033 - metal contact 10231, realizing electrical connection between adjacent structural surfaces can reduce the overall thickness, which is conducive to the miniaturization design of analyte detection device 10.

[0137] 7e and 7f , in some embodiments of the present invention, to further reduce the overall thickness of the analyte detection device 10, a recess 1017 may be provided on the bottom housing 101, and the external portion 10322 or the conductive adhesive strip 1033 may be placed in the recess 1017. Placing the external portion 10322 or the conductive adhesive strip 1033 in the recess 1017 allows the external portion 10322 or the conductive adhesive strip 1033 to be fixed by an interference fit with the recess 1017, thereby improving the assembly stability of the sensor 1032 or the conductive adhesive strip 1033.

[0138] In some embodiments of the present invention, referring to the direction shown in FIG. 2 b , the external portion 10322 is electrically connected to the side structural surface 1033 c of the conductive rubber strip 1033 , and the first electrical connection area 1023 of the emitter 102 is electrically connected to the upper structural surface 1033 d of the conductive rubber strip 1033 .

[0139] With reference to Figures 2a, 7b, and 7d, in some embodiments of the present invention, a conductive area also exists on the unused structural surface, and this conductive area is continuous with the conductive area on the used structural surface. If this conductive area is short-circuited by dirt, it will also cause the conductive area on the used structural surface to short-circuit, affecting the stability of the detection signal. Therefore, it can be considered to seal the conductive area on the unused structural surface to prevent it from being short-circuited by dirt. For example, with reference to Figure 7b, in some embodiments of the present invention, the external portion 10322 is electrically connected to the side structural surface 1033c of the conductive adhesive strip 1033, and the first electrical connection area 1023 of the transmitter 102 is electrically connected to the upper structural surface 1033d of the conductive adhesive strip 1033. At this time, the side structural surface 1033a and the lower structural surface 1033b are unused. Insulating material can be coated or pasted on the side structural surface 1033a and / or the lower structural surface 1033b to prevent the conductive areas on these two structural surfaces from being short-circuited by dirt. In the embodiment of the present invention, only 1033a is easily contaminated, so only 1033a may be coated or pasted, thereby preventing the conductive area from being short-circuited due to dirt and avoiding waste of insulating materials.

[0140] With reference to Figures 2c, 7b and 7e, in other embodiments of the present invention, the external part 10322 is electrically connected to the lower structural surface 1033b of the conductive adhesive strip 1033, and the first electrical connection area 1023 of the transmitter 102 is electrically connected to the upper structural surface 1033d of the conductive adhesive strip 1033. At this time, the side structural surfaces 1033a and 1033c are not used, and insulating material can be coated or pasted on the side structural surfaces 1033a and / or 1033c. Preferably, insulating material is coated or pasted on both the side structural surfaces 1033a and 1033c to prevent the conductive areas on these two structural surfaces from being short-circuited due to dirt.

[0141] In some embodiments of the present invention, the insulating material may be one or more of rubber, silicone, polyethylene, glass fiber, epoxy resin, and insulating varnish, as long as good insulating properties can be achieved.

[0142] In some embodiments of the present invention, the thickness of the insulating material is 1 to 1000 um, and preferably, the thickness of the insulating material is 10 to 100 um.

[0143] In some embodiments of the present invention, the insulating material may only cover the conductive area of ​​the conductive rubber strip 1033, and can also achieve the function of insulating the non-electrically connected structural surface.

[0144] Referring to Figure 7g, which is a top view of the conductive rubber strip 1033, in some embodiments of the present invention, the first electrical connection region 1023 of the emitter 102 is electrically connected to the upper structural surface 1033d of the conductive rubber strip 1033. The conductive areas on the upper structural surface 1033d that are not electrically connected to the first electrical connection region 1023 may also be contaminated by dirt, resulting in a short circuit. In this case, the conductive areas not electrically connected to the first electrical connection region 1023 may also be covered with an insulating material, with the insulating material being distributed at intervals on the upper structural surface 1033d. Alternatively, the outer portion 10322 is electrically connected to the side structural surface 1033c of the conductive rubber strip 1033. The conductive areas on the side structural surface 1033c that are not electrically connected to the outer portion 10322 may also be contaminated by dirt, resulting in a short circuit. Therefore, the conductive areas on the side structural surface 1033c that are not electrically connected to the outer portion 10322 may also be covered with an insulating material, with the insulating material being distributed at intervals on the side structural surface 1033c.

[0145] Since the conductive area and the insulating area on the conductive rubber strip 1033 are distributed at intervals, and the insulating material only needs to cover the conductive area to achieve its insulating function, in some embodiments of the present invention, the insulating material is covered on two adjacent conductive areas in a continuous form, and at the same time covers the insulating area between the two adjacent conductive areas. Alternatively, in other embodiments of the present invention, the insulating material is covered on two adjacent conductive areas in an interval form, and does not cover the insulating area between the two adjacent conductive areas.

[0146] In some embodiments of the present invention, the conductive rubber strip 1033 is covered with insulating material on the structural surface that is not electrically connected to other components, which can better prevent short circuit caused by dirt contamination and improve the stability of the detection signal.

