Non-absorbable surgical sutures coated with polyoxyethylene-polyoxypropylene copolymer lubricant
AssigneeAmerican Cyanamid Company
InventorsHenry Patrick Landi, Vincent Anthony Perciaccante
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Abstract
The handling characteristics, including particularly the knot run down and tissue drag characteristics, of non-absorbable surgical sutures are improved by a coating of a lubricating film of a bioabsorbable copolymer having polyoxyethylene blocks and polyoxypropylene blocks, and which bioabsobable copolymer has a molecular weight such that it is pasty to solid at 25.degree. C. This lubricant coating is absorbed in tissue in less than about 48 hours--which results in improved long term knot security.
Claims17
A non-absorbable surgical suture having improved knot run-down characteristics and reduced tissue drag comprising a polyfilamentary non-absorbable strand having thereon a thin lubricating coating of a lubricating absorbable co-polymer comprising polyoxyethylene blocks and polyoxypropylene blocks to aid run-down and handleability, said bioabsorbable copolymer having a molecular weight such that it is pasty to solid at 25.degree. C.
Dependencies are inferred from the claim text.