Electrical surgical instrument with knife return
US9675348B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2013 |
| Grant date | Jun 13, 2017 |
| Priority date | — |
| Expiry date | Feb 8, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2090/064
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
Electrically operated surgical instrument, comprising a handle having a power supply; a drive assembly having an electrical motor, a controller electrically connected to the power supply and motor, and a drive part selectively moved by the motor between a fully extended position and a fully retracted position; and a control assembly operably connected to the motor to control a rotation of the motor; an end effector having a tissue-cutting assembly comprising: a blade connected to the drive part to move between opposing compression surfaces over the course of a blade stroke to cut tissue compressed between the compression surfaces, the blade stroke being comprised of the drive part advancing the blade towards the tissue to an extended position and retreating proximally to a retracted position, the control assembly being operable to selectively cause the motor to automatically retreat the drive part to place the blade in the retracted position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.