Back to results
US 11,998,243 B2Granted
Spinal implant system and method
AssigneeWarsaw Orthopedic, Inc.
InventorsDustin Bobbitt, Rex W. Armstrong, David A. Mire, William Alan Rezach
Life of this patent
Estimating the term…
Abstract
A bone fastener comprises a head including a first receiver that defines an implant cavity and a second receiver that defines an implant cavity. The first receiver is connected to the second receiver. A shaft is aligned with the first receiver and configured to engage tissue. A part is disposed within the implant cavity of the second receiver and movable relative thereto in a selected plane of a body. Systems, surgical instruments, spinal constructs, implants and methods are disclosed.
Claims23
A bone fastener comprising:
- a head including a first arm, a second arm and a third arm, the third arm extending at an acute angle relative to the first arm, an inner surface of the first arm and an inner surface of the second arm defining a first rod slot, an outer surface of the second arm and an inner surface of the third arm defining a second rod slot, the third arm having a length substantially equal to a length of the first arm, wherein the first arm, the second arm and the third arm are permanently fixed relative to one another;
- a shaft attached with the head and configured to engage tissue;
- a part movably disposed within the first rod slot such that the part engages the shaft;
- a first extender coupled to the first arm;
- and
- a second extender coupled to the second arm.
3 more elements
A bone fastener comprising:
- a head including a first arm, a second arm and a third arm, the first and second arms extending parallel to one another, the third arm extending at an acute angle relative to the first arm, the third arm having a length equal to a length of the first arm, an inner surface of the first arm and an inner surface of the second arm defining a first rod slot, an outer surface of the second arm and an inner surface of the third arm defining a second rod slot, the first rod slot being permanently fixed relative to the second rod slot, the first rod slot extending parallel to the second rod slot, wherein the first arm, the second arm and the third arm are permanently fixed relative to one another;
- a crown movably disposed within the first rod slot;
- a shaft engaging the crown, the shaft being attached with the head in a multi-axial configuration;
- a first extender removably coupled to the first arm such that the first extender extends parallel to the first arm and an inner surface of the first extender is continuous with the inner surface of the first arm;
- and
- a second extender removably coupled to the second arm such that the second extender extends parallel to the second arm, an inner surface of the second extender being continuous with the inner surface of the second arm and an outer surface of the second extender being continuous with an outer surface of the second arm.
3 more elements
A bone fastener comprising:
- a head including a first arm, a second arm and a third arm, the first and second arms extending parallel to one another, the third arm extending at an acute angle relative to the first arm, the third arm having a length equal to a length of the first arm, an inner surface of the first arm and an inner surface of the second arm defining a first rod slot, an outer surface of the second arm and an inner surface of the third arm defining a second rod slot, the first rod slot being permanently fixed relative to the second rod slot, the first rod slot extending parallel to the second rod slot, wherein the first arm, the second arm and the third arm are permanently fixed relative to one another;
- a crown movably disposed within the first rod slot;
- a shaft directly engaging the crown, the shaft being attached with the head in a multi-axial configuration;
- a first extender removably coupled to the first arm such that the first extender extends parallel to the first arm and an inner surface of the first extender is continuous with the inner surface of the first arm;
- a second extender removably coupled to the second arm such that the second extender extends parallel to the second arm, an inner surface of the second extender being continuous with the inner surface of the second arm and an outer surface of the second extender being continuous with an outer surface of the second arm;
- and
- a third extender removably coupled to the third arm such that the third extender extends parallel to the third arm and an inner surface of the third extender is continuous with the inner surface of the third arm.
4 more elements
Dependencies are inferred from the claim text.