Title: Ventilator

Abstract: A ventilator which may be operated in either of two manually selected modes, including (1) a first mode in which ventilation of a patient is initiated by inhalation of the patient through a patient adapter and is terminated to allow the patient to exhale when the pressure at the patient adapter reaches a predetermined level; or (2) a second mode in which ventilation of the patient is initiated in the same manner as in the first mode, but in which apneustic hold means are activated when the pressure at the patient adapter reaches the predetermined level and maintains gas pressure and flow in the patient adapter for a short predetermined time thereafter before the patient is allowed to exhale.

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Inventors: Bird, Forrest M. (Palm Springs, CA, US)

Application Number: 730722
Filing Date: 1976-10-08
Publication_date: 1979-08-14
Assignee: Minnesota Mining and Manufacturing Company (St. Paul, MN)
Primary Class(es): 128/204.19 128/204.25, 128/205.24, 137/510
Other Classes:
US Patent Ref:

1875511	Sep, 1932	Shivers	251/65.
2996071	Aug, 1961	Takaoka	251/65.
3191596	Jun, 1965	Bird et al.	128/145.
3385295	May, 1968	Beasley	128/145.
3753436	Aug, 1973	Bird et al.	128/145.
3974828	Aug, 1976	Bird	128/145.
4060078	Nov, 1977	Bird	128/145.

Other Refs: 1001060

Jan, 1957	DE

Primary Examiner: Recla, Henry J.
Assistant Examiner:
Attorney: