[특허]Illumination cannula system for vitreous surgery

Illumination cannula system for vitreous surgery 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61B-017/36
출원번호	US-0197479 (1994-02-16)
발명자 / 주소	Luloh K. P. (176 Citation Ct. Lake Mary FL 32746)
인용정보	피인용 횟수 : 89 인용 특허 : 0

초록 ▼

An illumination cannula system for vitreous surgery. The cannula system has a plurality of illuminated cannula ports, each including a multiplicity of optical fibers annularly arranged about a central conduit channel provided with a double seal onto which a sleeve connector or boot of an infusion line adapter or sealing plug can be attached. The adapter includes an extended tube for discharging fluid beyond the terminations of the fibers. The double seal provides a convenient, positive snap-action sealing connection. Identical configurations of the cannula ports enable post-placement selection and interchange of infusion and instrumentation ports.

대표청구항 ▼

A cannula system for use in pars plana vitrectomy, said system including a cannula which can be anchored in the pars plana of an eyeball and which includes a working channel suitable for passing active surgical instruments into a vitreous cavity of the eyeball, and an adapter suitable for selectively alternatively utilizing said channel for communicating fluid from an infusion line into said vitreous cavity said cannula comprising: a length of tubing having an open upper end, an open lower end, an outside diameter and a hollow interior defining said channel; a shroud encasing said tubing, said shroud including means by which said cannula can be attached at a sclerotomy to a wall of an eyeball, with said lower end of said tubing inserted into a vitreous cavity of said eyeball; and a plurality of optical fibers having proximal and distal ends; said fibers running outside said tubing externally of said working channel and terminating within said shroud, with said proximal ends annularly, angularly spaced about said outside diameter at said lower end of said tubing; and said adapter comprising: a length of tubing having an open upper end for communication with an infusion line, an open lower end dimensioned and configured for insertion through said channel of said cannula tubing, and a hollow interior for delivery of infusion fluid from the infusion line into the vitreous cavity; and mating means for mating said adapter in sealing engagement with said cannula, when said adapter tubing is inserted through said cannula tubing channel, so that said lower end of said adapter tubing protrudes a distance beyond said lower end of said cannula tubing, for delivery of infusion fluid into the vitreous cavity at a discharge point located below said proximal ends of said fibers.

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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

내보내기 구분	파일저장 인쇄 메일전송
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연합인증

Illumination cannula system for vitreous surgery 원문보기

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Illumination cannula system for vitreous surgery 원문보기

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