Patent ID: 11877760
Assignee: C. R. BARD, INC.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A

Claim 6:
7. A method for operating an ultrasonic treatment device in an ultrasonic system, the ultrasonic treatment device having an ultrasonic transducer drivably coupled to an ultrasonic vibration transmission member of an ultrasonic catheter, comprising:
generating an ultrasound electrical signal using an ultrasound signal generator;
supplying the ultrasound electrical signal to the ultrasonic transducer to generate ultrasonic vibratory motion of the ultrasonic vibration transmission member;
monitoring an electrical characteristic associated with the ultrasonic transducer, the electrical characteristic being one of a total voltage across the ultrasonic transducer, a total current to the ultrasonic transducer, an induced current of the ultrasonic transducer, or a Power Factor between the total voltage and the total current;
processing the monitored electrical characteristic to determine at least one of a type of material encountered by a distal end of the ultrasonic vibration transmission member and a type of vascular pathway that the ultrasonic catheter is traversing; and
controlling at least one of a modulation frequency and a waveform of the ultrasound electrical signal based on the determined at least one of the type material encountered by the distal end of the ultrasonic vibration transmission member and the type of vascular pathway that the ultrasonic catheter is traversing.