MEDICAL CABLE INCLUDING AUTHENTICATION CIRCUIT

摘要

Medical cable authentication apparatuses and methods are disclosed. Some embodiments herein provide a medical cable assembly for use in a patient monitoring system including authentication circuit. The authentication circuit can provide a signal indicative of whether the medical cable assembly is compatible, or desirable for use with a particular patient monitor and/or sensor. The authentication circuit can include a substantially constant current source that drives a capacitor, wherein a voltage signal provided by a patient monitor drives the current source, and the voltage across the capacitor is used to generate an authentication output signal.

主权项

1. medical cable for transmitting data between a patient monitor and a sensor, the medical cable comprising:
a cable body; a first connector connected to the cable body and configured to be coupled to a patient monitor; a second connector connected to the cable body, the second connector configured to be coupled to a sensor and to receive a sensor signal from the sensor that comprises information related to the one or more physiological parameters; and an authentication circuit, configured to receive a test signal from the patient monitor and generate an output ramp signal responsive to the test signal that reaches a target voltage within an amount of time expected by the patient monitor, thereby enabling the monitor to authenticate the medical cable.