Feedthrough connector and implantable medical device

Abstract

The application discloses a feedthrough connector, which comprises a feedthrough flange, a plurality of insulating pieces and a plurality of feedthrough wires. The feedthrough flange has a plurality of mounting holes; the plurality of insulating pieces are respectively arranged in the mounting holes, the insulating pieces are provided with a plurality of feedthrough holes, at least part of the plurality of insulating pieces is provided with a stepped mounting part, and the plurality of stepped mounting parts are different in height; and the plurality of feedthrough wires are respectively arranged in the plurality of feedthrough holes. According to the feedthrough connector, the plurality of insulating pieces with different heights are arranged on the feedthrough flange, the feedthrough wires are respectively arranged on the stepped mounting parts of the insulating pieces, the plurality of stepped mounting parts are prevented from interfering with each other in the same plane, the feedthrough wires arranged on different stepped mounting parts are prevented from contacting each other when being led out in the same direction, the feedthrough wires are prevented from contacting the feedthrough flange, the short circuit is avoided, and the multi-channel setting of the feedthrough connector is facilitated.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a feedthrough connector and an implantable medical device. Background Technology

[0002] In the prior art, feedthrough connectors include multiple feedthrough holes and feedthrough wires disposed within the feedthrough holes. When multiple feedthrough holes are disposed in the same plane, interference occurs when multiple feedthrough wires are led out in the same direction. Summary of the Invention

[0003] The present invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of the present invention is to provide a feedthrough connector that avoids contact between multiple conductive elements.

[0004] Another object of the present invention is to provide a feedthrough connector, including the feedthrough connector described above.

[0005] According to a first aspect of the present invention, the feedthrough connector includes: a feedthrough flange, a plurality of insulating members, and a plurality of feedthrough wires. The feedthrough flange has a plurality of mounting holes. The plurality of insulating members are respectively disposed in the mounting holes. The insulating members are provided with a plurality of feedthrough holes. At least a portion of the plurality of insulating members is provided with a stepped mounting portion, and the plurality of stepped mounting portions have different heights. The plurality of feedthrough wires are respectively disposed in the plurality of feedthrough holes.

[0006] According to the feedthrough connector of the present invention, multiple stepped mounting portions of different heights are provided on the insulating component, and multiple feedthrough holes are respectively provided on the stepped mounting portions for mounting feedthrough wires. Since the multiple stepped mounting portions have different heights, the number of feedthrough holes on the stepped mounting portions can be increased. This achieves mutual insulation between multiple feedthrough wires during installation, while avoiding interference between multiple feedthrough holes located in the same plane, increasing the efficiency of feedthrough hole installation. This also prevents contact between feedthrough wires located on different stepped mounting portions when they are led out in the same direction, and prevents contact between feedthrough wires and feedthrough flanges, thus avoiding short circuits. This is beneficial for multi-channel configuration of the feedthrough connector.

[0007] In some embodiments, the stepped mounting portion is located on one side of the feedthrough flange in the height direction, and the distance between the surface of the stepped mounting portion away from the feedthrough flange and the feedthrough flange is greater than zero.

[0008] In some embodiments, there are multiple stepped mounting portions, including a first mounting portion and a second mounting portion, wherein the first mounting portion and the second mounting portion are located on the same side of the feedthrough flange.

[0009] In some embodiments, the first mounting portion has a first mounting surface located on the side of the first mounting portion away from the feedthrough flange; the second mounting portion has a second mounting surface located on the side of the second mounting portion away from the feedthrough flange, and the distances between the first mounting surface and the second mounting surface and the feedthrough flange are different.

[0010] In some embodiments, the feedthrough flange has a third mounting surface, and both the first mounting portion and the second mounting portion are disposed on the third mounting surface. Along the height direction of the feedthrough flange, the distance between the second mounting surface and the third mounting surface is greater than the distance between the first mounting surface and the third mounting surface.

[0011] In some embodiments, the first mounting surface and the third mounting surface are located on the same plane.

[0012] In some embodiments, the first mounting portion and the second mounting portion extend along a first direction and are arranged along a second direction, and at least one of the first mounting portion and the second mounting portion is an integrally formed part.

[0013] In some embodiments, at least one of the first mounting portion and the second mounting portion includes a plurality of sub-mounting portions, the plurality of sub-mounting portions being spaced apart along a first direction, and the first mounting portion and the second mounting portion being arranged along a second direction.

[0014] In some embodiments, a plurality of feed holes on the insulating member are spaced apart along a first direction, a plurality of insulating members are arranged along a second direction, and a plurality of feed holes on adjacent insulating members are staggered along the second direction, wherein the first direction and the second direction are different.

