Jonathan P Root

US Patent:

6551268, Apr 22, 2003

Filed:

Apr 14, 2000

Appl. No.:

09/550356

Inventors:

Alan L. Kaganov - Portola Valley CA
Jonathan D. Root - San Francisco CA
John McKenzie - San Carlos CA

Assignee:

Embol-X, Inc. - Mountain View CA

International Classification:

A61M 500

US Classification:

604 8, 604200, 604159

Abstract:

A shunt and method of use for maintaining distal blood flow during an arteriotomy procedure is disclosed. The shunt includes a first tubular member having a proximal end, a distal end, and a lumen therebetween. The proximal end has an opening in communication with the lumen, and the proximal opening is adapted to receive blood from a first region of an artery. The distal end has an opening in communication with the lumen, and the distal opening is adapted to release blood into a second region of the artery. The shunt includes a second tubular member having a proximal end, a distal end, and a lumen therebetween which either merges and communicates at its distal end with the lumen of the first tubular member, or rides separate and parallel to it. The shunt also includes a hemostatic valve attached to the proximal end of the second tubular member, the valve acting to prevent loss of blood from the lumen of the second tubular member and to permit the introduction of a medical device into the lumen of the second tubular member and into the artery. In use, the distal opening of the shunt is inserted into the second region of an artery and secured to the lumen of the artery.

US Patent:

6689084, Feb 10, 2004

Filed:

Feb 12, 2003

Appl. No.:

10/366117

Inventors:

Alan L. Kaganov - Portola Valley CA
Jonathan D. Root - San Francisco CA
John McKenzie - San Carlos CA

Assignee:

Edwards Lifescience Corporation - Irvine CA

International Classification:

A61M 500

US Classification:

604 8, 600200, 600159

Abstract:

A method for carotid endarterectomy. A blood filter is positioned within a carotid artery downstream of an atheromatous plaque. The filter is expanded. The carotid artery is clamped upstream and downstream of the atheromatous plaque while the filter is expanded. An endarterectomy procedure is performed on the region of the carotid artery having the atheromatous plaque. The carotid artery is unclamped while the filter is expanded. In certain cases a shunt is positioned in a region of the carotid artery having the atheromatous plaque and secured to the shunt by clamping, the shunt comprising a tubular member having a proximal opening, a distal opening, and a lumen therebetween.

US Patent:

60743573, Jun 13, 2000

Filed:

Oct 21, 1998

Appl. No.:

9/176145

Inventors:

Alan L. Kaganov - Portola Valley CA
Jonathan D. Root - San Francisco CA
John McKenzie - San Carlos CA

Assignee:

Embol-X, Inc. - Mountain View CA

International Classification:

A61M 500

US Classification:

604 8

Abstract:

A shunt and method of use for maintaining distal blood flow during an arteriotomy procedure is disclosed. The shunt includes a first tubular member having a proximal end, a distal end, and a lumen therebetween. The proximal end has an opening in communication with the lumen, and the proximal opening is adapted to receive blood from a first region of an artery. The distal end has an opening in communication with the lumen, and the distal opening is adapted to release blood into a second region of the artery. The shunt includes a second tubular member having a proximal end, a distal end, and a lumen therebetween which either merges and communicates at its distal end with the lumen of the first tubular member, or rides separate and parallel to it. The shunt also includes a hemostatic valve attached to the proximal end of the second tubular member, the valve acting to prevent loss of blood from the lumen of the second tubular member and to permit the introduction of a medical device into the lumen of the second tubular member and into the artery. In use, the distal opening of the shunt is inserted into the second region of an artery and secured to the lumen of the artery.

US Patent:

58763678, Mar 2, 1999

Filed:

Dec 5, 1996

Appl. No.:

8/759591

Inventors:

Alan L. Kaganov - Portola Valley CA
Jonathan D. Root - San Francisco CA
John McKenzie - San Carlos CA

Assignee:

Embol-X, Inc. - Portola Valley CA

International Classification:

A61M 500

US Classification:

604 8

Abstract:

A shunt and method of use for maintaining distal blood flow during an arteriotomy procedure is disclosed. The shunt includes a first tubular member having a proximal end, a distal end, and a lumen therebetween. The proximal end has an opening in communication with the lumen, and the proximal opening is adapted to receive blood from a first region of an artery. The distal end has an opening in communication with the lumen, and the distal opening is adapted to release blood into a second region of the artery. The shunt includes a second tubular member having a proximal end, a distal end, and a lumen therebetween which either merges and communicates at its distal end with the lumen of the first tubular member, or rides separate and parallel to it. The shunt also includes a hemostatic valve attached to the proximal end of the second tubular member, the valve acting to prevent loss of blood from the lumen of the second tubular member and to permit the introduction of a medical device into the lumen of the second tubular member and into the artery. In use, the distal opening of the shunt is inserted into the second region of an artery and secured to the lumen of the artery.