Implantable biological electrode assembly and shell thereof

Abstract

The utility model relates to the technical field of biological information monitoring, and provides an implantable biological electrode assembly and a shell thereof, the implantable biological electrode assembly comprises an upper cover and a bottom shell, the upper cover is clamped with the bottom shell; positioning columns are arranged at the bottom of the upper cover, positioning hole columns are arranged on the upper portion of the bottom shell, and one positioning column is connected with the positioning hole columns in a clamped mode. The positioning column can pass through a positioning hole of a circuit board arranged in the shell so as to fix the circuit board in the shell. When the upper cover and the bottom shell are assembled, primary positioning can be carried out through the long positioning columns, the long positioning columns penetrate through the circuit board and then are assembled in the positioning hole columns, and then the short positioning columns are installed in the positioning through holes of the circuit board respectively, so that the assembling efficiency is improved, and the shell structure is more stable; a liquid drainage channel is formed in the bottom of the shell and communicates with the assembly groove, so that liquid on the skin of the human body is discharged more easily, and the risk of bacterial infection is reduced.

Description

Technical Field

[0001] This utility model relates to the field of bio-information monitoring technology, and in particular to an implantable bioelectrode assembly and its housing. Background Technology

[0002] For people with diabetes, traditional fingertip blood glucose meters have drawbacks such as being invasive, providing limited information, and failing to reflect blood glucose fluctuations or provide early warnings. These limitations no longer meet the needs of some individuals, especially type 1 diabetes patients who require real-time transmission of blood glucose fluctuations and type 2 diabetes patients requiring intensive insulin therapy. Due to the need for continuous blood glucose monitoring, a bioinformatics monitoring device with a guide needle implanted in subcutaneous tissue to measure blood glucose concentration in the tissue fluid is a practical and feasible method for continuous monitoring.

[0003] In the prior art, implantable bioelectrodes are generally in an upright position, which facilitates semi-insertion into human subcutaneous tissue. Implantable bioelectrodes are small in size and require the signal output electrode of the bioelectrode to be fixed by a clamping structure on the circuit board during the production and assembly process, so that the bioelectrode can form a stable electrical connection with the circuit board. At the same time, the connecting section of the bioelectrode is attached with adhesive to fix the bioelectrode in the housing of the bio-information monitoring device. However, in the process of realizing the present invention, the inventors have discovered at least the following problems: due to the small size of the bioelectrode, it is difficult to fix the bioelectrode during the assembly process, causing the bioelectrode to warp and / or bend, resulting in poor contact of the bioelectrode.

[0004] Therefore, how to set the shape of the bioelectrode to fit the component to be connected, so as to improve the connection stability between the bioelectrode and the component, has become an urgent technical problem to be solved. Utility Model Content

[0005] The main objective of this invention is to provide an implantable electrode that addresses the technical problem of improving the connection stability between the bioelectrode and the component to be connected.

[0006] To achieve the above objectives, in a first aspect, the present invention provides a housing for an implantable bioelectrode assembly, comprising:

[0007] The upper cover and the bottom shell are connected together;

[0008] The bottom of the upper cover is provided with a positioning post, and the upper part of the bottom shell is provided with a positioning hole post, and one of the positioning posts is engaged with the positioning hole post.

[0009] The positioning pin can pass through the positioning hole of the circuit board located inside the housing to fix the circuit board inside the housing.

[0010] In some embodiments, the bottom shell is provided with a retaining plate, the retaining plate is provided with an electrode through groove and a guide pin through hole, and the electrode through groove and the guide pin through hole are partially connected;

[0011] The signal output plate of the bioelectrode can be disposed through the electrode through slot, and the sensing electrode strip of the bioelectrode protrudes from the bottom of the card holder.

[0012] The guide pin that houses the sensing electrode is placed at the first guide pin through hole.

[0013] In some embodiments, the bottom of the bottom shell is provided with an annular assembly groove, which surrounds the snap-fit ​​plate; the bottom of the bottom shell is provided with a plurality of drainage channels, which extend from the annular assembly groove toward the outer periphery of the bottom shell.

[0014] In some embodiments, the drainage channel is recessed from the bottom of the bottom shell to form a groove, and the drainage channel is protruded from the top of the bottom shell to form a boss.

[0015] In some embodiments, the distance between adjacent drainage channels is equal.

[0016] In some embodiments, the number of drainage channels is five, with two drainage channels disposed on one side of the first guide pin through hole of the annular assembly groove, and three drainage channels disposed on one side of the electrode through groove of the annular assembly groove.

[0017] In some embodiments, the upper cover is provided with a second guide pin through hole, the second guide pin through hole being positioned corresponding to the first guide pin through hole; the number of positioning pins is three, two of the positioning pins are disposed on one side of the second guide pin through hole, and one positioning pin is disposed on the other side of the second guide pin through hole.

