An apparatus including a first and second floatation members; a first and second handle devices fixed at first ends to the first and second floatation members, respectively; and an intermediate member. The first floatation member may be connected to the second floatation member by the intermediate member, so that there is a region between the first and second floatation members, and behind the intermediate member. The first and second handle devices may be configured to be situated below the surface of water, when the first and second floatation members are floating substantially parallel to and on the surface of the water. The apparatus may be configured so that a person can stand upright in the region and simultaneously grip the first and second handle devices, with left and right hands, respectively, while the first and second floatation members float, substantially parallel to and on the surface of the water.

A system and a method for applying a gradient of external compressive forces on the body of a person, in a manner analogous to how water exerts hydrostatic forces on the body of person immersed in water. The system may be a chair or a suit, comprising at least one of the following: one compression unit holding fluid around the person to exert a gradient of hydrostatic forces, at least one rigid or semi-rigid frame or a shell supporting the body and the compression units to support the pressure and off-loaded weight of the person and transfer the weight to an external support such as floor. Additionally, the system may contain additional means to reduce the frictional forces on the body surface and between various moving parts, and a means to modify pressure on the body of the person. The system and method is applicable for effecting physiological changes in the body such as increased diuresis and/or amniotic fluid levels, treat preeclampsia in pregnant women, reduce hypertension, shift fluids from interstitial space into intravascular compartment, increase venous return from lower extremities, reduce sympathetic tone and total peripheral resistance, reduce work load on the heart, reduce motion sickness and the like.

Adjustable seating devices for use in a hot tub may include multiple panels that move relative to one another and/or relative to the hot tub frame to adjust between positions. In some embodiments, one or more panels of the adjustable seating device may include jets. The adjustable seating devices may be adjusted manually, hydraulically, air-actuated, or electronically.

A hydrotherapy apparatus comprises a tank, the tank comprising a panel arranged to form a wall of the tank, and an inner frame arranged to have the panel mechanically fixed to an outer side thereof, without bonding, so as to form a watertight seal. The inner frame may comprise a lower portion in a base region of the tank and two struts extending upward therefrom. The tank may further comprise a lower fixing section arranged to be mechanically connected to an outer surface of the lower portion of the inner frame, with a lower edge region of the panel therebetween, and two side fixing sections extending upward and each arranged to be mechanically connected to an outer surface of a respective strut of the struts of the inner frame, with a respective side edge region of the panel therebetween.

A floating physical therapy device includes a frame and a harness. The frame includes an inner frame and an outer frame on the right and left side. The inner frame defines a patient area. The harness is attached to the inner frame such that it secures a patient to the device in a substantially upright position during use. The frame extends forwards and backwards, as well as to the left and right, of the patient area in order to provide stability in the water during normal use. The frame defines a trainer area immediately forward of the patient area where a therapist can have access to the patient during therapy sessions.

A method for inducing a cellular or hormonal response includes using a wave-generating device to emit sound waves through an individual's skin and onto a target organ, and vibrating the target organ or a portion thereof at a frequency in resonance with the sound waves. The sound waves have a frequency of less than 200 Megahertz (MHz).

Hair cells are exquisitely sensitive to auditory stimuli, but also to damage from a variety of sources including noise trauma and ototoxic drugs. Mammals cannot regenerate cochlear hair cells, while non-mammalian vertebrates exhibit robust regenerative capacity. To allow for the effective examination of this process disclosed herein is a design and method of utilizing a device capable of inducing acoustic trauma in the larval lateral line. The device uses ultrasonic transducers to induce cavitation wherein microbubbles form in the fluid medium inside the container. These bubbles oscillate and then implode, sending shockwaves into the fluid inside the well-plate containing the fish. The device emits a broadband signal with peak sound energy in the low-frequency range below 200 Hz, consistent with the response range of the larval lateral line.

An air pump for dispensing air massage therapy to a basin is provided. It may be used and with a disposal liner. The air pump includes a motor, an air generator, a mounting housing member, a gasket or seal, and an air nozzle. The air pump assembly includes the air pump and the air dispenser. The air pump preferably also includes a printed circuit board (PCB), a PCB cover, an LED light, an infrared light, and a contactless fluid sensor. The present invention is also directed to a pump apparatus that includes an air pump as described, a power source, and/or a control apparatus.

An ultrasonic irradiation apparatus includes an ultrasonic resonator capable of generating ultrasound, a driving unit configured to drive the ultrasonic resonator, a case holding the ultrasonic resonator and the driving unit, an acoustic matching layer provided between the ultrasonic resonator and the case, and an acoustic diffusion layer made of an ultrasound diffusing material configured to diffuse high intensity ultrasound emitted from the ultrasonic resonator and convert the high intensity ultrasound into low intensity ultrasound with low intensity per unit area and radiate in a large area. The ultrasonic resonator is a piezoelectric resonator, the ultrasound diffusing material of the acoustic diffusion layer is made of a metal material of an acoustic impedance of at least 40, and the acoustic diffusion layer is provided in at least one of inside of the acoustic matching layer, inside of the case, and outside of the case.

An aquatic exercise system may include a water tank including a watertight entrance that may allow a user enter and exit the water tank. The aquatic exercise system may further include a vertical watertight gate that may be disposed within the water tank and divide an interior of the water tank into a first tank portion and a second tank portion, a treadmill assembly that may be disposed within the second tank portion, and a water circulation mechanism that may be connected in fluid communication with the first tank portion and the second tank portion and transfer the water between the first tank portion and the second tank portion.