Cesare Gianturco

US Patent:

52580008, Nov 2, 1993

Filed:

Nov 25, 1991

Appl. No.:

7/797321

Inventors:

Cesare Gianturco - Champaign IL

Assignee:

Cook Incorporated - Bloomington IN

International Classification:

A61B 1700

US Classification:

606151

Abstract:

A tissue aperture repair device which is inserted using either an openly or minimally invasive surgical procedure for at least partially covering a tissue aperture or hernial ring. The repair device includes a foldable sheet of material that is maintained with support means in an unfolded shape. The support means includes a second sheet of material attached to the circumference of the foldable sheet for forming a cavity therebetween. An elastic stiffener wire is inserted into the cavity for maintaining the device in its unfolded shape. Percutaneous insertion of the device is accomplished with the inclusion of an introducer in which the device is folded about the distal end thereof and contained within a containment sheath. The device is percutaneously inserted into the abdominal cavity of a patient, unfolded, and extended to the unfolded shape with an elastic stiffener wire also percutaneously inserted through the introducer. The device is attached to tissue surrounding the hernial ring using suture material or helical coil fasteners.

US Patent:

45805687, Apr 8, 1986

Filed:

Oct 1, 1984

Appl. No.:

6/656261

Inventors:

Cesare Gianturco - Champaign IL

Assignee:

Cook, Incorporated - Bloomington IN

International Classification:

A61M 2900

US Classification:

128345

Abstract:

An endovascular stent formed of stainless steel wire of 0. 018 inches diameter and arranged in a closed zig-zag pattern. The stent is compressed into a reduced size shape of an outer diameter which is many times smaller than its expanded shape. The stent is positioned in a passageway in the vascular system by means of a sheath while the stent is retained in the compressed reduced size shape. A flat-ended catheter is used through the sheath to hold the stent in place in the passageway while the sheath is withdrawn from the passageway allowing the stent to expand in the passageway into its expanded shape to hold the passageway open and enlarged. Other possible applications of the stent are in the respiratory, biliary and urinary tracts to reinforce collapsing structures.

US Patent:

49073362, Mar 13, 1990

Filed:

Sep 9, 1988

Appl. No.:

7/242334

Inventors:

Cesare Gianturco - Champaign IL

Assignee:

Cook Incorporated - Bloomington IN

International Classification:

B21D 3900
B23P 1100

US Classification:

29515

Abstract:

In a method of the present invention, a wire stent, having a cylindrical shape defined by a series of alternating longitudinally overlapping opposing loops, is fabricated from a wire formed into a planar serpentine configuration. The wire is centered over a semi-cylindrical trough in a flat plate and then pressed into the trough by a forming bar so that a portion of the wire assumes the semi-cylindrical shape. A pulling tool, having a hook at one end, is engaged at the hook with the exposed loops of the serpentine configuration for pulling the exposed loops over the exposed portion of the forming bar to form a generally cylindrical shape from the wire. Once the wire is extracted from the trough and the forming bar is removed, a folded balloon catheter is inserted through the cylindrical shape and the wire is tightly pressed about the catheter.

US Patent:

52828247, Feb 1, 1994

Filed:

Jun 15, 1992

Appl. No.:

7/899109

Inventors:

Cesare Gianturco - Champaign IL

Assignee:

Cook, Incorporated - Bloomington IN

International Classification:

A61M 2900
A61F 206

US Classification:

606198

Abstract:

A self-expanding stent assembly consisting of one or more Z-stents connected to one another and covered by a flexible sleeve, which can be made from either nylon, plastic or another suitable material. The stents are formed of stainless steel wire arranged in a closed zig-zag configuration which includes an endless series of struts that are joined by an equal number of joints. The stent assembly is compressible into a reduced diameter size for insertion into, and possible removal from, a body passageway. After being properly positioned within a body passageway, the stent assembly is allowed to expand to its larger diameter shape, wherein the sleeve is pressed against the walls of the passageway by the stents. One application of the invention includes dilating a biliary duct which has been occluded by a tumorous growth. The advantage being that the sleeve prevents the tumor from growing between the gaps created by the stent which would otherwise restenose the passageway.

