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Convex-concave expansion balloon and production and use method thereof

A technology for dilating balls and balloons, which is applied in balloon-shaped catheters, medical science, stents, etc., can solve the problems of high cost, unsatisfactory effect, and complicated clinical use, and achieves non-slip, uniform force, and simple and efficient manufacturing process Effect

Active Publication Date: 2021-02-26
DONGGUAN TIAN TIAN XIANG SHANG MEDICAL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The suction catheter is to suck the thrombus through a catheter with negative pressure, and the effect is not ideal
Thrombectomy stent is a metal stent fixed at the end of the catheter. The stent self-expands at the position of the thrombus and hooks the thrombus tissue. The clinical use is complicated and expensive.

Method used

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  • Convex-concave expansion balloon and production and use method thereof
  • Convex-concave expansion balloon and production and use method thereof
  • Convex-concave expansion balloon and production and use method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] as attached figure 1As shown, the protrusions and grooves on the outside of the convex-concave expansion balloon are spiral protrusions and spiral grooves; The fixed end 5 is fixedly connected to the conduit 6 . The interior of the convex-concave dilation balloon includes an expansion port, which is connected to the air pump located outside the catheter through the internal channel of the catheter; the air pump inflates the convex-concave dilation balloon through the dilation port when the convex-concave dilation balloon needs to be expanded, so that the convex-concave dilation The balloon is inflated. The outer diameter of the convex-concave dilation balloon is larger than the outer diameter of other parts of the catheter in the inflated state. The outer diameter of the convex-concave dilation balloon can be expanded to different outer diameters under different inflation pressures, which is used to treat stenosis or blockage in the human body. partly expanded. The c...

Embodiment 2

[0052] as attached figure 2 As shown, the protrusions 1 and grooves 2 on the outside of the convex-concave expansion balloon are planar protrusions and spherical grooves; wherein, planar protrusions are formed between adjacent spherical grooves. In this embodiment, the position of the convex-concave dilation balloon in the catheter is the same as that in the embodiment, and the material and function of the convex-concave dilation balloon are the same as those in the embodiment, so no detailed introduction will be made here.

Embodiment 3

[0054] as attached image 3 As shown, the protrusions 1 and grooves 2 on the outside of the convex-concave expansion balloon are spherical protrusions and planar grooves; wherein, planar grooves are formed between adjacent spherical protrusions. In this embodiment, the position of the convex-concave dilation balloon in the catheter is the same as that in the embodiment, and the material and function of the convex-concave dilation balloon are the same as those in the embodiment, so no detailed introduction will be made here.

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Abstract

The invention discloses an expansion balloon with a convex-concave surface. The expansion balloon is used for expansion treatment of vascular and non-vascular stenosis. Protrusions and grooves are formed in the outer surface of the convex-concave expansion balloon, the protrusions and the grooves are evenly distributed on the outer side of the convex-concave expansion balloon in a continuous (thread-shaped) and / or discontinuous (crawler-shaped) mode, and the protrusions and the grooves in the convex-concave expansion balloon can be integrally formed when the balloon is formed, or formed twiceon the surface of the formed traditional balloon. When the balloon is expanded, the protrusions on the outer surface of the balloon concentrate pressure in the balloon, the high-pressure expansion effect is achieved, stress is uniform, and expansion is safer; a groove part on the outer surface of the balloon can be used for loading medicines, so that the loading capacity of the medicines can be remarkably increased, and the loss of the medicines in the conveying process is reduced; in a thrombus aspiration catheter, the thrombus aspiration effect can be improved; and the balloon can prevent astent from falling off in the conveying process when the stent is conveyed, and the use is safer.

Description

technical field [0001] The invention relates to the field of balloon catheters, in particular to a convex-concave dilation balloon and a production and use method thereof. Background technique [0002] Balloon dilatation (angioplasty) is a common procedure used primarily for the dilation and reconstruction of stenosis in vascular or nonvascular conduits. The balloon is inflated over the stenosis to apply radial pressure to the inner wall of the tube and widen the stenosis for better blood flow. [0003] Ordinary balloon angioplasty (POBA) is a general method for dilating stenosis. By inflating the balloon in the lesion, the occluded channel can be unobstructed. It mainly depends on the shape of the tissue where the balloon is located; in order to effectively dredge, the balloon expansion process will generate instantaneous high pressure in some parts. Although the instantaneous high pressure can temporarily effectively dredge, but the excessive expansion will cause acute re...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/10A61B17/22A61F2/958
CPCA61M25/1002A61M25/1029A61M25/104A61B17/22A61F2/958A61M2025/1004A61M2025/1031A61M2025/105A61M2025/1086A61B2017/22001A61B2017/22051A61B2017/22079A61F2002/9583
Inventor 吴天根毕玉影
Owner DONGGUAN TIAN TIAN XIANG SHANG MEDICAL TECH
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