US 9,808,276 B2
Angioplasty balloon having selectively deployable cutting or scoring element and related methods
Claudio Silvestro, Roncadelle (IT)
Assigned to Invatec S.p.A., Roncadelle (IT)
Filed by Invatec S.p.A., Roncadelle (IT)
Filed on Apr. 25, 2013, as Appl. No. 13/870,613.
Prior Publication US 2014/0324079 A1, Oct. 30, 2014
Int. Cl. A61B 17/22 (2006.01); A61D 1/02 (2006.01); A61B 17/3207 (2006.01); A61M 25/10 (2013.01)
CPC A61B 17/32075 (2013.01) [A61M 25/104 (2013.01); A61M 2025/109 (2013.01)] 22 Claims
OG exemplary drawing
 
1. 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.