CN219743696U - 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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- CN219743696U CN219743696U CN202223600583.0U CN202223600583U CN219743696U CN 219743696 U CN219743696 U CN 219743696U CN 202223600583 U CN202223600583 U CN 202223600583U CN 219743696 U CN219743696 U CN 219743696U
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- metal sleeve
- pulse generator
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- 229910052751 metal Inorganic materials 0.000 claims abstract description 68
- 239000002184 metal Substances 0.000 claims abstract description 68
- 238000003466 welding Methods 0.000 claims description 26
- 230000035515 penetration Effects 0.000 claims description 11
- 239000003292 glue Substances 0.000 claims description 10
- 229910000566 Platinum-iridium alloy Inorganic materials 0.000 claims description 4
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 4
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- HWLDNSXPUQTBOD-UHFFFAOYSA-N platinum-iridium alloy Chemical class [Ir].[Pt] HWLDNSXPUQTBOD-UHFFFAOYSA-N 0.000 claims description 4
- 239000010935 stainless steel Substances 0.000 claims description 4
- 239000004944 Liquid Silicone Rubber Substances 0.000 claims description 3
- 229920002379 silicone rubber Polymers 0.000 claims description 3
- 229910001256 stainless steel alloy Inorganic materials 0.000 claims description 3
- 229920000647 polyepoxide Polymers 0.000 claims description 2
- 239000003822 epoxy resin Substances 0.000 claims 1
- 230000000694 effects Effects 0.000 abstract description 2
- 238000002513 implantation Methods 0.000 description 9
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 238000007789 sealing Methods 0.000 description 4
- 239000010936 titanium Substances 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 229910000679 solder Inorganic materials 0.000 description 3
- 239000007943 implant Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 210000005036 nerve Anatomy 0.000 description 2
- 230000007704 transition Effects 0.000 description 2
- 239000004593 Epoxy Substances 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 230000000747 cardiac effect Effects 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 0.000 description 1
- 239000004850 liquid epoxy resins (LERs) Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 230000004007 neuromodulation Effects 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 1
- 210000000278 spinal cord Anatomy 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 210000001186 vagus nerve Anatomy 0.000 description 1
Abstract
The utility model 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, the antenna leading-out end is columnar, the diameter of the feed-through wire is approximately the same as that of the antenna leading-out end, the antenna leading-out ends are oppositely arranged along the length direction of the feed-through wire, and the antenna leading-out end and the feed-through wire are connected through a metal sleeve. The utility model realizes the technical effects that the connecting structure can better overcome the axial and radial tensile force, improve the connecting stability and reduce the possibility of falling off, thereby solving the problems of unstable connection and easy falling off of the antenna and the feed-through wire of the implantable pulse generator in the related technology.
Description
Technical Field
The utility model 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 connecting structure formed is unstable and easy to fall off due to the very small diameters of the feed-through wire and the antenna.
Disclosure of Invention
The utility model mainly aims to provide a connecting structure of an implantable pulse generator, which is used for solving the problems that an antenna of the implantable pulse generator is unstable in connection with a feed-through wire and easy to fall off in the related art.
In order to achieve the above object, the present utility model provides a connection structure of an implantable pulse generator, the connection structure is formed between a feed-through wire and an antenna, the antenna has an antenna lead-out end, the antenna lead-out end is in a column shape, the diameter of the feed-through wire is approximately the same as that of the antenna lead-out end, the antenna lead-out end is oppositely arranged along the length direction of the feed-through wire, and the antenna lead-out end and the feed-through wire are connected through a metal sleeve.
Further, the antenna leading-out end and the feed-through wire are respectively sleeved at two ends of the metal sleeve and are propped against the inside of the metal sleeve.
Further, the inner cavity of the metal sleeve is divided into a first connecting cavity and a second connecting cavity, the inner contour of the first connecting cavity is matched with the outer contour of the feed-through wire, and the inner contour of the second connecting cavity is matched with the outer contour of the antenna leading-out end;
the head of the feed-through wire is sleeved in the first connecting cavity, and the head of the antenna leading-out end is sleeved in the second connecting cavity.
Further, the metal sleeve is fixedly connected with the antenna leading-out end through at least one laser penetration spot welding, and the metal sleeve is fixedly connected with the feed-through wire through at least one laser penetration spot welding.
