Opioid overdose monitoring

A system to monitor for indications of opioid overdose and to deliver therapeutic drugs, the system comprising:

• a sensor wearable by a user configured to obtain data indicative of at least one physiological parameter of the user;
• a signal processor configured to process the data to provide the at least one physiological parameter;
• a drug delivery apparatus wearable by the user and configured to deliver one or more doses of a therapeutic drug, the drug delivery apparatus comprising a delivery device that includes a dose of a therapeutic drug stored in a reservoir, a drug delivery channel, a dispensing device to dispense the therapeutic drug from the reservoir through the drug delivery channel, and activation circuitry to activate the dispensing device:
• a medical monitoring hub configured to monitor the at least one physiological parameter, the medical monitoring hub comprising memory storing instructions and one or more computer processors configured to execute the instructions to at least:
• compare the at least one physiological parameter to a threshold that is indicative of opioid overdose;
• determine that an overdose event is occurring or likely to occur based on the comparison;
• and
• send at least one activation signal to the drug delivery apparatus to dispense
• at least one dose of the therapeutic drug based on the determination;
• and
• a smart device in communication with the signal processor to receive the at least one physiological parameter and in communication with the medical monitoring hub, wherein the smart device comprises memory storing instructions, and one or more microprocessors configured to execute the instructions to at least:
• compare the at least one physiological parameter to the threshold that is indicative of opioid overdose;
• determine that the overdose event is occurring or likely to occur based on the comparison;
• determine that the medical monitoring hub failed to send the at least one activation signal;
• and
• send the at least one activation signal to the drug delivery apparatus to dispense at least one dose of the therapeutic drug in response to the determination that that the medical monitoring hub failed to send the at least one activation signal.