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:
Dec. 14, 1993
Filed:
Feb. 27, 1992
Li Weng, Ramsey, NJ (US);
Robert M Scribner, Broomfield, CO (US);
Angiosonics Inc., Wayne, NJ (US);
Abstract
A horn connectable to an energy source to amplify ultrasound displacement is connected to a transmitter formed of material having relatively high mechanical Q for transmitting ultrasonic energy therethrough at a frequency f, the transmitter having a horn-shaped configuration of length that is a multiple of a half-wavelength .lambda./2, and preferably this horn-shaped configuration is comprised of multiple horn segments, each of a length substantially equal to a multiple of .lambda./2, where .lambda.=c/f (c is the speed of sound in the high Q material). The transmitter has a proximal end of cross-sectional diameter D.sub.1 connected to the horn and a distal end of cross-sectional diameter D.sub.2, where D.sub.1 >D.sub.2. Ultrasonic energy transmitted through the transmitter drives a tip which is coupled to the transmitter by means of a flexible connector.