Method of forming an absorbable biocompatible suture yarn
AssigneeAmerican Cyanamid Company
InventorJeffrey D. Hutton
Life of this patent
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Abstract
A process for producing an absorbable biocompatible medical suture yarn includes the step of spin drawing a bioabsorbable polymer to form suture filaments. A spin finish using a non-aqueous based carrier is applied to the filaments during processing, and an air entangling step is used after the filaments are combined to form the suture yarn.
Claims16
A method of forming absorbable, biocompatible suture filaments, comprising the steps of:
- melt extruding a bioabsorbable polymer to form a plurality of surgical filaments;
- and
- drawing the filaments to form drawn filaments, wherein
- the melt extruding and drawing occur in a single continuous step.
A method of forming absorbable, biocompatible suture filaments, comprising the steps of:
- melt extruding a bioabsorbable polymer to form a plurality of surgical filaments;
- drawing the filaments in a continuous step to form drawn filaments;
- and
- treating extruded filaments with a finishing solution before drawing the filaments, the finishing solution having a lubricating agent and an anti-static agent in a non-aqueous carrying fluid.
A method of forming an absorbable, biocompatible suture yarn, comprising the steps of:
- melt extruding a bioabsorbable polymer to form a plurality of surgical filaments;
- drawing the extruded filaments in a step continuous with the melt extruding step;
- combining the drawn filaments into a parallel contiguous arrangement to form a yarn;
- and
- securing the filaments together to stabilize the yarn.
A method of forming an absorbable, biocompatible suture yarn, comprising the steps of:
- melt extruding a bioabsorbable polymer to form a plurality of surgical filaments;
- drawing the extruded filaments in a continuous step;
- combining the drawn filaments into a parallel contiguous arrangement to form a yarn;
- securing the filaments together to stabilize the yarn;
- and
- treating extruded filaments with a finishing solution before drawing the filaments, the finishing solution having a lubricating agent and an anti-static agent in a non-aqueous carrying fluid.
A method of forming an absorbable, biocompatible suture yarn, comprising the steps of:
- melt extruding a bioabsorbable polymer to form a plurality of surgical filaments;
- drawing the extruded filaments in a continuous step;
- combining the drawn filaments into a parallel contiguous arrangement to form a yarn;
- securing the filaments together to stabilize the yarn;
- and
- entangling the yarn in the securing step.
Dependencies are inferred from the claim text.