[0018] To achieve the above objectives, in a second aspect, the present invention provides an implantable bioelectrode assembly, including a housing of the implantable bioelectrode assembly as described in the first aspect, and further including: a circuit board.

[0019] The circuit board is inserted between the upper cover and the bottom shell;

[0020] The circuit board is provided with positioning holes, and the positioning pins pass through the positioning holes to fix the circuit board between the top cover and the bottom shell.

[0021] In some embodiments, it also includes bioelectrodes;

[0022] The bioelectrode includes a signal output plate, and the upper part of the signal output plate is provided with a limiting notch and a limiting protrusion;

[0023] The circuit board is provided with an electrode clearance groove, the limiting card protrudes into the electrode clearance groove, and the limiting card abuts against the surface of the circuit board.

[0024] In some embodiments, the bioelectrode further includes a vertical sensing electrode strip and a horizontal connecting segment;

[0025] The signal output piece is connected to the upper part of the connecting section, or the signal output piece is integrally formed with the connecting section;

[0026] The upper part of the sensing electrode strip is connected to the connecting section;

[0027] The signal output chip is disposed through the electrode slot, and the sensing electrode strip protrudes from the bottom of the card slot.

[0028] In the technical solution provided by this utility model, the shell of the implantable bioelectrode assembly is provided with positioning posts and positioning holes. There are at least two positioning posts, one of which is longer than the other. During the assembly of the top cover and bottom shell, the longer positioning post can be used for initial positioning. After passing through the circuit board, the longer positioning post is assembled into the positioning hole, and then the shorter positioning posts are installed into the positioning through holes of the circuit board. This improves assembly efficiency and makes the shell structure more stable. Secondly, the longer positioning post is located near the annular assembly groove, which is used to fix the bioelectrode. When the bioelectrode is implanted, the end of the shell near the annular assembly groove experiences greater force than the end far from it. The longer positioning post and the positioning hole work together to buffer the force on the end of the shell near the annular assembly groove, making the shell structure more stable and less prone to deformation. This prevents the shell from deforming and causing changes in the position of the bioelectrode or affecting the electrical connection stability of the bioelectrode. A drainage channel is provided at the bottom of the shell, which communicates with the assembly groove, making it easier for fluids from the skin to drain, reducing the risk of bacterial infection. Attached Figure Description

[0029] One or more embodiments are illustrated by way of example with reference to the accompanying drawings. These illustrations do not constitute a limitation on the embodiments. Elements having the same reference numerals in the drawings are denoted as similar elements. Unless otherwise stated, the figures in the drawings are not to be limited by scale.

[0030] Figure 1 This is a schematic diagram of the structure of an implantable bioelectrode assembly disclosed in one or more embodiments of this application;

[0031] Figure 2 This is an exploded view of the structure of an implantable bioelectrode assembly disclosed in one or more embodiments of this application.

[0032] Figure 3 This is a schematic diagram of the structure of the upper cover of the implantable bioelectrode assembly and its housing disclosed in one or more embodiments of this application;

[0033] Figure 4 This is a schematic diagram of the bottom shell structure of the implantable bioelectrode assembly and its housing disclosed in one or more embodiments of this application;

[0034] Figure 5 This is a schematic diagram of the bottom shell structure of the implantable bioelectrode assembly and its housing disclosed in one or more embodiments of this application;

[0035] Figure 6 for Figure 12 An enlarged view of point C;

[0036] Figure 7 This is a schematic diagram of the structure of an implantable bioelectrode disclosed in one or more embodiments of this application;

[0037] Figure 8 This is a schematic diagram of the structure of an implantable bioelectrode disclosed in one or more embodiments of this application;

[0038] Figure 9 This is a schematic diagram of the structure of an implantable bioelectrode disclosed in one or more embodiments of this application;

[0039] Figure 10 This is a schematic diagram of the connection between an implantable bioelectrode and a circuit board as disclosed in one or more embodiments of this application;

[0040] Figure 11 for Figure 4 Enlarged view of point A in the middle;

[0041] Figure 12 This is a schematic diagram of the connection between an implantable bioelectrode and a circuit board as disclosed in one or more embodiments of this application;

[0042] Figure 13 for Figure 6 Enlarged view of point B in the middle;

[0043] Figure 14 This is a schematic diagram of the circuit board structure of an implantable bioelectrode assembly disclosed in one or more embodiments of this application;

[0044] Figure 15 This is a schematic diagram of the structure of an implantable bioelectrode, circuit board, and guide needle after assembly, as disclosed in one or more embodiments of this application.

