Valued device for controlling vacuum in surgery
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United States of America Patent
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Jan 22, 1980
Issued Date -
N/A
app pub date -
Mar 17, 1978
filing date -
Mar 15, 1977
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
Apparatus and method for applying aspiration, irrigation, medication and ultrasonic power and dwell time to biotissue for surgery and treatment wherein the pressure for both aspirating and irrigating is precisely and accurately maintained by the use of a differential valve and a control reservoir which is generally much larger than the biotissue cavity to be operated on and wherein the pressures for irrigation, aspiration, medication and the application of the amplitude and dwell time of ultrasonic energy can be precisely controlled, externally, to the patient.
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