The MEDIFUGE CGF is a centrifuge designed for dental practice and specialized outpatient clinics, specifically for processing blood to obtain Concentrated Growth Factors (CGF) in a sterile environment. This device is intended for use in periodontology, implantology, maxillo-facial surgery, cosmetic surgery, and general surgery for the healing of ulcers and wounds.
Function Description:
The MEDIFUGE CGF is a powerful and versatile centrifuge that offers direct operation for maximum ease of use. It processes blood to obtain CGF, which is a reparative biomaterial comparable to platelet and fibrin concentrate. CGF consists of a fibrin block and a platelet concentrate, rich in plasma cytokines, platelets (thrombocytes), activated fibrin, leukocytes, growth factors (GF), and antibodies. These components contribute to blood coagulation, neo-angiogenesis (promoting vascularization and graft survival), plasma cytokine activation, local immune system activation, and the release of GFs from platelet disaggregation and fibrin concentrate. CGF-induced processes include angiogenesis, immunization, proliferation of fibroblasts and osteoblasts, and repair stimulation and modulation. Structurally, CGF exhibits slow and natural polymerization, leading to a concentration of physiological thrombin, and forms a thin, soft, elastic, and permeable network that allows for the colonization of reparative cells, red blood cells, white blood blood cells, platelets, and antibodies.
The device operates with two preset cycles for blood centrifugation to achieve fibrin concentration and fibrin clots. The rotor shape and tube inclination are specifically designed to optimize results. The control card includes current and voltage control to prevent electrical overloads. In case of machine or control card failure, the lid remains closed until the rotor stops. An integrated UVC lamp provides a decontamination cycle.
Important Technical Specifications:
- Internal Codes: MF 200 (for 230 Vac) and MF 200 100 (for 100-115 Vac).
- Power Supply:
- MF 200: 230 Vac +/-10% 50/60 Hz 120VA.
- MF 200 100: 100-115 Vac 50/60 Hz 120VA.
- External Fuses:
- MF 200: 2x T 1.25 AL 250V (for mains 230 V).
- MF 200 100: 2x T 2 AL 250V (for mains 100-115 V).
- Internal Fuses (service personnel replaceable only): 1x T 6.3 AL 250V and 1x T 0.63 AL 250V.
- Operator Interface: Three-digit LED display and two buttons.
- Motor: DC 24 V 6500 rpm.
- Dimensions (D x W x H): 280 x 320 x 240 mm.
- Weight: 9.4 kg (centrifuge only).
- Environmental Conditions: Internal use, height up to 2000 m above sea level, humidity up to 80%, ambient temperature 2°C to 40°C. The environment for CGF preparation must be between 20°C and 25°C.
- Classification: Class I equipment, no applied part, console classified as IpX0, no protection against anesthetic mix, continuous operation with preset cycles.
- Rotor: MF2COPR Rotor, designed to hold 8 tube holders for 10ml test tubes.
Usage Features:
- Preparation: Before use, ensure all components are present and undamaged. The centrifuge must be placed on a stable, level surface with at least 15 cm free space around it for aeration. The mains switch should be off before connecting the power cable.
- Tube Loading: Tubes must be inserted in pairs and in opposite holders to balance the rotor, preventing vibrations that could damage blood components. Only Silfradent-recommended test tubes (PV 200R) and tube holders (Teflon®) should be used.
- Operation: The centrifuge automatically opens its lid upon startup. The user selects either the CGFP or PRP cycle using the SET button. The selected cycle is indicated by an LED. Pressing the START/STOP button initiates the cycle. The display shows motor rotation status and, during the UV cycle, indicates the UV cycle and remaining minutes.
- Lid Mechanism: The lid automatically opens at the end of a cycle, signaled by a longer beep. During operation, the lid is locked; attempting to force it open is hazardous. The lid will only open when the rotor has completely stopped.
- UV Decontamination: A UVC lamp inside the centrifuge performs a decontamination cycle. This cycle is initiated by pressing both buttons on the panel for 3 seconds after the lid is closed.
- CGF Preparation Process:
- Disinfect the patient's blood sampling point and apply the tourniquet (CGF K1 LCE).
- Collect blood in PV 200R tubes using the safety blood collection set (CGF K1 AGO).
- Insert tubes symmetrically into the MEDIFUGE CGF rotor within two minutes of blood collection.
- After centrifugation, remove tubes and place them in the tube holder (CGF K1 PPR).
- Separate serum from the fibrin clot using the Fibrin separator (CGF K1 SPF) and grid (CGF K1 GSP).
- The fibrin clot can be pressed into a membrane using the Membrane shaping pliers (CGF K1 FMP) or cut into particulates using blunt scissors (CGF K1 FPS) for injection with the Fibrin injector (CGF K1 INF).
- Saline solution (CGF K1 FSL) can be added to the fibrin clot.
- For homogeneous gel, the CGF can be processed with the HOMOGENIZER ROUND UP.
Maintenance Features:
- Cleaning: The external surface can be cleaned with a soft cloth moistened with water and/or mild detergent. Abrasive products should not be used. The rotor chamber can be disinfected with alcohol solutions, respecting manufacturer instructions.
- Disinfection: Reusable instruments must be disinfected after use by placing them in solutions effective against pathogens like HIV. Avoid "dry out" of residues on instruments. Use non-corrosive, enzymatic detergents.
- Sterilization: The Teflon® tube holders can be removed and sterilized in an autoclave at 134°C for 7 minutes (2.1 bars) or 121°C for 15 minutes (1.1 bars). Other reusable accessories (e.g., stainless steel containers, pliers, spatulas, scissors) must be cleaned, disinfected, and sterilized before use. Packaging materials for sterilization should be film of paper and plastic for autoclaves.
- Rotor Maintenance: The rotor must be securely fixed to the motor shaft. It can be removed for cleaning or replacement by unscrewing the knob.
- UV Lamp Replacement: The UV lamp can be replaced by loosening screws, removing the metal plate, pulling out the old lamp, inserting a new one, and re-fastening the cover.
- Technical Support: For technical problems, contact Silfradent S.r.l. technicians. When returning the device for repair, include all parts and the device's name, code, and serial number.
- Fuses: The device has external fuses accessible from the back and internal fuses replaceable only by service personnel.
- Troubleshooting: The manual provides a troubleshooting guide for various error codes (OL, E0, E1, E2, E3, E4, E5, E6, E7) and common issues like a blocked rotor, power card problems, or lamp failure, with corresponding solutions.
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