Cannula reducer
US5437646A · kind A · utility
63Cited by
24References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 27, 1993 |
| Grant date | Aug 1, 1995 |
| Priority date | — |
| Expiry date | May 27, 2013 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/7885
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A laparoscopy cannula reducer has at its proximal end a resilient end seal carrying a resilient tri-cuspid valve; the valve is passive, yet allows sealing of a body cavity in surgical procedures to prevent fluid flow between the atmosphere and the body cavity, both when an instrument is carried within the cannula and when the cannula is not being used for passage of an instrument to the body and the reducer has handgripping portions for applying and disengaging the reducer over a laparoscopy cannula.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.