US Patent Number
4732159
Publication Date
3-22-1988
Abstract
A capsule pneumograph includes an electret microphone connected to a capsule chestpiece attached to a sleeping subject. The output of the microphone is connected to the input of a recorder or monitor in order to provide a system for the detection of respiratory movements in subjects during polysomnographic sleep monitoring. A tube connecting the capsule chestpiece to the microphone functions as a low pass filter to pass only low frequency signals in the range of respiratory movements from the chestpiece to the microphone.
Assignees
University of Kentucky Research Foundation, Lexington, Ky.
Application Number
858,694
Filing Date
05/02/1986
Recommended Citation
Kraman, Steve S., "Simple Capsule Pneumograph" (1988). Internal Medicine Faculty Patents. 6.
https://uknowledge.uky.edu/internalmedicine_patents/6
