Described are oral phlegm extraction systems having a mouth insertion apparatus, a misting apparatus, and a suction apparatus. The mouth insertion apparatus includes a bite platform with at least one suction aperture positioned on a proximal end of the platform and directed toward an entrance to the patient's throat. A tongue positioner may also be included with at least one suction aperture positioned on a proximal end of the tongue positioner and directed toward an entrance to the patient's throat. The mouth insertion apparatus is also shaped to direct a flow of moist gas toward the entrance to the patient's throat.

The present disclosure provides a headrest for therapeutic environments which is able to adapt and conform to the individual anatomic shape of a patient's head to provide firm support in a desired position for the duration of a therapy session, and which is able to maintain that shape to provide consistent positioning of a patient's head across multiple sessions. The headrest comprises an adjustable support element coupled to a headrest shell, with a headrest cushion being affixed to the shell that can conform to the shape of the patient's head and neck. The cushion is either a vacuum cushion or formed of a memory material, such that the deformation caused by supporting the patient can be reproduced if necessary.

Embodiments of the present application provide a dental robot and an oral navigation method. The dental robot comprises a tandem positioning arm, wherein the tandem positioning arm comprises a pedestal, several positioning arms and a jacket, and the jacket is configured to clamp surgical instruments; the pedestal, the several positioning arms and the jacket are connected in series in sequence by rotary joints; a joint angle measuring device is mounted at each of the rotary joints. According to the dental robot and the oral navigation method provided by the present application, by the lightweight of the tandem positioning arm, the volume and weight of the dental robot system are reduced, which improves the practicality of the dental robot in surgical operations.

A massage chair comprises a frame structure, and an integrated torso support and a seat connected to the frame structure, which may be collapsible. The integrated torso support includes (a) an annular frame portion having a frame opening sized to accommodate a protruding abdomen of a pregnant or obese person, and (b) annular padding configured for removable attachment to the annular frame portion. The annular padding defines an abdominal opening sized to match or reduce the size of the frame opening. The seat is configured with a width sufficient to support a pregnant or obese person in a seated position. A massage chair transport system is also described.

A headrest for a mobile patient transport apparatus is arranged to support a patient during minor surgical procedures. The headrest includes a neck supporting portion which is hinged to a backrest of the apparatus, and a head supporting portion which is hinged to the neck supporting portion. Each of the neck supporting portion and head supporting portion is connected to a respective actuator. The actuators can be independently operated to cause pivoting of the neck supporting portion relative to the backrest and/or pivoting of the head supporting portion relative to the neck supporting portion.

A jaw support device for supporting a patient's jaw during dental procedures. More specifically, a jaw support device comprising a headrest mount assembly, a split sphere assembly having a first locking mechanism, a ball joint assembly having a second locking mechanism, and a jaw rest assembly. The headrest mount assembly may attach to a dental chair headrest. The split sphere assembly may have a split sphere ball and an arm extension and may attach to the headrest mount assembly. Further, the split sphere assembly's first locking mechanism may lock the arm extension in place. The ball joint assembly may have a ball joint ball and may connect to the arm extension of the split sphere assembly. The jaw rest assembly may attach to the ball joint assembly and may be locked in place when the second locking mechanism is activated.