CN219477006U - Connection structure of implantable pulse generator and implantable pulse generator - Google Patents
Connection structure of implantable pulse generator and implantable pulse generator Download PDFInfo
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- CN219477006U CN219477006U CN202223547735.5U CN202223547735U CN219477006U CN 219477006 U CN219477006 U CN 219477006U CN 202223547735 U CN202223547735 U CN 202223547735U CN 219477006 U CN219477006 U CN 219477006U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The application discloses a connection structure of an implantable pulse generator and the implantable pulse generator, wherein the connection structure is formed between a feed-through wire and an antenna, the antenna is provided with an antenna leading-out end, and the antenna leading-out end is sheet-shaped; the antenna leading-out end comprises a bending structure, and the feed-through wire is arranged at the bending structure of the antenna leading-out end and is connected through at least one laser spot welding. According to the antenna structure, the contact area of the antenna leading-out end and the feed-through wire is increased, the bending structure can limit the feed-through wire in multiple directions, the technical effect that the connection stability of the antenna leading-out end and the feed-through wire can be effectively improved after laser welding is achieved, and the problems that the connection between an antenna of an implantable pulse generator and the feed-through wire is unstable and easy to fall off in the related art are solved.
Description
Technical Field
The application relates to the technical field of implantable medical equipment, in particular to a connection structure of an implantable pulse generator and the implantable pulse generator.
Background
Deep brain stimulators, vagus nerve stimulators, spinal cord nerve stimulators, sacral nerve stimulators, and the like contain a pulse generator and electrode leads. The pulse generator mainly comprises a top cover, a titanium shell and the like, wherein an electric contact piece, a sealing plug, an end sealing ring, a charging coil, an antenna, a screw and the like are arranged in the top cover. The electric contact piece is connected with the electrode wire, the antenna is used for receiving signals, and the charging coil is used for wirelessly charging the pulse generator. The antenna and the charging coil are arranged in the top cover, so that the influence of the titanium shell on signals and charging can be avoided. The charging coil, electrical contacts and antenna need to be electrically connected to the circuit board, typically through a feedthrough wire transition.
The size of the feed-through wire and the antenna is very small, so that the formed connection structure is unstable and easy to fall off.
Disclosure of Invention
The main objective of the present application is to provide a connection structure of an implantable pulse generator, so as to solve the problem that the connection between an antenna and a feed-through wire of the implantable pulse generator in the related art is unstable and easy to fall off.
In order to achieve the above object, the present application provides a connection structure of an implantable pulse generator, the connection structure being formed between a feed-through wire and an antenna, the antenna having an antenna lead-out terminal, the antenna lead-out terminal being sheet-shaped;
the antenna leading-out end comprises a bending structure, and the feed-through wire is arranged at the bending structure of the antenna leading-out end and is connected through at least one laser spot welding.
Further, the antenna leading-out end is arranged along the length direction of the feed-through wire, the bending structure is a first bending part of the head of the antenna leading-out end, the head of the feed-through wire is provided with a second bending part, and the first bending part is hooked with the second bending part and is connected through at least one laser spot welding.
Further, the first bending part is set to be U-shaped or L-shaped, and the second bending part is set to be L-shaped or U-shaped.
Further, the head of the antenna leading-out end is bent to form an L-shaped bent structure, the head of the feed-through wire is of a straight structure, and the head of the feed-through wire is arranged at the bent part of the bent structure.
Further, the inner side of the bending structure is provided with an arc-shaped bonding surface, and the diameter of the arc-shaped bonding surface is approximately the same as that of the feed-through wire.
Further, the upper surface of the antenna leading-out end is provided with a mounting groove formed by the bending structure, and the feed-through wire is embedded in the mounting groove.
Further, the inner surface of the mounting groove is provided with an arc-shaped surface which is fit with the outer surface of the feed-through wire.
Further, the inner surface of the mounting groove is arranged as a plane matching the diameter of the feed-through wire.
Further, the depth of the mounting groove is larger than the diameter of the feed-through wire, the linear type of the mounting groove is parabolic, and the feed-through wire is attached to the lower portion of the mounting groove.
