Abstract:
A measurement device (10) for quantitatively measuring stiffness, torque or range of motion (ROM) around the joint axis of the ankle-foot complex of a lower limb in the sagittal and coronal planes, the device (10) comprising: a plate (13, 21) for placement of the ankle-foot complex, the plate (13, 21) operatively connected to an actuator (14, 16) for manual actuation; an angular measurement device (12, 17) to measure an angular position of the ankle-foot complex; a torquemeter (11) to measure resistance torque of the ankle-foot complex; an electromyograph (48) to monitor muscular activity of muscles of the lower limb; and computer software to record the measured angular position, resistance torque of the ankle-foot complex and EMG of the lower limb muscles.
Abstract:
A system for monitoring strain as an indicator of biological conditions, such as spinal fusion, glucose levels, spinal loading, and heart rate. The system includes an inter-digitated capacitor sensor, and RF transmitter, and an associated antenna, all of which are microminiature or microscopic in size and can be implanted in a biological host such as a human or animal. An inductively coupled power supply is also employed to avoid the need for implantation of chemical batteries. Power is provided to the sensor and transmitter, and data is transmitted from the sensor, when an external receiving device, such as a handheld RF ID type receiver, is placed proximate the location of the implanted sensor, transmitter and inductively coupled power supply. The implanted sensor, transmitter and inductively coupled power supply can be left in place permanently or removed when desired.
Abstract:
The invention relates to a flexible sheet which includes cavities that are intercommunicated by a captive fluid of a known viscosity and which is positioned as an insole beneath the sole of the foot. The upper surface of the aforementioned cavities receives plantar pressures, thereby acquiring a corresponding dimpled appearance indicating those areas receiving greater or less plantar pressure. The gradual movement of the fluid through the hollow closed circuit is caused mainly by the resistance to the fluid provided by two-way an one-way valves and alternatively by the resistance provided by the cross-section and length of the conduits to the viscosity of the fluid. In this way, as the foot oscillates the cavities remain the same. The invention is mainly intended for obtaining approximate plantar pressure measurements by observing the upper surface of the adjoining cavities after a sufficient number of steps, producing the mould or negative and saving a record of same, and producing the final insole.
Abstract:
Active-response golf shoes are disclosed. The golf shoes include a plurality of sensors, a controller, and at least one active-response element. The sensor and controller operate to rapidly determine if a golfer is walking or swinging a golf club. Once this determination is made the controller and active-response element rapidly change the shoe's characteristics. If the controller determines that the golfer is walking, the shoe provides a soft and flexible walking platform. If the controller determines that the golfer is swinging, the shoe morphs or changes automatically to provide a stable hitting platform. The controller senses various predetermined conditions such as pressure of the user's foot to determine whether the golfer is walking or swinging. The active-response element is a lateral adjuster having an upper bracket located in the laces area and a lower bracket affixed to the side of the sole, brackets supporting a plurality of electrostrictive polymer bands.
Abstract:
A device for acquiring data and diagnosing a musculoskeletal injury. The device includes a semi-flexible housing, at least one ultrasonic transducer, a positional localizer, and a transmission system. The semi-flexible housing is positioned proximate a portion of the musculoskeletal system of a patient and supports the at least one ultrasonic transducer and the positional localizer. The at least one ultrasonic transducer is configured to acquire an ultrasonic data indicative of a bone surface. The positional localizer is positioned at a select location relative to the at least one ultrasonic transducer and tracks movement of the housing. The transmission system transmits the ultrasonic data of the at least one ultrasonic transducer and the movement data of the positional localizer to a data analyzer for analysis and diagnosis.
Abstract:
Systems, devices, and methods for measuring an under foot load profile of a patient during a period of partial weight bearing are described. The system may include a walking boot cast. A housing, including an inner surface and an upper surface that cooperate to define an inner cavity, may be oriented with respect to a patient's leg. The upper surface may be slidably received within the inner cavity in a piston and cylinder configuration or may be otherwise configured. The system may include a pressure sensor configured to monitor the load profile of a patient during the desired period of partial weight bearing. The pressure sensor may be located below the upper surface. The system may include a noncompressible force transmitter positioned within the inner cavity and at least partially encapsulating an upper portion of the pressure sensor to transmit pressure within the housing to the pressure sensor.
Abstract:
A pressure-detecting shoe includes a main body and a pressure sensor module. The main body includes a toe region, a ball region and a heel region. The pressure sensor module includes a toe pressure sensitive bag, a toe pressure sensor, a ball pressure sensitive bag, a ball pressure sensor, a heel pressure sensitive bag, a heel pressure sensor, a process unit, and a power supply unit supplying electric power for the process unit. The toe pressure sensitive bag, the ball pressure sensitive bag and the heel pressure sensitive bag are impressed by the toe region, the ball region and the heel region respectively. The toe, ball and heel pressure sensors detect corresponding pressures from the toe region, the ball region and the heel region, respectively, and transform the corresponding pressures to pressure signals. The process unit obtains the corresponding pressure signals and calculates the corresponding pressures according to the signals.
Abstract:
A system for monitoring strain as an indicator of biological conditions, such as spinal fusion, glucose levels, spinal loading, and heart rate. The system includes an inter-digitated capacitor sensor, and RF transmitter, and an associated antenna, all of which are microminiature or microscopic in size and can be implanted in a biological host such as a human or animal. An inductively coupled power supply is also employed to avoid the need for implantation of chemical batteries. Power is provided to the sensor and transmitter, and data is transmitted from the sensor, when an external receiving device, such as a handheld RF ID type receiver, is placed proximate the location of the implanted sensor, transmitter and inductively coupled power supply. The implanted sensor, transmitter and inductively coupled power supply can be left in place permanently or removed when desired.
Abstract:
A device for assessing hip joint conditions comprises a support structure including a first platform area and a second platform area spaced from each other. The device includes a first footrest rotationally coupled to the first platform, a second footrest rotationally coupled to the second platform, a first recording device coupled to the first footrest and adapted to record the angular movement of the first footrest, and a second recording device coupled to the second footrest and adapted to record the angular movement of the second footrest.
Abstract:
An intelligent insole for generating time sensitive information about the pressure on the foot. The insole includes a custom-made, semi-custom or generically sized orthotic component. The orthotic is laminated with a top cover and an intermediate pressure sensor having an array of capacitive pressure sensors. Signal processing equipment may be embedded in the insole or placed locally with the insole as on the side of a shoe. The processor also can connect to a wireless transmitter for relaying the information to a remote site.