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A ventilator exhalation valve for controlling the exhalation flow rate and pressure is disclosed. The valve includes a free-floating diaphragm which is biased against a fixed valve seat in an inhalati ... A ventilator exhalation valve for controlling the exhalation flow rate and pressure is disclosed. The valve includes a...
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www.freepatentsonline.com/5127400.html
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Patent Abstract: A ventilator exhalation valve for controlling the exhalation flow rate and pressure is disclosed. The valve includes a free-floating ...
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www.patentstorm.us/patents/5127400.html
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This invention relates to the field of medical ventilators, and more particularly, to a ventilator exhalation valve for regulating the expiration of ...
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www.patentstorm.us/patents/5127400/description.html
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At random intervals, exhalation of single breaths was delayed by briefly delaying the opening of exhalation valve (occlusion) (Tocc = 0.78 ± 0.34 seconds). Timing response was assessed from ... We conclude that acute compensatory responses to delays in opening of exhalation value are weak in ventilator-dependent patients.
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ajrccm.atsjournals.org/cgi/content/abstract/166/1/21
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BACKGROUND: Ventilator exhalation-valve performance during the expiratory phase has been studied in depth. An active exhalation valve uses servo-control technology that allows gas to be released from the exhalation valve during the inspiratory phase if the patient makes an expiratory effort.
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www.ncbi.nlm.nih.gov/pubmed/19025705
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Effect of a Nonrebreathing Exhalation Valve on Long-term Nasal Ventilation Using a Bilevel Device*. Nicholas S. Hill, MD, FCCP,; Carol Carlisle, and ...
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www.chestjournal.org/content/122/1/84.abstract
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The exhalation valve is a pneumatic component that can either be opened or closed. The tubing to the patient is Y’ed at the mouthpiece. On one branch of the Y is the PFCV, on the other is the exhalation valve. One branch is for inhalation, one for exhalation.
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www.nd.com/ventilator/exhalation.htm
www.nd.com/ventilator/exhalation.htm
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The method and system for controlling airway pressure in a ventilator during the inspiratory cycle involves controlling the flow of breathing gas through a flow supply valve venting the breathing gas at a desired rate of outflow through a relief valve to achieve the desired airway pressure. ... A relief valve,
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www.patentgenius.com/patent/5813399.html
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In another known ventilator exhalation valve, a free-floating diaphragm is positioned in a valve housing adjacent to a valve seat, to allow flow in a forward direction from the patient through the valve, and to prevent reverse flow from theatmosphere to the patient.
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www.patentgenius.com/patent/5771884.html
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