How It Works
During inspiration, a negative pressure (created
from expansion of the thorax) draws air into the
lungs. When inspiratory impedance is applied to
the breathing circuit, it enhances the negative
pressure (vacuum) in the chest, which pulls more
blood back to the heart, resulting in increased
preload and thus, enhanced cardiac output on
the subsequent cardiac contraction.
How It Works
VIDEO CLIP
(wmv file 12megs)
Technical
Specifications
Construction Description: Material
Exterior Housing: Polycarbonate
Interior Molded Components: Polycarbonate
Diaphragm: Silicone
Valve Gasket: Silicone
Valve Spring: Nickel coated stainless steel
Physical Specifications
Patient Port:
15 millimeters ID
22 millimeters OD
ISO Standard Supplemental Oxygen Port
Height: 7 centimeters (2.76 inches)
Diameter: 5.2 centimeters (2.0 inches)
Weight: 32 grams
Dead Space: 14 milliliters
Valve Cracking Pressure: -7 cmH2O
Exhalation Impedance:< -1.2 cmH2O
Operating Conditions: -18º to +45º C.
Storage Conditions: -40º to +60º C.
Shelf Life: Four years
Accessories:
Facemask: High quality facemask with three
exhalation ports
Mouthpiece: 22 mm ID
Nose Clip: Foam tip clip, EVA/POM
ResQStrap™: Adjustable head strap