Apparatus for monitoring and storing a variety of heart activity signals
First Claim
1. Apparatus for monitoring and storing electrical signals indicative of heart activity including a series of heartbeats, said apparatus comprising:
- (a) means for sampling a patient'"'"'s heart activity to provide a sequence of sampled heart signals at a rate sufficient to provide a plurality of sampled heart signals of one heartbeat and comparing one sampled heart signal with a subsequent heart signal of said one heartbeat to provide a heartbeat signal indicative of the occurrence of a valid peak of said one heartbeat, if said one sampled heart signal has a predetermined amplitude relationship to said subsequent sampled heart signal;
(b) memory means including a plurality of storage locations, said locations for storing corresponding heartbeat signals, and(c) means responsive to the provision of said heartbeat signal for evaluating a sequence of said heartbeat signals as stored in said plurality of locations to determine whether the patient'"'"'s activity is rhythmic, and if so for providing a manifestation of rhythmic heart activity and if not, for providing a manifestation of disrhythmic heart activity.
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Abstract
Heart monitoring and storing apparatus is disclosed for evaluating heart activity signals to determine if valid, for identifying a characteristic of the valid heart activity signal, and for storing the signal into a corresponding location of a memory depending upon the characteristic of the heart activity signal. Such apparatus comprises the memory including a first area and a second area, and a circuit for sampling the heart activity signals and for storing the heart signal samples into corresponding locations of such first area. There is further included an evaluation circuit for determining whether the sampled heart activity signals as stored within the first area are valid and particularly if they indicate the occurrence of a heartbeat. An addressing circuit is provided for determining the various characteristics of a valid heart signal and for selectively addressing a location within said second area to store the valid heart signal of the corresponding characteristic.
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Citations
17 Claims
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1. Apparatus for monitoring and storing electrical signals indicative of heart activity including a series of heartbeats, said apparatus comprising:
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(a) means for sampling a patient'"'"'s heart activity to provide a sequence of sampled heart signals at a rate sufficient to provide a plurality of sampled heart signals of one heartbeat and comparing one sampled heart signal with a subsequent heart signal of said one heartbeat to provide a heartbeat signal indicative of the occurrence of a valid peak of said one heartbeat, if said one sampled heart signal has a predetermined amplitude relationship to said subsequent sampled heart signal; (b) memory means including a plurality of storage locations, said locations for storing corresponding heartbeat signals, and (c) means responsive to the provision of said heartbeat signal for evaluating a sequence of said heartbeat signals as stored in said plurality of locations to determine whether the patient'"'"'s activity is rhythmic, and if so for providing a manifestation of rhythmic heart activity and if not, for providing a manifestation of disrhythmic heart activity. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17)
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Specification