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Double-balloon catheter

A technology of balloon catheter and double balloon, which is applied in the direction of balloon catheter, catheter, surgery, etc., to achieve the effect of improving treatment effect, improving absorption capacity and increasing metabolic burden

Active Publication Date: 2019-12-03
SHANGHAI SHENQI MEDICAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to overcome the deficiencies of the prior art, the present invention provides a double-balloon catheter, which solves the problem of how to cut, dilate and dredge the blood vessels of the stenosis lesion, and at the same time inject drugs, thereby improving the drug absorption rate of the lesion

Method used

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Examples

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Comparison scheme
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Embodiment 1

[0035] refer to Figure 1 to Figure 2 As shown, Embodiment 1 of the present invention provides a double-balloon catheter, including a catheter body 20, and the catheter body 20 is sequentially provided with a drug balloon 14 and a cutting balloon 19 in the direction from the proximal end to the distal end. In the past balloons, the drug balloon 14 and the cutting balloon 19 of this product are folded and wound on the catheter body by winding equipment, which effectively reduces the horizontal cross-sectional size of the balloon, thereby facilitating entry into tortuous or narrow blood vessels. This product adopts the combination of drug balloon 14 and cutting balloon 19, which not only can use cutting balloon 14 to cut and expand the lesion, but also avoids the erosion caused by blood in the process of pushing drug balloon 14. Cause the drug to flow into the blood vessels, effectively improving the therapeutic effect.

[0036] see figure 1 , the inside of the catheter body 2...

Embodiment 2

[0047] refer to Figure 3-8 As shown, preferred embodiment 2 of the present invention provides a double-balloon catheter. The difference between it and embodiment 1 is that two groups of symmetrically arranged fixing plates 44 are arranged inside the cutting balloon 19, and The surface is provided with two groups of intake blades 41 that are fixedly connected with the fixed plate 44. The cross-sectional shape of the intake blades 41 is sickle-shaped, and the blade ends of the two groups of intake blades 41 can be mutually moved along with the expansion of the cutting balloon. approach until the contact closes (as Figure 4 Shown), the opposite surface of the intake blade 41 is also provided with a number of protrusions 43, the catheter body 20 is provided with an intake conduit 42, the intake space formed between the distal end of the intake conduit 20 and two groups of intake blades 41 In communication, the cutting balloon 19 is integrally formed with the intake catheter 41 ...

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Abstract

The invention provides a double-balloon catheter. The catheter comprises a catheter body, a medicine balloon and a cutting balloon are sequentially arranged in the far-end direction of the catheter body from the near end to the far end, a guide wire catheter, an injection catheter and a pumping catheter are arranged in the catheter body, a guide wire with an outer diameter of 0.014 inch is arranged in the guide wire catheter, the injection catheter is communicated with the medicine balloon, and the pumping catheter is communicated with the cutting balloon, a plurality of micropores are evenlyformed in the medicine balloon, and a plurality of cutting blades are evenly arranged on the outer surface of the cutting balloon. The product not only can expand and dredge blood vessels, but also can cut a diseased region, and can inject a liquid medicine into the cut diseased region, and as the product adopts the nanoscale liquid medicine, the absorption capacity of the diseased region to the medicine is effectively improved, and the treatment purpose is achieved.

Description

technical field [0001] The invention belongs to the field of medical instruments, in particular to a double-balloon catheter. Background technique [0002] Endovascular interventional therapy has a history of more than 40 years. Since the first use of balloon dilatation catheters for coronary artery stenosis interventional therapy in 1977, related medical devices have continued to evolve. Cutting balloons are developed on the basis of traditional balloon angioplasty. A method of interventional therapy. Cutting balloons mainly use balloons with microblades to expand and cut atherosclerotic plaques on the inner wall of blood vessels. For narrow blood vessels that cannot be expanded by conventional balloons, such as calcified lesions and fibrotic lesion structures, cutting balloons are usually Can achieve satisfactory results. [0003] Although cutting balloons can achieve good immediate results in treating complex lesions, vascular injury will still cause continued intimal h...

Claims

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Application Information

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IPC IPC(8): A61M25/10A61M29/04
CPCA61M25/1002A61M25/1011A61M29/02A61M2025/1013A61M2025/105A61M2025/109
Inventor 胡帅领
Owner SHANGHAI SHENQI MEDICAL TECH CO LTD
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