Spacelabs Healthcare Lifecard 12, Service Manual

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Lifecard CF Service Manual
3.10 Patient Cable
Lifecard CF patient cables use screened lead-wires with tinsel con-
ductors and an antimicrophonic barrier to provide strength,
ß exibility
and low noise. There is a choice of 7 patient cable units:
• 4 electrode cable with belt clip
• 4 electrode cable, short, no belt clip
• 3 electrode cable with belt clip
• 3 electrode cable, short, no belt clip
• 6 electrode cable with belt clip and renewable lead wires
(unscreened)
• 10 electrode cable for Varios Active Yoke, AHA code
• 10 electrode cable for Varios Active Yoke, IEC code
Two electrode cables for single channel ECG are no longer offered.
We recommend three electrode hook-up in long term applications.
Cables with 4 electrodes provide two channels of ECG. The popper
colour code, which is detailed on the cable, conforms to AHA (1985)
recommendations. The short cable without belt clip is designed to
maximise patient comfort when the recorder is worn under clothes.
The 3 electrode scheme and popper colour code, as detailed on the
cable label, is proprietary to Spacelabs Healthcare.
The 6 electrode cable provides three channels of ECG from 6 elec-
trodes. The individual lead wires are detachable and can be replaced
with any DIN42802 connector lead wire,
useful in situations requiring unusual hook-up or electrode termina-
tions. The yoke is colour coded to AHA (1985) recommendations.
The cable yoke/back unit forms a complete assembly and is not
serviceable. In the case of failure, the complete assembly must be
replaced.
In the case of the 6 electrode cable, the individual lead wires may be
replaced if broken.
The 10 electrode cable is replaceable as a complete assembly by
releasing the screw securing it to the Varios active yoke.
The Active Yoke itself it not serviceable and must be returned to Spa-
celabs Healthcare for repair.