[특허]Endoscopic mirror laser beam delivery system and method for controlling alignment

Endoscopic mirror laser beam delivery system and method for controlling alignment 원문보기

IPC분류정보
국가/구분	United States(US) Patent 등록
국제특허분류(IPC7판)	A61B-017/36
출원번호	US-0643279 (1991-01-22)
발명자 / 주소	Black Michael (Foster City CA) Kupershmidt Vladimir (Fremont CA)
출원인 / 주소	Reliant Laser Corp. (Foster City CA 02)
인용정보	피인용 횟수 : 36 인용 특허 : 0

초록 ▼

An endoscopic mirror laser beam delivery system, e.g., for laser surgery, comprises a beam splitting module (22) for optical connection to a laser beam source (14) which supplies a low-power aiming beam (12) and a high-power surgical beam (10) to the splitting module (22); a two-mirror focusing unit (24) optically connected to the splitting unit (22); and an endoscopic tube (20) for guiding the beams focused by the focusing unit (24) to a target point (P). The system also comprises a method for checking alignment of the optical system by observing the positions of two visible beam spots. In case of misalignment, these two spots do not coincide in a single point, thereby indicating misalignment which can be then corrected. The system and the method eliminate central obscuration and misalignment of the laser beams on an operation site, thereby enabling a surgeon to be able to be confident that the surgeon beam will impinge precisely upon the spot delineated by the aiming beam.

대표청구항 ▼

An endoscopic mirror laser bean delivery system comprising: a beam splitting module for optical connection to a laser beam source which supplies at least one incident laser beam to said module along an optical axis of said module, said module dividing said laser beam into two symmetrical branches; a two-mirror focusing unit optically connected to said beam splitting unit to receive said two branches and to direct them onto a common target point; an endoscopic tube for building said two focused branches onto said common target point without obstruction, said tube having a rear end which is connected to said focusing unit and a front end which faces said common target point, said common target point being spaced from said front end; said beam splitting module comprising a mirror prism having an apex facing said incident laser beam and located on said optical axis, and a pair of plane mirrors arranged symmetrically on both sides of said central axis and inclined at equal angles to said axis, so that when said incident laser beam falls onto said prism, it is divided into said two symmetrical branches; an aspherical concave mirror having a curved portion facing said beam splitting module; and a central convex mirror having a curved portion facing said curved portion of said aspherical concave mirror and said target point, so that when said two branches fall onto said aspherical concave mirror, said two branches are directed in a converged form onto said convex mirror and are guided into said endoscopic tube through said hole without being obstructed by said convex mirror.

이 특허를 인용한 특허 (36)

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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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Endoscopic mirror laser beam delivery system and method for controlling alignment 원문보기

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Endoscopic mirror laser beam delivery system and method for controlling alignment 원문보기

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