Sensing valve motion limiting mechanism for respiratory equipment
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United States of America Patent
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Jul 30, 2002
Issued Date -
N/A
app pub date -
Nov 1, 1999
filing date -
Oct 29, 1999
priority date (Note) -
Expired
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Abstract
Respiratory equipment coupled in interruptible fluid communication between a recipient and a source of pressurized respiratory gas and adapted for controlling delivery of the pressurized gas to the recipient as the recipient inhales and exhales. The equipment includes a supply valve and a sensing valve cooperable to intermittently deliver pressurized gas to the recipient responsive to the recipient's inhalation and exhalation. A regulator mechanism is disposed between and in fluid communication with the pressurized gas source and the supply valve. The equipment may include a control device for controlling flow of pressurized gas from the pressurized gas source to the supply valve and from the pressurized gas source to the regulator mechanism. The control device also controls the pressure of pressurized gas discharged by the regulator mechanism. At least one adjustable device limits movement of a sensing valve diaphragm member responsive to the recipient's inhalation.
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