Flexible inflow/outflow cannula
US5527276A · kind A · utility
40Cited by
12References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 13, 1994 |
| Grant date | Jun 18, 1996 |
| Priority date | — |
| Expiry date | May 13, 2014 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B17/3417
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A flexible plastic cannula for use in directing liquid to or from the suprapatellar pouch during arthroscopic knee surgery. The cannula is comprised of a flexible elongated stem, a valve housing and an attachment means, all molded in a single piece of high density polyethylene. The stem is tapered along its length so that the end nearest the valve housing is relatively rigid, while the distal end is narrower and more flexible. The flexibility of the cannula stem is sufficient to allow it to bend with the knee during the arthroscopic surgery.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.