Intravascular device
AssigneeCagent Vascular, Inc.
InventorsPeter Schneider, Robert M. Giasolli
Life of this patent
Estimating the term…
Abstract
An intravascular device can comprise a carrier and an expansion apparatus. The device can be used for intravascular treatment of atherosclerotic plaque. The carrier can be reversibly expandable and collapsible within a vessel and can have ribbon strips extending between opposite ends in a longitudinal direction of the carrier. The ribbon strips can each be formed with a plurality of elongated protrusions thereon. The expansion apparatus can be used to actuate the ribbon strips each with the plurality elongated protrusions to pierce a luminal surface of the plaque with lines or patterns of microperforations which act as serrations for forming cleavage lines or planes in the plaque.
Claims21
(canceled)
An intravascular device comprising:
- a balloon configured to expand to create a plurality of microperforations in a vessel wall of a vessel, the balloon comprising a plurality of strips, each strip of the plurality of strips including a plurality of microperforators spaced apart along a surface of each strip, each strip extending along an outer surface of the balloon, wherein expanding the balloon forms cleavage lines or planes in an atherosclerotic plaque of the vessel wall,
- wherein the balloon forms microperforations while leaving most of the surface of the atherosclerotic plaque intact, leading to less separation of the atherosclerotic plaque from the vessel wall,
- wherein each microperforator comprises a first dimension and a second dimension, wherein the first dimension is greater than the second dimension.
An intravascular device comprising:
- a balloon configured to expand to create a plurality of microperforations in a vessel wall of a vessel, the balloon comprising a plurality of strips, each strip of the plurality of strips including a plurality of microperforators spaced apart along a surface of each strip, each strip extending along an outer surface of the balloon,
- wherein the microperforations leave most of the surface of the atherosclerotic plaque intact, leading to less separation of the atherosclerotic plaque from the vessel wall, wherein the microperforations act as nucleation sites for void formation in an atherosclerotic plaque of the vessel wall,
- wherein each microperforator comprises a first dimension and a second dimension, wherein the first dimension is greater than the second dimension.
An intravascular device comprising:
- a balloon configured to expand to create a plurality of microperforations in a vessel wall of a vessel, the balloon comprising a plurality of strips, each strip of the plurality of strips including a plurality of microperforators spaced apart along a surface of each strip, each strip extending along an outer surface of the balloon,
- wherein the balloon forms microperforations while leaving most of the surface of the atherosclerotic plaque intact, leading to less separation of the atherosclerotic plaque from the vessel wall, wherein stress energy for compressing the atherosclerotic plaque is released along the microperforations formed in the atherosclerotic plaque to control crack propagation,
- wherein each microperforator comprises a first dimension and a second dimension, wherein the first dimension is greater than the second dimension.
Dependencies are inferred from the claim text.