Device and method for applying precise irrigation, aspiration, medication, ultrasonic power and dwell time to biotissue for surgery and treatment
US4180074A · kind A · utility
182Cited by
11References
15Claims
0Family size
Assignee
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Key dates
| Filing date | Mar 15, 1977 |
| Grant date | Dec 25, 1979 |
| Priority date | — |
| Expiry date | Mar 15, 1997 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA61M2205/8206
- WIPO fieldMedical technology
- WIPO sectorInstruments
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, apiration, medication and the application of the amplitude and dwell time of ultrasonic energy can be precisely controlled, externally, to the patient.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.