Patent
Ultrasonic surgical apparatus
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TLDR
In this article, an electrical apparatus for driving an ultrasonic piezoelectric crystal transducer in a surgical handpiece for the fragmentation and aspiration of tissue was described.Abstract:
An electrical apparatus for driving an ultrasonic piezoelectric crystal transducer in a surgical handpiece for the fragmentation and aspiration of tissue, which apparatus includes an electronic control loop (12) in combination with a voltage source amplifier (2) having an output which is connected to the piezoelectric crystal transducer (3) with a tuning inductor (4) in parallel. A control system for monitoring the control loop (12) and a component for controlling tissue selectivity are also disclosed.read more
Citations
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References
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Patent
Method and apparatus for providing enhanced tissue fragmentation and/or hemostatis
TL;DR: In this paper, a vibratable tip for ultrasonically disintegrating tissue in a surgical procedure and for aspirating the disintegrated tissue and fluids away from the surgical site through an opening in the tip was presented.
Patent
Apparatus for providing enhanced tissue fragmentation and/or hemostasis
TL;DR: In this article, an improved device for delivering RF current to the operating tool of an ultrasonic surgical apparatus which comprises a switch module for selecting said RF current, an electrically conducting metal band (18) connected to the switch module and an electrical conductive O-ring (19) in electrical contact with the metal band and located around the acoustic connecting member was presented.
PatentDOI
Method and apparatus for ultrasonic surgical fragmentation and removal of tissue
TL;DR: In this paper, a method and apparatus for periodically interrupting ultrasonic power applied to a vibrating tip to control its amplitude between high and low or zero amplitudes with a selectible duty cycle and repetition rate provides enhanced fragmentation and improves surgical control.
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Endoscopic ultrasonic aspirators
TL;DR: In this article, an endoscopic ultrasonic transducer was used to extract compliant biological tissue from the intracellular fluids in the tissues to achieve maximum cavitation of the fluids.
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Tatsuya Kubota,Syuichi Takayama,Shinji Hatta,Masakazu Gotanda,Hitoshi Karasawa,Hiroshi Sasaki,Tadao Hagino,Hiroki Hibino +7 more
TL;DR: In this article, an ultrasonic vibration treatment device consisting of an ultra-vibrator and a power source controller for reducing the power supplied to the vibrator, or stopping the power supply to the vibration, in accordance with a detection signal output by the detecting element.