US 12,419,689 B2
Patient-specific registration jig and associated method for registering an orthopaedic surgical instrument to a patient
Thomas S. Camino, Fort Wayne, IN (US); and Barry A. Schnieders, Walkerton, IN (US)
Assigned to DEPUY SYNTHES PRODUCTS, INC., Raynham, MA (US)
Filed by DEPUY SYNTHES PRODUCTS, INC., Raynham, MA (US)
Filed on Jun. 29, 2021, as Appl. No. 17/362,062.
Prior Publication US 2022/0409286 A1, Dec. 29, 2022
Int. Cl. A61B 34/20 (2016.01); A61B 17/92 (2006.01); A61B 34/10 (2016.01); G06T 7/149 (2017.01); G06T 7/30 (2017.01); G06T 7/70 (2017.01)
CPC A61B 34/20 (2016.02) [A61B 17/92 (2013.01); A61B 34/10 (2016.02); G06T 7/149 (2017.01); G06T 7/30 (2017.01); G06T 7/70 (2017.01); A61B 2034/102 (2016.02); A61B 2034/105 (2016.02); A61B 2034/108 (2016.02); A61B 2034/2055 (2016.02); G06T 2207/30008 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A patient-specific registration jig for registering an orthopaedic surgical instrument with a bony anatomy of a patient, the patient-specific registration jig comprising:
a head having a patient-specific contact surface configured to contact a portion of the patient's bony anatomy and a multi-part base, wherein the patient-specific contact surface includes a patient-specific negative contour configured to receive a portion of the patient's bony anatomy; and
an adaptor coupled to the multi-part base of the head and extending longitudinally therefrom, wherein the adaptor includes (i) an elongated shank having a first end coupled to the head and a second end and (ii) an adaptor end attached to the second end of the elongated shank and configured to be received by a clutch of the orthopaedic surgical instrument,
wherein the multi-part base is adjustable to modify an inclination angle or a version angle of the head relative to the adaptor and comprises a fixed base connected to the head, a first movable wedge, and a second movable wedge interposed between the fixed base and the first movable wedge,
wherein the first movable wedge includes a proximal planar base surface connected to the adaptor and a distal planar angled surface opposite the proximal planar base surface, wherein the distal planar angled surface is angled relative to the proximal planar base surface such that the first movable wedge has a wedge shaped side profile,
wherein the second movable wedge includes a distal planar base surface in contact with the fixed base and a proximal planar angled surface opposite the distal planar base surface, wherein the proximal planar angled surface is angled relative to the distal planar base surface such that the second movable wedge has a wedge shaped side profile, and
wherein the distal planar angled surface of the first movable wedge and the proximal planar angled surface of the second movable surface are in contact and configured to rotate on each other when the first movable wedge and second movable wedge are moved relative to each other.