[미국특허]
High reliability wire welding for implantable devices
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61N-001/00
A61N-001/375
B23K-026/22
B23K-011/00
B23K-011/11
B23K-028/02
H01R-043/02
H01R-043/033
B23K-101/32
출원번호
US-0936613
(2015-11-09)
등록번호
US-9675807
(2017-06-13)
발명자
/ 주소
Schmidt, Siegmar
출원인 / 주소
ALFRED E. MANN FOUNDATION FOR SCIENTIFIC RESEARCH
대리인 / 주소
Kilpatrick Townsend & Stockton LLP
인용정보
피인용 횟수 :
0인용 특허 :
221
초록▼
Methods of making an implantable pulse generator are disclosed herein. The implantable pulse generator can include a body defining an internal volume and a plurality of wires extending from out of the internal volume of the body. Some of these wires can be connected, either directly or indirectly to
Methods of making an implantable pulse generator are disclosed herein. The implantable pulse generator can include a body defining an internal volume and a plurality of wires extending from out of the internal volume of the body. Some of these wires can be connected, either directly or indirectly to a lead via a welded joint. The welded joint can be created by first resistance welding and then laser welding some of the wires to a connector.
대표청구항▼
1. A method of connecting a first wire comprising a first longitudinal axis to a conductive piece, the method comprising: positioning the first wire and the conductive piece such that the first wire and the conductive piece contact;resistance welding the first wire and the conductive piece together;
1. A method of connecting a first wire comprising a first longitudinal axis to a conductive piece, the method comprising: positioning the first wire and the conductive piece such that the first wire and the conductive piece contact;resistance welding the first wire and the conductive piece together; andenergy beam welding the first wire and the conductive piece together, wherein energy beam welding the first wire and the conductive piece together comprises:aiming an energy beam at an edge of the first wire such that a portion of the energy beam is tangent to the edge. 2. The method of claim 1, wherein the first wire and the conductive piece are positioned to create a lap-joint. 3. The method of claim 1, wherein energy beam welding comprises laser welding. 4. The method of claim 1, wherein energy beam welding the first wire and the conductive piece together comprises: welding the edge of the first wire to the conductive piece. 5. The method of claim 4, wherein the heat affected zone created by welding the edge of the first wire to the conductive piece extends from the edge of the first wire. 6. The method of claim 5, wherein the heat affected zone created by welding the edge of the first wire to the conductive piece extends to a second edge of the first wire. 7. The method of claim 1, further comprising enclosing the welds of the first wire and the conductive piece in a non-conductive material. 8. The method of claim 7, wherein the non-conductive material comprises a reacted resin. 9. The method of claim 1, wherein the conductive piece comprises a second wire comprising a longitudinal axis. 10. The method of claim 9, wherein the positioning the first wire and the conductive piece comprising the second wire comprises overlapping a portion of both the first wire and the second wire such that the longitudinal axes of the first wire and the second wire are non-parallel. 11. The method of claim 10, wherein the angle between the longitudinal axes of the first wire and the second wire is between 30 and 150 degrees. 12. The method of claim 1, wherein resistance welding comprises contacting the first wire and the conductive piece with at least one electrode of a resistance welder. 13. The method of claim 1, wherein the first wire comprises a diameter between 0.05 mm and 0.5 mm. 14. A system comprising: a first wire comprising an electrically conductive material and a longitudinal axis; anda conductive piece welded to the first wire, wherein the conductive piece is joined to the first wire at a first location of a joint via a first weld, and wherein the conductive piece is joined to the first wire at a second location of the joint via a second weld,wherein a heat affected zone of the second weld in the first wire is offset from the longitudinal axis of the first wire. 15. The system of claim 14, wherein the first wire comprises a platinum-iridium alloy. 16. The system of claim 14, wherein the joint of the first wire and the conductive piece comprises a lap joint. 17. The system of claim 14, wherein the first weld is separated from the second weld by a distance. 18. The system of claim 17, wherein the distance comprises approximately 0.12 millimeters. 19. The system of claim 18, wherein the first and second welds are enclosed in a non-conductive material. 20. The system of claim 19, wherein the non-conductive material comprises a reacted resin. 21. The system of claim 18, wherein the conductive piece comprises a second biocompatible wire, and wherein at the first weld of the joint, the longitudinal axis of the one of the biocompatible wires is non-parallel with the longitudinal axis of the second biocompatible wire. 22. The system of claim 14, wherein the conductive piece comprises at least one connector. 23. The system of claim 14, wherein the conductive piece comprises a first connector and a second connector, wherein a first group of the biocompatible wires connect to the first connector and a second group of biocompatible wires extend past the first connector and connect to the second connector. 24. A method of connecting first wires having a longitudinal axis to a conductive piece, the method comprising: resistance welding each of the first wires to the conductive piece, wherein resistance welding each of the first wires to the conductive piece comprises: contacting the conductive piece with a first electrode of a resistance welder; contacting each of the first wires with a second electrode of the resistance welder; and passing an electrical current from the first electrode to the second electrode; andenergy beam welding each of the first wires to the conductive piece. 25. The method of claim 24, wherein resistance welding each of the first wires to the conductive piece comprises resistance welding each of the first wires to the conductive piece at a first location. 26. The method of claim 25, wherein energy beam welding each of the first wires to the conductive piece comprises energy beam welding each of the first wires to the conductive piece at a second location. 27. The method of claim 26, wherein the first location is separated from the second location by a distance. 28. The method of claim 27, wherein the first wires comprise a diameter between 0.05 mm and 0.5 mm.
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