Elastic electrical connector for an active implantable medical device and its connection structure

Abstract

The present invention provides an elastic electrical connector for an active implantable medical device and its connection structure. The elastic electrical connector includes: a first connection section located at one end, which is a straight section and is adapted to be electrically connected to a rigid circuit board in the active implantable medical device; an elastic deformation section located at the other end, which has an arc-shaped structure formed by bending and a clamping structure. The arc-shaped structure is adapted to be electrically connected to a coil in the active implantable medical device. The elastic connector of the present invention can rigidly connect the rigid circuit board and the elastic connector through the first connection section to the rigid circuit board in the active implantable medical device. After welding of the rigid connection, compared with the surface mount connection of the previous flexible connection, it has the advantages of being more convenient to disassemble and not being easily damaged after disassembly. Therefore, multiple disassembly and assembly of the active implantable medical device can be achieved, which is convenient for the maintenance of the active implantable medical device.

Description

Technical Field

[0001] The present invention relates to the technical field of implantable medical devices, and particularly to an elastic electrical connector and a connection structure thereof for an active implantable medical device. Background Art

[0002] A human active implantable medical device (AIMD) is a medical device installed inside a user's body. This device has a battery and a rigid circuit board (equipped with components such as sensors and chips) inside. The AIMD relies on set programs and operating parameters to achieve corresponding therapies, and these operating parameters can be set differently according to the user's disease conditions. Because the causes and conditions of users' diseases are different, generally, active implantable medical devices installed in different users have different operating states, which are reflected in many aspects such as the battery voltage, operating time, power, magnitude of current, and frequency of the active implant medical instrument. To ensure the stability, safety, and long-term reliability of the implanted part, it is usually necessary to conduct a comprehensive test on the implanted part, especially to conduct a comprehensive inspection on the rigid circuit board of the implanted part.

[0003] In existing active implant devices, in order to pursue the minimization of the volume of the implant device, the rigid circuit board and the coil are commonly connected by a flexible connecting plate. There are two assembly methods. One is to first connect the coil and the flexible connecting plate into one body, test the rigid circuit board separately, and then connect the flexible connecting plate to the rigid circuit board after the rigid circuit board test is completed. The other is to first connect the rigid circuit board and the flexible connecting plate, test the rigid circuit board and the flexible connecting plate together, and then connect the flexible connecting plate to the coil.

[0004] No matter which of the above connection processes is adopted, it is inevitable to use a flexible connecting plate. After welding and connecting the flexible connecting plate to the coil or the rigid circuit board and then fixing it with glue, the flexible connecting plate is not easy to disassemble, and it is easy to cause damage to the entire device after disassembly if the inspection is unqualified. In addition, after the flexible connecting plate is welded, in order to ensure the welding quality, the storage time and storage conditions have relatively high requirements. Summary of the Invention

[0005] Therefore, in order to make the active implantable device easy to be disassembled and assembled multiple times, the present invention provides an elastic connector for replacing the connection of the flexible connecting plate in the active implantable device.

[0006] The present invention also provides a connection structure for connecting the above elastic connector in an active implantable medical device.

[0007] The elastic connector of the active implant medical device provided by the present invention includes:

[0008] The first connection segment, located at one end, is a straight segment and is suitable for electrical connection with a rigid circuit board in an active implantable medical device;

[0009] The elastic deformation segment, located at the other end, has an arc-shaped structure and a clamping structure formed by bending. The arc-shaped structure is suitable for electrical connection with a coil in an active implantable medical device.

[0010] As a preferred solution, the arc-shaped structure is perpendicular to the first connection segment.

[0011] As a preferred solution, the arc-shaped structure extends in the direction of the coil in the active implantable medical device.

[0012] As a preferred solution, the clamping structure has a perforated segment parallel to the first connection segment and a clamping segment parallel to the arc-shaped structure.

[0013] As a preferred solution, the extending direction of the clamping segment is the same as that of the arc-shaped structure.

