CN110947097B - Self-sealing plug structure for implantable medical device and implantable medical device - Google Patents
Self-sealing plug structure for implantable medical device and implantable medical device Download PDFInfo
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- CN110947097B CN110947097B CN201911205784.0A CN201911205784A CN110947097B CN 110947097 B CN110947097 B CN 110947097B CN 201911205784 A CN201911205784 A CN 201911205784A CN 110947097 B CN110947097 B CN 110947097B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/372—Arrangements in connection with the implantation of stimulators
- A61N1/375—Constructional arrangements, e.g. casings
- A61N1/37514—Brain implants
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/3605—Implantable neurostimulators for stimulating central or peripheral nerve system
- A61N1/36053—Implantable neurostimulators for stimulating central or peripheral nerve system adapted for vagal stimulation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/3605—Implantable neurostimulators for stimulating central or peripheral nerve system
- A61N1/3606—Implantable neurostimulators for stimulating central or peripheral nerve system adapted for a particular treatment
- A61N1/36062—Spinal stimulation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/362—Heart stimulators
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/372—Arrangements in connection with the implantation of stimulators
- A61N1/375—Constructional arrangements, e.g. casings
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/372—Arrangements in connection with the implantation of stimulators
- A61N1/375—Constructional arrangements, e.g. casings
- A61N1/37512—Pacemakers
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
- A61N1/00—Electrotherapy; Circuits therefor
- A61N1/18—Applying electric currents by contact electrodes
- A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
- A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
- A61N1/372—Arrangements in connection with the implantation of stimulators
- A61N1/375—Constructional arrangements, e.g. casings
- A61N1/3758—Packaging of the components within the casing
-
- 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
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- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Radiology & Medical Imaging (AREA)
- Veterinary Medicine (AREA)
- Public Health (AREA)
- Neurology (AREA)
- Neurosurgery (AREA)
- Heart & Thoracic Surgery (AREA)
- Biophysics (AREA)
- Orthopedic Medicine & Surgery (AREA)
- Cardiology (AREA)
- Prostheses (AREA)
- Electrotherapy Devices (AREA)
Abstract
The application relates to a self-sealing plug structure for an implantable medical device, which comprises a mounting hole, a first sealing ring, a pressing piece and a second sealing ring, wherein the mounting hole, the first sealing ring, the pressing piece and the second sealing ring are formed in a stimulator connector part, the first sealing ring generates radial pressure along the mounting hole through the pressing piece, the second sealing ring generates axial pressure parallel to the mounting hole, and accordingly sealing of the inner wall of the mounting hole is achieved. The self-sealing plug structure of the embodiment does not need to rely on the structure of a screw, and can be additionally provided with a seal on the basis of the seal provided by the screw. The whole structure does not need to be coated with glue, so that the assembly time can be saved; the material and structure have good adaptability and are harmless to human bodies; the sealing performance is good, the damage is not easy to occur, and the service life of the implantable medical device can be prolonged.
Description
Technical Field
The application belongs to the technical field of implantable medical devices, and particularly relates to a self-sealing plug structure and an implantable medical device.
Background
At present, the implantable medical device is widely applied to the treatment of diseases of nervous system, heart system and the like. The implantable medical device comprises deep brain electric stimulation, implantable cerebral cortex stimulation, implantable spinal cord electric stimulation, implantable sacral nerve electric stimulation, implantable vagal nerve electric stimulation, implantable cardiac electric stimulation system (commonly called cardiac pacemaker), implantable drug infusion system and the like. The deep brain electrode stimulator has the structure shown in fig. 1 and mainly comprises: a subcutaneously implanted pulse generator 10, a stimulation electrode 12 implanted in the deep brain, an extension lead 13 connecting the stimulation electrode 12 and the pulse generator 10, and an external program control instrument 14 for programming the pulse generator 10. The pulse generator 10 generates a specific electric stimulation pulse signal, and conducts to the stimulation site through the extension lead 13 and the stimulation electrode 12 for stimulation regulation. The external program control device 14 can be connected with the pulse generator 10 in a wireless mode and can change the electric pulse stimulation parameters of the pulse generator. One end of the stimulating electrode 12 has a plurality of contacts, and after the stimulating electrode 12 is implanted at the target site, at least one contact is in close contact with the stimulating target site to conduct appropriate electrical stimulation to the target site for treating neurological disorders. It will be appreciated that the stimulation electrode 12 may have one or more contacts to stimulate the corresponding location to ensure the stimulation effect. The other end of the stimulating electrode 12 is provided with a plurality of connecting rings which are arranged in one-to-one correspondence with the plurality of contacts. The connection ring is used to electrically connect the plurality of contacts with the internal circuitry of the pulse generator 10, respectively. The pulse generator 10 has a connection assembly 11 for connecting the internal circuitry of the pulse generator 10 to an electrode lead 15. Other implantable medical devices are similar in construction except that the stimulation electrode 12 is positioned differently in the human body.
The implanted nerve stimulator is implanted in human body, so that the implanted nerve stimulator has high sealing performance, long service life, no harm to human body, etc.
The patent applied before my company (document number CN 105771090B) discloses a sealing structure for an implantable medical device and a pulse generator. The screw is provided with external threads matched with the screw holes on the connecting block and a head part extending outwards in the radial direction; the insulating sealing ring is sleeved outside the screw and is arranged between the connecting block and the head of the screw; when the screw is screwed down, the insulating sealing ring is extruded, so that the insulating sealing ring is compressed along the axial direction, the electrode lead extending into the connecting hole is fixed by the connecting block, and meanwhile, the screw is provided with an integral downward pulling force, so that the insulating sealing ring is extruded, and is compressed by force in the axial direction, so that the insulating sealing ring expands in the radial direction, the insulating sealing ring is fully contacted with the outer wall of the screw and the inner wall of the sealing hole, acting forces are respectively applied to the outer wall of the screw and the inner wall of the sealing hole, the tightness is improved, and water, body fluid or foreign matters are prevented from entering the implantable medical device from the sealing hole. The screw is provided with the corresponding sealing device to realize sealing, but only a simple sealing cover is arranged between the screw and the opening at the opening, so that the sealing effect of the sealing cover is poor, and water, body fluid or foreign matters cannot be well prevented from entering the screw and the opening.
Disclosure of Invention
The invention aims to solve the technical problems that: in order to solve the defects in the prior art, the self-sealing plug structure with good sealing performance is provided.
The technical scheme adopted for solving the technical problems is as follows:
a self-sealing plug structure for an implantable medical device, comprising:
the mounting hole, the first sealing ring, the pressing piece and the second sealing ring are formed in the stimulator connector part;
the mounting hole is a step hole, and the inner wall is formed with a matching hole along the circumferential direction;
the compressing piece comprises a circular first sealing piece and a circular second sealing piece, the diameter of the first sealing piece is not larger than that of the second sealing piece, and a circumferential accommodating cavity is formed between the first sealing piece and the second sealing piece;
the first sealing ring is arranged in the circumferential accommodating cavity, and the second sealing ring is arranged between the step surface of the mounting hole and the second sealing piece;
the second sealing piece is clamped into the matching hole so that the first sealing ring generates radial pressure along the mounting hole, the second sealing ring generates axial pressure parallel to the mounting hole, and the first sealing ring and the second sealing ring are in sealing fit with the inner wall of the mounting hole.
Preferably, in the self-sealing plug structure for the implantable medical device, a bottom cavity is arranged in the center of the pressing piece, the longitudinal section of the second sealing ring is T-shaped, and the top part of the second sealing ring stretches into the bottom cavity of the pressing piece.
Preferably, the implantable medical device of the present invention is constructed with a self-sealing plug, the diameter of the bottom cavity gradually increasing toward the bottom opening.
Preferably, in the self-sealing plug structure for an implantable medical device of the present invention, an opening communicating with the bottom cavity is further provided at the center of the first sealing piece on the pressing member.
Preferably, the self-sealing plug structure for the implantable medical device of the present invention is characterized in that the opening is a threaded hole, and the opening is provided with a sealing screw.
