Pinion blade drive mechanism for a laparoscopic vessel dissector
US10265118B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | May 4, 2010 |
| Grant date | Apr 23, 2019 |
| Priority date | — |
| Expiry date | Jun 5, 2036 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/1455
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A surgical instrument comprises a handle assembly including an actuator mounted for manipulation through an actuation stroke. An elongate shaft extends distally from the handle assembly and defines a longitudinal axis. A reciprocating member extends at least partially through the elongate shaft, and is mounted for longitudinal motion through the elongate shaft in response to manipulation of the actuator through the actuation stroke. A drive mechanism includes a first rotating component coupled to the actuator about a first circumference to induce rotational motion in the first rotating component. A second rotating component is coupled to the first rotating component such that rotational motion in the first rotating component induces rotational motion in the second rotating component. The second rotating component is coupled to the reciprocating member about a second circumference such that rotational motion of the second rotating component induces longitudinal motion in the reciprocating member. The second circumference is greater than the first circumference.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.