4 results about "Tibia" patented technology

The present disclosure relates to a system for guiding an osteotomy procedure on a tibia and / or a femur pertaining to a patient's lower limb to correct a misalignment of said lower limb, wherein a tibial tracker is fixed to the tibia and a femoral tracker is fixed to the femur, said system comprising a control unit configured to be coupled to a localization system adapted to track a position and orientation of the tibial tracker and the femoral tracker, wherein the control unit is configured to: —receive at least one target alignment parameter of the lower limb provided by a user; —determine a position of a set of characteristic points on the tibia and / or the femur relative to the tibial tracker and / or the femoral tracker; —track the positions of said characteristic points relative to the tibial tracker and / or the femoral tracker based on localization data of the set of characteristic points during application of mechanical constraints by the user onto the patient's knee, said tracked positions forming a knee measurement data set; —based on the knee measurement data set, adjust a function defining a model of the patient's knee; —based on at least one output of said function and on at least one alignment parameter of the lower limb in the constrained position, determine at least one correction parameter of the osteotomy procedure to be applied to the lower limb to achieve the target alignment parameter.

A device for assessing laxity of a joint is disclosed. The device comprises a trial component comprising a base plate configured to couple to a tibia of the joint and a superior spacer coupled to the base plate. The base plate and the superior spacer define a cavity therebetween that may receive a portion of a tensioner tool. When force is applied via the tensioner tool, the superior spacer is configured to be selectively moved from a first position in contact with a superior surface of the base plate to a second position separated from the superior surface. A system for assessing laxity of a joint including a first bone and a second bone is also disclosed. The system comprises the trial component, the tensioner tool, and a processor configured to determine a gap distance associated with the first bone and the second bone during tensioning.

The techniques described herein relate to a tibial prosthesis for a knee arthroplasty optionally including a baseplate and a tibial keel. The baseplate optionally including: a distal surface sized and shaped to substantially cover a proximal resected surface of a tibia; a proximal surface opposite the distal surface, the proximal surface having a lateral compartment and a medial compartment opposite the lateral compartment; a periphery extending between the distal surface and the proximal surface; a first layer of porous material forming at least a majority of the distal surface and extending to the periphery; and a second layer of non-porous or relatively less porous material having a plurality of reference features extending through the first layer, wherein the plurality of reference features form at least a portion of the distal surface; and a tibial keel extending distally from the distal surface to define a longitudinal tibial keel axis. 20 24 27 84 88 17 D ec 2 02 4 2 0 2 4 2 7 8 4 8 8 1 7 D e c 2 0 2 4

The application discloses a six-degree-of-freedom light high-compatibility foot-ankle rehabilitation exoskeleton, which comprises an ankle-tibia connecting rod module, an ankle joint shaft module, a forefoot fixing module and a hindfoot fixing module; the ankle-tibia connecting rod module is used for being fixed in parallel with a lower leg and providing a power assisting anchor point at the back side of the lower leg; the forefoot fixing module and the hindfoot fixing module are respectively used for being fixed with the front end and the rear end of the foot of a wearer and providing an end power assisting anchor point at the heel; the ankle joint elastic element is directly contacted with the shoes of a user, and six-degree-of-freedom flexible interaction force is generated. The traditional foot-ankle exoskeleton is limited to toe flexion and dorsiflexion movement, and the elastic element design of the application can adapt to any movement of the foot-ankle within a safety limit, that is, the movement of the foot-ankle, such as internal rotation, external rotation, internal collection, external expansion, toe flexion and dorsiflexion. The application can effectively increase the activity of the foot-ankle, greatly improve the man-machine compatibility, and solve the problem that the existing ankle exoskeleton robot cannot meet the daily functional requirements of patients due to the heavy body configuration and single degree-of-freedom configuration.