ROGER WILLIAM STEVENS
Pilots at 5 St, San Jose, CA
License number
California A1829135
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
690 N 5Th St APT 416, San Jose, CA 95112
Professional information
Rapid-Exchange Balloon Catheter Shaft And Method
US Patent:
7815600, Oct 19, 2010
Filed:
Jan 11, 2008
Appl. No.:
12/008509
Inventors:
Laila Al-Marashi - Mountain View CA, US
David Grewe - West Lafayette IN, US
Stephen Griffin - San Jose CA, US
Elaine Lim - Fremont CA, US
David Majercak - Stewartsville NJ, US
Roger Stevens - San Jose CA, US
David Grewe - West Lafayette IN, US
Stephen Griffin - San Jose CA, US
Elaine Lim - Fremont CA, US
David Majercak - Stewartsville NJ, US
Roger Stevens - San Jose CA, US
Assignee:
Cordis Corporation - Miami Lakes FL
International Classification:
A61M 31/00
US Classification:
60410304, 604 9601
Abstract:
A rapid-exchange balloon catheter or stent delivery system, for medically treating a patient, has a proximal hub, a balloon, and an improved shaft design. The catheter shaft has a tubular outer body that includes a hypotube extending from the catheter proximal end to a position at or near the proximal leg of the balloon. An inner tubular body defines a guidewire lumen and extends from a distal guidewire port at the catheter distal end to proximal guidewire port located between the balloon and the proximal hub. The hypotube has an aperture for accepting the inner body proximal end and a circumferential cut pattern. The cut pattern adds flexibility and may have any desired shape, including a spiral, a helical undulating path, or an overlapping serpentine path with inflection points, for example. The proximal guidewire port may be positioned on or in between the individual portions of the cut pattern.
Rapid-Exchange Balloon Catheter Shaft And Method
US Patent:
8454673, Jun 4, 2013
Filed:
Oct 18, 2010
Appl. No.:
12/906976
Inventors:
Laila Al-Marashi - Mountain View CA, US
David Grewe - Glen Gardner NJ, US
Stephen Griffin - San Jose CA, US
Elaine Lim - Fremont CA, US
David Majercak - Stewartsville NJ, US
Roger Stevens - San Jose CA, US
David Grewe - Glen Gardner NJ, US
Stephen Griffin - San Jose CA, US
Elaine Lim - Fremont CA, US
David Majercak - Stewartsville NJ, US
Roger Stevens - San Jose CA, US
Assignee:
Cordis Corporation - Bridgewater NJ
International Classification:
A61F 2/84
US Classification:
623 111, 60410102
Abstract:
A balloon catheter or stent delivery system for medical treatment of a patient has a proximal hub, a balloon, and an improved shaft design. The catheter shaft has a rapid-exchange configuration, and a tubular outer body that includes a hypotube extending from the catheter proximal end to a position at or near a proximal leg of the balloon. An inner tubular body defines a guidewire lumen extending from a distal guidewire port at the catheter distal end to a proximal port located at a position between the balloon and the hub. A distal leg of the balloon is directly or indirectly affixed to the inner body, and a proximal leg of the balloon is affixed to the distal end of the outer body. The hypotube has an aperture for accepting the inner body proximal end, and a circumferential cut pattern. The cut pattern adds flexibility, and may extend from the hypotube distal end to a position proximal of the proximal guidewire port. The cut pattern may have any desired shape, including a spiral, a helical undulating path, or an overlapping serpentine path with inflection points, for example.