Body fluid flow control device
First Claim
1. A body fluid flow control device comprising a resilient seal of substantially annular configuration;
- a frame extending within at least a portion of the resilient seal and including a passageway extending longitudinally through the frame and at least one longitudinally extending element having an insertion state and an anchoring state, the anchoring state being with the at least one longitudinally extending element outwardly of the insertion state, thereby expanding the portion of the resilient seal within which the frame extends, the passageway being inwardly of the at least one longitudinally extending element;
a valve body having bulk resilience and a passage therethrough resiliently biased closed by the bulk resilience and communicating with the passageway;
a valve support about the valve body and attached to the valve body and to the resilient seal, the passage being in communication with the passageway extending longitudinally through the frame.
3 Assignments
0 Petitions
Accused Products
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 elongate 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.
476 Citations
15 Claims
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1. A body fluid flow control device comprising
a resilient seal of substantially annular configuration; -
a frame extending within at least a portion of the resilient seal and including a passageway extending longitudinally through the frame and at least one longitudinally extending element having an insertion state and an anchoring state, the anchoring state being with the at least one longitudinally extending element outwardly of the insertion state, thereby expanding the portion of the resilient seal within which the frame extends, the passageway being inwardly of the at least one longitudinally extending element;
a valve body having bulk resilience and a passage therethrough resiliently biased closed by the bulk resilience and communicating with the passageway;
a valve support about the valve body and attached to the valve body and to the resilient seal, the passage being in communication with the passageway extending longitudinally through the frame. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
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Specification