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US 10,702,290 B2Granted
Orthopedic fastener, retainer, and guide
AssigneeFirst Ray, LLC
InventorsDaniel J. Triplett, T. Wade Fallin
Life of this patent
Estimating the term…
Abstract
Implants, instruments, and methods for connecting and/or stabilizing first and second bone portions relative to one another are presented including fasteners and retainers connectable in axial force transmitting relationship and instruments for their installation. In one example a guide is configured to clamp two bone portions together while a fastener is inserted through at least one of the bone portions to engage a retainer.
Claims18
A system operable to fix first and second bone portions relative to one another, the system comprising:
- a retainer having a receiver defining a receiver longitudinal axis;
- a screw threadably engageable with the receiver, the screw having a shaft portion defining a longitudinal axis, the shaft portion having a distal shaft width dimension perpendicular to the screw longitudinal axis in a width direction, a proximal shaft width dimension perpendicular to the screw longitudinal axis in the width direction, the proximal shaft width dimension being greater than the distal shaft width dimension;
- and
- a guide having a handle, a bone contacting member mounted to the handle, and a retainer supporting member mounted to the handle opposite the bone contacting member, the retainer supporting member having a portion configured to releasably support the retainer opposite the bone contacting member, the bone contacting member and the retainer supporting member being mounted for translation relative to one another and being resiliently biased toward one another, wherein the guide is configured to clamp the first and second bone portions, together, between the retainer and the bone contacting member while the screw is engaged with the retainer;
- wherein the guide comprises a first guide tube defining an insertion axis and is operable to guide a drill having a diameter less than the proximal shaft width dimension of the shaft portion of the screw and is operative to permit passage of the screw along the insertion axis.
2 more elements
A system for fixing first and second bone portions relative to one another, the system comprising:
- a retainer;
- a fastener engageable with the retainer;
- a guide comprising:
- a handle;
- a bone contacting member mounted to the handle;
- a retainer supporting member mounted to the handle opposite the bone contacting member, the retainer supporting member having a portion operable to releasably support the retainer opposite the bone contacting member, the bone contacting member and the retainer supporting member being mounted for translation relative to one another, the retainer supporting member having a first grip and a second grip wherein actuating the first grip and the handle toward one another moves the bone contacting member and the retainer supporting member away from one another and actuating the second grip and the handle toward one another moves the bone contacting member and the retainer supporting member toward one another;
- wherein the retainer supporting member engages the handle in a rack and pawl arrangement wherein a pawl is moveable between a first position in which a rack is moveable longitudinally relative to the pawl in a first rack direction but is prevented from moving longitudinally relative to the pawl in a second rack direction opposite the first rack direction due to engagement of the pawl with the rack, and a second position in which the rack is moveable in the second rack direction, the retainer supporting member being resiliently biased in the first rack direction, the pawl being resiliently biased into the first position and the pawl including an extension positioned adjacent the handle such that applying pressure to press the first grip and the handle toward one another moves the pawl into the second position allowing the rack to move in the second rack direction and releasing pressure allows the pawl to be biased to the pawl first position.
4 more elements
A system for fixing first and second bone portions relative to one another, the system comprising:
- a retainer;
- a screw threadably engageable with the retainer;
- a guide having a bone contacting portion and an opposed retainer supporting portion operable to releasably retain the retainer opposite the bone contacting portion, the bone contacting portion and the retainer supporting portion defining a motion axis and being mounted for axial translation parallel to the motion axis toward and away from one another;
- the retainer supporting portion comprising spaced apart arms defining a perimeter greater than one half a perimeter of the retainer and being operable to spread apart to receive the retainer as the retainer is pressed between the arms and spring back to positively grip the retainer;
- wherein the retainer and the arms engage in a torque transmitting relationship operable to resist rotation of the retainer as the screw is threadably engaged with the retainer, wherein the torque transmitting relationship is defined by features formed on the retainer and the arms that engage when the retainer is received by the arms by pressing the retainer in a direction transverse to the motion axis, the features being operable to self-align as the retainer engages the arms.
2 more elements
Dependencies are inferred from the claim text.