1
Cheng Kung Liu, Ying Jiang, Mark S Roby, Steven L Bennett, Richard P Stevenson, Jeffrey P Pietrangeli: Composite bioabsorbable materials and surgical articles made therefrom. United States Surgical Corporation, May 6, 1997: US05626611 (211 worldwide citation)

The present invention relates to composite materials having a core portion formed from a first bioabsorbable material and at least one shell portion of a second bioabsorbable material joined to the core portion. The first and second bioabsorbable materials have different rates of bioabsorption. In a ...


2
Mark S Roby, Ying Jiang: Polyesteramides with amino acid-derived groups alternating with alpha-hydroxyacid-derived groups and surgical articles made therefrom. United States Surgical Corporation, June 22, 1999: US05914387 (177 worldwide citation)

Polyesteramides having amino acid-derived groups alternating with hydroxy acid-derived groups are useful in making shaped articles, particularly, shaped articles suitable for use as surgical devices.


3
Mark S Roby, Ying Jiang: Polyesteramide, its preparation and surgical devices fabricated therefrom. United States Surgical Corporation, May 11, 1999: US05902875 (173 worldwide citation)

A polyesteramide suitable for use in the fabrication of absorbable surgical devices such as monofilament and multifilament sutures, films, sheets, plates, clips, staples, pins, screws, and the like, is obtained by reacting a monoalkanolamine such as ethanolamine with a diacid halide such as succinic ...


4
Mark S Roby, Ying Jiang: Polyesteramide, its preparation and surgical devices fabricated therefrom. United States Surgical Corporation, July 6, 1999: US05919893 (172 worldwide citation)

Degradable polyesteramide suitable for use in biomedical applications is obtained by reacting diamino alkyl ester with alpha hydroxy acid to form diamide-diol which is reacted with acyl halide or dicarboxylic acid to yield polyesteramide. ##STR1##


5
Mark S Roby: Composite materials and surgical articles made therefrom. United States Surgical Corporation, November 13, 2001: US06315788 (146 worldwide citation)

Composite materials have a core portion formed from a polyalkylene oxide initiated block copolymer having one of the blocks made from hard phase forming monomers and another of the blocks made from random copolymers of soft phase forming monomers and at least one shell portion formed from a block co ...


6
Cheng Kung Liu, Ying Jiang, Mark S Roby, Steven L Bennett, Richard P Stevenson, Jeffrey P Pietrangeli: Composite bioabsorbable materials and surgical articles made thereform. United States Surgical Corporation, November 26, 1996: US05578046 (142 worldwide citation)

The present invention relates to composite materials having a core portion formed from a first bioabsorbable material and at least one shell portion of a second bioabsorbable material joined to the core portion. The first and second bioabsorbable materials have different rates of bioabsorption. In a ...


7
Donald J Casey, Mark S Roby: Synthetic copolymer surgical articles and method of manufacturing the same. American Cyanamid Company, Charles F Costello Jr, Alphonse R Noe, January 31, 1984: US04429080 (92 worldwide citation)

A triblock copolymer having a proportion of units having the formula: ##STR1## as the end blocks, and the formula (I) randomly combined with a proportion of units having the formula: ##STR2## as the middle block finds particular advantageous use in manufacturing absorbable monofilament sutures and o ...


8
Mark S Roby, Lydmilla K Kokish, Rooma M Mehta, Jerry Y Jonn: Absorbable polymers and surgical articles fabricated therefrom. United States Surgical Corporation, May 22, 2001: US06235869 (91 worldwide citation)

Synthetic absorbable medical devices made totally or in part from a random polymer comprising glycolide, lactide, trimethylene carbonate, and caprolactone are provided. The polymer can be fabricated into a monofilament which exhibits physical characteristics equivalent to or superior than gut suture ...


9
Cheng Kung Liu, Ying Jiang, Mark S Roby, Steven L Bennett, Richard P Stevenson, Jeffrey P Pietrangeli: Composite bioabsorbable materials and surgical articles made therefrom. United States Surgical, July 25, 2000: US06093200 (88 worldwide citation)

Composite materials have a core portion formed from a biocompatible material and at least one shell portion of a biocompatible material joined to the core portion. In a preferred embodiment, the core portion is coextruded with the shell portion to form a composite filament or sheet. The composite ma ...


10
Mark S Roby, Steven L Bennett, Cheng Kung Liu: Absorbable block copolymers and surgical articles fabricated therefrom. United States Surgical Corporation, April 4, 1995: US05403347 (76 worldwide citation)

Block copolymers wherein one of the blocks is made from hard phase forming monomers and another of the blocks is made from soft phase forming monomers copolymerized with randomly intermingled units of other soft phase forming monomers. The copolymers are useful in forming surgical articles, includin ...