Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Anthony Nobles0
Christian Willer0
Date of Patent
January 22, 2019
0Patent Application Number
151317140
Date Filed
April 18, 2016
0Patent Citations Received
...
Patent Primary Examiner
Patent 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.
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