A method for controlling an artificial knee joint comprising an upper part and a lower part pivotally connected to each other, a resistance unit arranged between the upper part and the lower part and having an adjusting device to adjust the damping resistance, a control unit, the adjustment taking place on the basis of sensor data from at least one sensor. During the swing phase at least one of the knee angle (KA), the knee angle velocity (KAV), the knee angle acceleration (KAA), the lower limb angle, the lower limb velocity, the lower limb acceleration, the ankle moment (AM) and the axial force (AF) is sensed, the curve of the parameter is determined and the damping resistance is changed when, after an extreme value of the parameter is reached, the monotonic behavior of the curve of the parameter changes within the swing phase.

An adjustable knee ankle foot orthosis for unloading weight from a knee joint afflicted with osteoarthritis, thus reducing pain and improving mobility, comprising: an upper and lower frame connected by an unloading hinge assembly, optionally comprising a sensor and processor allowing for remote or automatic control of brace tension. In embodiments, the brace includes a user mechanism that is capable of adjusting a tensioning element while the brace is being worn. In other embodiments, electronic motors, sensors, and indicators may be included in the brace to improve brace performance and user interaction.

Methods, non-transitory computer readable media, serial monitor devices, fiducial tracking knee braces devices, and systems that facilitate generation of improved three-dimensional models from two-dimensional multi-planar images are disclosed. With this technology, correspondence of a patient's knee angle is substantially maintained across x-ray images to improve fiducial-marker-to-bone relationships within the images and facilitate improved scaling and registration of the images to generate a three-dimensional model of the knee. In particular, orientation sensor(s) attached to an improved knee brace device allows a user to substantially match the position of the knee across anterior/posterior and lateral x-ray images so that the images can be scaled and oriented more effectively, resulting in more accurate three-dimensional models and improved preoperative planning for patients.

A cross-strap apparatus is disclosed for use with a brace having an proximal portion engageable above a joint of a user, an opposing distal portion engageable below the joint, and first and second cross-straps extending between and interconnecting the proximal and distal portions, the first and second cross-straps transversely oriented relative to one another and positioned for intersecting one another in an overlapping fashion at a cross-strap intersection substantially at the joint. In at least one embodiment, the apparatus provides a resilient hub portion sized and configured for engagement with each of the first and second cross-straps proximal to the cross-strap intersection. The hub portion provides at least one first engagement mechanism positioned and configured for engagement with the first cross-strap, and at least one second engagement mechanism positioned and configured for engagement with the second cross-strap, thereby maintaining the position of the hub portion relative to the cross-strap intersection.

The present disclosure relates to a technical field of medical exercise apparatus. A non-surgical reduction exercise therapy apparatus for rupture of anterior cruciate ligament or achilles tendon includes a thigh immobilization device, a calf immobilization device, an adjustable knee joint hinge and a foot immobilization device, a boot heel being provided under a rear of the boot sole. The present disclosure has a reasonable and compact structure and is convenient to use, and also has characteristics of low treatment cost, no surgery, whole process activities, pleasant dance, no influence on work and study during treatment, and fast healing of the anterior cruciate ligament or achilles tendon.

An exoskeleton wear management method is provided. The method includes receiving inertial data from a sensing system; determining whether a left leg component of an exoskeleton device is parallel to a left leg of a user and a right leg component of the exoskeleton device is parallel to a right leg of the user according to the received inertial data; in response to determining that the left leg component/the right leg component is not parallel to the left leg/the right leg of the user, prompting an adjusting left leg component message/an adjusting right leg component message; and in response to determining that the left leg component is parallel to the left leg of the user and the right leg component is parallel to the right leg of the user, prompting a left leg component and right leg component correctly-worn message.

A walking assist device includes a pair of link members rotatably connected to each other at an output shaft situated at a location corresponding to a knee of a user, one link member being fixed to a thigh side of the user, and another link member being fixed to a lower leg side of the user, a rotary damper that generates a resistance force that is conveyed to the output shaft and that acts against rotation of the link members around the output shaft, a one-way gear that limits the resistance force generated by the rotary damper to one of directions of the rotation of the link members around the output shaft, and a clutch that switches between conveyance and non-conveyance of the resistance force from the rotary damper.

A garment for providing orthopedic support or therapy to a human body may include a tubular flexible element and a tension strap. The tubular flexible element may be disposed around at least some portion of a human body and include flexible and a touch fastener portions. The flexible portion may be at an exterior of the tubular flexible element and cover a first portion of the body. The touch fastener portion may be at the exterior of the tubular flexible element and cover a second portion of the body. The tension strap may include first and second ends, where the first end includes a first touch fastener to be coupled with the touch fastener portion at a first location, and the second end includes a second touch fastener to be coupled with the touch fastener portion at a second location, thereby applying tension between the first and second locations.

A spring adapter for arrangement on an orthopedic joint system is disclosed, where the orthopedic joint system includes an upper part and a lower part articulated thereto about a pivot axis. The joint system comprises a resistance element that exerts a resistive force on a pivoting movement about the pivot axis. The spring adapter comprises at least one pneumatic spring element, flexible spring element and/or torsion spring element and is tensioned when the upper part is pivoted relative to the lower part.

An optical scanning microscope includes an illumination system having a light source portion emanating from a light source, first and second polarizing beam splitters, and first and second optical channels disposed between the beam splitters. The light source portion is configured to emit a first illumination light beam comprising light of a first main polarization direction and of a second main polarization direction. The first beam splitter is configured to guide the light primarily into the first and channels, respectively. The second beam splitter is configured to form a second illumination light beam from light of the first and second main polarization directions from the first channel and second channels, respectively. The first and second channels are configured to emit the light of the first and second main polarization directions from the first and second channels, respectively, so as to have different types of convergence.