Further, welding spots formed by laser spot welding are positioned at the joint of the feed-through wire and the bending structure and positioned at two sides of the feed-through wire.
According to another aspect of the present application, there is provided an implantable pulse generator, wherein an antenna is disposed in a top cover of the pulse generator, the antenna is electrically connected to a circuit board through a feed-through wire, and the above connection structure is formed between the antenna and the feed-through wire.
In this application embodiment, through setting up the antenna and having the antenna end that draws forth, the antenna end is the slice, and the antenna end includes a curved structure, and the feed-through wire sets up in the curved structure department of antenna end, and connects through at least one laser spot welding, and the antenna end has increased the area of contact with the feed-through wire through curved structure to connect through laser spot welding. Meanwhile, the bending structure can limit the feed-through wire in multiple directions, so that the technical effect of effectively improving the connection stability of the antenna leading-out end and the feed-through wire after laser welding is achieved, and the problems that the connection between an antenna of an implantable pulse generator and the feed-through wire is unstable and easy to fall off in the related art are solved.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this application, are included to provide a further understanding of the application and to provide a further understanding of the application with regard to the other features, objects and advantages of the application. The drawings of the illustrative embodiments of the present application and their descriptions are for the purpose of illustrating the present application and are not to be construed as unduly limiting the present application. In the drawings:
FIG. 1 is a schematic diagram of a connection structure according to an embodiment of the present application;
FIG. 2 is a schematic diagram of another connection structure according to an embodiment of the present application;
FIG. 3 is a schematic side elevational view of FIG. 2;
FIG. 4 is a schematic diagram of yet another connection structure according to an embodiment of the present application;
FIG. 5 is a schematic diagram of yet another connection structure according to an embodiment of the present application;
FIG. 6 is a schematic diagram of yet another connection structure according to an embodiment of the present application;
the antenna comprises a feed-through wire 1, a second bending part 11, an antenna leading-out end 2, a first bending part 22, a bending structure 21, an arc-shaped joint surface 211, a mounting groove 212 and a welding spot 3.
Detailed Description
In order to make the present application solution better understood by those skilled in the art, the following description will be made in detail and with reference to the accompanying drawings in the embodiments of the present application, it is apparent that the described embodiments are only some embodiments of the present application, not all embodiments. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, shall fall within the scope of the present application.
It should be noted that the terms "first," "second," and the like in the description and claims of the present application and the above figures are used for distinguishing between similar objects and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate in order to describe the embodiments of the present application described herein.
In the present application, the terms "upper", "lower", "inner", and the like indicate an azimuth or a positional relationship based on the azimuth or the positional relationship shown in the drawings. These terms are used primarily to better describe the present application and its embodiments and are not intended to limit the indicated device, element or component to a particular orientation or to be constructed and operated in a particular orientation.
Also, some of the terms described above may be used to indicate other meanings in addition to orientation or positional relationships, for example, the term "upper" may also be used to indicate some sort of attachment or connection in some cases. The specific meaning of these terms in this application will be understood by those of ordinary skill in the art as appropriate.
Furthermore, the terms "disposed," "configured," "connected," "secured," and the like are to be construed broadly. For example, "connected" may be in a fixed connection, a removable connection, or a unitary construction; may be a mechanical connection, or an electrical connection; may be directly connected, or indirectly connected through intervening media, or may be in internal communication between two devices, elements, or components. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art as the case may be.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other. The present application will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.
The pulse generator mainly comprises a top cover, a titanium shell and the like, wherein an electric contact piece, a sealing plug, an end sealing ring, a charging coil, an antenna, a screw and the like are arranged in the top cover. The electric contact piece is connected with the electrode wire, the antenna is used for receiving signals, and the charging coil is used for wirelessly charging the pulse generator. The antenna is arranged in the top cover, so that the influence of the titanium shell on signals can be avoided. The charging coil, electrical contacts and antenna need to be electrically connected to the circuit board, typically through a feedthrough wire transition. And the formed connection structure is unstable and easy to fall off due to the very small size of the antenna and the feed-through wire.
