Coaxial contra-rotating cutting assembly

Abstract

The invention generally relates to intraluminal procedures, and, more particularly, to a contra-rotating cutting assembly for use with an atherectomy device to remove occlusive material from an occluded lumen, such as a blood vessel or other body lumen. The contra- rotating cutting assembly includes a rotatable housing having a distal end, an opposing proximal end and a lumen extending between thedistal and proximal ends. The housing is configured to rotate about a longitudinal axis in a first direction. The cutting assembly further includes a rotatable cutter head positioned within at leasta portion of the lumen of the housing and in coaxial alignment with the housing. The cutter head is configured to rotate about the longitudinal axis in a second direction opposite the first direction.

Description

[0001] Cross References to Related Applications [0002] This application is a provisional application from which priority may be claimed in later filed US non-provisional applications and / or foreign applications. technical field [0003] The present invention relates generally to endoluminal procedures, and more particularly to a counter-rotating cutting assembly for use with an atherectomy device to remove occlusive material from an occlusive lumen, such as a blood vessel or other body lumen. Background technique [0004] Millions of people suffer from and die from various forms of cardiovascular disease, including coronary artery disease and peripheral vascular disease (also known as peripheral artery disease). Coronary artery disease and peripheral vascular disease can result from narrowing of arteries from a condition called atherosclerosis, also known as atherosclerosis. Atherosclerosis is a progressive disease and may occur when fat, cholesterol and other substances ...

AI Technical Summary

Problems solved by technology

The features of the cutting assembly of the present invention enable improved control of occlusive material removal and further ensure collection of more aggregated material units, thereby overcoming the disadvantages of current atherectomy devices which lack effective capture during operation. The ability to dislodge additional particles of material and cause embolization of downstream vessels

The counter-rotatable cutting assembly of the present disclosure provides a different means of cutting and delivering occlusive material and addresses deficiencies of current devices

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