G - Physics – 01 – F
Patent
G - Physics
01
F
349/39
G01F 1/66 (2006.01) A61B 5/087 (2006.01)
Patent
CA 1190975
ABSTRACT OF THE DISCLOSURE A transducer assembly comprising an inner, primary, transducer having a pair of transducers fixed to a liner or cavity for providing the fluid compression sending and receiving signals for measuring the velocity and change of composition of fluid in the cavity which is being inspired and expired by a patient in a setting, such as in an intensive care unit of a hospital. The inner transducer is disposed in a heated housing to maintain the temperature of the inner transducer at a temperature above the satura- tion point of the fluid being measured and is further pro- vided with 1) an acoustical absorber to prevent sound energy from the connection tubes, which connect the trans- ducer assembly to endotracheal tubing, from adversely affecting fluid measurements and, 2) water absorbing material to prevent water, which might condense in the con- necting tubing, from entering the inner transducer and affecting the fluid measurements.
410518
Mount Bruce E.
Rader Con D.
Osler Hoskin & Harcourt Llp
Perkin-Elmer Corporation The
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