Angiocarpy sacculus dilating catheter

A technique for dilating catheters and cardiovascular systems, which is applied to balloon catheters, dilators, stents, etc., can solve the problems of high requirements for molds and equipment, high requirements for welding equipment, and increased processing costs, and achieves low processing costs and safety. High, easy-to-make effects

Inactive Publication Date: 2009-11-04
刘文修
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] Due to the high precision of the balloon of the balloon dilation catheter, the requirements for molds and equipment are correspondingly high, the processing is difficult, and the scrap rate is

Method used

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  • Angiocarpy sacculus dilating catheter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] Embodiment 1: The expansion catheter includes a lumen joint 1, a Y-shaped joint 2, a protective sleeve 3, an injection port 7, a catheter 4 and a balloon 6, and one end of the Y-shaped joint 2 is connected to the lumen joint 1, and the other end is One end of the liquid injection port 7 is connected with the catheter and a protective sleeve is housed, and a balloon 6 is arranged at the front end of the catheter 4 .

[0016] The catheter 4 is a two-lumen tube set structure, which is divided into an inner catheter and an outer catheter. Both the inner catheter and the outer catheter are connected to the Y-shaped joint 2. The two ends of the balloon 6 are welded on the outer catheter, and the inner catheter passes through the The end of the balloon is in a pointed configuration, and there are two marking rings 5 ​​on the inner catheter at the balloon site; there is a closed cavity between the inner catheter and the outer catheter, which communicates with the injection port,...

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Abstract

The invention provides an angiocarpy sacculus dilating catheter, belonging to the angiocarpy sacculus dilating catheter. The dilating catheter comprises a lumen connector, a Y-shaped connector, a protective sleeve, an injection port, a canal, a mark ring and a sacculus, wherein one end of the Y-shaped connector is connected with the lumen connector, another end of the Y-shaped connector is provided with the injection port, and the third end of the Y-shaped connector is connected with the canal and is provided with the protective sleeve; and the front end of the canal is provided with the sacculus. The angiocarpy sacculus dilating catheter has the advantages that the sacculus dilating catheter is made of Nylon 12 and PEBAX with good biocompatibility and high pressure resistance, has good adaptability, large bursting pressure, unique structure and high safety, can be applied to interventional therapy on congenital stenosis of pulmonary valve, aortic stenosis and other diseases, and adopts single lumen sleeved sacculus structure to lead smoothness of injection and pumpback; the connection of the sacculus and the canal adopts welding process, the sacculus and the canal are integrated to greatly reduce the risk of pressuring breaking; and the thread lumen and the injection lumen are respectively arranged to reduce the risk of liquid leakage.

Description

technical field [0001] The invention relates to a dilation catheter for treating cardiovascular diseases, in particular to a cardiovascular balloon dilation catheter. Background technique [0002] Congenital pulmonary stenosis is a disease of right ventricular outflow tract obstruction. It is a relatively common congenital heart disease, accounting for about 8% of the incidence of congenital heart disease. According to the site of stenosis, it can be divided into stenosis of the valve, infundibulum, trunk and branch of the pulmonary artery. Pulmonary valve stenosis is the most common type of simple right ventricular outflow tract obstruction, accounting for about 80-90%. Infundibulum pulmonary artery stenosis is extremely rare. In order to prevent further aggravation of right ventricular outflow tract obstruction, progressive right ventricular hypertrophy and secondary right heart failure, it is necessary to treat patients with more than mild right ventricular outflow tract...

Claims

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Application Information

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IPC IPC(8): A61M25/10A61M29/04A61F2/958
Inventor 刘文修吴言革
Owner 刘文修
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