[0014] The connection structure of the elastic connector of the active implantable medical device provided by the present invention includes:

[0015] Connection holes are provided on the frame of the active implantable medical device. There are two connection holes arranged side by side. One of them is used to pass through the first connection segment of the elastic connector described in any one of the above solutions; the other connection hole is used for clamping and positioning the elastic connector.

[0016] The technical solution of the present invention has the following advantages:

[0017] 1. For the elastic connector provided by the present invention, through the first connection segment and the rigid circuit board in the active implantable medical device, the rigid connection between the rigid circuit board and the elastic connector can be realized. After the rigid connection is welded, compared with the previous surface-mount connection of flexible connection, it has the advantages of being more convenient to disassemble and not being easily damaged after disassembly. Therefore, the active implantable medical device can be disassembled and assembled multiple times, which is convenient for the maintenance of the active implantable medical device.

[0018] 2. For the elastic connector provided by the present invention, the elastic deformation segment located at the upper end can be inserted into the connection hole of the frame through elastic deformation, and then through elastic recovery, the elastic connector and the frame are clamped and fixed. By setting the elastic connector and the frame as a whole, the overall installation of the elastic connector and the frame is convenient.

[0019] 3. For the elastic connector provided by the present invention, the arc-shaped structure located at the upper end is used for rigid connection with the coil, so it is convenient for multiple disassembly and assembly and is not easily damaged to the coil.

[0020] 4. The elastic connecting member provided by the present invention has an arc structure extending towards the coil in the active implantable medical device, which can facilitate the connection with the coil and at the same time perform snap-fitting positioning on the elastic connecting member from above.

[0021] 5. The elastic connecting member provided by the present invention has a snap-fitting section of the snap-fitting structure extending in the direction of the arc structure, which can cooperate with the arc structure to form better snap-fitting and fixation.

[0022] 6. The connection structure of the elastic connecting member of the active implantable medical device provided by the present invention has two juxtaposed connection holes. After inserting the elastic connecting member into the connection holes, the elastic connecting member can be temporarily snap-fitted and fixed in cooperation with the structure of the elastic connecting member; then, final fixation can be performed by methods such as dispensing glue, hot melting or ultrasonic waves, so that the elastic connecting member and the frame can be formed into a whole; before final fixation, through temporary snap-fitting and fixation, it is convenient to perform dispensing glue, hot melting or ultrasonic waves between the elastic connecting member and the connection holes. Or, in the temporarily fixed state, experimental tests can be carried out, and after passing the tests, final fixation can be performed, thereby reducing the disassembly and assembly time cost. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required to be used in the description of the specific embodiments or the prior art. Obviously, the following drawings are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0024] Figure 1 FIG. is an exploded perspective view of the three-dimensional structure of the active implantable medical device.

[0025] Figure 2 FIG. is Figure 1 a perspective view of the assembled three-dimensional structure of the exploded view.

[0026] Figure 3 FIG. is a perspective view of the three-dimensional structure of the frame.

[0027] Figure 4 FIG. is a perspective view of the three-dimensional structure of the frame after being connected to the coil and the rigid connecting member respectively.

[0028] Figure 5 FIG. is Figure 3 a perspective view of the three-dimensional structure of the frame from the bottom view angle of

[0029] Figure 6 FIG. is a perspective view of the three-dimensional structure of the rigid connecting member.

[0030] Figure 7 FIG. is Figure 4 a perspective view of the three-dimensional structure of the frame from the bottom view angle of

[0031] Figure 8 for Figure 7 Magnified view of area A.

[0032] Figure 9 It is a three-dimensional structural exploded diagram of the shell assembly.

[0033] Figure 10 It is a front view of a rigid connector of one embodiment.

[0034] Figure 11 for Figure 10 Schematic diagram of the three-dimensional structure of the rigid connector.

[0035] Figure 12 for Figure 10 Schematic diagram of the connection structure between the rigid connector and the frame shown.

[0036] Figure 13 for Figure 12 Magnified view of area B.

[0037] Figure 14 It is a front view of a rigid connector according to another embodiment.

