Pedicle-based intradiscal fixation devices, systems, instruments, and methods thereof. The implant or a portion thereof may be composed of a shape-memory material, which has a curved shape-memory orientation and a temporarily straight orientation. The implant may be configured to be inserted into a pedicle of an inferior vertebra, through the vertebral body of the inferior vertebra, and into the vertebral body of the superior vertebra to thereby stabilize the inferior and superior vertebrae.

A surgical device (600) includes an articulating portion (604) for navigating the device within a bodily cavity. The articulating portion (604) includes an articulating sheath (1000) and an articulating torque transmission wrist within the articulating sheath (1000). The articulating sheath (1000) may define one degree of freedom or two or more degrees of freedom. The articulating portion (604) may be part of a surgical device shaft (602) connected to an end effector (603) rotated by an internal torque transmission shaft including the articulating torque transmission wrist. The articulating portion (604) may be articulated while the torque transmission shaft is being rotated.

An insertion device for deploying an implant includes an elongated main body having a distal locking portion for coupling to the implant and a proximal handle portion. The main body defines a central passage and the distal locking portion has outer ridges and slots to allow the outer ridges to flex radially inward when mounting to the implant. A plunger slides in the central passage for movement between an unlocked position for mounting the implant on the distal locking portion, a locked position for locking the implant on the distal locking portion, and an insertion instrument deployed position for deploying the actuation plunger to move the blades from the stowed position to the deployed position. A spike cap drive rotatably mounts on the main body having a socket end for engaging a drive nut on the implant to, in turn, move the spike cap.

An expandable implant (1) implantable in an intra-osseous cavity of a bone comprises an anchoring body (2) having a distal end and a proximal end for anchoring the distal end relative to a part of the bone outside the cavity. An expandable part (4), for in the intra-osseous cavity, is fixated to the anchoring body, e.g. at the distal end. The expandable part comprises a movable piece with a load supporting surface for supporting a wall of the cavity against a load acting on the bone. The movable piece is movable away from the anchoring body in a direction of expansion perpendicular to the longitudinal direction, to bring the load supporting surface from an initial position in a non-expanded state to an expanded position in a expanded state in which the load supporting surface abuts to the wall. A driving part (70) is movable relative to the proximal end of the anchoring body. A transmission (73) extends between the driving part and the expandable part, the transmission engaging on the load supporting surface for transferring at least a part of a force exerted on the driving part to move the driving part relative to the proximal end of the anchoring body to the load supporting surface and thereby actuate movement of the load supporting surface in the direction of expansion.

Described is a new bone healing method and class of bone fixation implants that change shape once implanted so as to minimize non-healing and speed the bone healing process. The bone fixation method involves shape changing implants that continuously hold the bones in apposition so that a gap does not form. Gaps in time allow non-bony tissue to infiltrate and stop healing. Furthermore, the implants actively compress bone to increase bone mass and strength. Bone cell pressure due to compression and electrical current flow due to bone deformation act to stimulate healing. The new implant designs also provide a scaffolding to conduct bone through the implant and across the healing bone interface. The methods and designs are applicable to but not limited to use for bone screws, plates, staples, rods, cylinders and external fixation devices.

A build plate includes a surface that defines at least one opening configured for disposal of a proximal portion of a screw shaft. The proximal portion is formed by a first manufacturing method and defines a distal face. The proximal portion is connected with the surface in a configuration to orient the distal face for forming a distal portion of the screw shaft thereon by a second manufacturing method that includes an additive manufacturing apparatus. In some embodiments, systems, spinal constructs, surgical instruments and methods are disclosed.

A dynamic bone anchor includes an anchor member having a tubular body with a first end and a second end, the anchor member defining an anchor axis including a plurality of barb elements, and being made at least partially of a nickel-titanium (Ni—Ti) based shape memory alloy. The dynamic bone anchor also including a core member configured to be inserted from the first end through the second end such that a first portion of the tubular body extends out from the first end, and a second portion of the tubular body extends out from the second end. The anchor member and the core member are configured such that when assembled, the first portion of the core member is spaced apart from the anchor member and movable with respect to it, and the second portion of the core member is fixed to and movable together with the anchor member.

Compression devices for joining tissue and methods for using and fabricating the same.

Bone and joint stabilization devices or systems are described that include multiple-layer bodies. The approach offers dramatically improved fatigue life as compared to one-piece spring members that are otherwise similar or comparable. Coordinated improved-strength anchor embodiments, anchor loading tools and methods of use are also described.

The guidance and positioning device may be a system for creating a passage in tissue, positioning fasteners or other implants, and tensioning an elongated fastening member, like a suture, thread, wire, or pin. In some embodiments, the device may allow for the implantation of multiple sutures and fasteners in tissue. A fastener may be positioned at the distal end of a flexible pushrod. The fastener may be connected with the pushrod or may be loosely fitted with the distal end of the pushrod. A suture may be looped through or connected with the fastener such that one, two, or more sections, legs, strands, or portions of the suture extend from the fastener.