Stent placing device used in cardiac surgery

Abstract

The invention provides a stent placement device used in cardiac surgery. The stent placement device comprises a sleeve with an inlet end and an outlet end. The sleeve is divided into 2-3 sleeve branches at the inlet end; 2-3 stent conveying catheters are accommodated in the sleeve; one stent conveying catheter is guided into each cannula branch; the stent conveying guide pipes are guided out from the outlet end of the sleeve; a guide wire cavity and a stent balloon pressure cavity are formed in each stent conveying catheter; a guide wire is arranged in the guide wire cavity; the front end of the stent delivery catheter is provided with a stent implanter, and the front end of the stent delivery catheter is sequentially provided with ultrasonic positioning balls. By means of the structure composed of the bendable sleeve and the multiple stent conveying catheters, accurate stent implantation can be conveniently provided for multiple blood vessels at the same time; the ultrasonic reflection effect is enhanced by arranging the ultrasonic positioning ball with the corner reflector, so that the implantation and detailed operation process of the device can be more conveniently completed under ultrasonic monitoring.

Description

Technical field: [0001] The present application belongs to the technical field of medical devices, especially stent implantation devices. Specifically, the present application provides a stent placement device for use in cardiac surgery. Background technique [0002] Vascular stenosis and occlusion are common clinical cardiovascular diseases, which can easily lead to disability and even death. Intravascular stent implantation is one of the main methods for the treatment of such diseases. [0003] Vascular stenosis and occlusion often occur in multiple brachiocephalic vessels at the same time, and each vessel may occur in multiple locations. When the disease is severe, patients often need to implant multiple stents in one extracardiac operation. The treatment of such cases generally requires intervention from the femoral artery, and multiple stents are implanted through multiple guidewire intervention-expansion-implantation-guidewire withdrawal procedures, which greatly pro...

AI Technical Summary

Problems solved by technology

The stent implantation process is mostly carried out under contrast, whether it is the use of contrast medium or the irradiation process itself, it is not conducive to the health of patients and the convenience of operation

[0004] The research on stent implantation devices in this field generally focuses on the structure of the stent implantation device itself. For example, the inventions of CN107440822A and CN212186774U lie in the positioning structure of the stent release device; although CN206424184U provides a stent release system for branch vessels, its The point of the invention is to solve the difficulty in the operation of the stent at the branch blood vessel, and does not consider the situation of placing multiple stents at the same time in the extracardiac surgery

That is, in the prior art, there is no disclosure of simultaneously implanting stent devices into multiple cardiovascular vessels during extracardiac surgery, and the positioning means and effects during stent implantation are relatively limited.

Images