Portable ventilator apparatus

Details Portable ventilator apparatus Portable ventilator apparatus

1988-05-23

1990-07-17

Burr, Edgar S.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820511, 12820524, 12820312, 12820316, A61M 1616, A61M 1610

Patent

active

049414690

ABSTRACT:
Ventilator apparatus comprises a cyclically-operated reciprocating pump, a delivery tube for delivering pressurized air to a patient, an exhalation valve assembly producing breathing cycles in which the delivery tube is first connected to the patient to effect inhalation and then is vented to the atmosphere to permit exhalation, and a control valve operated by the pump for controlling the breathing cycles of the exhalation valve. The pump has a low volume-displacement and operates at a relatively high cyclical speed, thereby enabling the apparatus to be selectively operated to perform the functions of any one of a large number of different types of ventilators.

REFERENCES:
patent: 2951450 (1960-09-01), Fisher
patent: 3658443 (1972-04-01), Fumigalli
patent: 3682166 (1972-08-01), Jacobs
patent: 3766914 (1973-10-01), Jacobs
patent: 3842828 (1974-10-01), Bird
patent: 4096858 (1978-06-01), Eyrick et al.
patent: 4471773 (1984-09-01), Bunnell et al.
patent: 4508117 (1985-04-01), Rodari
patent: 4527557 (1985-07-01), DeVries et al.
patent: 4611591 (1986-09-01), Inui et al.

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