Preferably, the self-sealing plug structure for an implantable medical device of the present invention, wherein the diameter of the first sealing piece is not larger than the diameter of the top opening of the mounting hole.
Preferably, the implantable medical device of the present invention is configured with a self-sealing plug, and the first sealing ring and the second sealing ring are made of a silicone material.
Preferably, the implantable medical device of the present invention is constructed with a self-sealing plug and the compression member is made of a metallic or hard plastic material.
Preferably, the implantable medical device of the present invention is constructed with a self-sealing plug and the stimulator connector portion is made of a plastic material.
The present invention also provides an implantable medical device comprising: a housing, a battery and a circuit board disposed in the housing, a stimulator connector portion disposed on the housing;
the self-sealing plug structure for the implantable medical device is arranged on the stimulator connector part.
The beneficial effects of the invention are as follows:
the self-sealing plug structure for the implantable medical device comprises a mounting hole, a first sealing ring, a pressing piece and a second sealing ring, wherein the mounting hole, the first sealing ring, the pressing piece and the second sealing ring are formed in a connector part of a stimulator, the first sealing ring generates radial pressure along the mounting hole through the pressing piece, and the second sealing ring generates axial pressure parallel to the mounting hole, so that the inner wall of the mounting hole is sealed. The self-sealing plug structure of the embodiment does not need to rely on the structure of a screw, and can be additionally provided with a seal on the basis of the seal provided by the screw. The whole structure does not need to be coated with glue, so that the assembly time can be saved; the material and structure have good adaptability and are harmless to human bodies; the sealing performance is good, the damage is not easy to occur, and the service life of the implantable medical device can be prolonged.
Drawings
The technical scheme of the application is further described below with reference to the accompanying drawings and examples.
FIG. 1 is a schematic diagram of the operation of an implantable deep brain electrical stimulator in the prior art;
FIG. 2 is a schematic diagram of an implantable electrical stimulator;
FIGS. 3 and 4 are schematic structural views of a self-sealing plug structure for an implantable medical device according to an embodiment of the present application;
fig. 5 is a schematic structural view of a pressing member according to an embodiment of the present application.
The reference numerals in the figures are:
2. a housing;
3. a stimulator connector portion;
10. a pulse generator;
11. a connection assembly;
12. a stimulation electrode;
13. extending the lead;
14. an in vitro program control instrument;
15. an electrode lead;
31. a mating hole;
41. a first seal ring;
42. a second seal ring;
43. a pressing member;
431. a first sealing sheet;
432. second sealing sheet
433. A circumferential receiving cavity;
434. an opening;
435. a bottom cavity.
Description of the embodiments
It should be noted that, in the case of no conflict, the embodiments and features in the embodiments may be combined with each other.
In the description of the present application, it should be understood that the terms "center," "longitudinal," "transverse," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the scope of protection of the present application. Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first", "a second", etc. may explicitly or implicitly include one or more such feature. In the description of the invention, unless otherwise indicated, the meaning of "a plurality" is two or more.
In the description of the present application, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application can be understood by those of ordinary skill in the art in a specific context.
The technical solutions of the present application will be described in detail below with reference to the accompanying drawings in combination with embodiments.
Example 1
The present embodiment provides a self-sealing plug structure for an implantable medical device, as shown in fig. 1, including:
a mounting hole formed in the stimulator connector part 3, a first seal ring 41, a pressing member 43, and a second seal ring 42;
the mounting hole is a step hole, and the inner wall is formed with a matching hole 31 along the circumferential direction;
the pressing member 43 includes a circular first sealing piece 431 and a circular second sealing piece 432 (the first sealing piece 431 and the second sealing piece 432 are connected by a vertical portion), the diameter of the first sealing piece 431 is not larger than the diameter of the second sealing piece 432, and a circumferential accommodating chamber 433 is formed between the first sealing piece 431 and the second sealing piece 432;
the first sealing ring 41 is arranged in the circumferential accommodating cavity 433, and the second sealing ring 42 is arranged between the stepped surface of the mounting hole and the second sealing piece 432;
the second sealing piece 432 is clamped into the matching hole 31 so that the first sealing ring 41 generates pressure along the radial direction of the mounting hole, the second sealing ring 42 generates pressure parallel to the axial direction of the mounting hole, and the first sealing ring 41 and the second sealing ring 42 are in sealing fit with the inner wall of the mounting hole.