Further, the metal sleeve is made of implantation-level titanium alloy or stainless steel or platinum iridium alloy.
Further, an implantation grade glue is coated on the contact surface of the metal sleeve and the antenna leading-out end, and an implantation grade glue is coated on the contact surface of the metal sleeve and the feed-through wire.
Further, the outer surface of the welding spot formed by laser penetration spot welding on the metal sleeve is coated with implantation grade glue.
Further, the implant-grade glue is implant-grade liquid silicone rubber or epoxy resin.
Further, the length of the metal sleeve is at least 2 times the diameter of the feed-through wire or the diameter of the antenna lead-out.
According to another aspect of the present utility model, 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 feedthrough wire, and the above-mentioned connection structure is formed between the antenna and the feedthrough wire.
In the embodiment of the utility model, the antenna leading-out end is columnar, the diameter of the feed-through wire is approximately the same as that of the antenna leading-out end, the antenna leading-out end is oppositely arranged along the length direction of the feed-through wire, and the antenna leading-out end and the feed-through wire are connected through the metal sleeve, so that the purpose of connecting the antenna leading-out end and the feed-through wire by taking the metal sleeve as an intermediate connecting piece is achieved, and the actual connecting area is increased, thereby realizing the technical effects that the connecting structure can better overcome the axial and radial tensile force, improve the connecting stability and reduce the possibility of falling off, and further solving the problems that the connection between the antenna of the implantable pulse generator and the feed-through wire is unstable and easy to fall off in the related art.
Drawings
The accompanying drawings, which are included to provide a further understanding of the utility model, are incorporated in and constitute a part of this specification. The drawings and their description are illustrative of the utility model and are not to be construed as unduly limiting the utility model. In the drawings:
FIG. 1 is a schematic diagram of a structure according to an embodiment of the present utility model;
FIG. 2 is a schematic illustration of another connection structure in accordance with an embodiment of the present utility model;
wherein, 1 feed-through wire, 2 metal sleeve, 3 antenna extraction terminal, 4 solder joints.
Detailed Description
In order that those skilled in the art will better understand the present utility model, a technical solution in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in which it is apparent that the described embodiments are only some embodiments of the present utility model, not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the present utility model without making any inventive effort, shall fall within the scope of the present utility model.
It should be noted that the terms "first," "second," and the like in the description and the claims of the present utility model 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 utility model herein.
In the present utility model, the azimuth or positional relationship indicated by the terms "upper", "lower", "inner", and the like are based on the azimuth or positional relationship shown in the drawings. These terms are only used to better describe the present utility model and its embodiments and are not intended to limit the scope of the indicated devices, elements or components to the particular orientations or to configure and operate in the particular orientations.
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 the present utility model will be understood by those of ordinary skill in the art according to the specific circumstances.
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 above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.
In addition, the term "plurality" shall mean two as well as more than two.
It should be noted that, without conflict, the embodiments of the present utility model and features of the embodiments may be combined with each other. The utility model will be described in detail below with reference to the drawings in connection 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 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 diameters of the feed-through wires and the antenna are very small, generally 0.2-0.4mm, so that the formed connection structure is unstable and easy to fall off.
In order to solve the above technical problems, as shown in fig. 1, an embodiment of the present utility model 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 3, the antenna lead-out end 3 is columnar, the diameter of the feed-through wire 1 is approximately the same as the diameter of the antenna lead-out end 3, the antenna lead-out end 3 is oppositely arranged along the length direction of the feed-through wire 1, and the antenna lead-out end 3 and the feed-through wire 1 are connected through a metal sleeve 2.
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 3, and in this embodiment, the antenna lead-out 3 is configured to have a straight columnar structure, such as a cylinder; the connecting portion of the feed-through wire 1 is also provided in a straight configuration, and likewise the connecting portion of the feed-through wire 1 may be provided in a cylindrical configuration. On the basis, the embodiment is additionally provided with a metal sleeve 2, and the metal sleeve 2 is of a hollow tubular structure.
