Pediatric tidal volume indicator and ventilator adaptation

Details Pediatric tidal volume indicator and ventilator adaptation Pediatric tidal volume indicator and ventilator adaptation

G - Physics

01

F

73/166

G01F 1/05 (2006.01)

Patent

CA 1138676

- 20 - PEDIATRIC TIDAL VOLUME INDICATOR AND VENTILATOR ADAPTATION ABSTRACT OF THE DISCLOSURE The tidal volume indicator consists of a spirometer in conjunction with a ventilator system adapted for use for small children and neonates. The ventilator system incor- porates valving to segregate the component parts into a machine system and a patient system and includes a unidirec- tional check valve between the exhalation valve manifold and the patient system. The tidal volume indicator includes a spirometer with read-out amplifier operatively connected therewith which enables the volume to be read accurately from between, for example, 0 and 150 ml. It consists of a rack and pinion assembly connected to the vertically moving shaft of the spirometer and a volume indicator needle in conjunction with the necessary scale. Also included is an adjustable warning operating device which will actuate an alarm or indicator if the preset volume deviates by a predetermined amount.

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