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Balloon dilatation catheter and application thereof

A technique for dilating catheters and balloons, which is applied in the direction of balloon catheters, catheters, medical science, etc. It can solve the problem that the catheter cannot be attached to the blood vessel wall, and achieve the effect of preventing blood and glue from mixing and reducing pain

Inactive Publication Date: 2021-05-21
广州是知投资咨询合伙企业(有限合伙)
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] In order to solve the problem that the catheter cannot be attached to the vessel wall in CAE adhesive embolization, the present invention provides a balloon dilatation catheter

Method used

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  • Balloon dilatation catheter and application thereof
  • Balloon dilatation catheter and application thereof
  • Balloon dilatation catheter and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0060] Figure 1-2 A side cross-sectional view of a balloon dilatation catheter in one embodiment of the invention is presented. Such as Figure 1-2 As shown, the balloon dilatation catheter of the present invention includes three cavities from the inside to the outside, namely a guide wire cavity, a punching cavity and a glue injection cavity. The cavity formed between the inner tube 7 and the middle tube 6 is a punching cavity, which communicates with the balloon 2 and is used to fill the balloon by punching. The cavity formed between the middle tube 6 and the outer tube 5 is a glue injection cavity, which communicates with the glue injection release part 3 and is used for filling the glue injection release part with glue through the glue injection port 9 . The glue injection port 9 is arranged at the tail of the glue injection cavity away from the tip 1 .

[0061] In this embodiment, the injection release part 3 is a catheter, and the relationship between the catheter an...

Embodiment 2

[0063] Figure 3-4 A side sectional view of a balloon dilatation catheter in another embodiment of the invention is given. Compared with embodiment 1, the difference of embodiment 2 is that the glue injection port 9 and the guide wire cavity 11 are the same cavity, and the glue injection cavity and the guide wire cavity are the same lumen, which reduces the manufacturing cost input, and the catheter diameter The smaller size is more conducive to entering the blood vessel, and the operation is more convenient.

Embodiment 3

[0065] Figure 5-6 A side sectional view of a balloon dilatation catheter in another embodiment of the invention is given. Compared with Example 1, the difference of Example 3 is that a development ring 4 is provided between the stamping cavity and the guide wire cavity, and the development ring 4 uses a platinum-iron alloy. In this embodiment, platinum and The content ratio of iridium is 9:1. The handle 8 is connected to the main part of the conduit by a connector 12 . Figure 6 It is a cross-sectional view of the connecting piece 12, and it can be seen from the cross-sectional view that the connecting piece 12 is provided with holes respectively connected to the three cavities of the catheter main body. The handle 8 and the injection port 9, the punching port 10 and the guide wire cavity 11 adopt a split design, the injection port 9, the punching port 10 and the guide wire cavity 11 are respectively connected to the handle 8 through one end of the handle catheter provided ...

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Abstract

The invention discloses a balloon dilatation catheter and an application thereof. The balloon dilatation catheter is characterized in that the balloon dilatation catheter comprises a tip, a balloon, a glue injection release part and a catheter body part, wherein a wire guide cavity, a stamping cavity and a glue injection cavity are formed in the catheter body part, the wire guide cavity communicates with the tip, the stamping cavity communicates with the balloon, the glue injection cavity communicates with the glue injection release part, and a handle is arranged on the catheter body part. According to the balloon dilatation catheter, due to design of the balloon, in the glue injection process, blood flow at a proximal end can be completely blocked, and blood at a dilatation section can be completely emptied, so that the balloon is withdrawn while pressure is applied to the glue injection part in vitro, and the blood and glue are prevented from being mixed. According to the balloon dilatation catheter, an operation can be performed under radiography, and the balloon dilatation catheter is more accurate than ultrasonic positioning. According to the balloon dilatation catheter, the varicose vein is closed under the action of an adhesive, and compared with heat treatment modes such as EVLA, RFA and EMA, the balloon dilatation catheter device disclosed by the invention can have the advantage that the occurrence rate of complications such as pain and tissue damage can be reduced.

Description

technical field [0001] The invention belongs to the field of medical devices, and in particular relates to a balloon dilatation catheter and an application thereof. Background technique [0002] Superficial varicose veins of the lower extremities refer to the progressive expansion and tortuosity of the superficial veins of the lower extremities caused by blood reflux due to insufficiency of the superficial venous valves of the lower extremities. Extremity edema, hyperpigmentation, eczema, or venous ulcers. Vein wall weakness, venous valve insufficiency, and increased venous pressure are considered to be important factors in the occurrence and development of varicose veins. Elastic fibers are the main component of the cell matrix of the vein wall, and the reduction of elastic fibers in the great saphenous vein has a certain relationship with the occurrence and development of varicose veins. Saphenous varicose disease has a long course and gradually worsens, and surgical tre...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61B17/12A61M25/10C22C5/04
CPCA61B17/12045A61B17/12031A61B17/12109A61B17/12181A61M25/104C22C5/04A61B2017/12127A61M2025/1052A61M2025/1079
Inventor 张智辉其他发明人请求不公开姓名
Owner 广州是知投资咨询合伙企业(有限合伙)