Warren P Williamson

US Patent:

6565581, May 20, 2003

Filed:

Aug 17, 2000

Appl. No.:

09/641284

Inventors:

Paul A. Spence - Louisville KY
Warren P. Williamson IV - Loveland OH
George Christakis - Toronto, CA
Mark Ortiz - Milford OH
Craig B. Berky - Milford OH
Douglas P. Allen - Lyons CO
Matthew J. Huddleston - Blacklick OH
Delbert Ted Leimbach - Goose Creek SC
Cecil R. Robinson - Hilliard OH
E. Dale VanHoose - Columbus OH
Thomas J. Ward - Grandview Heights OH
Marty J. Warnecke - Grandview Heights OH

Assignee:

Origin Medsystems, Inc. - Menlo Park CA

International Classification:

A61B 1708

US Classification:

606153

Abstract:

An anastomosis is performed using a flexible mounting structure mounted on the outside of at least one vessel. Fasteners extend through the vessel and are bent towards the incision to attach the flexible mounting structure to the vessel in a manner that controls the edge of the vessel adjacent to the incision. The mounting structures are oriented on each vessel so fasteners on one mounting structure interdigitate with fasteners on the other mounting structure at the location of contact between the vessels when the two vessels are brought together. This creates two complementary sinusoidal-shaped vessel edges with peaks of one edge being accommodated in the valleys of the other edge. The peak-to-valley orientation forms a sinusoidal-shaped joint which is leak free. The fasteners are spaced so proper pressure is applied to the tissue to promote healing without leaking. Furthermore, the fasteners are sized and shaped to properly engage the tissue and bend in a desired manner.

US Patent:

RE44075, Mar 12, 2013

Filed:

Jun 5, 2008

Appl. No.:

12/134170

Inventors:

Warren P. Williamson - Loveland OH, US
Paul A. Spence - Louisville KY, US
George T. Christakis - Toronto, CA
Mark Ortiz - Milford OH, US

Assignee:

Medtronic, Inc. - Minneapolis MN

International Classification:

A61F 2/24

US Classification:

623 211, 606153, 623 241, 623 2368

Abstract:

A heart valve can be replaced using minimally invasive methods which include a sutureless sewing cuff that and a fastener delivery tool that holds the cuff against the patient's tissue while delivering fasteners to attach the cuff to the tissue from the inside out. The tool stores a plurality of fasteners and is self-contained whereby a fastener is delivered and placed all from inside a vessel. The fasteners are self-forming whereby they do not need an anvil to be formed. Anchor elements are operated from outside the patient's body to cinch a prosthesis to an anchoring cuff of the valve body. The cuff is releasably mounted on the tool and the tool holds the cuff against tissue and drives the fastener through the cuff and the tissue before folding over the legs of the fastener whereby secure securement between the cuff and the tissue is assured. Fasteners are placed and formed whereby fasteners are located continuously throughout the entire circumference of the cuff. A minimally invasive surgical method is disclosed, and a method and tool are disclosed for repairing abdominal aortic aneurysms in a minimally invasive manner.

US Patent:

20010039424, Nov 8, 2001

Filed:

Jun 26, 2001

Appl. No.:

09/892235

Inventors:

Paul Spence - Louisville KY, US
Warren Williamson - Loveland OH, US
George Christakis - Toronto, CA

International Classification:

A61B017/08

US Classification:

606/153000

Abstract:

An anastomosis is performed using a mounting structure mounted on the outside of at least one vessels The mounting structure includes a flexible mounting structure that is attached to the vessel by a special instrument. A graft vessel is attached to the mounting structure either directly or by means of another mounting structure attached to the graft vessel. Tools for attaching a mounting structure to a vessel are disclosed, and a tool for attaching two mounting structures together is also disclosed. Methods for carrying out the anastomosis according to the invention are also disclosed.

US Patent:

20010041827, Nov 15, 2001

Filed:

May 29, 1998

Appl. No.:

09/087511

Inventors:

PAUL A. SPENCE - LOUISVILLE KY, US
WARREN P. WILLIAMSON - LOVELAND OH, US
MARK ORTIZ - MILFORD OH, US

Assignee:

Alan W. Cannon

International Classification:

A61B001/32

US Classification:

600/201000

Abstract:

A system for manipulating a heart during cardiac surgery links lifting of the heart and regional immobilization which stops one part of the heart from moving to allow expeditious suturing while permitting other parts of the heart to continue to function whereby coronary surgery can be performed on a beating heart while maintaining cardiac output unabated and uninterrupted. Circumflex coronary artery surgery can be performed using the system for manipulating a heart during cardiac surgery of the present invention. The system is an improvement on the retractor disclosed in parent application Ser. No. 08/936,184 filed on Sep. 17, 1997 and locates a suspension head near the apical region of the heart and a gross support near the base of the heart near the AV groove. A frame is positioned within the patient's thoracic region and moves with the patient, and a surgical target immobilizer can be used to assist in the movement of the heart if desired. A special suction cup is used which accommodates multiplanar movement of the heart and the myocardium while also preventing heart tissue from interrupting the suction being applied to the heart. One form of the system can be used in minimally invasive surgery.

