Hemostatic catheter introducer
US5858007A · kind A · utility
76Cited by
13References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 3, 1996 |
| Grant date | Jan 12, 1999 |
| Priority date | — |
| Expiry date | Jul 3, 2016 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2039/0686
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A self-sealing hemostatic valve for use in a catheter apparatus is disclosed, comprising a proximal valve element having a sealing hole, a distal valve element having a flap and biasing means to enhance the force with which the flap bears against the distal side of the proximal valve element to normally seal the hole. The sealing hole seals about an instrument passed through the valve and the flap seals the valve when no instrument is present. The proximal face of the proximal valve element is provided with discontinuities that increase the flexibility of the proximal valve element in a distal direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.