[0015] In some embodiments, the insulating element is disposed between the feed wire and the feed flange, with at least a portion of the insulating element located outside the feed hole.

[0016] In some embodiments, the mounting hole includes a first hole segment and a second hole segment, wherein the first hole segment is disposed at one end of the second hole segment adjacent to the stepped mounting portion, and the diameter of the first hole segment is larger than the diameter of the second hole segment.

[0017] In some embodiments, the device further includes: a first weld portion disposed between the insulating member and the feed wire, the first weld portion filling the gap between the insulating member and the feed wire.

[0018] In some embodiments, the device further includes a second weld portion disposed between the insulating member and the feedthrough flange, the second weld portion filling the gap between the insulating member and the feedthrough flange.

[0019] In some embodiments, the feedthrough flange has at least one third mounting portion, the third mounting portion having the mounting hole, and a portion of the insulating element being disposed within the mounting hole of the third mounting portion;

[0020] The third mounting part is provided on one side surface of the feed-through flange along the height direction of the feed-through flange; or,

[0021] At least a portion of the feedthrough flange protrudes along the height direction from the corresponding side surface of the feedthrough flange to form the third mounting portion.

[0022] An implantable medical device according to a second aspect of the present invention includes a feedthrough connector and a plurality of conductive elements. The feedthrough connector is any one of the feedthrough connectors described in the above embodiments. One end of each of the plurality of conductive elements is connected to a plurality of first feedthrough wires and a plurality of second feedthrough wires of the feedthrough connector, and the other end of each of the plurality of conductive elements extends toward the same side of the feedthrough connector.

[0023] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0024] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0025] Figure 1 This is a three-dimensional schematic diagram of a feedthrough connector according to an embodiment of the present invention;

[0026] Figure 2 This is a three-dimensional split schematic diagram of a feedthrough connector according to an embodiment of the present invention;

[0027] Figure 3 This is another three-dimensional split schematic diagram of a feedthrough connector according to an embodiment of the present invention;

[0028] Figure 4 This is a three-dimensional split diagram of a feedthrough connector according to an embodiment of the present invention;

[0029] Figure 5 This is a right-side schematic diagram of a feedthrough connector according to an embodiment of the present invention;

[0030] Figure 6 This is an assembly diagram of a feedthrough connector and a conductive component according to an embodiment of the present invention;

[0031] Figure 7 This is a perspective schematic diagram of another feedthrough connector according to an embodiment of the present invention;

[0032] Figure 8 This is a three-dimensional split view of another feedthrough connector according to an embodiment of the present invention;

[0033] Figure 9 This is a front view schematic diagram of another feedthrough connector according to an embodiment of the present invention;

[0034] Figure 10 This is a schematic diagram of an implantable medical device according to an embodiment of the present invention;

[0035] Figure 11 This is a schematic diagram showing a three-dimensional disassembly of an implantable medical device according to an embodiment of the present invention;

[0036] Figure 12 yes Figure 11 Enlarged schematic diagram of region P in the middle;

[0037] Figure 13 This is a left-side view of a partially disassembled implantable medical device according to an embodiment of the present invention.

[0038] Figure label:

[0039] 100. Implantable medical devices;

[0040] 1. Feedthrough connector; 2. Conductive component; 3. Electrode;

[0041] 10. Feedthrough flange; 11. Mounting hole; 111. First hole section; 112. Second hole section; 12. Third mounting surface; 13. Third mounting part;

[0042] 20. Insulating component; 21. Feedthrough hole; 22. Step mounting part; 221. First mounting part; 222. First mounting surface; 223. Second mounting part; 224. Second mounting surface; 225. Sub-mounting part;

[0043] 31. First welding section; 32. Second welding section;

[0044] 40. Feed wire; 41. First feed wire; 42. Second feed wire. Detailed Implementation

[0045] The embodiments of the present invention are described in detail below. The embodiments described with reference to the accompanying drawings are exemplary. Figures 1-13 The feedthrough connector 1 according to an embodiment of the present invention is described. The feedthrough connector 1 includes: a feedthrough flange 10, a plurality of insulating elements 20, and a plurality of feedthrough wires 40.

[0046] Specifically, such as Figures 1-9As shown, the feedthrough flange 10 has multiple mounting holes 11; multiple insulating elements 20 are respectively disposed in the mounting holes 11, and multiple feedthrough holes 21 are provided on the insulating elements 20. At least some of the multiple insulating elements 20 are provided with stepped mounting portions 22, and the multiple stepped mounting portions 22 have different heights; multiple feedthrough wires 40 are respectively disposed in the multiple feedthrough holes 21.

