Dual mode laser smoke evacuation system with sequential filter m

Details Dual mode laser smoke evacuation system with sequential filter m Dual mode laser smoke evacuation system with sequential filter m

1992-11-10

1993-09-07

Nozick, Bernard

Gas separation

With nonliquid cleaning means for separating media

Solid agent cleaning member movingly contacts apparatus

55274, 55467, 55213, 417 42, 417 43, 96113, B01D 1900

Patent

active

052424740

ABSTRACT:
A surgical laser smoke evacuation system includes a sensor positioned at the surgical site to determine the need for evacuation. A vacuum pump draws smoke from the site through a system of conduits, including an in line filter. The filter tends to become clogged over time. A sensor determines changes in the pressure drop across the filter, and is connected to a control mechanism which adjusts the speed of the vacuum pump to maintain an approximately constant flow across the filter.

REFERENCES:
patent: 3518814 (1970-07-01), Magnard
patent: 3811250 (1974-05-01), Fowler
patent: 4257746 (1981-03-01), Wells
patent: 4642128 (1987-02-01), Solorzano
patent: 4786295 (1988-11-01), Newman et al.
patent: 4810269 (1989-03-01), Stackhouse
patent: 4963134 (1990-10-01), Backscheider
patent: 4986839 (1991-01-01), Wertz et al.
patent: 5047072 (1991-09-01), Wertz et al.

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