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Transthoracic bicuspid valve balloon dilatation catheter assembly and technology thereof

A technology for dilating catheters and balloon catheters, applied in balloon catheters, catheters, dilators, etc., can solve the problems of complex operation, high medical risk, troublesome remedial measures, etc., and achieves simple manufacturing process, simple clinical operation, and avoidance of damage. effect of risk

Pending Publication Date: 2018-11-06
徐州亚太科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Due to the long intervention path of percutaneous mitral valve dilatation, the atrial septum must be punctured into the left atrium. At the same time, the balloon catheter is a latex balloon, which has the disadvantages of low burst pressure, many accessories and relatively complicated operation. It has been shown in clinical application that the manufacturing process of the balloon is relatively complicated. Once the balloon ruptures, the pre-taken remedial measures are more troublesome, and the medical risks are also greater; the existing balloons are generally made of latex material, which is relatively pressure-resistant. Low, it will age and deteriorate after a long time of use, the pressure it bears will drop, and the risk of bursting during filling and expansion is high, and the latex balloon has a complex structure, relatively cumbersome processing technology, low production efficiency, and is not easy to scale production

Method used

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  • Transthoracic bicuspid valve balloon dilatation catheter assembly and technology thereof
  • Transthoracic bicuspid valve balloon dilatation catheter assembly and technology thereof
  • Transthoracic bicuspid valve balloon dilatation catheter assembly and technology thereof

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Embodiment 1

[0035] Such as figure 1 and figure 2 As shown, a transthoracic mitral valve balloon dilatation catheter assembly includes a balloon catheter 1 and a guide bougie 2. One end of the balloon catheter 1 is a handle 11, and the other end is a balloon 12. The handle 11 and the The balloon 12 is connected through a catheter part 13, and the inner catheter 131 of the catheter part 13 is sleeved inside the outer catheter 132; the handle 11 is Y-shaped, and the handle 11 includes a guide wire cavity 111 and a filling cavity 112, and the guide wire cavity 111 communicates with the inner catheter 131 of the catheter part 13, and is used to pass through the guide bougie 2. The filling cavity 112 is a cavity formed by the outer wall of the inner catheter 131 and the inner wall of the outer catheter 132, and is used for filling the narrowed area of ​​the balloon 12. Mitral valve; the distal end of the outer catheter 132 is connected to the proximal end of the balloon 12, the inner catheter...

Embodiment 2

[0046] Such as Figure 5 Shown, a kind of technique of transthoracic mitral valve dilatation catheter assembly comprises the following steps:

[0047] a. Make the catheter part: put the Pebax pellets in the drying cylinder of the precision extruder, set the drying temperature to 75°C, and the drying time to 4h-6h, then set the extrusion temperature to 230°C, and the extrusion pressure to 50MPa, and then extrude Out of molding, to obtain the inner catheter and outer catheter;

[0048] b. Make the balloon part: put the nylon catheter into the forming mold and heat it to 230°C, then take it out and cool it for 3 minutes to make balloons of various specifications according to clinical needs;

[0049] c. Connecting the catheter and the balloon: melt the connecting part of the catheter and the balloon through a hot-melt machine;

[0050] d. Make the handle part: inject polycarbonate material into a Y-shaped handle, and glue it to the catheter;

[0051] e. Manipulating the guide w...

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Abstract

The invention discloses a transthoracic bicuspid valve balloon dilatation catheter assembly and a technology thereof. The assembly comprises a balloon catheter and a guiding bougie. One end of the balloon catheter is a handle, and the other end of the balloon catheter is a balloon. The handle is in a Y shape, and the handle comprises a guide wire cavity and a filling cavity; the far end of the outer catheter is connected with the near end of the balloon, an inner catheter transversely penetrates through the balloon, and a tip end is formed at the far end of the balloon; the balloon is a cylinder, and the connection of the balloon and the outer catheter has a gradient, and two developing rings are fixedly installed inside the inner catheter inside the balloon; a heat shrink tube is arrangedbetween the handle and the catheter as transition; the guiding bougie is formed by connecting the control handle and the control guide wire. The balloon dilatation catheter assembly can complete biscupid valve narrow separation technology, the transthoracic intervention path is short, operation is easy, the balloon catheter is made of nylon materials, the explosion pressure is large, the safety is higher, meanwhile, no excessive fitting operation is needed, and various complications are reduced.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a transthoracic mitral valve balloon expansion catheter assembly and its technology. Background technique [0002] Mitral valve stenosis is a structural change of the heart's mitral valve due to various reasons, resulting in a smaller, limited or obstructed opening of the mitral valve, resulting in obstruction of left atrial blood flow, decreased left ventricular return blood volume, and increased left atrial pressure. A series of abnormal changes in the structure and function of the heart. The most common etiology is rheumatism, which mostly occurs in 20-40 years old, and women are more than men. There is no specific cure for this disease at present, and cardiac interventional surgery and surgical treatment can be cured. Percutaneous balloon mitral valvuloplasty (PBMV) has gradually replaced the closed dissection. It has been clinically verified for more than 30 years. ...

Claims

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Application Information

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IPC IPC(8): A61M25/10A61M29/04
CPCA61M25/0068A61M25/1002A61M25/10182A61M25/1027A61M25/1029A61M25/1034A61M29/02A61M2205/02A61M2025/1079
Inventor 刘文修吴言革姚曙光
Owner 徐州亚太科技有限公司
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