Susan M O'Brien

US Patent:

7455657, Nov 25, 2008

Filed:

Jun 19, 2001

Appl. No.:

09/883178

Inventors:

Wendy Naimark - Cambridge MA, US
Susan O'Brien - Boston MA, US
Brandon Shuman - Kirkland WA, US

Assignee:

Boston Scientific Scimed, Inc - Maple Grove MN

International Classification:

A61M 37/00
A61M 25/00

US Classification:

604 82, 604523

Abstract:

Method and apparatus to modify a fluid by passing a compound through a selectively permeable membrane is provided. In one embodiment a fluid moving through a vessel is modified prior to its ejection from the vessel. This may be accomplished by urging the fluid into a mixing chamber wherein the mixing chamber is in fluid communication with an exit orifice and a passageway. This passageway may be in communication with a second chamber through a selectively permeable membrane. The fluid may then be altered by passing a compound between the mixing chamber and the second chamber through the passageway and the selectively permeable membrane. A device for modifying a fluid moving through a vessel may contain a first lumen, a second lumen, an exit orifice, and a mixing chamber in communication with the first lumen and the exit orifice.