A surgical instrument for operating hip joint osteoarthritis in a human patient is provided. The hip joint comprises an acetabulum, being a part of the pelvic bone, and a caput femur, being the proximal part of the femoral bone. The surgical instrument is adapted to assist in the operating of the hip joint osteoarthritis from the abdominal side of the pelvic bone of said human patient.

There is provided a guard structure for use in a hair cutting device for cutting hair on a body of a subject, the guard structure comprising one or more guard elements, wherein the one or more guard elements are arranged such that in use in the hair cutting device the one or more guard elements space an optical waveguide in the hair cutting device from the skin of the subject, and wherein the one or more guard elements are shaped and/or formed to minimise or reduce the coupling of light from the optical waveguide to the guard structure.

A medical instrument includes two jaw members, at least one of which creates conditions of frustrated total internal reflection at a tissue-contacting surface when tissue is grasped between the two jaw members. The first jaw member may include an optical element having a tissue-contacting surface. The medical instrument also includes a light source that provides a light beam for sealing tissue. The light source is positioned so that the light beam is totally internally reflected from an interface between the tissue-contacting surface and air when tissue is not grasped by the jaw members. When tissue is grasped by the jaw members, at least a portion of the light beam is transmitted through that portion of the tissue-contacting surface that is in contact with the tissue. The light source may be movably coupled to a jaw member to scan the light beam and/or to change the incident angle based on optical properties of the tissue.

A pulsed laser skin treatment device is for laser induced optical breakdown of hair or skin tissue. A beam scanning system scans the beam to define a circular or arc path, using a rotated prism which implements a lateral shift to the beam. A focusing system at the output side of the beam scanning system focuses the incident light beam into a focal spot in the hair or skin tissue, and it rotates with the prism.

A light based skin treatment device comprises a laser light source for providing a pulsed incident light beam for treating skin by laser induced optical breakdown of hair or skin tissue. In one arrangement, a focusing system has a pre-focusing lens for increasing the convergence of the an incident light beam and a skin contact lens having convex light input and light exit surfaces. The focal spot position is controlled by adjusting a spacing between the pre-focusing lens and the skin contact lens. In another arrangement, there is an adjustable lens system before an adjustable focusing system for providing compensation for aberration in the adjustable focusing system.

A light based skin treatment device comprises a laser light source for providing a pulsed incident light beam for treating skin by laser induced optical breakdown of hair or skin tissue. In one arrangement, a focusing system has a pre-focusing lens for increasing the convergence of the an incident light beam and a skin contact lens having convex light input and light exit surfaces. The focal spot position is controlled by adjusting a spacing between the pre-focusing lens and the skin contact lens. In another arrangement, there is an adjustable lens system before an adjustable focusing system for providing compensation for aberration in the focusing system.

A laser and a minimally invasive dental surgical procedure using the laser to stimulate periodontal tissue formation.

A system comprises a teleoperated manipulator, a manually operated instrument, and a position sensor coupled to the manually operated instrument. The position sensor is configured to generate pose information for the manually operated instrument. The system further comprises a controller configured to map a pose of the manipulator to a fixed world reference frame based on three-dimensional pose information for the manipulator known internally within the system. The controller is further configured to map a pose of the manually operated instrument to the fixed world reference frame based on the pose information for the manually operated instrument.

A multi-function device for skin treatment is provided, which includes: a main body comprising a lower base, a cover coupled to an upper portion of the lower base, and a main case seated on the lower base; an IPL generator comprising: an IPL power unit comprising a main power case mounted on the main case, and a main power board housed in the main power case; an IPL coolant circulation device mounted on the main case; and an IPL connector attached to the main case, and coupled to: an IPL connection cable; a vacuum suction unit connected to an IPL handpiece and generating vacuum suction pressure; a suction cable connected to the vacuum suction unit; and a coolant connection cable connected to the IPL coolant circulation device; an IPL handpiece connected to the IPL connection cable and performing IPL treatment while being in contact with skin; a high frequency generator comprising a high frequency control board mounted on other side of the main case, and a high frequency power connected to the high frequency control board; a high frequency handpiece connected to one end of a high frequency cable that is connected to the high frequency control board, and performing high frequency treatment while being in contact with skin; and a low frequency stimulus handpiece comprising a cable connected to the main body, a handle connected to the cable, and a probe formed on an end of the handle and transmitting a low frequency stimulus to skin.

Embodiments of the invention include a compact, lightweight, hand-held laser treatment device that combines the emissions of two separate laser energy sources into a common optical pathway for improved therapeutic effect. In some embodiments, the device includes a housing having separate first and second laser sources disposed within the interior thereof. In some embodiments, the laser energy emissions from the two internal laser sources can be individually or concurrently transmitted to a delivery tip of the device via a laser transmission path also defined within the interior of the housing. In some embodiments, the structural and functional features of the first and second laser sources, in concert with the unique architecture of the laser transmission path, can be configured to provide efficacy and efficiency in the operation of the device within the spatial constraints of the lightweight, hand-held housing thereof.