[0047] Optionally, the feedthrough connector 1 is electrically connected to the circuit board. The feedthrough flange 10 has multiple mounting holes 11 for mounting the insulating element 20. The insulating element 20 has feedthrough holes 21 for mounting the feedthrough wire 40. The multiple feedthrough holes 21 are spaced apart. The feedthrough wire 40 passes through the feedthrough holes 21 and is electrically connected to the circuit board. The end of the feedthrough wire 40 extends out of the feedthrough hole 21 away from the circuit board. Corresponding feedthrough wires 40 are respectively installed in the multiple feedthrough holes 21 to form a signal transmission channel. The insulating element 20 includes multiple stepped mounting portions 22 of different heights. That is, when the insulating element 20 is installed on the feedthrough flange 10, the multiple insulating elements 20 have different heights to construct stepped mounting portions 22 of different heights for mounting the feedthrough holes 21. The multiple insulating elements 20 extend out of the same side surface of the feedthrough flange 10 at different heights to avoid mutual interference of the feedthrough wires 40 passing through the insulating element 20 after being led out.

[0048] Optionally, the feedthrough hole 21 includes a first feedthrough hole and a second feedthrough hole, and the feedthrough wire 40 includes a first feedthrough wire 41 and a second feedthrough wire 42. The first feedthrough hole is disposed on the first mounting portion 221, and the second feedthrough hole is disposed on the second mounting portion 223, wherein the first feedthrough wire 41 mates with the first feedthrough hole, and the second feedthrough wire 42 mates with the second feedthrough hole. The circuit board is disposed on the side of the feedthrough connector 1 away from the stepped mounting portion 22. One end of the first feedthrough wire 41 and the second feedthrough wire 42 are connected to the circuit board, and the other end respectively passes through the feedthrough hole 21 and extends out of the surface of the stepped mounting portion 22 away from the circuit board. When the other end of the first feedthrough wire 41 and the second feedthrough wire 42 are respectively connected to the conductive element 2 and led out, the conductive elements 2 connected to the first feedthrough wire 41 and the second feedthrough wire 42 do not contact each other when they are bent and extended in the same direction toward the feedthrough connector 1.

[0049] In this application, combined with Figures 10-13As shown, in the implantable medical device 100, the feedthrough wire 40 (i.e., signal transmission wire) of the feedthrough connector 1 is typically connected at both ends to the internal circuit board and the external electrode 3 or sensor. Specifically, one end of the feedthrough wire 40 is connected to the monitoring circuit or stimulation circuit on the circuit board to realize the input, output, and power supply of electrical signals, while the other end is hermetically sealed to the feedthrough flange 10 through the insulating component 20. The feedthrough wire 40 serves as a signal transmission channel; one end is connected to the internal circuit board for receiving or transmitting electrical stimulation signals, and the other end is connected to the internal electrode 3 of the implantable medical device 100. The electrode 3 is responsible for collecting bioelectrical signals from the target site or performing electrical stimulation therapy.

[0050] According to an embodiment of the present invention, the feedthrough connector 1 has multiple stepped mounting portions 22 of different heights on the insulating member 20, and multiple feedthrough holes 21 are respectively provided on the stepped mounting portions 22 for mounting feedthrough wires 40. Since the multiple stepped mounting portions 22 have different heights, the number of feedthrough holes 21 on the stepped mounting portions 22 can be increased. This achieves mutual insulation between the multiple feedthrough wires 40 during installation, while avoiding interference between the multiple feedthrough holes 21 located in the same plane. This increases the efficiency of the feedthrough hole 21 installation, so that when the feedthrough wires 40 located on different stepped mounting portions 22 are led out in the same direction, contact between the feedthrough wires 40 and contact between the feedthrough wires 40 and the feedthrough flange 10 can be avoided, that is, short circuits are avoided. This is beneficial for the multi-channel configuration of the feedthrough connector 1.

[0051] In some embodiments, such as Figures 1-9 As shown, the stepped mounting part 22 is located on one side of the feedthrough flange 10 in the height direction, and the distance between the surface of the stepped mounting part 22 away from the feedthrough flange 10 and the feedthrough flange 10 is greater than zero.

