Hemostasis valve, system and assembly
US6221057A · kind A · utility
51Cited by
44References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jan 29, 1999 |
| Grant date | Apr 24, 2001 |
| Priority date | — |
| Expiry date | Jan 29, 2019 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2039/0673
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A hemostasis valve including a collapsible membrane in a portion of a through-lumen. Fluid pressure in a chamber surrounding the collapsible membrane assists in sealing the collapsible membrane around an operating device inserted through the hemostasis valve. Different mechanisms for mechanically deforming the collapsible membrane to assist in sealing are disclosed. Also, a system for continuously flushing a vascular catheter connected to a hemostasis valve at a rate of 0.10 to 10.0 cubic centimeters per minute, and a hemostasis valve assembly including an expandable reservoir which stores liquid volume under pressure.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.