Systems and methods for intramedullary nail implantation

Patent metadata

Field	Value
Publication number	US-10307197-B2
Application number	US-201715441457-A
Country	US
Kind code	B2
Filing date	Feb 24, 2017
Priority date	Sep 22, 2016
Publication date	Jun 4, 2019
Grant date	Jun 4, 2019

Abstract

Intramedullary nails, systems, and methods. The intramedullary nail may include a generally elongate body extending from a first, distal end to a second, proximal end. The distal end may include one or more openings configured to receive one or more bone anchors that extend transversely through the distal end intramedullary nail, and thereby configured to secure the distal end of the nail. The proximal end may also include one or more openings configured to receive one or more bone anchors that extend transversely through the proximal end of the intramedullary nail, and thereby configured to secure the proximal end of the nail.

First claim

What is claimed is:

1. An intramedullary system configured to stabilize bone, the system comprising:
an intramedullary nail having:
a body elongated along a first axis, the body having a distal portion configured to facilitate entry into an intramedullary canal and a proximal portion opposite the distal portion, the body having a curvature in the anteroposterior direction and a bend in the medial-lateral direction, the body having an opening in the proximal portion, the opening having a shoulder and circumferential slot capable of non-threadably connecting to an insertion instrument;
a first aperture formed in the distal portion and transverse to the first axis;
a second aperture formed in the distal portion and transverse to the first axis;
a third aperture formed in the distal portion and transverse to the first axis;
a first elongated aperture formed in the distal portion and transverse to the first axis;
a fourth aperture formed in the distal portion and transverse to the first axis;
a fifth aperture formed in the distal portion and transverse to the first axis; and
a second elongated aperture formed in the distal portion and transverse to the first axis,
wherein the first aperture, the second aperture, the third aperture and the first elongated aperture are positioned on a first plane,
wherein the fourth aperture, the fifth aperture, and the second elongated aperture are positioned on a second plane,
wherein the first plane and the second planes are perpendicular.

2. The system of claim 1 , wherein the first, second, and third apertures are spaced apart from one another.

3. The system of claim 1 , wherein first and second apertures are threaded.

4. The system of claim 1 , wherein the first, second and third apertures are angled.

5. The system of claim 4 , wherein a degree of angle of the first, second and the third apertures are different.

6. The system of claim 4 , wherein a degree of angle of the first, second and the third apertures is equal.

7. The system of claim 1 , wherein a plurality of fastening devices are configured to be positioned within the first, second, third, fourth and fifth apertures.

8. The system of claim 1 , wherein first aperture, second apertures, and fourth aperture are threaded.

9. The system of claim 1 , wherein the first aperture, second aperture, third aperture, fourth aperture and fifth aperture are angled.

10. The system of claim 9 , wherein a degree of angle of the first, second and the third apertures are different.

11. The system of claim 10 , wherein a degree of angle of the first, second and the third apertures is equal.

12. The system of claim 1 , wherein a plurality of fastening devices are configured to be positioned within the first, second, third, fourth and fifth apertures.

13. The system of claim 1 , wherein the intramedullary nail is configured to be inserted into the intramedullary canal as an antegrade nail, a retrograde nail, a left nail, and a right nail.

14. The system of claim 1 , wherein the intramedullary nail includes a plurality of oblique openings formed in the proximal portion, the plurality of oblique openings configured to function for both a left nail and a right nail.

15. A system for inserting an intramedullary nail into a bone, the system comprising:
an intramedullary nail having a distal portion configured to facilitate entry into an intramedullary canal, a proximal portion opposite the distal portion, the proximal portion having an opening, the opening having a shoulder and circumferential slot capable of non-threadably connecting to an insertion tool, a first side surface extending between the proximal portion and the distal portion, a second side surface extending between the proximal portion and the distal portion, and a first aperture, a second aperture, and a third aperture formed at the distal portion extending through the intramedullary nail, the body having a curvature in the anteroposterior direction and a bend in the medial-lateral direction; and
the insertion tool comprising:
an aiming guide having a body with at least one support block,
wherein the at least one support block defines a guide sheath hole configured to receive a guide sheath therethrough, the guide sheath hole positioned such that, when the intramedullary nail is coupled to the insertion tool, the guide sheath hole substantially aligns with one of the first, second or third apertures in the intramedullary nail.

16. The system of claim 15 , wherein the first aperture, the second aperture, the third aperture and a first elongated aperture are positioned on a first plane.

17. The system of claim 15 , wherein the first and second apertures are threaded.

18. The system of claim 15 , wherein a fastening device is configured to be received within the first, second and third apertures.

19. An intramedullary nail comprising:
a body elongated along a first axis, the body having a distal portion configured to facilitate entry into an intramedullary canal, a proximal portion opposite the distal portion, the body having a curvature in the anteroposterior direction and a bend in the medial-lateral direction, the body having an opening in the proximal portion, the opening having a shoulder and circumferential slot capable of non-threadably connecting to an insertion instrument;
a first aperture formed in the distal portion and transverse to the first axis;
a second aperture formed in the distal portion and transverse to the first axis;
a third aperture formed in the distal portion and transverse to the first axis;
a first elongated aperture formed in the distal portion and transverse to the first axis;
a fourth aperture formed in the distal portion and transverse to the first axis;
a fifth aperture formed in the distal portion and transverse to the first axis; and
a second elongated aperture formed in the distal portion and transverse to the first axis,
wherein the first aperture, the second aperture, the third aperture and the first elongated aperture are positioned on a first plane,
wherein the fourth aperture, the fifth aperture, and the second elongated aperture are positioned on a second plane,
wherein the first plane and the second planes are perpendicular,
wherein the first elongated aperture is positioned proximal to the third aperture on the distal portion of the intramedullary nail.

20. The system of claim 19 , wherein the first, second, and third apertures are spaced apart from one another.

Assignees

• Globus Medical Inc

Inventors

• Hedgeland Mark
• Machamer David
• Jansen David R
• Rossney Mark
• Rowe David J
• Laird David

Classifications

• A61B17/7233

  with special means of locking the nail to the bone · CPC title

• A61B17/1668

  for the upper femur (A61B17/164 takes precedence) · CPC title

• A61B17/1721

  for applying pins along or parallel to the axis of the femoral neck · CPC title

• A61B17/1725

  for applying transverse screws or pins through intramedullary nails or pins · CPC title

• A61B17/8875

  Screwdrivers, spanners or wrenches · CPC title