Fig. 2From: Neem-silicone lotion and ultrasound nit comb: a randomised, controlled clinical trial treating head louse infestationProduction prototype ClearBrush® comb for use in the clinical investigation. This device consists of a long handle to house the batteries to power the ultrasound actuators. The combing head has a detachable section for changing the steel comb tooth units and has tell-tale lights for ultrasound generation and battery power, actuated by an on/off switch. The comb head is angled relative to the handle by 16.5°Back to article page