Therapeutic Effectiveness of Needle Injection Versus Needle-Free Jet Injector System for Botulinum Toxin Type a in Palmar Hyperhidrosis

CONCLUSIONS: When the trigger of the pressurized needle-free injector device is activated, the gas powered driving pressure propels BTX-A through an orifice (0.13 mm) about four times narrower than a 30 G needle at very high speed. As most pain occurs during the needle prick itself, the advantage of a small orifice coupled with high-speed penetration of BTX-A through the pressurized device results in reduced pain during administration. The needle-free direct administration system administers the injectate under the skin without a visible needle.PMID:37537972 | DOI:10.1177/12034754231191062

Source: Hand Surgery - August 4, 2023 Category: Surgery Authors: Hitomi Watanabe Yuichiro Ohshima Daisuke Watanabe Source Type: research