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Expansion injection system for preventing and treating arterial stenosis

An injection system and arterial stenosis technology, applied in dilators, balloon catheters, catheters, etc., can solve the problems of inability to expand the narrow part of the cavity, difficult to control the force, and change of puncture angle, so as to facilitate repeated multi-point puncture of blood vessels , Reasonable structural design, guaranteed effectiveness

Pending Publication Date: 2021-01-01
湖州艾路通医疗科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The injection mechanism includes a support assembly, a tip, a hollow tube, and an injection needle. The pullback action of the hollow tube expands the support assembly radially and drives the guide hole of the injection needle to provide guidance and support for the injection needle and realize the injection function. In this patented technology, the expansion of the support component cannot achieve the expansion of the narrow part of the cavity; secondly, the device realizes the expansion and repositioning of the support component through the pull-back action, which easily changes the position of the support component in the cavity, resulting in positioning Inaccurate
Pulling back by hand is not only unstable, but also difficult to control, resulting in changes in the puncture angle

Method used

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  • Expansion injection system for preventing and treating arterial stenosis
  • Expansion injection system for preventing and treating arterial stenosis
  • Expansion injection system for preventing and treating arterial stenosis

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Embodiment one: if figure 1 , 2 , 3, 4, and 5, the expansion injection system for the prevention and treatment of arterial stenosis in this embodiment includes a catheter 1, which has a guide wire channel and a water injection channel extending along its long axis inside the catheter 1; the first balloon 2, the above-mentioned The first balloon 2 is wrapped and arranged at one end of the above-mentioned catheter 1, and its inner cavity is connected with the above-mentioned water injection channel. 3 Connected to the other end of the catheter 1, on which a water injection port 31 and a drug injection port 33 are arranged, the water injection channel communicates with the corresponding end of the water injection channel, and the drug injection port 33 is connected to the puncture guide socket 34; the catheter The other end of the joint 3 or the catheter 1 is provided with a guide wire port 32 communicating with the above-mentioned guide wire channel, and the above-mentio...

Embodiment 2

[0049] Embodiment two: if Image 6 and 7 As shown, it also includes a needle tube holder 6. One end of the above-mentioned needle tube holder 6 is provided with a lumen inside, and the other end is provided with a columnar socket part 61 matching the above-mentioned needle tube intervention cavity 341. The needle tube intervention cavity 341 and the socket part 61 are matching columnar structures, the end of the above-mentioned needle tube 51 away from the above-mentioned puncture needle 5 penetrates into the above-mentioned socket part 61, and extends to communicate with the end close to the above-mentioned lumen, and the above-mentioned socket part 61 is used for inserting the above-mentioned The needle tube is inserted into the cavity 341, and slides along the above-mentioned needle tube insertion cavity 341 under the action of an external force, thereby pushing and pulling the above-mentioned needle tube 51 so that the needle tip of the puncture needle 5 is pushed out or r...

Embodiment 3

[0054] Embodiment three: as Figure 8 As shown, the above-mentioned puncture guide tube 4 is provided with a plurality of pieces, and one end passes through one end of the above-mentioned catheter 1 respectively, and is evenly fitted and fixed on the tapered surface along the axial direction of the tapered structure at the corresponding end of the above-mentioned first balloon 2. Above, the above-mentioned puncture needle 5 is provided with a plurality of corresponding ones, and the quantity is consistent with the quantity of the above-mentioned puncture guide tube 4, and the needle tail of each above-mentioned puncture needle 5 is connected with the above-mentioned needle tube 51, and the above-mentioned puncture needle 5 is respectively provided by the above-mentioned puncture needle. Guide the tube base 34 and enter the corresponding above-mentioned puncture guide tube 4 .

[0055] This embodiment realizes multi-point injection administration, which can effectively avoid an...

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Abstract

The invention relates to an expansion injection system for preventing and treating arterial stenosis, which comprises a catheter, wherein a guide wire channel and a water injection channel extending in the long axis direction of the catheter are arranged inside the catheter; a first balloon which is wrapped at one end of the catheter, wherein the inner cavity of the first balloon is communicated with the water injection channel, and after the first balloon is filled with water, both ends of the first balloon are tapered structures; a catheter joint which is connected to the other end of the catheter, wherein a water injection port and a medicine injection port are formed in the catheter joint, the water injection channel is communicated with the water injection channel, and a medicine injection port is connected with the puncture guide tube base; a guide wire port which is provided on the catheter joint or the catheter, and is communicated with the guide wire channel; a puncture guidetube which is arranged in the catheter, wherein one end of the puncture guide tube passes through the catheter and is attached to the taped surface of the end close to the first balloon in the long axis direction of the catheter, and the other end of the puncture guide tube extends through the inside of the catheter to connect with the puncture guide tube base; and a puncture needle, wherein the needle tail of the puncture needle is connected with a needle, and passes through the puncture guide tube base. The invention has advantages of guaranteeing the stability of a puncture angle and preventing the balloon from damage effectively.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to an expansion injection system for preventing and treating arterial stenosis. Background technique [0002] Peripheral arterial disease (PAD) is a disease in which peripheral arterial stenosis and occlusion are caused by the formation of peripheral atherosclerotic plaques, which in turn leads to chronic ischemia of the limbs. It is an important cause of death and disability in the current global disease spectrum, and its mortality rate is second only to coronary heart disease and stroke in cardiovascular and cerebrovascular diseases. [0003] At present, the main methods of endovascular treatment technology are balloon dilation angioplasty and stent implantation. The long-term restenosis rate of traditional balloon dilation angioplasty can be as high as 80%, but the implantation of stents has brought new problems such as stent-related complications (stent migration, fract...

Claims

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Application Information

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IPC IPC(8): A61B17/34A61M25/10A61M29/04
CPCA61B17/3415A61B17/3478A61M25/0071A61M25/0084A61M25/1002A61M25/1011A61M29/02A61M2025/1079
Inventor 谭最
Owner 湖州艾路通医疗科技有限公司
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