MEDICAL CLOSURE SYSTEM
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United States of America Patent
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Issued Date -
Dec 1, 2016
app pub date -
Apr 30, 2014
filing date -
Apr 30, 2014
priority date (Note) -
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Abstract
A medical closure system comprises a closure stent (100) and a delivery device (200); the closure stent (100) comprises a stent outer layer (1), a film (3) disposed on the stent outer layer (1), and a mandrel (8) passing through the stent outer layer (1); the distal end of the mandrel (8) is fixedly connected to the distal end of the stent outer layer (1); the closure stent (100) is made of a degradable polymer; the delivery device (200) comprises an external push tube (11) and an internal push rod (10) installed in the external push tube (11); the external push tube (11) and the internal push rod (10) are movable relative to each other in an axial direction; the external push tube (11) is movably connected to the proximal end of the stent outer layer (1); and the internal push rod (10) is movably connected to the proximal end of the mandrel (8). The medical closure system can automatically degrade after being implanted into a human body, thus eliminating the hidden risk of a side effect caused by residue of the closure stem left in the human body.
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