Spirometer mouthpiece

Details Spirometer mouthpiece Spirometer mouthpiece

1992-08-14

1994-11-01

Cohen, Lee S.

Surgery

Truss

Pad

A61B 508

Patent

active

053600096

ABSTRACT:
A disposable spirometer mouthpiece comprises a resilient tubular member, having inner and outer surfaces and a defined wall thickness, the wall of the tubular member having first and second longitudinal zones of reduced thickness and thus reduced strength which allows the spirometer mouthpiece to be collapsed into a flat state for packaging and storage. Preferably, the tubular member is resilient, such that when released from a package, the resilience of the tubular member allows it to resume an essentially cylindrical shape for testing. After testing, the mouthpiece is disposed of and because of reduced zones of thickness, the mouthpiece is easily collapsed to its flat state by the weight of other waste to minimize disposal space.

REFERENCES:
patent: 3721269 (1973-03-01), Choate et al.
patent: 4508116 (1985-04-01), Duncan et al.
patent: 4694827 (1987-09-01), Weiner et al.
patent: 4946430 (1990-08-01), Kohmann
patent: 5080529 (1992-01-01), Watanbe et al.
patent: 5163424 (1992-11-01), Kohnke
patent: 5196024 (1993-03-01), Barath

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