CN213660740U - Implanted single-wire micro feed-through connector - Google Patents
Implanted single-wire micro feed-through connector Download PDFInfo
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- CN213660740U CN213660740U CN202023246238.2U CN202023246238U CN213660740U CN 213660740 U CN213660740 U CN 213660740U CN 202023246238 U CN202023246238 U CN 202023246238U CN 213660740 U CN213660740 U CN 213660740U
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- insulator
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- flange
- flange ring
- connector
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- 239000012212 insulator Substances 0.000 claims abstract description 62
- 238000007789 sealing Methods 0.000 claims abstract description 40
- 239000007943 implant Substances 0.000 claims abstract description 14
- 239000000084 colloidal system Substances 0.000 claims description 4
- 239000007769 metal material Substances 0.000 claims description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 4
- 230000001537 neural effect Effects 0.000 abstract 1
- 238000012360 testing method Methods 0.000 description 8
- 229910052719 titanium Inorganic materials 0.000 description 8
- 239000010936 titanium Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 7
- 229910052758 niobium Inorganic materials 0.000 description 7
- 239000010955 niobium Substances 0.000 description 7
- 239000002131 composite material Substances 0.000 description 5
- 238000009413 insulation Methods 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 230000000638 stimulation Effects 0.000 description 5
- 229910052726 zirconium Inorganic materials 0.000 description 5
- 229910045601 alloy Inorganic materials 0.000 description 4
- 239000000956 alloy Substances 0.000 description 4
- 229910052735 hafnium Inorganic materials 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- KDLHZDBZIXYQEI-UHFFFAOYSA-N palladium Substances [Pd] KDLHZDBZIXYQEI-UHFFFAOYSA-N 0.000 description 3
- 230000035939 shock Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 238000005219 brazing Methods 0.000 description 2
- 230000000747 cardiac effect Effects 0.000 description 2
- 238000001914 filtration Methods 0.000 description 2
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 2
- 239000010931 gold Substances 0.000 description 2
- 229910052737 gold Inorganic materials 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 229910052763 palladium Inorganic materials 0.000 description 2
- BASFCYQUMIYNBI-UHFFFAOYSA-N platinum Chemical compound [Pt] BASFCYQUMIYNBI-UHFFFAOYSA-N 0.000 description 2
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 229910010293 ceramic material Inorganic materials 0.000 description 1
- 210000003477 cochlea Anatomy 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 210000005036 nerve Anatomy 0.000 description 1
- 230000007383 nerve stimulation Effects 0.000 description 1
- 239000011664 nicotinic acid Substances 0.000 description 1
- 238000007747 plating Methods 0.000 description 1
- 229910052697 platinum Inorganic materials 0.000 description 1
- 238000002560 therapeutic procedure Methods 0.000 description 1
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Abstract
The utility model relates to an embedded single-wire micro feed-through connector, including flange ring, wire, insulator and sealing body, the maximum diameter of upper and lower opening of flange ring is 4mm, the insulator is placed in the inside of flange ring, flange ring lower extreme both sides inwards extend and form the protruding support insulator, and its upper end both sides outwards extend and form the shell of thin step sealing connection implant, wire quantity is one and passes in the cylindrical hole that the insulator corresponds the position and sets up, its upper end connects the signal output part inside the implant, the lower end connects the outside extension wire, all set up the sealing body in wire and insulator upper end junction, insulator and flange ring upper end junction; the utility model discloses the good reliability, the preparation cycle is short and the suitability is high, because the feed-through connector wire of the neural amazing class is not many, consequently can choose for use one or more to mutually support the requirement that reaches different customization products according to the demand, practices thrift the cost, improves production efficiency and the flexibility is high.
Description
Technical Field
The utility model relates to a miniature feed through connector of implanted single-conductor belongs to implanted medical equipment technical field.
Background
The electric stimulation therapy is a clinical treatment means which acts on a specific target point through a stimulation signal generated by specific equipment to achieve a treatment effect; the typical electrical stimulation treatment equipment comprises an external control device and an implant body implanted into a human body, wherein an electrode implanted into the human body collects an electrical signal of a target spot, the electrical signal is transmitted to an internal circuit through a lead and a feed-through connector to realize monitoring, the internal circuit transmits a specific electrical signal to the target spot at the electrode through the feed-through connector and the lead in sequence to realize the purpose of electrical stimulation treatment, and the electrical stimulation treatment equipment is widely applied to three types of implanted medical instruments such as an artificial cochlea, a brain pacemaker, various nerve stimulators, a cardiac pacemaker, a cardiac defibrillator artificial heart, a bionic eye and the like at present.
