The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 05, 2012
Filed:
May. 14, 2009
Matthew D. Cambronne, Moundsview, MN (US);
Robert E. Kohler, Lake Elmo, MN (US);
Stephen Latham, Sun Prairie, WI (US);
Jesse C. Darley, Madison, WI (US);
Matthew D. Cambronne, Moundsview, MN (US);
Robert E. Kohler, Lake Elmo, MN (US);
Stephen Latham, Sun Prairie, WI (US);
Jesse C. Darley, Madison, WI (US);
Cardiovascular Systems, Inc., St. Paul, MN (US);
Abstract
The invention provides a rotational and/or axially translatable atherectomy system, device and method having a flexible, elongated drive shaft or catheter having an expandable and collapsible conical coil with a cutting edge on the coil's large diameter proximal end. When retracted, the coil's sections are collapsed around each other, held together in the retracted position by a sheath that, when distally retracted, allows the coil to automatically expand. The coil is expanded at a point distal to the occlusion, then pulled proximally to cut the occluding material near the lumen wall. The proximal pulling force may be combined with low-speed rotation and/or translation and/or axial vibration at low to ultrasonic frequency.