Absorbable composition
AssigneeUnited States Surgical Corporation
InventorsJohn Kennedy, Donald S. Kaplan, Ross R. Muth
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Abstract
A block copolymer for use in the fabrication of bioabsorbable articles such as monofilament surgical sutures is prepared by copolymerizing one or more hard phase forming monomers and 1,4-dioxan-2-one, and then polymerizing one or more hard phase forming monomers with the dioxanone-containing copolymer.
Claims30
A block copolymer which comprises a proportion of units of one or more hard phase forming monomers as one of said blocks, and another of said blocks comprising a proportion of units having the formula:
- ##STR4## randomly combined with a proportion of units of one or more hard phase forming monomers.
A surgical article manufactured from a block copolymer which comprises a proportion of units of one or more hard phase forming monomers as one of said blocks, and another of said blocks comprising a proportion of units having the formula:
- ##STR7## randomly combined with a proportion of units of one or more hard phase forming monomers.
A method for preparing a bioabsorbable block copolymer, comprising:
- a) polymerizing a mixture of one or more hard phase forming monomers and 1,4-dioxan-2-one at a first reaction temperature to create a copolymer thereof;
- b) polymerizing one or more hard phase forming monomers with the copolymer of step (a) at a second reaction temperature to create the bioabsorbable block copolymer.
A method for making a bioabsorbable surgical article, comprising:
- a) polymerizing a mixture of one or more hard phase forming monomers and 1,4-dioxan-2-one at a first reaction temperature to create a copolymer thereof;
- b) polymerizing one or more hard phase forming monomers with the copolymer of step (a) at a second reaction temperature to create a bioabsorbable block copolymer;
- c) forming a surgical article from said block copolymer.
Dependencies are inferred from the claim text.