RF power controller for ultrasound therapy system
US9931523B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Mar 9, 2011 |
| Grant date | Apr 3, 2018 |
| Priority date | — |
| Expiry date | May 11, 2035 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61N2007/0095
- WIPO fieldMedical technology
- WIPO sectorInstruments
Abstract
An apparatus for driving and controlling ultrasonic elements includes a computer-based host unit that determines driving characteristics with which to drive the ultrasonic elements; a microprocessor-based controller that receives an output from the host and provides signals representing a frequency and/or an amplitude characteristic; a frequency control circuit receiving the frequency characteristic signal; an amplitude control circuit receiving the amplitude characteristic signal; an RF amplifier acting on an output from the frequency and/or the amplitude control circuits to provide an amplified output signal corresponding to the frequency and/or amplitude characteristic; a coupling circuit that couples the amplified output signal to the ultrasonic elements and provides a forward output signal to a first RF detector circuit and a reverse output signal to a second RF detector circuit; and an analog-to-digital converter that receives an output of the RF detector circuits and provides a corresponding converted output to the controller.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.