Abstract: Various embodiments are provided herein for a medical device that has: a suction element with an elongated arm for placement between a check and the upper and lower teeth of a patient, and at least one suction inlet configured to suction fluid out of the oral cavity; an irrigation element with a second plate for placement between the upper and lower teeth of the second side of the oral cavity and one or more irrigation outlets configured to irrigate the oral cavity with fluid; a suction port that is fluidically coupled to the suction element for providing suctioning of the oral cavity during use; and an irrigation port that is fluidically coupled to the irrigation element for providing irrigation to the oral cavity during use.

Abstract: An oral hygiene device comprises a housing having an outside mouth portion and an inside mouth portion, at least one energy delivery element disposed in or on the inside mouth portion, configured to deliver energy to one or more teeth of a subject, a controller disposed in the outside mouth portion electrically connected to the at least one energy delivery element, an energy storage unit disposed in the outside mouth portion, and a sleeve removably connected to the inside mouth portion of the housing, the sleeve having upper and lower channels configured to accept the upper and lower teeth of the subject. A method of using an oral hygiene device and a method of administering an oral hygiene treatment are also described.

Abstract: A fan unit which in use forms part of a gases supply unit, the gases supply unit suitable for use as part of a system for providing heated humidified gases to a user, the fan unit having a casing that has an inlet aperture and an outlet passage, the outlet passage including an exit aperture, the fan unit also including a fan which is located inside the casing and which is adapted for connection to a motor to drive rotation of the fan in use, the fan drawing gases into the casing via the inlet aperture, and forcing these gases out of the casing via the outlet passage as a gases stream, the outlet passage further including at least one bypass vent hole independent of the exit aperture and arranged at an angle to the path of the gases stream through the outlet passage.

Abstract: A fan unit which in use forms part of a gases supply unit, the gases supply unit suitable for use as part of a system for providing heated humidified gases to a user, the fan unit having a casing that has an inlet aperture and an outlet passage, the outlet passage including an exit aperture, the fan unit also including a fan which is located inside the casing and which is adapted for connection to a motor to drive rotation of the fan in use, the fan drawing gases into the casing via the inlet aperture, and forcing these gases out of the casing via the outlet passage as a gases stream, the outlet passage further including at least one bypass vent hole independent of the exit aperture and arranged at an angle to the path of the gases stream through the outlet passage.