Patient-specific femoral guide
First Claim
1. A medical device for preparing an elongated bone for receiving an implant comprising:
- a femoral guide having a patient-specific three-dimensional bone-engaging surface configured according to a preoperative plan based on a three-dimensional image model of a proximal femoral bone to mate complementarily with the surface of the proximal femoral bone extending between a greater trochanter, a femoral neck and a femoral shaft of the proximal femoral bone, the femoral guide including a first guide end forming a planar guide configured to engage a resection tool within a desired resection plane and thereby guide the resection tool as the resection tool cuts the femoral neck along the desired resection plane and completely removes a femoral head of the proximal femoral bone but preserves the greater trochanter; and
an elongated alignment member removably attachable to the femoral guide and defining a reference axis for guiding a cutting tool into the proximal femoral bone through a resected surface of the femoral neck.
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Accused Products
Abstract
A medical device for preparing an elongated bone, such as a proximal femoral bone, for receiving an implant includes a patient-specific femoral guide and an elongated alignment element. The femoral guide has a patient-specific three-dimensional bone-engaging surface configured according to a preoperative plan based on a three-dimensional image model of the femoral bone to mate complementarily with the surface of the proximal femoral bone extending between the greater trochanter, the femoral neck and the femoral shaft of the proximal femur. The femoral guide includes a first guide end forming a planar guide configured for guiding a neck resection. The alignment member can be removably attached to the femoral guide and defines a reference axis for guiding a cutting tool into the femoral bone through a resected surface of the femoral neck.
1564 Citations
21 Claims
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1. A medical device for preparing an elongated bone for receiving an implant comprising:
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a femoral guide having a patient-specific three-dimensional bone-engaging surface configured according to a preoperative plan based on a three-dimensional image model of a proximal femoral bone to mate complementarily with the surface of the proximal femoral bone extending between a greater trochanter, a femoral neck and a femoral shaft of the proximal femoral bone, the femoral guide including a first guide end forming a planar guide configured to engage a resection tool within a desired resection plane and thereby guide the resection tool as the resection tool cuts the femoral neck along the desired resection plane and completely removes a femoral head of the proximal femoral bone but preserves the greater trochanter; and an elongated alignment member removably attachable to the femoral guide and defining a reference axis for guiding a cutting tool into the proximal femoral bone through a resected surface of the femoral neck. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A medical device for preparing a proximal femur for receiving an implant comprising:
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a femoral guide having a patient-specific three-dimensional bone-engaging surface configured according to a preoperative plan based on a three-dimensional image model of the proximal femur to mate complementarily with the surface of the proximal femur extending between the greater trochanter, the femoral neck and the femoral shaft of the proximal femur, wherein the femoral guide at least partially defines a first opening with a closed periphery for the femoral neck, a second opening with a closed periphery for the greater trochanter, and a third opening with a closed periphery for the femoral shaft, and an alignment member removably attachable to the femoral guide and defining a reference axis for guiding a cutting tool into the proximal femur through a resected surface of the femoral neck. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20, 21)
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Specification