Bone plates, and related systems and methods

Patent metadata

Field	Value
Publication number	US-12408956-B2
Application number	US-202318171827-A
Country	US
Kind code	B2
Filing date	Feb 21, 2023
Priority date	Feb 21, 2023
Publication date	Sep 9, 2025
Grant date	Sep 9, 2025

Abstract

A bone plate includes first and second ends opposed along a longitudinal axis oriented along a longitudinal direction, first and second sides opposed along a lateral direction, and a bone-facing surface and an outer surface opposed along a transverse direction. The plate defines a first hole and a second hole arrangement extending from the outer to the bone-facing surface. The second hole arrangement is distal of the first hole, which is configured to receive a first fixation member, and the second hole arrangement is configured to receive at least one second fixation member for affixing with underlying bone. The plate is pivotable along an angulation range about the first hole. The second hole arrangement laterally crosses the longitudinal axis, defines the angulation range, and allows the at least one second fixation member to substantially secure the plate to the underlying bone at any angulation within the angulation range.

First claim

What is claimed:

1. A bone fixation system, comprising:
an intramedullary nail having a nail body elongate along a longitudinal direction, the nail body having a nail head and a distal locking portion spaced from the nail head in a distal direction along the longitudinal direction, the nail head defining a nail hole extending through the nail body along a transverse direction offset from the longitudinal direction; and
a bone plate having a plate body extending along a longitudinal plate axis and having first and second sides opposite each other along a lateral direction perpendicular to the longitudinal plate axis, the plate body having an outer surface and a bone-facing surface opposite each other, wherein the plate body is alignable with the nail body such that (1) the longitudinal plate axis is oriented substantially along the longitudinal direction, (2) the outer surface and bone-facing surface are spaced from each other along the transverse direction, and (3) the lateral direction is offset from the longitudinal and transverse directions;
the plate body defining a first plate hole and a second plate hole arrangement distally spaced from the first plate hole, the first plate hole and the second plate hole arrangement each extending from the outer surface to the bone-facing surface,
wherein the first plate hole is configured to receive a first locking member for insertion through the first plate hole and the nail hole for interconnecting the bone plate to the intramedullary nail, and the second plate hole arrangement is configured to receive at least one second locking member,
wherein the plate body is configured to pivot along an angulation range about a central hole axis of the first plate hole when the first locking member extends through the first plate hole and further into the nail hole, the angulation range configured for aligning the plate body with a distal portion of the nail body along the transverse direction, the angulation range defined between laterally opposed ends of the second plate hole arrangement, and
wherein the second plate hole arrangement is configured such that the at least one second locking member is configured to substantially secure the bone plate to an underlying bone at any selected angulation within the angulation range.

2. The bone fixation system of claim 1 , wherein the angulation range is from about 2 degrees to about 15 degrees.

3. The bone fixation system of claim 1 , wherein the second plate hole arrangement of the plate body comprises a single, curved guide slot that extends between the laterally opposed ends along a curved slot axis having at least a directional component along the lateral direction, the at least one second locking member is a bone screw configured to extend through the curved guide slot and further into a second nail hole defined in the nail body, and the second nail hole is spaced from the nail hole in the distal direction.

4. The bone fixation system of claim 3 , wherein a distance between the central hole axis of the first plate hole and the curved slot axis is substantially equivalent to a distance between central hole axes of the nail hole and the second nail hole.

5. The bone fixation system of claim 3 , wherein the curved slot axis has a radius in a range from about 15 mm to about 40 mm, as measured from the central hole axis of the first plate hole, wherein the radius is substantially constant along the curved slot axis.

6. The bone fixation system of claim 3 , wherein the curved guide slot defines a slot width measured along a direction perpendicular to the curved slot axis, and the slot width is slightly greater than a major diameter of a shaft of the bone screw.

7. The bone fixation system of claim 3 , wherein the curved guide slot extends through the plate body from an upper hole perimeter at an interface with the outer surface of the plate body to a lower hole perimeter at an interface with the bone-facing surface of the plate body, and the curved guide slot includes a countersink extending from the upper hole perimeter toward the lower hole perimeter.

8. The bone fixation system of claim 1 , wherein the second plate hole arrangement of the plate body comprises a pair of second holes laterally spaced from each other along an arrangement axis that intersects central axes of the pair of second holes, and the arrangement axis extends across the longitudinal plate axis.

9. The bone fixation system of claim 8 , wherein the pair of second holes are variable angle locking (VAL) holes, the at least one second locking member comprises a pair of variable angle locking (VAL) screws configured for variable angle locking with the pair of second holes.

10. The bone fixation system of claim 9 , wherein the pair of VAL screws are configured to extend through the VAL holes and into underlying bone alongside opposite lateral sides of the nail body at a location of the nail body distally spaced from the nail hole, and the pair of VAL screws are configured to lock with the plate body for limiting the intramedullary nail from moving laterally relative to the underlying bone.

11. A bone plate configured to attach to an underlying bone, the bone plate comprising:
a plate body having a first end and a second end opposite each other along a longitudinal direction, the plate body defining a longitudinal axis that extends between the first and second ends along the longitudinal direction, the plate body having a first side and a second side opposite each other along a lateral direction offset from the longitudinal direction, the plate body having a bone-facing surface and an outer surface opposite each other along a transverse direction offset from the longitudinal and lateral directions,
the plate body defining a first hole and a second hole arrangement each extending from the outer surface to the bone-facing surface, the second hole arrangement spaced distally from the first hole along the longitudinal direction, the first hole configured to receive a first fixation member that is configured to purchase with the underlying bone, the second hole arrangement configured to receive at least one second fixation member that is configured to purchase with the underlying bone,
wherein the plate body is configured to pivot along an angulation range about the first fixation member extending through the first hole and into the underlying bone,
wherein the second hole arrangement extends laterally across the longitudinal axis, defines the angulation range, and is configured such that the at least one second fixation member is configured to substantially secure the bone plate to the underlying bone at any selected angulation within the angulation range, and
wherein the plate body defines a plurality of third holes that are each configured to receive a respective third fixation member that is configured to purchase with the underlying bone, wherein each of the plurality of third holes extend from the outer surface to the bone-facing surface and are spaced distally from the second hole arrangement.

12. The bone plate of claim 11 , wherein the angulation range is from about 10 degrees to about 20 degrees.

13. The bone plate of claim 11 , wherein the second hole arrangement comprises a single, curved guide slot that extends along a curved slot axis having at least a directional component along the lateral direction, and the curved guide slot is configured to receive the at least one second locking member.

14. The bone plate of claim 13 , wherein the curved slot axis has a radius in a range from about 25.0 mm to about 30.0 mm, as measured from a central axis of the first hole, wherein the radius is substantiall

Assignees

• Depuy Synthes Products Inc

Inventors

• Haidukewych George John
• Koay Kenny
• Smith Morgan Brett
• Liporace Frank Anthony
• Collinge Cory A

Classifications

• A61B17/8057

  the interlocking form comprising a thread · CPC title

• A61F2002/3686

  bent · CPC title

• A61F2/3609

  Femoral heads or necks; Connections of endoprosthetic heads or necks to endoprosthetic femoral shafts (A61F2/3601 takes precedence) · CPC title

• A61F2002/368

  with lateral apertures, bores, holes or openings, e.g. for reducing the mass, for receiving fixation screws or for communicating with the inside of a hollow shaft · CPC title

• A61F2/3662

  Femoral shafts · CPC title