Hesii TD5A Autologous Fat Grafting Centrifuge

Overview

The Hesii TD5A Autologous Fat Grafting Centrifuge is a purpose-engineered benchtop centrifuge designed specifically for clinical fat processing in aesthetic surgery, dermatology, oral and maxillofacial surgery, and orthopedic regenerative applications. Unlike general-purpose centrifuges, the TD5A operates under precisely controlled low-speed sedimentation conditions—optimized for gentle, isothermal separation of adipose tissue aspirates without thermal stress or mechanical shear damage to adipocytes. Its core principle relies on differential sedimentation kinetics in a fixed-angle rotor configuration, enabling rapid stratification of lipoaspirate into three distinct layers: supernatant oil, viable adipocyte-rich middle layer, and infranatant blood/debris. This process preserves adipocyte membrane integrity, mitochondrial function, and stromal vascular fraction (SVF) viability—key determinants of graft retention and long-term volume stability in autologous fat transfer procedures.

Key Features

• High-torque brushless DC frequency-controlled motor ensures stable rotational performance at low speeds (up to 4000 rpm), minimizing vibration and thermal generation during extended runs.
• TFT-LCD full-color touchscreen with dual-input interface (touch + physical keys) displays real-time RCF, speed, time remaining, and temperature—allowing parameter adjustment mid-run without halting operation.
• Biocontainment-optimized angular rotor system features integrated silicone O-rings compliant with EU RoHS Directive 2015/863, preventing aerosol leakage during high-volume syringe centrifugation.
• Triple-stage damping mechanism—including asymmetric counterweight design, elastomeric suspension mounts, and dynamic imbalance compensation—ensures sample integrity and prevents resuspension of settled adipocytes.
• Full stainless-steel 304 centrifuge chamber, reinforced steel front panel, and triple-layer safety housing meet IEC 61010-2-020 requirements for medical laboratory equipment.
• 10-step programmable acceleration and deceleration profiles allow fine-tuned control over g-force ramping—critical for preserving fragile adipocyte clusters during spin-up and spin-down phases.
• Automatic lid lock with silent electromagnetic engagement provides secure closure verification and eliminates mechanical wear associated with traditional latch systems.

Sample Compatibility & Compliance

The TD5A accepts standard Luer-lock syringes (10 mL, 20 mL, and 50 mL) directly in its sterilizable angular rotor—eliminating manual transfer steps that introduce contamination risk or cell loss. All rotors and adapters are autoclavable at 121°C for 20 minutes (EN 285), supporting strict aseptic technique in surgical settings. The device complies with ISO 13485:2016 for medical device quality management systems and holds CFDA registration for Class II medical devices in China. While not FDA-cleared for U.S. distribution, its design aligns with ASTM F2609 (Standard Guide for Processing Adipose Tissue for Regenerative Applications) and supports Good Manufacturing Practice (GMP)-aligned workflows when integrated into validated fat processing protocols.

Software & Data Management

The TD5A operates via embedded firmware with no external PC dependency. All run logs—including date/time stamp, rotor ID, speed, RCF, duration, and fault codes—are stored internally and exportable via USB port in CSV format. Audit trail functionality records operator-initiated parameter changes in chronological order, satisfying basic traceability requirements for GLP-compliant clinical laboratories. Optional firmware upgrades support multi-language UI (English, Chinese, Russian, Portuguese) and configurable passcode-protected user profiles to enforce role-based access control.

Applications

This centrifuge serves as a critical component in point-of-care fat processing workflows across multiple specialties:

• Aesthetic plastic surgery: Isolation of purified adipocyte suspensions for facial volumization, breast augmentation, and body contouring.
• Dermatology: Preparation of adipose-derived stromal vascular fraction (SVF) for chronic wound healing and scar revision.
• Oral & maxillofacial surgery: On-site processing of lipoaspirate for alveolar ridge augmentation and TMJ defect repair.
• Orthopedics: Support for adipose-derived mesenchymal stem cell (AD-MSC) isolation prior to intra-articular injection in osteoarthritis management.
• Regenerative dentistry: PRP and platelet-rich fibrin (PRF) preparation using optional dedicated rotors compatible with commercial PRP tube formats.

FAQ

Is the TD5A suitable for sterile field use in operating rooms?
Yes—the rotor assembly is fully autoclavable, and the sealed chamber design meets ISO 13485 requirements for reprocessing in clinical environments.

Can the centrifuge accommodate non-standard syringe formats?
Custom adapters can be fabricated upon request for syringes with non-Luer interfaces or alternative volumes (e.g., 30 mL, 60 mL), subject to mechanical validation.

Does the device support remote monitoring or network integration?
No native Ethernet or Wi-Fi capability is included; however, USB data export enables integration into local LIS or EMR systems via third-party middleware.

What maintenance intervals are recommended?
Routine inspection every 6 months is advised; rotor calibration verification annually; brushless motor requires no scheduled lubrication or replacement under normal usage conditions.

How does the TD5A compare to gravity-based fat washing systems?
Centrifugal separation achieves consistent stratification in 30 minutes for passive settling—reducing exposure to ambient contaminants and enzymatic degradation while improving batch-to-batch reproducibility.