Woven nonvascular stent fatigue performance testing device and method

The invention provides a woven nonvascular stent fatigue performance testing device and method, which have the advantages of convenient operation, precision detection result, and good universality. The device comprises a soft pipe for placing a stent and a jet pipe surrounding the soft pipe; the jet pipe is provided with an outlet and an inlet, the inlet is connected to a hydraulic or pneumatic system for supplying a working medium, the outlet is a ring gap which is co-axial with the soft pipe; the two ends of the soft pipe are both provided with a support plug, one support plug is fixed on a support core rod, the other support plug can freely slide on the support core rod, the support core rod goes through the soft pipe and a stent and is fixed on a support rack, and the jet pipe is connected to a mobile device. The hydraulic or pneumatic system supplies a work medium to the jet pipe, the work medium is ejected to the soft pipe from the ring gap to make the soft pipe and stent contract in the radial directio