Elastic degradable tracheal stent and its construction method
A technology of tracheal stent and construction method, applied in the direction of stent, processing and manufacturing, prosthesis, etc., to achieve the effects of good pore connectivity, good tissue infiltration, and good elasticity
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[0043] The present invention will be described in detail below in combination with specific embodiments.
[0044] The invention relates to an elastic degradable tracheal stent, the stent is a three-layer elastic tracheal composite structure, which sequentially includes a PGS tube core, a C-shaped PCL ring and a PCL sheath arranged in parallel to form a PGS tube core-C Type PCL ring-PCL sheath has elastic degradable tracheal stent material.
[0045] The PGS die is a tubular structure made of polyglycerol sebacate (PGS) material; the C-shaped PCL ring is a C-shaped structure made of polycaprolactone (PCL); the PCL sheath The layer is a polycaprolactone sheath prepared by electrospinning. The C-type PCL ring is used as the middle supporting ring layer, including at least two rings, which are equal in size and arranged in parallel axially. The inner diameter of the stent is 4-9 mm, and the outer diameter is 6-11 mm; the width of the C-type PCL ring is 2-3 mm, and the adjacent di...
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