Lung ventilator device

Details Lung ventilator device Lung ventilator device

1990-03-20

1991-09-03

Lewis, Aaron J.

Surgery

Respiratory method or device

Means for supplying respiratory gas under positive pressure

12820423, 12820518, A61M 1600

Patent

active

050443623

ABSTRACT:
A novel ventilating apparatus for the delivery of air or a desired gas mixture to a patient by displacement of an electric motor actuated piston in a chamber to expel such gas while electronic control ensures that the force applied to the piston is of a pattern and magnitude. In one preferred embodiment, the ventilating apparatus provides a proportional assist to the breathing pattern of the patient.

REFERENCES:
patent: 1406141 (1922-02-01), Anston
patent: 4036221 (1977-07-01), Hillsman et al.
patent: 4121578 (1978-10-01), Torzala
patent: 4459982 (1984-07-01), Fry
patent: 4587967 (1986-05-01), Chu et al.
patent: 4617637 (1986-10-01), Chu et al.
patent: 4726366 (1988-02-01), Apple et al.

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