Patent ID: 7703414

Claim:
A system for respiratory pharmacology test comprising: a chamber device for housing an animal selected from monkeys, dogs, or pigs, for conducting respiratory pharmacology test under unanaesthetized, unrestrained state, said chamber device comprising: an animal cage securing a living space for said animal, said cage having at least front and top faces made of metal grids for allowing inside observation and ventilation, and a grid door in the front face for entrance and exit of said animal, and a transparent chamber, wherein said chamber comprises: a partition plate for partitioning interior of said chamber into a first compartment for accommodating said cage and a second compartment for compensating for an effect of atmospheric pressure variations on results of the respiratory test, a door for allowing said cage to be placed in and removed from said first compartment, a ventilation connection port for connecting ventilation means for ventilating said first compartment, a communication pipe having at least three openings, said communication pipe allowing introduction of ambient air into said first compartment and communication between said first and second compartments, wherein said ventilation connection port is arranged at a position in a side face of said chamber and said communication pipe is disposed at a position on a top face of said chamber so that, with said cage placed in said first compartment without an animal therein, air flow through said first compartment is maintained constantly and allowed to communicate through said cage placed in said first compartment; in which a measuring instrument for respiratory test is fixed at a desired position, and ventilation means is connected to said ventilation connection port, and a transducer for detecting respiratory-waveform signals installed outside said chamber, wherein said transducer measures inner pressure in the first and second compartments, and transmits data to said measuring instrument after compensating for an effect of atmospheric pressure variations in the first compartment on results of respiratory test with inner pressure variations in the second compartment.