Abstract: A screw guide for connecting to a bone plate includes a body having proximal and distal ends spaced from each other along a direction. The distal end has a coupling mechanism for coupling to the bone plate at an orientation. The body defines at least one channel that extends along a central axis and is configured to receive a bone fastener therein in a pre-loaded position. The coupling mechanism is configured such that the central axis substantially aligns with a central axis of a fastener hole of the bone plate when coupled to the bone plate at the orientation. The body has a retention mechanism at least partially located within the at least one channel and configured to apply a retention force to the bone fastener for retaining the bone fastener within the channel in the pre-loaded position.

Abstract: A modular bone fixation linkage includes a plurality of interconnected links that can angulate with respect to an adjacent one of the links in-plane or out-of-plane. The links can further include fixation holes that are configured to receive fixation members that secure the links to an underlying anatomical structure.

Abstract: A sleeve for use with a percutaneous, external fixation device is disclosed, wherein the sleeve includes a sleeve body with an interior space in which the percutaneous device can be disposed, a flange that extends at a substantially perpendicular angle to the sleeve body, and a cutting edge extending from the sleeve body below the flange. The cutting edge is designed for placement in contact with the skin adjacent to the percutaneous device so as to define a leading edge thereof in a primary anticipated direction of migration of the percutaneous device. Kits and assemblies that include sleeves and percutaneous devices are also disclosed. Further disclosed are methods of reducing tension in a patient's skin following placement of the percutaneous device via use of the sleeve, as well as methods of adjusting and readjusting the assembly upon placement.

Abstract: An orbital implant includes a bladder configured to be implanted between an orbit and an eyeball of a patient. The bladder defines at least one port and at least one compartment in fluid communication with each other. The at least one compartment defines an interior volume and is configured to hold a fill material so as to be adjustable responsive to injection of fill material into the at least one compartment through the at least one port as well as removal of fill material from the at least one compartment through the at least one port. Adjustment of the interior volume is configured to reposition the eyeball.

Abstract: A modular bone fixation linkage includes a plurality of interconnected links that can angulate with respect to an adjacent one of the links in-plane or out-of-plane. The links can further include fixation holes that are configured to receive fixation members that secure the links to an underlying anatomical structure.

Abstract: A modular bone fixation linkage includes a plurality of interconnected links that can angulate with respect to an adjacent one of the links in-plane or out-of-plane. The links can further include fixation holes that are configured to receive fixation members that secure the links to an underlying anatomical structure.

Abstract: A sleeve for use with a percutaneous, external fixation device is disclosed, wherein the sleeve includes a sleeve body with an interior space in which the percutaneous device can be disposed, a flange that extends at a substantially perpendicular angle to the sleeve body, and a cutting edge extending from the sleeve body below the flange. The cutting edge is designed for placement in contact with the skin adjacent to the percutaneous device so as to define a leading edge thereof in a primary anticipated direction of migration of the percutaneous device. Kits and assemblies that include sleeves and percutaneous devices are also disclosed. Further disclosed are methods of reducing tension in a patient's skin following placement of the percutaneous device via use of the sleeve, as well as methods of adjusting and readjusting the assembly upon placement.

Abstract: A screw guide includes a first end, a second end spaced from the first end, a guide body that extends from the first end to the second end, and a guide hole that extends through the guide body. The guide body includes a first guide surface and a second guide surface, the first guide surface defines a first opening of the guide hole, and the second guide surface is spaced from the first guide surface in a first guide direction. The second guide surface defines a second opening of the guide hole, the guide body includes a leg portion that extends from the second guide surface in the first guide direction such that the leg portion is spaced from the second opening in a second guide direction that is perpendicular to the first guide direction.

Abstract: An orbital implant includes a bladder configured to be implanted between an orbit and an eyeball of a patient. The bladder defines at least one port and at least one compartment in fluid communication with each other. The at least one compartment defines an interior volume and is configured to hold a fill material so as to be adjustable responsive to injection of fill material into the at least one compartment through the at least one port as well as removal of fill material from the at least one compartment through the at least one port. Adjustment of the interior volume is configured to reposition the eyeball.

