Christopher G Dixon

US Patent:

7452371, Nov 18, 2008

Filed:

Feb 5, 2001

Appl. No.:

09/777091

Inventors:

Dusan Pavcnik - Portland OR, US
Frederick S. Keller - Portland OR, US
Josef Rosch - Portland OR, US
Thomas A. Osborne - Bloomington IN, US
Brian L. Bates - Bloomington IN, US
Christopher G. Dixon - Bloomington IN, US
Andrew K. Hoffa - Bloomington IN, US
Joseph F. Obermiller - Bloomington IN, US
John A. DeFord - Cleveland OH, US
Joseph W. Roberts - St. Paul MN, US

Assignee:

Cook Incorporated - Bloomington IN
Oregon Health & Science University - Portland OR
Cook Biotech, Inc. - West Lafayette IN

International Classification:

A61F 2/06
A61F 2/24

US Classification:

623 124, 623 212, 623 214, 623 217

Abstract:

A multiple-sided medical device comprises a frame comprising wire or other resilient material and having a series of bends and interconnecting sides. The device has both a flat configuration and a second, folded configuration which a generally serpentine shape. The device is pushed from a delivery catheter into the lumen of a duct or vessel and may include one or more barbs for anchoring purposes. A full or partial covering of fabric or other flexible material such as DACRON, PTFE, or a collagen-based material such as small intestinal submucosa (SIS), may be sutured or attached to the frame to form an occlusion device, a stent graft, or an implantable, intraluminal valve such as for correcting incompetent veins in the lower legs and feet.

US Patent:

7520894, Apr 21, 2009

Filed:

Jun 22, 2005

Appl. No.:

11/165600

Inventors:

Dusan Pavcnik - Portland OR, US
Frederick S. Keller - Portland OR, US
Josef Rosch - Portland OR, US
Thomas A. Osborne - Bloomington IN, US
Brian L. Bates - Bloomington IN, US
Christopher G. Dixon - Bloomington IN, US
Andrew K. Hoffa - Bloomington IN, US
Joseph F. Obermiller - Bloomington IN, US
John A. DeFord - Cleveland OH, US
Joseph W. Roberts - St. Paul MN, US

Assignee:

Cook Incorporated - Bloomington IN
Cook Biotech Incorporated - West Lafayette IN
Oregon Health & Science University - Portland OR

International Classification:

A61F 2/24
A61F 2/06

US Classification:

623 126, 623 212

Abstract:

A multiple-sided medical device comprises a frame comprising wire or other resilient material and having a series of bends and interconnecting sides. The device has both a flat configuration and a second, folded configuration which a generally serpentine shape. The device is pushed from a delivery catheter into the lumen of a duct or vessel and may include one or more barbs for anchoring purposes. A full or partial covering of fabric or other flexible material such as DACRON, PTFE, or a collagen-based material such as small intestinal submucosa (SIS), may be sutured or attached to the frame using heat or pressure welding crimping, adhesive, or other techniques to form an occlusion device, a stent graft, or an implantable, intraluminal valve such as for correcting incompetent veins in the lower legs and feet.

US Patent:

7871430, Jan 18, 2011

Filed:

Nov 27, 2002

Appl. No.:

10/307141

Inventors:

Dusan Pavcnik - Portland OR, US
Christopher G. Dixon - Bloomington IN, US
Jacob A. Flagle - Indianapolis IN, US
Mike Garrison - Bloomington IN, US
Andrew K. Hoffa - Bloomington IN, US
Ray Leonard, II - Bloomington IN, US
Brian C. Case - Bloomington IN, US

Assignee:

Cook Incorporated - Bloomington IN
Oregon Health & Science University - Portland OR

International Classification:

A61F 2/06

US Classification:

623 111, 623 112

Abstract:

A delivery system () for implanting a medical device () such as a venous valve into the vasculature of a patient. The delivery system includes a delivery catheter () having a device-containing portion () adjacent to the distal end () thereof, and an inner member () extending through the catheter and beyond the distal end thereof, to an atraumatic distal tip portion () forward of the catheter distal end. The inner member extends through the medical device in the device-containing region, includes a proximal portion () with a sufficiently large diameter to prevent longitudinal movement of the device as the catheter is retracted during deployment, and centers the device upon release from the distal catheter end during deployment.

