1
Alain Carpentier, Ernest Lane: Flexible cardiac valvular support prosthesis. Baxter International, Michael C Schiffer, October 29, 1991: US05061277 (446 worldwide citation)

A support for a natural heart valve is disclosed. The support is generally ring shaped and has a size and shape to fit against the natural heart valve annulus. First length of the support is flexible, and a second length of the support is less flexible than the first length of the support. According ...


2
Roger H Tu, Edwin Wang: Multi-layered poly(tetrafluoroethylene)/elastomer materials useful for in vivo implantation. Baxter International, Michael C Schiffer, Richard L Myers, W Dennis Drehkoff, March 28, 1989: US04816339 (345 worldwide citation)

Biologically compatible materials capable of being formed into implants, comprising layers of poly(tetrafluoroethylene) and mixtures of poly(tetrafluoroethylene) and elastomer, having excellent compliance, strength, elasticity and suturability are disclosed. The materials are preferably prepared as ...


3
Hung L Lam, Than Nguyen, Alain Carpentier: Selectively flexible annuloplasty ring. Baxter International, Michael C Schiffer, April 14, 1992: US05104407 (313 worldwide citation)

An annuloplasty ring prosthesis which is formed from a selectively flexible body element having at least one defined length about its circumference which is substantially rigid. The remainder of the body element gradually increases in flexibility. The body element is a substantially annular shaped b ...


4
Roger Tu, David Chen, Wilfred F Mathewson: Microporous vascular graft. Baxter International, Michael C Schiffer, June 18, 1991: US05024671 (258 worldwide citation)

A vascular graft at least partially formed from porous hollow fibers, with at least some of the porous hollow fibers being located adjacent an inner surface of the vascular graft. The vascular grafts of the invention have a relatively small pore size for promoting tissue growth while inhibiting blee ...


5
Alain Carpentier, Hung L Lam, Than Nguyen: Multi-segmented annuloplasty ring prosthesis. Baxter International, Michael C Schiffer, April 17, 1990: US04917698 (171 worldwide citation)

A ring prosthesis which provides different flexibilities at various points about the circumference of an associated heart valve. Specifically, the annuloplasty ring prosthesis of the invention includes a segmented body formed by two or more segments. The individual segments form a body which is subs ...


6
Delos M Cosgrove, Than Nguyen: Flexible annuloplasty ring and holder. Baxter International, Michael C Schiffer, August 20, 1991: US05041130 (166 worldwide citation)

An assembly for holding a substantially flexible lenticular shaped annuloplasty ring in a substantially taut position for suturing about a valve annulus. The assembly includes a portion which is formed with a surface against which the annuloplasty ring is positioned and held in a shape substantially ...


7
Mark L Pomeranz: Soft tip catheters. Baxter International, Michael C Schiffer, Sandra S Schultz, January 7, 1992: US05078702 (157 worldwide citation)

Catheters having tubular body portion formed with an inner sheath of a rigid polymeric material encapsulated by an outer sheath formed of the same or different rigid polymeric material. A wire braid is embedded in the tubular body between the inner and outer sheaths. The catheter further includes a ...


8
Roger Tu, Edwin Wang: Multi-layered poly(tetrafluoroethylene)/elastomer materials useful for in vivo implantation. Baxter International, Michael C Schiffer, W Dennis Drehkoff, October 29, 1991: US05061276 (133 worldwide citation)

A vascular graft having a composite structure prepared by wrapping about the external surface of a tube having one or more layers of polytetrafluoroethylene or a polytetrafluoroethylene-elastomeric polymer blend, either alone or in combination, an elastic fiber, while maintaining the fiber under ten ...


9
Manouchehr Miraki, Carmen Diaz: Catheter with heat-fused balloon with waist. Baxter International, Sandra S Schultz, Michael C Schiffer, December 24, 1991: US05074845 (130 worldwide citation)

Disclosed is an everting balloon catheter in which the balloon has a waist at the desired eversion point to minimize the size of the distal tip of the catheter during insertion. Preferably, the distal end of the outer body is bevelled and the waist is located just distal and radial to the tip of the ...


10
Lillian J Quintero, Delos M Cosgrove, Diana Nguyen Thien Nhon: Stentless heart valve and holder. Baxter International, June M Bostich, Michael C Schiffer, Raymond Sun, March 30, 1993: US05197979 (119 worldwide citation)

A stentless aortic heart valve having a disposable holder with a removable handle can be manually reversed by the physician during suturing to provide a relatively unobstructed view into the patient's aorta. A covering applied to strategic regions on the exterior and interior of the device provides ...