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.

A method of treating the skin is disclosed that comprises placing a composition including frankincense essential oil on one or more needles; piercing the skin within the boundary of a stretch mark with the one or more needles to a depth between 0.5 mm and 2 mm; and repeating the piercing step over the area of the stretch mark.

A tattoo machine is disclosed herein. The tattoo machine comprises at least one brace for supporting the machine on a body part. A base carriage is supported on the brace and is displaceable along a length of the brace. A top carrier is hingeably coupled to the base carriage. A holder plate is displaceably coupled to the top carrier, wherein the displacement of the holder plate within the top carriage is facilitated in a direction along the length of the holder plate. A tattoo applicator is supported at a free end of the holder plate, wherein the tattoo applicator comprises a ball for housing a tip of a needle. One aspect of the tattoo machine is that the depth at which the tattoo applicator operated on a body part is manually adjustable.

The present invention is a big step forward from the traditional method of drawing a tattoo on human skin, which requires a skilled artist to use the tattoo machine comprising a single needle to deposit ink single injection by single injection. The disclosed invention comprises of a customizable needle substrate, a charging unit, an image processor unit, an ink roller and may be an injection device, to print a permanent multicolor image on the human skin using an instantaneous method of injecting the ink at desired depth in a human skin, resulting in an image or tattoo on the human skin. The method also causes less pain in comparison to the traditional method of tattoo making, as the process is relatively quick. Furthermore, the disclosed invention reduces the dependency on a skilled artist to draw a tattoo on the human skin.

A grasp-activated power switch is integrated within a handle for a hand-held power tool. The switch has an outer shell defining an inner channel with a first and second pin extending therein. The tool body has a first and second conductor. A motor within the tool body is electrically connected to one of the first or second conductors and to an internal battery. The internal battery is connected to the other of the first or second conductors. On its surface the outer shell has actuating and non-actuating areas. A manual grasping force when applied to the actuating area connects the first and second pins with the first and second conductors to complete an electrical circuit. The closure energizes the tool motor. With each grasp, the switch toggles power to the motor off or on, and when on, the motor transmits power through the inner channel.

A grasp-activated power switch is integrated within a handle for a hand-held power tool. The switch has an inner channel having an outer conductive layer, and a flexible outer shell having an inner conductive layer separated from the outer conductive layer by an air gap. On its surface the outer shell has actuating and non-actuating areas. A manual grasping force when applied to the actuating area flexes the inner conductive layer across the gap and electrically couples the two layers. The closure energizes an RF transmitter, which sends a pulse to a complementary receiver. With each pulse, the receiver toggles power to a motor off or on, and when on, the motor transmits power through the inner channel. When operating the tool, an operator may grasp the non-actuating area to avoid powering the tool off or on. The inner conductive layer may consist of conductive segments separated by a resilient insulator that maintains the switch open in the absence of a grasping force.

A grasp-activated power switch is integrated within a handle for a hand-held power tool. The switch has an inner channel having an outer conductive layer, and a flexible outer shell having an inner conductive layer separated from the outer conductive layer by an air gap. On its surface the outer shell has actuating and non-actuating areas. A manual grasping force when applied to the actuating area flexes the inner conductive layer across the gap and electrically couples the two layers. The closure energizes an RF transmitter, which sends a pulse to a complementary receiver. With each pulse, the receiver toggles power to a motor off or on, and when on, the motor transmits power through the inner channel. When operating the tool, an operator may grasp the non-actuating area to avoid powering the tool off or on. The inner conductive layer may consist of conductive segments separated by a resilient insulator that maintains the switch open in the absence of a grasping force.

A grasp-activated power switch is integrated within a handle for a hand-held power tool. The switch has an inner channel having an outer conductive layer, and a flexible outer shell having an inner conductive layer separated from the outer conductive layer by an air gap. On its surface the outer shell has actuating and non-actuating areas. A manual grasping force when applied to the actuating area flexes the inner conductive layer across the gap and electrically couples the two layers. The closure energizes an RF transmitter, which sends a pulse to a complementary receiver. With each pulse, the receiver toggles power to a motor off or on, and when on, the motor transmits power through the inner channel. When operating the tool, an operator may grasp the non-actuating area to avoid powering the tool off or on.

A device for delivering to the skin, scalp, or lips a skin-coloring cosmetic composition, in particular for correcting a skin color disorder or performing a permanent or long-lasting make-up that includes a base carrying a plurality of resorbable microneedles for delivering the composition. The device being having a length (L.sub.n) of each microneedle (3) that is less than or equal to 50 mm, and the microneedles include a skin-coloring cosmetic composition.