[0038] Figure 15 for Figure 14 Schematic diagram of the three-dimensional structure of the rigid connector.

[0039] Figure 16 for Figure 14 Schematic diagram of the connection structure between the rigid connector and the frame shown.

[0040] Figure 17 for Figure 16 Magnified view of area C.

[0041] Figure 18 Schematic diagram of the connection structure between the rigid connector and the frame in one embodiment.

[0042] Figure 19 for Figure 18 Schematic diagram of the three-dimensional structure from an upward perspective.

[0043] Description of reference numerals:

[0044] 1. First receiving groove; 2. Second receiving groove; 3. Rigid circuit board; 4. Coil; 5. Rigid connecting member; 6. Insertion hole; 7. First connecting section; 8. Bent section; 9. Second connecting section; 10. Upper cover; 11. Frame; 12. Lower cover; 13. Connecting hole; 14. Positioning block; 15. Outer sleeve; 16. Lining; 17. Snap; 18. First snap hole; 19. Second snap hole; 20. Battery receiving hole; 21. Battery; 22. Partition; 23. Positioning post; 24. First positioning flange; 25. Second positioning flange; 26. Through-hole post; 27. Elastic connecting member. Detailed implementation manner

[0045] The technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present invention without creative efforts shall fall within the protection scope of the present invention.

[0046] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. is based on the orientation or positional relationship shown in the accompanying drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the present invention. In addition, the terms "first", "second", and "third" are only used for descriptive purposes and cannot be construed as indicating or implying relative importance.

[0047] In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

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

[0049] Embodiment 1

[0050] As Figure 1 and Figure 9As shown, a specific embodiment of a coil bracket assembly of an active implantable medical device includes: a frame 11, an upper cover 10, and a lower cover 12. The lower cover 12 includes a detachable outer sleeve 15 and an inner lining 16, and the outer sleeve 15 and the inner lining 16 are fixedly connected by adhesive bonding.

[0051] The upper cover 10 has a groove for accommodating the frame 11 and is detachably and fixedly connected to the outer wall of the frame 11.

[0052] The lower cover 12 is snap-fitted and butted with the upper cover 10 and is fixedly connected to the frame 11 by snap connection. Among them, the outer sleeve 15 of the lower cover 12 is snap-fitted and butted with the upper cover 10, and the inner lining 16 of the lower cover 12 is detachably and fixedly connected inside the outer sleeve 15 for snap-connecting the frame 11. The upper cover is arranged on the side of the frame where the second accommodation hole for accommodating the coil is located. Through the upper cover and the frame, the coil can be enclosed in the second accommodation hole, thereby ensuring that the circuit board is not exposed. The lower cover is arranged on the side of the frame where the first accommodation hole for accommodating the rigid connector is located. Through the lower cover and the frame, the hard circuit board can be enclosed in the first accommodation hole, thereby ensuring that the circuit board is not exposed. Moreover, after the upper cover and the lower cover are snap-fitted and butted, their overall shape is a flat semi-circle. Due to the curvature, it can be more conveniently implanted into the body. The lower cover is composed of a combination of an outer sleeve and an inner lining. The outer sleeve is used for snap-fitting and butting with the upper cover, and the inner lining is used for snap-connecting with the frame, thereby ensuring that the shape of the coil bracket assembly is arc-shaped and reducing the manufacturing difficulty of the overall lower cover.

[0053] The snap fastener for snap-connecting the frame and the lower cover is arranged on the frame. The snap fastener is inserted into the first snap hole provided on the inner lining of the lower cover to complete the combination of the snap fastener and the first snap hole. At this time, the outer sleeve of the lower cover is snap-fitted and butted with the upper cover, so that the shape of the coil bracket assembly forms an arc-shaped structure convenient for implantation.

