A hinge assembly includes a first hinge member including a first outer finger defining a first aperture, the first aperture including a first circumferential tapered surface, a second hinge member including a second outer finger defining a second aperture, the second aperture including a second circumferential tapered surface, and a fastener assembly including a first hub, a second hub, and a fastener, the first hub including a circumferential tapered surface that is complimentary to the first circumferential tapered surface, and the second hub including a circumferential tapered surface that is complimentary to the second circumferential tapered surface, the fastener assembly is configured to connect the first hinge member to the second hinge member.

According to an example embodiment of the present invention, there is provided an apparatus, comprising a first arm configured to accept a device, the first arm comprising a first counterweight arrangement, a second arm supporting the first arm by a coupling, and a base defining a curve and having the second arm mounted thereon, wherein the second arm is movable along the curve, the base configured to be mounted on a chair. The second arm may be furnished with a second counterweight arrangement.

A system for supporting and aligning a patient during a color alteration procedure includes a laser system that delivers a laser in a first direction. A control computer may be adjacent the laser system for controlling the laser system. The control computer system may include a user interface in a first plane substantially perpendicular to the first direction. The system may include a patient support structure having a patient support surface extending in a second direction substantially perpendicular to the first direction and configured to be adjustable to set a patient position or alignment relative to the laser system. Coarse adjustment hardware may be configured to cause automated and/or manual adjustments to the patient support surface in the first direction. Fine adjustment hardware may be configured to cause automated fine adjustments to the patient support surface in the first direction based on instructions received from the control computer.

The present invention is a method for performing on-site mobile dentistry utilizing a mobile dental chair and mobile dental lamp in combination. The mobile dental chair can be wheeled to a site and can elevate and recline a patient to a comfortable position for the patient and dentist or dental care provider. The mobile dental chair is driven onto and parked on the flat support base of mobile dental lamp, thereby holding the mobile dental lamp in a safe and stable position. The mobile dental lamp provides high intensity illumination suitable for providing modern dental care. The mobile dental lamp may be provided with removable wheels to aid in transporting the lamp to and from a site.

A convertible chair, for example, a hair transplantation chair that permits movement of the patient during a procedure while the patient's head remains substantially stationary. The chair may include a head support and a plurality of body supports that may be mounted on a base, or on a cradle movably attached to the base. The chair can be configured for a follicular unit harvesting procedure and it could be also converted into a hair implantation configuration for hair implantation procedure. The patient remains in the chair during the procedure with his head substantially stationary, while various parts of his body may be repositioned, for example, by rotation of the cradle. The chair may be automated, or assisted with pneumatics, motors, foot pumps and the like. The chair is particularly useful for assisting robotic hair transplantation procedures.

A neck collar can include a unitary foam pillow having extending from a first side first and second collar straps that extend opposite one another and terminate in respective distal ends separated by a space having a first distance in a relaxed state. The neck collar can also include an elastically deformable spring member embedded in the unitary foam pillow, the elastically deformable spring member being generally C-shaped in the relaxed state and having portions extending into both of the first and second collar straps. The elastically deformable spring member can be deformed such that the first distance is increased to a second distance.

An integrated bed for oriental medicine therapy according to an embodiment of the present invention is an integrated bed for oriental medicine therapy on which oriental medicine therapy for a patient is performed. The integrated bed for oriental medicine therapy comprises: a base bed body; a movable bed body which is coupled to the top of the base bed body so as to be rotatable about one side thereof so that the slope thereof with respect to the base bed body can be adjusted; and a driving part for generating a driving force for rotating the movable bed body with respect to the base bed body. The base bed body is partitioned into a plurality of spaces, and a therapy apparatus for treatment of a patient may be disposed in at least one space among the plurality of spaces.

A headrest adjustment system includes a tension block having a threaded aperture extending entirely through the tension block. The tension block is configured to be coupled to a chair. The headrest adjustment system also includes a screw configured to be moved through the threaded aperture along an axis, and a clamp lever pivotally coupled to the tension block. The clamp lever has an inclined surface. The axis intersects the inclined surface at an oblique angle. The headrest adjustment system also includes a headrest tension bracket configured to be coupled to the chair. The headrest tension bracket has a first end and a second end and the second end includes a flange. The clamp lever is configured to contact and press against the flange upon movement of the screw.

A convertible chair, for example, a hair transplantation chair that permits movement of the patient during a procedure while the patient's head remains substantially stationary. The chair may include a head support and a plurality of body supports that may be mounted on a base, or on a cradle movably attached to the base. The chair can be configured for a follicular unit harvesting procedure and it could be also converted into a hair implantation configuration for hair implantation procedure. The patient remains in the chair during the procedure with his head substantially stationary, while various parts of his body may be repositioned, for example, by rotation of the cradle. The chair may be automated, or assisted with pneumatics, motors, foot pumps and the like. The chair is particularly useful for assisting robotic hair transplantation procedures.

A dental chair cover kit is provided. The kit includes a dental chair cover having a cover body configured to cover a portion of a back rest of a dental chair, a headrest pocket configured to receive a headrest of the dental chair, an extendable neck member interconnecting the cover body to the headrest pocket, and a bib removably affixed to the cover body. The pocket includes an interior volume sized to receive the headrest of the dental chair and an opening for providing access to the interior volume. The extendable neck member includes an accordion fold biased to a first collapsed position and extendable to a second extended position for enabling extension of the cover body relative to the headrest pocket. The bib includes a strap for removably securing the bib to a user and a slot configured to removably receive and retain an item on the bib.