Apparatus and methods for bone access and cavity preparation
First Claim
1. Apparatus for broaching a bone, the apparatus comprising;
- a rotator defining a first axis; and
a broaching member including an edge fixed to the rotator and configured to be moved relative to the rotator to displace first bone material that is radially away from the rotator, a distal end of the broaching member looping through a distal end of the rotator to form a loop about a second axis that is transverse to the first axis so that in operation a section of the broaching member extends away from the loop and deflects around second bone material, the second bone material having a higher density than the first bone material.
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Accused Products
Abstract
Apparatus and methods for preparing the interior of a bone for therapy. The therapy may include therapy for a bone fracture. The apparatus and methods may involve orienting a surgical instrument for proper deployment in the interior of the bone. An instrument guide may be positioned and retained against translation along, and rotation about one or more of three substantially orthogonal axes. Apparatus placed exterior to the bone may register the guide to a region inside the bone that is designated for preparation or treatment. One or more broaching members may be used to prepare the region for treatment. A broaching member may be expandable inside the bone. A broaching member may be flexible such that it broaches bone having a relatively lower density and it leaves bone having a relatively higher density substantially intact.
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Citations
105 Claims
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1. Apparatus for broaching a bone, the apparatus comprising;
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a rotator defining a first axis; and a broaching member including an edge fixed to the rotator and configured to be moved relative to the rotator to displace first bone material that is radially away from the rotator, a distal end of the broaching member looping through a distal end of the rotator to form a loop about a second axis that is transverse to the first axis so that in operation a section of the broaching member extends away from the loop and deflects around second bone material, the second bone material having a higher density than the first bone material. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 32, 33, 34, 35)
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31. The apparatus 30 wherein the distal end of the broaching member is fixed to the cylindrical form.
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36. Apparatus for broaching a bone, the apparatus comprising:
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a rotator defining a first axis; and a broaching member including an edge fixed to the rotator and configured to be moved relative to the rotator to displace first bone material that is radially away from the rotator, the broaching member looping about a portion of a distal end of the rotator to form a loop about a second axis that is transverse to the first axis so that in operation a section of the broaching member extends away from the loop and deflects around second bone material, the second bone material having a higher density than the first bone material. - View Dependent Claims (37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67, 68, 69, 70)
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71. Apparatus for broaching a bone, the apparatus comprising:
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a rotator defining a first axis; and a broaching member including an edge fixed to the rotator and configured to be moved relative to the rotator to displace first bone material that is radially away from the rotator, a distal end of the broaching member looping about a distal end of the rotator to form a loop about a second axis that is transverse to the first axis so that in operation a section of the broaching member extends away from the loop and deflects around second bone material, the second bone material having a higher density than the first bone material. - View Dependent Claims (72, 73, 74, 75, 76, 77, 78, 79, 80, 81, 82, 83, 84, 85, 86, 87, 88, 89, 90, 91, 92, 93, 94, 95, 96, 97, 98, 99, 100, 101, 102, 103, 104, 105)
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Specification