The present invention provides an orthopedic external compression unit having a locking plate unit and a method for locking and compressing the fractured bones without contact and friction between plate and bone, wherein the locking plate unit comprises of a locking plate, an external apparatus and a holder, wherein the locking plate includes plurality locking holes and at least an elongated hole, wherein the holder is placed at the elongated hole. The holder is configured to hold the locking plate above the bone for enabling to make required movement of locking plate in horizontal direction. Accordingly, fastening the compressing unit using a non-locking screw to the plate converts the vertical movement of head-screw into horizontal movement of connecting rod of the compression unit, thereby enabling to move the plate along with one end of fractured bone towards the fractured site thus producing compression between the fractured bones.

The invention relates to an apparatus for displacing tissue within the body, wherein the apparatus includes two or more attachment members selectively displaceable with respect to each other via a driving member. The driving member preferably is rotatable and is caused to rotate by a magnetic actuator that can be activated by a magnetic field from outside the body.

The invention relates in particular to a system for attaching a first bone segment to a second bone segment, the two segments belonging to the same bone, in which the first and second segments are held together via a hinge resulting from the partial transverse cutting of said bone, characterized by the fact that said system comprises: two targets suitable for attaching to the two segments of said bone; a navigation system suitable for acquiring the three-dimensional positions and orientations of the targets; a processing system suitable for calculating, based on the data sent from the navigation system, the angles corresponding to the three-dimensional alignment of said two segments; a display unit suitable for displaying the information to the surgeon; at least one milling guide; a plurality of implants of different sizes.

A bone fracture plate assembly including female and male plate portions. The female plate portion has a post, a female dovetail, and an extending arm with a group of ratchet teeth. The male plate portion has two upstanding posts, a male dovetail for coupling to the female dovetail so that the plate portions move linearly with respect to each other, a slot for the arm, and a pawl for engaging the ratchet teeth. A spring, coupled to the posts of the plate portions, dynamically connects the plate portions by applying a compressive load therebetween. The spring has a pair of elongated ears, each defining a slot to allow for relative movement of the plate portions. The ratchet teeth are engaged by the pawl to retain the plate portions together, and the spring mounts on the posts of the plate portions such that the spring biases the plate portions together.

A ratcheted spinal device including a variable-length member including a ratchet mechanism that has an operative configuration that allows a change in length of the variable-length member in one direction and prevents a change in length of the variable-length member in an opposite direction, wherein the variable-length member includes polyaxial-joint attachment members for attachment to bone, which permit pivoting movement of the attachment members about more than one pivoting axis.

The various embodiments disclosed herein relate to bone fixation or fusion devices, including intramedullary fixation or fusion devices that are implanted around the target bone. Certain device embodiments relates to devices that can be bent or otherwise deformed to replicate the natural or desired curve of the bone or joint being treated. In addition, other embodiments relate to implantation devices that can be used to implant or position the bone fixation or fusion devices.

An implantable cervical plate assembly includes a cervical plate, one or more bone fasteners. The cervical plate comprises an elongated asymmetric body having one or more through-openings extending from the front surface to the back surface of the elongated asymmetric body. The one or more bone fasteners are configured to be inserted through the one or more through-openings, respectively. The bone fasteners comprise a threaded main body and a head that includes one or more breakable structures configured to be broken when inserted into a groove and then unflex and remain captured within the groove.

The present disclosure provides implantable bone distraction devices and methods of using same to elongate a bone.

An anatomical shoulder fixation system having a stem having a plurality of holes configured to receive bone screws. The stem having compressible suture locking members protruding from the flared head portion configured to receive and lock an elongated member. The plurality of holes configured to have locking mechanisms abutting the holes. The locking mechanisms preventing the bone screw from backing out while also providing the screw the freedom necessary to realign itself during the healing process. In one locking mechanism embodiment, a locking member utilizing a frustoconical split ring configured lock within a retention groove of the bone screw. Another embodiment has a rotating member with a protrusion that locks into a retention groove of the bone screw. An alternative embodiment has a rotating member that rotates over the bone screw utilizing a complimentary angle between the screw head and the protrusion.

A sternal closure device includes an insertion member, a receiver member and a joint locking mechanism. The joint locking mechanism includes a dual pawl assembly and a dual ratchet assembly. The dual pawl assembly includes a pair of pawl arms that include heads with outward facing teeth. The dual ratchet assembly includes a pair of ratchet arms with inward facing teeth that are configured for an intermeshed engagement with the teeth on the corresponding pawl arms. Alignment tabs on the ratchet arms are captured within guide channels on the receiver member. The configuration and number of the teeth contribute to the strength of the device. The locking mechanism contributes to efficiency, speed, and strength of the closure.