Multilayer saccule bracket

Abstract

The invention discloses a multilayer saccule bracket. The multilayer saccule bracket comprises a soft catheter, a bracket assembly and an inflating assembly, a plurality of ventholes are formed in theouter part of the soft catheter, air blocking sheets are fixed to the side walls of one positions of the ventholes through laser fusion, the ventholes are covered with the air blocking sheets, the bracket assembly comprises a pressure saccule, metal fixing frames are arranged on two sides of the pressure saccule, fixing blocks are uniformly arranged on the outer part of the soft catheter, the metal fixing frames and the fixing blocks are mutually clamped, the outer parts of the ventholes are covered with the pressure saccule, a plurality of circular baffles are fixed to the inner wall of thesoft catheter through welding, the circular baffles are correspondingly distributed on the two sides of the ventholes, the circular baffles divide the soft catheter into a plurality of chambers, the inflating assembly comprises a plurality of vent pipes, and the vent pipes are circularly distributed in the interior of the soft catheter. The multilayer saccule bracket has the characteristics of accurate size and adjustable diameter of each part.

Description

technical field [0001] The invention relates to the technical field of coronary artery lesion treatment, in particular to a multi-layer balloon stent. Background technique [0002] Coronary stents have been widely used in the treatment of bare arterial stenosis. Coronary interventional surgery utilizes the mechanical expansion of pressure balloons to enlarge the narrow lumen, reduce the elastic recoil and re-deformation of blood vessels, and maintain the patency of blood vessels. Its working process includes three steps of stent entry, expansion and service. [0003] At present, most commercial stents have only a few sizes to choose from, and the degree of stenosis of coronary arteries is a continuous variable. When the size of the narrowed vessel and the stent cannot be accurately matched, the doctor can only estimate which size stent is just suitable for the opening of the blood vessel. Due to the relatively large individual differences in the coronary arteries of patien...

AI Technical Summary

Problems solved by technology

[0003] At present, most commercial stents have only a few sizes to choose from, and the degree of stenosis of coronary arteries is a continuous variable. When the size of the narrowed vessel and the stent cannot be accurately matched, the doctor can only estimate which size stent is just suitable for the opening of the blood vessel.

Due to the relatively large individual differences in the coronary arteries of patients, if the stent selected is not suitable, adverse reactions such as malapposition, incomplete expansion, detachment and displacement, and interference with blood flow may occur in the stent; , the diameter of each sub-stent is the same, and when clinical vascular wall calcification or severe stenosis and other lesions are encountered, the same pressure will cause greater mechanical stimulation to the blood vessel, causing safety hazards

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