In order to solve the above technical problems, as shown in fig. 1 to 6, the present embodiment provides a connection structure of an implantable pulse generator, wherein the connection structure is formed between a feed-through wire 1 and an antenna, the antenna has an antenna lead-out end 2, the antenna lead-out end 2 is sheet-shaped, and the diameter of the feed-through wire 1 is approximately the same as the thickness of the antenna lead-out end 2;
the antenna lead-out 2 comprises a curved structure 21, and the feed-through wire 1 is arranged at the curved structure 21 of the antenna lead-out 2 and is connected by at least one laser spot welding.
In this embodiment, the implantable pulse generator may be a cardiac pacemaker, a defibrillator, and/or a neuromodulation device. In the present embodiment, the connection structure is applied in an implantable pulse generator, which is formed between the feed-through wire 1 and the antenna. Specifically, the antenna of the pulse generator has a section of antenna lead-out 2, and the antenna lead-out 2 has a sheet-like structure, such as a square sheet. The antenna terminal 2 of sheet-like structure can facilitate connection with the feed-through wire 1. The antenna lead-out 2 can be positioned during installation, and then the feed-through wire 1 is placed on the antenna lead-out 2. In order to increase the contact area between the feed-through wire 1 and the antenna lead-out terminal 2 and facilitate the positioning of the feed-through wire 1 on the antenna lead-out terminal 2, the sheet-shaped antenna lead-out terminal 2 is bent to form a bending structure 21, and the bending structure 21 can be positioned at any position of the antenna lead-out terminal 2, and the form can be diversified.
The curved structure 21 makes the antenna terminal 2, which is flat, have a groove structure for receiving the feed-through wire 1. The feed-through lead 1 can thus be connected in a groove formed by the bent structure 21. The antenna terminal 2 having the bent structure 21 has advantages of facilitating preliminary positioning of the feed-through wire 1 and increasing the contact area of the feed-through wire 1 and the antenna terminal 2, compared to the flat antenna terminal 2. After the feed-through wire 1 is mounted in the bent structure 21 of the antenna terminal 2, the part of the feed-through wire 1 located in the bent structure 21 and the antenna terminal 2 are connected by laser spot welding in order to sufficiently stabilize the connection between the feed-through wire 1 and the antenna terminal 2. The feed-through wire 1 and the antenna terminal 2 may be soldered at one or more places, preferably at a plurality of places, in order to balance the stress. For example, the welding can be performed on both sides of the feed-through wire 1, and the formed welding spots 3 are also distributed on both sides of the feed-through wire 1, so that the connection strength between the feed-through wire 1 and the antenna lead-out terminal 2 can be effectively improved. In this embodiment, the feed-through wire 1 is made of a metal material such as platinum iridium alloy or niobium, and the antenna lead-out terminal 2 is made of an implant-grade titanium alloy or stainless steel. The feed-through wire 1 has a diameter close to the thickness of the antenna terminal 2, and its dimensions are generally 0.2-0.5mm, preferably 0.4mm, which facilitates the connection of the two and the formation of the bent structure 21.
The antenna lead-out terminal 2 of the present embodiment increases the contact area with the feed-through wire 1 by the bent structure 21 so as to facilitate connection by laser spot welding; meanwhile, the bending structure 21 can limit the feed-through wire 1 in multiple directions, so that the technical effect of effectively improving the connection stability of the antenna leading-out end 2 and the feed-through wire 1 after laser welding is achieved, and the problems that the connection between an antenna of an implantable pulse generator and the feed-through wire 1 is unstable and easy to fall off in the related art are solved.
On the basis that the antenna lead-out 2 has a bent structure 21 to enhance the connection strength with the feed-through wire 1, the bent structure 21 of the antenna lead-out 2 has various forms, and the portion of the feed-through wire 1 connected with the antenna lead-out 2 can be provided in a corresponding various form. As shown in fig. 1, in one embodiment, the antenna terminal 2 is disposed along the length direction of the feed-through wire 1, and the head of the antenna terminal 2 is bent to form a first bent portion 22, and the first bent portion 22, that is, the form of the bent structure 21 in this embodiment; the head of the feed-through wire 1 is also bent to form the second bent portion 11, whereby the first bent portion 22 and the second bent portion 11 can be hooked and connected by at least one laser spot welding.
