Pulmonary function test calibration system and method

Details Pulmonary function test calibration system and method Pulmonary function test calibration system and method

2006-10-03

2006-10-03

Williams, Hezron (Department: 2856)

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

C073S001230

Reexamination Certificate

active

07114367

ABSTRACT:
A system for calibrating pulmonary function test equipment having syringe means, including a syringe having a cylindrically shaped sidewall, a proximal end with an centrally located orifice, a distal end with an output port, an interior cavity, and a plunger with a shaft slidably mounted through the orifice, a piston-type head mounted on one end of the shaft, and a handle mounted on an opposing end of the shaft; an FRC port; a rigid FRC bag connected in flow communication with the FRC port; control means having a plurality of stop mechanisms, including a first stop mechanism, a second stop mechanism structured to enable selective connection of the interior cavity in flow communication with the FRC port, and a third stop mechanism, and connection means structured to connect the syringe means to existing pulmonary function test equipment. A method of utilizing the system is also disclosed.

REFERENCES:
patent: 3391569 (1968-07-01), Richard et al.
patent: 4203316 (1980-05-01), Jones
patent: 4324127 (1982-04-01), Gazzara et al.
patent: 5076093 (1991-12-01), Jones et al.
patent: 5827941 (1998-10-01), Good et al.

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