US Patent:

20010044656, Nov 22, 2001

Filed:

May 6, 1999

Appl. No.:

09/306448

Inventors:

WARREN P. WILLIAMSON - LOVELAND OH, US
PAUL A. SPENCE - LOUISVILLE KY, US
GEORGE T. CHISTAKIS - TORONTO, CA
MARK ORTIZ - MILGORD OH, US

International Classification:

A61F002/24

US Classification:

623/002110, 623/002410, 623/902000

Abstract:

A heart valve can be replaced using minimally invasive methods which include a sutureless sewing cuff that and a fastener delivery tool that holds the cuff against the patient's tissue while delivering fasteners to attach the cuff to the tissue from the inside out. The tool stores a plurality of fasteners and is self-contained whereby a fastener is delivered and placed all from inside a vessel. The fasteners are self-forming whereby they do not need an anvil to be formed. Anchor elements are operated from outside the patient's body to cinch a prosthesis to an anchoring cuff of the valve body. The cuff is releasably mounted on the tool and the tool holds the cuff against tissue and drives the fastener through the cuff and the tissue before folding over the legs of the fastener whereby secure securement between the cuff and the tissue is assured. Fasteners are placed and formed whereby fasteners are located continuously throughout the entire circumference of the cuff. A minimally invasive surgical method is disclosed, and a method and tool are disclosed for repairing abdominal aortic aneurysms in a minimally invasive manner. Fasteners that are permanently deformed during the process of attaching the cuff are disclosed as are fasteners that are not permanently deformed during the attaching process.

US Patent:

20020049369, Apr 25, 2002

Filed:

Dec 20, 2001

Appl. No.:

10/025941

Inventors:

Paul Spence - Louisville KY, US
Warren Williamson - Loveland OH, US

International Classification:

A61B001/32

US Classification:

600/210000

Abstract:

A heart retractor links lifting of the heart and regional immobilization which stops one part of the heart from moving to allow expeditious suturing while permitting other parts of the heart to continue to function whereby coronary surgery can be performed on a beating heart while maintaining cardiac output unabated and uninterrupted. Circumflex coronary artery surgery can be performed using the heart retractor of the present invention. The retractor includes a plurality of flexible arms and a plurality of rigid arms as well as a surgery target immobilizing element. One form of the retractor can be used in minimally invasive surgery, while other forms of the retractor can accommodate variations in heart size and paracardial spacing.

US Patent:

20020065451, May 30, 2002

Filed:

Dec 28, 2001

Appl. No.:

10/029792

Inventors:

Paul Spence - Louisville KY, US
Warren Williamson - Loveland OH, US

International Classification:

A61B001/32

US Classification:

600/201000

Abstract:

Mechanical elements and/or adhesive is used in conjunction with or in place of suction to releasably attach elements of a system for manipulating a heart during cardiac surgery to the heart. The elements of the heart manipulation system are disclosed in the application Ser. No. 09/087,511 filed on May 29, 1998 and in the patent application Ser. No. 08/936,184 filed on Sep. 17, 1997. One form of the system can be used in minimally invasive surgery.

US Patent:

20020068949, Jun 6, 2002

Filed:

Jan 17, 2002

Appl. No.:

10/052129

Inventors:

Warren Williamson - Loveland OH, US
Paul Spence - Louisville KY, US
George Keller - Grandview Heights OH, US
Cecil Robinson - Hilliard OH, US
Thomas Ward - Columbus OH, US

International Classification:

A61B017/08

US Classification:

606/151000, 606/139000

Abstract:

Wire fasteners having legs with lengths that can be one hundred times the width of the fastener are used to secure items, such as prosthesis valves to a patient during minimally invasive surgery. The fasteners are manipulated into position and then are immobilized by means of the legs thereof for tensioning, cutting and forming in situ. The fasteners are manipulated, tensioned and formed from the leg end of the fasteners. Tools for initially placing the fasteners and for immobilizing, tensioning, cutting and bending the fastener legs are disclosed. Once the fasteners are initially placed, the prosthesis is placed on the long legs of the placed fasteners and is guided into position on the legs. Once the prosthesis is in position, the legs of the fasteners are immobilized, tensioned, cut and bent into staple-like shapes to secure the prosthesis to the patient. A method for carrying out the procedure using the long fastener is also disclosed. Using the teaching of the present disclosure, a surgeon can customize a fastener to the particular surgery or even to the particular portion of surgery being performed during the surgery.

Address:

101 Southbend Ct, Loveland, OH 45140

Phone:

(513)5831906

VIN:

WP0AC29997S792124

Make:

PORSCHE

Model:

911

Year:

2007