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:
Apr. 29, 2003
Filed:
Sep. 28, 2001
Eric B. Hamilton, Washougal, WA (US);
Tim Johnson, Seatac, WA (US);
SciMed Life Systems, Inc., Maple Grove, MN (US);
Abstract
An ablative burr ( ) that may be used for a medical procedure, such as an atherectomy, that does not require the user of an elongate flexible drive shaft. The burr comprises a main body ( ) that is elastically connected to an abrasive shell member ( ). One or more oscillatory driver(s) ( ), such as a piezoelectric transducer, is disposed between the shell member and the main body to oscillate the shell with respect to the main body. Elastically compressible members ( ) are provided between the shell member and the main body member. The oscillatory drivers are preferably set or tuned to operate at a resonant frequency of the shell member whereby shell member amplitudes larger than the oscillatory driver amplitudes may be induced. Embodiments of longitudinally oscillatory burrs ( ) and rotationally oscillatory burrs ( ) are disclosed.