Grasping forceps for endoscope
US6605104B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 31, 1997 |
| Grant date | Aug 12, 2003 |
| Priority date | — |
| Expiry date | Mar 31, 2017 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/303
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A grasping forceps for an endoscope according to the present invention comprises a flexible insertion section, an operating wire passing through said insertion section and adapted to be advanced and retreated in accordance with an operation of an operating section connected to a hand side end of the operating wire, and an elastic grasping section arranged in the leading end portion of said operating wire and composed of at least four elastic grasping members different in length having a habit of so flexing that leading end grasping portions formed at the leading ends of said elastic grasping members spread outwards from a center axis of said insertion section, wherein the leading end grasping portions formed at the leading ends of the plurality of elastic grasping members different in length are spread in a spiral arrangement at the time of spreading of the elastic grasping section. On one hand, at least the leading end grasping portion to be disposed nearest to the insertion section leading end surface and the elastic grasping member having the leading end grasping portion to be disposed remotest from the insertion section leading end surface come in an inclined relationship at th…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.