Pre-Analytical Tube Sorting System

What is the Pre-Analytical Tube Sorting System?

A pre-analytical tube sorting system reads barcodes on incoming primary tubes and sorts them into racks by destination analyzer or test group. It shortens manual sorting time and misplacement in laboratories receiving several hundred to several thousand tubes a day.

Overview

Tubes are loaded in bulk or in racks at an input module. A barcode reader and camera identify the tube, read its barcode, check cap color and height, and query the LIS or middleware for the pending test orders. A robotic gripper or conveyor moves the tube to a destination rack or lane, for example chemistry, immunoassay, hematology, coagulation or send-out. Typical modules include a bulk input, a centrifuge buffer, and several output drawers with 30 to 100 positions each. Throughput ranges from 600 to 1,500 tubes per hour. Real-time tracking records where each tube is, and an exception lane collects tubes with unreadable barcodes, missing orders or wrong tube types. Integration with track-based analyzers removes hand-carrying of racks across the laboratory.

How does it work?

Pre-analytical automation combines barcode identification, robotic handling and liquid transfer. A tube enters on an input lane where a camera or laser scanner reads the barcode and a vision system identifies tube type, cap color and height. A gripper lifts the tube, and a decapper removes the stopper by torque-controlled rotation or pull, detecting cap type to avoid breakage. Sorting systems route tubes by test request through conveyors, diverters or robotic arms into racks for each analyzer. Aliquoters use disposable tips on a pipetting channel with capacitive liquid-level detection and clot detection to transfer serum or plasma to labeled secondary tubes. Recappers apply a new cap or pierceable seal to limit evaporation and aerosol. Everything is coordinated by middleware that exchanges orders and results with the laboratory information system.

What are the key features?

• Barcode and camera identification of tube type and cap color
• LIS query for test orders with destination routing
• Bulk input with output drawers of 30 to 100 positions
• Exception lane for unreadable or unordered tubes
• Real-time tube tracking and location history
• Throughput of 600–1,500 tubes per hour

What are the technical specifications?

A typical pre-analytical tube sorting system configuration offers throughput of 600–1,500 tubes/h, input mode of Bulk or rack input, output positions of 200–800 total, tube diameter of 12–16 mm, tube height of 75–100 mm and identification of 1D/2D barcode reader, camera. Values are indicative of the product class; the exact figures for each configuration are confirmed on the quotation and the calibration documents supplied with the instrument.

Which applications is it used for?

The Pre-Analytical Tube Sorting System is used in central laboratory receiving and distribution, hospital consolidated laboratories, reference laboratory high-volume sorting and regional centers handling outreach specimens. Across the wider Sample Processing class, laboratories also deploy it for hospital central laboratory pre-analytics, reference laboratory high-volume receiving and blood bank sample preparation.

Which standards and certifications apply?

Relevant standards and methods include ISO 15189, CLSI GP44, CLSI AUTO01, CLSI AUTO03, ISO 15190 and IEC 61010-2-101. Certification candidates for this model are CE and ISO 13485 quality system; each is to be confirmed for the specific configuration before shipment, and certificates are supplied only where they have been issued.

Sample handling must protect staff and sample integrity. Place equipment where racks and conveyors connect to analyzers, and supply stable power and network. Validate barcode quality against the label specifications and test each tube type from your collection supplier. Verify aliquot volume accuracy, carryover, and absence of cross-contamination with dye or analyte studies. Review centrifugation and pre-analytical stability limits for each analyte so automated waiting times do not compromise results. Decontaminate grippers and decks per the manual, and dispose of tips and caps as biohazardous waste. Keep spare grippers and sensors on site, and document validation under ISO 15189.

How do I select the right Pre-Analytical Tube Sorting System?

Choose this variant when manual sorting takes significant staff time or causes misplaced samples, typically above 500 tubes per day across several analyzers. In the RFQ specify throughput, number of sort destinations, bulk or rack input, exception handling, track integration and LIS protocol. Ask for a documented interface test before acceptance.

How does it compare with other Sample Processing variants?

Begin with daily tube volume and the tube types in use, because capacity and gripper compatibility differ. A laboratory processing under 300 tubes a day may only need a labeler or a standalone decapper, while over 1,000 tubes a day justifies a sorter with aliquoting. Check the range of tube diameters, 12 to 16 mm, and heights, 75 to 100 mm, that the system accepts, and whether it handles pediatric micro-tubes and gel tubes. Evaluate cap removal reliability, aerosol containment and whether it handles screw and push caps. Confirm middleware and LIS connectivity, footprint, consumable cost for tips and caps, and the service response commitment, since downtime stops the whole pre-analytical flow.