Contourable plate

Patent metadata

Field	Value
Publication number	US-10531900-B2
Application number	US-201414530902-A
Country	US
Kind code	B2
Filing date	Nov 3, 2014
Priority date	Apr 17, 2014
Publication date	Jan 14, 2020
Grant date	Jan 14, 2020

Abstract

A medical device that may include a main body and a plurality of hooks. The main body includes a length extending along an axis between first and second ends. The main body may be deformable such that the axis forms an arch shape corresponding to a shape of a mandibular jaw or a maxillary jaw. The main body may include a plurality of sections each having first and second edges defining a first width and a plurality of openings disposed between the first and second edges and extending through a thickness of the main body. The main body may include a plurality of recessed portions defining a second width disposed between adjacent ones of the sections. Each of the hooks may extend from a corresponding one of the sections.

First claim

What is claimed is:

1. A medical device including a main body and a plurality of hooks,
the main body having a length extending along a longitudinal axis between first and second ends,
the main body being deformable such that the longitudinal axis forms an arch shape corresponding to a shape of a mandibular jaw or a maxillary jaw,
the main body having a plurality of sections each having top and bottom edges defining a first width and a plurality of openings disposed between the top and bottom edges of each section of the plurality of sections and extending through a thickness of the main body,
the main body including a plurality of recessed portions defining a second width disposed between adjacent sections of the plurality of sections,
each hook of the plurality of hooks extending from a corresponding section of the plurality of sections, each hook of the plurality of hooks extending from the bottom edge of the corresponding section to a terminal hook edge, wherein the terminal hook edge is positioned below the plurality of openings.

2. The medical device of claim 1 , wherein the plurality of hooks extend away from the longitudinal axis.

3. The medical device of claim 1 , wherein the longitudinal axis is curved.

4. The medical device of claim 1 , wherein each hook of the plurality of hooks includes a stem portion, a hooked lip and an elongated leg extending between the stem portion and the hooked lip wherein the stem portion of each hook of the plurality of hooks is disposed at an angle relative to a corresponding section and a corresponding leg.

5. The medical device of claim 1 , further comprising a plurality of threaded fasteners configured to be driven through the plurality of openings, wherein a thickness of the main body is less than or equal to a pitch of threads of the fasteners.

6. The medical device of claim 1 , wherein the main body is bendable from a pre-deployment configuration to a deployment configuration, and wherein in the pre-deployment configuration, the plurality of sections and the main body cooperate to define a flat plane and the main body defines a continuous curve about a first axis that extends perpendicular to the flat plane.

7. The medical device of claim 6 , wherein in the deployment configuration, at least a portion of the main body is curved about a second axis perpendicular to the first axis and the main body is shaped to correspond to a shape of a mandible or a maxilla.

8. The medical device of claim 1 , further comprising a plurality of fasteners configured to be received in the plurality of openings, and wherein each fastener of the plurality of fasteners includes a head and a shaft having a first threaded portion and a second threaded portion, the second threaded portion having threads with a larger lead than threads of the first threaded portion.

9. The medical device of claim 8 , wherein the threads of the second threaded portion have larger major and minor diameters than the threads of the first threaded portion.

10. The medical device of claim 9 , wherein each fastener of the plurality of fasteners includes an annular locking groove disposed between the head and the second threaded portion, and wherein the second threaded portion is disposed between the head and the first threaded portion.

11. The medical device of claim 10 , wherein an innermost peripheral edge of each opening of the plurality of openings is configured to be received in the annular locking groove.

12. The medical device of claim 1 , wherein each opening of plurality of openings includes a chamfered surface extending around a periphery thereof.

13. An intermaxillary fixation assembly comprising:
first and second contourable plates each having a main body and a plurality of hooks; the main body having a length extending along an axis between first and second ends, the main body being deformable such that the axis forms an arch shape corresponding to a shape of a mandibular jaw or a maxillary jaw, the main body having a plurality of sections each having top and bottom edges defining a first width and a plurality of openings disposed between the top and bottom edges of each section of the plurality of sections and extending through a thickness of the main body, the main body including a plurality of recessed portions defining a second width disposed between adjacent sections of the plurality of sections, wherein each section of the plurality of sections is positioned between adjacent recessed portions of the plurality of recessed portions, each of the plurality of hooks extending from a corresponding section of the plurality of sections, each hook of the plurality of hooks extending from the bottom edge of the corresponding section to a hook terminal edge, wherein the terminal hook edge is positioned below the plurality of openings;
a plurality of threaded fasteners adapted to threadably engage the plurality of openings and secure the first and second plates to a patient's maxilla and mandible, respectively; and
at least one wire adapted to be attached to at least one hook of the plurality of hooks of the first plate and at least one hook of the plurality of hooks of the second plate.

14. The intermaxillary fixation assembly of claim 13 , wherein each fastener of the plurality of fasteners includes a head and a shaft having a first threaded portion and a second threaded portion, the first threaded portion having threads with a smaller lead than threads of the second threaded portion.

15. The intermaxillary fixation assembly of claim 13 , wherein each hook of the plurality of hooks includes a stem portion, a hooked lip and an elongated leg extending between the stem portion and the hooked lip, wherein the stem portion of each hook of the plurality of hooks is disposed at an angle relative to a corresponding leg and the main body of a corresponding one of the first and second plates.

16. An intermaxillary fixation assembly comprising:
an elongated, contourable bar having a plurality of hooks and a plurality of mounting tabs, each mounting tab of the plurality of mounting tabs including at least one aperture, wherein at least one hook of the plurality of hooks is positioned beneath the at least one aperture of a mounting tab of the plurality of mounting tabs, wherein the at least one aperture comprises a pair of elongated apertures separated from each other by a support strut, wherein each mounting tab of the plurality of mounting tabs is spaced apart from each other; and
a plurality of fasteners configured to be received in the at least one aperture, each fastener of the plurality of fasteners includes a head and a shaft having a first threaded portion and a second threaded portion, the first threaded portion having threads with a smaller lead than threads of the second threaded portion.

17. The intermaxillary fixation assembly of claim 16 , wherein each fastener of the plurality of fasteners includes an annular locking groove disposed between the head and the second threaded portion, and wherein the second threaded portion is disposed between the head and the first threaded portion.

18. The intermaxillary fixation assembly of claim 16 , wherein the threads of the second threaded portion have larger major and minor diameters than the threads of the first threaded portion.

19. The intermaxillary fixation assembly of claim 17 , wherein an innermost peripheral edge of each aperture of the plurality of apertures is configured to be received in the annular locking groove.

20. The intermaxillary fixation assembly of claim 16 ,

Assignees

• Zimmer Biomet Cmf & Thoracic Llc

Inventors

• Ghobadi Shahin
• Garcia Saddy R
• Hausman Adam
• Robinson Shawn
• Billard Max
• Luby Ryan N

Classifications

• A61B17/8085

  with pliable or malleable elements or having a mesh-like structure, e.g. small strips (A61B17/8071, A61B17/8076 take precedence) · CPC title

• A61B17/8071 Primary

  for the jaw · CPC title

• A61B17/8023

  Variable length plates adjustable in both directions · CPC title

• A61B2017/681

  Alignment, compression, or distraction mechanisms · CPC title

• A61B17/863

  with thread interrupted or changing its form along shank, other than constant taper · CPC title