Patent ID: 8632486

Claim:
An access disconnect system comprising: blood tubing including a blood filter and an arterial tubing side of the blood filter; a blood processing machine including a blood pump operable with the blood tubing; first and second conductive contacts located in the blood tubing on the arterial tubing side of the blood filter, the first conductive contact located upstream of the blood pump, and the second conductive contact located downstream of the blood pump, the first and second conductive contacts positioned and arranged to enable a conductive circuit to be formed with a vascular system of a patient and the blood processing machine; a source of electric current connected to at least one of the first and second conductive contacts; a sensor configured to sense an amount of electric current flowing through the conductive circuit when the source of electric current is applied; and a transmitter for sending a signal indicative of an amount of current sensed by the sensor flowing through the conductive circuit when the source of electric current is applied.