Tosoh Bioscience AIA-1800
Tosoh Bioscience · Model AIA-1800
Throughout of 180 results per hour. User friendly Windows-based software. AIA-Pack reagent loading of 620 test cups. Sample capacity of 170 samples on standard module with continuous access. STAT positions for urgent samples. Reflex testing. Clot and level sensing. Disposable pipette tips. This eliminates sample carryover. Automated dilution and pre-treatment of samples. Rapid, automated daily maintenance, which reduces hands on time. Full Quality control programme using Westgard Rules and Levey Jennings plot with statistics. Analyte consumption check.
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
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.
Sample probe / pipette clog
MediumSymptoms: Aspiration error, short sample, carryover.
Root cause: Clot/crystal obstruction.
Centrifuge imbalance / bearing
HighSymptoms: Vibration, loud noise, stop error.
Root cause: Worn bearing or unbalanced rotor.
Reagent / wash flow fault
MediumSymptoms: Clogs, high blank, QC fail.
Root cause: Pump tube wear, air in line.
Temperature control fault
MediumSymptoms: Incubator out of range.
Root cause: Failed heater/fan or sensor.
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.
Peristaltic pump tubing
Consumable, replace proactively.
Class Frequent wear itemRel. cost $R&R Easy
Xenon / LED light source
Class Periodic replacementRel. cost $$$R&R Moderate
Centrifuge rotor & bearings
Class Major service partRel. cost $$$R&R Difficult
Incubator heater / fan
Class Periodic replacementRel. cost $$R&R Moderate
| Part | Service class | Relative cost | R&R difficulty |
|---|---|---|---|
| Peristaltic pump tubing Consumable, replace proactively. | Frequent wear item | $ | Easy |
| Xenon / LED light source | Periodic replacement | $$$ | Moderate |
| Centrifuge rotor & bearings | Major service part | $$$ | Difficult |
| Incubator heater / fan | Periodic replacement | $$ | Moderate |
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 structured starting point derived from the failure modes above. Follow the manufacturer's service documentation for the actual procedure.
Symptom: Sample probe / pipette clog
- Confirm the presentation - typically aspiration error, short sample, carryover - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: clot/crystal obstruction.
- 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 sample aspiration probe 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: Reagent / wash flow fault
- Confirm the presentation - typically clogs, high blank, QC fail - and note the exact alarm or message and the conditions when it occurs.
- Check the most likely cause first: pump tube wear, air in line.
- 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 peristaltic pump tubing 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.
Technical Specs
- Height
- 125 cm
- Length
- 93 cm
- Weight
- 300 kg
- Width
- 165 cm
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
No documents available for this device yet.
Safety & Recalls
Synced live from the FDA openFDA API.
- RECALL
The Test cup lot F level 1 low-quality control results values for the device were lower than expected on the Automated Immunoassay Analyzer (AIA) which could cause falsely elevated or falsely low total testosterone results. Such erroneous test results may lead to additional testing/diagnostic interventions and in limited cases, may lead to a delay in diagnosis and/or initiation of unnecessary or incorrect clinical treatment measures.
- RECALL
Decreased stability for five (5) lots of Calibrator Sets and Calibration Verification Test Sets, resulting in a decrease measured concentration of HCG up to 20%.
- RECALL
The Substrate Monitoring System in the AIA-900 Analyzer did not detect an empty substrate bottle. The issue may lead to erroneous immunoassay test results.
- RECALL
A display screen software issue on the analyzer causes the display to freeze when display screen is touched at the same time as a command from the instrument firmware, causing the instrument to stop. As a result, the run is aborted and the results are not retrievable.
- RECALL
The AIA-2000 bar code scanners depend on the quiet zone to help identify the bar code. The lack of an adequate quiet zone can cause the bar code scanner to confuse the bar codes with text or graphics resulting in the scanner ignoring a valid symbol. This results in an error in reading the barcode: Error Code 2220 Unable to read barcode on reagent bottle. In some cases, the quiet zone is too short and an error in barcode reading occurs. The problem is intermittent and not all vials (6 vials are available per set) have been reported to fail. The only risk to patients or users is a delay in results. The company recommends (optional) that customers pre-screen the vials to identify affected products. Customers can contact the company for reimbursement of any affected products. The company has implemented barcode checks as a temporary solution and will replace the barcode printer on the produc
- RECALL
Potential for fluorescein interference to cause inaccurately elevated results for certain Tosoh AIA assays
- RECALL
Tosoh Bioscience has become aware of a potential issue with the pickup arm and pickup arm motor on the AIA-900 Analyzer. If the pickup arm or pickup arm motor malfunctions, the analyzer will cease to function and result in an inability to test patient samples. This may cause a delay in testing and reporting patient results. Tosoh has received fifty-one (51) complaints related to this issue with no serious injuries reported.
