Devices and methods for treating bone fractures involving a micromotional unit (6) that produces reciprocating displacement between two fracture fragments (1) to thereby apply controllable micromotion to a fracture site.

An orthopedic device is disclosed that includes a threaded elongated shaft having a length, a regular polygon cross-section, and a longitudinal axis defined therethrough, wherein the elongated shaft having side surfaces extending over the length of the elongated shaft wherein each side surface corresponds to each of the sides of the regular polygon cross-section; and a pair of clamps releasably clamped on to the threaded elongated shaft, wherein each of the clamps is configured for holding up to two bone fixation pins in an orientation that is non-parallel with the longitudinal axis of the elongated shaft.

An external load bearing distracting device, which can be positioned to fully unload a knee joint cartilage while providing the knee joint normal motion, for an articulating anatomical joint. The device includes a first and second rotatable threaded rods arranged longitudinally on opposite sides of a rotating joint, and first and second translational tubes slidably arranged around the first and second rotatable threaded rods, respectively. The rotating joint may comprise a ball-and-ring-joint configured for accommodating a two mutually complementary brake elements. The first and second rotatable threaded rods each include a first and second clamping nuts thereon, which contact a proximal end of the first and second translational tube to limit longitudinal translation thereof towards the rotating joint. The distracting device is intended for temporary implantation to treat osteoarthritis, focal cartilage defects, and fractures inside the knee joint.

A surgical guide includes a body defining a first access port and a second access port. The first access port extends on a first longitudinal access parallel with a first edge of the body and the second access port extends on a second longitudinal access positioned non-parallel with respect to each edge of the body. At least one coupling arm extends from the body. The at least one coupling arm defines at least one fixation aperture sized and configured to receive a fixation element through.

Clamp (1) for an external fixator, preferably of the quick attachment type, comprising: a plurality of attachments (2; 3) for blocking bars and/or bone screws; a connector (5), provided with an at least partially threaded stem (50), which passes through and connects in series said plurality of attachments (2; 3); at least one first attachment (2) comprising two arms (20; 21), connected by a C-shaped flexible bridge (22); said stem (50) passing through said first attachment (2) in an intermediate position between said flexible bridge (22) and the opposite free ends of said arms (20; 21); wherein, at the free ends, said arms (20; 21) define a screw housing seat (23) for a bone screw, said screw housing seat being selectively configurable, varying the deformation of the flexible bridge (22), to clamp bone screws having different diameter.

The present invention relates to a medical positioning device. In one example, the device comprises comprising a first carriage assembly configured for mounting a first pin, wherein the orientation of the first pin is adjustable by a first spherical joint with three rotational degrees of freedom with an angular range of at least ±10° each, a second carriage assembly configured for mounting a second pin, wherein the orientation of the second pin is adjustable by a second spherical joint with three rotational degrees of freedom with an angular range of at least ±10° each and an extension assembly configured for adjusting a distance between the first pin and the second pin.

A kit and corresponding methods of use are disclosed. In use, the kit includes a plurality of articulating clamps for coupling to one of the rings of an external fixation system. In use, the clamps include a body portion having a stem arranged and configured to be received within an opening formed in one of the rings. The clamp further including a clamp assembly for engaging a rod spanning the first and second rings. Thus arranged, the clamp may be directly coupled to one of the rings and the rod, the clamp enabling the position of the ring to be adjusted relative to the rod. As such, the clamps may enable, inter alia, a hexapod external fixation system to be converted into a static frame, a static frame to be constructed in a more efficient manner, and/or creation of an enlarged visualization or working window.

The present application provides external bone fixation systems. The systems include one or more pairs of bone fixation platforms in the form of rings or partial rings. The platforms may be coupled to corresponding bone segments. The pair of platforms are configured to accept a plurality of struts extending therebetween. The struts are configured to attach to the platforms via joints that provide three degrees of rotation. The struts are also configured such that their longitudinal length extending between the joints/platforms can be incrementally adjusted while attached to the platforms. The struts are further configured such that their total range of length adjustment can be increased by coupling at least one add-on component to the struts in situ. The lengths of each of the plurality of struts may be adjusted to arrange the platforms, and thereby the bone segment coupled thereto, in particular relative positions and orientations.

Dynamization tabs and methods of use are provided. Dynamization tabs may be used with an external fixation ring or other fixator device as part of a therapeutic treatment of bone fractures or malformations. The device forms a connection between one or more fixation struts and an external fixation ring so as to introduce controllable amounts of movement or dynamization to the arrangement of the struts and the fixator. By introducing controlled amounts of dynamization, therapeutic benefits can be derived in the enhanced, accelerated bone formation, mineralization and remodeling of the underlying bone. Dynamization tabs may comprise a strut connector, a mechanical biasing or dynamizing device, and a ring connector. Many different forms for introducing controlled amounts of dynamization are disclosed.

An external fixation system for the correction of long bone deformities includes an elongate beam element having an engagement feature along a longitudinal edge of the elongate beam element, a connector element secured to the elongate beam and structurally configured to support a first bone anchor extending from the external fixation system, and a movable carriage engaged with the engagement feature along the longitudinal edge of the elongate beam element and selectively movable along the engagement feature of the elongate beam element. The movable carriage is selectively lockable into a position along the elongate beam element. The movable carriage is structurally configured to support a second bone anchor extending from the external fixation system.