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.
