Before The Patient Session; Wireless Patient Interface Module (Pim) - Philips ST80i Instructions For Use Manual

The Patient Session

Before the Patient Session

The exercise stress test process requires some advance preparation before running the patient
session. Advance preparation includes the following:
Checking the Wireless Patient Interface Module (PIM)

Checking the equipment connection (treadmill/ergometer), if used

Setting up the Pharma test

Once advance preparation is complete, the patient session follows a series of typical steps -
from preparing the patient to the final review of the exam.

Wireless Patient Interface Module (PIM)

The wireless PIM is a small data acquisition device that samples patient ECG signals and
sends the processed signals to ST80i. The wireless PIM assembly contains the signal
acquisition electronics, patient isolation circuits, and system interface circuits. The patient lead
set connects to the patient electrodes on one end and plugs into the wireless PIM on the other.
Figure 3-3
The wireless PIM digitizes the ECG signal and down-samples the ECG data before
transmitting ECG data to ST80i. The wireless PIM uses high and low pass filters to produce
filtered ECG data within certain band.
The wireless PIM performs lead signal quality detection to determine if a lead is not connected
to patient or electrode/patient contact impedance is excessively high.
3-12 ST80i Stress Test System Instructions for Use
Wireless PIM