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EP0409436A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Catheter with heat-fused balloon with waist

Assignee: Baxter International Inc
•
Filing: 1990-06-29
•
Granted: —
•
Expires: 2010-06-29
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Abstract

Abstract Disclosed is an everting balloon catheter (10) in which the balloon (20) has a waist (94) at the desired eversion point to minimize the size of the distal tip (96) of the catheter during insertion. Preferably, the distal end of the outer body is bevelled and the waist is located just distal and radial to the tip of the outer body (12) when the inner body (14) is fully extended distal to the outer body. Usually, the waist is formed by heat shrinking the balloon during manufacture, thus usually increasing balloon thickness at the waist. Also, in the disclosed invention, the balloon is attached to the outer catheter body via heat fusion. Generally, the outer body and the balloon are both formed of compositions having at least one component in common to promote heat fusion for attachment of the balloon. Preferably that component is polyethylene.

Inventors

  • 👤 Manouchehr Miraki
  • 👤 Carmen Diaz

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-24 04:03
CPC Classifications
A; A61; A61M; A61M25/00; A61M25/01; A61M25/0105; A61M25/0119

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 81 words
An everting balloon catheter having a distal tip and comprising: an outer tube having a distal end; an inner tube body having a distal end and coaxially disposed internal to the outer body; and a balloon attached at one end to the distal end of the inner body and at the other to the distal end of the outer body, the balloon having a waist to minimize the size of the distal tip of the catheter when the balloon is inverted.
Claim 2
Dependent Claim 81 words
An everting balloon catheter having a distal tip and comprising: an outer tube having a distal end; an inner tube body having a distal end and coaxially disposed internal to the outer body; and a balloon attached at one end to the distal end of the inner body and at the other to the distal end of the outer body, the balloon having a waist to minimize the size of the distal tip of the catheter when the balloon is inverted.
Claim 3
Dependent Claim 43 words
An everting balloon catheter according to claim 1 and wherein the distal end of the outer tube is bevelled and the waist is located just distal and radial to the outer tube when the inner body is fully extended within the outer body.
Claim 4
Dependent Claim 31 words
An everting balloon catheter according to claim 2 wherein the balloon has a proximal anchor portion and a distal extending portion and the waist defines the boundary between the two portions.
Claim 5
Dependent Claim 34 words
An everting balloon catheter according to claim 1 wherein the waist is formed by heat shrinking the balloon during manufacture to increase the balloon thickness and narrow the balloon diameter at the waist location.
Claim 6
Dependent Claim 19 words
An everting balloon catheter with an anchor annulus having the balloon attached to the outer body via heat fusion.
Claim 7
Dependent Claim 19 words
An everting balloon catheter with an anchor annulus having the balloon attached to the outer body via heat fusion.
Claim 8
Dependent Claim 41 words
An everting balloon catheter with an anchor annulus according to claim 5 and wherein the outer body and the balloon are both formed of compositions having at least one component in common to promote heat fusion for attachment of the balloon.
Claim 9
Dependent Claim 32 words
An everting balloon catheter with an anchor annulus according to claim 6 and wherein the component is selected from the group consisting of polyethylene, ethylene vinyl acetate to copolymer, and Surlyn. .
Claim 10
Dependent Claim 18 words
An everting balloon catheter with an anchor annulus according to claim 7 and wherein the component is polyethylene.

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