A cosmetic method for treating a skin of a person is presented, the method comprises inserting one or more needles to one or more depths into the skin of the person such that at least a tip of at least one needle of the one or more needles is deployed within a muscle layer of the person's skin; applying a negative DC voltage to the one or more needles, while a skin of the person is in contact with a positive electrode to form one or more closed circuits of DC current through the person's body; and providing the DC current for a pre-selected amount of time to damage and/or ablate muscles and/or muscle nerve cells in the muscle layer; thereby providing a skin treatment comprising reducing and/or smoothing wrinkles from the person's skin.

A needling device includes a plurality of needles forming a needle array, and a motor assembly for driving the needle array, where each of the plurality of needles includes a needle tip at one end, and tapers at a taper angle and along a taper length to a maximum needle diameter at the other end, and in use, a skin reference surface of the needling device is in contact with a subject's skin.

Some embodiments are directed to a skin treatment system that contains a laser generating device. A hydrogel patch may include a region, at a first side of the hydrogel patch, to be in contact with a person's skin. The region may contain an adsorbing medium (e.g., carbon black or any other substance that would have a similar effect) that, when receiving a laser beam from the laser generating device, results in Extracorporeal Shock Wave Therapy (“ESWT”) being applied to the person's skin to treat a dermatologic condition such as an epidermal or dermal tissue structure irregularity, cellulite, a stretch mark, a scar, scar-tissue, a hypertrophic scar, an acne scar, etc.

Disclosed herein are devices (e.g., needles (e.g., hollow needles), hollow staples, articles, apparatuses, and systems), kits, and methods for treating skin and skin conditions, for example, by promoting skin tightening, such as by reducing skin laxity and reducing tissue area or volume.

The present invention relates to methods and devices for skin tightening after incising or excising tissue portions from a subject. Exemplary methods and devices include tunable dressings having an adhesive layer and a regulatable layer or an un-stretched layer that responds to one or more external stimuli to contract or expand the dressing, where the contraction or expansion can be uniform or non-uniform.

A biopsy incision device (100) comprising a proximal side (101), to be arranged on a skin surface, and a distal side (102), said distal side (102) comprising a blade actuator (103) associated with at least one cutting blade (104), is provided. The blade actuator (103) and said at least one cutting blade (104) being suspended at a pivoting point (105) on said distal side (102), such that said blade actuator (103) and said at least one cutting blade (104) may pivot around a pivoting axis (A), such that said at least one cutting blade (104) may cut said skin surface.

Embodiments of an apparatus include a needle cartridge configured to attach to and interface with an actuating device. The needle cartridge includes a housing, a needle group assembly, and a fluid port. The housing forms a cavity and includes a first aperture and a second aperture opposite the first aperture. The needle group assembly includes a needle and a needle holder. The needle group assembly is configured to move in a reciprocating motion relative to the housing along an axis from the first aperture to the second aperture. During the reciprocating motion, the needle fully retracts into the cavity through the first aperture. The fluid port is integrated with the housing and includes a hollow projection forming a conduit and extending away from the housing. The fluid port includes a third aperture, wherein the fluid port is configured to interface with a fluid delivery system.

An exemplary hand-held, power operated rotary knife dermatome comprises a blade housing assembly and a depth gauge assembly. The blade housing assembly includes an annular blade housing and a blade lock ring for rotatably supporting an annular rotary knife blade. The annular blade housing includes a shield extending radially inwardly from a blade receiving body and including an inner wall defining a tissue directing surface, the tissue directing surface including a first tissue guide surface extending upwardly from a lower end of the shield, the first tissue guide surface extending substantially parallel to the blade housing axially extending center line. The blade receiving body includes an annular blade channel extending axially upwardly from a lower surface of the blade receiving body, a bearing surface axially spaced from a lower surface of the blade receiving body, and a threaded portion formed on the outer surface of the annular blade housing.

In a tool, a blade head configured to releasably connect to a handle includes a first molded article; and a second molded article that interfaces the first molded article; wherein the second molded article includes: a connector end portion that is integrated within the second molded article so that the connector end portion is seamless; the connector end portion has a channel therein; and the channel is configured to releasably connect about the handle.

Embodiments include methods, systems, and apparatus for identification, detection, and removal of cancerous cells from a patient. The apparatus includes an apparatus handle. The apparatus also includes a display including a pH measurement result. The apparatus also includes an apparatus tip including a reference electrode and a plurality of sensing surfaces, wherein each of the plurality of sensing surfaces is connected to a base of a bipolar junction transistor (BJT) device. The BJT device further includes a collector and an emitter. The apparatus also includes automation circuitry including a processing unit in communication with the apparatus tip and the display. The plurality of sensing surfaces includes a conducting material.