[0054] As Figure 3 and Figure 5As shown, the frame 11 includes: a first receiving groove 1, a second receiving groove 2, and a connection hole 13. The first receiving groove 1 is located on one side of the frame 11 and is used to receive a rigid circuit board 3; the second receiving groove 2 is located on the other side of the frame 11 relative to the first receiving groove 1 and is used to receive a coil 4; the connection hole 13 penetrates through the frame 11 and is used to pass through a rigid connector 5 to electrically connect the rigid connector 5 to the rigid circuit board 3 and the coil 4 respectively. By fixing the rigid circuit board and the coil on the front and back sides of the frame respectively, and providing a connection hole on the frame for passing through and fixing the rigid connector, the two ends of the rigid connector can be easily electrically connected to the rigid circuit board and the coil respectively, thus avoiding the disadvantages of using a flexible connector to electrically connect the rigid circuit board and the coil in the past, making the connected rigid circuit board and coil easy to disassemble and assemble multiple times. During disassembly and assembly, the relatively expensive rigid circuit board 3, coil 4, and battery are not easily damaged, while the relatively inexpensive frame 11 can be replaced as a whole, thereby reducing the cost of disassembly and assembly.

[0055] The frame 11 further includes a battery receiving hole 20, which is provided in the middle of the frame 11 and is used to pass through the battery 21 of the active implantable medical device. After the battery 21 passes through the battery receiving hole, it is placed on the rigid circuit board 3, so as to be better accommodated in the coil bracket assembly, reducing the occupied space of the battery, and thus making the coil bracket assembly more compact.

[0056] As Figure 3 shown, the second receiving groove 2 of the frame 11 is divided into two circles by a partition 22, which are respectively used to receive a first coil and a second coil. The first coil and the second coil are not connected to each other. By being commonly fixed in the second receiving groove, the volume of the coil bracket assembly can be reduced.

[0057] As Figure 5 shown, positioning posts 23 are provided in the first receiving groove 1 of the frame 11, and the positioning posts 23 are used to pass through the rigid circuit board 3 to position it. A buckle 17 extending towards the lower cover 12 is also provided on the side of the first receiving groove 1 of the frame 11, and a first card hole 18 for snap-fitting with the buckle 17 is provided on the lining 16 of the lower cover 12. The frame can pass through the rigid circuit board through the positioning posts to position the rigid circuit board, ensuring the accurate installation position of the rigid circuit board.

[0058] As Figure 7 and Figure 8As shown in the figure, a positioning structure for a rigid connector 5 is provided on the frame 11 on the side of the connection hole 13 close to the first receiving groove 1. The positioning structure fixes the direction of the rigid connector 5 through a clearance fit. The positioning structure includes two positioning blocks 14, both of which are quarter-cylindrical structures and are separated in two adjacent quadrants outside the connection hole 13. There is a clearance between the two positioning blocks 14 for accommodating the rigid connector 5. The positioning structure on the frame is used to fix the rigid connector, prevent the rigid connector from moving randomly, ensure the accurate connection position of the rigid connector, and perform a clearance fit on the rigid connector through the clearance between the two positioning blocks, thereby restricting the random rotation of the rigid connector and ensuring the unity of the direction of the rigid connector.

[0059] Working principle

[0060] Fix the coil 4 in the second receiving groove 2 above the frame 11, then detachably embed the frame 11 into the upper cover 10 for fixation. Detachably embed the lining 16 of the lower cover 12 into the outer sleeve 15, and then insert it into the outer sleeve 15 of the lower cover 12 through the inwardly recessed step on the edge of the upper cover 10 to complete the snap connection between the upper cover 10 and the lower cover 12. When installing the rigid circuit board 3, remove the lower cover 12, insert the rigid connector 5 into the connection hole 13 of the frame 11, and electrically connect the upper end of the rigid connector 5 to the coil 4 by welding. Then, sleeved the rigid circuit board 3 on the positioning post 23 of the upper cover 10, so that the lower end of the rigid connector 5 passes through the insertion hole 6 of the rigid circuit board 3. Then, electrically connect the rigid connector 5 and the rigid circuit board 3 by welding. Finally, snap the lower cover 12 onto the upper cover 10, and complete the snap connection between the upper cover 10 and the lower cover 12 through the step on the upper cover 10.