Abstract: A screw guide includes a first end, a second end spaced from the first end, a guide body that extends from the first end to the second end, and a guide hole that extends through the guide body. The guide body includes a first guide surface and a second guide surface, the first guide surface defines a first opening of the guide hole, and the second guide surface is spaced from the first guide surface in a first guide direction. The second guide surface defines a second opening of the guide hole, the guide body includes a leg portion that extends from the second guide surface in the first guide direction such that the leg portion is spaced from the second opening in a second guide direction that is perpendicular to the first guide direction.

Abstract: A modular bone fixation linkage includes a plurality of interconnected links that can angulate with respect to an adjacent one of the links in-plane or out-of-plane. The links can further include fixation holes that are configured to receive fixation members that secure the links to an underlying anatomical structure.

Abstract: A clutch mechanism connects a rotating shaft to an outer clutch member having a clutch keyway. The clutch mechanism permits the shaft to rotate in a normal direction and prevents the shaft from rotating in a reverse direction when the outer clutch member is rotationally fixed to the housing. A key is moveable into an engaged position with the clutch keyway to rotationally fix the outer clutch member to the housing. The key is also moveable into a disengaged position to permit the outer clutch member to rotate relative to the housing. Thus, the shaft is permitted to rotate in both the normal direction and the reverse direction. A positive, mechanical and/or visual indication of whether the shaft is capable of operating in both directions may also be included. The assembly may include a sealed interior space in common with the machine including the shaft.

Abstract: An occipitocervical fixation system includes a plate for securing to the occiput and at least one pre-bent rod. The plate includes holes for receiving bone fasteners, and at least one clamping assembly for retaining a portion of a rod. The clamping assembly is selectively pivotable and lockable in place to fix the position of the rod.

Abstract: An occipitocervical fixation system includes a plate for securing to the occiput and at least one pre-bent rod. The plate includes holes for receiving bone fasteners, and at least one clamping assembly for retaining a portion of a rod. The clamping assembly is selectively pivotable and lockable in place to fix the position of the rod.

Abstract: The present invention relates to a bone fixation assembly for securing a fixation device, such as a bone plate, to bone. The assembly includes the fixation device, a bushing, a fastening screw, and a locking screw. The bushing is seated within a through hole in the fixation device and can rotate within the through hole and has a sidewall with a bore. The sidewall has at least one slot for allowing outward expansion of the sidewall against the through hole to thereby lock the bushing at a selected angle relative to the axis of the through hole. The fastening screw has a threaded shaft for insertion through the bore of the bushing and threads into bone to secure the bushing and fixation device to bone. The head of the fastening screw fits in the bushing and includes a radial wall and open end defining a recess. The radial side wall has at least one slit for allowing outward expansion of the radial wall thereby outwardly expanding the sidewall of the bushing.

Abstract: The present invention relates to a bone fixation assembly for securing a fixation device, such as a bone plate, to bone. The assembly includes the fixation device, a bushing, a fastening screw, and a locking screw. The bushing is seated within a through hole in the fixation device and can rotate within the through hole and has a sidewall with a bore. The sidewall has at least one slot for allowing outward expansion of the sidewall against the through hole to thereby lock the bushing at a selected angle relative to the axis of the through hole. The fastening screw has a threaded shaft for insertion through the bore of the bushing and threads into bone to secure the bushing and fixation device to bone. The head of the fastening screw fits in the bushing and includes a radial wall and open end defining a recess. The radial side wall has at least one slit for allowing outward expansion of the radial wall thereby outwardly expanding the sidewall of the bushing.

Abstract: A bone fixation assembly for securing a fixation device such as a bone plate, to bone includes a fixation device including a through hole; a bushing having a sidewall with a bore and a slot; a fastening screw with a threaded shaft and a head including a recess; and a locking screw with a body capable of being threaded into the head of the fastening screw to expand its radial wall. In use, the bushing is seated within the through hole of the fixation device at a selected angle and the fastening screw is inserted through the bore of the bushing such that its head fits in the bushing and its shaft is threaded into bone. The locking screw may then be threaded into the head of the fastening screw to expand the radial wall of its head resulting in the locking of the fastening screw, and bushing at a selected orientation within the through hole.

Abstract: A surgical drill guide assembly for demountable attachment to the fastener holes of a bone plate is provided. The drill guide assembly includes a pair of alignment drill tubes that are aligned with corresponding fastener holes in the bone plate, and a pair of expandable bushings that are configured and dimensioned to engage the fastener holes. The surgical drill guide assembly is releasably lockable to the bone plate.