Disclosed is a fenestrated bone anchor suitable for being anchored in live bone tissue of a human or animal patient. The bone anchor comprises a shaft with a proximal end and a distal end and a circumferential surface extending from the proximal end to the distal end. The shaft further comprises a longitudinal cavity extending from the proximal end towards the distal end and a plurality of lateral channels extending through a wall of the shaft from the axial cavity to the circumferential surface. The lateral channel has a pear-shaped cross section and/or the thickness of the wall increases gradually in selected ones of directions towards the lateral channels. The fenestrated bone anchor is e.g. a component of a surgical system comprising an interbody fusion device of the stand-alone type.

Disclosed are system and methods that use at least one non-threaded anchor and an implant with at least one aperture to join boney structures, where the interaction of the head of the anchor with the implant aperture causes the anchor to move transversely with respect to an initial trajectory. This movement causes compression or distraction of the boney structures which are coupled to the anchors.

Apparatus for mounting in a bone of a patient, consisting of a rigid elongated member having an axis of symmetry and a distal section, a proximal section, and an intermediate section connecting the distal and proximal sections. The apparatus has n helical blades, formed in the distal section, distributed symmetrically about the axis, each of the blades having a helix angle greater than zero and less than 45°. A cross-section of the distal section, taken orthogonally to the axis of symmetry, includes n mirror planes containing the axis of symmetry, wherein n is a whole number greater than one, and wherein the blades are configured to penetrate into the bone and engage stably therein. Adapters coupling the apparatus to different types of markers are also described

Embodiments are directed to spinal treatments and, more particularly, to a fenestrated pedicle nail, wherein the pedicle nail performs as an anchored system for pedicle instrument constructs that prevents fracturing from over-compressing of bone of poor quality. Embodiments include a pedicle nail comprising a shank and a nail head. The shank may comprise a proximal end and a distal bone engagement end. The nail head may be disposable on the proximal end of the shank, wherein the nail head may threadably engage the proximal end thereof. The nail head may have external bone threads.

An interbody spacer for a spine includes a housing having a plurality of clearance holes configured to engage bone of the spine. A contact plate including a plurality of apertures is positioned a distance away from the housing configured to engage bone of the spine. A plurality of rivets adjoin the housing and the contact plate. A plurality of springs are included with each spring configured to encircle a respective rivet and translate the distance between the housing and contact plate from a minimum distance to a maximum distance.

An alloy for biomedical use includes Zr as a main component, Nb the content of which is not less than 0.1% by weight and not greater than 25% by weight, Mo the content of which is not less than 0.1% by weight and not greater than 25% by weight, and Ta the content of which is not less than 0.1% by weight and not greater than 25% by weight. A tensile strength of the alloy is not less than 1000 MPa. A total content of Nb, Mo, and Ta in the alloy is not less than 2% by weight and not greater than 50% by weight. Mass susceptibility of the alloy is not greater than 1.50×10.sup.−6 cm.sup.3/g. A Young's modulus of the alloy is not greater than 100 GPa. Also disclosed is a medical product including the alloy and a method for producing the alloy.

A navigation-guided surgery fixation (NGSF) system. The NGSF system may include a fixation member for fixating an intraoral surgical guide. The fixation member may include a shank portion and a shaft portion, the shaft portion extending out from an end portion of the shank portion, and wherein the shank portion has a diameter greater than that of the shaft portion; and a sleeve member, wherein the sleeve member may include a through-hole substantially the same size of the shank portion and configured to receive the shank portion therein.

The invention relates to a plate fixed between two bone parts by way of screws engaged in holes formed in the thickness of said plate. The plate comprises an angled member or rib which is inclined according to an angle of between about 30° and 60° in relation to the plane defined by the plate. The angled member or rib has a hole for engaging a screw and is located in the central part of the width, over a determined part of the length of the plate, so that the screw brings the two bone parts into a compressive position.

A handheld closing device for closing a bone closure device. The handheld closing device includes a main body portion with an end and a receiving member located at the end of the main body portion. The receiving member is configured for receiving the securing member of the bone closure device. The handheld closing device further includes a tightening member rotatably connected to the main body portion. The tightening member includes a receiving hole configured for receiving the strap of the bone closure device. The tightening member is configured for tightening the strap. The handheld closing device further includes a lever pivotally connected to the main body portion. The lever is configured for operably engaging with the securing member to position the securing member in its locked position.

Orthopedic implants, systems, instruments, and methods. A bi-portal lumbar interbody fusion system may include an expandable interbody implant and minimally invasive pedicle-based intradiscal fixation implants. The interbody and intradiscal implants may be installed with intelligent instrumentation capable of repeatably providing precision placement of the implants. The bi-portal system may be robotically-enabled to guide the instruments and implants along desired access trajectories to the surgical area.