Disposable pneumotachograph flowmeter

Details Disposable pneumotachograph flowmeter Disposable pneumotachograph flowmeter

1993-05-17

1994-10-25

Burr, Edgar S.

Surgery

Truss

Pad

73272R, 7386152, A61B 508

Patent

active

053579720

ABSTRACT:
A disposable pneumotachograph flowmeter comprises first and second tubular mouthpiece members which, when juxtaposed relative to one another, sandwich a fabric screen made from a hydrophobic material therebetween. The screen may comprise a woven fabric formed from expanded PTFE fibers or, alternatively, may be a non-woven mat of polyester fibers. Because of the properties of the screen material, it does not become clogged and occluded with moisture particles during use.

REFERENCES:
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patent: 5058601 (1991-10-01), Riker
patent: 5060655 (1991-10-01), Rudolph
patent: 5111827 (1992-05-01), Rantala
patent: 5137026 (1992-08-01), Waterson et al.
"Flow Meter for Recording Respiratory Flow of Human Subjects", by John C. Lilly, Methods in Medical Research, vol. 2, 1950.

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