[0052] Optionally, the stepped mounting portion 22 is constructed from a portion of the insulating element 20 extending out of the feedthrough flange 10, and the stepped mounting portion 22 can be set at different heights as needed. In this application, multiple stepped mounting portions 22 are located on one side surface of the feedthrough flange 10, and the multiple stepped mounting portions 22 are located on the same side. The distance between the surfaces of the multiple stepped mounting portions 22 on the side adjacent to the feedthrough flange 10 away from each other is greater than zero.

[0053] Therefore, the different heights of the step mounting portions 22 are provided so that after the feed wires 40 are assembled with the feed holes 21 provided on the step mounting portions 22, contact between adjacent feed wires 40 can be avoided. At the same time, since the heights of the step mounting portions 22 are different, multiple feed wires 40 extend at least partially out of the feed holes 21. When the feed wires 40 of different heights are bent, since the distance between the end face of the feed hole 21 used to install the feed wires 40 away from the feed flange 10 and the feed flange 10 is different, it can effectively avoid mutual interference of multiple feed wires 40 when they are led out, and avoid the problem of short circuit due to contact.

[0054] In some embodiments, such as Figures 1-9 As shown, there are multiple stepped mounting portions 22, including a first mounting portion 221 and a second mounting portion 223, which are located on the same side of the feedthrough flange 10. Optionally, the height of the first mounting portion 221 is less than the height of the second mounting portion 223. For example, along the width direction of the feedthrough flange 10, the first mounting portion 221 is located on one side and the second mounting portion 223 is located on the other side. During use, when the feedthrough wire 40 passing through the first mounting portion 221 and the feedthrough wire 40 passing through the second mounting portion 223 are led out towards the side where the first mounting portion 221 is located, the different heights of the first mounting portion 221 and the second mounting portion 223 ensure that the feedthrough wire 40 on the first mounting portion 221 will not interfere with the feedthrough wire 40 on the second mounting portion 223, thus ensuring the smooth lead-out of the first feedthrough wire 41 and the second feedthrough wire 42.

[0055] In some embodiments, such as Figure 7 As shown, the first mounting part 221 has a first mounting surface 222, which is located on the side of the first mounting part 221 away from the feedthrough flange 10; the second mounting part 223 has a second mounting surface 224, which is located on the side of the second mounting part 223 away from the feedthrough flange 10, and the distances between the first mounting surface 222 and the second mounting surface 224 and the feedthrough flange 10 are different.

[0056] Optionally, the first mounting portion 221 and the second mounting portion 223 are located on one side of the feedthrough flange 10 along the height direction. The surface of the first mounting portion 221 away from the feedthrough flange 10 is the first mounting surface 222, and the surface of the second mounting portion 223 away from the feedthrough flange 10 is the second mounting surface 224. In this application, the distance between the first mounting surface 222 and the feedthrough flange 10 is less than the distance between the second mounting surface 224 and the feedthrough flange 10. The feedthrough hole 21 is provided on the first mounting portion 221 and the second mounting portion 223, and penetrates the first mounting portion 221 and the second mounting portion 223, as well as the first mounting surface 222 and the second mounting surface 224.

[0057] Therefore, the heights of the first mounting part 221 and the second mounting part 223 are different, that is, the distances between the end face away from the feedthrough flange 10, i.e., the first mounting surface 222 and the second mounting surface 224, and the feedthrough flange 10 are different. The first mounting surface 222 and the second mounting surface 224 are located in different planes. There is a height difference between the first mounting surface 222 and the second mounting surface 224 in the height direction of the feedthrough flange 10, so that more feedthrough holes 21 can be set when setting the first feedthrough wire 41 and the second feedthrough wire 42, so as to increase more signal transmission channels, avoid multiple feedthrough holes 21 being located in the same plane, which is not conducive to the setting and assembly of the feedthrough wire 40, increase the stability of the feedthrough connector 1 for signal transmission, and avoid the failure of the feedthrough connector 1.

[0058] In some embodiments, such as Figure 8 As shown, the feedthrough flange 10 has a third mounting surface 12. The first mounting part 221 and the second mounting part 223 are both provided on the third mounting surface 12. Along the height direction of the feedthrough flange 10, the distance between the second mounting surface 224 and the third mounting surface 12 is greater than the distance between the first mounting surface 222 and the third mounting surface 12.

