Body volume measurement chamber

Details Body volume measurement chamber Body volume measurement chamber

1994-07-01

1995-09-19

Raevig, Robert

Measuring and testing

Volumetric content measuring

G01F 1700

Patent

active

054507502

ABSTRACT:
A chamber for determining the volume of a patient for tissue density calculations provides controlled and continuous volume changes in the chamber by means of increasing offset between connected tanks of water, one of which communicates to the chamber to withdraw air from the chamber as its water level falls. Continuous pressure and volume data is thereby obtained allowing rapid determination of the patient volume through an application of Boyle's law. The chamber includes a self-sealing design in which the reduced air pressure of the chamber holds its lid in place. The pressure difference is maintained by a patient's holding down of a handle closing a pressure release valve permitting rapid egress by the patient when the handle is raised.

REFERENCES:
patent: 4270381 (1981-06-01), Demaray
patent: 5105825 (1992-04-01), Dempster
patent: 5231873 (1993-08-01), Lindberg

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