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Medicine-carrying cutting balloon dilating catheter

A technology of cutting balloon catheters and cutting balloons, which is applied in the field of medical devices, can solve the problems of difficult treatment and high cost of implantation surgery, and achieve the effects of reducing inflammation, reducing the increase of lumen, and inhibiting intimal hyperplasia Effect

Inactive Publication Date: 2013-08-07
雅伦生物科技(北京)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the stent in stent implantation is a foreign body. If restenosis occurs in the stent, it is difficult to treat, and the treatment cost of implantation is also high.

Method used

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  • Medicine-carrying cutting balloon dilating catheter
  • Medicine-carrying cutting balloon dilating catheter
  • Medicine-carrying cutting balloon dilating catheter

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Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] In order to further understand the present invention, preferred solutions of the present invention will be described below in conjunction with examples. These descriptions only illustrate the features and advantages of the present invention, but do not limit the protection scope of the present invention.

[0033] see Figure 2 to Figure 9 ,

[0034] A drug-loaded cutting balloon dilatation catheter 2 provided by the present invention is a balloon with blades on its surface and a drug coating on the outer surface of the balloon;

[0035] image 3 The middle cutting blade 21 and the balloon 22 are contact-separated, and the material of the blade is a medical polymer material, and the connection mode is that the two ends of the blade are respectively welded to the necks of the far and near ends of the balloon, and the balloon and the blade are tightly fitted, so that When the balloon expands, it cuts and expands the narrow plaque of the lesion with a blade;

[0036] ...

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Abstract

The invention relates a medicine-carrying cutting balloon dilating catheter. The medicine-carrying cutting balloon dilating catheter comprises a cutting balloon dilating catheter body and a medicine coating, wherein the cutting balloon dilating catheter body comprises a balloon, the surface of the balloon is provided with a plurality of blades, and the medicine coating is coated on the surfaces of the balloon and the blades. The medicine-carrying cutting balloon dilating catheter can cut plaques in vessels and fully dilate to be well adhered to arterial walls by pressing the plaques, so that not only subsequent inflammatory responses are reduced, but also the dilation of lumen reduces the restenosis rate. Besides, the medicine coating can restrain the intimal hyperplasia of the vessel inner surface which is damaged by squeezing. Particularly for a bended complex lesion location where a stent cannot reach, the superior advantages of the medicine-carrying cutting balloon dilating catheter are significant.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a cutting balloon dilatation catheter with drugs loaded on the surface of the balloon. Background technique [0002] Cerebrovascular disease is a disease with high morbidity, mortality and disability, and is one of the "three major killers" (cerebrovascular disease, cardiovascular disease and tumor) of human beings. Stenosis or blockage of arteries in the brain is one of the main causes of stroke. According to the results of the epidemiological investigation of neurological diseases in 7 cities and 21 provinces in China, it is estimated that there are about 2 million new strokes in the country every year; about 1.5 million people die of cerebrovascular diseases every year, and the number of survivors (including those who have recovered) 6-7 million. Among the surviving patients with cerebrovascular disease, about 3 / 4 lose their labor force to varying degrees, which brings huge im...

Claims

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Application Information

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IPC IPC(8): A61B17/22A61M29/02A61M25/10
Inventor 缪中荣胡清潘幸珍张杰张洪勇宋义兴梁灵芝周琼
Owner 雅伦生物科技(北京)有限公司
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