Child and mother guide conduit and child conduit thereof

Abstract

The invention discloses a child and mother guide conduit and a child conduit thereof. The child conduit comprises a conduit body and a conduit seat, wherein one end portion of the conduit body away from the conduit seat is provided with an end wall, the inner side of the end wall is an inclined face, an intersection angle between the inclined face and a shaft line of the conduit body is an acute angle, a side hole is formed in the side wall of the conduit body, and a guide wire can slide to the side hole along the inclined face. When bifurcation lesion occurs, the mother conduit is stretched into a main blood vessel, and then the child conduit moves along the mother conduit till the child conduit stretched out of the mother conduit and the side hole of the conduit body of the child conduit is opposite to a branch blood vessel, and then the guide wire is stretched into the child conduit till the end portion of the guide wire is offset with the end wall of one end of the conduit body away from the conduit seat, the end portion of the guide wire can slide to the side hole along the inclined face, and therefore the guide wire is entered into the branch blood vessel through the side hole, and accordingly medical apparatus and instruments such as a coronary artery saccule and a support and the like can be fed into the branch blood vessel for an operation.

Description

technical field [0001] The invention relates to the technical field of medical devices, and more specifically, relates to a parent-child guiding catheter and its sub-catheter. Background technique [0002] Percutaneous Coronary Intervention (PCI) refers to the treatment method of dredging the narrowed or even occluded coronary artery lumen through cardiac catheterization, so as to improve the blood perfusion of the myocardium. This treatment method has the advantages of short course of treatment, less trauma, and remarkable curative effect, and has developed rapidly in recent years. According to different implementation techniques, PCI can be divided into percutaneous coronary angioplasty (PTCA), coronary stent implantation, coronary atherectomy, cutting balloon angioplasty, and intracoronary thrombus aspiration. [0003] In PCI surgery, medical devices such as coronary balloons and stents are generally sent to the lesion through the parent-child guiding catheter. The lesi...

AI Technical Summary

Problems solved by technology

However, the existing mother-in-child guiding catheters cannot introduce medical devices such as coronary balloons and stents into branch vessels through daughter catheters.

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