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Impedance Cardiographs

Definition : Cardiographs used for recording the variations of the thoracic electrical impedance caused by the activity of the heart muscle, usually detected at the body surface. A high-frequency (usually between 20 and 200 kHz), low intensity current is passed longitudinally across the body segment, and, according to Ohm's law, the product of this current multiplied by the body impedance generates a voltage between two sensing electrodes. The graphic representation of the variation of the impedance (sometimes and/or its first derivative also) with time is recorded in a diagram (impedance cardiogram). These cardiographs are used to study the action of the heart muscle, for diagnosis of specific cardiac abnormalities and to reveal trends or changes in heart function. Impedance cardiograph data may be also use to calculate the stroke volume and cardiac output.

Entry Terms : "Impedance Plethysmographs" , "Cardiodynameters" , "Cardiographs, Impedance" , "Plethysmographs, Impedance"

UMDC code : 12103

   

1-14 of 14 Match(es).

Bodystat Ltd

Bodystat Ltd

CNSystems Medizintechnik GmbH (Austria)

CNSystems Medizintechnik GmbH (Austria)

CNSystems Medizintechnik GmbH (Germany)

CNSystems Medizintechnik GmbH (Germany)

Korn Medizin-Technik

Korn Medizin-Technik

Medis Medizinische Messtechnik GmbH

Medis Medizinische Messtechnik GmbH

Noninvasive Medical Technologies Inc

Noninvasive Medical Technologies (NMT) is headquartered in Las Vegas, NV. NMT manufactures its patented noninvasive hemodynamic monitors for use across the care continuum. Our clinical and administrative staff collectively has many years of development work in the field of bioimpedance application.

Omni Medical Supply Inc

Physicians Resource Network Inc

Since 1983, PRN, Inc has progressed to become a national leader in the sale of New, Used, and Reconditioned medical equipment. PRN was born on the premise that reconditioned equipment can help our clients operate more profitably and our goal is to make the acquisition or selling of medical equipment a pleasant experience.

RJL Systems Inc

RJL Systems, a medical device company, is the industry originator, leading developer and manufacturer of Bioelectrical Impedance Analysis (BIA) devices for assessing body composition in humans and animals.

SonoSite France Sarl

SonoSite France Sarl

SonoSite GmbH

SonoSite GmbH

SonoSite Iberica SL

SonoSite Iberica SL

SonoSite Ltd

SonoSite Ltd

SonoSite Ltd Shanghai

SonoSite Ltd Shanghai

1-14 of 14 Match(es).

 

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