Ultrasonic transmission apparatus
US5269297A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Feb 27, 1992 |
| Grant date | Dec 14, 1993 |
| Priority date | — |
| Expiry date | Feb 27, 2012 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61B2017/320073
- WIPO fieldMedical technology
- WIPO sectorInstruments
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.