Patent classifications
A61B17/8897
TOTAL WRIST PROSTHESIS AND RELATED METHODS
A tool for locating the insertion point of a radial component of a wrist prosthesis on a human distal radius bone, the guide comprising a handle; a guide face attached to the handle, the guide face being of a shape configured to engage an articular surface of the distal radius bone; the guide face comprising three visual cues respectively adapted to align with a palmar corner of a radio-ulnar joint located on the distal radius, a dorsal corner of a radio-ulnar joint located on the distal radius, and a tip of a radial styloid located on the distal radius; the guide face further comprising an opening designating the insertion point, the opening being at a designated location on the guide face relative to the visual cues; and the opening adapted to facilitate the marking of the insertion point on the articular surface of the distal radius bone.
Internal pelvic fixator
A system and method for internal pelvic fixation. Guide wires can be inserted through guides and opposing sides of a pelvic bone, and can indicate a depth for driving bone screws into the pelvic bone. Offset rod tools positioned about each guide can assist in determining an offset distance between an implant rod and the pelvic bone. A template rod may be coupled to the offset rod tools and used to select a length for the implant rod. Clamps can be coupled to the bone screws, the clamps having multiple axes of rotation, the angular positions of the clamps being secured by the tightening of a single nut of each clamp. Joysticks used to tighten the nuts can be coupled to a reduction holder mechanism that can decrease at least an axial distance between the clamps, and thus pelvic bones, before locking of the clamps via tightening of the nuts.
Device and system for facilitating insertion of a bone treatment device
A device includes an outer sleeve of flexible material forming an outer conduit extending longitudinally therethrough for the insertion of a bone treatment device (“BTD”) to target sites within a living body. A distal opening of the outer conduit is open so that, when the outer sleeve is in a desired position within the body, BTD is inserted through the outer conduit exits the outer sleeve adjacent to a target portion of a bone. The device also includes an inner sleeve received within the outer sleeve and defining an inner conduit within the outer conduit to form a protective covering. The inner sleeve is split longitudinally. Portions of the inner sleeve on opposite sides of the split are coupled to one another so that a diameter of the inner conduit is adjustable in response to forces exerted thereon by one of BTD and tissues surrounding the outer sleeve.
FENESTRATED IMPLANT
The present invention relates generally to implants used in medical procedures such as bone fixation or fusion. More specifically, this application relates to fenestrated implants used in bone fixation or fusion.
ORTHOPAEDIC SYSTEMS AND METHODS FOR DEFECT INDICATION
This disclosure relates to surgical devices and methods for repairing bone defects. The defect indicators disclosed herein may be utilized to indicate a precise location of the defect associated with an articular surface of a joint.
Bone Screw Fixation System
A bone screw fixation system includes a bone screw body having a screw head at one end of the screw and a screw tip at an opposite end of the screw, the screw head having an internal complex geometric shaped drive and internal threads within the screw head; and a screw inserter compatible with the screw head and having a complex geometric shaped drive configured to matingly engage the internal complex geometric shaped drive of the screw head and a threaded tip configured to thread into the internal threads of the screw head.
BONE IMPLANT AND METHOD OF CONTROLLING THE BONE IMPLANT
The combination of: a) an implant having a body with a leading end and a trailing end and external threads extending around a lengthwise axis, the body having an axial through passage and configured to be directed into a bone passage whereby upon turning the body in a first direction around the lengthwise axis, the external threads engage a surface bounding the bone passage and cause the implant to be advanced in an assembly direction into an operative position; and b) a removal tool with a first component that is configured to be engaged with the body with the implant in the operative position in such a manner that the body will follow movement of the first component as the first component is: a) turned in a direction opposite to the first direction; and b) drawn in a direction oppositely to the assembly direction to thereby allow the implant to be separated from the bone.
BONE ANCHORS AND SURGICAL INSTRUMENTS WITH INTEGRATED GUIDE TIPS
Bone anchors and surgical instruments (e.g., bone taps, drivers, etc.) are disclosed herein that include integrated guide tips. Use of these anchors or instruments can eliminate one or more of the steps in a conventional bone anchor installation procedure, improving surgical efficiency and safety. For example, a surgical instrument can include a guide projection configured for insertion through a cannulation formed in a bone anchor when the surgical instrument is coupled to the bone anchor. The surgical instrument can also include various mechanisms for adjusting the position of the guide projection relative to the bone anchor. The guide projection can replace the needle, stylet, and guidewire used in typical insertion procedures. The bone anchor can also include integrated tapping features to eliminate the need for a separate bone tap instrument. Thus, in some embodiments, targeting, tapping, and driving the bone anchor can be performed in a single step.
Surgical device for insertion of guide wire and pedicle screw
The invention relates to a surgical tool and method for forming a pilot bore by inserting a guide wire into bone. The surgical tool is also constructed to insert a bone screw that is preloaded onto the surgical tool with a guide wire extending along the longitudinal axis of the bone screw. This construction allows the guide wire and the bone screw to be located and placed without removing the tool from the surgical site. More particularly, the device includes a cannulated hand grip and driving tool used for the rotation of a pedicle screw into bone. The rear portion of the hand grip includes a slide assembly that is suited to grip a guide wire. The slide assembly includes a T-handle to control the sliding movement of the guide wire. The rear surface of the slide is constructed to be impacted with a hammer or similar device.
Set Screw for Femoral Nail
An intramedullary intertrochanteric fracture fixation device includes an intramedullary nail having a proximal portion and a distal portion, a neck screw and a set screw assembly (264, 262, 266). The intramedullary nail defines an angulated opening in the proximal portion and includes an axial bore extending through a proximal end of the nail and into the angulated opening. The proximal portion further includes a compartment defined by an upper stop, a lower stop and a sidewall. The sidewall of the compartment defines a slot. The neck screw is insertable the angulated opening and includes a length and an exterior surface defining a groove. The set screw assembly (264, 262, 266) is pre-operatively assembled within the proximal portion of the intramedullary nail and selectively moveable into the compartment for preventing rotational movement of the neck screw within the angulated opening of the intramedullary nail. The set screw is cannulated to receive a guidewire when pre-operatively assembled.