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:
Sep. 07, 1993
Filed:
Oct. 25, 1990
Enrique J Klein, Los Altos, CA (US);
Mark E Plaia, San Carlos, CA (US);
James R Kermode, Sunnyvale, CA (US);
Donald S Baim, Newton, MA (US);
Richard P Mueller, Mountain View, CA (US);
Devices for Vascular Intervention, Inc., Redwood City, CA (US);
Abstract
Atherectomy catheters are described having a cylindrical cutting head rotatably mounted at the distal end of a catheter body. The head has an axially elongated aperture and an open interior. A severing means is disposed adjacent the elongated aperture such that atheromatous material invaginated by the head is severed and diverted into the interior of the head. A preferred embodiment has the elongated aperture helically-disposed about the central axis of the cylindrical head and a cutting means formed integrally along the periphery of the aperture. Another preferred embodiment has the cylindrical head provided with a tapered distal end that extends distally from a housing for the head and incorporates an extension of the elongated aperture.