Body fluid flow control device
US7276077B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 3, 2003 |
| Grant date | Oct 2, 2007 |
| Priority date | — |
| Expiry date | Sep 6, 2024 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61F2210/0033
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
A device to provide body fluid flow control in the form of a valve to be located within a duct or passageway. The device is controlled through pressure above a preselected threshold. Bulk resilience about a passageway in a valve body provides the mechanism for controlled flow. One-way valve operation may be provided through a flap or through a pressure differential on the valve body depending upon the direction of flow. A frame structure positioned within a resilient seal includes longitudinally elongated elements which may be of spring material, malleable material or heat recoverable material so as to accomplish an initial insertion state and an expanded anchoring state. A valve support transitions between the resilient seal portion and the valve body to insure that the states do not change the threshold opening pressure. Insertion devices may be employed to position and actuate a change of state of the frame in the body duct or passageway.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.