High strength bioresorbables containing poly-glycolic acid
AssigneeSmith & Nephew, Inc.
InventorJohn Rose
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Abstract
Polymer compositions comprising poly-glycolic acid (PGA) or a functional derivative thereof with a tensile strength of at least 1200 MPa are disclosed. Processes suitable for manufacturing said compositions are also described, comprising rendering PGA into an amorphous state then drawing to form a highly orientated polymer structure. The polymer compositions can be used to make artefacts, for example sutures, or used in combination with other polymers or non-polymeric substances to produce other artefacts, for example medical devices suitable for implantation into the human body. Processes for the production of said artefacts are also described.
Claims28
A polymer composition comprising poly-glycolic acid or a functional derivative thereof with a tensile strength of at least 1200 MPa
A process for the manufacture of polymer compositions as claimed in any one of the preceding claims including the steps of forming poly-glycolic acid or a functional derivative thereof into fibres, quenching the fibres then subjecting the quenched fibres to a tension under conditions whereby a defined region of the tensioned fibres is drawn
An artefact of any of the preceding claims comprising at least one non-bioresorbable polymer component
An artefact of any of the preceding claims further containing at least one non-polymeric component
An artefact according to any of the preceding claims in the form of a medical device
Dependencies are inferred from the claim text.