[0045] In the diagram: 1-Sensing electrode strip; 2-Signal output piece; 21-Limiting notch; 22-Limiting protrusion; 23-First signal output electrode; 24-Second signal output electrode; 25-Third signal output electrode; 3-Connecting section; 31-Limiting bend; 311-Limiting surface; 32-Flattening part; 33-Limiting protrusion; 01-Bioelectrode; 02-Circuit board; 021-Electrode clearance groove; 022-Electrode clamping structure; 023-Positioning through hole; 03-Guide pin; 04-Top cover; 041-Positioning post; 042-Second guide pin through hole; 05-Bottom shell; 051-Card receiving plate; 0511-Electrode through groove; 0512-First guide pin through hole; 0513-Protrusion receiving groove; 052-Annular assembly groove; 053-Drainage channel; 054-Positioning hole post; 06-Electrode protective cover. Detailed Implementation

[0046] To facilitate understanding of this utility model, a more detailed description is provided below with reference to the accompanying drawings and specific embodiments. It should be noted that when an element is described as being "fixed to" another element, it can be directly on the other element, or one or more intermediate elements may exist between them. When an element is described as being "connected to" another element, it can be directly connected to the other element, or one or more intermediate elements may exist between them. The terms "vertical," "horizontal," "left," "right," "inner," "outer," and similar expressions used in this specification are for illustrative purposes only. In the description of this utility model, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating relative importance or implying the number of indicated technical features. Thus, unless otherwise stated, features defined as "first" or "second" may explicitly or implicitly include one or more of that feature; "multiple" means two or more. The term "comprising" and any variations thereof mean non-exclusive inclusion, where one or more other features, integers, steps, operations, units, components, and / or combinations thereof may be present or added.

[0047] Furthermore, unless otherwise expressly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections via an intermediate medium, or internal communication between two components. All technical and scientific terms used in this specification have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used in this specification includes any and all combinations of one or more of the associated listed items.

[0048] Furthermore, the technical features involved in the different embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other. Example

[0049] To achieve the above objectives, this utility model provides an implantable bioelectrode, please refer to the appendix. Figure 1-15 , including Figure 1 This is a schematic diagram of the structure of an implantable bioelectrode. Specifically,

[0050] Includes: a vertical sensing electrode strip 1, a signal output piece 2, and a horizontal connecting section 3;

[0051] The signal output piece 2 is connected to the upper part of the connecting section 3, or the signal output piece 2 and the connecting section 3 are integrally set;

[0052] The upper part of the signal output chip 2 is provided with a limit card slot 21 and a limit card protrusion 22. The limit card protrusion 22 can be inserted into the limit slot of the external circuit board and can abut against the surface of the external circuit board.

[0053] The upper part of the sensing electrode strip 1 is connected to the connecting section 3.

[0054] The sensing electrode strip 1 is electrically connected to the signal output piece 2 through the connecting section 3. Specifically, conductive lines are provided on the surface of the connecting section 3 to facilitate the conductivity of the sensing electrode strip 1 and the signal output piece 2. Alternatively, the sensing electrode strip 1, the connecting section 3, and the signal output piece 2 are all made of conductive materials.

[0055] Specifically, the limiting card notch 21 and the limiting card protrusion 22 are stepped in the axial direction, and the axial height of the top edge of the limiting card protrusion 22 is higher than the axial height of the bottom edge of the limiting card notch 21.

[0056] In the axial direction, the distance between the limiting card notch 21 and the connecting segment 3 is less than the distance between the limiting card protrusion 22 and the connecting segment 3.

[0057] During the production and assembly process, the signal output piece 2 is inserted into the electrode clamping structure 022 provided on the circuit board 02, so that the signal output piece 2 is fixed in the electrode clamping structure 022. The electrode clamping structure 022 is made of conductive material and can form an electrical connection with the contacts on the surface of the signal output piece 2, so that the circuit board 02 and the signal output piece 2 are electrically connected.

[0058] The electrode clamping structure 022 is used to insert the signal output piece 2 into the gap. The position of the axial projection on the circuit board 02 is provided with an electrode clearance groove 021. The electrode clearance groove 021 is used to accommodate and fix the limiting protrusion 22. The limiting protrusion 22 passes through the gap between the electrode clamping structures 022 and is inserted into the electrode clearance groove 021. The electrode clearance groove 021 restricts the axial movement of the limiting protrusion 22, so that the connection position between the contact point on the signal output piece 2 and the electrode clamping structure 022 is more accurate. By improving the reliability of the electrical connection between the signal output piece 2 and the electrode clamping structure 022, the reliability of the electrical connection between the signal output piece 2 and the circuit board 02 is improved.

