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 new on chip system, named Acoustic Gym, to apply a surface acoustic wave (SAW) has been developed to control the swimming exercise of a large number of small animals such as C. elegans and Zebra fish, at desired intensities and durations. The SAW device consists of a circular chamber filled with fluid, which is placed in the center between a pair of offset interdigital transducers (IDTs) that are deposited on a piezoelectric substrate. Upon actuation from a radio frequency (RF) source, the SAW is generated and propagates along the substrate towards the microchamber. Once the SAW reaches the chamber, it induces an acoustic streaming in the fluid inside the chamber to stimulate swimming exercise of small animals. The streaming velocity can be precisely controlled via the RF signal input power, thus regulating the duration and intensity of exercise of the animals.

The invention relates to an apparatus for treatment with pressure waves, comprising: a projectile (8) guided along a movement path, an applicator (7) at one end of the movement path, pneumatic means for application of pressure to the projectile (8) for the purpose of movement, wherein the projectile (8) is adapted for striking onto the applicator (7) for generating the pressure waves, which pneumatic means comprises a double valve means (1, 2) for application of pressure to the projectile (8) towards the applicator (6) during a first activation time and in the reverse direction during a second activation time, and a control means (54), wherein the apparatus is adapted to maintain a separation time between the activation times and to control an impact speed by means of the separation time.

A dynamic counterbalance system is provided. The dynamic counterbalance system can include a compound pulley system and an adjustment arm. The compound pulley system can include a frame, a spring, a variable radius pulley, a plurality of mounted pulleys, a plurality of moveable pulleys, and a plurality of lines. The adjustment arm can include a mountable support, a spool support, a spool, an arm inner support, a rod support, an extended rod, a rod end cap, a traveling pulley, a dynamic pulley, and a plurality of lines.

Apparatus for treatment with pressure waves, comprising: a projectile guided along the movement path, an applicator and a stop, pneumatic means for application of pressure to the projectile for the purpose of movement, wherein the projectile is adapted for striking onto the applicator, which pneumatic means comprises a double valve means for application of pressure to the projectile towards the applicator during a first activation time and in the reverse direction during a second activation time, and a control means adapted, after a partial return movement in a second activation time, to end this second activation time, to start a first activation time and, after only a part of the movement path, to reverse the movement from a return movement into a forward movement.

A skeletal distraction device for a four-limbed vertebrate, and particularly a human, comprises a first brace, a second brace and a load transfer mechanism. The first brace is adapted to contact a first body portion of the vertebrate while the second brace is adapted to contact a second body portion of the vertebrate. The load transfer mechanism, which connects the first brace to the second brace, comprises a first spring, a second spring and a preload adjustment. A first spring preload is adjusted through the preload adjuster. The second spring is operative to transfer a second load between the first brace and the second brace along a second axis perpendicular to the first axis. When the vertebrate wears the skeletal distraction device, the first spring is operative to transfer a first load along the first axis between the first brace and the second brace by adjusting the preload.