Systems, apparatuses, and methods for correcting a bone defect

Patent metadata

Field	Value
Publication number	US-11660201-B2
Application number	US-201816170250-A
Country	US
Kind code	B2
Filing date	Oct 25, 2018
Priority date	Oct 25, 2018
Publication date	May 30, 2023
Grant date	May 30, 2023

Abstract

An implant having a unitary body includes an intramedullary portion and an extramedullary portion. The intramedullary portion is sized and structured to be received within an intramedullary canal of a first bone and defines a longitudinal axis. The extramedullary portion includes a surface defining an axis that is disposed at an angle with respect to the longitudinal axis. An aperture defined along the extramedullary portion is sized and configured to receive a fastener therein for coupling the extramedullary portion of the implant to a second bone.

First claim

What is claimed is:

1. A system, comprising:
an implant comprising:
a unitary body including an intramedullary portion and an extramedullary portion, the intramedullary portion having a cylindrical geometry sized and structured to be received within an intramedullary canal of a metatarsal, the intramedullary portion defining a longitudinal axis and includes at least one flat such that the intramedullary portion tapers at a first end, the extramedullary portion structured to be coupled to a second bone and defining an aperture and including a surface defining an axis, and the axis defined by the surface of the extramedullary portion is disposed at an oblique angle with respect to the longitudinal axis of the intramedullary portion;
an inserter comprising a body extending from a first end to a second end, wherein at least one end defines a pocket that is interconnected with a hole, wherein the pocket is sized and configured to receive at least a portion of the extramedullary portion therein, and wherein the first end of the inserter is positioned at an angle with respect to a longitudinal axis defined by the inserter such that, when the extramedullary portion of the implant is disposed within the pocket, the longitudinal axis of the intramedullary portion is parallel with the longitudinal axis defined by the inserter and the hole defined by the inserter aligns with the aperture defined by the implant; and

a threaded fastener, the threaded fastener sized and structured to be received within the aperture defined by the extramedullary portion of the implant.

2. The system of claim 1 , wherein a central axis defined by the aperture is positioned at an oblique angle with respect to the longitudinal axis defined by the intramedullary portion of the implant.

3. The implant system of claim 1 , wherein the surface of the extramedullary portion of the implant includes a planar surface.

4. The system of claim 3 , wherein the aperture defined by the extramedullary portion of the implant defines a central axis that is perpendicular to the planar surface.

5. The system of claim 4 , wherein the aperture defined by the extramedullary portion of the implant includes a number of intermittent threads that are configured to engage the threaded fastener.

6. The implant system of claim 1 , wherein the threaded fastener is one of a locking screw and a non-locking screw.

7. The implant system of claim 1 , further comprising a guide, wherein the guide includes:
a body extending from a first end to a second end, the body defining a hole extending through the body from the first end to the second end, wherein at least one of the first end and the second end is at least partially threaded for engaging a thread defined by the aperture defined by the implant.

8. The system of claim 1 , wherein the second end of the body of the inserter includes a flange that extends at an angle with respect to the longitudinal axis of the inserter and includes an impacting surface.

9. The system of claim 1 , wherein the extramedullary portion of the implant includes an enlarged, circular head that includes the aperture defined by the extramedullary portion of the implant.

10. A system, comprising:
a unitary implant including:
an intramedullary portion having a cylindrical shape that tapers to a blunt end, and
an extramedullary portion extending away from the intramedullary portion at an angle, the extramedullary portion including an enlarged circular head having a planar surface, the enlarged circular head defining an aperture including a number of intermittent threads;

a threaded fastener sized and structured to be received within the aperture defined by the enlarged circular head of the extramedullary portion of the unitary implant;
an inserter including:
a body extending from a first end to a second end, the first end of the body is positioned at an angle with respect to a longitudinal axis defined by the inserter and defines a pocket and a hole intersecting the pocket, the pocket sized and configured to receive the enlarged circular head of the extramedullary portion of the unitary implant such that, when the enlarged circular head of the extramedullary portion of the unitary implant is disposed within the pocket and the aperture defined by the enlarged circular head is aligned with the hole defined by the inserter, a longitudinal axis defined by the intramedullary portion of the unitary implant is disposed parallel to the longitudinal axis defined by the inserter; and

a guide having a coupling end, the coupling end sized and configured to be received in the aperture defined by the circular head of the extramedullary portion of the unitary implant and in the hole defined by the first end of the body of the inserter to couple the inserter to the implant.

11. The system of claim 10 , wherein the guide defines a guide hole that extends through the guide, the guide hole sized and dimensioned to guide a drill.

12. The system of claim 10 , wherein the coupling end of the guide includes a thread configured to engage at least one of the intermittent threads of the aperture defined by the enlarged circular head.

13. The system of claim 10 , wherein the threaded fastener includes at least one of a locking screw and a non-locking screw.

14. The system of claim 10 , wherein the second end of the body of the inserter includes an impacting surface.

Assignees

• Wright Medical Tech Inc

Inventors

• Korman Zachary
• Muller Erin
• Thoren Brian Robert
• Luttrell Paul
• Den Hartog Bryan D
• Kay David B
• Perera Anthony

Classifications

• A61F2002/4681

  by applying mechanical shocks, e.g. by hammering · CPC title

• A61F2310/00017

  Iron- or Fe-based alloys, e.g. stainless steel · CPC title

• A61F2310/00083

  Zinc or Zn-based alloys · CPC title

• A61B17/7291

  for small bones, e.g. in the foot, ankle, hand or wrist · CPC title

• A61F2002/4233

  for metatarso-phalangeal joints, i.e. MTP joints · CPC title