发明授权
US5392789A Endoscopic scissors having scissor elements loosely engaged with a clevis
失效
内窥镜剪刀具有与U形夹松动接合的剪刀元件
- 专利标题: Endoscopic scissors having scissor elements loosely engaged with a clevis
- 专利标题(中): 内窥镜剪刀具有与U形夹松动接合的剪刀元件
-
申请号: US140260申请日: 1993-10-21
-
公开(公告)号: US5392789A公开(公告)日: 1995-02-28
- 发明人: Charles R. Slater , Jurgen A. Kortenbach , John Starkey
- 申请人: Charles R. Slater , Jurgen A. Kortenbach , John Starkey
- 申请人地址: FL Miami
- 专利权人: Symbiosis Corporation
- 当前专利权人: Symbiosis Corporation
- 当前专利权人地址: FL Miami
- 主分类号: A61B10/00
- IPC分类号: A61B10/00 ; A61B10/06 ; A61B17/00 ; A61B17/28 ; A61B17/32 ; A61B18/14
摘要:
An endoscopic scissors includes a clevis having a relatively large diameter bore in its first arm and relatively smaller diameter bore in its second arm. A pair of scissor elements having mounting/pivot holes are mounted between the clevis arms. Either the small diameter bore in the second clevis arm or the mounting/pivot hole in the scissor element closest to the second clevis arm is threaded. A stepped diameter axle pin having a threaded portion is inserted with its smaller end entering the larger diameter bore of the first clevis arm. The threaded portion of the axle pin threadably engages either the threaded bore in the second clevis arm or the threaded mounting/pivot hole of the scissor element closest to the second clevis arm. In one embodiment, the bore in the second clevis arm is not threaded and the threaded portion of the axle pin engages only the threaded threaded mounting/pivot hole of the scissor element closest to the second clevis arm. Both ends of the axle pin float in respective clevis arm bores. In another embodiment where the scissor element closest to the second clevis arm is kept stationary, the threaded portion of the axle pin engages the threaded bore in the second clevis arm. The larger end of the axle pin floats in the large diameter bore of the first clevis arm. In a third embodiment, a washer is placed between the second clevis arm and the scissor element closest to it and the axle pin engages the threaded bore in the second clevis arm.
公开/授权文献
- US4812964A Signal tracing control system for PMC 公开/授权日:1989-03-14