Patient-specific shoulder guide
AssigneeBiomet Manufacturing, LLC
InventorsThomas M. Vanasse, Robert Metzger
Life of this patent
Estimating the term…
Abstract
An orthopedic device for a shoulder joint includes a patient-specific alignment guide. The alignment guide includes a cap having a three-dimensional engagement surface customized in a pre-operative plan by computer imaging to be complementary and closely mate and conform to a humeral head of a proximal humerus of a patient. The alignment guide includes a tubular element extending from the cap and defining a longitudinal guiding bore for guiding an alignment pin at a patient-specific position and orientation determined in the pre-operative plan, and an orientation feature on the cap. The orientation feature is designed to orient the cap relative to the humeral head when the orientation feature is aligned with a landmark of the proximal humerus.
Claims20
-20. (canceled)
A patient-specific guide comprising:
- a body having a three-dimensional engagement surface customized in a pre-operative plan by computer imaging to be complementary and closely mate and conform to a portion of a head of a bone of a specific patient;
- an elongated tubular element extending from the body and defining a longitudinal guiding bore for guiding an alignment pin to secure the guide to the bone;
- and
- an orientation feature on the body, the orientation feature designed to orient the body relative to the head when the orientation feature is aligned with a landmark of the head.
The guide of claim 2 wherein the body, the orientation feature and the tubular element are configured to mount the guide to the head to guide the alignment pin at a patient-specific position and an orientation determined in the pre-operative plan.
A patient-specific guide comprising:
- a body having a three-dimensional engagement surface customized in a pre-operative plan by computer imaging to be complementary and closely mate and conform to a portion of a head of a bone of a specific patient;
- and
- an elongated tubular element extending from the body and defining a longitudinal guiding bore for guiding an alignment pin to secure the guide to the bone;
- wherein the body and the tubular element are configured to mount the guide to the head to guide a resection of the bone at a neck to remove the head
A method of preparing a head of a bone for an implant, the method comprising:
- mounting a patient-specific alignment guide including a curved body with a three-dimensional engagement surface custom-made by computer imaging to a complementary and closely conforming to the head of the bone;
- passing an alignment pin through a longitudinal guiding bore of a tubular element extending from the cap of the guide;
- inserting the alignment pin through the head;
- and
- resecting the head using the body as a guide thereby forming a resected surface.
Dependencies are inferred from the claim text.