US Patent:

8444687, May 21, 2013

Filed:

Feb 26, 2009

Appl. No.:

12/393819

Inventors:

Dusan Pavcnik - Portland OR, US
Frederick S. Keller - Portland OR, US
Josef Rosch - Portland OR, US
Thomas A. Osborne - Bloomington IN, US
Brian L. Bates - Bloomington IN, US
Christopher G. Dixon - Bloomington IN, US
Andrew K. Hoffa - Bloomington IN, US
Joseph F. Obermiller - Bloomington IN, US
John A. DeFord - Cleveland OH, US
Joseph W. Roberts - St. Paul MN, US

Assignee:

Cook Medical Technologies LLC - Bloomington IN
Cook Biotech Incorporated - West Lafayette IN
Oregon Health Science University - Portland OR

International Classification:

A61F 2/06
A61F 2/24

US Classification:

623 124, 623 126, 623 214, 623 217

Abstract:

A multiple-sided medical device comprises a frame comprising wire or other resilient material and having a series of bends and interconnecting sides. The device has both a flat configuration and a second, folded configuration which a generally serpentine shape. The device is pushed from a delivery catheter into the lumen of a duct or vessel and may include one or more barbs for anchoring purposes. A full or partial covering of fabric or other flexible material such as DACRON, PTFE, or a collagen-based material such as small intestinal submucosa (SIS), may be sutured or attached to the frame using heat or pressure welding crimping, adhesive, or other techniques to form an occlusion device, a stent graft, or an implantable, intraluminal valve such as for correcting incompetent veins in the lower legs and feet.

US Patent:

8613763, Dec 24, 2013

Filed:

Oct 27, 2008

Appl. No.:

12/258757

Inventors:

Dusan Pavcnik - Portland OR, US
Frederick S. Keller - Portland OR, US
Josef Rosch - Portland OR, US
Thomas A. Osborne - Bloomington IN, US
Brian L. Bates - Bloomington IN, US
John A. DeFord - Bloomington IN, US
Christopher G. Dixon - Bloomington IN, US
Andrew K. Hoffa - Bloomington IN, US
Joseph F. Obermiller - Bloomington IN, US

Assignee:

Cook Medical Technologies LLC - Bloomington IN
Cook Biotech Incorporated - West Lafayette IN
Oregon Health Science University - Portland OR

International Classification:

A61F 2/06
A61F 2/24

US Classification:

623 124, 623 126, 623 214, 623 217

Abstract:

A multiple-sided medical device comprises a frame comprising wire or other resilient material and having a series of bends and interconnecting sides. The device has both a flat configuration and a second, folded configuration which a generally serpentine shape. The device is pushed from a delivery catheter into the lumen of a duct or vessel and may include one or more barbs for anchoring purposes. A full or partial covering of fabric or other flexible material such as DACRON, PTFE, or a collagen-based material such as small intestinal submucosa (SIS), may be sutured or attached to the frame to form an occlusion device, a stent graft, or an implantable, intraluminal valve such as for correcting incompetent veins in the lower legs and feet.

US Patent:

20050228479, Oct 13, 2005

Filed:

Jun 9, 2005

Appl. No.:

11/149721

Inventors:

Dusan Pavcnik - Portland OR, US
Brian Case - Bloomington IN, US
Christopher Dixon - Bloomington IN, US
Jacob Flagle - Indianapolis IN, US
Michael Garrison - Indianapolis IN, US
Andrew Hoffa - Bloomington IN, US
Ray Leonard - Bloomington IN, US

International Classification:

A61F002/06

US Classification:

623001110, 604524000

Abstract:

A delivery system () for implanting a medical device () such as a venous valve into the vasculature of a patient. The delivery system includes a delivery catheter () having a device-containing portion () adjacent to the distal end () thereof, and an inner member () extending through the catheter and beyond the distal end thereof, to an atraumatic distal tip portion () forward of the catheter distal end. Delivery catheter () includes inner tube (), flat wire coil () compression fitted therearound, and outer tube () mechanically connected to roughened outer surface () of the inner tube through the spacing of the coil. Delivery catheter () can be provided with a window () to allow fluoroscopic visualization of a stent valve within the delivery system.