Needle-free systems typically utilize high-pressure mechanisms or micro-needles to penetrate the skin and deliver substances. Some common technologies include:
1. Jet Injectors: These devices use a high-pressure stream of liquid to penetrate the skin and deliver drugs or other substances. 2. Micro-Needles: Extremely small needles that can painlessly penetrate the outer layers of the skin to deliver substances without reaching nerve endings. 3. Electroporation: A technique that uses electrical pulses to increase cell membrane permeability, allowing substances to enter cells more easily.