During connection, the first end of the metal sleeve 2 can be sleeved on the feed-through wire 1, then the antenna leading-out end 3 is sleeved on the second end of the metal sleeve 2, and connection between the feed-through wire 1 and the antenna leading-out end 3 is realized through the metal sleeve 2. Since the antenna lead-out 3 is inserted into the metal sleeve 2 for a certain length, the feed-through wire 1 is also inserted into the metal sleeve 2 for a certain length, and thus the inserted portion will serve as an effective connection area in the connection structure, and the connection structure formed in the embodiment will be more stable with respect to the point-to-point welding of the feed-through wire 1 and the antenna lead-out 3 (as shown in fig. 2). In addition, the metal sleeve 2 is adopted as an intermediate connecting piece, so that the axial and radial tensile force can be overcome well after the feed-through wire 1 and the antenna leading-out end 3 are connected, and the possibility that the feed-through wire 1 and the antenna leading-out end are separated due to the influence of external force can be reduced to a certain extent.
In order to ensure that the antenna lead-out end 3 and the metal sleeve 2 and the feed-through wire 1 and the metal sleeve 2 have enough contact areas, the antenna lead-out end 3 and the feed-through wire 1 are respectively sleeved at two ends of the metal sleeve 2 and are propped against the inside of the metal sleeve 2 in the embodiment. Specifically, the length of the antenna lead-out end 3 sleeved in the metal sleeve 2 may be equal to the length of the feed-through wire 1 sleeved in the metal sleeve 2, and the two parts respectively occupy one half of the length of the metal sleeve 2. Furthermore, the antenna lead-out 3 and the end of the feed-through wire 1 can be bonded in the metal sleeve 2 by implantation-level glue, so that the connection is more stable.
The metal sleeve 2 is used as an intermediate connector necessary for the connection structure, and the internal structure thereof will be specifically described in this embodiment.
In this embodiment, the inner cavity of the metal sleeve 2 is divided into a first connecting cavity and a second connecting cavity, the first connecting cavity is communicated with the second connecting cavity, the inner contour of the first connecting cavity is matched with the outer contour of the feed-through wire 1, and the inner contour of the second connecting cavity is matched with the outer contour of the antenna leading-out end 3. In other embodiments, the first and second connection chambers may not communicate.
The head of the feed-through wire 1 is sleeved in the first connecting cavity and is tightly connected with the inner wall of the first connecting cavity, and the head of the antenna leading-out end 3 is sleeved in the second connecting cavity and is tightly connected with the inner wall of the second connecting cavity, so that enough friction force exists between the feed-through wire 1 and the metal sleeve 2 and between the antenna leading-out end 3 and the metal sleeve 2, the connecting strength of the feed-through wire can be better ensured, and the subsequent laser penetration spot welding is also convenient. Further, the length of the metal sleeve 2 is at least 2 times the diameter of the feed-through wire 1 or the diameter of the antenna terminal 3, whereby the connection stability of the metal sleeve 2 with the feed-through wire 1 and the antenna terminal 3 can be improved and a sufficient length can be provided for the laser penetration spot welding operation. In a preferred embodiment, the length of the metal sleeve 2 is 2-4 times the diameter of the feed-through wire 1 or the diameter of the antenna lead-out 3, thereby facilitating the insertion and abutment of the feed-through wire 1, the antenna lead-out 3 at the metal sleeve 2.
An increase in the actual connection area of the antenna lead-out 3 and the feed-through conductor 1 can be achieved by the provision of the metal sleeve 2. In order to further increase the connection strength, in this embodiment, the metal sleeve 2 and the antenna lead-out end 3, and the metal sleeve 2 and the feed-through wire 1 are fixedly connected by at least one laser penetration spot welding.
When the metal sleeve 2 and the antenna leading-out end 3 are fixed by laser penetration spot welding, a welding spot 4 is formed, and when the metal sleeve 2 and the feed-through wire 1 are fixed by laser penetration spot welding, a welding spot 4 is also formed, and the two welding spots 4 are distributed on the outer surface of the metal sleeve 2 along the axial direction of the metal sleeve 2. It will be appreciated that the metal sleeve 2 and the antenna terminal 3 may be laser spot welded at two locations to form two welding spots 4, and that the metal sleeve 2 and the feed-through wire 1 may be laser spot welded at two locations to form two welding spots 4. Finally forming four welding spots 4 on the metal sleeve 2 in the welding mode, wherein the four welding spots 4 can be distributed in a straight line; in addition, for the plurality of welding spots 4, the welding spots 4 can be symmetrically distributed, for example, two groups of welding spots are distributed on two sides of the metal sleeve 2 along the axis of the metal sleeve 2, so that the stress of the antenna leading-out end 3 and the feed-through wire 1 is more balanced.
