Inhalation device

Details Inhalation device Inhalation device

1976-02-11

1977-11-29

Michell, Robert W.

Surgery

Truss

Perineal

272 99R, A61M 1600

Patent

active

040600742

ABSTRACT:
An incentive inhalation device which induces respiratory exercise and which is inexpensive, safe and easy to handle and operate. The device includes a container having a plurality of flow measurement chambers which are vertical when the device is in its upright position. In each chamber is housed a flow rate indicator, such as a light-weight article and ball, that normally rests at the bottom thereof. The bottom of each chamber is open to surrounding atmosphere and the top of each chamber is open to a common passageway. In operation, the patient or user withdraws air from the common air passageway and chambers. When the patient achieves a precalibrated flow rate the indicators sequentially rise to the top of each chamber. To prevent disruption of air flow into the passageway and surprise or shock to the user, means are provided in the last chamber to prevent the indicator from closing the last chamber to the common air passageway.

REFERENCES:
patent: 393869 (1888-12-01), Warren
patent: 515637 (1894-02-01), Wilhide
patent: 793177 (1905-06-01), Cady
patent: 892432 (1908-07-01), Judson
patent: 1621354 (1927-03-01), Dawley
patent: 1926748 (1933-09-01), MacKenzie et al.
patent: 2100898 (1937-11-01), Bernett
patent: 3087278 (1963-04-01), Waggle, Jr.
patent: 3695608 (1972-10-01), Hanson
patent: 3754546 (1973-08-01), Cooper

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