Orthopaedic instrument for securing a bone

Patent metadata

Field	Value
Publication number	US-9700438-B2
Application number	US-201414297559-A
Country	US
Kind code	B2
Filing date	Jun 5, 2014
Priority date	Apr 18, 2014
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

An orthopedic instrument for securing a bone includes a base plate, a cutting block removably coupled with an end of said base plate, and a V-shaped vice member slidingly coupled with the base plate and movable toward and away from the cutting block. The cutting block has a plurality of cutting slots, each of which has a predefined configuration. Further, the vice member is configured for centering the bone and applying a force against the bone toward the cutting block.

First claim

What is claimed is:

1. An orthopaedic instrument for securing a bone, comprising:
a base plate having an end;
a cutting block removably coupled with said end of said base plate, said cutting block having a plurality of cutting slots, each of said cutting slots having a predefined configuration; and
a V-shaped vice member slidingly coupled with said base plate and movable toward and away from said cutting block, said vice member configured for centering the bone and applying a force against the bone toward said cutting block.

2. The orthopaedic instrument according to claim 1 , said cutting block being configured for applying another force against the bone toward said base plate.

3. The orthopaedic instrument according to claim 2 , wherein said cutting block has a face that increasingly extends toward said V-shaped vice member as it extends away from a plane of said base plate.

4. The orthopaedic instrument according to claim 1 , said plurality of predefined cutting slots including a first set of cutting slots that are non-coplanar with said base plate and a second set of cutting slots which are coplanar with said base plate, each of said second set of cutting slots being positioned at a predefined distance from said base plate.

5. The orthopaedic instrument according to claim 4 , wherein said cutting block is configured to be rotatable 180 degrees to switch from said first set of cutting slots to said second set of cutting slots and vice versa.

6. The orthopaedic instrument according to claim 5 , said cutting block having a pair of opposing ends separated by at least one structural member, each of said pair of opposing ends being coupled with an opposing end of said structural member.

7. The orthopaedic instrument according to claim 6 , wherein said at least one structural member is sized and shaped to be received within at least one corresponding finger slot on said end of said base plate.

8. The orthopaedic instrument according to claim 2 , said cutting block having a through opening configured to slidingly receive a corresponding protrusion extending from said end of said base plate.

9. The orthopaedic instrument according to claim 1 , said V-shaped vice member further comprising a plurality of teeth extending from an interior surface of said V-shaped vice member, said interior surface being directed toward said cutting block.

10. The orthopaedic instrument according to claim 9 , wherein said plurality of teeth are arranged in a plurality of layers.

11. The orthopaedic instrument according to claim 10 , wherein said plurality of layers of said teeth includes at least a first layer and a second layer, said first layer being positioned above said second layer extending beyond an end of said second layer toward said cutting block.

12. The orthopaedic instrument according to claim 1 , said V-shaped vice member having a dovetail shaped mortise sized and shaped to slidingly receive a corresponding tenon of said base plate.

13. The orthopaedic instrument according to claim 1 , said V-shaped vice member being secured at a predetermined position with a fastener.

14. The orthopaedic instrument according to claim 1 , wherein the assembled instrument is configured for use in a first orientation for a horizontal cutting plane and a second orientation for a vertical cutting plane.

15. An orthopaedic instrument for securing a bone, comprising:
a base plate having an end;
a cutting block removably coupled with said end of said base plate and including a plurality of cutting slots having a predefined orientation, said cutting block being configured for applying a force against the bone toward said base plate; and
a V-shaped vice member slidingly coupled with said cutting block and movable toward and away from said cutting block with said base plate, said V-shaped vice member being configured for applying another force to the bone toward said base plate and for applying a third force to the bone toward said cutting block.

16. The orthopaedic instrument according to claim 15 , said vice being secured at a predetermined position with a fastener.

17. The orthopaedic instrument according to claim 16 , wherein the assembled orthopaedic instrument is configured for use in a first orientation for a horizontal cutting plane and a second orientation or a vertical cutting plane.

18. The orthopaedic instrument according to claim 15 , wherein said cutting block has a face that increasingly extends toward said V-shaped vice member as it extends away from a plane of said base plate.

19. The orthopaedic instrument according to claim 18 , wherein said plurality of predefined cutting slots includes a first set of cutting slots that are non-coplanar with said base plate and a second set of cutting slots which are coplanar with said base plate, each of said second set of cutting slots being positioned at a predefined distance from said base plate.

20. A method of producing a custom bone, the method comprising the steps of:
removably locking a cutting block to an end of a base plate, said cutting block having a plurality of cutting slots, each of said cutting slots having a predefined configuration;
slidably coupling a V-shaped vice member with said base plate such that said V-shaped vice member is movable toward and away from said cutting block;
inserting the bone between said V-shaped vice member and said base plate;
slidingly adjusting said V-shaped vice member to a position against the bone;
applying a first force with said V-shaped vice member against the bone toward said cutting block;
locking said V-shaped vice member into said position against said bone to secure the bone in position against said cutting block; and
custom shaping the bone.

Assignees

• Biomet Mfg Llc

Inventors

• Kehres Clinton
• Muir Nicholas
• O'Reilly Andrew
• Mcdaniel John

Classifications

• A61F2002/3096

  trimmed or cut to a customised size · CPC title

• A61B17/15

  Guides therefor · CPC title

• A61F2240/002

  Designing or making customized prostheses · CPC title

• B25B5/163

  Jaws or jaw attachments · CPC title

• B25B5/102

  with at least one jaw sliding along a bar · CPC title