Specifically, in this embodiment, before connection, the head of the antenna lead-out terminal 2 is bent at a certain angle to form a first bending portion 22, and the head of the feed-through wire 1 is bent at a certain angle to form a second bending portion 11; in connection, the first bending part 22 is hooked on the second bending part 11, and then the first bending part 22 and the second bending part 11 are fixed by laser spot welding.
The bending angle of the first bending portion 22 and the bending angle of the second bending portion 11 may be different or the same. In order to enable the first bending portion 22 and the second bending portion 11 to be well hooked together, the bending angle of the two should be greater than or equal to 90 °. Because the first bending part 22 and the second bending part 11 are connected in a hooking and welding mode, the antenna leading-out end 2 and the feed-through wire 1 can overcome axial and radial tensile force better, and therefore the antenna leading-out end and the feed-through wire can be prevented from falling off easily when external force is applied.
The head of the second bend 11 is connected to the feed-through wire 1 by at least one laser spot welding. Specifically, the first bending portion 22 and the second bending portion 11 may weld one or more positions of the connection position during welding. The soldering sites may be distributed between both sides of the feed-through wire 1 and the antenna terminal 2 or between the feed-through wire 1 head and the antenna terminal 2. Of course, both sides of the feed-through wire 1 and the head of the feed-through wire 1 and the antenna lead-out 2 may be soldered at the same time, so that the connection structure is more stable.
The first bending part 22 and the second bending part 11 have a plurality of different bending angles, and can be formed into different forms. For example, the first bending portion 22 may be bent 180 ° to form a U shape, or the first bending portion 22 may be bent 90 ° to form an L shape, the second bending portion 11 may be bent 180 ° to form a U shape, or the second bending portion 11 may be bent 90 ° to form an L shape. When the first bending part 22 and the second bending part 11 are both U-shaped, the axial and radial tensile force can be better overcome after connection, and the stability of the connecting structure is further improved.
In one embodiment, as shown in fig. 1, the first bending portion 22 is bent 180 ° to form a U shape, and the second bending portion 11 is bent 90 ° to form an L shape. In order to make the first bent portion 22 and the second bent portion 11 fully contact after connection, in this embodiment, the bent width of the first bent portion 22 is greater than or equal to the diameter of the feed-through wire 1; the end extension of the second bending part 11 is equal to the width of the antenna leading-out end 2. The second bending part 11 can be positioned in advance by means of the limiting space provided by the first bending part 22 after connection, so that the subsequent laser spot welding is facilitated. As shown in fig. 1, 1 solder joint 3 is formed between the bent side edges of the antenna lead-out terminal 2 with which the head portion (the end of the second bent portion 11) of the feed-through wire 1 abuts.
In another embodiment, the first bending portion 22 and the second bending portion 11 are bent 180 ° to form a U shape, the U-shaped bending width of the first bending portion 22 is equal to the diameter of the feed-through wire 1, and the U-shaped bending width of the second bending portion 11 is equal to the width of the antenna, so that the first bending portion 22 and the second bending portion 11 are tightly connected to each other after being hooked and can provide a certain friction force to avoid detachment of the first bending portion and the second bending portion, and further, the subsequent laser spot welding is facilitated. In this embodiment, the head of the first bending portion 22 is connected to the feed-through wire 1 by at least one laser spot welding, and the head of the second bending portion 11 is connected to the antenna lead-out terminal 2 by at least one laser spot welding.
