PATIENT-SPECIFIC ACETABULAR GUIDES AND ASSOCIATED INSTRUMENTS
First Claim
1. A method for preparing an acetabulum of a patient for an acetabular implant, the method comprising:
- removably engaging an acetabular area of the patient to a complementary surface of a patient-specific acetabular guide, the acetabular guide having a guiding element oriented along a patient-specific alignment axis, the alignment axis determined during a preoperative plan of the patient for implant alignment;
removably coupling a shaft of a guiding tool to the guiding element of the acetabular guide such that the shaft of the guiding tool is oriented along the alignment axis;
removably attaching a three dimensional orientation device to the shaft of the guiding tool;
calibrating the orientation device to indicate the alignment axis orientation;
removing the acetabular guide and guiding tool;
removing the orientation device from the guiding tool;
removably attaching the orientation device to a shaft of an instrument; and
guiding the shaft of the instrument along the alignment axis using the orientation device.
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Accused Products
Abstract
A method for preparing a joint surface of a patient for an implant, such as, for example, an acetabular implant for a hip joint. According to the method, a patient-specific guide is attached to a complementary joint surface of the patient. The patient-specific guide includes a guiding element oriented along a patient-specific alignment axis. The alignment axis is determined during a preoperative plan of the patient for implant alignment. A shaft of a guiding tool is removably coupled to the guiding element of the guide. A three-dimensional orientation device is removably attached to the shaft of the guiding tool. A position of a bubble of the orientation device is marked with a mark on an outer transparent surface of the orientation device while the guiding tool is oriented along the alignment axis. The marked orientation device can be used for aligning other instruments during the procedure.
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Citations
26 Claims
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1. A method for preparing an acetabulum of a patient for an acetabular implant, the method comprising:
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removably engaging an acetabular area of the patient to a complementary surface of a patient-specific acetabular guide, the acetabular guide having a guiding element oriented along a patient-specific alignment axis, the alignment axis determined during a preoperative plan of the patient for implant alignment; removably coupling a shaft of a guiding tool to the guiding element of the acetabular guide such that the shaft of the guiding tool is oriented along the alignment axis; removably attaching a three dimensional orientation device to the shaft of the guiding tool; calibrating the orientation device to indicate the alignment axis orientation; removing the acetabular guide and guiding tool; removing the orientation device from the guiding tool; removably attaching the orientation device to a shaft of an instrument; and guiding the shaft of the instrument along the alignment axis using the orientation device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A method for preparing a joint surface of a patient for an implant, the method comprising:
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attaching a patient-specific guide to a complementary joint surface of the patient, the patient-specific guide having a guiding element oriented along a patient-specific alignment axis, the alignment axis determined during a preoperative plan of the patient for implant alignment; removably coupling a shaft of a guiding tool to the guiding element of the patient-specific guide; removably attaching a three-dimensional orientation device to the shaft of the guiding tool; and marking a position of a bubble of the orientation device with a mark on an outer transparent surface of the orientation device while the guiding tool is oriented along the alignment axis. - View Dependent Claims (11, 12, 13, 14, 15)
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16. A surgical kit for preparing a joint surface to receive an implant, the surgical kit comprising:
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a patient-specific guide for a joint surface, the patient-specific guide having a patient-specific surface complementary to a surface of the joint for nesting engagement and a guiding element oriented along a patient-specific alignment axis, the alignment axis determined during a preoperative plan of the specific patient for implant alignment; a guiding tool couplable to the guiding element of the patient-specific guide; and a three-dimensional orientation device removably couplable the guiding tool for intra-operative calibration, such that, after calibration, the orientation device can be removably coupled to a shaft of a surgical instrument to align the shaft along the alignment axis. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification