PATIENT SPECIFIC GLENOID GUIDE

• US 20160361073A1
• Filed: 08/24/2016
• Published: 12/15/2016
• Est. Priority Date: 10/27/2011
• Status: Active Grant

• Current Assignee: Biomet Manufacturing, LLC (Zimmer Biomet Holdings, Inc.)
• Original Assignee: Biomet Manufacturing, LLC (Zimmer Biomet Holdings, Inc.)
• Inventors: Heilman, Benjamin P., Winslow, Nathan A., McDaniel, John M., Denham, Gregory J.
• Granted Patent: US 9,936,962 B2
• Time in Patent Office: Days
• US Class Current: 1/1
• CPC Class Codes: A61B 17/1739 specially adapted for particular parts of the body
• 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 2034/108 Computer aided selection or customisation of medical implants or cutting guides
• CPC Class Codes: A61F 2/4081 Glenoid components, e.g. cups
• CPC Class Codes: A61F 2002/4687 Mechanical guides for implantation instruments

Abstract

A patient-specific guide tool for guiding an object toward a glenoid face of a scapula of a patient for implantation of a shoulder prosthetic device is disclosed. The guide tool includes a guide portion that includes a guide surface. The guide surface is configured to guide movement of the object toward the glenoid face. Furthermore, the guide tool includes a patient-specific portion that is operably coupled to the glenoid portion. The patient-specific portion includes at least one patient-specific surface that is three-dimensionally contoured and that is configured to nest and closely conform to a corresponding surface of the scapula to thereby position the guide surface at a predetermined position relative to the glenoid face.

Claims

1-20. -20. (canceled)

21. A patient-specific guide for guiding an object toward a glenoid face of a scapula of a patient for implantation of a prosthetic device, the guide tool comprising:

a patient-specific portion having at least one patient-specific surface that is configured to nest and closely conform to a corresponding surface of the glenoid face to position the at least one patient-specific surface at a predetermined position relative to the glenoid face; and

a first tube and a second tube projecting from the patient-specific portion opposite the at least one patient-specific surface, the first tube and the second tube disposed at an angle from one another and each of the first tube and the second tube is configured to act as a guide surface for guiding at least one of a drill bit and a referencing object through to the patient-specific portion.

22. The guide of claim 21, wherein the at least one patient-specific surface is configured to engage and nest with an anterior rim of the glenoid face.

23. The guide of claim 21, wherein the at least one patient-specific surface is configured to nest with one or more of a superior, inferior and posterior portion of a rim of the glenoid face.

24. The guide of claim 21, wherein the first tube defines a longitudinally extending first opening and the second tube defines a longitudinally extending second opening.

25. The guide of claim 24, wherein the first tube defines one or more windows extending transversely therethrough, the one or more windows operatively configured to allow a user to view the drill bit moving through the first opening.

27. The guide of claim 21, wherein the first tube is configured to receive at least one of the drill bit and the referencing object used for the implantation of a normal shoulder prosthetic device.

28. The guide of claim 21, wherein the second tube is configured to receive at least one of the drill bit and the referencing object used for the implantation of a reverse shoulder prosthetic device.

29. The guide of claim 21, wherein the patient-specific guide is configured for use in both a normal shoulder implantation procedure and a reverse shoulder implantation procedure.

30. The guide of claim 21, further comprising a notch that extends through the patient-specific portion in a lateral-medial direction, the notch configured to provide visual reference of the glenoid face to ensure the patient-specific guide is properly positioned.

31. The guide of claim 21, further comprising:

an arm connected to and projecting away from the first tube; and

a second patient-specific portion connected to the arm and configured to engage and mate to an acromion of the scapula.

32. A patient-specific guide for guiding an object toward a glenoid face of a scapula of a patient for implantation of a prosthetic device, the guide tool comprising:

a patient-specific portion having at least one patient-specific surface that is configured to nest and closely conform to a corresponding surface of the glenoid face to position the at least one patient-specific surface at a predetermined position relative to the glenoid face; and

a first tube and a second tube projecting longitudinally from the patient-specific portion opposite the at least one patient-specific surface, the first tube defining a first opening that extends longitudinally along a length of the first tube from an end thereof to the patient-specific portion, the second tube defining a second opening that extends longitudinally along a length of the second tube from an end thereof to the patient-specific portion, the first opening and second opening allowing access for at least one of a drill bit and referencing object to the glenoid face through the patient-specific portion;

wherein the at least one patient-specific surface is configured to nest and closely conform to the corresponding surface of the glenoid face to locate at least one of the first and second openings in a predetermined manner relative to the glenoid face.

33. The guide of claim 32, wherein the at least one patient-specific surface is configured to engage and nest with an anterior rim of the glenoid face.

34. The guide of claim 32, wherein the at least one patient-specific surface is configured to nest with one or more of a superior, inferior and posterior portion of a rim of the glenoid face.

35. The guide of claim 32, wherein the first tube is configured to receive at least one of the drill bit and the referencing object used for the implantation of a normal shoulder prosthetic device.

36. The guide of claim 32, wherein the second tube is configured to receive at least one of the drill bit and the referencing object used for the implantation of a reverse shoulder prosthetic device.

37. The guide of claim 32, wherein the patient-specific guide is configured for use in both a normal shoulder implantation procedure and a reverse shoulder implantation procedure.

38. The guide of claim 32, wherein the first tube defines one or more windows extending transversely therethrough, the one or more windows operatively configured to allow a user to view the drill bit moving through the first opening, and wherein the second tube defines one or more windows extending transversely therethrough, the windows operatively configured to allow a user to view the drill bit moving through the first opening.

39. A patient-specific guide for guiding an object toward a glenoid face of a scapula of a patient for implantation of a prosthetic device, the guide tool comprising:

a patient-specific portion having at least one patient-specific surface that is configured to nest and closely conform to a corresponding surface of the glenoid face to position the at least one patient-specific surface at a predetermined position relative to the glenoid face; and

a first tube and a second tube projecting from the patient-specific portion opposite the at least one patient-specific surface, the first tube is configured to act as a first guide surface for guiding at least one of a drill bit and a referencing object through a first opening to the glenoid face, the second tube is configured to act as a second guide surface for guiding at least one of the drill bit and the referencing object through a second opening to the glenoid face;

wherein the at least one patient-specific surface is configured to nest and closely conform to the corresponding surface of the glenoid face to locate the first opening in a predetermined manner relative to the glenoid face for use during a normal shoulder implantation procedure and to locate the second opening in a predetermined manner relative to the glenoid face for use during a reverse shoulder implantation procedure.

40. The guide of claim 39, further comprising:

an arm connected to and projecting away from the first tube; and

a second patient-specific portion connected to the arm and configured to engage and mate to an acromion of the scapula.