[0059] Optionally, in this application, the first mounting portion 221 and the second mounting portion 223 are provided through the feedthrough flange 10, and at least a portion of the first mounting portion 221 and the second mounting portion 223 extend out of the surface of the feedthrough flange 10 along the height direction of the feedthrough flange 10. The side surface of the feedthrough flange 10 adjacent to the stepped mounting portion 22 is the third mounting surface 12. When the feedthrough wire 40 needs to be led out towards the side where the first mounting portion 221 is located, the distance between the first mounting surface 222 and the third mounting surface 12 is less than the distance between the second mounting surface 224 and the third mounting surface 12. Thus, interference is avoided when the feedthrough wires 40 on different stepped mounting portions 22 come into contact with each other during lead-out. The arrangement of stepped mounting portions 22 at different heights ensures that when the feedthrough wires 40 are led out, multiple feedthrough wires 40 are spaced apart in the height direction of the feedthrough flange 10.

[0060] In some embodiments, the first mounting surface 222 and the third mounting surface 12 are located on the same plane. Optionally, when the first mounting portion 221 does not protrude from the surface of the feedthrough flange 10, that is, when one end of the first mounting portion 221 adjacent to the second mounting portion 223 does not extend out of the mounting hole 11 corresponding to the feedthrough flange 10 along the height direction of the feedthrough flange 10, the first mounting surface 222 and the third mounting surface 12 are flush, that is, only the second mounting portion 223 extends out of the mounting hole 11 of the feedthrough flange 10 along the height direction of the feedthrough flange 10. In this application, multiple stepped mounting portions 22 may extend out of the mounting hole 11, or at least one stepped mounting portion 22 may extend out of the mounting hole 11, to ensure that the stepped mounting portions 22 used for mounting the feedthrough wire 40 form a height difference, to avoid the feedthrough wire 40 being located on the stepped mounting portions 22 at the same height, to avoid short circuits between multiple feedthrough wires 40, and to prevent interference during installation.

[0061] In some embodiments, such as Figures 7-9 As shown, the first mounting portion 221 and the second mounting portion 223 extend along the first direction and are arranged along the second direction, and at least one of the first mounting portion 221 and the second mounting portion 223 is an integrally formed part.

[0062] Optionally, in this application, the feedthrough flange 10 is provided with a first mounting portion 221 and a second mounting portion 223. The first mounting portion 221 and the second mounting portion 223 extend along a first direction and are arranged along a second direction. The first direction is the length direction of the feedthrough flange 10, and the second direction is the width direction of the feedthrough flange 10. The first mounting portion 221 and the second mounting portion 223 are respectively provided with a plurality of feedthrough holes 21. The plurality of feedthrough holes 21 on the first mounting portion 221 and the second mounting portion 223 are respectively arranged at intervals along the first direction, and a plurality of feedthrough wires 40 are respectively provided in the plurality of feedthrough holes 21. The feedthrough flange 10 is provided with two mounting holes 11 for respectively cooperating with the first mounting portion 221 and the second mounting portion 223. Thus, the first mounting portion 221 and the second mounting portion 223 are each a single integral part, which facilitates improved processing efficiency and simplifies the process of installing the stepped mounting portion 22 and the feedthrough flange 10.

[0063] In some embodiments, such as Figures 1-6 As shown, at least one of the first mounting portion 221 and the second mounting portion 223 includes a plurality of sub-mounting portions 225, the plurality of sub-mounting portions 225 are spaced apart along a first direction, and the first mounting portion 221 and the second mounting portion 223 are arranged along a second direction.

[0064] Optionally, one of the first mounting part 221 and the second mounting part 223 includes a plurality of sub-mounting parts 225. In this application, the first mounting part 221 is an integral part, and the second mounting part 223 includes a plurality of sub-mounting parts 225 spaced apart along the first direction. Each sub-mounting part 225 is provided with a feedthrough hole 21. At this time, the feedthrough flange 10 is provided with a plurality of mounting holes 11 at the position of the second mounting part 223, which are respectively provided in correspondence with the plurality of sub-mounting parts 225.

[0065] Optionally, in this application, both the first mounting portion 221 and the second mounting portion 223 include multiple sub-mounting portions 225. These multiple sub-mounting portions 225 are arranged along a first direction, and include multiple sub-mounting portions 225 of a first height and multiple sub-mounting portions 225 of a second height. The multiple sub-mounting portions 225 of the first height are arranged along the first direction, and the multiple sub-mounting portions 225 of the second height are arranged along a second direction. Adjacent sub-mounting portions 225 of the first height are arranged along the second direction. The multiple sub-mounting portions 225 of the first height constitute the first mounting portion 221, and the multiple sub-mounting portions 225 of the second height constitute the second mounting portion 223. The height of the portion of the second-height sub-mounting portion 225 extending beyond the feedthrough flange 10 is greater than the height of the portion of the first-height sub-mounting portion 225 extending beyond the feedthrough flange 10. Therefore, the inclusion of multiple sub-mounting portions in the first mounting portion 221 and the second mounting portion 223 facilitates the installation of the feedthrough hole 21, as well as subsequent maintenance and replacement, reducing the cost of use.