[0059] Meanwhile, the limiting card protrusion 22 is inserted into the electrode clamping structure 022, which reduces the displacement and deformation of the signal output piece 2 caused by the dragging and pulling of the sensing electrode strip 1 and / or connecting section 3 during the assembly of the bioelectrode 01 with other components by workers / automated assembly, improves the electrical connection reliability between the signal output piece 2 and the circuit board 02, and prevents the signal output piece 2 from being over-assembled.

[0060] During the production and assembly process, when the limiting card protrusion 22 is inserted into the electrode clearance groove 021 of the circuit board 02 to be connected, the top edge of the limiting card notch 21 is placed on the surface of the circuit board 02 to be connected. The limiting card notch 21 restricts the excessive extension of the limiting card protrusion 22 into the electrode clearance groove 021 of the circuit board 02, thereby improving the connection stability between the limiting card protrusion 22 and the electrode clamping structure 022. At the same time, the shape and position of the limiting card protrusion 22 and the limiting card notch 21 have a limiting and fixing effect on the signal output piece 2, thereby improving the reliability and convenience of assembling the signal output piece 2. Meanwhile, the contact area between the limiting card protrusion 22 and the limiting card notch 21 and the circuit board 02 is larger than the rectangular contact area of ​​the signal output piece 2 in the prior art. Under the same force, the pressure on the signal output piece 2 from the circuit board 02 is relatively smaller, reducing the degree of deformation of the signal output piece 2 and reducing the probability of damage to the signal output piece 2.

[0061] The electrode clearance groove 021 described in the above embodiments can be a clearance groove or a clearance through groove. Its main function is to provide a certain clearance space for the limiting protrusion 22 in the axial direction, preventing the signal output piece 2 from bending or warping against the circuit board 02, which would lead to poor contact between the signal output piece 2 and the electrode clamping structure 022. With the electrode clearance groove 021 provided, the limiting protrusion 22 has a certain accommodating clearance space, so that the signal output piece 2 will not have too much deformation, thereby increasing the contact area between the signal output piece 2 and the electrode clamping structure 022, preventing poor contact between the spring and the signal output electrode, and improving contact reliability; another embodiment In this embodiment, in addition to the functions described above, the electrode clearance groove 021 also has an auxiliary positioning function, which restricts the axial movement and positioning of the limiting protrusion 22. When the limiting protrusion 22 is inserted into the electrode clearance groove 021, the top edge of the limiting protrusion 22 contacts the bottom of the electrode clearance groove 021, thereby achieving the positioning and limiting functions. In another embodiment, the limiting protrusion 22 is inserted into the electrical limit through groove, and the top edge of the limiting protrusion 22 contacts the housing that houses the circuit board 02, thereby achieving the positioning and limiting functions, preventing the signal output piece 2 from being over-assembled, and ensuring that the three signal output electrodes are positioned in the designated positions, thereby improving assembly efficiency and accuracy.

[0062] In some embodiments, a first signal output electrode 23 is provided on one side of the signal output chip 2;

[0063] The area of ​​the first signal output electrode 23 is 80% to 100% of the area of ​​the signal output chip 2.

[0064] In some embodiments, the lateral length of the first signal output electrode 23 is set to 80% to 100% of the lateral length of the signal output piece 2.

[0065] Specifically, due to possible deviations in the actual production process, the area of ​​the first signal output electrode 23 can be 80%, 90%, or 100% of the area of ​​the signal output piece 2 in the lateral direction. When the area of ​​the first signal output electrode 23 is 100% of the area of ​​the signal output piece 2 in the lateral direction, the first signal output electrode 23 is in full contact with the electrode clamping structure 022 when the signal output piece 2 is inserted into the electrode clamping structure 022, which improves the reliability of the electrical connection between the signal output piece 2 and the circuit board 02.

[0066] In some embodiments, the length of the first signal output electrode 23 in the lateral direction is set to 80% to 100% of the length of the signal output piece 2 in the radial direction. Specifically, the signal output piece 2 is inserted into the electrode clearance groove 021 from the vertical direction. The shape of the first signal output electrode 23 is a rectangle extending in the lateral direction. The first signal output electrode 23 extends in the lateral direction, and the insertion direction of the signal output piece 2 extends in the vertical direction, which improves the contact reliability between the first signal output electrode 23 and the electrode clamping structure 022.

[0067] In some embodiments, a second signal output electrode 24 and a third output electrode 25 are provided on the other side of the signal output chip 2;

[0068] The first signal output electrode 23, the second signal output electrode 24, and the third signal output electrode 25 are respectively one of the working electrode, the counter electrode, and the reference electrode. Specifically, the first signal output electrode 23 is the working electrode, the second signal output electrode 24 is the counter electrode, and the third signal output electrode 25 is the reference electrode. In some embodiments, the electrode types of the first signal output electrode 23, the second signal output electrode 24, and the third signal output electrode 25 may be the same or different, and the electrode types may be customized according to the type of biological signal being monitored and the monitoring efficiency.

