Mini-Stem®System
The closed-loop disposable device for processing autologous microfats with high cellular vitality.

A lab
in the palm
of the Hand
Mini-Stem® is a disposable, fully sealed and closed-loop device that processes the patient's autologous fat in purified and injectable microfats in just 30 minutes, directly in the clinic.
No outside lab. No additional equipment. Everything you need is included in the box.
How it works Mini-STEM®
Relief of autologous lipoaspirato with dedicated cannula 12G
50 ml Ringer Lactate + centrifugation 5 minutes
Liquid phase separation: RBC, deleted cell debris and anesthetic
Injectable suspension with 92%+ cell vitality. Injectable with 18G–22G needles for structural lipofilling and joint treatments.
Additional microfat emulsification to obtain fluid nanofats, injectable with 21G–23G needles. Indicated for periocular area, fine wrinkles and delicate surfaces where the microfat is not injectable.

Patented design.
Technology without compromise.
| Type | Close-loop disposable device |
| Capacity | 0 to 125 cc thick fat |
| Process time | 30 minutes point-of-care |
| Cellular vitality | 92%+ vital adipocytes |
| Cannula harvesting | 12G dedicated (included) |
| Centrifugal request | Laboratory Standard (not included) |
| Sterility | 100% sealed system, closed-loop |
| Certifications | FDA Cleared · CE MDR |
| Production | Jointechlabs, Inc. — USA USA |
| Europe distribution | eywa medical |

Higher than methods
traditional
The liquid phase separation process during the centrifugation preserves the isthological integrity of the tissue. No other system on the market guarantees this level of purity and vitality.
Mini-Stem® device
Complete kit
Packaging JointechlabsComparative table
Mini-STEM vs other systems
Comparison of the main qualitative, quantitative, procedural and regulatory parameters.
| Criteria | Mini-STEM | Other systems |
|---|---|---|
| Quality | ||
| Dose per cc | 9 – 22 million/10 cc | 3 – 5 million/10 cc, sometimes less |
| Cell phone and vitality |
|
|
| Purity | Washing with lactated Ringer solution | Often only rinse with physiological solution |
| Proliferation capacity (CFU-f) | 0,72% | Some or less than 0.07% |
| Contains nucleate cells (TNCs) | 1.400,000 ml microfat | < 350.000 per ml of microfat |
| Particle size | 600 – 800 μm | 300 – 800 μm |
| Net income |
|
|
| Process and System | ||
| Process coherence | Standardized and programmed time, strength and pressure | Manual variables, often with need for agitation |
| Cannula and withdrawal syringe |
|
|
| Quantity | Up to 180 ml lipoaspired input, up to 90 ml microfat output. Sufficient for the 4 main joints. | Very lower work, or requires reuse of the device |
| Time | 45 min – 1 hour total; 10–20 min processing (fast or extended protocol) | ~1 hour total; 15–30 min processing, often with manual agitation |
| Complete kit | Most consumables included. Separate refuge required. | Often requires separate accessories kits or additional consumable management |
| Certifications and production | ||
| Regulatory approval |
| Can not have any of these certifications |
| Production venue | United States, under supervision of the regulatory bodies indicated | Various countries, generally not the United States |
Kasagga A, Verma A, Saraya E, et al. (2025) — Autologous Versus Allogeneic Adipose-Derived Mesenchymal Stem Cell Therapy for Knee Osteoarthritis: Systematic Review, Pairwise and Network Meta-Analysis of RCTs. Cureus 17(4): e82713. Read the full study →
The table data is based on the specifications of Jointechlabs, Inc. Scientific references concern mesenchymal cells derived from adipose tissue (AD-MSC) in general and do not constitute a specific clinical evaluation of the Mini-STEM® device.
Request a demo of MiniSTEM®
Contact us for a presentation reserved to your study or to enroll in the next Academy eywa medical course.






