A pneumatic module has an air passage formed therein, including an air inlet to receive a source of pressurized air, a first subsystem with an air splitter in fluid communication with the air inlet, a second subsystem, and a third subsystem. The air splitter is configured to create two unequal air pressure fields to deflect an airflow from the air inlet to the second subsystem. The second subsystem is configured to create two unequal air pressure fields to deflect the airflow toward a first air bladder to inflate the first air bladder, and when the first air bladder reaches a first threshold air pressure, a first backpressure from the first air bladder causes the second subsystem to switch and deflect the air flow to a second air bladder. A second backpressure causes the air splitter to switch and deflect the airflow from the second subsystem to the third subsystem.

A pneumatic module has an air passage formed therein, including an air inlet to receive a source of pressurized air, a first subsystem with an air splitter in fluid communication with the air inlet, a second subsystem, and a third subsystem. The air splitter is configured to create two unequal air pressure fields to deflect an airflow from the air inlet to the second subsystem. The second subsystem is configured to create two unequal air pressure fields to deflect the airflow toward a first air bladder to inflate the first air bladder, and when the first air bladder reaches a first threshold air pressure, a first backpressure from the first air bladder causes the second subsystem to switch and deflect the air flow to a second air bladder. A second backpressure causes the air splitter to switch and deflect the airflow from the second subsystem to the third subsystem.

A pneumatic system includes a fluidic switching module, an air connection inlet configured for connection to a source of pressurized air, a plurality of air connection outlets each in fluid communication with the air connection inlet, a first cascading subsystem downstream from and in fluid communication with the air connection inlet and configured to receive a pressurized airflow from the air connection inlet, a second cascading subsystem downstream from and in fluid communication with the first cascading subsystem, and a third cascading subsystem downstream from and in fluid communication with the first cascading subsystem. The fluidic switching module is configured to cyclically and sequentially direct the pressurized airflow between the plurality of air connection outlets without any moving parts or external controls.

A wound therapy device and method includes a skin contacting element, a reactor, and a reactor housing element. The skin contacting element is configured for covering an associated tissue site, the reactor for creating a pressure condition at the associated tissue site upon actuation thereof, and the reactor housing element for accommodating the reactor. The skin contacting element has a skin contacting side and an interface side, which is opposite the skin contacting side. The reactor housing element has a lower affixing side and an upper side, which is opposite the lower affixing side.

A device for providing tactile stimulation of a subject via a pulse of compressible fluid, typically for medical diagnostic and therapeutic applications. The device preferably includes a high pressure fluid source and a low pressure fluid source. A pressure valve selectively connects the pressure sources to an outlet conduit. The outlet conduit includes an applicator for directing pulses against the skin of a subject. The pulses may be applied via one applicator or a plurality of applicators, and may be applied in one pattern or several patterns at various application sites. A method of providing tactile stimulation is also disclosed.

A pneumatic system includes a passage to discharge compressed air and a sound attenuator including a first chamber in fluid communication with the passage and defined by a first wall through which the passage opens into the first chamber, a first surface of a second wall spaced from and opposite the first wall, and a sidewall extending between the first and second walls. The first chamber has a volume and includes a first opening in the sidewall. A second chamber is in fluid communication with the first opening and partially surrounds the first chamber. The second chamber is partially defined by a second surface of the second wall opposite the first surface and by the sidewall, and the second chamber has a volume and includes a second opening to exhaust air from the second chamber. The volume of the first chamber is less than that of the second chamber.

A massage device with knocking and sucking functions includes a housing including a driving member, a telescopic member connected with the driving member in a transmission way, and a through-hole formed at an end thereof so that the telescopic member can pass through the through-hole to be exposed outside; a soft massaging member surrounding around the through-hole and connected with the telescopic member; a soft suction nozzle detachably connected with the soft massaging member and formed a chamber with an opening therebetween, when removing the soft suction nozzle, the driving member drives the telescopic member to reciprocate up and down to drive the soft massaging member to reciprocate up and down, to knocking massage the human body; when connecting the soft suction nozzle with the soft massaging member, the soft massaging member reciprocates up and down to squeeze air in the chamber, to sucking massage the human body.

In a piston sucking-type massager disclosed in the present invention, a massage port of a straight-cylinder piston chamber is in contact with the human skin and then closed, a push-pull driving device drives a push-pull member to reciprocate and translate linearly, and a piston follows the action of the push-pull member to reciprocate and translate linearly in the straight-cylinder piston chamber, so that positive and negative pressures are formed in a space between the manage port of the straight-cylinder piston chamber and one end surface of the piston, for sucking massage.

A device comprises a treatment system to treat scalp or hair; one or more sensors configured to detect at least one spatial condition selected from device contact with scalp or hair, device distance to scalp or hair, and device location in relation to scalp or hair; a controller configured to send instructions to adjust the treatment system based on the detected spatial condition of the device.

A therapeutic device for treating one or more conditions associated with a user's nasal cavities, sinuses, and/or ear canals includes a housing having an opening, an acoustic vibrator within the housing that is operable to provide an acoustic vibration to the user, a fan within the housing that is operable to provide a pressure to the user and a power supply that provides power to the acoustic vibrator and the fan. A mask is connected to the housing at the opening and includes a nasal interface appliable around the nose of the user, a nasal chamber in which the user's nostrils are located and an aperture through which the fan delivers the pressure.