Natus Dantec Series
Natus · Model Dantec Series
[b]Dantec Keypoint®[/b] The Dantec Keypoint® electromyography (EMG) / evoked potentials (EP) systems are recognized worldwide for their superior amplifiers, stimulators, and outstanding signal quality. The Keypoint is the instrument of choice for advanced neurodiagnostic applications such as Single Fiber EMG, Quantitative EMG, visual and auditory evoked potentials, as well as routine Nerve Conduction studies. The new Keypoint provides ergonomic improvements as well, including a 22 inch articulating monitor, a flexible arm, and a portable control panel. The Keypoint system is also available with all desired applications in a portable laptop configuration. [b]Dantec Clavis™[/b] The Dantec Clavis™ hand-held EMG/STIM device was developed to provide muscle and nerve localization information to assist with botulinum toxin injections. It is perfectly matched for use with Bo-ject® hypodermic needle electrodes.
Key tips
- ·Electrode impedance drives data quality more than almost any other single factor - check it before assuming an amplifier fault.
- ·Pre-case verification of intraoperative monitoring equipment isn't optional - a mid-case failure has direct surgical-decision consequences.
Typical Failure Modes
Failure patterns typical of this equipment class - general BMET reference, not verified against this exact unit's own service history unless flagged. Severity is a category-level estimate.
Electrode impedance high
MediumSymptoms: Noisy / flat channels, impedance alarm.
Root cause: Dry gel, poor contact.
Amplifier channel fault
MediumSymptoms: Dead channel, artifact.
Root cause: Front-end amplifier failure.
Stimulator output fault
MediumSymptoms: No stimulus delivered.
Root cause: Stimulator circuit wear.
Grounding / isolation issue
LowSymptoms: 50/60 Hz interference.
Root cause: Shield/ground break.
Serviceable Parts & Consumables
The parts a BMET typically services on this class of equipment. Service class and relative cost are general engineering estimates for the category, not figures from this unit's documentation. Part numbers appear only when pulled from this unit's own service manual. Always confirm intervals and pricing against the manufacturer.
Patient electrode gel
Consumable.
Class ConsumableRel. cost $R&R Easy
Amplifier channel module
Class Periodic replacementRel. cost $$$R&R Difficult
Stimulator cable
Class Periodic replacementRel. cost $$R&R Fairly easy
EEG electrode cap / cup
Frequent R&R.
Class Periodic replacementRel. cost $$R&R Easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Patient electrode gel Consumable. | Consumable | $ | Easy |
| Amplifier channel module | Periodic replacement | $$$ | Difficult |
| Stimulator cable | Periodic replacement | $$ | Fairly easy |
| EEG electrode cap / cup Frequent R&R. | Periodic replacement | $$ | 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.
- ·Electrode / lead impedance check
- ·Amplifier calibration
- ·Annual electrical safety test
Troubleshooting Approach
A structured starting point derived from the failure modes above. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Electrode impedance high
- Confirm the presentation - typically noisy / flat channels, impedance alarm - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: dry gel, poor contact.
- Isolate the affected subsystem using the manufacturer's functional check or self-test, where one is provided.
- If the fault is confirmed and not a field adjustment, service or replace the eEG electrode cap / cup per the manufacturer's service documentation.
- Return the device to service only after the manufacturer's functional and applicable electrical-safety checks pass.
- Record the findings, any parts used, and the verification results in the maintenance history.
Symptom: Amplifier channel fault
- Confirm the presentation - typically dead channel, artifact - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: front-end amplifier failure.
- Isolate the affected subsystem using the manufacturer's functional check or self-test, where one is provided.
- If the fault is confirmed and not a field adjustment, service or replace the patient electrode gel per the manufacturer's service documentation.
- Return the device to service only after the manufacturer's functional and applicable electrical-safety checks pass.
- Record the findings, any parts used, and the verification results in the maintenance history.
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Neurology / EEG lab
- ICU (continuous EEG monitoring)
- Operating Room (intraoperative monitoring)
Documents & Manuals
No documents available for this device yet.
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