Smoke filter

Details Smoke filter Smoke filter

1991-01-03

1992-04-28

Spitzer, Robert

Gas separation

Two or more separators

Three or more serially spaced

553854, 55486, 55497, 55502, 55521, 55DIG42, B01D 4612

Patent

active

051084740

ABSTRACT:
A smoke filter which is useful in containing smoke produced during electrosurgery or laser surgery procedures which has a prefilter layer to contain most of the smoke produced in these surgical procedures and to extend the useful life of the smoke filter, a microporous polymeric membrane layer which acts as a final filtering layer of the smoke filter and disposed between these two layers is a protective foam layer which protects the integrity of the microporous polymeric membrane from damage caused by the prefilter layer.

REFERENCES:
patent: 4155247 (1979-05-01), Kaczmarek et al.
patent: 4187390 (1980-02-01), Gore
patent: 4324574 (1982-04-01), Fagan
patent: 4382440 (1983-05-01), Kapp et al.
patent: 4477270 (1984-10-01), Tauch
patent: 4619672 (1986-10-01), Robertson
patent: 4702940 (1987-10-01), Nakayama et al.
patent: 4816328 (1989-03-01), Saville et al.
patent: 4877433 (1989-10-01), Oshitari
patent: 4957518 (1990-09-01), Brassell
patent: 4957522 (1990-09-01), Brassell

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