Table 1.

Examples of medical devices for PRP preparation. Blood Vol.: Volume of blood PRP vol.: Volume of PRP; Platelet conc. factor: Platelet concentration factor.

Technology	Examples of Devices	Blood Vol.	PRP Vol.	Platelet Conc. Factor	Biological Product	Remarks
Low force centrifugation in tubes or syringes	BTI PRGF Endoret	8 mL	1–2 mL	2–3×	Plasma PRP (LP-PRP)	Devices with no physical separation of platelet rich plasma from red and white blood cells. Operator dependent results
	Arthrex ACP double syringe	15 mL	4–6 mL	1.6–2×
High force centrifugation in hourglass shaped devices	Tozai Holdings Prosys	25 mL	2 mL	6–8×	Buffy coat PRP (LR-PRP)
High force centrifugation in devices with floating buoy or shelf	Biomet GPS III	27–54 mL	3–6 mL	6–9×	Buffy coat PRP (LR-PRP)	Devices with physical separation of platelet rich plasma from red and white blood cells. Device dependent results
	Harvest SmartPrep2	27–54 mL	3–7 mL	3–8×
Variable force centrifugation in computer aided systems	Arthrex Angel	40–180 mL	variable	1–18×	Setting dependent product
	Arteriocyte Magellan	26–52 mL	6 mL	3–7×
High force centrifugation in tubes with separating gel	RegenTubes	10 mL	5–6 mL Can be reduced to 1.5 mL	1.6–1.7× Up to 4× by PPP removal	Plasma PRP (LP-PRP)