The present invention relates to a cosmetic process for a keratin substance such as the skin or the lips, comprising the steps of: applying onto the keratin substance at least one composition comprising at least one coloring agent; and applying onto the keratin substance, to which the composition has been applied, a microneedle sheet comprising a substrate sheet and a plurality of microneedles on the substrate sheet such that the microneedles are capable of penetrating into the keratin substance. According to the present invention, microneedles can penetrate into a keratin substance to provide the keratin substance with long lasting and uniform color effects.

A micropigmentation device and related method of use may be used for micropigmentation and other similar procedures. The micropigmentation device may include two needle tips, which may optionally each be part of a separate needle or may be tips on a single component, such as a single needle. In other embodiments, the device may include pairings of needle tips, such as two components with each having a plurality of needle tips or a plurality of needles grouped into two groupings of needle tips. The device may be used to simulate natural human hair follicles as they grow in pairs.

An injector guard and related method of use may be used for micropigmentation and other similar procedures. The guard may attach to a removable or disposable component, such as an ink cartridge, or may connect to a reusable device, such as a tattoo gun. The guard may be also unitary with the ink cartridge, needle, or micropigmentation device. It may be disposable or may be reusable. It may include a leg which may be used to aid in controlling the position of the micropigmentation tool as well as the depth of penetration of the needle into the dermis, as well as, optionally, the angle of the instrument. The guard may also include a coupling body, which may attach to an ink cartridge or other device or component by a press-fit, snap-fit, friction fit, threading, or other means.

A handheld tattoo device comprises an elongated body comprising a grip section and an upper section above the grip section. The grip section comprises a coupling end configured to removably couple with a needle module comprising one or more needles. The upper section comprises a needle actuator for actuating the one or more needles through a shaft extending through the grip section, and a battery power source for supplying electrical power to the needle actuator. The device also comprises a user interface on the upper section, the user interface comprising a display and a touch sensor for detecting finger gestures of a user; and a control circuitry in the upper section for controlling the power supplied to the actuator by the battery power source based on user input received through the user interface.

A needle module for a drive-controlled handheld unit for repeatedly piercing human or animal skin, comprising a housing; a needle holder, which can be moved back and forth in the housing in a longitudinal direction of the housing; a piercing device on the needle holder, which can be moved, on account of the movement of the needle holder, between a proximal and a distal position, in which a piercing tip of the piercing device is arranged outside the housing; a coupling component, which is coupled to the needle holder in such a way that a driving movement provided with a repetition frequency by a drive device that can be coupled to the coupling component can be introduced onto the needle holder; and a damping component, which is arranged between the needle holder and the coupling component and is configured to damp a transfer of force therebetween.

Tattooing, or delivery of pigment into the skin, producing temporary or permanent markings on the skin, is practiced for aesthetic and practical purposes. Human and mechanical control of tattooing may be augmented by sensors, coupled to an adaptive control system capable of improving the results, and relieving demands on the operator.

A method of forming an implant in the tissue can include: providing an injectable composition having a neat liquid carrier, wherein the neat liquid carrier is substantially liquid at room temperature and/or about body temperature; and injecting the neat liquid solution into the tissue at the rate of 10-12000 injections per minute and/or at an amount of 1.0E-02 ml to 1.0E-16 ml per needle per injection. The neat liquid carrier can be polymeric or non-polymeric. The neat liquid carrier can be biodegradable. The neat liquid carrier can include a viscosity-modifying agent. The injecting can form an implant with area greater than or equal to 5 mm.sup.2. The neat liquid carrier can be injected at a depth of 10 microns to 5 mm. The neat liquid solution can include a drug or other agent.

An automated system featuring a system controller, an oscillation drive, a linear drive, a rotational drive, a flexible drive shaft, a handpiece, and a disposable cartridge used for the application or removal of tattoos and for use in skin treatment such as needling, skin tightening, aesthetic microneedling, and superficial dermabrasion procedures. A needle cartridge or plurality of blades may be couplable in modular configurations within the disposable cartridge. The automated system may also have a plurality of blades or needle bundles in various configurations couplable to the disposable cartridge selected in accordance to the skin treatment performed. The system may also include a physically integrated and functionally automated fluid pump with associated disposable fluid container and disposable feed tube. Alternately, the fluid pump may stand physically and functionally independent of the automated system.

An oscillating apparatus, such as a tattooing apparatus applying an electric motor such as a linear motor, and a first sensor and a controller. A method for controlling an oscillating apparatus such as a tattooing apparatus, includes a controller and various sensors to control, among other things, the position, velocity and acceleration of a needle either directly or via a needle connector.

A tattoo machine includes a tubular housing and an electromagnetic assembly disposed in the tubular housing. The electromagnetic assembly includes a first through-hole extending axially therethrough. A magnet unit is disposed in the first through-hole and includes a second through-hole extending axially therethrough. A core bar extends through the second through-hole and includes a tattoo needle on an end thereof. The tattoo needle can be actuated by the magnet unit to an exposed position outside of a bottom end of the tubular housing. An electric power transmission unit is electrically connected to the electromagnetic assembly. The electric power transmission unit can be in electrical connection with a power grid or a power supply and can output alternating current to the electromagnetic assembly.