| 摘要 |
Thermoplastic monofilament sutures having improved flexibility and handling characteristics are obtained by a melt spinning process which includes the step of drawing the filaments in a heated zone maintained at a temperature above the melting temperature of the filament. The resulting filaments have a higher elongation and lower modulus than comparable filament obtained without the heated drawing step, and are characterized by a crystalline structure which is more highly ordered in the core of the filament than in a surrounding annular area.
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