Patent classifications
A61B17/921
System and method for altering rotational alignment of bone sections
A rotational correction system includes an implant having first and second sections, the implant having a rotatable permanent magnet disposed in a housing of the first section, the rotatable permanent magnet mechanically connected to a nut operatively coupled to the second section. A keyed portion is interposed between the nut and one or more non-linear grooves disposed on an inner surface of the housing. An external adjustment device having at least one rotatable magnet configured to rotate the rotatable permanent magnet of the implant is part of the system. Rotation of the rotatable permanent magnet of the implant in a first direction effectuates a clockwise change in the rotational orientation of the first section relative to the second section and rotation of the rotatable permanent magnet of the implant in a second direction effectuates a counter-clockwise change in the rotational orientation of the first section relative to the second section.
Intramedullary device for mid-shaft clavicle fractures
An intramedullary device for treatment of a mid-shaft clavicle fracture includes a base pin (1) having a primary fixation element (2) and a connection part (3). A secondary fixation element (6) is provided which is attachable to the connection part (3) at a distance along the base pin with respect to the primary fixation element (2). The connection part (3) of the base pin (1) and the secondary fixation element (6) are rotatable with respect to each other when attached, e.g. using an end cap (7).
SYSTEM AND METHOD FOR ALTERING ROTATIONAL ALIGNMENT OF BONE SECTIONS
A rotational correction system includes an implant having first and second sections, the implant having a rotatable permanent magnet disposed in a housing of the first section, the rotatable permanent magnet mechanically connected to a nut operatively coupled to the second section. A keyed portion is interposed between the nut and one or more non-linear grooves disposed on an inner surface of the housing. An external adjustment device having at least one rotatable magnet configured to rotate the rotatable permanent magnet of the implant is part of the system. Rotation of the rotatable permanent magnet of the implant in a first direction effectuates a clockwise change in the rotational orientation of the first section relative to the second section and rotation of the rotatable permanent magnet of the implant in a second direction effectuates a counter-clockwise change in the rotational orientation of the first section relative to the second section.
Intramedullary fixation nail and method of use
Disclosed is an method for use of an intramedullary nail comprising a shaft having a length, a diameter, an exterior bone contacting surface, a leading (or distal) end and a trailing (or proximal) end, wherein the leading end is progressively tapered and comprises a well or cup, adapted to receive the tip of a standard K-wire, the trailing end comprises a driving fitting adapted for attachment to a driving tool for insertion of the nail into the prepared bone, the trailing end may optionally include an internal thread that can be used to secure the nail to a drill guide which can also function as an insertion handle, and the nail's shaft may also optionally be equipped with threaded and/or unthreaded cross-drilled holes for insertion of unicortical locking screws and bone screws, respectively, once the nail is placed as desired.
Radial Head Fracture Treatment System
A system and methods are provided for treating radial head fractures. The system includes an implant, a sterile instrument kit for radial head arthroplasty, and a head sizer and assembly tray for sizing and assembling implants. The implant includes a head that is coupled with a stem. The head is adapted to be placed into sliding contact with a capitellum of the radiocapitellar joint. The stem is configured to be inserted into a hole reamed into a medullary canal of the radial head. The sterile instrument kit comprises a multiplicity of instruments including any one or more of trial heads and trial stems, a starter awl, a reamer, a planar, an inserter cap, and an impactor. The instruments are configured for implanting the implant into the radiocapitellar joint such that the implant restores biomechanical properties of the joint.
CHUCK SYSTEM FOR A POWERED SURGICAL IMPACTOR
A chuck for a powered surgical impactor can include a first body insertable into the powered surgical impactor and defining a first bit bore, a second body adapted to receive the first body; and a third body receivable at least partially within the second body and defining a second bit bore. The third body can define a lock projection extending radially inward into the second bit bore; and the third body and the second body can be adapted to rotate relative to the first body to move the lock projection between an unlocked position, in which the lock projection is located to allow insertion of a surgical instrument into the chuck, and an unlocked position, in which the lock projection is located to prevent removal of the surgical instrument from the chuck.
Intramedullary nail extractor
An intramedullary nail extractor including a central body, a rotatable sleeve and a clamping member. The central body includes a proximal end for attachment to an extractor, a distal end having a hook for engaging an intramedullary nail, and a threaded intermediate portion between the proximal end and the distal end. The rotatable sleeve threadedly engages the threaded intermediate portion of the central body, and the clamping member is operatively engaged by the rotatable sleeve and moveable relative to the central body.
SYSTEMS AND METHODS FOR INTRAMEDULLARY NAIL IMPLANTATION
Intramedullary nails, systems, and methods. The intramedullary nail may include a generally elongate body extending from a first, distal end to a second, proximal end. The distal end may include one or more openings configured to receive one or more bone anchors that extend transversely through the distal end intramedullary nail, and thereby configured to secure the distal end of the nail. The proximal end may also include one or more openings configured to receive one or more bone anchors that extend transversely through the proximal end of the intramedullary nail, and thereby configured to secure the proximal end of the nail. In some embodiments, the proximal end may further include a cross-locking feature, which includes a second bone anchor that interlocks with a first bone anchor, for example, for enhanced bone purchase and bony fixation.
Bone Fixation System
An implant for fixation of a bone includes a shaft having a proximal end and a distal end, and a longitudinal axis defined between the proximal end and the distal end. A plurality of blades are disposed on the shaft, and are helically twisted about the longitudinal axis. At least one of the blades has a variable blade width that increases in a direction along the longitudinal axis. A mechanism for coupling the implant to a second fracture fixation implant may be provided separately or in combination.
STERILIZATION TRAY FOR FACILITATING ATTACHMENT OF IMPLANT INSERTION DEVICE TO IMPLANTABLE DEVICE, RELATED APPARATUS AND METHODS
An apparatus including a sterilizable tray having a base and at least one fixture connected to the tray adapted for removably securing an implant insertion device to the tray. The tray can be free of a first wall portion for permitting the proximal end of an implantable device to axially align with the end of the implant insertion device for coupling to the implant insertion device and can be free of a second wall portion for permitting a tool to axially align with the end of the implant insertion device so as to threadedly couple the implant insertion device to the implantable device. Related methods and apparatus are provided.