Locking web plate

Patent metadata

Field	Value
Publication number	US-9795425-B2
Application number	US-201414320511-A
Country	US
Kind code	B2
Filing date	Jun 30, 2014
Priority date	Jun 30, 2014
Publication date	Oct 24, 2017
Grant date	Oct 24, 2017

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 bone plate sized and shaped for fixation to a phalanx, comprising: 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 first and second projections are alternatingly provided on the shaft.

2. The bone fixation plate 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.

3. The bone fixation plate of claim 2 , wherein the notches are positioned between adjacent ones of the first, second, and third fixation element holes.

4. The bone fixation plate of claim 3 , wherein the notches are positioned between adjacent ones of the plurality of shaft fixation element holes.

5. The bone fixation plate of claim 3 , wherein the first, second, and third fixation element holes and the shaft fixation element holes are variable angle holes.

6. The bone fixation plate of claim 5 , wherein the contour forms a portion of an arc of a cylinder.

7. The bone fixation plate 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.

8. The bone fixation plate of claim 1 , wherein a width of the head is greater than a width of the connection portion and the shaft.

9. A bone plate sized and shaped for fixation to a phalanx, comprising:
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
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 first and second projections are alternatingly provided on the shaft,
wherein a cross-section of the oblong hole is a figure-eight.

10. A bone plate sized and shaped for fixation to a phalanx, comprising:
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
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 first and second projections are alternatingly provided on the shaft,
wherein the first projections are angled toward the first end and the second projections are angled toward the second end.

11. The bone fixation plate of claim 10 , wherein a longitudinal axis of the first projections forms a first angle with the central longitudinal axis and a longitudinal axis of the second projections forms a second angle with the central longitudinal axis.

12. The bone fixation plate of claim 11 , wherein the first angle is the same as the second angle.

Assignees

• Depuy Synthes Products Inc

Inventors

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

Classifications

• A61B17/8052

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

• 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