[0061] Embodiment 2

[0062] As Figure 1 shown, it is a specific implementation of an active implantable medical device, including: a coil bracket assembly, a rigid circuit board 3, a coil 4, a rigid connector 5, and a battery 21. Among them, the coil bracket assembly is used to accommodate the rigid circuit board 3, the coil 4, the rigid connector 5, and the battery 21.

[0063] The coil bracket assembly adopts the coil bracket assembly described in Embodiment 1 and has two detachable layers. The first layer has a first receiving groove 1 for accommodating the rigid circuit board 3, and the second layer has a second receiving groove 2 for accommodating the coil 4. Specifically, as Figure 9As shown, the coil bracket assembly includes: an upper cover 10, a frame 11, and a lower cover 12. The upper cover 10 has a groove for accommodating the frame 11 and is detachably and fixedly connected to the outer wall of the frame 11; the frame 11 is fixedly connected between the upper cover 10 and the lower cover 12; the lower cover 12 is snap-fitted and butted against the upper cover 10 and is fixedly connected to the frame 11 by snap connection. The lower cover 12 includes: an outer sleeve 15 and an inner lining 16. The outer sleeve 15 is snap-fitted and butted against the upper cover 10, and the inner lining 16 is detachably and fixedly connected inside the outer sleeve 15 for snap-connecting the frame 11. On one side of the first accommodation groove 1 of the frame 11, there is a buckle 17 extending towards the lower cover 12, and on the inner lining 16 of the lower cover 12, there is a first card hole 18 for snap-fitting with the buckle 17; on the edge of the rigid circuit board 3, there is a second card hole 19 for cooperating with the first card hole 18 so that the buckle 17 of the frame 11 can be snapped into the first card hole 18. The first card hole 18 and the second card hole 19 form a card slot structure.

[0064] As Figure 7 and Figure 8 shown, on the side of the frame 11 near the first accommodation groove 1 and close to the connection hole 13, there is a positioning structure for the rigid connector 5. The positioning structure fixes the direction of the rigid connector 5 through clearance fit, including two positioning blocks 14. Both of the two positioning blocks 14 are quarter-cylindrical structures, separated in two adjacent quadrants around the connection hole 13, and there is a gap between the two positioning blocks 14 for accommodating the rigid connector 5.

[0065] As Figure 2 shown, after being snap-fitted, the coil bracket assembly is a flat semi-circular structure, and rounded corners are provided at each side for easy implantation into the body.

[0066] The rigid circuit board 3 is fixed in the first accommodation groove 1 of the coil bracket assembly. A battery 21 is connected to the rigid circuit board 3, and the battery 21 passes through a battery accommodation hole 20 of the frame 11 of the coil bracket assembly. The rigid circuit board 3 has an insertion hole 6 for inserting the rigid connector 5.

[0067] As Figure 3 and Figure 4 shown, the coil 4 is fixed in the second accommodation groove 2 of the coil bracket assembly. The coil 4 includes a first coil and a second coil, which are separated by a partition 22 in the second accommodation groove 2.

[0068] The rigid connector 5 is fixed between the first layer and the second layer of the coil bracket assembly, and the two ends are electrically connected to the coil 4 and the rigid circuit board 3 respectively.

[0069] As Figure 6As shown, the rigid connector 5 includes: a first connection segment 7, a bending segment 8, and a second connection segment 9. The first connection segment 7 is located at one end and is a straight segment, which is fixed by inserting into the insertion hole 6 of the rigid circuit board 3 in the first layer of the coil bracket assembly and is electrically connected to the rigid circuit board 3. The second connection segment 9 is located at the other end relative to the first connection segment 7 and is a straight segment, which is fixed by inserting into the coil bracket assembly and extends through the coil bracket assembly into the second layer of the coil bracket assembly for electrically connecting to the coil 4. The bending segment 8 is located between the first connection segment 7 and the second connection segment 9 and is a bending structure.

