Self protecting knife for curved jaw surgical instruments
US5797938A · kind A · utility
372Cited by
7References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 18, 1996 |
| Grant date | Aug 25, 1998 |
| Priority date | — |
| Expiry date | Nov 18, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2018/1432
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An electrosurgical hemostatic instrument including a curved end effector. A preferred embodiment of the invention provides a bipolar endoscopic clamping, coagulation and cutting device. In this device, a substantially straight, axially flexible knife is used to cut tissue grasped by the jaws of the end effector. The end effector includes a knife channel which is wider than the knife. The knife may include sacrificial contact points adapted to contact the walls of the knife channel as the knife moves through the channel, protecting the cutting edges of the knife blade from damage.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.