Patent ID: 6261221
Filing Date: 2001-07-17
Classification: A61N

Abstract:
A PEMF transducer for a tissue stimulator device, comprising:at least one transducer coil for generating a PEMF stimulation signal in response to bi-directional drive signals;a drive circuit for providing said drive signals, namely a first drive signal to said coil in a first direction and a second drive signal to said coil in a second direction, said first drive signal being at a supply voltage and said second drive signal being at an energy recovery voltage, said drive circuit having energy recovery means for recovering flyback energy from said coil and for providing said energy recovery voltage; anda control circuit for switching between said first drive signal and said second drive signal;wherein said drive circuit, said energy recovery circuit, and said control circuit are attached adjacent to said coil, such that the transducer is a single integrated unit.