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Balloon catheter having a textured member for enhancing balloon for stent retention

a textured member and balloon catheter technology, applied in the field of balloon catheters, can solve the problem of balloon falling out of position during balloon inflation, and achieve the effect of improving the ability of the balloon

Inactive Publication Date: 2007-10-18
ABBOTT CARDIOVASCULAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The textured section effectively maintains balloon position during inflation, reduces restenosis risks, and prevents vessel injury by focal stress distribution, ensuring precise balloon positioning and stent interaction without hindering balloon retraction.

Problems solved by technology

However, one difficulty has been the tendency of the balloon to slip out of position during inflation of the balloon, a problem referred to as “watermelon seeding”.

Method used

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  • Balloon catheter having a textured member for enhancing balloon for stent retention
  • Balloon catheter having a textured member for enhancing balloon for stent retention
  • Balloon catheter having a textured member for enhancing balloon for stent retention

Examples

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Embodiment Construction

[0022]FIG. 1 illustrates a rapid exchange type balloon catheter 10, generally comprising a shaft 11 with an inflation lumen 12, a guidewire lumen 13 in a distal shaft section configured to slidingly receive a guidewire 15, and a balloon 14 on the distal shaft section. An adapter 16 at the proximal end of catheter shaft 11 is configured to direct inflation fluid into inflation lumen 12, to thereby inflate the balloon 14. FIG. 1 illustrates the balloon 14 in a low profile configuration prior to inflation, for introduction and advancement within the patient's body lumen 27. In use, the distal end of catheter 10 is advanced to a desired region of the patient's body lumen 27 in a conventional manner either over previously positioned guidewire 15, or with guidewire 15 already in the catheter 10. The balloon 14 is inflated to perform a procedure such as dilating a stenosed region of the body lumen, or expanding a stent as discussed in more detail in relation to the embodiment of FIG. 7, an...

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PUM

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Abstract

This invention is directed to a balloon catheter having at least one advancement wire with a distal end section secured to a distal tip section of the catheter, and with a textured section extending along the outer surface of at least a portion of an inflatable section of the catheter balloon. The textured section of the advancement wire preferably improves the ability of the balloon to remain in position in the patient's body lumen during inflation of the balloon to perform a medical procedure such as balloon angioplasty or stent touch-up.

Description

BACKGROUND OF THE INVENTION [0001] This invention generally relates to catheters, and particularly intravascular catheters for use in percutaneous transluminal coronary angioplasty (PTCA) or for the delivery of stents. [0002] In percutaneous transluminal coronary angioplasty (PTCA) procedures a guiding catheter is advanced in the patient's vasculature until the distal tip of the guiding catheter is seated in the ostium of a desired coronary artery. A guidewire is first advanced out of the distal end of the guiding catheter into the patient's coronary artery until the distal end of the guidewire crosses a lesion to be dilated. A dilatation catheter, having an inflatable balloon on the distal portion thereof, is advanced into the patient's coronary anatomy over the previously introduced guidewire until the balloon of the dilatation catheter is properly positioned across the lesion. Once properly positioned, the dilatation balloon is inflated with inflation fluid one or more times to a...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61M29/00A61F2/06A61F2/84A61M25/01A61M25/10A61M29/02
CPCA61F2/958A61F2002/9505A61M25/0102A61M2025/1056A61M2025/0183A61M2025/1004A61M25/104
Inventor LIMON, TIMOTHY A.
Owner ABBOTT CARDIOVASCULAR
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