Because the implantable feed-through connector needs to be implanted into a human body, the implantable feed-through connector has strict requirements on sealing property, biocompatibility, temperature shock resistance and insulation and filtering property, and needs to be strictly tested before being applied to the human body so as to ensure the safety and reliability of later use of the implantable feed-through connector.
Implantable feed-through connectors currently used in neurostimulation applications are generally customized to a large number due to the small number of leads that exit therefrom; new products need to be designed and manufactured according to different requirements of customers, but the investment of the early mould opening, the development cost of the proofing and the later adjustment of the new products is high, so that the risk is high; in addition, the manufacturing period is long, the delivery period is limited, the requirement of a client is difficult to match, and the applicability is not strong enough.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a miniature feed through connector of implanted single-wire to solve the problem that proposes among the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the sealing structure comprises a flange ring, a wire, an insulator and a sealing body, wherein the upper opening and the lower opening of the flange ring are 4mm in maximum diameter, the insulator is placed inside the flange ring, two sides of the lower end of the flange ring extend inwards to form a protrusion for supporting the insulator, two sides of the upper end of the flange ring extend outwards to form a shell of a thin step sealing connection implant, the number of the wires is one, the wires penetrate through a cylindrical hole formed in the corresponding position of the insulator, the upper end of the wires is connected with a signal output end inside the implant, the lower end of the wires is connected with an external extension wire, and the sealing body is arranged at the joint of the wires and the upper end of the insulator and the joint of the upper end.
Furthermore, the gap between the inner side wall of the cylindrical hole of the insulator and the wire is between 10 and 20 mu m.
Furthermore, a countersunk hole concentric with the cylindrical hole is formed at the upper end of the cylindrical hole of the insulator and is correspondingly connected with the sealing body; the countersunk hole is used for connecting the sealing body at the joint of the lead and the upper end of the insulator.
Furthermore, the inner side wall of the flange ferrule is parallel to the outer side wall of the insulator, and a gap between the inner side wall of the flange ferrule and the outer side wall of the insulator is 20-30 micrometers.
Further, a cavity formed in the bottom of the flange ferrule is filled with colloid; for protection against bending or damage of the wire.
Further, the upper surface of the insulator is higher than the upper surface of the flange ferrule, and the distance between the upper surface of the insulator and the upper surface of the flange ferrule is 0.1-0.2 mm; for facilitating adjustment of the position of the insulator.
Further, the sealing body is made of a metal material; the sealing body plays a role in sealing connection, materials such as gold, titanium and alloy thereof are adopted, when the sealing body without active elements such as Ti, Zr, Hf, Nb and the like is used, a biocompatible composite metal coating needs to be deposited on the surface of the insulator, which is in contact with a lead, a flange ferrule and the sealing body, such as metal materials such as Ti, Pd, Zr, Nb, Co and the like, so as to ensure that the sealing body spreads and wets on the surface of the insulator in the later brazing process; on the other hand, when a sealing body containing active elements such as Ti, Zr, Hf, Nb and the like is used, the composite metal plating treatment for deposition on the insulator is not required.
Furthermore, the diameter of the wire is between 0.33 and 0.4 mm.
Further, the inward extending bulge at the lower end of the flange collar is designed to be 0.12mm by 0.12 mm; the insulator can be smoothly dropped to the bottom of the flange ferrule, and the upper surface of the insulator is ensured not to incline.
Further, the thickness of the thin step extending outwards from the upper end of the flange ring is designed to be 0.12-0.25 mm; can realize follow-up and the implant shell laser welding of different thickness, the suitability is stronger.
Compared with the prior art, the beneficial effects of the utility model are that:
the utility model has simple structure, strong reliability, short manufacturing period and high applicability, and because the number of the lead wires of the nerve stimulation feed-through connector is small, the structure size of the utility model is small, and the maximum diameter of the flange ring is only 4mm, one or more than one flange rings can be selected according to the requirement to be matched with each other to meet the requirements of different customized products, thereby saving the cost, improving the production efficiency and having high flexibility; the inward extending bulge at the lower end of the flange ferrule enables the insulator to stably fall to the bottom of the flange ferrule, and the upper surface of the insulator is ensured not to incline; the thin step extending outwards from the upper end of the flange ring realizes the subsequent laser welding with the implant shells with different thicknesses, and the applicability is stronger; the length of the lead can be cut according to requirements, so that the application range is further expanded; the sealing grade of the finished product of the utility model can reach 5 × 10-9ATM.CC/SEC, and under the condition of the test standard MIL-STD-202G, METHOD 301, the compressive strength can reach 125V; under the conditions of testing the standard MIL-STD-202 and the METHOD 302 and testing the condition of 100V DC, the insulation strength can reach 1G omega; and can bear thermal shock test at-65-200 ℃ without damage.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention.
