1979-06-25
1981-08-11
Cohen, Lee S.
Surgery
Truss
Pad
7386177, 7386192, A61B 508
Patent
active
042828830
ABSTRACT:
A spirometer having a turbine transducer which includes a plurality of blades past which exhaled or inhaled air can be blown on sucked to cause a degree of rotation of the blades in proportion to the volume of air passing at a speed proportional to the rate of flow of the air. The turbine transducer produces a series of electrical pulses preferably by an electro-optical sensor at a rate proportional to the rate of rotation of the blade and these are fed to a microprocessor which stores and processes pulses and displays information relating to pulmonary functions calculated in the microprocessor. It is preferred that the turbine transducer is housed in a body that can be held in the hand of and raised to the mouth of a patient and is constructed in such a manner and of such materials as to make it readily dismountable for cleaning while responding quickly and accurately to changes in the rate of flow of exhaled or inhaled air.
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Schneiderreit, "The Turbulence Respirometer . . . ", Biomed. Technik, vol. 21, No. 8, pp. 228-230, Oct. 1976.
Cohen Lee S.
Lavine Irvin A.
Scitec Corporation Ltd.
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