发明名称 |
Replaceable lens assembly for video laparoscope. |
摘要 |
<p>A video laparoscope has a miniature video camera (20, 23, 30) disposed at the distal end (12) of its insertion tube (11). A removably installed tubular lens cell (30) contains one or more focussing lenses (38). The lens cell has a male-threaded first end (32) and a second end on which is formed a radial flange (40) of a predetermined diameter. A tubular lens retainer canister (20) is fixedly mounted in the distal end (12) of the insertion tube, and has an outer distal portion (48) with a diameter to match the diameter of the flange (40). A sealing portion (45) adjacent to this has a smaller diameter, and biases against an O-ring or similar sealing member (37). A female-threaded proximal portion (44) receives the male-threaded first portion of the lens cell. <IMAGE></p> |
申请公布号 |
EP0587513(A2) |
申请公布日期 |
1994.03.16 |
申请号 |
EP19930420359 |
申请日期 |
1993.09.07 |
申请人 |
WELCH ALLYN, INC. |
发明人 |
PILESKI, MICHAEL J.;WOOD, ROBERT J. |
分类号 |
G02B23/24;A61B1/04;A61B1/05;A61B1/313;(IPC1-7):A61B1/04;A61B1/00 |
主分类号 |
G02B23/24 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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