Labeled as: 1. a wire; 2. a flange collar; 3. an insulator; 4. a sealing body.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Example 1
An implantable single-wire micro feedthrough connector provided in this embodiment is shown in fig. 1: the high-voltage power supply comprises a flange ring 2, a wire 1, an insulator 3 and a sealing body 4, wherein the upper opening and the lower opening of the flange ring 2 are 4mm in maximum diameter, the insulator 3 is placed inside the flange ring 2, two sides of the lower end of the flange ring 2 extend inwards to form a protruding supporting insulator 3, two sides of the upper end of the flange ring extend outwards to form a thin step sealing connection implant shell, the wire 1 penetrates through a cylindrical hole formed in the corresponding position of the insulator 3, the upper end of the wire is connected with a signal output end inside the implant, the lower end of the wire is connected with an external extension wire, and the sealing body 4 is arranged at the connection part of the wire 1 and the upper end of the insulator 3 and the connection part of the insulator 3.
The embodiment also comprises that the clearance between the inner side wall of the cylindrical hole of the insulator 3 and the lead 1 is between 10 and 20 mu m; the inner side wall of the flange ferrule 2 is parallel to the outer side wall of the insulator 3, and the gap between the inner side wall and the outer side wall is 20-30 mu m; the upper surface of the insulator 3 is higher than the upper surface of the flange ferrule 2, and the distance between the upper surface and the upper surface is 0.1-0.2 mm; the diameter of the lead 1 is between 0.33 and 0.4 mm; the inward extending bulge at the lower end of the flange ferrule 2 is designed to be 0.12mm by 0.12mm, so that the insulator stably falls to the bottom of the flange ferrule, and the upper surface of the insulator is ensured not to incline; the thickness of the thin step extending outwards from the upper end of the flange ring 2 is designed to be 0.12-0.25 mm, so that the subsequent laser welding with implant shells of different thicknesses is realized, and the applicability is strong.
The embodiment also comprises that the upper end of the cylindrical hole of the insulator 3 is provided with a counter bore concentric with the cylindrical hole and is correspondingly connected with the sealing body 4, a cavity left at the bottom of the flange ferrule 2 is filled with colloid, and the sealing body 4 is made of metal material; when the sealing body without active elements such as Ti, Zr, Hf, Nb and the like is used, a biocompatible composite metal coating needs to be deposited on the surface of the insulator, which is in contact with the lead, the flange ferrule and the sealing body, so as to ensure that the sealing body is spread and wetted on the surface of the insulator in the later brazing process, and on the contrary, when the sealing body containing active elements such as Ti, Zr, Hf, Nb and the like is used, the composite metal coating does not need to be deposited on the insulator.
The utility model discloses a use method:
firstly, an insulator 3 is placed in a flange ring 2 with an upper opening and a lower opening, two sides of the lower end of the flange ring 2 extend inwards to form a protrusion to support the insulator 3, the upper surface of the insulator 3 is higher than the upper surface of the flange ring 2, the inner side wall of the flange ring 2 is parallel to the outer side wall of the insulator, and two sides of the upper end of the flange ring 2 extend outwards to form a shell of a thin step sealing connection implant; then the lead 1 passes through a cylindrical hole arranged at the corresponding position of the insulator 3, sealing bodies 4 are arranged at the joint of the lead 1 and the insulator 3 and the joint of the insulator 3 and the upper end of the flange ferrule 2, and a countersunk hole concentric with the insulator 3 is arranged at the upper end of the cylindrical hole of the insulator 3 and is used for connecting the sealing bodies 4; and finally, filling colloid in a cavity left at the bottom of the flange ferrule 2, connecting the upper end of the lead 1 with a signal output end inside the implant, and connecting the lower end of the lead 1 with an external extension lead.