According to the usage requirement of the implantable pulse generator, the metal sleeve 2 in this embodiment is made of an implantable titanium alloy or stainless steel or platinum iridium alloy. The feed-through wire 1 may be made of a platinum iridium alloy, niobium or other metallic material. The antenna leading-out end 3 is made of implantation-level titanium alloy or stainless steel.
In order to avoid detachment between the antenna lead-out 3 and the metal sleeve 2, between the feed-through wire 1 and the metal sleeve 2, the outer surface of the solder joint 4 on the metal sleeve 2 in this embodiment may be coated with an implantation-level glue to prevent the solder joint 4 from falling off. Further, the connection between the two ends of the metal sleeve 2 and the antenna lead-out 3 and the feed-through wire 1 are also coated with an implantation grade glue. Therefore, when the connecting structure is subjected to external force, the direct stress of the welding spot 4 can be reduced due to the coating of the implantation grade glue. The implant grade glue may be an implant grade liquid silicone rubber or an epoxy. The connection structure in this embodiment increases the adhesive connection mode based on the above embodiment, so as to further improve the connection stability.
According to another aspect of the present utility model, there is provided an implantable pulse generator comprising the above-described connection structure.
The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (10)
1. The connecting structure of the implantable pulse generator is formed between a feed-through wire and an antenna, and is characterized in that the antenna is provided with an antenna lead-out end, the antenna lead-out end is columnar, the diameter of the feed-through wire is approximately the same as that of the antenna lead-out end, the antenna lead-out ends are oppositely arranged along the length direction of the feed-through wire, and the antenna lead-out end and the feed-through wire are connected through a metal sleeve.
2. The connection structure of an implantable pulse generator according to claim 1, wherein the antenna lead-out terminal and the feed-through wire are respectively sleeved at both ends of the metal sleeve and are abutted against the inside of the metal sleeve.
3. The connection structure of the implantable pulse generator according to claim 1, wherein the inner cavity of the metal sleeve is divided into a first connection cavity and a second connection cavity, the inner contour of the first connection cavity is matched with the outer contour of the feed-through wire, and the inner contour of the second connection cavity is matched with the outer contour of the antenna lead-out end;
the head of the feed-through wire is sleeved in the first connecting cavity, and the head of the antenna leading-out end is sleeved in the second connecting cavity.
4. A connection structure of an implantable pulse generator according to any one of claims 1 to 3, wherein the metal sleeve is fixedly connected to the antenna lead-out terminal by at least one laser penetration spot welding, and the metal sleeve is fixedly connected to the feed-through wire by at least one laser penetration spot welding.
5. The connection structure of an implantable pulse generator according to claim 4, wherein the metal sleeve is made of an implant-grade titanium alloy or stainless steel or platinum iridium alloy.
6. The connection structure of an implantable pulse generator according to claim 4, wherein an implant-grade adhesive is coated on a contact surface of the metal sleeve and the antenna lead-out terminal, and an implant-grade adhesive is coated on a contact surface of the metal sleeve and the feed-through wire.
7. The connection structure of an implantable pulse generator according to claim 4, wherein an outer surface of a welding spot formed by laser penetration spot welding on the metal sleeve is coated with an implant-grade adhesive.
8. The connection structure of an implantable pulse generator according to any one of claims 6 to 7, wherein the implant-grade glue is an implant-grade liquid silicone rubber or an epoxy resin.
9. The connection structure of an implantable pulse generator of claim 1, wherein the length of the metal sleeve is at least 2 times the diameter of the feed-through wire or the diameter of the antenna lead-out.
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 |
|---|---|---|---|
| CN202223600583.0U CN219743696U (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 |
|---|---|---|---|
| CN202223600583.0U CN219743696U (en) | 2022-12-29 | 2022-12-29 | Connection structure of implantable pulse generator and implantable pulse generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219743696U true CN219743696U (en) | 2023-09-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223600583.0U Active CN219743696U (en) | 2022-12-29 | 2022-12-29 | Connection structure of implantable pulse generator and implantable pulse generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219743696U (en) |
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2022
- 2022-12-29 CN CN202223600583.0U patent/CN219743696U/en active Active
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