Haemonetics TEG Analyzer
Haemonetics · Model TEG Analyzer
Hematology Analyzer The TEG system is comprised of an analyzer and analytic software which together provide a complete picture of the formation and dissolution of blood clots.
Key tips
- ·Run QC controls before trusting any repair - an analyzer that passes self-test can still report clinically wrong results.
- ·Rule out a reagent lot change before opening the instrument - it can look exactly like a hardware fault.
- ·Centrifuge rotors have a hard retirement age/cycle limit regardless of visible condition - don't eyeball it.
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.
Aperture / flow-cell blockage or partial obstruction
HighSymptoms: Flagged or implausible CBC counts, voteouts, clog alarms, poor precision.
Root cause: Debris or a clot partially blocking a counting aperture or the flow cell.
Sample probe / piercer / valve wear
MediumSymptoms: Short samples, aspiration errors, cap-piercing failures, carryover.
Root cause: Worn or bent sample probe / closed-vial piercer, or a worn shear / segment valve.
Reagent / lyse delivery fault
MediumSymptoms: WBC, HGB or diff results shifted, high background, reagent alarms.
Root cause: Reagent depleted or wrong lot, or a pinch-valve / tubing fault.
Optics / laser fault (diff)
MediumSymptoms: Diff scattergrams abnormal, missing populations, flow-cell or laser alarm.
Root cause: Contaminated or aged flow cell, or the laser / optics.
Vacuum / pressure out of range
MediumSymptoms: Multiple parameter errors, priming failures.
Root cause: Pump or regulator drift.
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.
Sample probe / closed-vial piercer
Class Periodic replacementRel. cost $$R&R Moderate
Shear / segment valve
Class Periodic replacementRel. cost $$$R&R Difficult
Pinch-valve / peristaltic tubing
Class Frequent wear itemRel. cost $R&R Moderate
Flow cell
Class Periodic replacementRel. cost $$$R&R Difficult
System reagents / controls
Class ConsumableRel. cost $$R&R Easy
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Sample probe / closed-vial piercer | Periodic replacement | $$ | Moderate |
| Shear / segment valve | Periodic replacement | $$$ | Difficult |
| Pinch-valve / peristaltic tubing | Frequent wear item | $ | Moderate |
| Flow cell | Periodic replacement | $$$ | Difficult |
| System reagents / controls | Consumable | $$ | 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 QC controls run and reviewed
- ·Calibration verification per assay
- ·Routine cleaning and decontamination
- ·Scheduled reagent-path and pump-tubing maintenance
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: Clog alarm or flagged counts
- Run the instrument's aperture / flow-cell clear and flush cycles.
- Run a background count and confirm it is within limits.
- Run controls at all levels.
- Clean or replace the aperture bath / flow cell if clogs recur.
- Confirm precision on a replicate sample before releasing results.
Symptom: Short samples or aspiration errors
- Inspect the sample probe / piercer for wear or a bend.
- Check the shear / segment valve and tubing for leaks or wear.
- Verify vacuum and pressure against the service spec.
- Replace the probe / piercer, valve or tubing as found.
- Re-run controls.
Typical Location
Where this class of equipment is typically deployed - general reference, not this unit's own placement record.
- Central / core laboratory
- Point-of-care testing stations
- Blood bank
- Microbiology lab
Documents & Manuals
Safety & Recalls
Synced live from the FDA openFDA API.
- RECALL
Due to a shift in the citrated blood reference range for a normal population, the ranges stated in the IFU are changing. If the clinician relies solely on affected results in comparison to the normal donor reference range, it could lead to misdiagnosis and incorrect treatment or failure to treat.
- RECALL
When the TEG 5000 Analyzer including TEG Analytical Software is used with PlateletMapping (ADP or AA) Assays and TEG Mangement Software, incorrect values of the PlateletMapping ADP or AA % Inhibition and % Aggretagion may be displayed on TEG Manager for the affected assays.
- RECALL
Software defect in TEG Manager impacts the displayed alert for out of range test results. Due to this defect, reference range values received from TEG 5000 and displayed on the TEG Manager test result screen are rounded to the nearest whole number and lead to TEG Manager displaying an out of range alert when the test result is actually in range, or vice versa.
- RECALL
Specific lots of Level II Control Kits produce high Maximum Amplitude (MA) results, which are outside of the manufacturer's expected Quality Control range for MA parameter.
- RECALL
Research Use Only (RUO) parameters were included in TEG 5000 User Manual.
Related calculators
From BioLab, for work done with this kind of equipment.
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