Roy Sanders - Tampa FL, US Priya Prasad - Warsaw IN, US Chris Bremer - Warsaw IN, US
Assignee:
DePuy Products, Inc. - Warsaw IN
International Classification:
A61B 17/80
US Classification:
606280
Abstract:
A fixation device for reduction and fixation of fractures of the talus bone of the foot includes a thin titanium alloy plate having a lower wing configured for attachment to the lateral aspect of the talus and an upper wing configured for attachment to the dorsal aspect of the talus. The plate includes a substantially perpendicular or right angle bend between the lower and upper wings. In one embodiment, each wing includes three screw holes arranged in a generally triangular pattern. Two holes on each plate are situated in tabs and the center of the plate has a reduced width so that the plate presents a minimal profile. One of the tabs on the upper wing is bent away from the lower wing at a pre-determined angle so that the wing conforms to the shape of the talus. In an alternative embodiment, the upper wing includes a step portion between the lower wing and the bent tab and carrying one screw hole. In this embodiment, the bent tab is generally elongated with one or two screw holes disposed along its length.
Plate For Lengthening The Lateral Column Of The Foot
Mark Myerson - Baltimore MD, US Priya Prasad - Warsaw IN, US Chris Bremer - Warsaw IN, US
Assignee:
DePuy Products, Inc. - Warsaw IN
International Classification:
A61B 17/88
US Classification:
606281
Abstract:
An implant for lengthening the lateral column of the foot is configured for engagement across the calcaneocuboid joint or across a space formed between two bone segments of the calcaneus bone. The implant includes a plate configured positioning on the bone segments and includes an array of screw holes at its opposite ends arranged for solid fixation to the corresponding bone using bone screws. The implant includes a wedge projecting from the bone engaging surface of the plate. The wedge has a width that is tapered toward the plantar aspect and toward the medial aspect of the foot.
Roy Sanders - Tampa FL, US Priya Prasad - Warsaw IN, US Chris Bremer - Warsaw IN, US
International Classification:
A61F 2/30
US Classification:
606069000
Abstract:
A device for fixation of the navicular bone of the foot includes a truss plate defining a plurality of holes for receive bone screws therethrough. The holes are staggered along the length and width of the plate to minimize the overall width of the plate and to ensure that bone screws passing through all holes do not conflict within the bone. The plate includes a medial section configured for attachment to the medial aspect of the navicular and a dorsal section that is curved into a hook shape for attachment to the dorsal aspect of the bone. The hook shape helps retain and reduce the bone fragments of a fractured navicular. The plate further defines a plurality of cut-outs between struts supporting the screw hole locations, wherein the cut-outs are configured to receive bone fasteners therethrough.
Mark Myerson - Baltimore MD, US Priya Prasad - Warsaw IN, US Roy Sanders - Tampa FL, US Chris Bremer - Warsaw IN, US
International Classification:
A61F 2/30
US Classification:
606061000
Abstract:
A fixation device for fixation and/or fusion of the bones and joints of the mid-foot includes a plate having a plurality of screw holes for attachment of the plate around the perimeter of the fusion site. In one embodiment, four screw holes are positioned at the corners of the plate and two screw holes are located at the opposite sides and mid-length of the plate. Preferably, four additional screw holes are defined at the interior of the plate to increase the number of points of attachment of the plate to the bones of the mid-foot or to increase the ability to stabilize multiple bone segments in the case of a difficult mid-foot fracture. The plate includes a plurality of cut-outs defined between or interior of the screw holes. The cut-outs are sized to accept additional bone fasteners to either enhance the attachment of the plate to the mid-foot bones or to provide access for a fastener to reduce a bone fragment beneath the plate. The plate is configured so that the screw holes and cut-outs are not positioned over a fusion location when the plate is attached to the mid-foot.
Mark Myerson - Baltimore MD, US Priya Prasad - Warsaw IN, US Roy Sanders - Tampa FL, US Chris Bremer - Warsaw IN, US
International Classification:
A61F 2/30
US Classification:
606069000
Abstract:
A fixation device for reduction of bone segments of the metatarsus comprises a fixation plate that is sized and configured to generally conform to the shaft of the metatarsus between the head and base. The plate includes a head end that is wider than the base end, with curved side edges that gradually taper between the two ends and produce a necked-down portion between the two ends that narrower than either end. The profile of the plate is further reduced by curving the plate across its width and along the entire length of the plate and by forming the plate at a minimal thickness of about 0.9 mm. The plate is provided with a plurality of screw holes staggered across the length and width of the plate. In the preferred embodiment, two screw holes are provided at each end and a group of four screws are provided adjacent each of the side edges. The screws holes are staggered to avoid conflict of the screws within the bone regardless of how many screws are used to secure the plate to the bone.
Plate For Fusion Of The Metatarso-Phalangeal Joint
Mark Myerson - Baltimore MD, US Priya Prasad - Warsaw IN, US Chris Bremer - Warsaw IN, US
International Classification:
A61F 2/30
US Classification:
606069000
Abstract:
A fixation plate for use in fusion of the metatarsal-phalangeal joint includes a distal portion configured to engage the metatarsus bone and a proximal portion configured to engage the phalanx bone. The distal portion is elongated with several screw defined therethrough along a longitudinal axis passing through the portion. The proximal portion includes a plurality of screw holes that are all offset relative to each other along axes parallel and perpendicular to the longitudinal axis. No more than one of the screw holes in the proximal portion is aligned with the longitudinal axis. The fixation plate is contoured to cup the bones of the MTP joint. The plate may include an intermediate portion that is bent at a pre-determined dorsi-flexion angle.
Javier E. Castaneda - Miami FL, US Chris Bremer - Warsaw IN, US Steve Donnelly - Willoughby OH, US Pam Guzman - Wayne IN, US Dennis Stoller - Wayne IN, US
International Classification:
A61F 2/30
US Classification:
606 69
Abstract:
A short guide for temporary fixation to a fastener hole in a bone plate, includes a bottom threaded portion, a top portion, and a central passage for guiding an orthopedic device. The threaded end is preferably provided with a triple lead taper thread. The central passage is sized for receiving an orthopedic device, e.g., a drill bit or K-wire. The top portion is provided with tool engagement structure for coupling to a guide driver. The length of the device permits multiple guides to be pre-assembled to the plate without obscuring and crowding the area of interest. When the bone plate includes polyaxial bushings, the guides are initially lightly screwed therein, permitting the surgeon to modify the angle of each guide and bushing to a selected orientation before locking the bushing at an orientation by tightening the guide into the bushing.
David Daniels - Winona Lake IN, US Dave Bailey - South Bend IN, US Chris Bremer - Warsaw IN, US Daniel Hoernschemeyer - Columbia MO, US
International Classification:
A61B 17/86 A61B 17/80
US Classification:
606305, 606 70, 606286
Abstract:
Among other things, there is disclosed an orthopedic plate system for use in supporting or stabilizing long bones in pediatric patients. The plate includes a substantially planar portion for placement along a diaphysis of a long bone and a portion curved out of the plane of the planar portion for placement along at least part of a metaphysis of the long bone. Holes through the plate are provided for screws in both the curved and planar portions, which hold the plate to the long bone. The holes are substantially parallel to each other and substantially perpendicular to the plane of the planar portion. Screws through the holes and into the bone are substantially parallel to an epiphyseal plate of the long bone, so that attachment of the plate to the bone does not adversely affect growth of the long bone.