Patent classifications
A61B17/8883
MODULAR BONE IMPLANT DEVICES AND MEANS OF INSERTION
A modular bone fixation implant includes a center post having exterior bone engaging features and configured to be implanted within a bone. The center post includes an aperture at an outer end of the center post. One or more interchangeable modular components may be placed within the bone and anchored to the aperture of the center post. Interchangeable modular components may include staples, bone plates, and spacers, each having at least a first end including a post engaging arm sized and shaped to seat within an interlocking feature of the aperture. A locking screw is provided to anchor all components to the center post when the interchangeable modular components have been placed.
TARGETED TORQUE RELIEF FOR TORQUE-BASED INSTRUMENTS
The present disclosure provides medical instruments and medical instrument components having targeted torsional failure. Such targeted torsional failure helps prevent a surgeon from applying excessive torque that may damage an implant or bone, and also helps avoid the problems and complications that arise when medical instruments break within patients during surgical procedures. To provide such targeted torsional failure, the disclosed medical instrument components include a breakaway section designed so that the component breaks at a desired amount of torque, at a desired location, and in a desired way. The provided medical instrument components may also include a sleeve to increase side-loading strength that may otherwise be reduced due to the breakaway section. The increased side-loading strength may help prevent accidental bending-type failures. The presently disclosed medical instrument component therefore provides targeted torsional failure without sacrificing side-loading strength.
Bone screw
A bone fixation system with variable z-axis translation is provided. The system includes an outer tulip coupled to a bone fastener via a screw retainer. An inner tulip is coupled to the outer tulip such that the inner tulip is longitudinally movably relative to the outer tulip. The inner tulip includes a lock that provides a seat for a connecting rod. The inner tulip together with a seated rod is permitted to translate along the z-axis inside the outer tulip when in an unlocked position. Also in the unlocked position, the bone fastener is free to angulate relative to the outer tulip. The z-axis position of the inner tulip and rod relative to the outer tulip is fixed in a locked position. Also, in the locked position, the bone fastener is locked with respect to the outer tulip. The system may be adjusted between the locked and unlocked positions by way of a set screw.
INSTRUMENT FOR INSERTING AN INTERSPINOUS PROCESS IMPLANT
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.
PERFORATOR-INTEGRAL SUTURE ANCHOR DEVICE
A perforator-integral suture anchor device is proposed. More specifically, it simultaneously inserts and fixes the suture anchor into the bone while the pilot hole in the bone is forming when an anchor driver is pressed and rotated. The perforator-integral suture anchor device includes the suture anchor having threads formed on an outer circumferential surface thereof, and the anchor driver capable of pressing and rotating the suture anchor, wherein the anchor driver includes a plurality of guide arms protruding forward by being spaced apart from each other relative to a central axis of the anchor driver, and a perforating tip formed at a front end of each of the guide arms, and the suture anchor includes a plurality of female coupling grooves recessed on an outer surface of the suture anchor in a longitudinal direction thereof and allowing the suture anchor to be coupled to the plurality of guide arms.
INSTRUMENT FOR INSERTING AN INTERSPINOUS PROCESS IMPLANT
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.
Spinal implant system and methods of use
A spinal implant includes a first member configured to penetrate tissue and a second member. The second member has an abutment engageable with a surgical instrument and at least one peripheral capture element engageable with a moveable arm of the surgical instrument. Systems, spinal constructs, surgical instruments and methods are disclosed.
SURGICAL TOOL FOR POSITIONING A SURGICAL DEVICE, SURGICAL DEVICE AND KIT
A surgical tool for positioning a surgical device including a gripping portion; a rod protruding from the gripping portion; and a coupling system. The coupling system comprises an axial retention assembly comprising, at a free end of the rod, two opposite semispherical portions, wherein the respective flat surfaces are separated from each other by an axial notch made partially along the rod, and a central clutch movable between a locking position and a disengagement position. In the locking position, the central clutch approaches the free end of the rod and is interposed between the two semispherical portions, preventing the reciprocal approach thereof so as to block the two semispherical portions within a seat of said surgical device. In the disengagement position, the central clutch moves away from the free end and the two semispherical portions can approach to allow the tool to come out of the surgical device.
Methods of tissue repair
Methods of tissue repair. At least one example method includes: pulling a tissue in place over a bone location; abutting a distal end of a guide tool against the tissue at a first location, and driving a first bone anchor through a delivery tube of the guide tool, through the tissue, and into the bone at the first location, the first bone anchor coupled to a first suture line; abutting the distal end of the guide tool against the tissue at a second location displaced from the first location, and then driving a second bone anchor through the delivery tube, through the tissue, and into the bone at the second location, the second bone anchor associated with the first suture line; withdrawing the guide tool away from the tissue; and tightening the first suture line to create a first suture over the tissue.
Bone screw
Bone graft comprising cortical bone material having a screw shank with an external thread and a screw head. Screw head has an outer jacket surface which is rotationally symmetrical about a screw head axis and has an external thread. At least two recesses, which are distributed about the screw head axis, extend axially in the direction of the screw head axis and open into an end face of a free end of the screw head, for receiving an insertion tool. The recesses are each formed by side faces, which extend from the outer jacket surface in the direction of the screw head axis and merge into one another in a surface section close to the axis. By this design, introduction of an insertion torque is optimized and new surgical areas of application such as in intramedullary splinting, arthroscopic insertion and deep insertion of the graft into an bearing bone are possible.