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Cutback method for intravascular dilation catheter

A catheter and tube technology, which is used in the field of manufacturing catheters and can solve problems such as balloon inflation

Inactive Publication Date: 2017-08-29
AACHEN SCI INT PTE LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the possibility to inflate the balloon to the desired size at the target location must be maintained

Method used

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  • Cutback method for intravascular dilation catheter
  • Cutback method for intravascular dilation catheter
  • Cutback method for intravascular dilation catheter

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0028] figure 1 Various views of the distal region of the balloon catheter 1 according to the invention are shown. In its distal section, the balloon catheter 1 has a balloon 2 . Furthermore, the balloon catheter 1 has an inner tube 9 which also extends through the interior of the balloon 2 .

[0029] exist figure 1 In a, the airbag 2 can be identified in an inflated state after inflating said airbag by supplying fluid under pressure. In this form, the balloon 2 is suitable for eliminating organ strictures.

[0030] existfigure 1 In b, the airbag 2 can be identified in the non-inflated state. Although the cross-section of the airbag 2 is smaller than the figure 1 a, but it is too large to be guided through narrow lumen vessels.

[0031] figure 1 c shows the airbag 2 in a folded state, corresponding to the prior art. In said state, the non-inflated airbag skin is folded over so that it fits snugly, and thus with the figure 1 b, the cross section is significantly reduce...

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PUM

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Abstract

The application relates to a method for producing a catheter (1) with a proximal portion, a distal portion, and an expandable element (2) arranged in the distal portion, wherein the expandable element (2) can be brought from a contracted state into an expanded state by the delivery of a fluid, and a removable protective device in the form of a tube (5) is arranged around the expandable element (2) in the contracted state, and wherein the tube (5) is turned back over the expandable element (2) and is guided with the catheter (1) through one or more nozzles (6), wherein the tube (5) is stretched and the internal diameter of the tube (5) decreases. The application further relates to a corresponding catheter (1) with a tube (5) pulled over the expandable element (2). The application permits the provision of a catheter (1) which is characterized by a particularly small cross section in the area of the distal portion.

Description

technical field [0001] The present invention relates to a method for manufacturing a catheter having a proximal section, a distal section and an expandable element arranged in the distal section, the expandable element can be brought from a contracted state into an expanded state by supplying a fluid, and in the A removable protector in the form of a tube is arranged around the expandable element in the collapsed state. Background technique [0002] In percutaneous coronary angioplasty (PTCA) dilation balloon catheters (dilatation catheters, balloon catheters) with an expandable element (balloon) in their distal section are used. Access to the patient's cardiovascular system is via an inserted instrument, usually via the femoral artery in the groin. The personalized medical device is inserted and advanced percutaneously via the insertion instrument into the patient's cardiovascular system until the distal end is in the desired location. Specifically, a guide catheter is in...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61M25/10B29C63/18
CPCA61M25/1002A61M25/1029A61M25/1038A61M2025/1004A61M2025/1031A61M2025/1081B29C63/0056B29C63/18A61L29/041B29K2027/18B29L2031/7542
Inventor A·鲁本
Owner AACHEN SCI INT PTE LTD
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