Adjustable diameter hemostatic valve
US9440059B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 1, 2012 |
| Grant date | Sep 13, 2016 |
| Priority date | — |
| Expiry date | Jun 19, 2033 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M39/0613
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A hemostatic valve device for use in inserting an interventional device into a body lumen of a patient. The valve device includes a housing that defines a cavity between first and second end openings. A valve structure is disposed within the cavity, and defines a variable diameter channel for receiving the interventional device. An annular chamber is generally formed between the valve structure and the housing inner surface, and can be filled with fluid. The housing is movable between first and second positions so that the volume of the cavity and the diameter of the channel vary to a degree for the valve structure to form a seal along the interventional device inserted within the channel. The valve structure may be configured to seal without substantial twisting.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.