Method and device for controlled irrigation and suctioning of a

Details Method and device for controlled irrigation and suctioning of a Method and device for controlled irrigation and suctioning of a

1994-12-12

1996-12-24

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

604 31, A61M 100

Patent

active

055869734

ABSTRACT:
The irrigation circuit of this apparatus comprises a second pressure sensor CP2 forming a flowmeter with a first CP1, as well as a pressure sensor CPA located downstream.
The apparatus also comprises a processing and control unit UCCG which establishes the calculated value of internal pressure within the cavity PI using the pressure variations furnished by pressure sensors CP1, CP2 during a procedure in relation to the values of the pressure differences during operation outside the cavity, which are stored for each resectoscope RT1. . . RTi . . . RTn during an initial calibration phase so that the absorption flow rate can be controlled.
This invention is of interest to manufacturers of surgical instruments.

REFERENCES:
patent: 4184510 (1980-01-01), Murry et al.
patent: 4261360 (1981-04-01), Perez
patent: 4795424 (1989-01-01), Burner
patent: 5141493 (1992-08-01), Jacobsen et al.
patent: 5178606 (1993-01-01), Ognier et al.

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