Intravascular stent in-vitro loading device

Abstract

The invention discloses an intravascular stent in-vitro loading device. The intravascular stent in-vitro loading device comprises a bottom bearing mechanism, a top supporting frame and a detachable compression mechanism. The bottom bearing mechanism comprises a guide block and a V-shaped block, and the V-shaped block is connected to the guide block in a sliding mode; the detachable compression mechanism comprises a threaded lead screw, a horizontal sliding block, a fixed shaft, a longitudinal sliding block, a pressing head mechanism and a motor, the threaded lead screw is rotatably arranged onthe top supporting frame, the horizontal sliding block is in threaded connection to the threaded lead screw, the fixed shaft is fixedly connected to the lower portion of the horizontal sliding block,and the longitudinal sliding block is connected to the fixed shaft in a matched and sleeving mode; the side part of the longitudinal sliding block is connected with the motor through a crank connecting rod mechanism so that the longitudinal sliding block can move back and forth in the axial direction along the fixed shaft; and the front side of the longitudinal sliding block is detachably and fixedly connected with the pressing head mechanism. The device is simple in structure, can conveniently and effectively perform mechanical tests on intravascular stents of various specifications, and provides data support for the effective clinical application of the intravascular stents.

Description

technical field [0001] The invention belongs to the technical field of vascular stent testing, in particular to an in vitro loading device for vascular stents. Background technique [0002] Vascular stent refers to an external stent that is placed in the lesion on the basis of lumen balloon expansion to support the stenotic and occluded vessel, reduce the elastic retraction and reshaping of the vessel, and maintain the smooth blood flow in the lumen. The structure is commonly used clinically to treat atherosclerosis with interventional vascular stents. Nowadays, with the development of material manufacturing industry and technical level, there are more and more requirements for vascular stents. Although the treatment method of interventional vascular stents is very effective, intravascular restenosis, thrombosis and Endothelial hyperplasia and other problems are closely related to the mechanical properties of vascular stents. [0003] However, in the prior art, there is no...

AI Technical Summary

Problems solved by technology

Nowadays, with the development of material manufacturing industry and technical level, there are more and more requirements for vascular stents. Although the treatment method of interventional vascular stents is very effective, intravascular restenosis, thrombosis and Endothelial hyperplasia and other problems are closely related to the mechanical properties of vascular stents

[0003] However, in the prior art, there is no device with a relatively simple structure and strong universality for testing the mechanical properties of vascular stents to test the load and pressure limits of vascular stents.

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