Washer Plate

Patent metadata

Field	Value
Publication number	US-2016206356-A1
Application number	US-201514599419-A
Country	US
Kind code	A1
Filing date	Jan 16, 2015
Priority date	Jan 16, 2015
Publication date	Jul 21, 2016
Grant date	—

Abstract

A plate for treating a bone includes a plate body extending along a longitudinal axis from a first end to a second end and being sized, shaped and contoured to be positioned along a desired surface of a bone. The plate also includes a slotted opening extending through the plate body and defined by a first portion sized and shaped to permit a head portion of a bone fixation element fixed to the bone to be passed therethrough and a second elongated portion extending along the longitudinal axis from the first portion in communication with the first portion, the second portion sized to prevent the head portion of the bone fixation element from being passed therethrough so that, when the head portion of the bone fixation element is received through the first portion, the plate is slidable relative thereto such that the second portion engages the head portion of the bone fixation element.

First claim

1 . A plate for treating a bone, comprising:
a plate body extending along a longitudinal axis from a first end to a second end and being sized, shaped and contoured to be positioned along a desired surface of a bone; a slotted opening extending through the plate body from a first surface which, when the plate is positioned along the desired surface of the bone faces away from the bone, to a second surface which, when the plate is positioned along the desired surface faces toward the bone, the slotted opening defined by a first portion sized and shaped to permit a first head portion of a first bone fixation element fixed to the bone to be passed therethrough and a second elongated portion extending along the longitudinal axis from the first portion in communication with the first portion, the second portion sized to prevent the first head portion of the first bone fixation element from being passed therethrough so that, when the first head portion of the first bone fixation element is received through the first portion, the plate is slidable relative thereto such that the second portion engages the first head portion of the first bone fixation element; and a second hole extending through the plate body from the first surface to the second surface and being open to an exterior of the plate body via a lateral opening, the second hole sized and shaped to slidably engage a second head portion of a second bone fixation element via the lateral opening.

2 . (canceled)

3 . The plate of claim 1 , wherein the second elongated portion extends from the first portion toward the second end of the plate body and the lateral opening is at the first end of the plate body.

4 . The plate of claim 1 , wherein the second elongated portion extends from the first portion toward the first end of the plate body and the lateral opening is at the second end of the plate body.

5 . The plate of claim 1 , further comprising a plurality of locking holes extending through the plate body from the first surface to the second surface, each of the plurality of locking holes configured to receive a locking bone fixation therein at a user-selected angle relative to a central axis thereof.

6 . The plate of claim 5 , wherein a first one of the plurality of locking holes extends through the plate body on a first side of the longitudinal axis and a second one of the plurality of locking holes extends through the plate body on a second side of the longitudinal axis opposite the first side.

7 . The plate of claim 1 , wherein a longitudinal edge of the plate body is tapered toward the first end.

8 . The plate of claim 1 , wherein a distance between longitudinal edges of a first portion of the plate body is larger than a distance between longitudinal edges of a second portion of the plate body.

9 . A system for treating a bone, comprising:
an intramedullary nail extending longitudinally from a first end to a second end and including a nail locking hole extending transversely therethrough; a plate sized, shaped and contoured to be positioned along a surface of a bone through which the intramedullary nail is inserted, the plate including: (1) a slotted opening extending therethrough from a first surface which, when the plate is positioned along the desired surface faces toward the bone, the slotted opening defined by a first portion and a second portion open in communication with one another, the first portion sized and shaped to permit a first head portion of a first bone fixation element inserted into the bone and through the nail locking hole to be passed therethrough, the second portion extending longitudinally from the first portion and being sized to prevent the first head portion of the first bone fixation element from being passed therethrough so that, when the first head portion of the first bone fixation element is received through the first portion, the plate is slidable relative thereto such that the second portion engages the first head portion of the first bone fixation element; and (2) a second hole extending through the plate body from the first surface to the second surface and being open to an exterior of the plate body via a lateral opening, the second hole sized and shaped to slidably engage a second head portion of a second bone fixation element via the lateral opening.

10 . (canceled)

11 . The system of claim 9 , wherein the second hole includes a concave surface extending about a periphery thereof.

12 . The system of claim 9 , further comprising an insert received within a channel extending longitudinally through the intramedullary nail, the insert extending along a portion of the intramedullary nail through which the nail locking hole extends to stabilize a locking fixation element received within the nail locking hole.

13 . The system of claim 9 , wherein the second portion of the slotted opening includes a concave surface extending along the first surface about a periphery thereof.

14 . The system of claim 9 , further comprising a plurality of plate locking holes extending through the plate body from the first surface to the second surface, each of the plurality of plate locking holes configured to receive a locking bone fixation element therein at a user-selected angle relative to a central axis thereof.

15 . The system of claim 14 , wherein a first one of the plurality of plate locking holes extends through the plate body on a first side of the longitudinal axis and a second one of the plurality of plate locking holes extends through the plate body on a second side of the longitudinal axis opposite the first side.

16 . A method for treating a bone, comprising:
positioning a plate along a surface of a bone such that a head portion of a first bone fixation element fixed to the bone is received within a first portion of a slotted opening extending through the plate; and sliding the plate longitudinally relative to the bone such that the head portion of the first bone fixation element engages a second portion of the slotted opening which is open to and in communication with the first portion.

17 . The method of claim 16 , wherein, when the plate is slid longitudinally relative to the bone, a head portion of a second bone fixation element engages a second hole extending through the plate body via a lateral opening.

18 . The method of claim 16 , further comprising inserting an intramedullary nail into a medullary canal of the bone and inserting the bone fixation element into a nail locking hole thereof to fix the intramedullary nail relative to the bone until the head portion of the bone fixation element is spaced apart from the bone by a distance sufficient to permit the head portion to be passed through the first portion of the slotted opening and beyond a surface of the bone plate facing away from the bone.

19 . The method of claim 16 , further comprising unthreading the bone fixation element so that the head portion of the bone fixation element is spaced from the bone by a distance sufficient to permit the head portion to be passed through the first portion of the slotted opening and beyond a surface of the bone plate facing away from the bone.

20 . The method of claim 16 , further comprising inserting a first locking element through a first plate locking hole extending through a portion of the plate on a first side of a longitudinal axis thereof and inserting a second locking element through a second plate locking hole extending through a portion of the plate on a second side of the longitudinal axis opposite the first.

Assignees

• Depuy Synthes Products Inc

Inventors

• Koay Kenny
• Wahl Michael
• Haag Rene
• Limouze Robert
• Haidukewych George
• Ziran Bruce H
• Collinge Cory A
• Liporace Frank A

Classifications

• A61B17/8052 Primary

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

• A61B17/7241

  the nail having separate elements through which screws pass · CPC title

• A61B17/8061

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

• A61B17/72 Primary

  Intramedullary devices, e.g. pins or nails · CPC title

• A61B17/80

  Cortical plates {, i.e. bone plates; Instruments for holding or positioning cortical plates, or for compressing bones attached to cortical plates} · CPC title