Locking Web Plate

Patent metadata

Field	Value
Publication number	US-9974584-B2
Application number	US-201715711545-A
Country	US
Kind code	B2
Filing date	Sep 21, 2017
Priority date	Jun 30, 2014
Publication date	May 22, 2018
Grant date	May 22, 2018

Abstract

A bone plate for fixation to a phalanx includes a head extending from a first end to a second end and having first and second fixation element holes extending therethrough, a connection portion extending from the second end of the head to a third end along the central longitudinal axis, the connection portion including an oblong hole elongated in a direction parallel to the central longitudinal axis, and a shaft extending from the third end of the connection portion to a fourth end along the central longitudinal axis. The shaft includes third and fourth fixation element holes extending along the central longitudinal axis. The shaft includes a plurality of first projections and a plurality of second projections. The first and second projections include corresponding projection fixation element holes extending therethrough and being connected to the shaft. The first and second projections are alternatingly provided on the shaft.

First claim

What is claimed is:

1. A method for bone fixation, comprising:
provisionally positioning a bone plate over a phalanx, the bone plate including a head extending from a first end to a second end and having first and second fixation element holes extending therethrough along first and second fixation element hole axes, a connection portion extending from the second end of the head to a third end along the central longitudinal axis, the connection portion including an oblong hole elongated in a direction parallel to the central longitudinal axis, and at least one connection portion fixation element hole positioned laterally of the oblong hole and orthogonally to the central longitudinal axis; and a shaft extending from the third end of the connection portion to a fourth end along the central longitudinal axis, the shaft including third and fourth fixation element holes extending along the central longitudinal axis, the shaft including a plurality of first projections extending along a first lateral wall and a plurality of second projections extending along a second lateral wall, the first and second projections including corresponding projection fixation element holes extending therethrough, each of the first and second projections being connected to the shaft by a reduced diameter extension, wherein the reduced diameter extensions connect to the shaft at positions that alternate along the length of the shaft so that a first projection extends from a portion of the shaft between adjacent ones of the second projections;
bending the bone plate to conform to the anatomy of the phalanx, wherein the head is adjustable relative to the shaft about the oblong hole;
inserting a first fixation element into one of the first, second, third and fourth fixation element holes; and
inserting a second fixation element into a projection fixation element hole.

2. The method of claim 1 , wherein each of the plurality of first and second projections is individually adjustable relative to the shaft.

3. The method of claim 1 , wherein a fixation element is inserted into one of the first and second fixation element holes prior to the insertion of a fixation element into the third fixation element hole.

4. The method of claim 1 , wherein an outer periphery of the bone plate includes a plurality of notches formed as indentations on an outer wall of the bone plate, the notches aiding in adjustment of the bone plate to conform to the anatomy of the phalanx.

5. The method of claim 4 , wherein the notches are positioned between adjacent ones of the first, second, and third fixation element holes.

6. The method of claim 5 , wherein the notches are positioned between adjacent ones of the plurality of shaft fixation element holes.

7. The method of claim 5 , wherein the first, second and third fixation element holes and the shaft fixation element holes are variable angle holes.

8. The method of claim 1 , wherein the head is formed with a first contour conforming to a curvature of a metaphysis of a metacarpal and the shaft is formed with a second contour conforming to a contour of a diaphysis of the metacarpal, wherein the first contour is different from the second contour.

9. A method for bone fixation, comprising:
provisionally positioning a bone plate over a target bone, the bone plate including a head extending from a first end to a second end and having first and second fixation element holes extending therethrough along first and second fixation element hole axes, a connection portion extending from the second end of the head to a third end along the central longitudinal axis, the connection portion including an oblong hole elongated in a direction parallel to the central longitudinal axis, and at least one connection portion fixation element hole positioned laterally of the oblong hole and orthogonally to the central longitudinal axis; and a shaft extending from the third end of the connection portion to a fourth end along the central longitudinal axis, the shaft including third and fourth fixation element holes extending along the central longitudinal axis, the shaft including a plurality of first projections extending along a first lateral wall and a plurality of second projections extending along a second lateral wall, the first and second projections including corresponding projection fixation element holes extending therethrough and being connected to the shaft by a reduced diameter extension, wherein the reduced diameter extensions connect to the shaft at positions that alternate along the length of the shaft so that a first projection extends from a portion of the shaft between adjacent ones of the second projections and wherein a cross-section of the oblong hole is a figure-eight;
bending the bone plate to conform to the curvature of the bone, wherein the head is adjustable relative to the shaft along the central longitudinal axis;
inserting a first fixation element into one of the first, second, third and fourth fixation element holes; and
inserting a second fixation element into a projection fixation element hole.

10. The method of claim 9 , wherein the head is positioned over a metaphyseal region of the target bone.

11. The method of claim 10 , wherein the head is formed with a first contour conforming to a curvature of the metaphyseal region of the target bone and the shaft is formed with a second contour conforming to a contour of a diaphysis of the target bone, wherein the first contour is different from the second contour.

12. The method of claim 11 , wherein the contour forms a portion of an arc of a cylinder.

13. The method of claim 9 , wherein a width of the head is greater than a width of the connection portion and the shaft.

14. The method of claim 9 , wherein the first, second and third fixation element holes and the shaft fixation element holes are variable angle holes.

15. A method for bone fixation, comprising:
positioning a bone plate over a target bone, the bone plate including a head extending from a first end to a second end and having first and second fixation element holes extending therethrough along first and second fixation element hole axes, a connection portion extending from the second end of the head to a third end along the central longitudinal axis, the connection portion including an oblong hole elongated in a direction parallel to the central longitudinal axis, and at least one connection portion fixation element hole positioned laterally of the oblong hole and orthogonally to the central longitudinal axis; and a shaft extending from the third end of the connection portion to a fourth end along the central longitudinal axis, the shaft including third and fourth fixation element holes extending along the central longitudinal axis, the shaft including a plurality of first projections extending along a first lateral wall and a plurality of second projections extending along a second lateral wall, the first and second projections including corresponding projection fixation element holes extending therethrough and being connected to the shaft by a reduced diameter extension, wherein the reduced diameter extensions connect to the shaft at positions that alternate along the length of the shaft so that a first projection extends from a portion of the shaft between adjacent ones of the second projections wherein the first projections are angled toward the first end and the second projections are angled toward the second end;
bending the bone plate to conform to the curvature of the bone, wherein the head is adjustable relative to the shaft along the central longitudinal axis;
inserting a first fixation element into one of the

Assignees

• Depuy Synthes Products Inc

Inventors

• Hashmi Adam
• Rocci Mirco
• Kelly Lynn
• Fischer Fabienne

Classifications

• A61B17/8061 Primary

  specially adapted for particular bones (A61B17/70 and A61B17/74 take precedence) · CPC title

• A61B2017/564

  Methods for bone or joint treatment · CPC title

• A61B17/8052

  immobilised relative to screws by interlocking form of the heads and plate holes, e.g. conical or threaded · CPC title