Infusion apparatus and method

Details Infusion apparatus and method Infusion apparatus and method

1979-09-17

1981-03-31

Yasko, John D.

Surgery

Respiratory method or device

Respiratory gas supply means enters mouth or tracheotomy...

128214F, 128DIG12, A61M 3100

Patent

active

042587115

ABSTRACT:
An infusion apparatus and method employs an infusate reservoir connected by way of a first flow path having a first flow restrictor to a mixing chamber. The reservoir is also connected by a second flow path having a second flow restrictor to the same mixing chamber so that infusate may be conveyed to the chamber at different rates. A normally closed valve is provided in the second flow path so that infusate flows from the two paths supplement one another in the mixing chamber only when the valve is open. The reservoir and chamber volumes, infusate concentration and chamber outlet flow rate are selected to provide an integrated dosage profile suited to the patient.

REFERENCES:
patent: 3840009 (1974-10-01), Michaels et al.
patent: 3923060 (1975-12-01), Ellinwood, Jr.
patent: 4013074 (1977-03-01), Siposs
patent: 4056095 (1977-11-01), Rey et al.
patent: 4077405 (1978-03-01), Haerten et al.
patent: 4137913 (1979-02-01), Georgi
patent: 4146029 (1979-03-01), Ellinwood, Jr.
patent: 4193397 (1980-03-01), Tucker et al.

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