05161525 is referenced by 250 patents and cites 7 patents.

The system and method for flow triggering pressure supported ventilation include a source of a predetermined, preinspiratory, constant flow of breathing gas to a patient, one or more flow sensors for measuring the rate of gas flow in a flow path communicating with the patient, means for determining when inhalation from the flow path has occurred, and means for generating pressure support in the delivered gas flow in response to inhalation by the patient, means to terminate pressure support when inspiratory phase concludes, and means to reestablish the predetermined, preinspiratory, continuous flow of breathing prior to the patient's next inspiratory effort. A plurality of individual gas sources preferably provide a controlled mixture of breathing gas. In combination with pressure support to the patient during the inspiration effort, the flow triggering strategy of the invention offers significant improvements in providing breath support to patients having weakened respiratory capabilities.

Title
System and method for flow triggering of pressure supported ventilation
Application Number
7/522383
Publication Number
5161525
Application Date
May 11, 1990
Publication Date
November 10, 1992
Inventor
Warren G Sanborn
Escondido
CA, US
Paul J Fennema
Fallbrook
CA, US
Glen N Gee
Encinitas
CA, US
Gardner J Kimm
Carlsbad
CA, US
Agent
Fulwider Patton Lee & Utecht
Assignee
Puritan Bennett Corporation
CA, US
IPC
F16K 31/26
F16K 31/02
A62B 7/04
A61M 16/00
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