A force measurement system is disclosed herein. The force measurement system includes at least one user input device, a force measurement assembly configured to receive a subject, at least one visual display device, and one or more data processing devices operatively coupled to the user input device, the force measurement assembly, and the visual display device. The one or more data processing devices being programmed to receive the one or more input signals from the user input device based upon one or more selections by the user, the one or more selections including a scene movement setting and a force measurement assembly movement setting; display the one or more scenes on the output screen of the at least one visual display based upon the scene movement setting selected by the user; and control the force measurement assembly based upon the force measurement assembly movement setting selected by the user.

A wearable device and a method of operating the same are provided. The wearable device includes a shoe assembly, a plurality of pressure sensors, a processing circuit and an alarm module. The plurality of pressure sensors are disposed on the shoe assembly and configured to generate a plurality of pressure sensing values. The processing circuit is configured to calculate a center of gravity coordinate according to the plurality of pressure sensing values and coordinates of the plurality of pressure sensors, and generate a determination result according to the center of gravity coordinate. The alarm module is configured to output an alarm signal to perform an alarm function.

This disclosure relates to a device to mechanically and electrically connect with a touch screen computing device, such as a tablet computer. The device can include a platform that can be moved into and out of physical contact with a surface of a touch screen. During engagement with the surface, the moveable platform electrically interacts with the touch screen (e.g., via capacitive coupling) to enable detection by the touch screen of contact members (e.g., pegs) even in the absence of user contact with the pegs.

Systems, devices, and methods are provided for reducing a risk of unintentional falls in a subject that is at risk for falls. The device includes a sensor and a stimulator. The sensor is configured to be positioned adjacent a body portion of the user that changes orientation when the user sits and stands. The sensor is also configured to emit an activation signal when the user stands and to emit a deactivation signal when the user sits or lies down. The stimulator is in communication with the sensor and is configured to be positioned adjacent one of a calf and a lower back of the user. The stimulator is configured to vibrate at a frequency that stimulates proprioceptors of the user without inducing muscle contractions upon receipt of the activation signal from the sensor and to cease vibration upon receipt of the deactivation signal from the sensor.

A cognitive function evaluation device includes: an obtainment unit configured to obtain, as gait data, at least one of first data and second data, the first data indicating a sway amount of a body of a subject during walking in a first walking section from start of walking of the subject to a predetermined number of steps, and the second data indicating a sway amount of the body of the subject during walking in a second walking section in a double task state in which the subject is walking while doing a given assignment, the second walking section being after the first walking section; a calculation unit configured to calculate a feature value based on the gait data; an evaluation unit configured to evaluate a cognitive function of the subject, based on the feature value; and an output unit configured to output a result of evaluation by the evaluation unit.

A wireless system comprising a first wireless device and a second wireless device. The first wireless device is configured to operate with less than 15 milliamperes of current. The second wireless device has an internal power source and is configured to transmit one or more radio frequency signals to the first wireless device. The first wireless device is configured to receive the one or more radio frequency signals from the second wireless device. The first wireless device is configured to harvest energy from the one or more radio frequency signals. The first wireless device is enabled for operation after a predetermined amount of energy is harvested from the one or more radio frequency signals. A communication handshake occurs between the first and second wireless devices to indicate that the first wireless device is in communication with the second wireless device. The first wireless device is configured to perform at least one task from harvested energy.

An orthopedic system configured for pre-operative, intra-operative and post-operative assessment of a musculoskeletal system. The orthopedic system comprises a first screw, a second screw, a first device, a second device, and a computer. The first screw and the second screw are respectively coupled in a first bone and a second bone of a musculoskeletal system. The first and second screws each include electronic circuitry, one or more sensors, and an IMU. In one embodiment, a first device and a second device can be respectively located in proximity to the first and second screws. The first and second devices respectively transmit a radio frequency signal to the first and second screws. The first and second screws harvest a predetermined amount of energy and then are enabled to perform at least one task and an orderly shutdown. The computer receives measurement data from the first and second screws.

An orthopedic system configured for use in a pre-operative, intra-operative, and post-operative assessment. The orthopedic system comprises a first screw, a second screw, a first device, a second device, and a computer. The first device and the second device are respectively coupled to a first bone and a second bone of a musculoskeletal system. The first and second devices each include electronic circuitry, one or more sensors, and an IMU. A bracket, wrap, or sleeve can be used to hold the first and second devices to the musculoskeletal system. The first and second devices are configured to send measurement data to a computer. The first and second devices each have an antenna system. Electronic circuitry in the first or second devices are configured to harvest energy from a received radio frequency signal to recharge a battery to maintain operation.

A medical system comprising a patch device and a computer. The patch device is in communication with the computer. The patch device is configured for generating measurement data or providing a therapy. The patch device comprises electronic circuitry, a battery, an antenna system, one or more sensors, an IMU (inertial measurement unit), and a flexible enclosure. The antenna system can comprise a dual antenna formed on a dielectric substrate with a first antenna on a first side of the dielectric substrate and a second antenna on a second side of the dielectric substrate. The one or more sensors can comprise devices configured to provide measurement data or a therapy. The IMU is configured to measure position, movement, and trajectory of the patch device. The electronic circuitry is configured to harvest energy from one or more radio frequency signals received by the antenna system to recharge the battery.

A medical system comprising a first medical device, a second medical device, and a computer. The first medical device is configured to be placed beneath the dermis. The first medical device comprises an enclosure comprising non-electrically conductive material. A cap couples to the enclosure and is configured to seal the enclosure. The enclosure houses electronic circuitry configured to measure one or more parameter or provide a therapy. The cap couples to the ground of the electronic circuitry. The first medical device includes a dual band antenna. A first antenna is configured to operate within a first frequency band below 1 gigahertz. The second antenna is configured to operate at a frequency above 1 gigahertz. The second medical device is configured to transmit a radio frequency signal to the first medical device. The first medical device is configured to harvest the energy received from the radio frequency signal to enable the electronic circuitry and perform at least one task.