[특허]Method of welding a tip to a catheter

Method of welding a tip to a catheter 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	B29C-059/00 B29C-065/02
출원번호	US-0116349 (1993-09-03)
발명자 / 주소	Brown Joe E. (Lilburn GA) Pursley Matt D. (Dawsonville GA) Clark D. Joe (Norcross GA)
출원인 / 주소	American Interventional Technologies, Inc. (Stone Mountain GA 02)
인용정보	피인용 횟수 : 89 인용 특허 : 0

초록 ▼

A method of manufacturing, extruding, milling and welding a high torque, thin monolithic walled guiding catheter having resilient reinforcement material (8, 23, 29, 70, 73) integrally spiralled or braided into monolithic walls (21) of flexible material. A solid lubricant, also referred to as dry lubricant, comprised of either special fluorine containing materials or polymeric organic silicon compounds is embedded into interior and exterior wall surfaces of the catheters. Smooth interior walls (11) are channeled (10) to decrease friction resistance, to trap resistance particles and to dissipate friction heat in the high ratio of surface area to cross-sectional area of small catheters. Number of spirals or braids of reinforcement strands per unit of length, number of layers of strands of the catheters, catheter diameter and progressiveness thereof are designedly different for separate portions of particular catheters. Catheter tips (6) arc machinable immediately adjacent to select density of strands of reinforcement material. Perfusion ports are machinable where desired. Directional bends (7) are positional selectively at distal ends (5) of the catheters (1).

대표청구항 ▼

A method of welding a catheter tip to a distal end of a catheter, wherein the catheter comprises a monolithic tubular wall having a first peripheral surface and a second peripheral surface, and having strands of reinforcement material embedded therein and wherein the catheter tip comprises a tubular wall having a first peripheral surface and a second peripheral surface, the method comprising the steps of: cutting axial relief cuts in a distal end of the catheter; joining the catheter tip to the distal end of the catheter; forming an inside surface by applying welding heat to the first peripheral surface of both the catheter and the catheter tip while dissipating heat through a cooling medium at the second peripheral surface of both the catheter arid the catheter tip; and forming an outside weld surface by applying welding heat the second peripheral surface of both the catheter tube and the catheter tip while passing a cooling medium through both the catheter and the catheter tip.

이 특허를 인용한 특허 (89)

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IPC	Description
A	생활필수품
A62	인명구조; 소방(사다리 E06C)
A62B	인명구조용의 기구, 장치 또는 방법(특히 의료용에 사용되는 밸브 A61M 39/00; 특히 물에서 쓰이는 인명구조 장치 또는 방법 B63C 9/00; 잠수장비 B63C 11/00; 특히 항공기에 쓰는 것, 예. 낙하산, 투출좌석 B64D; 특히 광산에서 쓰이는 구조장치 E21F 11/00)
A62B-1/08	.. 윈치 또는 풀리에 제동기구가 있는 것

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Method of welding a tip to a catheter 원문보기

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Method of welding a tip to a catheter 원문보기

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연구과제 타임라인

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이 특허를 인용한 특허 (89)

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