Centurion Scientific PrO-Hospital CW Benchtop Cell Washing Centrifuge

Overview

The Centurion Scientific PrO-Hospital CW is a purpose-engineered benchtop centrifuge designed specifically for clinical transfusion laboratories and diagnostic workflows requiring high-reliability, low-speed cell washing and sedimentation. Operating on the principle of sedimentation under controlled gravitational force (RCF), it delivers precise, reproducible pelleting of red blood cells (RBCs), white blood cells (WBCs), and platelets—critical for pre-transfusion testing protocols. Unlike general-purpose centrifuges, the PrO-Hospital CW integrates hardware and control logic optimized for serological assay integrity: its gentle yet consistent acceleration/deceleration profiles minimize cell lysis and preserve antigenic surface integrity during wash cycles. The unit complies with ISO 15189 requirements for medical laboratory quality management and supports GLP-aligned operational traceability when paired with documented SOPs.

Key Features

• Fixed-angle rotor accommodating twelve 12×75 mm or ten 10×75 mm test tubes—compatible with standard serology tubes used in ABO, Rh, Coombs, and crossmatch procedures.
• Brushless DC motor engineered for long-term stability, low thermal drift, and maintenance-free operation over >10,000 run cycles.
• Four-point mechanical lid interlock system with integrated lid position sensor—prevents initiation or continuation of rotation unless fully engaged and verified.
• Real-time imbalance detection with automatic deceleration and audible/visual alarm; self-resetting after correction to avoid workflow interruption.
• Programmable acceleration and deceleration across ten discrete profiles—enabling optimization for fragile RBC suspensions or viscous plasma layers.
• Blue LED display with intuitive membrane keypad; dual-mode operation (rpm or RCF) with 10 programmable memory slots for protocol recall.
• Stainless-steel centrifuge chamber and rotor housing—resistant to ethanol, sodium hypochlorite, and other common decontamination agents per HTM 01-05 guidelines.
• Integrated overspeed protection and motor overtemperature sensing—hardware-level safeguards independent of firmware control loops.

Sample Compatibility & Compliance

The PrO-Hospital CW is validated for use with human whole blood, saline-washed RBCs, antibody-coated cells, and reagent red cells. Its 1250 × g maximum RCF ensures complete pelleting of clinically relevant cell populations without excessive shear stress—validated per CLSI EP05-A3 and ASTM E2916 standards for centrifuge performance verification. The device meets IEC 61010-1:2012 for electrical safety in laboratory equipment and carries CE marking under the EU Medical Device Regulation (MDR) Annex XVI classification for ancillary equipment supporting in vitro diagnostic procedures. It supports audit-ready documentation when operated within a QMS compliant with ISO 13485 and UK MHRA guidance on equipment qualification.

Software & Data Management

While the PrO-Hospital CW operates as a standalone instrument without embedded network connectivity, its 10-program memory and parameter logging (run time, speed, RCF, acceleration profile) enable manual record-keeping aligned with FDA 21 CFR Part 11 principles for electronic records. Users may integrate run logs into LIMS via barcode-scanned protocol IDs or printed audit trails. Firmware supports calibration lockout—only authorized service personnel can modify speed or timer calibration offsets, ensuring metrological traceability to NPL-certified reference centrifuges.

Applications

• ABO and Rh(D) typing via tube agglutination assays requiring standardized wash steps.
• Direct and indirect antiglobulin tests (Coombs test), where residual unbound IgG must be removed without disrupting weak antigen-antibody bonds.
• Antibody screening and identification using panel cells—ensuring uniform pellet density and supernatant clarity.
• Preparation of washed RBC suspensions for adsorption/elution studies and autoantibody characterization.
• Quality control of reagent red cells prior to distribution—verifying absence of hemolysis post-centrifugation.

FAQ

What is the maximum recommended run time for continuous operation?
The PrO-Hospital CW is rated for uninterrupted operation up to 99 minutes per cycle. For extended batch processing, allow ≥5 minutes cooling interval between consecutive runs at maximum speed.
Can this centrifuge be used for platelet-rich plasma (PRP) preparation?
No—it is not designed for differential centrifugation protocols requiring variable speed gradients or swing-out rotors; its fixed-angle geometry and RCF ceiling are optimized for cell washing, not platelet separation.
Is rotor balancing required before each run?
Yes. While the imbalance detector provides real-time protection, manual symmetry verification of tube mass distribution remains mandatory per CLSI GP45-A4 to prevent premature bearing wear.
Does the unit support third-party rotor interchangeability?
No. Only the factory-supplied fixed-angle rotor (Cat. No. CW-ROT-12) is certified for use; substitution voids CE compliance and safety warranty.
How often should speed calibration be verified?
Annual verification against an NIST-traceable tachometer is recommended, or after any impact event, motor servicing, or observed deviation exceeding ±15 rpm at setpoint.