Roche Cobas AmpliPrep Bi-Directional LIS Interfacing Guide
Complete engineering specification, HL7/ASTM protocols, pinouts, and parameter mapping for Roche Cobas AmpliPrep on AILS Cloud LIMS.
1. Instrument Overview & Interfacing Architecture
The Roche Cobas AmpliPrep is a high-performance immunoassay & pcr instrument designed for diagnostic laboratories and hospital health networks. Integrating this analyzer directly with AILS Cloud LIMS eliminates manual transcription delays, prevents typographical patient identification errors, and automatically enforces Westgard delta check algorithms.
AILS automatically generates worklist queries (QRY^Q02 / ASTM orders) mapped to patient accession barcodes and pushes test instructions directly to the instrument sample tray.
Raw OBX / Result records are parsed instantly within 200 milliseconds, flagged for abnormal reference ranges, and linked to pathologist digital signature queues.
2. Hardware Connection & Communication Settings
3. Sample Message Wire Frame
Below is a real-world communication frame transmitted between the Roche Cobas AmpliPrep and AILS LIS middleware:
<STX>1H|\^&|||Cobas AmpliPrep|||||||P|1394-97|20260815140000<CR><ETX>4D<CR><LF> <STX>2P|1||||Harris^Mark|||M<CR><ETX>2E<CR><LF> <STX>3O|1|ACC2026081516||^^^HIV1_PREP|||||||A<CR><ETX>4F<CR><LF> <STX>4R|1|^^^EXTRACT_STATUS|COMPLETE|||N||F<CR><ETX>3A<CR><LF> <STX>5L|1|N<CR><ETX>0A<CR><LF>
4. Parameter & LOINC Standard Code Mapping
| Instrument Code | LOINC Code | Clinical Parameter Name | Standard Units | Default Reference Range |
|---|---|---|---|---|
| EXTRACT_STATUS | 6770-3 | Extraction Batch Status | Status | Completed |
| RACK_ID | 6771-1 | Output Tube Rack Barcode | ID | Valid |
5. Biomedical Engineering Tips & Common Gotchas
AmpliPrep connects as TCP Client to AILS Gateway Server on Port 5001.
Verify that sample rack accession barcodes match extraction batch manifests.
Ensure AILS audit log records operator ID and reagent cassette expiration dates.
Frequently Asked Questions: Roche Cobas AmpliPrep Interfacing
Common biomedical engineering questions regarding connection, worklist setup, and data capture with AILS Cloud LIMS.
Q: What interface protocol does Roche Cobas AmpliPrep use?
Roche Cobas AmpliPrep uses ASTM E1394 protocol over TCP/IP socket connection.
Q: How does AmpliPrep link with downstream PCR instruments (e.g. Cobas TaqMan)?
AILS LIMS links the AmpliPrep extraction tube rack barcode directly to the downstream PCR run plate map.
Q: What parameters are tracked during AmpliPrep extraction?
Sample ID, extraction protocol name, reagent kit lot number, extraction timestamp, and completion status.
Q: Does AmpliPrep support bi-directional worklist verification?
Yes. AmpliPrep queries AILS Gateway to confirm sample tube eligibility before dispensing extraction reagents.
Q: How does AILS handle internal control dispensing validation?
Internal control dispensing confirmation transmitted in the ASTM stream is verified before releasing results for PCR amplification.
Connect Your Roche Cobas AmpliPrep to AILS in Under 15 Minutes
Our specialized biomedical engineering team provides complete plug-and-play drivers, cable diagrams, and bi-directional test verification for the Roche Cobas AmpliPrep.