Surgical instrument end effector articulation drive with pinion and opposing racks
US9186142B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 28, 2013 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Jul 28, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/2946
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus comprises a body and a shaft assembly. The shaft assembly is in communication with the body and comprises an end effector, first cam gear, second cam gear, and a lock bar. The end effector has an articulation joint. The first cam gear is rotatably positioned within the shaft assembly. The second cam gear is in communication with the end effector at the articulation joint. The lock bar is distally biased to lock against the second cam gear. The first cam gear is rotatable through a first range of motion to unlock the lock bar relative to the second cam gear. The first cam gear is rotatable through a second range of motion to rotate the end effector at the articulation joint.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.