Catheter introducer having toroidal valve
US5782817A · kind A · utility
298Cited by
12References
10Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 6, 1995 |
| Grant date | Jul 21, 1998 |
| Priority date | — |
| Expiry date | Nov 6, 2015 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2039/0673
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A catheter introducer defines a tubular sheath with a housing on one end thereof, with the housing enclosing a fluid-filled, elastic-walled toroidal member defining a central aperture aligned with the tubular sheath axis. The central aperture is normally closed, being retained in the closed position by an elastic sleeve carried by the toroidal member. The central aperture is penetrable by a catheter in sealing manner as the catheter is advanced through the catheter sheath introducer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.