Patent ID: 11896794
Assignee: NORTHGATE TECHNOLOGIES, INC.
Field: Medical technology (Instruments)
Classification: CPC A  G | IPC A  G

Claim 13:
14. A medical device comprising:
an interface configured to connect the medical device with an interface of a medical device accessory for administration of a medical treatment using the medical device and the medical device accessory;
a plurality of electrical contacts proximate the interface on the medical device, the plurality of electrical contacts comprising: a) an electrical supply contact adapted to supply a voltage from a power source associated with the medical device to a lead electrical contact on the medical device accessory; and b) a reading electrical contact adapted to receive the voltage from an identifying electrical contact on the medical device accessory when the medical device accessory is connected to the medical device;
a controller configured to read a presence of the voltage at the reading electrical contact;
a severing element configured to sever a conductor on the medical device accessory providing an electrical connection between the lead electrical contact and the identifying electrical contact upon disconnection of the medical device accessory with the medical device; and,
wherein the controller identifies a prior use of the medical device accessory by reading an absence of the voltage at the reading electrical contact when the medical device accessory is connected to the medical device.