Surgical stapling instrument with an anti-back up mechanism
US7604150B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Jun 22, 2007 |
| Grant date | Oct 20, 2009 |
| Priority date | — |
| Expiry date | Sep 13, 2027 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/2946
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical instrument including a firing drive configured to advance a cutting member and/or staple driver within an end effector, and a brake configured to prevent, or at least partially inhibit, the relative movement of the cutting member and/or staple driver. The surgical instrument can further include a firing member operably engaged with the cutting member, for example, a band connected to the firing member, and a reel, where the band can be configured to be wound around the reel. In various embodiments, the brake can be selectively engageable with the reel and/or band to prevent, or limit, the movement of the band. The brake can include a brake surface where relative movement between the band and the brake surface can generate a friction force therebetween which can hold the firing member in position until a sufficient force is applied to the firing member to overcome the friction force.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.