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Multiple-wing balloon catheter and membrane to reduce damage to coated expandable medical implants

a technology of expandable medical implants and balloon catheters, which is applied in the field of methods and systems for deploying coated expandable medical implants, can solve the problems of coating being routinely at risk of damage, coating being at risk of being damaged, and reducing the damage of coated medical implants. , to achieve the effect of reducing the damage of coated medical implants

Inactive Publication Date: 2007-05-03
BOSTON SCI SCIMED INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent describes a way to protect a coated medical implant from damage during a medical procedure. This is done by attaching the implant to a balloon catheter with a special multi-wing balloon that has at least four expandable folds. This system helps to prevent damage to the coating of the implant during the expansion of the balloon.

Problems solved by technology

When, for example, the therapeutic is delivered by a coated expandable implant, the coating can be damaged both during assembly and, afterwards, during the actual medical procedure.
When an implant having a therapeutic coating is being assembled, the coating is routinely at risk of damage.
Even after a stent has been crimped onto a catheter, the coating is also at risk of being damaged during the delivery of the stent.
These forces can be counterproductive if too large because they can tear the coating away from and off of the stent.
This tearing away can cause the therapeutic to be haphazardly adhered to the stent and, thus, reduce its effectiveness.

Method used

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  • Multiple-wing balloon catheter and membrane to reduce damage to coated expandable medical implants
  • Multiple-wing balloon catheter and membrane to reduce damage to coated expandable medical implants
  • Multiple-wing balloon catheter and membrane to reduce damage to coated expandable medical implants

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Embodiment Construction

[0012]FIG. 1 is a cross-sectional view of the working end of a multi-wing balloon catheter in accord with one embodiment of the present invention. In FIG. 1 the multi-wing balloon 10, expandable folds 11, and internal lumen 12 of the catheter can all be seen. Also visible in FIG. 1 is a medical implant 14 with a coating 13, the implant 14 being placed around the multi-wing balloon 10.

[0013] The multi-wing balloon 10 in this embodiment may be used to deliver the implant 14 to numerous target sites both inside and outside of the human body. During its use a fluid may be forced down the internal lumen 12 to the multi-wing balloon 10 to inflate the multi-wing balloon 10. As more fluid is injected into the multi-wing balloon 10 the balloon 10 may begin to expand both near its core and out at its peripheral folds 11. As the multi-wing balloon 10 expands it may exert a force on the implant 14 via the expandable folds 11 that may be in contact with the coating 13 of the implant 14. Due to ...

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Abstract

System for reducing the damage to a coated medical implant during the expansion of the coated implant is provided. The system may include a coated medical implant, a multi-wing balloon catheter having at least four expandable wings, and an expandable membrane positioned between the balloon and the medical implant.

Description

RELATED APPLICATION [0001] This application is a continuation of and claims priority to U.S. patent application Ser. No. 10 / 035,218, which has issued as U.S. patent. The '218 application, in its entirety, is incorporated by reference into this application.FIELD OF THE INVENTION [0002] The present invention relates to methods and systems for deploying coated expandable medical implants. More particularly the present invention regards methods and systems that employ a multi-wing balloon catheter for deploying a coated medical implant at a target site. Background [0003] Expandable medical implants are positioned and placed in the body during the completion of numerous contemporary medical procedures. These implants may include stents, vena-cava filters, and aneurism coils and may be used for innumerable purposes including reinforcing damaged vessels, replacing ruptured vessels, and delivering therapeutic to a target site in the body. This therapeutic may be delivered via coatings place...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): A61F2/06A61F2/958A61M25/00
CPCA61F2/958A61F2250/0067A61M25/1002A61M25/1027A61M25/1038A61M2025/1004
Inventor MC HALE, TOMWEBER, JANO'CONNOR, TIMOTHY
Owner BOSTON SCI SCIMED INC