The self-sealing plug structure for the implantable medical device of the above embodiment comprises a mounting hole formed in the stimulator connector part 3, a first sealing ring 41, a pressing member 43 and a second sealing ring 42, wherein the pressing member 43 enables the first sealing ring 41 to generate radial pressure along the mounting hole, and the second sealing ring 42 to generate axial pressure parallel to the mounting hole, so that the inner wall of the mounting hole is sealed. The self-sealing plug structure of the embodiment does not need to rely on the structure of a screw, and can be additionally provided with a seal on the basis of the seal provided by the screw. The whole structure does not need to be coated with glue, so that the assembly time can be saved; the material and structure have good adaptability and are harmless to human bodies; the sealing performance is good, the damage is not easy to occur, and the service life can be prolonged.
As a further improvement, a bottom cavity 435 is provided in the center of the pressing member 43, the longitudinal section of the second seal ring 42 is T-shaped, and the top portion extends into the bottom cavity 435 of the pressing member 43.
As a further improvement, the diameter of the bottom cavity 435 is gradually increased toward the bottom opening, that is, the inner cavity of the bottom cavity 435 is a conical surface, the opening is larger, and the interior is reduced. So that the second seal ring 42 can be deformed under force to achieve a tight bond with the interior cavity of the bottom cavity 435.
As a further improvement, an opening 434 communicating with the bottom cavity 435 is further provided at the center of the first sealing piece 431 on the pressing member 43, and the opening 434 is configured to exhaust gas, so that the second sealing ring 42 can enter the bottom cavity 435 conveniently. The opening 434 is a threaded hole, and the opening 434 is provided with a sealing screw, and the second sealing ring 42 is prevented from being directly exposed to the outside by sealing the opening 434 with the screw. The diameter of the first sealing piece 431 is not larger than the diameter of the top opening of the mounting hole, so that the first sealing piece 431 can completely enter the mounting hole.
The first seal ring 41 and the second seal ring 42 are made of soft materials such as silicone rubber materials for medical use.
The pressing member 43 is made of a metal material or a hard plastic material, such as 316 stainless steel.
The stinger connector part 3 is manufactured from a plastic material.
Example 2
The present embodiment provides an implantable medical device comprising: a housing 2, a battery and a circuit board (neither of which is labeled in the figure) provided in the housing 2, a stimulator connector portion 3 provided on the housing 2;
the stimulator connector portion 3 is provided with a self-sealing plug structure for an implantable medical device according to embodiment 1. With the above-described preferred embodiments according to the present application as a teaching, the related workers can make various changes and modifications without departing from the scope of the technical idea of the present application. The technical scope of the present application is not limited to the contents of the specification, and must be determined according to the scope of claims.
Claims (7)
1. A self-sealing plug structure for an implantable medical device, comprising:
the mounting hole, the first sealing ring (41), the pressing piece (43) and the second sealing ring (42) are formed in the stimulator connector part (3);
the mounting hole is a step hole, and the inner wall is formed with a matching hole (31) along the circumferential direction;
the pressing piece (43) comprises a round first sealing piece (431) and a round second sealing piece (432), the diameter of the first sealing piece (431) is not larger than that of the second sealing piece (432), and a circumferential accommodating cavity (433) is formed between the first sealing piece (431) and the second sealing piece (432);
the first sealing ring (41) is arranged in the circumferential accommodating cavity (433), and the second sealing ring (42) is arranged between the step surface of the mounting hole and the second sealing sheet (432); the second sealing piece (432) is clamped into the matching hole (31) so that the first sealing ring (41) generates pressure along the radial direction of the mounting hole, the second sealing ring (42) generates pressure parallel to the axial direction of the mounting hole, and the first sealing ring (41) and the second sealing ring (42) are in sealing fit with the inner wall of the mounting hole;
the center of the pressing piece (43) is provided with a bottom cavity (435), the longitudinal section of the second sealing ring (42) is T-shaped, and the top part of the second sealing ring extends into the bottom cavity (435) of the pressing piece (43);
an opening (434) communicated with the bottom cavity (435) is also arranged in the center of the first sealing piece (431) on the pressing piece (43);
the opening (434) is a threaded hole, and the opening (434) is provided with a sealing screw.
