Surgical instrument comprising first and second drive systems actuatable by a common trigger mechanism
US8939974B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 9, 2009 |
| Grant date | Jan 27, 2015 |
| Priority date | — |
| Expiry date | Feb 11, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2218/008
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical instrument can comprise a first drive system for advancing a knife bar between a first position and a second position in order to close a jaw, or clamping, member of an end effector. The first drive system can comprise a toggle clamp which can generate and transmit an asymptotical clamping load to the jaw member. The surgical instrument can further comprise a second drive system for advancing the knife bar between the second position and a third position. The second drive system can comprise a rack and pinion system and the surgical instrument can comprise a single trigger for actuating both the first drive system and the second drive system on the same stroke.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.