US Patent:

55077714, Apr 16, 1996

Filed:

Apr 24, 1995

Appl. No.:

8/427992

Inventors:

Cesare Gianturco - Champaign IL

Assignee:

Cook Incorporated - Bloomington IN

International Classification:

A61M 2900
A61F 206

US Classification:

606198

Abstract:

A self-expanding stent assembly consisting of one or more Z-stents connected to one another and covered by a flexible sleeve, which can be made from either nylon, plastic or another suitable material. The stents are formed of stainless steel wire arranged in a closed zig-zag configuration which includes an endless series of struts that are joined by an equal number of joints. The stent assembly is compressible into a reduced diameter size for insertion into, and possible removal from, a body passageway. After being properly positioned within a body passageway, the stent assembly is allowed to expand to its larger diameter shape, wherein the sleeve is pressed against the walls of the passageway by the stents. One application of the invention includes dilating a biliary duct which has been occluded by a tumorous growth. The advantage being that the sleeve prevents the tumor from growing between the gaps created by the stent which would otherwise restenose the passageway.

US Patent:

50411268, Aug 20, 1991

Filed:

Sep 14, 1988

Appl. No.:

7/244669

Inventors:

Cesare Gianturco - Champaign IL

Assignee:

Cook Incorporated - Bloomington IN

International Classification:

A61M 2902

US Classification:

606195

Abstract:

A wire stent for insertion and expansion into a passageway comprises a plurality of curved sections that are formed into a generally circular configuration. Adjacent curved sections are joined by a bend or cusp, so that a series of alternating opposing loops are formed. The wire stent as formed has a cylindrical shape with a longitudinal opening through which a folded balloon catheter is inserted. The opposing loops are tightly contracted about the catheter so that the cylindrical shape has an overlapping region in which portions of adjacent loops longitudinally overlap. The loops are arranged so that when the balloon catheter is inflated, adjacent loops diverge circumferentially relative to each other, thereby decreasing the overlapping region while increasing the diameter of the cylindrical shape. As the diameter of the cylindrical shape increases, the wire stent contacts the surface of a passageway in which the stent is inserted.

US Patent:

48008826, Jan 31, 1989

Filed:

Mar 13, 1987

Appl. No.:

7/025736

Inventors:

Cesare Gianturco - Champaign IL

Assignee:

Cook Incorporated - Bloomington IN

International Classification:

A61M 2902

US Classification:

128343

Abstract:

A wire stent for insertion and expansion into a passageway comprises a plurality of curved sections that are formed into a generally circular configuration. Adjacent curved sections are joined by a bend or cusp, so that a series of alternating opposing loops are formed. The wire stent as formed has a cylindrical shape with a longitudinal opening through which a folded balloon catheter is inserted. The opposing loops are tightly contracted about the catheter so that the cylindrical shape has an overlapping region in which portions of adjacent loops longitudinally overlap. The loops are arranged so that when the balloon catheter is inflated, adjacent loops diverge circumferentially relative to each other, thereby decreasing the overlapping region while increasing the diameter of the cylindrical shape. As the diameter of the cylindrical shape increases, the wire stent contacts the surface of a passageway in which the stent is inserted. In a method of the present invention, the wire stent is fabricated from a wire formed into a planar serpentine configuration.

US Patent:

46874682, Aug 18, 1987

Filed:

Jul 25, 1986

Appl. No.:

6/888633

Inventors:

Cesare Gianturco - Champaign IL

Assignee:

Cook, Incorporated - Bloomington IN

International Classification:

A61M 500

US Classification:

604153

Abstract:

A device for self-administration of a measured amount of insulin by a diabetic patient by means of digital pressure upon a subcutaneous pump implanted over the sternum.