[0069] The signal output plate 2 may not have an electrode contact on the other side of the radial extension direction, or it may only have a second signal output electrode 24, or only a third signal output electrode 25, or both the second signal output electrode 24 and the third signal output electrode 25.

[0070] The signal output chip 2 is provided with at least one type of electrode, including at least one of the following electrode types: working electrode, counter electrode, and reference electrode.

[0071] In some embodiments, the second signal output electrode 24 and the third signal output electrode 25 are respectively located at both ends of one side of the signal output sheet 2 in the radial direction, and the second signal output electrode 24 and the third signal output electrode 25 do not overlap with each other;

[0072] The area of ​​the first signal output electrode 23 is greater than or equal to the sum of the areas of the second signal output electrode 24 and the third signal output electrode 25.

[0073] In some embodiments, the end of the connecting segment 3 connected to the sensing electrode strip 1 is bent upward to form a limiting bend 31, and a bridging joint is formed at the bottom of the limiting bend 31, allowing the sensing electrode strip 1 and the connecting segment 3 to have space for elastic deformation. Specifically,

[0074] In some embodiments, a limiting surface 311 is provided on a portion of the top surface of the limiting bend 31. The limiting surface 311 is straight and can abut against the inside of the external guide pin.

[0075] Another part of the top surface of the limiting bending part 31 bends downward into an arc shape.

[0076] Specifically, the external guide needle 03 is provided with a grooved needle. The grooved needle can be hollow in shape, such as V-shape, U-shape, or W-shape. The grooved needle facilitates the assembly of the sensing electrode strip 1 into the guide needle 03, so that the guide needle 03 drives the sensing electrode strip 1 to be implanted into the human skin simultaneously. At least part of the limiting bending part 31 and the sensing electrode strip 1 are placed in the grooved needle. The limiting surface 311 is generally flat. Specifically, the limiting surface 311 is adapted to the top of the grooved needle of the guide needle 03. The limiting surface 311 is close to the top of the grooved needle, which plays a role in fixing the implantable bioelectrode 01 and ensuring that the sensing electrode strip 1 does not deviate from the grooved needle. In practice, the limiting bending part 31 is subjected to a small force from the top of the grooved needle, but the force is not large enough to cause the limiting bending part 31 to shift or deform, thereby causing the assembly failure of the implantable bioelectrode 01 and the guide needle 03, thus improving the implantation reliability of the implantable bioelectrode 01.

[0077] In some embodiments, the limiting surface 311 is arranged parallel to the bottom surface of the connecting segment 3. Specifically, the limiting surface 311 abuts against the inside of the guide needle. The parallelism between the limiting surface 311 and the bottom surface of the connecting segment 3 makes the connection between the connecting segment 3 and the guide needle and the housing of the bioelectrode assembly tighter, reduces gaps, and also has the function of positioning and limiting, improving connection reliability and making assembly simpler.

[0078] In some embodiments, the lower part of the connecting segment 3 is a flat segment 32, which is connected to one end of the limiting bending portion 31 and the bottom of the signal output piece 2. The flat segment 32, the bending portion 31 and the signal output piece 2 are integrally arranged. Their integral arrangement makes the overall cross-section of the bioelectrode 01 less than that of the three separate structures, thereby facilitating the sealing of the assembly and implantation and improving the contact reliability. If the three are arranged separately, more cross-sections are likely to be generated, affecting the sealing, contact reliability and assembly difficulty, increasing production costs, and also affecting the sealing, allowing tissue fluid to easily enter the component, causing a short circuit in the internal circuit.

[0079] The flattening section 32 is continuously flat. In the prior art, the bottom of the connecting section 3 is provided with a filling hole for dispensing process to fix the connecting section 3 in the housing of the bioelectrode assembly. In this embodiment, the bottom of the flattening section 32 is basically flat, and the dispensing can directly cover the flattening section 32, reducing the cross-section of the connecting section 3 of the bioelectrode 01, making the connection reliability between the bioelectrode 01 and the biosensor housing higher.

[0080] In addition, the flat section 32 is designed to facilitate the sealing of the implanted bioelectrode after assembly with the component. During use, the part of the connecting section 3 at the bottom of the signal output piece 2 (including the flat section 32) will be completely covered by glue to achieve the effect of sealing and fixing, while also allowing sufficient space for the elastic deformation of the sensing electrode strip 1.

