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US 12,642,946 B2Granted
Balloon catheter and methods of use
AssigneeCagent Vascular, Inc.
InventorsRobert M. Giasolli, Peter Johansson
Life of this patent
Estimating the term…
Abstract
Systems and methods can involve wedge dissectors attached to strips in turn attached to medical balloons, for forming serrations within vascular wall tissue for angioplasty as well as drug delivery. Such balloon blowing techniques can reduce the balloon profile, the material costs, and the manufacturing time to build a serrated balloon catheter device. The design and process to build this type of balloon is described herein.
Claims21
An intravascular device comprising:
- a balloon;
- and
- a plurality of strips, each strip of the plurality of strips comprising an inferior facing surface adhered to the balloon, a first sloped side wall, and a second sloped side wall, each strip of the plurality of strips including a plurality of wedge dissectors spaced apart along a surface of each strip, each strip extending along an outer surface of the balloon,
- wherein the wedge dissectors comprise a base surface, and an unhoned radially outward facing surface;
- wherein the balloon is configured to partially expand and create a plurality of lobes between the plurality of strips, wherein a first lobe of the plurality of lobes comprises a first bulbous shape that contacts the first sloped side wall of a first strip of the plurality of strips and contacts the second sloped side wall of a second strip of the plurality of strips, wherein a second lobe of the plurality of lobes comprises a second bulbous shape that contacts the first sloped side wall of the second strip of the plurality of strips and the second sloped side wall of a third strip of the plurality of strips, and
- wherein the first lobe and the second lobe apply a force to the sloped side walls of the first strip to rotate the first strip from a generally tangential orientation to a generally perpendicular orientation.
3 more elements
An intravascular device comprising:
- a balloon;
- and
- a plurality of strips, each strip of the plurality of strips including a plurality of wedge dissectors spaced apart along a surface of each strip, each strip extending along an outer surface of the balloon,
- wherein the wedge dissectors comprise a base surface, an unhoned radially outward facing surface, and sloped side walls extending from the base surface to the unhoned radially outward facing surface;
- wherein the balloon is configured to expand and create lobes between the plurality of strips, wherein the lobes contact nearly the entire circumference of a vessel wall when the plurality of strips are oriented perpendicularly, wherein the lobes are filled before the wedge dissectors penetrate the vessel wall, and
- wherein the sloped side walls in combination with the expansion of the lobes are configured to produce a plurality of longitudinally oriented lines to a medial layer that increase volumetric blood flow.
3 more elements
Dependencies are inferred from the claim text.