Medical information system
First Claim
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1. A medical information recording system for use with a patient having a medical state, said system receiving and storing data relating to the medical state of said patient, comprising:
- monitor means for producing a monitoring ECG signal indicative of the patient'"'"'s medical state;
analysis means for analyzing said ECG signal to determine if a defibrillation shock is indicated;
defribrillator means for applying a defibrillator shock to said patient;
sampling means for obtaining samples of said monitoring signal, said samples having respective characteristics;
memory means for storing said samples, said memory means having a capacity limited to storing a predetermined number of said samples; and
processing means connected to said sampling means and said memory means for storing said samples in said memory means, said processing means further including prioritizing means operative whenever the number of samples obtained by said sampling means exceeds the storage capacity of said memory means, said prioritizing means overwriting previously obtained samples stored in said memory means with subsequently obtained samples, depending upon the characteristics of said previously and subsequently obtained samples.
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Abstract
A medical information system. Data from electrodes are digitized and received by a microprocessor which causes them to be stored in a memory in accordance with a predetermined priority scheme. The data stored in the memory means can be read out to a monitor, a printer, or another computer for further processing.
82 Citations
16 Claims
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1. A medical information recording system for use with a patient having a medical state, said system receiving and storing data relating to the medical state of said patient, comprising:
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monitor means for producing a monitoring ECG signal indicative of the patient'"'"'s medical state; analysis means for analyzing said ECG signal to determine if a defibrillation shock is indicated;
defribrillator means for applying a defibrillator shock to said patient;sampling means for obtaining samples of said monitoring signal, said samples having respective characteristics; memory means for storing said samples, said memory means having a capacity limited to storing a predetermined number of said samples; and processing means connected to said sampling means and said memory means for storing said samples in said memory means, said processing means further including prioritizing means operative whenever the number of samples obtained by said sampling means exceeds the storage capacity of said memory means, said prioritizing means overwriting previously obtained samples stored in said memory means with subsequently obtained samples, depending upon the characteristics of said previously and subsequently obtained samples. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. An automatic or semiautomatic defibrillator, comprising:
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a pair of defibrillator electrodes; defibrillator means for applying a defibrillator shock to said electrodes in response to a trigger signal; monitor means for obtaining an ECG signal corresponding to the patient'"'"'s ECG; analysis means for analyzing the ECG of a patient to whom said electrodes are connected to determine if a defibrillation shock is indicated; initiation means for automatically generating or allowing manual generation of said trigger signal in the event that said analysis means determines that a defibrillation shock is indicated; sampling means for obtaining samples of said ECG signal, said samples having respective characteristics; memory means for storing said samples, said memory means having a capacity limited to storing a predetermined number of said samples; processing means connected to said sampling means and said memory means for storing said samples in said memory means, said processing means further including prioritizing means operative whenever the number of samples obtained by said sampling means exceeds the storage capacity of said memory means, said prioritizing means overwriting previously obtained samples stored in said memory means with subsequently obtained samples, depending upon the characteristics of said previously and subsequently obtained samples; and display means for providing a visually perceivable record of said ECG signals corresponding to said stored samples. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16)
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Specification