[0081] In some embodiments, a limiting protrusion 33 extends from one end of the connecting segment 3 away from the sensing electrode strip 1. The limiting protrusion 33 extends away from the sensing electrode strip 1. The limiting protrusion 33 can be engaged in the housing containing the implantable bioelectrode. Specifically, the limiting protrusion 33 is used to insert into the limiting groove of the housing of the implantable bioelectrode to further fix the connecting segment 3 in the housing of the implantable bioelectrode and further improve the connection reliability between the bioelectrode 01 and the housing of the implantable bioelectrode.

[0082] In some embodiments, the angle formed by the extension line of the bottom edge of the flat section 32 and the extension line of the outer edge of the sensing electrode strip 1 is α, where 90° < α ≤ 95°. Specifically, 90° < α ≤ 95°; the outer edge refers to the extension line of the side of the sensing electrode strip 1 away from the signal output plate 2, where α can be 90° or 95°. In some embodiments, α is 93° ± 2°. If the α angle is too small or too large, a portion of the sensing electrode strip 1 will protrude relative to the grooved needle, and the sensing electrode strip 1 cannot be completely contained within the grooved needle of the guide needle 03. This results in the sensing electrode strip 1 failing to penetrate the human skin with the guide needle 03, leading to implantation failure of the sensing electrode strip 1 of the bioelectrode 01. Another situation where the α angle is too small or too large is that even if the sensing electrode strip 1 penetrates the human skin with the guide needle 03, a small or large α angle may result in a poor user experience, and the user may experience a "pickling" sensation, failing to achieve a state of sensory numbness. Example

[0083] To achieve the above objectives, please refer to the appendix. Figure 1-15 , Figure 14 This utility model provides a housing for an implantable bioelectrode assembly, specifically comprising:

[0084] Top cover 04 and bottom shell 05, the top cover 04 is snapped into the bottom shell 05;

[0085] The bottom of the upper cover 04 is provided with a positioning post 041, and the upper part of the bottom shell 05 is provided with a positioning hole post 054. One positioning post 041 is engaged with the positioning hole post 054.

[0086] The positioning post 041 can pass through the positioning hole 023 of the circuit board 02 located inside the housing to fix the circuit board 02 inside the housing.

[0087] Specifically, the bottom of the upper cover 04 is provided with several positioning posts 041, which are located within the periphery of the upper cover 04.

[0088] The number of positioning posts 041 is at least two, wherein the length of at least one positioning post 041 is greater than the thickness of the upper cover 04. In some embodiments, the number of positioning posts 041 can be two, wherein the two positioning posts 041 are symmetrically arranged and respectively disposed on both sides of the bottom of the upper cover 04, thereby improving the assembly stability of the upper cover 04 and the bottom shell 05; the number of positioning posts 041 can also be three, wherein the three positioning posts are arranged in an equilateral triangle and respectively disposed on the periphery of the bottom of the upper cover 04, with the distance between two adjacent positioning posts being equal, further improving the assembly stability of the upper cover 04 and the bottom shell 05.

[0089] In some embodiments, the circuit board 02 is provided with a positioning hole 023, and the positioning post 041 passes through the positioning hole 023 to fix the circuit board 02 between the upper cover 04 and the bottom shell 05, thereby improving the stability of the housing and internal structure of the implantable bioelectrode assembly.

[0090] In some embodiments, the positioning post 054 serves to fix the positioning post 041. The positioning post 054 is located on the side of the bottom shell 05 near the receiving plate 051. When the guide needle 03 is pushed and the bioelectrode 01 is implanted into the human skin, the force on the side of the bottom shell 05 near the receiving plate 051 is greater than the force on the side of the bottom shell 05 away from the receiving plate 051. Since the positioning post 054 extends out of the upper surface of the bottom shell 05, it has a certain buffering effect on the force of the guide needle 03 on the side of the bottom shell 05 near the receiving plate 051, so as to avoid the force on both sides being too uneven, which would lead to the failure of implantation of the guide needle 03 and the bioelectrode 01.

[0091] In some embodiments, at least one positioning post 041 with a length greater than the thickness of the top cover 04 passes through the positioning hole post 054. Specifically, the positioning hole post 054 is used to accommodate and fix the longer positioning post 041, making it easier to assemble the top cover 04 and the bottom shell 05. Secondly, it improves the assembly stability of the bottom shell 05 on one side of the annular assembly groove 052.

[0092] In some embodiments, the bottom shell 05 is provided with a retaining plate 051, the retaining plate 051 is provided with an electrode through groove 0511 and a guide needle through hole 0512, and the electrode through groove 0511 and the guide needle through hole 0512 are partially connected.

[0093] The signal output piece 2 of the bioelectrode 01 can pass through the electrode through slot 0511 and the sensing electrode strip 1 of the bioelectrode 01 protrudes from the bottom of the card receiving plate 051.

[0094] The guide pin 03, which houses the sensing electrode, is inserted into the guide pin through hole 0512.

