From: Biological safety of Electroacupuncture with STS316 needles
 | 0.18 mm | 0.20 mm | 0.25 mm | 0.30 mm | |
---|---|---|---|---|---|
Uncoated | Needle | X | X | X | X |
TUNEL | – | – | + | – | |
(NPN/NPT) | 35/66743 | 22/62854 | 1437/56464 | 28/97992 | |
Coated | Needle | O | O | O | O |
TUNEL | – | ± | – | + | |
(NPN/NPT) | 56/54079 | 1196/86717 | 62/65122 | 1381/67015 |