[0066] In some embodiments, such as Figures 1-9 As shown, multiple feed holes 21 on the insulating member 20 are spaced apart along the first direction, multiple insulating members 20 are arranged along the second direction, and multiple feed holes 21 on adjacent insulating members 20 are staggered along the second direction. The first direction and the second direction are different.

[0067] Optionally, the first mounting portion 221 and the second mounting portion 223 extend along a first direction and are spaced apart along a second direction. The first mounting portion 221 and the second mounting portion 223 are each provided with a plurality of feedthrough holes 21 arranged along the first direction. The feedthrough holes 21 on the first mounting portion 221 and the feedthrough holes 21 on the second mounting portion 223 are staggered along the second direction. Therefore, when the feedthrough wire 40 is led out from the first mounting portion 221 and the second mounting portion 223, due to the staggered arrangement of the feedthrough holes 21 on the first mounting portion 221 and the second mounting portion 223, the feedthrough wire 40 led out from the first mounting portion 221 and the feedthrough wire 40 led out from the second mounting portion 223 are spaced apart from each other, achieving insulation and avoiding interference with the feedthrough wires 40 positioned at adjacent feedthrough holes 21. This facilitates the placement of the feedthrough wire 40 within each feedthrough hole 21, improves assembly efficiency, and increases the safety of the feedthrough connector 1.

[0068] In some embodiments, such as Figure 5 As shown, the insulating member 20 is disposed between the feed wire 40 and the feed flange 10, with at least a portion of the insulating member 20 located outside the feed hole 21. Optionally, when the insulating member 20 is disposed within the mounting hole 11, it may partially extend beyond the mounting hole 11, so that the feed wire 40 disposed within the insulating member 20 is spaced apart from the feed flange 10, avoiding contact between the feed wire 40 and the feed flange 10, thus increasing the safety of the feed wire 40. Furthermore, when multiple feed wires 40 are disposed on the same mounting surface, the partial extension of the insulating member 20 beyond the mounting hole 11 effectively prevents contact between adjacent feed wires 40, simplifies the installation process, and reduces the insulation requirements for assembling the feed wire 40 with the feed hole 21.

[0069] In some embodiments, such as Figure 4 As shown, the mounting hole 11 includes a first hole segment 111 and a second hole segment 112. The first hole segment 111 is located at one end of the second hole segment 112 adjacent to the stepped mounting portion 22, and the diameter of the first hole segment 111 is larger than the diameter of the second hole segment 112. Optionally, the mounting hole 11 is a circular hole, and the first hole segment 111 is located on the side of the feedthrough flange 10 adjacent to the third mounting surface 12. That is, on the side of the feedthrough flange 10 where the third mounting surface 12 is located, the first hole segment 111 and the second hole segment 112 are sequentially formed along the height direction of the feedthrough flange 10 toward the side away from the third mounting surface 12, and the diameter of the first hole segment 111 is larger than the diameter of the second hole segment 112. After the insulating member 20 mates with the mounting hole 11 at the mounting hole 11, the gap between the insulating member 20 and the mounting hole 11 is welded to form a welded part to fill and seal the gap between the insulating member 20 and the mounting hole 11, ensuring the sealing performance of the feedthrough connector 1. The weld portion is formed within the first hole section 111 to prevent the weld portion from overflowing and to help achieve insulation with the adjacent feed wire 40.

[0070] Furthermore, such as Figure 5 As shown, it also includes: a first welding part 31, which is disposed between the insulating member 20 and the feed wire 40, and fills the gap between the insulating member 20 and the feed wire 40.

[0071] In some embodiments, the system further includes a second welding portion 32, which is disposed between the insulating member 20 and the feedthrough flange 10, and fills the gap between the insulating member 20 and the feedthrough flange 10. That is, welding is performed at the gap between the mounting hole 11 of the insulating member 20 and the feedthrough flange 10 to fill the gap, thereby achieving connection and sealing between the insulating member 20 and the feedthrough flange 10, increasing the airtightness of the feedthrough connector 1, and preventing moisture from entering the feedthrough flange 10 and reducing its service life.

[0072] In some embodiments, such as Figures 1-6As shown, the feedthrough flange 10 has at least one third mounting portion 13, the third mounting portion 13 is provided with a mounting hole 11, and a portion of the insulating element 20 is provided in the mounting hole 11 of the third mounting portion 13; the third mounting portion 13 is provided on one side surface of the feedthrough flange 10 along the height direction of the feedthrough flange 10.

