A system and method for providing variable power is disclosed. The system includes a power supply which provides power to at least one instrument. A pedal comprises a variable resistor that is configured to produce a resistance value within a predetermined range based on an amount of pressure which is being applied to the pedal. The voltage being supplied to the instrument is varied in accordance with the resistance value produced at the pedal.

A needle assembly for a liquid applicator comprises housing with longitudinal channel. The channel comprises upper and lower open ends. A needle bundle is movably mounted in the channel, which comprises needle shaft and needles attached thereto. A biasing member is configured and mounted for (i) biasing the needle bundle longitudinally towards a retracted position and (ii) biasing the needles laterally towards a needle-guiding side wall of the housing adjacent the lower open end. The biasing member is configured and mounted to form a fluid seal between the lower and upper open ends. The biasing member comprises an elastic tubular section with opposite sides. The first side has a first rectified length. The second side has a second rectified length longer than the first rectified length so that the second side is less tensioned than the first side to bias the needles towards the needle-guiding side wall.

A tattoo needle cartridge comprising: a body portion housing a needle assembly; and an outlet portion on a first end of the body portion, the outlet portion including: a barrel with: a first barrel end adjacent to the body portion; a second barrel end opposite the first barrel end forming an outlet of the cartridge; and a barrel body having: an inner bore extending from the first barrel end to the second barrel end; and a forked barrel tip with two prongs extending from the barrel body towards the second barrel end.

The present invention teaches a cylindrical tattoo tube which includes an ink reservoir located on one side of the cylinder. A plunger may be included in the ink reservoir to control the amount of ink being dispensed. A user may manually actuate the plunger while tattooing, thereby eliminating the need constantly dip during the tattooing procedure.

An automatic tattoo apparatus can be used to robotically apply tattoos. A customer can shop on an online tattoo marketplace to select designs created by various artists located anywhere. The online tattoo marketplace can process and manage payments, artist and/or customer profiles, bookings, tattoo design uploads, browsing and design selection, design changes, and/or perform other actions. The automatic tattoo device can apply tattoos precisely, quickly, and may with reduced pain. The tattoo apparatus can apply a wide range of different types of tattoos, including but not limited to micro tattoos, dotwork, blackwork tattoos, realism tattoos, fine-line tattoos, etc.

Embodiments of a method for removing a tattoo through patterned trans-epidermal pigment release includes determining first treatment area of skin of a patient through a primary template including primary apertures, marking the first treatment area of skin of the patient along borders of the primary apertures to outline a grid of primary tegulae, and delivering a tattoo removal fluid to the marked first exposed skin in a first treatment session. The method further includes determining a secondary treatment area through a secondary template including secondary apertures, marking the secondary treatment area along borders of the secondary apertures to outline a grid of secondary tegulae, and delivering a tattoo removal fluid to the secondary tegulae in a second treatment session.

Disclosed is a tattoo needle nozzle with rounded silicone rubber grains. The rounded silicone rubber grains are placed in the space between the outer and inner walls of the nozzle to stabilize tattoo needle in operation in order to reduce tattoo pain, and enhance the levels of precision and clarity of tattoo designs.

A system for monitoring at least one characteristic of biological material of an individual includes a wearable product. The wearable product includes an outer surface and a skin contact surface defining an internal area. An analysis portal is disposed in the internal area, and includes a sensing portion and an investigation portion. The sensing portion has at least one sensor, and the investigation portion that includes a computing device having a health screener. The sensing portion of the analysis portal comes into contact with a biological material of the individual, and the health screener is configured to determine at least one characteristic of the biological material. The computing device is communicatively coupled to the sensors and the display.

The present invention teaches a cylindrical tattoo tube which includes an ink reservoir located on one side of the cylinder. A plunger may be included in the ink reservoir to control the amount of ink being dispensed. A user may manually actuate the plunger while tattooing, thereby eliminating the need constantly dip during the tattooing procedure.

An adapter for use with a tattoo machine is disclosed. The adapter may enable a tattoo machine configured with a wireless battery pack to switch to a wired configuration by removing the wireless battery pack and replacing it with the adapter. One end of the adapter may be affixed to a portion of the tattoo machine so that the adapter may deliver power to the componentry of the tattoo machine to facilitate the operation of the tattoo machine. The other end of the adapter may include a connector for enabling connection of the adapter to a power supply or power source so that power may be delivered from the power supply or power source through the adapter and to the tattoo machine. When the tattoo machine is powered, the motor of the tattoo machine may reciprocate a needle included in a needle cartridge affixed to the tattoo machine.