Electrode impedance monitoring method apparatus for electrocardi

Details Electrode impedance monitoring method apparatus for electrocardi Electrode impedance monitoring method apparatus for electrocardi

1979-06-29

1982-03-30

Kamm, William E.

Surgery

Truss

Pad

A61B 504

Patent

active

043219322

ABSTRACT:
A patient's own heart is used as a voltage source for measurement of EKG electrode impedance. The amplitude of an EKG signal obtained while the EKG electrodes are shorted together with an impedance is compared to the amplitude of an EKG signal obtained under identical conditions except that the impedance short is not present. The value of the inter-electrode impedance is then equal to one less than the ratio between the unshorted amplitude and the shorted amplitude times the value of the shorting impedance. In a preferred embodiment, the value of the shorting impedance is made equal to the maximum permitted inter-electrode impedance. Then, if the amplitude of the EKG signal taken from a patient decreases upon temporary insertion of the impedance short to a value less than half of the EKG amplitude obtained without the impedance short, the inter-electrode impedance is too high.

REFERENCES:
patent: 3976055 (1976-08-01), Monter et al.
patent: 4027663 (1977-06-01), Fischler et al.
"Medical Engineering", Ray, Charles D., Year Book Medical Publishers, Chicago, 1974, pp. 1011-1012.

Affiliated with

Also associated with

Rating

Electrode impedance monitoring method apparatus for electrocardi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Electrode impedance monitoring method apparatus for electrocardi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electrode impedance monitoring method apparatus for electrocardi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-378386