[0073] Optionally, the third mounting part 13 is connected to the feedthrough flange 10 at the third mounting surface 12 of the feedthrough flange 10. The third mounting part 13 has a plurality of mounting holes 11, which penetrate the third mounting part 13 and the feedthrough flange 10 along the height direction of the feedthrough flange 10. The insulating element 20 is disposed in the mounting holes 11. Thus, the arrangement of the third mounting part 13 facilitates the formation of a mounting surface for mounting the insulating element 20 on the feedthrough flange 10, so that the feedthrough wire 40 provided on the third mounting part 13 and the feedthrough wire 40 provided on the first mounting part 221 are located in different planes, increasing the number of positions of the feedthrough wire 40, so that the feedthrough wires 40 can be spaced apart when led out to achieve insulation.

[0074] At least a portion of the feedthrough flange 10 protrudes along its height direction from the corresponding side surface of the feedthrough flange 10 to form a third mounting portion 13. Optionally, the feedthrough flange 10 has a third mounting portion 13 formed on one side of the third mounting surface 12. The third mounting portion 13 protrudes along the height direction of the feedthrough flange 10 from the third mounting surface 12 in a direction away from the center region of the feedthrough flange 10. The third mounting portion 13 has a plurality of mounting holes 11 for mounting a second mounting portion 223. A first mounting portion 221 is provided on the portion of the feedthrough flange 10 other than the third mounting portion 13. The third mounting portion 13 and the feedthrough flange 10 are integrally formed, simplifying the structure and molding process of the feedthrough flange 10 and improving assembly efficiency.

[0075] Optionally, such as Figure 7 As shown, the third mounting part 13 is provided with a mounting hole 11, and the second mounting part 223 is provided in the mounting hole 11 of the second mounting part 223.

[0076] An implantable medical device 100 according to a second aspect embodiment of the present invention, such as Figures 1-13 As shown, it includes a feedthrough connector 1 and a plurality of conductive elements 2. The feedthrough connector 1 is any of the feedthrough connectors 1 in the above embodiments. One end of the plurality of conductive elements 2 is respectively connected to a plurality of first feedthrough wires 41 and a plurality of second feedthrough wires 42 of the feedthrough connector 1, and the other end of the plurality of conductive elements 2 extends toward the same side of the feedthrough connector 1.

[0077] The implantable medical device 100 according to an embodiment of the present invention includes a feedthrough connector 1. The feedthrough connector 1 has multiple mounting surfaces for mounting different feedthrough wires 40. The multiple mounting surfaces are located on different planes, i.e., there is a height difference. Specifically, the insulating component 20 includes a first mounting portion 221 and a second mounting portion 223 with different heights. The first mounting portion 221 and the second mounting portion 223 respectively mate with mounting holes 11 provided on the feedthrough flange 10, and at least one of them extends out of the mounting hole 11. The first mounting part 221 and the second mounting part 223 are respectively provided with multiple feedthrough holes 21 for mounting feedthrough wires 40. By setting different height mounting parts, the height of the feedthrough wires 40 set on the first mounting part 221 and the second mounting part 223 after assembly is different. When one end of the multiple feedthrough wires 40 is connected to the conductive element 2 and the conductive element 2 is led out towards the same side of the feedthrough connector 1, that is, when led out along the second direction from the second mounting part 223 to the direction where the first mounting part 221 is located, since the height of the feedthrough wires 40 set on the first mounting part 221 and the second mounting part 223 is different, the height of the first mounting part 221 is less than the height of the second mounting part 223, and there is a height difference between the multiple conductive elements 2. This makes it easier to set more feedthrough wires 40 on the feedthrough connector 1, increase the signal transmission channel, and avoid the first feedthrough wire 41 set on the first mounting part 221 and the second feedthrough wire 42 set on the second mounting part 223 from contacting each other. This improves the assembly efficiency and airtightness of the feedthrough connector 1 while achieving insulation and increasing the safety of the implantable medical device 100.

[0078] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0079] In the description of this invention, "first feature" and "second feature" may include one or more of the features. In the description of this invention, "a plurality of" means two or more. In the description of this invention, "above" or "below" the second feature may include direct contact between the first and second features, or it may include contact between the first and second features not being in direct contact but through another feature between them. In the description of this invention, "above," "over," and "on top" of the second feature includes the first feature being directly above or diagonally above the second feature, or simply indicating that the first feature is at a higher horizontal level than the second feature.

