Patient-specific glenoid depth control

• US 9,839,436 B2
• Filed: 04/09/2015
• Issued: 12/12/2017
• Est. Priority Date: 06/03/2014
• Status: Active Grant

• Current Assignee: Biomet Manufacturing, LLC (Zimmer Biomet Holdings, Inc.)
• Original Assignee: Biomet Manufacturing, LLC (Zimmer Biomet Holdings, Inc.)
• Inventors: Kehres, Clinton E., Winslow, Nathan A.
• Primary Examiner(s): Yang, Andrew
• Application Number:
  US14/682,325
• Publication Number:
  US 20150342622A1
• Time in Patent Office: 978 Days
• CPC Class Codes: A61B 17/1684 for the shoulder
• CPC Class Codes: A61B 17/1778 for the shoulder
• CPC Class Codes: A61B 2017/568 produced with shape and dimensions specific for an individual patient
• CPC Class Codes: A61B 2090/034 abutting on parts of the device itself
• CPC Class Codes: A61B 2090/062 penetration depth
• CPC Class Codes: A61F 2002/4662 for measuring penetration depth

Abstract

A system for reaming a bone including a guiding wire configured to be attached to the bone; a tubular depth guide configured to cover at least a portion of the guiding wire, the tubular depth guide including a first end configured to abut the bone, and a second end opposite the first end; a reaming device including an elongate recess therein that extends between a reaming tool of the reaming device and an interior of the reaming device, wherein the elongate recess is configured to receive each of the guiding wire and depth guide therein, the elongate recess includes a reduced diameter section that defines a shoulder, and the shoulder is designed to abut the second end of the tubular depth guide to control a depth to which the bone is reamed.

Claims

1. A system for reaming a bone, comprising:

a guiding wire configured to be attached to the bone;

a tubular depth guide configured to cover at least a portion of the guiding wire, the tubular depth guide including a first end configured to abut the bone, a second end opposite the first end, and having a patient-specific length;

a reaming device including an elongate recess therein that extends between a reaming tool of the reaming device and an interior of the reaming device; and

a depth control window formed in an exterior surface of the reaming device,

wherein the elongate recess is configured to receive each of the guiding wire and depth guide therein, and

during reaming of the bone, the depth control window is configured to provide visual access to the second end of the tubular depth guide to determine whether a patient-specific reaming depth has been reached.

2. The system for reaming a bone according to claim 1, wherein the elongate recess includes a reduced diameter section that defines a shoulder, and

the shoulder is designed to abut the second end of the tubular depth guide to control the reaming depth.

3. The system of claim 2, wherein the depth control window includes a first window and a second window separated by a rib.

4. The system of claim 3, wherein a location of the rib between the first and second windows corresponds to the shoulder.

5. The system of claim 1, wherein the length of the tubular depth guide corresponds to the patient-specific reaming depth.

6. The system of claim 1, further comprising a plurality of notches formed in the exterior surface about a periphery of the depth control window.

7. The system of claim 6, wherein each of the notches are configured to provide a visual indication of a reaming depth different from the patient-specific reaming depth.

8. A method for reaming a bone, comprising:

attaching a guiding wire to the bone;

covering at least a portion of the guiding wire with a tubular depth guide, the tubular depth guide including a patient-specific length extending between a first end configured to abut the bone and a second end opposite the first end;

reaming the bone with a reaming device, the reaming device including an elongate recess therein that is configured to receive each of the guiding wire and depth guide therein and extends between a reaming tool of the reaming device and an interior of the reaming device, and the reaming device including a depth control window formed in an exterior surface of the reaming device; and

viewing the second end of the tubular depth guide through the depth control window to determine whether a patient-specific reaming depth has been reached.

9. The method of claim 8, wherein the length of the tubular depth guide corresponds to a specific reaming depth.

10. The method of claim 8, wherein the elongate recess includes a reduced diameter section that defines a shoulder, and

the shoulder is configured to abut the second end of the tubular depth guide to control the reaming depth.

11. The method of claim 10, wherein the depth control window includes a first window and a second window separated by a rib, and a location of the rib between the first and second windows corresponding to a location of the shoulder;

and

the method further comprising completing reaming of the bone when the second end of the tubular depth guide reaches the shoulder.

12. The method of claim 8, wherein the reaming device includes a plurality of notches formed in the exterior surface about a periphery of the depth control window.

13. The method of claim 12, wherein each of the notches are configured to provide a visual indication of a reaming depth different from the patient-specific reaming depth.

14. A method for reaming a glenoid for an arthroplasty, comprising:

positioning a patient-specific glenoid guide proximate the glenoid, the glenoid guide including a first primary drill guide extending along a first axis and a second primary drill guide extending along a second axis;

selecting one of the first and second axes for orienting a guiding wire, and positioning a guiding wire in the glenoid that extends along the selected axis;

positioning a tubular depth guide over the guiding wire such that a first end of the depth guide abuts the bone and the guiding wire extends outward from a second of the depth guide;

positioning a reaming device over the guiding wire, and reaming the glenoid along the selected axis, the reaming device including an elongate recess therein that is configured to receive each of the guiding wire and depth guide therein and extends between a reaming tool of the reaming device and an interior of the reaming device, and the reaming device including a depth control window formed in an exterior surface of the reaming device; and

viewing the second end of the tubular depth guide through the depth control window to determine whether a patient-specific reaming depth has been reached.

15. The method of claim 14, wherein the depth control window includes a first window and a second window separated by a rib, and a location of the rib corresponding to the patient-specific reaming depth;

and

the method further comprises completing reaming of the bone when the second end of the tubular depth guide reaches the rib.

16. The method of claim 14, wherein a length of the tubular depth guide is patient-specific and corresponds to the patient-specific reaming depth.

17. The method of claim 14, wherein the elongate recess includes a reduced diameter section that defines a shoulder, and

the shoulder is configured to abut the second end of the tubular depth guide to control the reaming depth.

18. The method of claim 17, wherein the depth control window includes a first window and a second window separated by a rib, and a location of the rib between the first and second windows corresponding to a location of the shoulder;

and

the method further comprising completing reaming of the bone when the second end of the tubular depth guide reaches the shoulder.

19. The method of claim 14, wherein the depth control window includes a first window and a second window separated by a rib, and a location of the rib corresponds to the patient-specific reaming depth;

and

the method further comprises completing reaming of the bone when the second end of the tubular depth guide reaches the rib.

20. The method of claim 14, wherein the reaming device includes a plurality of notches formed in the exterior surface about a periphery of the depth control window.

21. The method of claim 20, wherein each of the notches are configured to provide a visual indication of a reaming depth different from the patient-specific reaming depth.