[0070] Embodiment 3

[0071] This embodiment provides a rigid connector for an active implantable medical device, which is used for electrically connecting a rigid circuit board and a coil in the active implantable medical device. As Figure 10 , Figure 11 shown, it includes: a first connection segment 7 and a second connection segment 9.

[0072] The first connection segment 7 is located at the lower end and is a straight segment, which is fixed by inserting into the insertion hole 6 of the rigid circuit board 3 in the active implantable medical device and is electrically connected to the rigid circuit board 3.

[0073] The second connection segment 9 is located at the other end relative to the first connection segment 7: the upper end, and is a straight segment. As Figure 12 , Figure 13 shown, the second connection segment 9 is fixed by inserting into the coil bracket assembly in the active implantable medical device and extends through the coil bracket assembly into the second layer of the coil bracket assembly for electrically connecting to the coil 4 accommodated in the second layer. Both ends are straight segments, which can facilitate the electrical connection to the rigid circuit board and the coil respectively, thus avoiding the drawback that a flexible connector must be used to electrically connect the rigid circuit board and the coil in the past, and enabling the connected rigid circuit board and coil to be easily disassembled and assembled multiple times without easily causing damage to the entire device.

[0074] The rigid connecting piece is provided with a positioning flange between the first connecting section 7 and the second connecting section 9. The axial direction can be accurately positioned through the end of the positioning flange, and the radial direction can be accurately positioned through the clearance fit between the outer diameter of the positioning flange and the hole. Specifically, the positioning flange includes: a first positioning flange 24 and a second positioning flange 25; the first positioning flange 24 is located between the first connecting section 7 and the second connecting section 9, and its outer diameter is larger than the connecting hole 13 of the coil bracket assembly, and has an end for cooperating with the connecting hole 13 of the coil bracket assembly. The end is a plane. The end for axial positioning and the outer diameter for radial positioning of the positioning flange are arranged on two structural members. In this way, when machining one of the structural members, only the limitation of one dimension needs to be considered, which is convenient for the processing and production of the rigid connecting piece. Additionally, as an alternative implementation, the end can also be an inclined plane or an arc surface.

[0075] The second positioning flange 25 is located between the first connecting section 7 and the second connecting section 9 and is close to the side of the first positioning flange 24 facing the second connecting section 9. The outer diameter of the second positioning flange 25 has a clearance fit with the connecting hole 13 of the coil bracket assembly, and the radial movement of the rigid connecting piece is restricted through the clearance fit.

[0076] The above-mentioned rigid connecting piece, in the connection structure of the rigid connecting piece of the active implantable medical device, such as Figure 12 , Figure 13 shown, includes: a positioning structure and a through-hole column 26. Through the common cooperation of the two structures, the rigid connecting piece is connected, so as to ensure the accuracy of the connection position of the rigid connecting piece.

[0077] The positioning structure is arranged in the through-hole column 26 on the connecting hole 13 of the coil bracket assembly. The rigid connecting piece 5 is fixed through the clearance fit between the inner diameter of the through-hole column 26 and the outer diameter of the rigid connecting piece 5.

[0078] The through-hole column 26 is concentrically sleeved on the side of the connecting hole 13 facing the rigid circuit board 3, and is used to pass through the second connecting section 9 of the rigid connecting piece 5, and has a mating end for mating with the end of the positioning flange for mating with the connecting hole 13 of the coil bracket assembly.

[0079] Embodiment 4

[0080] This embodiment provides a second rigid connecting piece of the active implantable medical device, which is used for electrically connecting the rigid circuit board and the coil in the active implantable medical device, such as Figure 14 , Figure 15As shown, it includes: a first connection section 7 and a second connection section 9. The structures and positions of the first connection section 7 and the second connection section 9 are the same as those in Embodiment 3, except that: a positioning flange is located between the first connection section 7 and the second connection section 9.

