PATTERN NEEDLES AND CARTRIDGE FOR TATTOO REMOVAL

A disposable cartridge may be used in conjunction with dermal abrasion for tattoo removal. The cartridge may include a needle bundle that is driven in a reciprocating or reciprocating/rotating motion to abrade dermal tissue during the tattoo removal process. The needle bundle may include a plurality of needles arranged in a circular pattern with each needle tangent and abutting the adjacent needle. The needles may be arranged around a central arbor to form a ring of adjacent needles. Alternatively, the needle bundle may include a tubular needle with sharpened tips formed on an end of the tube. A disposable cartridge used in conjunction with dermal abrasion for tattoo removal may also include a seal/spring/retainer combination element that stretches and rebounds to its original shape to provide a spring action and provides a sealing function to reduce or prevent the discharge of a fluid used in the tattoo removal process.