[0080] In the description of this specification, references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example.

[0081] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and variations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A feedthrough connector, characterized in that, include: A feedthrough flange having multiple mounting holes; Multiple insulating components are respectively disposed within the mounting holes. Each insulating component has multiple feedthrough holes. At least a portion of the multiple insulating components has a stepped mounting portion. The stepped mounting portions are located on the same side in the height direction of the feedthrough flange. The multiple stepped mounting portions have different heights. The multiple feedthrough holes on the insulating components are spaced apart along a first direction. The multiple insulating components are arranged along a second direction. The multiple feedthrough holes on adjacent insulating components are staggered along the second direction. The first direction and the second direction are different. The first direction is the extension direction of the multiple stepped mounting portions, and the second direction is the direction in which the multiple stepped mounting portions are spaced apart. Multiple feed wires are disposed in multiple feed holes.

2. The feedthrough connector according to claim 1, characterized in that, The stepped mounting portion is located on one side of the feedthrough flange in the height direction, and the distance between the surface of the stepped mounting portion away from the feedthrough flange and the feedthrough flange is greater than zero.

3. The feedthrough connector according to claim 1, characterized in that, The stepped mounting portion is multiple, and the multiple stepped mounting portions include a first mounting portion and a second mounting portion, wherein the first mounting portion and the second mounting portion are located on the same side of the feedthrough flange.

4. The feedthrough connector according to claim 3, characterized in that, The first mounting portion has a first mounting surface, which is located on the side of the first mounting portion away from the feedthrough flange; The second mounting portion has a second mounting surface, which is located on the side of the second mounting portion away from the feedthrough flange. The distances between the first mounting surface and the second mounting surface and the feedthrough flange are different.

5. The feedthrough connector according to claim 4, characterized in that, The feedthrough flange has a third mounting surface, and both the first mounting portion and the second mounting portion are disposed on the third mounting surface. Along the height direction of the feedthrough flange, the distance between the second mounting surface and the third mounting surface is greater than the distance between the first mounting surface and the third mounting surface.

6. The feedthrough connector according to claim 5, characterized in that, The first mounting surface and the third mounting surface are located on the same plane.

7. The feedthrough connector according to claim 3, characterized in that, The first mounting portion and the second mounting portion extend along a first direction and are arranged along a second direction, and at least one of the first mounting portion and the second mounting portion is an integrally formed part.

8. The feedthrough connector according to claim 3, characterized in that, At least one of the first mounting portion and the second mounting portion includes a plurality of sub-mounting portions, the plurality of sub-mounting portions being spaced apart along a first direction, and the first mounting portion and the second mounting portion being arranged along a second direction.

9. The feedthrough connector according to claim 1, characterized in that, The plurality of feed holes on the insulating member are spaced apart along a first direction, the plurality of insulating members are arranged along a second direction, and the plurality of feed holes on adjacent insulating members are staggered along the second direction, wherein the first direction and the second direction are different.

10. The feedthrough connector according to claim 1, characterized in that, The insulating element is disposed between the feed wire and the feed flange, and at least a portion of the insulating element is located outside the feed hole.

11. The feedthrough connector according to claim 1, characterized in that, The mounting hole includes a first hole segment and a second hole segment. The first hole segment is located at one end of the second hole segment adjacent to the step mounting portion, and the diameter of the first hole segment is larger than the diameter of the second hole segment.

12. The feedthrough connector according to claim 1, characterized in that, Also includes: A first welding portion is disposed between the insulating element and the feed wire, and the first welding portion fills the gap between the insulating element and the feed wire.

13. The feedthrough connector according to claim 1, characterized in that, Also includes: The second welding part is disposed between the insulating component and the feedthrough flange, and the second welding part fills the gap between the insulating component and the feedthrough flange.

14. The feedthrough connector according to any one of claims 1-13, characterized in that, The feedthrough flange has at least one third mounting portion, the third mounting portion having the mounting hole, and a portion of the insulating element being disposed within the mounting hole of the third mounting portion; The third mounting part is provided on one side surface of the feed-through flange along the height direction of the feed-through flange; or, At least a portion of the feedthrough flange protrudes along the height direction from the corresponding side surface of the feedthrough flange to form the third mounting portion.

15. An implantable medical device, characterized in that, include: A feedthrough connector, wherein the feedthrough connector is the feedthrough connector according to any one of claims 1-14; Multiple conductive elements, one end of which is connected to multiple first feed wires and multiple second feed wires of the feed connector, and the other end of which extends toward the same side of the feed connector.

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