CARDIAC/NEURO INSTRUMENTATION LAB

PHYSIO-CONTROL LP 6 DEFIBRILLATOR LAB 6

BMET 221

PHYSIO CONTROL LP 6 DEFIBRILLATOR NAME: ______

Equipment needed:

Dynatech Nevada Safety Analyzer

Bio-Tech QED-6 Defibrillator Analyzer

Oscilloscope, Function Generator, DMM

Lab Procedure:

1. _____ Locate equipment needed.

1a. ____ Read the specification data for the lifepak 6 section 1 pages 1-8 operators manual.

1b. ____ Read the operation section of the lifepak 6 section 2, pages 1-21 operators manual.

2. _____ In the bench area, connect each device to power and perform an electrical safety test.

2a. GROUND WIRE RESISTANCE (500Mohms limit) ______

2b. CHASSIS LEAKAGE (300mA LIMIT ) ______

2c. PATIENT LEAD (10mA LIMIT ) ______

3. ____ Read section 5 of the lifepak 6 service manual (disassembly)

4. ____ Read section 2 of the DEFIBRILLATOR ANALYZER MANUAL.

5, ____ Perform required adjustments as listed in the service manual, 4.1 and perform the following calibrations.

5a. ____ Read 4.1 – 4.10

5b. ____ Check heart rate accuracy.

30 BPM ______

60 BPM ______

120 BPM ______

240 BPM ______

5c. ____ 4-13 Preamplifier test

5d. ____ 4-15 Rate meter and rate alarm calibration.

5e. ____ 4-16 Frequency response test.

5f. ____ DC defibrillator 4.43-4.50

Energy select test (list energy levels) 4.45

5 ______

10 ______

20 ______

30 ______

50 ______

100 ______

200 ______

300 ______

400 ______

DIRECTED QUESTIONS ON CONTENT:

Using the operators/service manual, answer or respond to the following questions.

1.  What type of output waveform does the lifepak 6 produce? ______

2.  What does R6 adjust on the main pc board? ______

3.  What speed does the recorder operate at? ______

4.  What type of battery does the defibrillator module have? V ______AH______

5.  What is the part number of R13 on the preamplifier assembly? ______

6.  What are the three possible causes for interference on the CRT trace when using patient cable as ECG pickup? ______

______.

7.  How often is the heart rate updated? ______

8.  What type of isolation is used to shield the patient and ECG signal from equipment power? ______

9.  How long does it take to fully charge the battery? ______

10.  what is the charge time when the lifepak 6 is set at 400 joules? ______

11.  The three digit heart rate monitor provides a continuous display of beats per minute from ______to ______BPM.

12.  What resistance value is R68 on the Rate PCB assembly? ______

13.  What type of electronic network does this defibrillator use to acquire the ECG signals? ______

14.  What type of electronic configuration is U7 on the rate board schematic? ______

DEMONSTATION OF MEDICAL EQUIPMENT:

1.  Demonstrate the ability to check the outputs for accuracy.

2.  Explain the principle of the sync button to the instructor

3.  Demonstrate the ability to check the battery voltage as good or low.

4.  Demonstrate the ability to change the power on lamp

5.  Relay k1 fails. What would be the probable first indication of the problem?

6.  Referring to relay k1, what is the reason for cr10 in the circuit?