Various pump configurations for oral irrigators. In one example, an oral irrigator including a reservoir, a handle, a pump body is disclosed. The pump body includes a pump inlet, a wall defining a planar area, a pump outlet disposed adjacent to an edge of the planar area and extending through the wall into the pump body. The pump inlet and the pump outlet are in fluid communication with the reservoir and a first valve is disposed at least partially within the pump body and a second valve disposed at least partially within the pump body.

An apparatus may include one or more manifolds, each including a shell having an inner portion and an outer portion. Each shell may have a first set of outlets in a first wall and a second set of outlets in a second wall that approximately faces the first wall. Each manifold is shaped to accommodate a tooth. A rotating inlet joint, having an inlet channel and a rotating joint, may enable fluid flow into each manifold from the inlet channel at any angle relative to an axis of rotation defined by the rotating joint. In each manifold, the first set of outlets and the second set of outlets are oriented towards a tooth and/or gums associated with the tooth. The inner portion and the outer portion of each shell cooperate to direct fluid flow substantially horizontal to, and then substantially perpendicular to, the fluid flow exiting the inlet channel.

There is provided a tactile sensory device for use by a baby or child. The tactile sensory device comprises a pulsation actuator configured to, in use, produce a mechanical vibration having a pulsatile waveform that is the same, or substantially the same as, a pulsatile waveform of blood flowing in an umbilical cord.

A compact liquid-outlet system comprising a liquid pump device, a liquid-inlet flow channel, and a liquid-outlet flow channel and an oral cleaning method. The liquid pump device comprises a liquid pump cavity, a piston slidably disposed in the liquid pump cavity, and a piston rod. The piston rod extends through the liquid pump cavity in a liquid-tight manner and is connected to the piston. The piston divides a pump chamber of the liquid pump cavity into a rod chamber and a rodless chamber. The piston comprises a liquid-outlet one-way valve allowing only liquid to flow from the rod chamber to the rodless chamber. The liquid-inlet flow channel communicates with the rod chamber through a liquid-inlet one-way valve. The liquid-outlet flow channel communicates with the rodless chamber. This system eliminates the need of extra space for installing the liquid-outlet one-way valve, resulting in a more compact structure.

A spherical, bone or other shaped pet health device includes a 0.5% to 5% thermoplastic resin casing, equipped with a dual wavelength LED system emitting blue (400-460 nm) and red (600-670 nm) light. The device incorporates a printed circuit board (PCB) with LEDs, a voltage regulator, and a motion sensor which activates the LEDs upon impact, with light emission lasting between 4-6 minutes. Some embodiments include a capacitive touch sensor or pressure sensor to trigger the LED system. The device may be charged via USB cable or completely sealed and charged only via induction or have a removable water resistant inner compartment with removable batteries. The outer can feature texture, scent infusion and indentations for flavor agents and health supplements such as probiotics. Additional embodiments may include a vibration motor and conductive fillers in the casing to enhance signal transmission for various health promoting applications.

A spherical, bone or other shaped pet health device includes a 0.5% to 5% thermoplastic resin casing, equipped with a dual wavelength LED system emitting blue (400-460 nm) and red (600-670 nm) light. The device incorporates a printed circuit board (PCB) with LEDs, a voltage regulator, and a motion sensor which activates the LEDs upon impact, with light emission lasting between 4-6 minutes. Some embodiments include a capacitive touch sensor or pressure sensor to trigger the LED system. The device may be charged via USB cable or completely sealed and charged only via induction or have a removable water resistant inner compartment with removable batteries. The outer can feature texture, scent infusion and indentations for flavor agents and health supplements such as probiotics. Additional embodiments may include a vibration motor and conductive fillers in the casing to enhance signal transmission for various health promoting applications.

The present disclosure is directed to systems and methods for electronic control of an operating level of an oral irrigator, particularly when flow from the oral irrigator is paused. Methods for controlling an operational level include: determining an operational level of the oral irrigator, including whether the operational level is a standby mode; receiving sensor data from one or more sensors; determining whether a key sensor indicator is above, below, or at a threshold. If the key sensor indicator is above a threshold, the operational level is changed to standby mode. If the key sensor indicator is at or below the threshold, the operational level remains at the current level. If the key sensor indicator is below the threshold, and the current operational level is the standby mode, the operational level is changed to the operational level set before entering standby mode.

The present invention relates to a light irradiation hygiene device with a PCB directly assembled into the main body. The device includes a main body housing the handle and head sections, a PCB configured to match the main body's shape, a power button in the handle section, a light irradiation unit with multiple light sources, a vibration motor attached via soldering, and a toothbrush head plate. The structure reduces noise and improves vibration stability, increasing convenience for users. The one-piece structure of the PCB enhances cost competitiveness, assembly efficiency, and durability, while minimizing failure points due to the removal of connecting parts. Attaching the vibration motor to the PCB, which matches the main body's shape, reduces the number of vibrating parts, decreasing noise, and simplifying the manufacturing process, leading to cost reduction and improved productivity.

The present invention relates to a light irradiation hygiene device with a PCB directly assembled into the main body. The device includes a main body housing the handle and head sections, a PCB configured to match the main body's shape, a power button in the handle section, a light irradiation unit with multiple light sources, a vibration motor attached via soldering, and a toothbrush head plate. The structure reduces noise and improves vibration stability, increasing convenience for users. The one-piece structure of the PCB enhances cost competitiveness, assembly efficiency, and durability, while minimizing failure points due to the removal of connecting parts. Attaching the vibration motor to the PCB, which matches the main body's shape, reduces the number of vibrating parts, decreasing noise, and simplifying the manufacturing process, leading to cost reduction and improved productivity.

An oral irrigator including a reservoir, a handle, a tip, a pump, a motor connected to the pump and configured to selectively actuate the pump, a processing element, and a signal generator, wherein during operation in a normal mode, the signal generator provides a first control signal to the motor causing the pump to cycle at a first pulse rate having a first flow rate over a first time duration and has a normal magnitude and a normal frequency, and wherein during operation in a massage mode, the signal generator provides a second control signal to the motor, the second control signal having a massage magnitude below the normal magnitude and a massage frequency longer than the normal frequency causing the pump to cycle at a second pulse rate and having a second flow rate over a second time duration.