Patent
Devices for controlling gas flows
Georges Jacq,Damico Pierre +1 more
- 01 May 1980
85
TL;DR: In this article, a two-position solenoid valve controlled by a computer which receives data from pressure sensors is used as a demand breathing regulator, with a main valve for connecting a source of pressurized breathing gas and a breathing mask and a pilot diaphragm subjected to the pressure.
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Abstract: A regulating apparatus for supplying a receiving unit with gas from a pressurized source comprises a valve piloted by a two-position solenoid valve controlled by a computer which receives data from pressure sensors. When used as a demand breathing regulator, the apparatus has a main valve for connecting a source of pressurized breathing gas and a breathing mask and a pilot diaphragm subjected to the pressure in the mask. A sensor senses the movements of a diaphragm or the pressure in the mask. A solenoid valve controls the pressure in a pilot chamber of the main valve.
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Citations
Patent
Control of respiratory oxygen delivery
Matthew F. Schmidt,John S. Buan,Catherine A. Nordman +2 more
- 13 Nov 1998
TL;DR: In this paper, the methods and systems for supplying respiratory oxygen to users when the users are inhaling are disclosed, which rely on delivery devices that are selectively placed in fluid communication with either a respiration sensor or a source of oxygen.
460
Patent
Control of supplemental respiratory oxygen
Matthew F. Schmidt,John S. Buan,Catherine A. Nordman +2 more
- 20 Feb 2003
TL;DR: In this article, the authors present methods and systems for supplying supplemental oxygen to patients for use in sub-acute care which maintains healthy blood oxygen content in the patients by controlled dosing of oxygen with a measured response to the patient's actual oxygen content.
443
Patent
Portable drag compressor powered mechanical ventilator
Douglas F. Devries,Michael J. Cegielski,Warner V. Graves,Malcolm R. Williams,Michael B. Holmes +4 more
- 05 Jul 1995
TL;DR: In this article, a ventilator device and system comprising a rotating compressor, preferably a drag compressor, which, at the beginning of each inspiratory ventilation phase, is accelerated to a sufficient speed to deliver the desired inspiratory gas flow, and is subsequently stopped or decelerated to a basal flow level to permit the expiratory ventilation to occur.
324
Patent
Inspiration oxygen saver
James A. Snook,Thomas W. Nelson,Marilyn S. Wyble,Russell L. Trimble +3 more
- 16 Oct 1987
TL;DR: In this paper, a reliable, pulse-flow supplemental oxygen apparatus for alleviating respiratory ailments is provided which yields substantial savings in oxygen while giving the patient the physiological equivalent of a prescribed continuous stream of oxygen.
255
Patent
Pressure-controlled breathing aid
Guy Bourdon
- 11 Sep 1995
TL;DR: In this article, a control module compares the breathed volume at each cycle with a minimum volume order (VTImini) and varies the pressure order (AI) in the direction tending to maintain the breathing volume just over the minimum, but within an interval comprised between the two extreme values (AImini, AImaxi).
165
References
Patent
Respiratory biofeedback and performance evaluation system
Hillsman Deane
- 19 May 1975
TL;DR: In this article, a positive biofeedback training system which visually displays desired respiratory parameters along with performance is presented. But this system is particularly adapted for clinic use to establish an ideal breathing pattern under various circumstances and to establish a mechanical prescription for adaptation in home use by a respiratory victim utilizing simpler device means.
162
Patent
Portable air filtering and breathing assist device
Wolfgang Hauff,John W. Tidland +1 more
- 08 May 1978
TL;DR: A battery operated filter blower unit is arranged to be supported on the person and has connection by a flexible conduit to face pieces such as masks worn by the person, thus allowing a person wearing the filtering device to move about freely.
78
Patent
Physiological responsive control for an oxygen regulator
Terence August Torzala
- 04 Oct 1976
TL;DR: A control mechanism for regulating the proportion of a first and second fluid in a breathable fluid by measuring the physiological needs associated with the instantaneous operational parameter of an individual recipient was proposed in this article.
60
Patent
Flow control system for anesthesia apparatus
Robert J. Strowe
- 13 Mar 1978
TL;DR: In this article, an electronic analgesia/anesthesia apparatus is provided for the administration of a mixture of gases, which includes an electrical circuit operatively connected to each control for driving a display indicative of the flow rate of the gas and a percentage calculator connected to individual control for calculating the percentage of a particular gas with respect to the total gas flow.
52
Patent
Computer operated solenoid valve pressure control system
Jr Frederick Gordon Sholes,Gary Eugene Lovell +1 more
- 17 Dec 1973
TL;DR: In this paper, a computer operated solenoid valve pressure control system is described, which includes a computer, equipment which converts the computer instructions to electrical power, and a pressure measuring system which provides feedback to the computer.
36
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