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Special report: Occlusive cuff controllerA mechanical occlusive cuff controller suitable for blood flow experiments in space shuttle flights is described. The device requires 115 volt ac power and a pressurized gas source. Two occluding cuff pressures (30 and 50 mmHg) are selectable by a switch on the front panel. A screw driver adjustment allows accurate cuff pressurization levels for under or oversized limbs. Two pressurization cycles (20 second and 2 minutes) can be selected by a front panel switch. Adjustment of the timing cycles is also available through the front panel. A pushbutton hand switch allows remote start of the cuff inflation cycle. A stop/reset switch permits early termination of the cycle and disabling of the controller to prevent inadvertent reactivation. Pressure in the cuff is monitored by a differential aneroid barometer. In addition, an electrocardiogram trigger circuit permits the initiation of the pressurization cycle by an externally supplied ECG cycle.
Document ID
19750023671
Acquisition Source
Legacy CDMS
Document Type
Contractor Report (CR)
Authors
Baker, J. T. (Technology, Inc. Houston, TX, United States)
Date Acquired
September 3, 2013
Publication Date
October 1, 1975
Subject Category
Man/System Technology And Life Support
Report/Patent Number
NASA-CR-144430
Accession Number
75N31744
Funding Number(s)
CONTRACT_GRANT: NAS9-13291
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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