Intravascular stent torsion testing device

Abstract

The invention discloses an intravascular stent torsion testing device. The device comprises a mounting platform; a universal support mechanism used for twisting in any direction is mounted on the mounting platform; a spherical mounting seat is mounted on the mounting platform; a gear motor capable of rotating forwards and backwards is mounted on the spherical mounting seat; the universal support mechanism and the gear motor are each provided with a tubular two-way clamping mechanism used for fixing a vascular stent; the tubular two-way clamping mechanism on the universal support mechanism andthe tubular two-way clamping mechanism on the gear motor are used for fixing the two ends of an intravascular stent respectively; the gear motor periodically rotates forwards and backwards to drive the tubular two-way clamping mechanism to twist one end of the intravascular stent. The inner side and the outer side of the intravascular stent are clamped through the tubular two-way clamping mechanisms, so that the intravascular stent is prevented from deforming and even being damaged due to the fact that the inner side or the outer side of the intravascular stent is stressed through a passagewayin an intravascular stent clamping process.

Description

technical field [0001] The invention relates to the technical field of vascular stent testing, in particular to a vascular stent torsion testing device. Background technique [0002] On the basis of balloon dilatation of the lumen, placing an internal stent in the diseased segment can achieve the effects of supporting the stenotic and occluded segment of the vessel, reducing the elastic recoil of the vessel and maintaining the smooth blood flow in the lumen. Vascular stents generally require axial tests, bending tests, and torsion tests before they are put into use. [0003] In the prior art, the torsion test generally needs to fix one end of the vascular stent, and fix the other end on a rotating device that can rotate periodically. The rotating device periodically twists the other end of the vascular stent, enabling the torsion test. [0004] The current torsion test suffers from the following problems: [0005] (1) The conventional vascular stent is an expandable singl...

AI Technical Summary

Problems solved by technology

[0007] The purpose of the present invention is to provide a vascular stent torsion test device to solve the problem that the clamped vascular stent in the prior art may cause excessive deformation and damage during the clamping process, and it is difficult to determine the position and shape of the blood vessel to be installed. The problem with running the simulation

Images