PRECISE FEMORAL COMPONENT POSITIONING FOR HIP REPLACEMENT SURGERY
First Claim
1. A femoral broach tool, comprising:
- a. a connecting member configured to receive a femoral broach, the connecting member defining a central axis;
b. a striking post connected to the connecting member, the striking post defining a surface generally perpendicular to the central axis; and
c. a directional mount attached to the connecting member to receive a directional device, wherein the directional mount is configured to cause the directional device to emit a visual guide parallel to the central axis.
2 Assignments
0 Petitions
Accused Products
Abstract
A method for accurately positioning the acetabular cup in a minimally invasive total hip arthroplasty (THA), comprising the steps of (a) placing the cup in roughly the correct position in the acetabulum using a acetabular component placement tool, (b) taking a first abduction reading and a first anteversion reading using a gyroscopic positioning unit aligned with the acetabular component placement tool, (c) taking an image of at least a portion of the cup using a radiography unit, (d) using the image to determine the actual orientation of the cup and required position of the cup to properly orient the acetabular component, (e) incrementally altering the position of the cup by using a striking tool, (f) taking new abduction and anteversion readings using the gyroscopic unit to determine the relative movement of the cup caused by the tapping, and (g) repeating any of the steps as necessary.
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Citations
20 Claims
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1. A femoral broach tool, comprising:
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a. a connecting member configured to receive a femoral broach, the connecting member defining a central axis; b. a striking post connected to the connecting member, the striking post defining a surface generally perpendicular to the central axis; and c. a directional mount attached to the connecting member to receive a directional device, wherein the directional mount is configured to cause the directional device to emit a visual guide parallel to the central axis. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A femoral broach tool, comprising:
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a. a connecting member configured to receive a femoral broach, the connecting member defining a central axis; and b. a directional mount attached to the connecting member to receive a directional device, wherein the directional mount is configured to cause the directional device to emit a visual guide parallel to the central axis. - View Dependent Claims (9, 10, 11, 12, 13, 14)
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15. A method for preparing a femur for a total hip arthroplasty, comprising:
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a. aligning a femoral broach tool along the femur with a directional device emitting a guide to identify a line of attack directed towards a chosen target; and b. displacing bone material from the femur with the femoral broach tool by tapping the femoral broach tool into the femur while maintaining the line of attack according to the guide. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification