Constriction valve
AssigneeHeartStitch, Inc.
InventorsAnthony Nobles, Christian Willer
Life of this patent
Estimating the term…
Abstract
Constriction valves for catheters and method of using constriction valves are presented. The catheter valve has a conduit comprising mesh defining a lumen. The catheter also has a biasing member that is configured to bias the lumen from an open position to a closed position by altering an effective length of the conduit or altering the circumference of the conduit. The biasing member is further configured to change its configuration by changes of intraluminal pressure of the valve. A user can insert a tool into a catheter having a valve by manipulating the valve to expand a substantially closed lumen by compressing the biasing member, twisting the biasing member, or pulling on a cord coupled with the valve.
Claims13
A catheter valve, comprising:
- a conduit having a proximal end and a distal end, wherein the conduit defines a lumen, and further wherein the conduit comprises a mesh having at least a portion that is elastomeric;
- a biasing member disposed between the proximal end and the distal end of the conduit;
- wherein the biasing member comprises (1) an extended configuration in which the biasing member is configured to stretch the conduit outwardly along an axis to thereby cause the lumen to decrease to a first diameter and partially close the conduit, and (2) a compressed configuration above a first intraluminal pressure in which the biasing member is compressed to thereby allow the conduit to collapse inwardly along the axis and cause the lumen to increase from the first diameter to a second diameter to open the conduit.
Dependencies are inferred from the claim text.