CPC A61B 5/303 (2021.01) [A61B 5/301 (2021.01); A61B 5/304 (2021.01); A61B 5/308 (2021.01); A61B 5/333 (2021.01); G11C 16/26 (2013.01); G11C 16/0433 (2013.01)] | 25 Claims |
1. An electrocardiogram (ECG) extension cable, comprising:
a first connector configured to be electrically coupled to a physiological monitoring device;
a second connector configured to be electrically coupled to an ECG lead set comprising a processor and a plurality of ECG leads;
an input/output (I/O) wire configured to transmit ECG lead set data between the physiological monitoring device and the processor, wherein the ECG lead set data comprises at least one selected from the group of a number of leads in the plurality of ECG leads, ECG lead set authentication information, and a number of uses of the ECG lead set;
a ground wire that establishes a ground path between the first connector and the second connector;
a series protection element coupled in series along the ground wire; and
a switching element coupled to the ground wire in parallel to the series protection element, thereby providing a bypass path, the bypass path providing a second ground path between the first connector and the second connector, the switching element being adapted to detect an initial electrical I/O signal transmitted on the I/O wire;
wherein the switching element is adapted to close the bypass path when the initial electrical I/O signal is detected, maintain the bypass path in a closed position for a predetermined period of time, and open the bypass path at the end of the predetermined period of time.
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