Back to results
US 9,808,276 B2Granted
Angioplasty balloon having selectively deployable cutting or scoring element and related methods
AssigneeInvatec S.r.l.
InventorClaudio Silvestro
Life of this patent
Estimating the term…
Abstract
Balloon angioplasty catheters having cutting or scoring members that are moveable in at least one direction between a stowed position (away from the angioplasty balloon) and an operative position (on the angioplasty balloon). A balloon catheter of the present invention alternately useable to perform balloon dilation of a body lumen with and without concurrent cutting or scoring.
Claims22
A balloon catheter device comprising:
- an elongate catheter shaft;
- an inflatable balloon positioned on the catheter shaft;
- and
- at least one cutting or scoring element that is axially moveable relative to the catheter shaft along a longitudinal axis of the catheter shaft between a first position wherein it does not cause the balloon to perform a cutting or scoring function and a second position wherein it does cause the balloon to perform a cutting or scoring function;
- wherein the at least one cutting or scoring element comprises a single elongate member that forms loops or convolutions when the at least one cutting or scoring element is in the first position, and forms loops or convolutions around the balloon when the at least one cutting or scoring element is in the second position and the balloon is in an inflated configuration.
2 more elements
The balloon catheter device according to 1, wherein the at least one cutting or scoring element has a blunt distal tip that does not damage the balloon as it moves between the first position and the second position.
Dependencies are inferred from the claim text.