[0095] In some embodiments, the bottom of the bottom shell 05 is provided with an annular assembly groove 052, which surrounds the snap-fit ​​plate 051; the bottom of the bottom shell 05 is provided with a plurality of drainage channels 053, which extend from the annular assembly groove 052 toward the outer periphery of the bottom shell 05 and extend to the outer periphery.

[0096] In some embodiments, the retaining plate 051 and the annular mounting groove 052 in the bottom shell 05 are located on one side slightly closer to the periphery of the bottom shell 05. This is related to factors such as the direction of the force pushing the guide needle 03 in the implantable bioelectrode assembly into the body and the internal structure of the implantation device. There are three positioning posts 041. Two of the three positioning posts 041 are located on the side of the bottom shell 05 closer to the annular mounting groove 052, and the other positioning post is located on the side away from the annular mounting groove 052. Since the retaining plate 051 and the annular mounting groove 052 in the bottom shell 05 are not located at the midpoint of the bottom shell 05, the force received on this side of the bottom shell 05 is relatively larger than that on the other side, requiring more positioning posts 041 to improve stability.

[0097] In some embodiments, one of the two positioning posts 041 near the annular assembly groove 052 is longer than the other, which makes it easier to assemble the top cover 04 and the bottom shell 05, and improves the assembly stability of the bottom shell 05 on the side of the annular assembly groove 052.

[0098] In some embodiments, the snap-fit ​​plate 051 and the annular assembly groove 052 in the bottom shell 05 may also be located at the midpoint of the bottom shell 05, and the positions of the snap-fit ​​plate 051 and the annular assembly groove 052 can be designed according to the actual production needs.

[0099] In some embodiments, the drainage channel 053 is recessed upward from the bottom of the base shell 05 to form a groove, and protrudes upward from the top of the base shell 05 to form a boss. Specifically, the drainage channel 053 has the function of drainage, allowing sweat secreted by the human skin after the bioelectrode component is partially implanted into the human body to be discharged through the drainage channel 053. At the same time, the drainage channel 053 also serves as a reinforcing rib of the annular mounting groove 052 in the base shell 05, and has the function of fixing the annular mounting groove 052 and the base shell 05.

[0100] In some embodiments, the distance between adjacent drainage channels 053 is equal, further improving the stability of the bottom shell 05 structure.

[0101] In some embodiments, the number of drainage channels 053 is five. Two drainage channels 053 are located on one side of the guide pin through hole 0512 of the annular assembly groove 052, and three drainage channels 053 are located on one side of the electrode through groove 0511 of the annular assembly groove 052. Specifically, since the annular assembly groove 052 is located on the side of the bottom shell 05 closer to the periphery, and not at the exact center, the number of drainage channels 053 on the side of the annular assembly groove 052 closer to the periphery of the bottom shell 05 is three, and the number of drainage channels 053 on the side of the annular assembly groove 052 further away from the periphery of the bottom shell 05 is two, further improving the efficiency of sweat removal.

[0102] In some embodiments, the upper cover 04 is provided with a second guide pin through hole 042, the second guide pin through hole 042 being positioned corresponding to the first guide pin through hole 0512; the number of positioning pins 041 is three, two positioning pins 041 are provided on one side of the second guide pin through hole 042, and one positioning pin 041 is provided on the other side of the second guide pin through hole 042.

[0103] To achieve the above objectives, please refer to the appendix. Figure 1-15 , Figure 15 An implantable bioelectrode assembly is provided for this embodiment of the present invention. Specifically, it includes a housing of the implantable bioelectrode assembly as described in the above embodiment, and also includes a circuit board 02.

[0104] Circuit board 02 is placed between the top cover 04 and the bottom cover 05;

[0105] The circuit board 02 is provided with a positioning hole 023, and the positioning post 041 passes through the positioning hole 023 to fix the circuit board 02 between the upper cover 04 and the bottom shell 05.

[0106] In some embodiments, a bioelectrode 01 is also included;

[0107] The bioelectrode 01 includes a signal output piece 2, and the upper part of the signal output piece 2 is provided with a limiting notch 21 and a limiting protrusion 22;

[0108] The circuit board 02 is provided with an electrode clearance groove 021, the limiting card protrusion 22 is inserted into the electrode clearance groove 021, and the limiting card notch 21 abuts against the surface of the circuit board 02.

[0109] In some embodiments, the bioelectrode 01 further includes a vertical sensing electrode strip 1 and a horizontal connecting segment 3;

[0110] The signal output piece 2 is connected to the upper part of the connecting section 3, or the signal output piece 2 and the connecting section 3 are integrally set;

[0111] The upper part of the sensing electrode strip 1 is connected to the connecting section 3;

[0112] The signal output chip 2 is set through the electrode through slot 0511, and the sensing electrode strip 1 is set at the bottom of the card receiving plate 051.

