Accession Number : AD0429848


Title :   AN ELECTRICAL IMPEDANCE PLETHYSMOGRAPH,


Corporate Author : NAVAL MISSILE CENTER POINT MUGU CA


Personal Author(s) : Phipps, C G ; Lucchina, G G


Report Date : 31 Jan 1964


Pagination or Media Count : 15


Abstract : An electrical impedance plethysmograph has been developed at the Naval Missile Center. This plethysmograph is extremely flexible and sensitive in that it can be adapted to the acquisition of impedance changes relative to vascular volumes and to obtain data on heart rate and rhythm, and respiratory cycle. Results obtained included indications that a trace could be made which would be directly related to the blood flow through a section of a limb. With this instrumentation, traces representing the impedance cycle before, during, and after vascular systolic occlusion in a limb were obtained. An indirect index of systolic pressures could also be derived. (Author)


Descriptors :   *BIOLOGICAL RHYTHMS , RECORDING SYSTEMS , BIOLOGICAL RHYTHMS , HEART , RESPIRATION , BLOOD CIRCULATION , ELECTRICAL IMPEDANCE


Distribution Statement : APPROVED FOR PUBLIC RELEASE