Heart beat cumulator

Details Heart beat cumulator Heart beat cumulator

1978-10-30

1980-09-23

Michell, Robert W.

Surgery

Truss

Pad

A61B 504

Patent

active

042236835

ABSTRACT:
A heart beat cumulator records the number of heart beats occurring in each of a succession of ten minute intervals. An electrical signal of heart activity obtained from electrodes on the subject is amplified and applied to the input of a filter having a pass band of about 15Hz to 25Hz. The output of the filter is fed to a peak follower that provides a reference signal to a comparator which is actuated when the amplitude of the output of the filter exceeds the amplitude of the reference signal. Upon actuation of the comparator, the comparator emits a heart beat signal and triggers a monostable multivibrator that blocks the input to the comparator for about one third of a second. The heart beat signal is fed to a data counter. After each ten minute interval, measured by an internal electronic clock, the count in the data counter is written into a memory and the memory is then advanced by an address counter to a new address to condition the memory to record the count for the next ten minute interval at the new address.

REFERENCES:
patent: 3590811 (1971-07-01), Harris
patent: 3820025 (1974-06-01), Lahr et al.
patent: 3853119 (1974-12-01), Peterson et al.
patent: 3995624 (1976-12-01), Maas
patent: 4034745 (1977-07-01), Bloom
patent: 4073011 (1978-02-01), Cherry et al.

Affiliated with

Also associated with

Rating

Heart beat cumulator does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Heart beat cumulator, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heart beat cumulator will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-640376