- RECALL
Tosoh Bioscience has become aware of a potential issue with the axis base of the turntable rotation drive motor on the AIA-900 Analyzer. If the tension of the timing belt between the turntable rotation pulley and drive motor is not adjusted correctly, it is possible to increase the lateral load on the motor axis resulting in the inclination and damage of the motor axis. Since January 12, 2017, Tosoh has been inspecting the tension of the timing belt during scheduled preventative maintenance visit and correcting the analyzers where this issue has been observed. If the drive motor fails, the AIA-900 analyzer will cease to function and will be unavailable for use. If this issue occurs, there may be a delay in testing and reporting patient test results. Tosoh has received five (5) complaints related to this issue with no serious injuries reported.
- RECALL
There is a possibility that the liquid suction pump on some AIA-2000 analyzers may not perform as intended and cause an insufficient volume of wash solution to be removed during the washing step. Incomplete washing of the sample may result in falsely elevated test results for the sandwich assays and falsely decreased test results for the competitive binding assays. Insufficient washing is detectable through review of the calibration data and QC trending. For example, if incomplete washing occurs, the reported values for the zero- calibration rate will be above the acceptance range. The calibration value may shift and the instrument will not calibrate successfully. If this issue occurs, there may be a delay in testing and reporting patient test results. There have been no user or patient injuries reported related to this issue.
- RECALL
A software issue may cause the liquid volume detection entries for 2nd and 3rd reagent bottles to be overwritten with the data from the 1st reagent bottle. Tosoh has released software version 2.51 (or later) to fix the problem. This failure is mitigated by the hardware design. The consequence would be a slight delay in testing patient sample or reporting patient result.
- RECALL
The firm has implemented new product labeling changes for the Tosoh AIA-360 Analyzer. These labeling changes affect the Tosoh Quick Reference Guide, Training Manual and Training DVD previously provided by Tosoh Bioscience. These changes are being made to align the Tosoh Quick Reference Guide and associated training materials to the Operators Manual and provide clarification to the requirement that the maintenance of the B/F probe is to be performed by Tosoh a field service representative, the requirement for use of 70% Ethanol during daily shutdown procedures and the requirement for use of CAP Class 1 reagent grade water for dilution of the concentrated wash and diluent solutions and reconstitution of lyophilized reagents. Failure to follow these requirements may negatively affect system performance, lead to corrosion of instrument components over time, or result in bacterial contaminati
- RECALL
Distribution of unapproved product labeling
- RECALL
The assay can potentially generate erroneously elevated or erroneously decreased HbA1c patient results.
- RECALL
Asfotase Alfa (Strensiq) interferes with certain Tosoh assays which potentially causes falsely increased or falsely decreased immunoassay test results, depending upon the assay.
- RECALL
Falsely elevated progesterone assay values will occur when using certain progesterone assay part numbers due to cross reactivity of DHEA-S, a metabolite of the DHEA (dehydroepiandrosterone) supplement.
- RECALL
The firm has become aware of a potential issue that may affect the mixing motor drive harness and mixing home detection sensor relay harness on your AIA-900 Analyzer. It is possible that the harnesses could rub against the Plarail chain during operation and result in premature wear. If observed, this issue will cause the following system error to be reported D.lane Mix home overrun error [4093] . If observed, this issue will cause the AIA-900 Analyzer not to function and the D.lane Mix home overrun error [4093] will be reported by the system. Replacement of the motor drive harness and mixing home detection sensor relay harness will mitigate the potential for premature wear and effectively prevent this issue from causing the system error. If the sensor relay harness fails, the AIA-900 analyzer will cease to function and will be unavailable for use. If this issue occurs, there ma
- RECALL
This recall has been initiated due to a potential malfunction of the photo interrupter (Pl). The potential malfunction has been attributed to aging and premature deterioration of the Pl collector current.
- RECALL
The firm has become aware of a potential issue with the AIA-360 analyzer that could prevent the table home sensor from detecting the table home position. If the malfunction with the table home sensor occurs on the AIA-360, the sensor board may need to be replaced. If the home sensor fails to detect the home position, the AIA-360 analyzer will cease to function and will be unavailable for use. If this issue occurs, there may be a delay in testing and reporting patient test results. Tosoh has received three (3) complaints related to this issue with no serious injuries reported.
- RECALL
The label contains two different methodologies. Quality Control values for non-FDA approved methodology (CL) are on the label in addition to the FDA approved methodology values (AIA). Two sets of instructions were included on the label.
- RECALL
Visual inspection of the pipette tips indicated that some of the tips were not uniform in size/length which was causing error messages on the analyzers.
- RECALL
Some combinations of Calibrator lots and AlA PACKS resulted in Calibrator #6 not giving a value, making the calibration unacceptable.
- RECALL
The value after reconstitution appeared to be lower than the assigned value on the label. The measured value for Lot BCAL05R was 5.3%, whereas the value on the label is 5.7%. The criteria of the value is +/- 0.3%.
- RECALL
Reports of low calibration rate value flags; Use of the recalled product may result in failure to calibrate the instrument
- RECALL
The inner foil packs of AIA-PACK ST TT3, Lot FX17440 contain an incorrect expiration date of 10/2005. The outer box is labeled with the correct expiration date of 10/2006.
- RECALL
On 10/30/04, the firm initiated the recall and its notification was via letters requesting return of affected devices.
- RECALL
A software upgrade was released by the firm for its AIA-600 II analyzers, in that washing deficiencies caused by the analyzer were corrected.
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