Christopher J O'Keefe

US Patent:

7670332, Mar 2, 2010

Filed:

Jul 6, 2005

Appl. No.:

11/174618

Inventors:

Christopher R. O'Keefe - Holliston MA, US
John O. McWeeney - Brighton MA, US

Assignee:

Boston Scientific Scimed, Inc. - Maple Grove MN

International Classification:

A61M 27/00

US Classification:

604544, 604 8, 604 9, 604249, 60428803, 604537, 604540, 600 29, 600 30, 600 31, 623 2364, 623 2365, 623 2368, 623 237, 137854

Abstract:

An anti-reflux drainage device includes an elongated member defining a lumen, and a valve disposed along the elongated member. The valve can include one or more lumens in fluid connection with the lumen of the elongated member, a socket, a shaft disposed in the socket, and a stopper connected to the shaft that occludes the second lumen when exposed to retrograde pressure. Another such device includes an elongated member and a ball valve. The ball valve can include a seat and a shoulder defined by the elongated member, and a ball disposed in the elongated member between the seat and shoulder that occludes lumen when exposed to retrograde pressure.

US Patent:

20030069552, Apr 10, 2003

Filed:

Oct 9, 2001

Appl. No.:

09/973660

Inventors:

Christopher O'Keefe - Holliston MA, US
John McWeeney - Brighton MA, US

International Classification:

A61M025/16

US Classification:

604/278000, 604/537000, 604/538000

Abstract:

An anti-reflux drainage device includes an elongated member defining a lumen, and a valve disposed along the elongated member. The valve can include one or more lumens in fluid connection with the lumen of the elongated member, a socket, a shaft disposed in the socket, and a stopper connected to the shaft that occludes the second lumen when exposed to retrograde pressure. Another such device includes an elongated member and a ball valve. The ball valve can include a seat and a shoulder defined by the elongated member, and a ball disposed in the elongated member between the seat and shoulder that occludes lumen when exposed to retrograde pressure.