[0081] The positioning flange includes: a first positioning flange 24 and a second positioning flange 25; the first positioning flange 24 is located between the first connection section 7 and the second connection section 9, and its outer diameter is larger than the connection hole 13 of the coil bracket assembly, and it has an end face for contact fit with the end of the connection hole 13; the second positioning flange 25 is located between the first connection section 7 and the second connection section 9 and is close to the side of the first positioning flange 24 facing the first connection section 7, and the outer diameter of the second positioning flange 25 has a clearance fit with the insertion hole 6 of the rigid circuit board 3.

[0082] The above rigid connector, in the connection structure of the rigid connector of the active implantable medical device, such as Figure 16 , Figure 17 As shown, it includes: a positioning structure and a through-hole column 26.

[0083] The positioning structure is arranged on the insertion hole 6 of the rigid circuit board 3, and is fixedly fitted with the outer diameter of the rigid connector 5 through the size of the aperture to fix the rigid connector 5;

[0084] The through-hole column 26 is concentrically sleeved on the side of the connection hole 13 facing the rigid circuit board 3, and is used to pass through the second connection section 9 of the rigid connector 5, and has a mating end for mating with the end face of the positioning flange for mating with the connection hole 13 of the coil bracket assembly.

[0085] Embodiment 5

[0086] This embodiment provides a rigid connector for an active implantable medical device, which is used for electrically connecting a rigid circuit board and a coil in the active implantable medical device, as Figure 6 As shown, it includes: a first connection section 7 and a second connection section 9. The structures and positions of the first connection section 7 and the second connection section 9 are the same as those in both Embodiment 3 and Embodiment 4, except that: a bent section 8 is located between the first connection section 7 and the second connection section 9. The middle section of the rigid connector is a bent section, which can buffer the solder joint stress at both ends and improve the firmness of the electrical connection.

[0087] The bent section 8 is located between the first connecting section 7 and the second connecting section 9 and is a bent structure, specifically a semi-circular structure. The bent section is semi-circular, which can evenly distribute stress during buffering, and the outer wall of the semi-circular shape can also be used for axial and radial positioning of the rigid connector. Additionally, as an alternative implementation, the bent section 8 can also be other arc-shaped structures other than semi-circular.

[0088] The above-mentioned rigid connector, in the connection structure of the rigid connector of the active implant medical device, such as Figure 7 , Figure 8 As shown, includes: a positioning structure, a through-hole column 26, and a positioning block 14. Through the combined cooperation of these three structures, the rigid connector is connected, thereby ensuring the accuracy of the connection position and the correctness of the direction of the rigid connector.

[0089] The positioning structure can be set on the connection hole 13 of the coil bracket assembly or the insertion hole 6 of the rigid circuit board 3, and the outer diameter of the rigid connector 5 is clearance-fitted through the aperture size to fix the rigid connector 5. In this embodiment, the positioning structure is arranged inside the through-hole column 26, and the inner diameter of the through-hole column 26 fixes the rigid connector 5 through clearance fit.

[0090] The through-hole column 26 is concentrically sleeved on the side of the connection hole 13 facing the rigid circuit board 3, and is used to pass through the second connecting section 9 of the rigid connector 5, and has a mating end for mating with the outer wall of the bent section of the rigid connector.

[0091] There are two positioning blocks 14, which are quarter-cylindrical structures, separated in two adjacent quadrants outside the connection hole 13. There is a gap for accommodating the rigid connector 5 between the two positioning blocks 14. The random rotation of the rigid connector is restricted by the gap between the two positioning blocks, thereby ensuring the unified direction of the rigid connector.

[0092] Embodiment 6

[0093] This embodiment provides an assembly method of an active implant medical device as described in Embodiment 2, including the following steps:

[0094] Fix the tested rigid circuit board 3 in the first receiving groove 1 of the first layer of the coil bracket assembly;

[0095] Insert the rigid connector 5 into the insertion hole 6 of the coil bracket assembly, so that both ends of the rigid connector 5 are inserted into the first layer and the second layer of the coil bracket assembly respectively;

[0096] Connect the coil 4 in the second layer of the coil bracket assembly and one end of the rigid connector 5 by welding;

[0097] The other end of the rigid connecting member 5 is connected to the rigid circuit board 3 within the first layer of the coil bracket assembly by welding.