[0113] In some embodiments, an electrode protective cover 06 is also included. The electrode protective cover 06 is disposed at the lower part of the bottom shell 05. The electrode protective cover 06 is snapped into the annular mounting groove 0514 and seals the sensing electrode strip 1 of the bioelectrode 01 inside the electrode protective cover 06.

[0114] The above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Under the concept of this utility model, the technical features of the above embodiments or different embodiments can also be combined, the steps can be implemented in any order, and there are many other variations of different aspects of this utility model as described above. For the sake of brevity, they are not provided in detail. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A housing for an implantable bioelectrode assembly, characterized in that, include: The upper cover (04) and the bottom shell (05) are connected to the bottom shell (05). The bottom of the upper cover (04) is provided with a positioning post (041), and the upper part of the bottom shell (05) is provided with a positioning hole post (054). One of the positioning posts (041) is engaged with the positioning hole post (054). The positioning post (041) can pass through the positioning hole (023) of the circuit board (02) provided in the housing to fix the circuit board (02) in the housing.

2. The housing of the implantable bioelectrode assembly as described in claim 1, characterized in that, The bottom shell (05) is provided with a retaining plate (051), the retaining plate (051) is provided with an electrode through groove (0511) and a first guide needle through hole (0512), and the electrode through groove (0511) and the first guide needle through hole (0512) are partially connected; The signal output piece (2) of the bioelectrode (01) can be disposed through the electrode through slot (0511), and the sensing electrode strip (1) of the bioelectrode (01) protrudes from the bottom of the card plate (051). The guide pin (03) that houses the sensing electrode is placed at the first guide pin through hole (0512).

3. The housing of the implantable bioelectrode assembly as described in claim 2, characterized in that, The bottom of the bottom shell (05) is provided with an annular assembly groove (052), which surrounds the snap-fit ​​plate (051); the bottom of the bottom shell (05) is provided with a plurality of drainage channels (053), which extend from the annular assembly groove (052) toward the outer periphery of the bottom shell (05) and extend to the outer periphery.

4. The housing of the implantable bioelectrode assembly as described in claim 3, characterized in that, The drain channel (053) is recessed upward from the bottom of the bottom shell (05) to form a groove, and the drain channel (053) is protruded from the upper part of the bottom shell (05) to form a boss.

5. The housing of the implantable bioelectrode assembly as described in claim 4, characterized in that, The distance between adjacent drainage channels (053) is equal.

6. The housing of the implantable bioelectrode assembly as described in claim 5, characterized in that, The number of drainage channels (053) is five. Two of the drainage channels (053) are located on one side of the first guide pin through hole (0512) of the annular assembly groove (052), and three of the drainage channels (053) are located on one side of the electrode through groove (0511) of the annular assembly groove (052).

7. The housing of the implantable bioelectrode assembly as described in claim 2, characterized in that, The upper cover (04) is provided with a second guide pin through hole (042), the second guide pin through hole (042) is located in a position corresponding to the first guide pin through hole (0512); the number of positioning pins (041) is three, two positioning pins (041) are provided on one side of the second guide pin through hole (042), and one positioning pin (041) is provided on the other side of the second guide pin through hole (042).

8. An implantable bioelectrode assembly, characterized in that, The housing of the implantable bioelectrode assembly as described in any one of claims 1-7 is further comprising a circuit board (02). The circuit board (02) is inserted between the upper cover (04) and the bottom shell (05); The circuit board (02) is provided with a positioning hole (023), and the positioning post (041) passes through the positioning hole (023) to fix the circuit board (02) between the upper cover (04) and the bottom shell (05).

9. The implantable bioelectrode assembly as described in claim 8, characterized in that, It also includes bioelectrodes (01); The bioelectrode (01) includes a signal output piece (2), and the upper part of the signal output piece (2) is provided with a limiting notch (21) and a limiting protrusion (22). The circuit board (02) is provided with an electrode clearance groove (021), the limiting card protrusion (22) is inserted into the electrode clearance groove (021), and the limiting card notch (21) abuts against the surface of the circuit board (02).

10. The implantable bioelectrode assembly as described in claim 9, characterized in that, The bioelectrode (01) also includes a vertical sensing electrode strip (1) and a horizontal connecting section (3). The signal output piece (2) is connected to the upper part of the connecting section (3), or the signal output piece (2) and the connecting section (3) are integrally formed; The upper part of the sensing electrode strip (1) is connected to the connecting section (3); The signal output chip (2) is disposed through the electrode through slot (0511), and the sensing electrode strip (1) protrudes from the bottom of the card plate (051).

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