Bone stabilization systems

Patent metadata

Field	Value
Publication number	US-11058467-B2
Application number	US-201916444345-A
Country	US
Kind code	B2
Filing date	Jun 18, 2019
Priority date	Mar 13, 2017
Publication date	Jul 13, 2021
Grant date	Jul 13, 2021

Abstract

Bone plates for engaging bone members are described herein. The bone plates can receive one or more screws to secure the bone plates to an underlying bone member. The one or more screws can be inserted into bone plate holes that can be considered locking or non-locking. The bone plates described herein can have particular combinations of locking and/or non-locking holes. In addition, instruments such as distal and proximal aiming guides can accompany the bone plates to guide one or more screws into the bone plates.

First claim

The invention claimed is:

1. A method for treating a fracture in a bone, comprising: placing a bone plate on the bone, wherein the bone plate comprises a proximal end, a distal end, a head portion, a neck portion and a shaft portion, wherein the head portion comprises a first row of openings and a second row of openings for receiving one or more fasteners therein, wherein the shaft portion comprises at least one additional opening for receiving a fastener therein; providing an aiming arm having a proximal end, a distal end, a first side, and a second side, the aiming arm comprising a plurality of openings, wherein each of the plurality of openings is spaced at predetermined intervals between the proximal end and the distal end; connecting an attachment guide to the first side of the proximal end of the aiming arm, wherein the attachment guide comprises at least one opening that is coaxial with an opening in the neck portion of the bone plate; passing an attachment post through the at least one opening of the attachment guide into the opening in the neck portion of the bone plate; and coupling a first end of the attachment post to the at least one opening in the attachment guide and a second end of the attachment post to the opening in the neck portion of the bone plate; and further coupling a proximal targeting guide to an attachment arm of the aiming arm, wherein the proximal targeting guide comprises openings that are coaxial with the first row of openings and the second row of openings in the head portion of the bone plate, wherein the proximal targeting guide comprises two holes that align with two pegs on the head portion of the bone plate in order to align the openings of the proximal targeting guide with the first row of openings and the second row of openings in the head portion of the bone plate.

2. The method of claim 1 , further comprising:
inserting a threaded shaft within an internal cavity in the in the attachment post.

3. The method of claim 2 , wherein the attachment post and the threaded shaft form a rigid connection between the bone plate and the attachment guide.

4. The method of claim 1 , wherein the second end of the attachment post includes at least one ball end pin and a stabilizing protrusion that engage with the neck portion of the bone plate to form a rigid connection between the threaded shaft, attachment post, and bone plate.

5. The method of claim 1 , wherein a bottom side of the at least one opening in the attachment guide is configured and dimensioned to receive a corresponding portion of the first end of the attachment post.

6. The method of claim 1 , further comprising:
attaching an attachment nut configured to a top side of the at least one opening in the attachment guide and the first end of the attachment post to form a rigid connection between the aiming arm, and the attachment post.

7. The method of claim 1 , wherein the aiming arm comprises a radiolucent material.

8. The method of claim 1 , further comprising:
connecting a proximal end of a tissue protection sleeve to one of the plurality of openings in the aiming arm; and
connecting a distal end of the tissue protection sleeve to a corresponding coaxial opening in the shaft portion of the bone plate.

9. The method of claim 8 , wherein the tissue protection sleeve comprises a head having a flexible arm that engages with a recess in one of the openings in the aiming arm.

10. The method of claim 8 , wherein the tissue protection sleeve includes a retention ledge that is engageable with an undercut in one of the openings in the aiming arm.

11. The method of claim 1 , wherein the aiming arm and the attachment guide are a unitary structure.

Assignees

• Globus Medical Inc

Inventors

• Lueth Jeffrey S
• Jansen David R
• Ward Kathryn M
• Machamer David

Classifications

• A61B17/1728 Primary

  for holes for bone plates or plate screws · CPC title

• A61B2017/0641

  having at least three legs as part of one single body · CPC title

• A61B17/0642

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

• A61B90/06

  Measuring instruments not otherwise provided for · CPC title

• A61B17/8047

  wherein the additional element surrounds the screw head in the plate hole (A61B17/8052 takes precedence) · CPC title