In the above embodiment, on the basis of hooking the first bending portion 22 and the second bending portion 11 to connect the antenna lead-out terminal 2 and the feed-through wire 1, in order to further improve the connection strength, the position of the welding spot 3 formed by laser spot welding is coated with the implantation glue to prevent the welding spot 3 from falling off. Further, an implant glue may be applied to the location and surrounding of the solder joint 3 and the contact portion of the feed-through wire 1 with the antenna terminal 2. The application of the implant-grade glue allows the antenna connection 2 to be fixed to the feed-through line 1 by means of an adhesive, in addition to a welding process. By coating the implantation grade glue, when the connecting structure is acted by external force, the direct stress of the welding spot 3 can be reduced, thereby reducing the possibility of falling off of the welding spot 3. Further, the implant-grade glue is implant-grade liquid silicone rubber or epoxy resin. As shown in fig. 2 and 3, in another embodiment, only the head of the antenna lead-out terminal 2 is bent to form an L-shaped bent structure 21, while the head of the feed-through wire 1 is a straight structure, and the head of the feed-through wire 1 is disposed at the bend of the bent structure 21. This structure can reduce the processing difficulty compared with the case of bending both the antenna lead-out terminal 2 and the feed-through wire 1 in the above embodiment. In order to make sufficient contact between the antenna terminal 2 and the feed-through wire 1 in the present embodiment, the inside of the bent structure 21 in the present embodiment has an arc-shaped bonding surface 211, and the diameter of the arc-shaped bonding surface 211 is substantially the same as that of the feed-through wire 1. More specifically, after connection, the side surface of the feed-through wire 1 is flush with the end surface of the bent structure 21, and the welding spot 3 formed by laser spot welding is located between the end surface of the bent structure 21 and the side surface of the feed-through wire 1 and between the plane of the antenna lead-out terminal 2 and the side surface of the feed-through wire 1. Through such structural design, can enough provide enough welding locus, also can be convenient for welding operation, simultaneously, connection structure is less to the occupation of space. In further embodiments, to facilitate bending of the end of the antenna terminal 2 to form the bent structure 21, the length L of the bent end of the antenna terminal 2 may be slightly greater than the diameter of the feed-through wire 1 by 0.2-0.4mm.
As shown in fig. 4 to 6, in other embodiments, the upper surface of the antenna lead-out end 2 is formed with a mounting groove 212 by the bending structure 21, the mounting groove 212 is a through groove, and the feed-through wire 1 is embedded in the mounting groove 212. Specifically, in the present embodiment, the antenna terminal 2 is formed by recessing a position of the upper surface thereof by the bent structure 21 to form the mounting groove 212, and simultaneously, protruding a position of the lower surface thereof to make the thickness thereof substantially constant, thereby reducing the influence on the structural strength from the thickness. Since the mounting groove 212 is formed by bending the antenna lead-out terminal 2, the mounting groove 212 has a through groove structure with both ends open.
The mounting groove 212 may also have various forms as shown in fig. 4, and in yet another embodiment, the inner surface of the mounting groove 212 is configured as an arc surface that is fitted with the outer surface of the feed-through wire 1, and the depth of the arc surface may be smaller than the diameter of the feed-through wire 1, and of course may be equal to or larger than the diameter of the feed-through wire 1. The mounting groove in this embodiment may be machined by profiling.
In a further embodiment, as shown in fig. 5, the inner surface of the mounting groove 212 is arranged as a plane matching the diameter of the feed-through wire 1, and the junction of the mounting groove 212 and the upper surface of the antenna lead-out 2 is chamfered, facilitating the insertion of the feed-through wire 1. The mounting groove in this embodiment may be machined by profiling.
In still another embodiment, as shown in fig. 6, the depth of the mounting groove 212 is larger than the diameter of the feed-through wire 1, the line shape of the mounting groove 212 is parabolic, and the feed-through wire 1 is attached to the lower portion of the mounting groove 212. The bending amplitude of the antenna terminal 2 in this embodiment will be larger than that of the antenna terminal 2 in the above two embodiments. Meanwhile, due to the special structure of the mounting groove 212, the two sides of the mounting groove can form guiding for the process of putting the feed-through wire 1 into the mounting groove, and the feed-through wire 1 can be more conveniently and preliminarily positioned. The mounting groove in this embodiment may be machined by bending. The dimensions, angles, etc. of the mounting grooves in the above embodiments may be determined according to the diameter of the feed-through wire and the actual welding situation.
