Medtronic 5388
Medtronic · Model 5388
Simply adjusting the top three dials provides effective pacing in most clinical situations. Changing the pacing rate automatically adjusts other dual-chamber temporary pacing parameters. Pediatric patients may need a pacing rate up to 200 ppm. A patient's high stimulation threshold may require a ventricular output of 25 mA. For managing atrial tachyarrhythmias, a rapid atrial pacing rate up to 800 ppm is possible. The patient cable system uses protected electrical connections to increase patient safety. The Model 5388 incorporates the quality and durability users expect from Medtronic temporary pacemakers.
Key tips
- ·Never skip the daily/shift ready-check - a defibrillator found dead during a code is a real, repeated root-cause finding.
- ·Pads and batteries have real expiration dates - check them on every PM, not just at annual service.
- ·Verify energy-delivery accuracy with a real defibrillator analyzer, not just a self-test pass.
Typical Failure Modes
Compiled for this model from its own documentation and established engineering knowledge for this equipment class - not from a verified service record. Confirm against the manufacturer's service manual.
Failure to capture
HighSymptoms: Pacing stimuli not followed by a paced beat, capture lost intermittently.
Root cause: Output (mA) set below threshold, a loose / oxidised connection at the terminal block or the bridging / patient cable, or a lead-contact issue at the patient.
Failure to sense / oversensing
HighSymptoms: Pacing spikes fall on intrinsic beats (undersensing) or pacing is inhibited inappropriately (oversensing).
Root cause: Sensitivity (mV) set wrong, EMI, or a cable / connection fault.
Low-battery / battery-depleted alarm
HighSymptoms: Low-battery indicator, or the device warns of imminent depletion.
Root cause: 9 V battery low - replace immediately; keep a spare with the device.
Rate / A-V interval limited at a block point
MediumSymptoms: A warning message when adjusting RATE or a rate-dependent parameter, the value will not go further.
Root cause: The device enforces minimum V-A intervals (70 ms in DOO, 180 ms in DVI) - the requested combination is not allowed.
Terminal block / connector wear
MediumSymptoms: Intermittent output or sensing when the cable is moved.
Root cause: Worn terminal block or a damaged patient / bridging cable.
Serviceable Parts & Consumables
Serviceable items for this model, compiled from its documentation and engineering knowledge for this equipment class. Service class and relative cost are estimates, not manufacturer figures; no part numbers are given. Confirm intervals and pricing against the manufacturer.
9 V battery
Replace on any low-battery indication; always keep a spare with the device.
Class ConsumableRel. cost $R&R Easy
Patient / bridging cable
Class Periodic replacementRel. cost $$R&R Easy
Terminal block
Class Major service partRel. cost $$R&R Fairly easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| 9 V battery Replace on any low-battery indication; always keep a spare with the device. | Consumable | $ | Easy |
| Patient / bridging cable | Periodic replacement | $$ | Easy |
| Terminal block | Major service part | $$ | Fairly easy |
Relative cost: $ lowest · $$$$ highest service-part cost for this equipment class. Not a price.
PM Checklist
Preventive-maintenance tasks typical of this equipment class. Perform to the manufacturer's procedure and your facility's policy - this is general reference, not a schedule for this specific unit.
- ·Daily/shift visual and self-test check (AAMI EQ56 daily-ready standard)
- ·Battery and pad expiration-date tracking
- ·Energy-delivery accuracy test against a defibrillator analyzer
- ·Paddle/cable continuity check
- ·Annual full PM
Troubleshooting Approach
A starting sequence for this model, compiled from its documentation and engineering knowledge for this equipment class. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Failure to capture
- Increase the output (mA) and confirm capture returns; find the threshold and set output with an adequate safety margin.
- Check every connection: the terminal block, the bridging / patient cable and the lead pins are clean, tight and correctly polarised.
- Substitute a known-good patient cable.
- Confirm the pacing lead position with the care team if the electrical path is intact.
- Replace the terminal block / cable if the fault tracks the connection.
Symptom: Sensing problem / low battery
- Adjust the sensitivity (mV): more sensitive (lower number) for undersensing, less sensitive for oversensing.
- Move EMI sources away from the device and cables.
- For a low-battery alarm, replace the 9 V battery immediately and keep a spare with the device.
- Confirm normal sensing and capture markers after any change.
- Escalate a device that fails its self-check to Medtronic / biomed.
Technical Specs
- Height
- 3.6 cm
- Length
- 8.1 cm
- Weight
- 510 g with battery
- Pacemaker Type
- External Invasive
- Width
- 21.1 cm
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Crash carts (every unit)
- Emergency Department
- ICU
- OR
- Code-blue response areas
Documents & Manuals
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