2. The self-sealing plug structure for an implantable medical device according to claim 1, wherein the diameter of the bottom cavity (435) gradually increases toward the bottom opening.
3. The self-sealing plug structure for an implantable medical device according to claim 1, wherein the diameter of the first sealing piece (431) is not larger than the diameter of the mounting hole top opening.
4. The self-sealing plug structure for an implantable medical device according to claim 1, wherein the first sealing ring (41) and the second sealing ring (42) are made of a silicone material.
5. The self-sealing plug structure for an implantable medical device according to claim 1, wherein the pressing member (43) is made of a metal material or a hard plastic material.
6. An implantable medical device according to claim 1, wherein the stinger connector portion (3) is made of a plastic material.
7. An implantable medical device, comprising: a housing (2), a battery and a circuit board arranged in the housing (2), and a stimulator connector part (3) arranged on the housing (2); the stinger connector part (3) is provided with a self-sealing plug structure for an implantable medical device according to any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911205784.0A CN110947097B (en) | 2019-11-29 | 2019-11-29 | Self-sealing plug structure for implantable medical device and implantable medical device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911205784.0A CN110947097B (en) | 2019-11-29 | 2019-11-29 | Self-sealing plug structure for implantable medical device and implantable medical device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN110947097A CN110947097A (en) | 2020-04-03 |
| CN110947097B true CN110947097B (en) | 2023-06-20 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911205784.0A Active CN110947097B (en) | 2019-11-29 | 2019-11-29 | Self-sealing plug structure for implantable medical device and implantable medical device |
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| CN (1) | CN110947097B (en) |
Families Citing this family (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112599899A (en) * | 2020-12-15 | 2021-04-02 | 上海兰钧新能源科技有限公司 | Top cover structure and battery |
| CN112999516A (en) * | 2021-04-07 | 2021-06-22 | 丹源医学科技(杭州)有限公司 | Surgical suture curved hole structure of implant device and forming method thereof |
| CN113289137B (en) * | 2021-05-24 | 2022-10-18 | 枣庄市肿瘤医院(枣庄市胸科医院) | Implantable medical device based on self-sealing plug structure |
| CN113809593B (en) * | 2021-09-30 | 2023-08-15 | 苏州景昱医疗器械有限公司 | Connecting device and nerve electrical stimulation system |
| CN114305405A (en) * | 2021-12-29 | 2022-04-12 | 上海微创生命科技有限公司 | Subcutaneous implantation type medical unit, medical device and irradiation sterilization shielding device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6205358B1 (en) * | 1997-08-01 | 2001-03-20 | Medtronic, Inc. | Method of making ultrasonically welded, staked of swaged components in an implantable medical device |
| CN105107091A (en) * | 2015-08-21 | 2015-12-02 | 北京品驰医疗设备有限公司 | Sealing plug and implantable medical device using same |
| CN105771090A (en) * | 2016-05-11 | 2016-07-20 | 常州瑞神安医疗器械有限公司 | Sealing structure for implantable-type medical instrument, and pulse generator |
-
2019
- 2019-11-29 CN CN201911205784.0A patent/CN110947097B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6205358B1 (en) * | 1997-08-01 | 2001-03-20 | Medtronic, Inc. | Method of making ultrasonically welded, staked of swaged components in an implantable medical device |
| CN105107091A (en) * | 2015-08-21 | 2015-12-02 | 北京品驰医疗设备有限公司 | Sealing plug and implantable medical device using same |
| CN105771090A (en) * | 2016-05-11 | 2016-07-20 | 常州瑞神安医疗器械有限公司 | Sealing structure for implantable-type medical instrument, and pulse generator |
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| Publication number | Publication date |
|---|---|
| CN110947097A (en) | 2020-04-03 |
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