25th dAy of AttAchMent

Spent the whole morning doing preventive maintenance at ward 3, 5, clinic C and G.

Ward 3

• Transport physiologic monitor (model: propaq)

we did the leakage current test which is a very important and also essential test so far. For monitor, we checked whether the SpO2 probe and the cuff is working or not.

Ward 5

• Defibrillator ( HP model)

It is my first time seeing this defib as usually i get the chance to deal with lifepak 12 or 20. There are lots of tests to be done for this device as we spent about 40 minutes trying to do the preventive maintenance with the service manual by our side.

The tests are:

• Energy delivery test ( measure the energy delivered by using defibrillator analyzer)
• control test (checking whether the buttons and adjust knob are working)
• testing of defib ( checking the duration to charge, amount of delivered energy in joules, impedence and peak current in amperes)
• calibration (using 300J to check whether the calibration is good or bad)
• ECG monitor test(using 1mV, 1-10Hz sine wave to check and "DIAGNOSTIC" and "MONITOR" result must be 1000 +/- 10% )

SOC C

• Video player/recorder
• Colour video monitor
• Camera control unit

The 3 devices are from sony. Only leakage current test has to be done.

SOC G

• Light source
• Colour video monitor
• video recorder/player
• colour video printer

Light source provides light for the endoscope which is plug into the device. Colour video printer is from stryker. Usually, the video recorder will record the patient's screening.

Finally, i had 8 size D 1.5 v energizer batteries and replaced them with the old ones. Surprisingly, it does not work as i am unable to turn the device on with skillreporter so most probably the connection of the cable is wrong. i Found out that the connection of the cable to the connector and socket has to be correct. I re-solder the wires in the connector to the correct locations and placed the wires correctly on the socket. It was able to work in the sense that it can be turn on by the skillreporter but not all the time and the LEDS in the microheartsim are flashing which indicates communication failure. trying my best to figure and solve the problems by tomorrow.

A device is sent from preventive maintenance for the vendor which is a lactate analyzer to measure the amount of lactate found in the blood for atheletes. Amount of lactate concentrated in a body depends greatly how active the person is. Lactate decreases for more active people. Buffer solution is used for this device. It consists of potassium chloride. It is used for flushing the blood away and diluting the blood sample. The most common problem arised for this device is the tubing will wear and tear.