A gum numbing system includes a wristband configured to be attached to a user' wrist; an electronics housing; two or more finger coverings; two or more gum stimulation assemblies, the two or more gum stimulation assemblies detachably connected to the two or more finger coverings and the two or more gum stimulation assemblies to stimulate a patient's gum before a needle is inserted into the patient's gum; and two or more cables or wires, the two or more cables or wires connecting the electronics housing to the two or more gum stimulation assemblies. The electronics housing is integrated into the wristband or the top surface of the wristband.

An oral cavity washing device includes a nozzle and a pump that supplies a liquid to the nozzle. The nozzle has a nozzle flow passage and a reduced part that is disposed in an intermediate part of the nozzle flow passage and that is smaller in cross-sectional area than a rest of the nozzle flow passage. A first flow passage and a second flow passage that are in parallel to each other are disposed between the nozzle and the pump. The first flow passage has a first valve that causes the first flow passage to be opened only when the pump sucks the liquid. The second flow passage has a second valve that causes the second flow passage to be opened only during discharge performed by the pump.

An electric massage instrument can efficiently and easily control ultrasonic vibration function and infrared irradiation function to be simultaneously applied to a desired part. A single circuit board on which an electronic circuit having an ultrasonic vibration function and an infrared irradiation function is arranged in a gripping part gripped by hand, and irradiation parts of the infrared radiation function are provided on the contact part side of the tip end arranged to extend the circuit board. A housing forming a gripping part and a contact part is a single continuous housing made of synthetic resin, and the single circuit board extending to the tip end is fitted and fixed.

An electric massage instrument can efficiently and easily control ultrasonic vibration function and infrared irradiation function to be simultaneously applied to a desired part. A single circuit board on which an electronic circuit having an ultrasonic vibration function and an infrared irradiation function is arranged in a gripping part gripped by hand, and irradiation parts of the infrared radiation function are provided on the contact part side of the tip end arranged to extend the circuit board. A housing forming a gripping part and a contact part is a single continuous housing made of synthetic resin, and the single circuit board extending to the tip end is fitted and fixed.

A nozzle (12) for an oral irrigator device (10) having a guidance tip (34) with an orifice at one end, and a dynamic nozzle actuator (64) positioned within said guidance tip. The orifice (36) is configured to expel a fluid as one of a jet, a spray, or any combination thereof. The dynamic nozzle actuator (64) comprises at least one responsive material adapted for being energized and configured to implement at least one dynamic actuation of an effective channel (62) for dynamically influencing at least one of (i) a direction of fluid expelled from the orifice (36), (ii) an angle of fluid expelled from the orifice (36), (iii) a cross-sectional width of fluid expelled from the orifice (36), and (iv) any combination thereof.

A dental water jet is provided. The dental water jet may include a base unit, a reservoir supported by the base unit, a handle supported by the base unit, and a container covering an opening of the reservoir. The container may include a base supported by the reservoir and a lid movable relative to the base. The container may be configured to store one or more tips for use with the handle.

A vibrating teething device includes a silicon outer shell that is larger than a human mouth and having protrusions that can fit within a human infant mouth; a battery powered vibrator encased within an open cavity in the silicon outer shell; and a cap fastenened over the open cavity.

Control method for oscillating motor and osculating motor The control unit is further used for storing the set pulse parameters, and outputting alternating pulses with corresponding pulse widths and frequencies according to the set pulse parameters, so that the oscillating arm oscillates in an oscillation mode corresponding to the pulse parameters; wherein the oscillation mode comprises at least one of a full-amplitude oscillation mode, a sub-amplitude oscillation mode, an in-situ shaking mode and a composite oscillation mode, wherein the composite oscillation mode is generated by superposition of the full-amplitude oscillation mode and the in-situ shaking mode, or is generated by superposition of the sub-amplitude oscillation mode and the in-situ shaking mode.

Control method for oscillating motor and osculating motor The control unit is further used for storing the set pulse parameters, and outputting alternating pulses with corresponding pulse widths and frequencies according to the set pulse parameters, so that the oscillating arm oscillates in an oscillation mode corresponding to the pulse parameters; wherein the oscillation mode comprises at least one of a full-amplitude oscillation mode, a sub-amplitude oscillation mode, an in-situ shaking mode and a composite oscillation mode, wherein the composite oscillation mode is generated by superposition of the full-amplitude oscillation mode and the in-situ shaking mode, or is generated by superposition of the sub-amplitude oscillation mode and the in-situ shaking mode.

A head unit configured to couple to a handle of an electric toothbrush, wherein the handle generates vibrational energy transferred to the head unit, the head unit comprising a proximal end and a distal end; a base adjacent to the proximal end, an exterior wall extending from the proximal end to the distal end, wherein the exterior encases a plurality of hollow chambers, wherein each of the plurality of hollow chambers are separated by a scaffold, wherein the scaffold connects to the exterior wall; and a bulb having an exterior surface configured to transfer the vibrational energy to an object.