[0147] In some embodiments of the present invention, the external portion 10322 is bent or folded relative to the internal portion 10321, and the internal portion 10321 is perpendicular or approximately perpendicular to the bottom shell 101 and passes through the bottom shell 101 to facilitate penetration into the user's subcutaneous tissue.

[0148] In some embodiments of the present invention, the external part 10322 is fixed to the bottom shell 101 through the sensor base. The sensor base and the bottom shell 101 can be releasably connected. Before installation, the sensor base is separated from the bottom shell 101. During installation, the sensor base is assembled to the bottom shell 101.

[0149] In other embodiments of the present invention, the external portion 10322 is directly laid flat on the bottom surface of the bottom shell 101, eliminating the sensor base structure, making the internal structure of the analyte detection device 10 more compact and facilitating miniaturized design.

[0150] In summary, the present invention discloses a body fluid analyte detection device, in which the transmitter and the bottom shell can be releasably connected. After the user installs the disposable bottom shell on the skin surface, the reusable transmitter is assembled on the bottom shell to form a complete analyte detection device. The transmitter establishes an electrical connection with the sensor through a conductive adhesive strip to transmit signals. The first electrical connection area on the transmitter and the extracorporeal part of the sensor are respectively electrically connected to the adjacent structural surfaces of the conductive adhesive strip. When the transmitter, sensor and bottom shell are assembled together, they can be highly integrated, reducing the overall thickness of the body fluid analyte detection device, making the analyte detection device more miniaturized, and enhancing the user experience.

[0151] Although some specific embodiments of the present invention have been described in detail by way of example, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present invention. It should be understood by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the present invention. The scope of the present invention is defined by the appended claims.

Claims

1. A body fluid analyte detection device, characterized in that Comprising: A bottom case; A transmitter for establishing a communication connection with an external device, including a first electrical connection area; A battery for supplying electrical energy to the body fluid analyte detection device; A sensor and a conductive rubber strip mounted on the bottom case, the sensor including an in-vivo part and an in-vitro part, the in-vivo part for piercing the subcutaneous tissue to detect body fluid analyte parameter information; And A tape for pasting the bottom case on the skin surface; Wherein, the conductive rubber strip is a three-dimensional structure with multiple structural surfaces. When the transmitter is assembled on the bottom case, the in-vitro part and the first electrical connection area establish an electrical connection through the adjacent structural surfaces of the conductive rubber strip.

2. The analyte detection device for body fluid according to claim 1, wherein A pit is provided on the bottom case, and the conductive rubber strip and / or the in-vitro part are arranged in the pit.

3. The analyte detection device for body fluid according to claim 1, wherein The conductive rubber strip is a cuboid structure.

4. The analyte detection device for body fluid according to claim 3, wherein, The conductive rubber strip includes conductive areas and insulating areas that are longitudinally spaced apart.

5. The analyte detection device for body fluid according to claim 4, wherein The in-vitro part and the first electrical connection area establish an electrical connection with the conductive areas.

6. The analyte detection device for body fluid according to claim 5, wherein At least a part of the conductive areas that do not establish an electrical connection are covered with an insulating material.

7. The analyte detection device for body fluid according to claim 6, wherein The insulating material is continuously distributed on the adjacent conductive areas.

8. The analyte detection device for body fluid according to claim 6, characterized in that, The insulating material is spaced apart on the adjacent conductive areas.

9. The analyte detection device for body fluid according to claim 1, wherein At least one structural surface of the conductive rubber strip that does not establish an electrical connection is covered with an insulating material.

10. The analyte detection device for body fluid according to claim 5, characterized in that, The first electrical connection area includes at least two metal contacts.

11. The analyte detection device for body fluid according to claim 1, wherein, The bottom case includes at least one first engaging portion, and the transmitter includes at least one second engaging portion. When the transmitter is assembled on the bottom case, the first engaging portion engages with the second engaging portion.

12. The analyte detection device for body fluid according to claim 11, wherein When the bottom case fails due to bending, the first engaging portion and the second engaging portion are decoupled.

13. The analyte detection device for body fluid according to claim 12, wherein, The bottom case includes a crease groove, and the bottom case fails along the crease groove.

14. The analyte detection device for body fluid according to claim 13, wherein The crease groove includes a straight portion and a bent portion.

15. The analyte detection device for body fluid according to claim 14, wherein, The bent portions are distributed at both ends of the straight portion.

16. The analyte detection device for body fluid according to claim 11, wherein, The first engaging portion is distributed on the arc-shaped side wall of the bottom case.

17. The analyte detection device for body fluid according to claim 1, characterized in that, The bottom case includes a battery cavity, and the battery is disposed in the battery cavity.

18. The analyte detection device for body fluid according to claim 17, wherein, The battery cavity includes a cavity shell for serving as the outer shell of the battery.

19. The analyte detection device for body fluid according to claim 17, wherein, The battery cavity includes a separable cavity cover.

20. The analyte detection device for body fluid according to claim 1, wherein, The in-vitro part is bent relative to the in-vivo part.

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