Implantable three-way diaphragm valve

US8882694B2 · kind B2 · utility

Assignee

• THE JOHNS HOPKINS UNIVERSITY · US

Inventors

• Yuan-Ping Li · Duluth, US
• Sherri Jane Hall · Cary, US
• Kelvin Hong · Elkton, US
• Shishira Nagesh · Santa Rosa, US
• Mary Katherine O'Grady · Baltimore, US
• Thomas Reifsnyder · Baltimore, US
• Thora Thorgilsdottir · Reykjavík, IS
• Clifford R. Weiss · Baltimore, US
• Brandon Doan · Peoria, US
• Soumyadipta Acharya · Baltimore, US

Key dates

• Filing date: Jun 4, 2012
• Grant date: Nov 11, 2014
• Expiry date: Jun 4, 2032

Classification

• Technology area (CPC A): Human Necessities
• CPC primary: A61M2039/0276
• WIPO field: Medical technology
• WIPO sector: Instruments

Abstract

An embodiment in accordance with the present invention provides a valve including a housing having a top portion and a bottom portion. The top portion of the housing defines a first and second nozzle, and the bottom portion of the housing defines an opening. A diaphragm has an open position and a closed position, and the diaphragm is disposed between the top portion of the housing and the bottom portion of the housing. A first fluid flow path between the first nozzle and the second nozzle is defined by the housing and the diaphragm, when the diaphragm is in the closed position. A second fluid flow path between the opening and the first nozzle is defined by the housing and the diaphragm, when the diaphragm is in the open position. Such a valve can be used for a number of purposes including hemodialysis procedures.