IP Library › Granted Patent US 12,256,944
Granted Patent B2
US 12,256,944 · App. 18/418,430 · Granted Mar 25, 2025

Patient specific surgical guide locator and mount

Inventors: Michael Carroll (Memphis, TN); Richard Obert (Germantown, TN); Paul Stemniski (Arlington, TN)
Assignee: MICROPORT ORTHOPEDIC HOLDINGS, INC.
A61B17/155A61B17/151A61B17/154A61B17/157A61B34/10B29C64/386G05B15/02G06F30/00A61B2017/0023A61B2017/00526A61B2017/568A61B2034/104A61B2034/108B33Y50/02B33Y70/00B33Y80/00Y10T29/49Y10T29/49863
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Quick Facts
Patent No.
US 12,256,944
App. No.
18/418,430
Granted
Mar 25, 2025
Kind
B2
Abstract

A resection guide locator includes a bone engagement portion with surfaces that are complementary to the surface topographies of a bone to be resected during surgery. A housing includes a socket defined by a resilient annular wall that is sized and arranged so to accept a resection guide by press-fit to thereby position and hold the resection guide within the socket. The resection guide is maintained in a predetermined, preferred position while the surfaces are releasably locked in position on the bone. A method is disclosed for forming and using the resection guide locator.

Claims (28)

1. A resection system, comprising:

a locator including a body having a pair of wings that outwardly extend from the body wherein each wing of the pair of wings defines a respective through bore, the body having a bone engagement portion with a surface comprising localized features that are complementary to localized surface topography features of a tibial surface that is to be resected, the body defining a recess and a slot within the recess; and

a guide having a body defining a slot, at least a portion of the guide body sized and configured to be received within the recess defined by the locator,

wherein the slot defined by the guide aligns with the slot defined by the locator when the guide is received within the recess defined by the locator.

2. The resection system of claim 1 , wherein the recess is a socket defined by an annular wall.

3. The resection system of claim 1 , wherein the locator is formed from a resilient polymer material and the resection guide is formed from a metal.

4. The resection system of claim 1 , wherein the localized surface features of the bone engagement portion are complementary to the surface topography localized features of an articular surface.

5. The resection system of claim 1 , wherein the surface localized features of the bone engagement portion are complementary to the localized features surface topography of a cortical surface of a tibia.

6. The resection system of claim 5 wherein the locator body includes a central post extending in a first direction, and a pair of arms extending from the central post and away from one another.

7. The resection system of claim 6 , wherein the locator includes a pilot block extending away from the central post, the pilot block defining the recess in combination with first and second pylons and a support block.

8. The resection system of claim 7 , wherein the slot defined by the locator body is a first slot, the locator body defining second and third slots that extend in respective directions that are angled with respect to a direction in which the first slot extends.

9. The resection system of claim 8 , wherein the guide body includes a bridge beam in which the slot is defined, the bridge beam extending between and connecting first and second arms that extend away from the bridge beam at different angles.

10. The resection system of claim 9 , wherein the slot defined by the bridge beam of the body is a first slot, and wherein the first and second arms each define a respective slot.

11. The resection system of claim 10 , wherein the slots defined by the first and second arms of the guide body align with the second and third slots defined by the locator body when the guide is disposed within the recess defined by the resection guide locator.

12. A resection system, comprising:

a locator including a body having a first arm and a second arm that extend outwardly from the body wherein each of the first and second arms defines a through bore, the body having a bone engagement portion with a surface comprising localized features that are complementary to localized surface topography features of a tibial surface that is to be resected, the body defining a recess and a slot within the recess; and

a guide having a body defining a slot, at least a portion of the guide body sized and configured to be received within the recess defined by the locator,

wherein the slot defined by the guide aligns with the slot defined by the locator when the guide is received within the recess defined by the locator.

13. The resection system of claim 12 , wherein the recess is a socket defined by an annular wall.

14. The resection system of claim 12 , wherein the locator is formed from a resilient polymer material and the resection guide is formed from a metal.

15. The resection system of claim 12 , wherein the localized surface features of the bone engagement portion are complementary to the surface topography localized features of an articular surface.

16. The resection system of claim 12 , wherein the localized surface features of the bone engagement portion are complementary to the localized surface topography of a cortical surface of a tibia.

17. The resection system of claim 16 wherein the locator body includes a central post extending in a first direction, and a pair of arms extending from the central post and away from one another.

18. The resection system of claim 17 , wherein the locator includes a pilot block extending away from the central post, the pilot block defining the recess in combination with a first pylon and a second and a support block.

19. The resection system of claim 18 , wherein the slot defined by the locator body is a first slot, the locator body defining second and third slots that extend in respective directions that are angled with respect to a direction in which the first slot extends.

20. The resection system of claim 19 , wherein the guide body includes a bridge beam in which the slot is defined, the bridge beam extending between and connecting first and second arms that extend away from the bridge beam at different angles.

21. The resection system of claim 20 , wherein the slot defined by the bridge beam of the body is a first slot, and wherein the first and second arms each define a respective slot.

22. The resection system of claim 21 , wherein the slots defined by the first and second arms of the guide body align with the second and third slots defined by the locator body when the guide is disposed within the recess defined by the resection guide locator.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Feb 18, 2025
From: CARROLL, MICHAEL; OBERT, RICHARD; STEMNISKI, PAUL
To: WRIGHT MEDICAL TECHNOLOGY, INC.
Reel/Frame 070245/0469 →
NUNC PRO TUNC ASSIGNMENT Recorded Feb 18, 2025
From: WRIGHT MEDICAL TECHNOLOGY, INC.
To: MICROPORT ORTHOPEDICS HOLDINGS INC.
Reel/Frame 070245/0733 →
Continuity (7)
Continuation 17482863 · Sep 23, 2021
Continuation 15881340 · Jan 26, 2018
Continuation 14707617 · May 8, 2015
Division 13465547 · May 7, 2012
Division 12710898 · Feb 23, 2010
Provisional Application 61154845 · Feb 24, 2009
Related Publication 20240156468A1 · May 16, 2024
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