Polymer derived from cyclic amide and medical devices manufactured therefrom
AssigneeUnited States Surgical Corporation
InventorYing Jiang
Life of this patent
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Abstract
A moldable and/or extrudable polymer which is useful for the manufacture of surgical devices such as sutures, staples, clips, etc., possesses structural units derived from a cyclic amide monomer containing oxygen, sulfur or nitrogen in the ring.
Claims6
A copolymer suitable for fabrication into a useful article by at least one fabrication method selected from the group consisting of molding and extruding, the copolymer possessing structural units derived from a cyclic amide monomer of the general formula:
- ##STR4## wherein Z is O, S or NR";
- each of R, R' and R" individually is the same or different and is hydrogen or methyl;
- and, x is 1 to 5, y is 1 to 5 and the sum of x and y is at least 3, and structural units derived from at least one other monomer selected from the group consisting of caprolactam, .epsilon.-caprolactone, glycolide, glycolic acid, lactide, lactic acid, p-dioxanone and trimethylene carbonate.
A medical device fabricated in whole or in part from a polymer possessing structural units derived from a cyclic amide monomer of the general formula:
- ##STR5## wherein Z is O, S or NR";
- each of R, R' and R" individually is the same or different and is hydrogen or methyl;
- and, x is 1 to 5, y is 1 to 5 and the sum of x and y is at least 3, and structural units derived from at least one other monomer selected from the group consisting of caprolactam, .epsilon.-caprolactote, glycolide, glycolic acid, lactide, lactic acid, p-dioxanone and trimethylene carbonate.
A linear copolymer suitable for fabrication into a useful article by at least one fabrication method selected from the group consisting of molding and extruding, the copolymer comprising structural units of the formula:
- ##STR6## wherein Z is O, S or NR";
- each of R, R' and R" individuality is the same or different and is hydrogen or methyl;
- and, x is 1 to 5, y is 1 to 5 and the sum of x and y is at least 3 and structural units derived from at least one other monomer selected from the group consisting of caprolactam, .epsilon.-caprolactone, glycolide, glycolic acid, lactide, lactic acid, p-dioxanone and trimethylene carbonate.
Dependencies are inferred from the claim text.