Disclosed herein are apparatuses, systems, kits, and methods for treating skin, such as skin tightening or for treating diseases, disorders, and conditions that would benefit from tissue area or volume reduction, skin restoration, skin tightening, skin lifting, and/or skin repositioning and/or for generally improving skin function or appearance (e.g., the removal of unwanted skin features or irregularities such as sebaceous glands, sweat glands, hair follicles, necrosis, and fibrosis). Such apparatuses, systems, kits, and methods comprise an apparatus having a handheld main body and a detachably attachable tip comprising one or more needles.

Device and method for implantation of hair grafts into the scalp of a patient. In the device, a cross-sectional shape of a rod riding in an implantation needle is configured with respect to the needle to communicate a vacuum in a chamber anterior to the needle forward to an interior of the needle, thereby facilitating loading of the hair graft into the device by direct-to-needle aspiration of the hair graft.

An apparatus for determining defective hair follicles includes an image acquiring unit for acquiring an image of a follicle and a hair for each follicle separated from a scalp of an alopecic patient in an incisional hair transplant or each follicle directly extracted from an alopecic patient in a non-incisional hair transplant, an image processing unit for extracting an outline pattern of the image of the follicle and the hair by performing a contour detection process or an edge detection process on the image, a follicle shape database for storing hair pixel patterns related to various shapes of hairs and follicle pixel patterns related to various shapes of follicles, and a follicle determining unit for determining whether a follicle is normal follicle or defective follicle by comparing the outline pattern of the image with the hair pixel patterns and follicle pixel patterns stored in the follicle shape database.

Embodiments include devices and methods configured to fractionally resect skin and/or fat. Fractional resection is applied as a stand-alone procedure in anatomical areas that are off-limits to conventional plastic surgery due to the poor tradeoff between the visibility of the incisional scar and amount of enhancement obtained. Fractional resection is also applied as an adjunct to established plastic surgery procedures such as liposuction, and is employed to significantly reduce the length of incisions required for a particular application. The shortening of incisions has application in both the aesthetic and reconstructive realms of plastic surgery.

Systems, instruments, methods, and compositions are described involving removing a portion of the epidermis within a donor site on a subject, and harvesting dermal plugs within the donor site. An injectable filler is formed by mincing the dermal plugs. The injectable filler is configured for injecting into a recipient site on the subject.

A hair follicle implant device includes a needle holding assembly configured to hold a plurality of needles and a needle guide slidably coupled thereto and configured to provide a skin stop surface while guiding the plurality needles. A plurality of pistons is configured to slide within a respective one of the plurality of needles. A piston base is slidably coupled to the needle holding assembly and is configured to hold the pistons to slide within the plurality of needles when actuated during implantation. A spring, carried between the needle holding assembly and the piston base, is configured to bias the piston base in a retracted position, wherein the spring is offset from a central axis of the piston base. The needle holder holds the plurality of needles in the staggered arrangement offset from the central axis of the piston base.

According to an aspect, there is provided an apparatus for use with a treatment device for providing feedback to a user on a treatment operation performed on a body part of a subject, wherein the treatment device is configured to apply light pulses to skin of the body part to perform the treatment operation, wherein a light pulse applied to the skin treats an area of the skin. The apparatus comprises a processing unit configured to receive a first measurement signal from a first sensor, the first measurement signal comprising information about positions and/or movements of the treatment device over time; for a light pulse previously applied by the treatment device to the body part during the treatment operation, process the first measurement signal to estimate a previous treatment position as a position of the treatment device relative to the body part when the light pulse was generated; for the previously applied light pulse and based on the estimated previous treatment position, estimate a previous treatment area for the light pulse corresponding to the area of skin of the body part that the light pulse was applied to when the treatment device was at the previous treatment position; process the first measurement signal to estimate a current position of the treatment device relative to the body part; based on the estimated current position of the treatment device, estimate a current treatment area corresponding to an area of skin that the treatment device would apply a light pulse to while in the current position; and generate a feedback control signal for a feedback unit, wherein the feedback control signal is configured to cause the feedback unit to generate feedback indicating whether the current treatment area corresponds, or substantially corresponds, to a previous treatment area.

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.

A hair-removal apparatus is provided, which includes a main body, a housing, a first air-inlet channel and a second air-inlet channel. The main body is accommodated in the housing and includes a heat-generating assembly and a refrigerating assembly. The first air-inlet channel communicates the refrigerating assembly with ambiance to absorb external air and dissipate heat from the refrigerating assembly, and the second air-inlet channel communicates the heat-generating assembly with ambiance to absorb external air and dissipate heat from the heat-generating assembly. The hair-removal apparatus is provided with two independent air inlet channels, which effectively enhances the heat dissipation performance of the hair-removal apparatus and improves the durability and safety of the hair-removal apparatus.

A cell transplanting kit includes a transplant including a cell group and a cell transplanting device. The cell transplanting device includes a needle-shaped portion that extends in a shape of a tube, and an aspiration portion configured to aspirate an interior of the needle-shaped portion. The needle-shaped portion is configured to attract the transplant by aspiration by the aspiration portion and take the transplant into the interior. The aspiration portion is configured to create an aspiration pressure in a range of −100 kPa to −0.1 kPa. The transplant includes a protection portion in a form of a gel covering at least a part of the cell group. The transplant has an outer diameter that is greater than or equal to a minimum value of the inner diameter of the needle-shaped portion. The protection portion has a jelly strength of greater than or equal to 100 g.