A treatment method for non-ablative tissue regeneration includes directing at least one laser pulse having a wavelength onto a tissue surface of a human or animal body, and controlling an energy delivery time t.sub.ed of the at least one laser pulse, during which the second half of the pulse energy is delivered, to be sufficiently short, so that, given the wavelength and thus a corresponding penetration depth δ of the at least one laser pulse, a thermal exposure time texp of the tissue surface is smaller than 900 microseconds. The thermal exposure time t.sub.exp of the tissue surface is defined as a time interval in which the temperature of the tissue surface is above T.sub.o + (T.sub.max - T.sub.o)/.sub.2, wherein T.sub.o defines the initial temperature of the tissue surface, before the laser pulse arrives, and T.sub.max is a maximal temperature of the tissue surface.

Embodiments include a system comprising a cannula assembly configured for rotational fractional resection (RFR). The cannula assembly includes at least one cannula configured for rotational operation and enclosed in a depth guide configured to control an insertion depth of the at least one cannula. The depth guide includes a vacuum chamber configured to maintain vacuum to evacuate resected tissue generated by the RFR.

Embodiments include a system comprising a carrier and a cannula assembly. The carrier includes a proximal end and a distal end, and the proximal end is configured to removeably couple to a remote console. The cannula assembly, which is configured to removeably couple to the distal end of the carrier, is configured for rotational fractional resection (RFR) and includes at least one cannula rotatably coupled to the carrier and enclosed in a depth guide configured to control an insertion depth of the at least one cannula. The depth guide includes a vacuum chamber configured to form vacuum to evacuate resected tissue generated by the RFR.

According to an aspect, there is provided a personal care device (52) for performing a light-based hair removal or photo-epilation operation on a body of a subject. The personal care device (52) comprises a housing (54) that includes a first window or opening (68), a light source configured to generate light to perform the light-based hair removal or photo-epilation operation, wherein the light source is arranged in the housing such that light emitted by the light source illuminates a part of the body, a receiving member in or on the housing (54) for receiving and retaining a consumer electronic device (62) in or on the personal care device (52), and an optical system (80) in the housing (54) for enabling an imaging unit (78) of a consumer electronic device (62) retained in the recess (60) to obtain images of a part of the body via the first window or opening (68).

According to an aspect, there is provided a personal care device (10) configured to perform an energy-based treatment on a portion of a body of a subject, the personal care device comprising: a main body portion including an energy source (58); and a cavity (32) having a primary opening (30), the cavity being configured to transmit treatment energy from the energy source to the primary opening, wherein the primary opening is configured to be placed against the body during use of the personal care device to define the portion of the body being treated by means of the treatment energy, and to define a volume of air within the cavity, wherein the cavity comprises a secondary opening (38) arranged at a distance from the primary opening and at a distance from the body when the primary opening is placed against the body and configured to permit a flow of air via the secondary opening and, thereby, a flow of air out of the cavity into the main body portion whilst treatment energy is transmitted from the energy source to the primary opening.

A treatment method for non-ablative tissue regeneration includes directing at least one laser pulse having a wavelength onto a tissue surface of a human or animal body, and controlling an energy delivery time t.sub.ed of the at least one laser pulse, during which the second half of the pulse energy is delivered, to be sufficiently short, so that, given the wavelength and thus a corresponding penetration depth δ of the at least one laser pulse, a thermal exposure time t.sub.exp of the tissue surface is smaller than 900 microseconds. The thermal exposure time t.sub.exp of the tissue surface is defined as a time interval in which the temperature of the tissue surface is above T.sub.o+(T.sub.max−T.sub.o)/2, wherein T.sub.o defines the initial temperature of the tissue surface, before the laser pulse arrives, and T.sub.max is a maximal temperature of the tissue surface.

The present disclosure provides a hair removing device, including: a reflector, a light source, a first light-transmitting body, a heat dissipation base and a refrigerating member. The light source is arranged inside the reflector and can emit light. The reflector can reflect light, such that the hair removing device can emit light to remove the hair from the skin. The first light-transmitting body and the reflector cooperatively define a cavity to receive the light source. A body of the light source is suspended in the cavity. Two sides of the heat dissipation base are thermally coupled to the reflector and the refrigerating member respectively.

A cooling device for removing heat from subcutaneous lipid-rich cells of a subject having skin is provided. The cooling device includes a plurality of cooling elements movable relative to each other to conform to the contour's of the subject's skin. The cooling elements have a plurality of controllable thermoelectric coolers. The cooling elements can be controlled to provide a time-varying cooling profile in a predetermined sequence, can be controlled to provide a spatial cooling profile in a selected pattern, or can be adjusted to maintain constant process parameters, or can be controlled to provide a combination thereof.

In part the disclosure relates to methods of treating acne, excessive sweating, unwanted hair, and/or unwanted blood vessels. The method may include providing a needle array comprising a plurality of needles; inserting plurality of needles into a dermis of a treatment area; detecting a location of an enlarged sebaceous gland; and energizing one or more of the plurality of needles to treat sebaceous glands, one or more sweat glands, vascular legions, unwanted hair follicles and/or unwanted blood vessels.

Embodiments include a method comprising determining histological factors at a target site of a subject, and determining parameters of a fractional resection based on the histological factors. The parameters include dimensionality of a fractional field, orientation of the fractional field, resection depth, and a vector of directed closure. The method includes configuring a cannula assembly for the fractional resection that includes a procedure to generate a fractional field at the target site by fractionally resecting tissue according to the parameters. The fractional resection includes applying a cannula array of the cannula assembly to the target site, and rotating at least one cannula of the cannula array to circumferentially incise and remove a plurality of skin plugs in the fractional field.