An Active Ankle Foot Orthosis (AAFO) is provided where the impedance of an orthotic joint is modulated throughout the walking cycle to treat ankle foot gait pathology, such as drop foot gait. During controlled plantar flexion, a biomimetic torsional spring control is applied where orthotic joint stiffness is actively adjusted to minimize forefoot collisions with the ground. Throughout late stance, joint impedance is minimized so as not to impede powered plantar flexion movements, and during the swing phase, a torsional spring-damper (PD) control lifts the foot to provide toe clearance. To assess the clinical effects of variable-impedance control, kinetic and kinematic gait data were collected on two drop foot participants wearing the AAFO. It has been found that actively adjusting joint impedance reduces the occurrence of slap foot, allows greater powered plantar flexion, and provides for less kinematic difference during swing when compared to normals.

Systems, devices, and methods are described for locating and identifying anatomical landmarks, such as ligament attachment points, in image data. These systems, devices, and methods may provide an oblique plane that contains an anatomical landmark such as a ligament attachment point to the tibia. For example, the position at which the anterior cruciate ligament (ACL), medial collateral ligament (MCL) posterior cruciate ligament (PCL), or patellar tendon attaches to the tibia may be identified. The systems, devices, and methods allow for tracing of an anatomical landmark to generate a 3-D marking on a 3-D surface model of a patient's bone. The attachment points may be useful landmarks for patient-matched instrumentation.

Disclosed herein are methods, compositions and tools for repairing, replacing or otherwise treating bone ligaments using devices designed from patient-specific information, including without limitation, surgical alignment instruments that have a surface that conforms to at least a portion of a patient's bone, cartilage or other component of the joint or ligament being treated.

Axial stress or similar properties in a stressed tendon or ligament are measured by mechanical excitation of a shear wave in the tendon or ligament measured using ultrasonic displacement techniques at least two different longitudinal positions to derive a shear wave propagation speed. This shear wave propagation speed may be equated to an axial stress on the tissue using a model. Rapidly repeated measurements allow dynamic axial stress measurements to be obtained for clinical study.

Systems, methods, and devices include a multi-sensor scanning device for characterizing a health parameter. A scanning portion formed at an end of the multi-sensor scanning device includes a first sensor assembly. The first sensor assembly has a glass section forming a contact surface and/or one or more LEDs operable to provide electromagnetic waves to an interior of the glass section. The first sensor assembly also includes a light sensor directed at a transmission surface of the glass section. Additionally, the system includes a second sensor assembly involving one or more sensors directed at a same target area as the contact surface. Also, the one or more sensors of the second sensor assembly include an electrically conductive coating formed onto the contact surface and/or one or more electrical transducers deposed at least partly around the contact surface. The device can be a platform with a standing portion.

Systems, methods, and devices include a platform with a transparent material which defines a first measurement surface. Light surfaces are positioned to provide light into the transparent material and cause a Frustrated Total Internal Reflection (FTIR) event responsive to contact at the first measurement surface. The system also includes one or more wearable devices having a base material operable to cover a portion of a human body. An inner surface of the base material defines a second measurement surface. Furthermore, one or more sensors disposed on the base material are operable to collect data at the second measurement surface. Additionally, the health parameter monitoring system presents at the display, such as a virtual reality (VR) headset, locomotion regimen information. The system collects first health parameter data from the first measurement surface based on the FTIR event; and/or second health parameter data from the second measurement surface.

Systems, methods, and devices include a health parameter detection device. The device includes a platform with a measurement surface being a first surface. The measurement surface is operable to contact a target area of a user. The device includes one or more light sources disposed adjacent to the transparent material and operable to transmit light into the transparent material. Also, the device includes an interior mirror forming a first angle with the measurement surface; and/or a camera, such that the camera is operable to receive a scattered light caused by a frustrated total internal of reflection (FTIR) event occurring at the measurement surface and reflecting from the mirror. The platform can form part of at least one of a treadmill machine, an elliptical machine, a rowing machine, a stair stepping machine, or a leg press machine.

Systems, methods, and devices include a neurological function assessment system involving a first assessment tool (e.g., hammer) with one or more first sensors. The system includes a second assessment tool being a wearable device operable to wrap around a body part of a subject. One or more second sensors are disposed on the wearable device operable to sense a target area at the body part. The system collects first sensor data, from the first assessment tool, corresponding to an assessment event at the first assessment tool; and collects second sensor data, from the second assessment tool, corresponding to the assessment event. Additionally, the system presents, at a display, an indication of an objective neurological assessment parameter value calculated based on the first sensor data and the second sensor data. An objective neurological assessment parameter value can be calculated based on the first sensor data and/or the second sensor data.

Systems, methods, and devices include a frustrated total internal refraction (FTIR) based scanning device. The FTIR based scanning device has a transparent media and one or more electromagnetic wave emitters operable to provide a scanning light into the transparent media during a sample scanning procedure. One or more electromagnetic wave sensors, cameras, and/or microscopes are directed at a detection surface of the transparent media. These detection component(s) receive scattered light passing from the sample contact surface through the detection surface. The device uses the scattered light to represent a surface topology or a material composition of a sample contacting the sample contact surface during the sample scanning procedure. Additionally, the one or more electromagnetic wave emitters can include a plurality of LEDs or electromagnetic wave emitters corresponding to a plurality of different wavelengths which are used to generate an image of a 3D topology from the scattered light.

Systems, methods, and devices include one or more acoustics-controlling device(s). The acoustics-controlling device(s) comprise implants, fixations, patches, and/or coatings formed of a metamaterial to create a particular behavior when exposed to sound waves. An acoustic metamaterial manipulates the acoustic waves that reach it. The metamaterial has a non-uniform material distribution, a non-uniform geometry, and/or a non-uniform material property, such as a non-uniform density, a non-uniform modulus of elasticity, a non-uniform bulk modulus, combinations thereof, and so forth. The system(s) include acoustic controlling patches and implants which control a path of an acoustic signal generated by one or more speakers. An acoustic-controlling patch can include an acoustic Fresnel lens or an acoustic Luneburg lens formed onto a substrate. Furthermore, manipulating the acoustic signal includes focusing the acoustic signal, forming an acoustic vortex from the acoustic signal, steering the acoustic signal, guiding the acoustic signal, or bending the acoustic signal.