Intravascular stent conveyor

Abstract

The invention discloses an intravascular stent conveyor. The intravascular stent conveyor comprises a shell, an adjusting knob, a guide wire and a catheter, the adjusting knob is rotatably arranged on the shell, the catheter sleeves the guide wire, the guide wire and the catheter can slide relatively, one end of the guide wire and one end of the catheter extend into the shell, the catheter is in transmission connection with the adjusting knob, and the adjusting knob can drive the catheter and the guide wire to slide relatively; and a limiting element is arranged between the adjusting knob and the shell and can limit the relative rotation angle of the adjusting knob and the shell. When an intravascular stent conveyor works, an operator rotates the adjusting knob, the adjusting knob drives the catheter to slide, in the sliding process of the catheter, the limiting element is arranged between the adjusting knob and the shell, the limiting element can limit the relative rotation angle of the adjusting knob and the shell, the rotation accuracy of the adjusting knob is improved, then the accuracy of the sliding size of the catheter is improved, misoperation can be avoided, and the safety coefficient of the intravascular stent conveyor is improved.

Description

technical field [0001] The invention relates to the technical field of medical instruments, in particular to a vascular stent delivery device. Background technique [0002] Vascular stent refers to the placement of internal stents in the diseased segment on the basis of lumen balloon expansion to support the stenotic and occluded segment of the vessel, reduce elastic recoil and reshaping of the vessel, and maintain smooth blood flow in the lumen. Some internal stents can also prevent restenosis. Mainly divided into coronary stents, cerebrovascular stents, renal artery stents, aortic stents, etc. When performing stent surgery, it is necessary to puncture the blood vessel with the assistance of medical imaging technology, so that the catheter advances in the blood vessel, and the delivery system is used to transport the stent to the place where it needs to be placed, place and withdraw the catheter, and the operation ends. [0003] In the prior art, the structure of the sten...

AI Technical Summary

Problems solved by technology

[0003] In the prior art, the structure of the stent delivery device is complicated and the operation is cumbersome, which has caused certain obstacles to the operation of the medical staff. When the stent is delivered to the placement position, the positioning still depends on the medical imaging equipment, which has the risk of inaccurate positioning.

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