The lead 1 is made of a single metal filament, and is made of materials such as platinum, palladium, niobium and alloys thereof with small contact resistance and biocompatibility; the flange ferrule 2 is positioned outside the integral structure to play a role in fixing and supporting, and is made of titanium, niobium, alloy thereof and other materials which have high structural strength and biocompatibility; the insulator 3 plays a role of insulation and filtering, and is made of ceramic or composite ceramic material with good insulation performance, high structural strength and good sealing performance; the sealing body 4 has the function of sealing connection and is made of materials such as gold, titanium and alloy thereof; the sealing grade of the finished product of the utility model can reach 5 × 10-9ATM.CC/SEC, and under the condition of the test standard MIL-STD-202G, METHOD 301, the compressive strength can reach 125V; under the conditions of testing the standard MIL-STD-202 and the METHOD 302 and testing the condition of 100V DC, the insulation strength can reach 1G omega; and can bear thermal shock test at-65-200 ℃ without damage.
In the description of the present invention, it should be understood that the indicated orientation or positional relationship is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the present invention.
In addition to the above embodiments, the present invention may have other embodiments. It will be apparent to those skilled in the art that modifications and variations can be made in the above-described embodiments or in other embodiments, and equivalents may be substituted for elements thereof without departing from the spirit or scope of the invention.
Claims (10)
1. An implantable single-wire micro feed-through connector comprising a flange collar (2), a wire (1), an insulator (3) and a sealing body (4), characterized in that: the flange ring (2) is provided with an upper opening and a lower opening, the maximum diameter of the flange ring is 4mm, the insulator (3) is placed in the flange ring (2), two sides of the lower end of the flange ring (2) extend inwards to form a protruding support for the insulator (3), two sides of the upper end of the flange ring extend outwards to form a shell of a thin-step sealing connection implant, one wire (1) is arranged and penetrates through a cylindrical hole formed in the corresponding position of the insulator (3), the upper end of the wire is connected with a signal output end in the implant, the lower end of the wire is connected with an external extension wire, and the sealing body (4) is arranged at the joint of the upper ends of the wire (1) and the insulator (3) and the joint of the upper ends of the flange ring (2).
2. The implantable single-wire micro-feedthrough connector of claim 1, wherein: the gap between the inner side wall of the cylindrical hole of the insulator (3) and the lead (1) is 10-20 mu m.
3. An implantable single-wire micro-feedthrough connector according to claim 1 or 2, wherein: the upper end of the cylindrical hole of the insulator (3) is provided with a countersunk hole concentric with the cylindrical hole and is correspondingly connected with the sealing body (4).
4. The implantable single-wire micro-feedthrough connector of claim 1, wherein: the inner side wall of the flange ferrule (2) is parallel to the outer side wall of the insulator (3), and a gap between the inner side wall and the outer side wall is 20-30 mu m.
5. The implantable single-wire micro-feedthrough connector of claim 1, wherein: and a cavity formed at the bottom of the flange ferrule (2) is filled with colloid.
6. The implantable single-wire micro-feedthrough connector of claim 1, wherein: the upper surface of the insulator (3) is higher than the upper surface of the flange ferrule (2), and the distance between the insulator and the flange ferrule is 0.1-0.2 mm.
7. The implantable single-wire micro-feedthrough connector of claim 1, wherein: the sealing body (4) is made of metal materials.
8. The implantable single-wire micro-feedthrough connector of claim 1, wherein: the diameter of the lead (1) is between 0.33 and 0.4 mm.
9. The implantable single-wire micro-feedthrough connector of claim 1, wherein: the inward extending bulge at the lower end of the flange ferrule (2) is designed to be 0.12mm by 0.12 mm.
10. The implantable single-wire micro-feedthrough connector of claim 1, wherein: the thickness of the thin step extending outwards from the upper end of the flange ferrule (2) is designed to be 0.12-0.25 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023246238.2U CN213660740U (en) | 2020-12-29 | 2020-12-29 | Implanted single-wire micro feed-through connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202023246238.2U CN213660740U (en) | 2020-12-29 | 2020-12-29 | Implanted single-wire micro feed-through connector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN213660740U true CN213660740U (en) | 2021-07-09 |
Family
ID=76690590
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202023246238.2U Active CN213660740U (en) | 2020-12-29 | 2020-12-29 | Implanted single-wire micro feed-through connector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN213660740U (en) |
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2020
- 2020-12-29 CN CN202023246238.2U patent/CN213660740U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Room 101, Building 4, No. 188, Jialingjiang Road, High tech Zone, Suzhou City, Jiangsu Province, 215000 Patentee after: Moretek New Material Technology (SUZHOU) Co.,Ltd. Address before: 215000 Room 101, building 4, 188 Jialingjiang Road, Suzhou hi tech Zone, Suzhou City, Jiangsu Province Patentee before: Mokos new material technology (Suzhou) Co.,Ltd. |
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| CP03 | Change of name, title or address |