An implant or endoprosthesis suitable to be implanted in human or animal tissue includes two (or more than two) parts to be joined in situ. Each one of the parts includes a joining location, the two joining locations facing each other when the device parts are positioned for being joined together, wherein one of the joining locations includes a material which is liquefiable by mechanical vibration and the other one of the joining locations includes a material which is not liquefiable by mechanical vibration and a structure (e.g. undercut cavities or protrusions) suitable for forming a positive fit connection with the liquefiable material. The joining process is effected by pressing the two device parts against each other and by applying ultrasonic vibration to one of the device parts when the two parts are positioned relative to each other such that the two joining locations are in contact with each other.

Disclosed herein are external fixation frames for correcting bone deformities. The external fixation frames include a top fixation ring and a bottom fixation ring coupled to one another by at least two struts. A half ring is coupled to bottom fixation ring. The bottom fixation ring is u-shaped. One or more rocker members may be coupled to the bottom fixation ring. The half ring may be hingedly coupled to the bottom fixation ring such that it can rotate with respect to the bottom fixation ring from a first position to a second position.

A clamp for an external fixator, preferably of the quick attachment type comprises at least one first attachment provided with at least one bar housing seat for a bar of the external fixator and/or with at least one screw housing seat for a bone screw; at least one second attachment provided with at least one bar housing seat; a connector which, in a tightened configuration, passes through said first attachment and said second attachment locking the bars and/or bone screws within the bar housing seats and/or the screw housing seats; and which, in an open configuration, frees the entrance to at least the bar housing seat of said second attachment; and auxiliary connection means between said first attachment and said second attachment which are active in said open configuration.

The present invention relates to a medical positioning device, comprising a first carriage assembly configured for mounting a first pin, wherein the orientation of the first pin is adjustable by means of 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 means of 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 clamping device for an external fixation system includes a clamp body including, a first jaw and a second jaw, wherein the first jaw and the second jaw form a groove configured to receive an external fixation component and a bore configured to receive a bone pin. The clamping device includes a locking assembly coupled to the clamp body and configured to change state between at least an unlocked state and a locked state, wherein the external fixation component is configured to translate within the groove and the bone pin is configured to translate within the bore when the locking assembly is in the unlocked state, and the first jaw and the second jaw restrict movement of the external fixation component within the groove and the bore restricts the bone pin from translating within the bore when the locking assembly is in the locked state.

A clamping system includes a first clamp body including a first jaw, a second jaw, and a first aperture configured to receive a bone pin, the first clamp body is configured to receive a first connector rod between the first jaw and the second jaw, a second clamp body coupled to the first clamp body and including a third jaw, a fourth jaw, and a second aperture configured to receive the bone pin, the second clamp body configured to receive a second connector rod between the third jaw and the fourth jaw, and a securing assembly movable between a first position and a second position, such that moving the securing assembly from the first position to the second position reduces a distance between the first jaw and the second and reduces a distance between the third jaw and the fourth jaw.

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.

An external fixator (1) for bone fractures is proposed herein, comprising at least two support units (2, 2′) for removably supporting bone screws (3). Each support unit (2; 2) comprises: a pair of support bodies (201), which are curved; a single support pin (202) or a pair of support pins (202) fixed to only one or both support bodies (201); a pair of locking devices (5) of a bone screw (3), fixed both to the single support pin (202) or, each to a respective support pin (202). Each locking device (5) comprises a locking element (501) of the bone screw (3); a locking pin (502) configured to support the locking element (501); wherein the locking element (501) is configured to rotate around the locking pin (502) and the locking device (5) is configured to rotate around the support pin (202) and to slide along the support pin (202) in such a way as to allow a versatile positioning of each bone screw (3), in a bone screw (3) positioning step.

The present invention is about an intra-corporal telescopic osteo-distraction device for locking the length of the bone and for providing axial, torsional and bending stability; an extra-corporal force producing device for producing a force for extension causing a lengthening of the intra-corporal device and the bone; a method for bone lengthening and a bone lengthening arrangement utilizing the devices of the invention.

System for connecting a connection device to a bone with a bone pin, wherein the connection device is provided with an opening for receiving the bone pin, wherein the system comprises: said connection device; a guiding tube arranged to guide the bone pin from the connection device to the bone for connecting the bone pin to the bone, wherein the inner diameter of the guiding tube corresponds to the outer diameter of the bone pin and wherein the guiding tube can be slidably received in the opening, the guiding tube being slidable with respect to the connection device along an axis parallel to a longitudinal axis of the opening; a locking device arranged to be received in the opening of the connection device and arranged to engage the bone pin for locking the bone pin with respect to the connection device,
wherein the guiding tube is movable with respect to the connection device and bone pin such that the guiding tube is removable from the combination of the bone pin and the connection device and wherein the locking device is arranged to lock the bone pin after removal of the guiding tube.