A device includes a plurality of rings. Each ring has a first face, a second face, and at least one slot defined by first and second interior edges of the ring on opposing sides of the slot. The at least one slot penetrates from the first face to the second face. The first face of each ring has a first recess adjacent the slot on the first edge and a second recess adjacent the slot on the second edge. A plurality of posts join each one of the plurality of rings to an adjacent one of the plurality of rings.

A multifunctional spacer for knee surgery is described comprising a main body configured for use with a single femoral condyle and having an anterior portion of a first height and a posterior portion of a second height, wherein the second height is greater than, equal to or less than the first height. In addition, the anterior portion and/or the posterior portion is provided with an attachment mechanism for selective attachment of a height adjuster.

A system and method for internal pelvic fixation. Guide wires can be inserted through guides and opposing sides of a pelvic bone, and can indicate a depth for driving bone screws into the pelvic bone. Offset rod tools positioned about each guide can assist in determining an offset distance between an implant rod and the pelvic bone. A template rod may be coupled to the offset rod tools and used to select a length for the implant rod. Clamps can be coupled to the bone screws, the clamps having multiple axes of rotation, the angular positions of the clamps being secured by the tightening of a single nut of each clamp. Joysticks used to tighten the nuts can be coupled to a reduction holder mechanism that can decrease at least an axial distance between the clamps, and thus pelvic bones, before locking of the clamps via tightening of the nuts.

The present invention relates to an external fixation system including at least one pair of connected clamp units forming at least one clamp. Each of the clamp units includes: a first component comprising a molded metal, the first component having a first exterior surface having a plurality of voids formed therein to define a plurality of interconnected ribs and a first periphery having at least one first pin groove formed therein; and a second component mated to the first component and including a second periphery having at least one second pin groove formed therein, the at least one first pin groove and at least one second pin groove together forming a fixation pin holder. A fixation pin is held in at least one of the fixation pin holders.

A clamping device of an external fixation system that has a jaw set with a passage at one end configured to hold an element from a first range of sizes and a second passage configured to hold an element from a different range of sizes. The jaw set includes a first jaw, a second jaw, and a slider interposed between the first and second jaws that moves to a first position when the first element is located in the first passage and to a second position when the second element is located in the second passage.

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.

A multifunctional traction and bone fixation device relates to the technical field of medical devices. Two traction clamping plates serve as a base. The front of each of the two traction clamping plates defines a traction nail. The middle portion of the clamping plate is arranged with a positioning and pressurizing screw. The rear end of the clamp plate is arranged with a traction handle screw. The clamping plate is arranged with a plurality of auxiliary fixation pin holders and auxiliary fixation pins. Heads of two traction nails are injected in opposite directions into a lower portion of a fracture site to determine a fixation position. Rear ends of the two traction clamping plates extend along the thigh direction to be weighted-pulled.

The present invention includes a system, kit and apparatus to aid in the realignment of one or more bones of a patient. The present invention provides a substantially rigid orthopedic stabilization scaffold for attachment of one or more external fixators for the realignment of one or more bones of a patient. The orthopedic stabilization scaffold includes a first anchorable frame and a second anchorable frame that are connectable at a point and removably attachable to an operating table.

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 first and second rotatable extensions arranged longitudinally on opposite sides of the joint, and first and second translational inserts slidably arranged inside the first and second rotatable extensions, respectively. The joint may comprise a ball-and-ring-joint or a cardan joint. The first and second translational inserts include a threaded portion and a pair of threaded nuts thereon, which abut a retainer on each of the first and second rotatable extensions to limit longitudinal translation. The external load-bearing distracting device is temporarily attached to the patient, preferably for a period of 6 to 8 weeks, and is intended for use to treat osteoarthritis, focal cartilage defects, and fractures inside the knee joint, among other conditions of articulating anatomical joints.

The present disclosure relates to a universal and liquid expansion type clamping device for a pelvic fracture reduction robot. The clamping device is composed of an affected side spherical hinge support module, a pin rod clamping part, a rod-rod clamping part, a butt joint module, and a healthy side fixing module. The affected side spherical hinge support module is a main module for the pelvis clamping device, and by adopting a spherical hinge structure, the affected side spherical hinge support module is connected to the pin rod clamping part and the butt joint module respectively. The rod-rod clamping part is fixedly installed on one side of an operation table by the healthy side fixing module.