Automatic aspiration apparatus
AssigneeCavitron Corporation
InventorsDavid G. Wuchinich, Alan Broadwin
Life of this patent
Estimating the term…
Abstract
Apparatus is disclosed for aspiration of the operative site during open site surgery having automatic controls for responsively venting the aspiration system to atmosphere under certain conditions and for overriding the venting as desired comprising a continuously operating pump for providing suction, an aspiration line connected to the pump, a venting valve and, an aspiration valve in the aspiration line, a vacuum pressure responsive switch connected between the aspiration valve and the pump and a control system embodying activation switches and logic for controlling the operation of the valves.
Claims6
Apparatus for controlling aspiration from an operative site during surgery, said apparatus comprising:
- vacuum source means for providing a vacuum that is available continously;
- means connected to said source means for aspirating the operative site that includes (1) a normally open aspiration valve between the operative site and said source means, (2) vacuum pressure sensing means between said aspiration valve and said source means for sensing pressure in said aspiration means, (3) a normally closed venting means between the operative site and said aspiration valve for venting said aspiration means to about ambiant pressure, and (4) logic means responsively coupled to said sensing means for automatically opening said venting means and closing said aspiration valve, and activation control means coupled to said automatic logic means for overriding the automatic opening of said venting means and closing of said aspiration valve.
Dependencies are inferred from the claim text.