A tattoo machine ink dispenser reservoir structure includes a handle having at least two seats to house and retain at least two ink cartridges each provided with an occluding element pierced or adapted to be pierced for the introduction of air when in use; a skin needle connected to the handle; a connecting system that connects the at least two ink cartridges with the skin needle and that includes at least two nozzles; and a pneumatic pump, wherein the at least two ink cartridges are controlled by the pneumatic pump with pneumatic delivery ducts, branch ducts and a system that selects/diverts the compressed air flow and that is operatively connected between the pneumatic delivery ducts and branch ducts, and wherein the pneumatic delivery ducts are provided with check valves.

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 tube for a tattoo machine has a tube portion and a grip portion. The tube portion has a first ink storage cavity, and the grip portion extends about the tube portion so that the proximal end, the distal end, and the sidewall of the grip portion cooperate with the tube portion to define a second ink storage cavity. The second ink storage cavity is in fluid communication with a needle receiving passage of the tube portion and at least a portion of the sidewall is flexible so that upon application of a compressive force on the flexible portion of the grip portion, a volume of ink is transferable from the second ink storage cavity, into the needle receiving passage, and into the first ink storage cavity.

A marking/drying tool applies ink to biological tissue using a single handheld device. A cylindrical body retains a felt tip movable between a retracted position within the body and an extended position outside the body for marking the tissue. A gas source has a manual valve to selectably dispensing a drying gas onto the tissue. In a preferred embodiment, an interlock prevents dispensing of drying gas when the tip is in the extended position and prevents the tip moving to the extended position when the manual valve is dispensing the drying gas.

Embodiments of an actuating device for actuating a needle cartridge and puncturing an epidermis with controlled depth. The actuating device includes a motor housed in a motor housing, an actuating rod driven by the motor and configured to actuate in a reciprocating motion, and an adjustment mechanism. The actuating rod is housed in a rod housing, the rod housing forming a device aperture configured to receive a needle cartridge and to attach to the needle cartridge. The adjustment mechanism interfaces with the rod housing and is configured to adjust a position of the rod housing relative to the motor housing while not rotating the rod housing relative to the motor housing.

Methods of tattooing and tattoo inking systems comprising a housing, an ink reservoir, a pump and a tattoo cartridge. According to a further embodiment the tattoo inking system comprises a system of channels and valves that allow the artist to provide ink to the tattoo cartridge while working and without dipping.

A needle assembly for a liquid applicator includes a housing comprising a tubular longitudinal channel and a guide/inner surface. The channel comprises an upper open end and a lower open end. Liquid storage grooves for storing liquid by capillary action extend generally transversely in the guide/inner surface above the lower open end. A needle bundle is mounted in the housing. The needle bundle comprise one or more needles longitudinally reciprocally movable in the channel and being biased against the guide surface, or towards the inner surface, across the grooves such that, during longitudinal reciprocal movement of the needle bundle, the needle bundle maintains contact with the guide surface and the liquid stored in the grooves, or maintains a capillary gap between the needle bundle and the inner surface, for drawing the liquid out of the grooves by capillary action.

Disclosed herein are transdermal microneedling devices that generate and emit low RF energy. Such a microneedling device may comprise a drive motor, drive circuitry for controlling the drive motor, and a drive linkage located on the drive motor rotor. The microneedling device may also comprise a power source capsule comprising a battery and associated power management circuitry. Also included may be a needle cartridge coupled to the main body, and comprising a drive shaft and a needle unit coupled to a distal end of the drive shaft to move therewith, where the needle unit has at least one needle extending therefrom. The drive shaft may comprise a linkage member configured to engage the drive linkage of the drive motor, and be configured to be driven by the drive motor and thereby drive movement of the needle unit such that the at least one needle extends beyond and retracts within the distal end of the needle cartridge. The microneedling device may also include RF energy circuitry powered by the power source and configured to generate RF energy, as well as transfer circuitry configured to transfer the generated RF energy from the RF energy circuitry to the at least one needle.

A tattoo needle includes: a needle piercing portion. The needle piercing portion includes at least one piercing projection, wherein each of the at least one piercing projection comprises at least one substrate and a plurality of needle teeth. The number of the at least one substrate is one, the plurality of needle teeth is arranged on a side surface of the one substrate, the plurality of needle teeth are arranged in a row on the substrate, a central axis of each of the plurality of needle teeth is perpendicular to the side surface of the one substrate; and the one substrate is configured to limit a piercing depth that the plurality of needle teeth pierces into a skin.

An introduction needle includes a needle piercing portion. The needle piercing portion comprises a piercing projection, the piercing projection includes a substrate and a needle tooth, the needle tooth is fixedly arranged on a side surface of a side of the substrate, a central axis of the needle tooth is perpendicular to the side surface of the substrate.