[0098] In the above assembly method, before electrically connecting the rigid circuit board to the coil, the rigid circuit board is first tested, thus avoiding the influence of the testing work on the coil or the rigid connecting member and facilitating the exclusion of unqualified rigid circuit boards; the rigid connecting member is fixed by inserting it into the insertion hole of the coil bracket assembly, and then the two ends of the rigid connecting member are electrically connected to the rigid circuit board and the coil respectively, thus avoiding the drawbacks that a flexible connecting member must be used for electrical connection.

[0099] Embodiment 7

[0100] This embodiment provides an elastic connecting member for an active implantable medical device, which is made of an elastically deformable material, such as Figure 18 As shown, the elastic connecting member 27 is positioned and connected to two juxtaposed connection holes 13 on the frame 11.

[0101] Above the elastic connecting member 27, there is an elastically deformable section, and the elastically deformable section has an arc structure formed by bending, and the arc structure is used for connecting with the coil.

[0102] After the elastically deformable section forms the arc structure, it forms a clamping structure by bending, and the clamping structure is used to extend below the connection hole 13 and be clamped on the bottom surface of the frame 11.

[0103] Below the elastic connecting member 27, there is a first connecting section extending downward, which is a vertical structure and is used for inserting and connecting to the rigid circuit board.

[0104] As Figure 19 shown, the elastic connecting member first elastically deforms so that both ends can pass downward from above the connection hole 13 through their respective corresponding holes. When both ends of the elastic connecting member pass through the connection hole, the elastic connecting member elastically resumes. The shorter end of the elastic connecting member extending downward from the frame is bent below the frame, thereby clamping and fixing the elastic connecting member on the connection hole.

[0105] Regarding the connection structure of the elastic connecting member 27 described in this embodiment, that is, two juxtaposed connection holes 13 provided on the frame 11.

[0106] Obviously, the above embodiments are merely examples given for clear illustration and are not limitations on the implementation manners. For those of ordinary skill in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation manners here. And the obvious changes or modifications derived therefrom still fall within the protection scope of the present invention.

Claims

1. An elastic connecting piece for an active implantable medical device, characterized in that, the elastic connecting piece is made of an elastically deformable material, and the elastic connecting piece includes: A first connecting section, located at one end, is a straight section and is adapted to be electrically connected to a rigid circuit board (3) in the active implantable medical device; An elastic deformation section, located at the other end, has an arc structure and a clamping structure formed by bending. The arc structure is adapted to be electrically connected to a coil (4) in the active implantable medical device; The arc structure clamps and positions the elastic connecting piece from above the frame of the active implantable medical device; After the arc structure is formed, the elastic deformation section is further bent to form a clamping structure, and the clamping structure is used to extend below the connection hole of the frame and be clamped on the bottom surface of the frame; When both ends of the elastic connecting piece pass through the connection hole, the elastic connecting piece elastically resumes. Among the elastic connecting pieces extending downward from the frame, the shorter one is bent below the frame to clamp and fix the elastic connecting piece on the connection hole.

2. The elastic connecting piece according to claim 1, characterized in that, the arc structure is perpendicular to the first connecting section.

3. The elastic connecting piece according to claim 2, characterized in that, the arc structure extends in the direction of the coil in the active implantable medical device.

4. The elastic connecting piece according to claim 2 or 3, characterized in that, the clamping structure has a perforation section parallel to the first connecting section and also has a clamping section parallel to the arc structure.

5. The elastic connecting piece according to claim 4, characterized in that, the extending direction of the clamping section is the same as that of the arc structure.

6. A connection structure of an elastic connecting piece for an active implantable medical device, characterized in that, it includes: Connection holes (13), provided on the frame (11) of the active implantable medical device, and there are two arranged side by side. One of them is used to pass through the first connecting section of the elastic connecting piece according to any one of claims 1 to 3; the other connection hole is used for clamping and positioning the elastic connecting piece.

Images