Intra-osseous plate system and method

Patent metadata

Field	Value
Publication number	US-2024277389-A1
Application number	US-202418649799-A
Country	US
Kind code	A1
Filing date	Apr 29, 2024
Priority date	May 6, 2015
Publication date	Aug 22, 2024
Grant date	—

Abstract

An intra-osseous support structure can be used to fixate opposed portions of bone. In some examples, the intra-osseous support structure is positioned in openings formed in adjacent portions of bones. Fasteners are inserted through the bone portions to secure the intra-osseous support structure in the bones. Depending on the application, one or more external bone plates may also be applied to the bone portions. The external bone plate may be in compression while the intra-osseous support structure is in tension under load in situ.

First claim

1 . A method comprising:
performing an osteotomy on a metatarsal to separate the metatarsal into a first metatarsal portion and a second metatarsal portion; adjusting an alignment of the first metatarsal portion relative to the second metatarsal portion; placing a first portion of an intra-osseous support structure in the first metatarsal portion; and connecting a second portion of the intra-osseous support structure to the second metatarsal portion using at least one fastener.

2 . The method of claim 1 , wherein connecting the second portion of the intra-osseous support structure to the second metatarsal portion comprises inserting a screw through an outer surface of the second metatarsal portion.

3 . The method of claim 2 , further comprising forming a hole in the second metatarsal portion from the outer surface toward an opposite surface, wherein inserting the screw through the outer surface of the second metatarsal portion comprises inserting the screw into the hole.

4 . The method of claim 2 , wherein the second portion of the intra-osseous support structure comprises a threaded aperture, and inserting the screw through the outer surface of the second metatarsal portion comprises inserting the screw into the threaded aperture.

5 . The method of claim 1 , wherein connecting the second portion of the intra-osseous support structure to the second metatarsal portion using at least one fastener comprises inserting the at least one fastener through a thickness of the second metatarsal portion less than an entire thickness of the second metatarsal portion.

6 . The method of claim 5 , wherein the thickness of the second metatarsal portion is within a range from one-half to two-thirds of the entire thickness of the second metatarsal portion.

7 . The method of claim 1 , further comprising inserting a fastener into the first portion of the intra-osseous support structure.

8 . The method of claim 7 , wherein inserting the fastener into the first portion of the intra-osseous support structure comprises inserting the fastener through an outer surface of the first metatarsal portion.

9 . The method of claim 8 , wherein inserting the fastener through the outer surface of the first metatarsal portion comprises engaging the fastener with the intra-osseous support structure in the first metatarsal portion.

10 . The method of claim 7 , wherein inserting the fastener into the first portion of the intra-osseous support structure comprises inserting the fastener through a thickness of the first metatarsal portion less than an entire thickness of the first metatarsal portion.

11 . The method of claim 7 , wherein the fastener comprises a first fastener, and further comprising inserting a second fastener into the first portion of the intra-osseous support structure.

12 . The method of claim 1 , further comprising placing the second portion of the intra-osseous support structure in the second metatarsal portion.

13 . The method of claim 12 , further comprising forming an opening in the second metatarsal portion, wherein placing the second portion of the intra-osseous support structure in the second metatarsal portion comprises placing the second portion of the intra-osseous support structure in the opening in the second metatarsal portion.

14 . The method of claim 1 , wherein placing the first portion of the intra-osseous support structure in the first metatarsal portion and connecting the second portion of the intra-osseous support structure to the second metatarsal portion comprises fusing the first metatarsal portion to the second metatarsal portion.

15 . The method of claim 1 , further comprising forming an opening in the first metatarsal portion, wherein placing the first portion of the intra-osseous support structure in the first metatarsal portion comprises placing the first portion of the intra-osseous support structure in the opening in the first metatarsal portion.

16 . The method of claim 1 , wherein the at least one fastener comprises two fasteners, and connecting the second portion of the intra-osseous support structure to the second metatarsal portion using at least one fastener comprises connecting the second portion of the intra-osseous support structure to the second metatarsal portion using two fasteners.

17 . The method of claim 1 , wherein the metatarsal is a first metatarsal.

18 . A method comprising:
performing an osteotomy on a metatarsal to separate the metatarsal into a first metatarsal portion and a second metatarsal portion; adjusting an alignment of the first metatarsal portion relative to the second metatarsal portion; and fixating the first metatarsal portion relative to the second metatarsal portion for fusion using a structure that includes a first portion configured to be positioned intra-osseously and a second portion that includes at least one aperture configured to receive a screw, wherein fixating the first metatarsal portion relative to the second metatarsal portion comprises inserting the first portion of the structure within the first metatarsal portion and screwing at least one screw into the at least one aperture of the second portion of the structure and into the second metatarsal portion.

19 . The method of claim 18 , wherein inserting the first portion of the structure within the first metatarsal portion comprises inserting the first portion of the structure within cancellous bone of the first metatarsal portion.

20 . The method of claim 18 , wherein:
the metatarsal is a first metatarsal; the at least one aperture comprises two apertures; the at least one screw comprises two screws; and screwing at least one screw into the at least one aperture of the second portion of the structure and into the second metatarsal portion comprises screwing two screws into the two apertures of the second portion of the structure and into the second metatarsal portion.

Assignees

• Treace Medical Concepts Inc

Inventors

• Brumfield David L
• Dayton Paul
• Bays F Barry
• Ferguson Joe W

Classifications

• A61B17/0642

  for bones, e.g. for osteosynthesis or connecting tendon to bone · CPC title

• A61B17/8872

  Instruments for putting said fixation devices against or away from the bone (A61B17/7074, A61B17/808 take precedence) · CPC title

• A61B17/86

  Pins or screws {or threaded wires; nuts therefor (A61B17/72 take precedence)} · CPC title

• A61B17/8095

  Wedge osteotomy devices · CPC title

• A61B17/8014

  the extension or compression force being caused by interaction of the plate hole and the screws · CPC title