| Objective For the repair of injured tendons develop a biodegradable polyester film.Methods 30 rabbits were randomly divided into A, B group:A group for the tendon biomechanical test group (n = 15); B group ultrastructure tendon group (n = 15). The right of each animal was cut after the Achilles tendon 3cm in this study. A group of measuring the maximum tensile tendon, tensile strength and tendon circumference, B group tendon surface pore size of the electron microscope, and then under the guidance of these data to PCL as raw material to the tensile strength and with strong a large number of micro polyester film. Final test of this polyester film-related characterization.Results 1. The maximum tensile strength of rabbit Achilles tendon 145.98±14.38 N, tensile strength of 20.26±0.84 MPa, the perimeter of the Achilles tendon 9.49±0.36 mm, tendon surface pore size of 9.18±0.85μm; 2. Successful repair of injured tendons were prepared polyester film, more supple texture of this polyester film, the outer surface is slick, with a large number of micropores, has good plasticity, strong tensile strength, good biocompatibility, easy to suture; 3. Polyester film 9mm width tensile strength of each as 75N, tensile strength of 16 MPa, thickness of about 0.3mm. Membrane pore size of the section is about 10μm.Conclusion 1. Tendon biomechanical measurements and observations of the ultrastructure of the preparation of polyester film to provide a theoretical basis, under the guidance of these data can be successfully prepared by the repair of injured tendons of polyester film; 2. In this study, the tensile strength of polyester film prepared than the normal physiological activity of rabbit Achilles tendon mechanical strength required, the section of the pore size and pore size of the rabbit Achilles tendon close to the surface.
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