Invention Grant
- Patent Title: Pressure actuated flow control valve
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Application No.: US12492370Application Date: 2009-06-26
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Publication No.: US07959614B2Publication Date: 2011-06-14
- Inventor: W. Cary Dikeman , Thomas J. Solomon , Kerry L. Spiker
- Applicant: W. Cary Dikeman , Thomas J. Solomon , Kerry L. Spiker
- Applicant Address: US KS Lenexa
- Assignee: Nexus Medical, LLC
- Current Assignee: Nexus Medical, LLC
- Current Assignee Address: US KS Lenexa
- Agency: Hovey Williams LLP
- Main IPC: A61M5/00
- IPC: A61M5/00

Abstract:
A pressure actuated flow control valve for an infusion catheter permits gravity flow of a liquid through the catheter and into a patient while resisting back flow of blood from the patient and into the catheter. The valve has a hemispherical body with an outstanding circumferential flange and a normally closed, diametric slit. The slit is longer on the convex outer surface than on the concave inner surface. Dome thickness diminishes in the area adjacent the slit, reducing total apical deflection upon collapse of the slit toward the concave surface. An inner orthogonal rib biases the slit closed. Upon application of a predetermined pressure, the slit opens toward the concave surface to permit forward fluid flow. At lower pressures, the slit closes to check fluid flow. Greater reverse pressure is required to collapse the slit toward the concave surface to permit reverse fluid flow.
Public/Granted literature
- US20090264832A1 PRESSURE ACTUATED FLOW CONTROL VALVE Public/Granted day:2009-10-22
Information query
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