Surgery – Truss – Pad
Patent
1995-10-30
1997-10-28
Bahr, Jennifer
Surgery
Truss
Pad
A61B 508
Patent
active
056808712
ABSTRACT:
Whole body plethysmograph for medical lung examinations having a pressure gauge (8) that responds to the interior pressure of cubicle (1), a pneumo-tachometer (5) which is disposed in cubicle (1) and is provided with a mouthpiece (4), a signal transmitter for the temperature difference between the inspired and the expired air, an output device (28) and an evaluation unit (7) with signal inputs (10, 18, 20, 25), to which are connected signal lines (6) from pressure gauge (8), from pneumo-tachometer (5) and from the signal transmitter for the temperature difference, having a signal output (11 ) for the respiratory flow rate measured by pneumo-tachometer (5) and a signal output (27) for the interior pressure measured by pressure gauge (8), which is at least partially corrected for temperature-caused pressure fluctuations by evaluation unit (7), whereby the two signal outputs (11, 27) are connected to output device (28) via signal lines (6), whereby the signal transmitter for the temperature difference is an ultrasound source and an ultrasonic sensor, which is affixed to or in mouthpiece (4) of pneumo-tachometer (5).
REFERENCES:
patent: 3511237 (1970-05-01), Jaeger
patent: 3621833 (1971-11-01), Crane
patent: 4936308 (1990-06-01), Fukukita et al.
patent: 5513648 (1996-05-01), Jackson
Bahr Jennifer
Gilbert Samuel
Schindler Edwin D.
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