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 defining a lumen. The catheter also has a spring 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 spring 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 spring, twisting the spring, or pulling on a cord coupled with the valve.
Claims15
A catheter valve, comprising:
- a conduit defining a lumen, and having a proximal end and a distal end;
- a spring configured to bias the lumen from an open position to a closed position by altering an effective length of the conduit by at least 1 mm;
- wherein the spring comprises a plurality of resilient fingers curvatively disposed on an outer surface of the conduit, such that at least one of the proximal and distal ends rotate with respect to the other when the valve moves between the open position and the closed position;
- and
- wherein each of the resilient fingers comprises an elastomeric material capable of elastic deformation.
A catheter for insertion into a vascular structure comprising:
- an elongated body having a proximal end and a distal end;
- a valve positioned at the distal end, wherein the valve comprising:
- a conduit defining a lumen, and the conduit has a first end and a second end;
- a spring configured to bias the lumen from an open position to a closed position by altering an effective length of the conduit by at least 1 mm;
- and
- wherein the spring comprises a plurality of resilient fingers curvatively disposed on an outer surface of the conduit, such that at least one of the first end and the second end rotate with respect to the other when the valve moves between the open position and the closed positional;
- and
- wherein each of the resilient fingers comprises an elastomeric material capable of elastic deformation.
Dependencies are inferred from the claim text.