05429123 is referenced by 100 patents and cites 32 patents.

A process is provided for controlling a ventilation procedure wherein a heliox ventilation system passes a breathing medium through at least a portion of a patient's pulmonary pathways. In this process, desired ranges for certain process parameters associated with the heliox ventilation system are established. These desired ranges are input into a signal processor. Initial settings for the heliox ventilation system are then made such that the actual conditions which will initially occur during the heliox ventilation procedure fall within their respective desired ranges. Thereafter, the heliox ventilation procedure is commenced. During the heliox ventilation procedure, conditions which relate to the established ranges are continually monitored by appropriate sensors. The monitored information is also input into the signal processor. The signal processor is designed to compare the actually-occurring monitored conditions to their respective desired ranges and determine if there is a difference therebetween. If there is a difference, the signal processor generates signals which are designed to correct the discrepancy. These signals can be designed to trigger alarms which instruct an operator to make the appropriate adjustments and/or to activate a servo-controlled valving network. By practicing this invention, it is possible to maintain proper oxygenation levels in a patient ventilated with a heliox ventilation system while minimizing lung compliance and lung resistance levels.

Title
Process control and apparatus for ventilation procedures with helium and oxygen mixtures
Application Number
8/167680
Publication Number
5429123
Application Date
December 15, 1993
Publication Date
July 4, 1995
Inventor
Marla R Wolfson
Philadelphia
PA, US
Thomas H Shaffer
Lansdowne
PA, US
Agent
Seidel Gonda Lavorgna & Monaco
Assignee
Temple University Of The Commonwealth System of Higher Education
PA, US
IPC
G05B 1/01
F16K 31/02
A61M 16/00
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