Patent ID: 7938792

Claim:
A method for detecting an access disconnection, the method comprising: inputting or accessing information about a patient for an extracorporeal blood therapy; inputting or accessing at least one value for an alert criterion for an access disconnection; beginning the extracorporeal blood therapy; reading a first of a plurality of properties concerning the therapy and blood of the patient, the plurality of properties selected from the group consisting of a distance between access needles for the extracorporeal therapy, a temperature of a portion of an extracorporeal blood therapy machine, a speed of a pump of the extracorporeal blood therapy machine, an administration of a bolus to the extracorporeal blood circuit, and a dialysate temperature; proceeding with the extracorporeal blood therapy; reading a second of the plurality of properties concerning the therapy and the blood of the patient; calculating a change in the at least one value for the alert criterion based on the reading of the second of the plurality of properties; and adjusting the at least one value for an alert for the access disconnect criterion.