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US 2012/0083809 A1Published application
Positionable Valvuloplasty Catheter
AssigneeInterValve, Inc.
InventorsWilliam Drasler, Wesley Pedersen, Mark Ungs
Life of this patent
Estimating the term…
Abstract
In one embodiment, a balloon catheter is provided for use during annuloplasty. Preferably, the balloon includes a distal, noncompliant portion and a proximal semi-compliant portion which allows for sequential inflation, reliable positioning, and compliance measurement.
Claims10
A balloon catheter comprising:
- a balloon disposed at a distal end of an elongated shaft;
- a proximal portion of said balloon comprising a semi-compliant material;
- a distal portion of said balloon comprising a non-compliant material and having a first fully inflated diameter;
- a waist portion of said balloon comprising a non-compliant material and having a second fully inflated diameter that is smaller than said first fully inflated diameter.
1 more element
A method of operating a balloon catheter comprising:
- advancing a balloon catheter to a valve;
- inflating a distal portion of said balloon and a waist portion of said balloon in a left ventrical outflow tract;
- retracting said balloon so as to locate said waist portion in an annulus of said valve;
- further inflating said balloon to expand a diameter of a proximal portion of said balloon and expand against leaflets of said valve.
1 more element
A balloon catheter comprising:
- a balloon disposed at a distal end of an elongated shaft;
- a proximal portion of said balloon comprising a semi-compliant material;
- a distal portion of said balloon comprising a non-compliant material and having a first fully inflated diameter;
- a waist portion of said balloon comprising a semi-compliant material and having a second fully inflated diameter that is smaller than said first fully inflated diameter.
1 more element
A balloon catheter comprising:
- a balloon disposed at a distal end of an elongated shaft;
- a proximal portion, a distal portion and a waist portion of said balloon, said waist portion being located between said distal portion and said proximal portion;
- wherein said waist portion has a first length at a first balloon pressure and a second length at a second pressure.
A method of operating a balloon catheter comprising:
- advancing a balloon catheter to a valve;
- inflating a proximal portion, a distal portion and a waist portion of said balloon;
- positioning said waist portion at a valve annulus of a patient;
- further inflating said balloon to change a length of said waist portion.
1 more element
Dependencies are inferred from the claim text.