Balloon dilation catheter

Abstract

The invention provides a balloon dilation catheter. The balloon dilation catheter comprises a catheter connector, a stress dispersing tube, a push tube, a balloon, a development marker, a water-preventing membrane and a cap, wherein the near end of the push tube is fixed with the catheter connector, the far end of the push tube is fixed with the balloon, the push tube is of a hollow structure, three independent cavities (including a liquid inlet cavity, a wire guide cavity and an exhaust cavity) are arranged in the push tube, and the liquid inlet cavity and the exhaust cavity are communicated with each other at a balloon wrapping section. The balloon dilation catheter has the advantages that by adding the exhaust channel, air in the whole pressurizing channel can be completely exhausted fast; the current clinical ubiquitous problem that repeated complex operation and repeated exhaust need to be performed by a doctor before catheterization, and the fact that no air residues exist in the pressurizing channel of the balloon dilation catheter can still not be guaranteed is avoided; the risk of dilation pressure inaccuracy caused by the fact the air in the pressurizing cavity is not exhausted completely can be avoided.

Description

technical field [0001] The invention relates to a medical appliance, in particular to a balloon dilation catheter. Background technique [0002] Interventional medical devices are emerging medical device technologies in recent years, which play a very important role in reducing trauma to patients and improving disease treatment effects. For example, interventional balloon dilatation catheters used in various lumens of the human body can be used for the treatment of arteriovenous stenosis or intravascular stent (implantable tubular structure used to support the lumen of blood vessels), treatment of bare stents and Diseases that cannot be treated with drug stents, such as the treatment of peripheral arterial vascular obstruction or stenosis, the treatment of arteriovenous fistula stenosis and dilatation, the treatment of in-stent restenosis, etc. Moreover, the interventional balloon dilatation catheter can also be used as a delivery device to deliver various stents, such as v...

AI Technical Summary

Problems solved by technology

This operation takes a long time, and because the push tube is mostly made of opaque material, the doctor cannot judge whether the air has been exhausted by observing whether there are air bubbles in the pressurized chamber of the push tube. If the air is not exhausted, the pressure transmission will be affected, which will increase the operation time risk of failure

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