In various embodiments, the welding spots formed by the laser spot welding may be located at the connection part of the feed-through wire and the bending structure and located at two sides of the feed-through wire. The solder joint 3 and the surroundings of the solder joint formed by laser spot welding and the contact part of the feed-through lead 1 and the antenna terminal 2 may be coated with an implant-grade glue, so that an additional adhesive connection between the feed-through lead 1 and the antenna terminal 2 is possible. When the connecting structure is acted by external force, the direct stress of the welding spot 3 can be reduced because the implantation grade glue is coated around the welding spot 3. Further, the implant-grade glue is implant-grade liquid silicone rubber or epoxy resin.
According to another aspect of the present application, there is provided an implantable pulse generator comprising the above-described connection structure.
The foregoing description is only of the preferred embodiments of the present application and is not intended to limit the same, but rather, various modifications and variations may be made by those skilled in the art. Any modifications, equivalent substitutions, improvements, or the like, which are within the spirit and principles of the present application, are intended to be included within the scope of the present application.
Claims (10)
1. A connection structure of an implantable pulse generator, the connection structure being formed between a feed-through wire and an antenna, characterized in that the antenna has an antenna lead-out terminal, the antenna lead-out terminal being sheet-shaped;
the antenna leading-out end comprises a bending structure, and the feed-through wire is arranged at the bending structure of the antenna leading-out end and is connected through at least one laser spot welding.
2. The connection structure of an implantable pulse generator according to claim 1, wherein the antenna lead-out terminal is disposed along a length direction of the feed-through wire, the bending structure is a first bending portion of a head portion of the antenna lead-out terminal, the head portion of the feed-through wire has a second bending portion, and the first bending portion and the second bending portion are hooked and connected by at least one laser spot welding.
3. The connection structure of an implantable pulse generator according to claim 2, wherein the first bending portion is provided in a U-shape or an L-shape, and the second bending portion is provided in an L-shape or a U-shape.
4. The connection structure of an implantable pulse generator according to claim 1, wherein the head of the antenna lead-out terminal is bent to form an L-shaped bent structure, the head of the feed-through wire is of a straight structure, and the head of the feed-through wire is provided at a bent portion of the bent structure.
5. The connection structure of an implantable pulse generator of claim 4, wherein an inner side of the curved structure has an arcuate abutment surface having a diameter substantially the same as a diameter of the feed-through wire.
6. The connection structure of an implantable pulse generator according to claim 1, wherein an upper surface of the antenna lead-out terminal is formed with a mounting groove by the bent structure, and the feed-through wire is embedded in the mounting groove.
7. The connection structure of an implantable pulse generator of claim 6, wherein an inner surface of the mounting groove is configured as an arcuate surface that conforms to an outer surface of the feed-through wire.
8. The connection structure of an implantable pulse generator according to claim 6, wherein an inner surface of the mounting groove is provided as a flat surface matching a diameter of the feed-through wire.
9. The connection structure of an implantable pulse generator according to claim 6, wherein the depth of the mounting groove is greater than the diameter of the feed-through wire, the line shape of the mounting groove is a parabolic line shape, and the feed-through wire is fitted to the lower portion of the mounting groove.
10. An implantable pulse generator, wherein an antenna is provided in a top cover of the pulse generator, the antenna is electrically connected with a circuit board through a feed-through wire, and a connection structure according to any one of claims 1 to 9 is formed between the antenna and the feed-through wire.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223547735.5U CN219477006U (en) | 2022-12-29 | 2022-12-29 | Connection structure of implantable pulse generator and implantable pulse generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223547735.5U CN219477006U (en) | 2022-12-29 | 2022-12-29 | Connection structure of implantable pulse generator and implantable pulse generator |
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| CN219477006U true CN219477006U (en) | 2023-08-04 |
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| CN202223547735.5U Active CN219477006U (en) | 2022-12-29 | 2022-12-29 | Connection structure of implantable pulse generator and implantable pulse generator |
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