Tissue displacement tools and methods
First Claim
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1. A tissue cavity preparation tool comprising an elongated rotator and a broaching member including a first elongated body and a second elongated body, the first body and the second body being configured to be coupled to the rotator, wherein:
- the first elongated body has a first sharp edge, a first trailing edge and a first face, wherein the first elongated body, in a state in which the first body is not coupled to the rotator, curves in a plane parallel to the first face when the first elongated body is in a planar configuration;
the second elongated body has a second sharp edge, a second trailing edge and a second face, wherein the second elongated body, in a state in which the second body is not coupled to the rotator, curves in a plane parallel to the second face when the second elongated body is in a planar configuration; and
the elongated rotator defines a longitudinal axis and is configured to;
retain a first end of the first body and a second end of the first body such that the first end of the first body is spaced longitudinally apart from the second end of the first body and the first face forms a first cone-like surface when the first body is coupled to the rotator and in an expanded state; and
retain a first end of the second body and a second end of the second body such that the first end of the second body is spaced longitudinally apart from the second end of the second body and the second face forms a second cone-like surface when the second body is in coupled to the rotator and in an expanded state.
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Abstract
Apparatus and methods for bone cavity preparation. Formed broaching members may be supported inside a bone by a rotator. The broaching members may be bowed out inside the bone to create a cavity having a shape determined by the broaching members and bone anatomy.
1001 Citations
56 Claims
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1. A tissue cavity preparation tool comprising an elongated rotator and a broaching member including a first elongated body and a second elongated body, the first body and the second body being configured to be coupled to the rotator, wherein:
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the first elongated body has a first sharp edge, a first trailing edge and a first face, wherein the first elongated body, in a state in which the first body is not coupled to the rotator, curves in a plane parallel to the first face when the first elongated body is in a planar configuration; the second elongated body has a second sharp edge, a second trailing edge and a second face, wherein the second elongated body, in a state in which the second body is not coupled to the rotator, curves in a plane parallel to the second face when the second elongated body is in a planar configuration; and the elongated rotator defines a longitudinal axis and is configured to; retain a first end of the first body and a second end of the first body such that the first end of the first body is spaced longitudinally apart from the second end of the first body and the first face forms a first cone-like surface when the first body is coupled to the rotator and in an expanded state; and retain a first end of the second body and a second end of the second body such that the first end of the second body is spaced longitudinally apart from the second end of the second body and the second face forms a second cone-like surface when the second body is in coupled to the rotator and in an expanded state. - 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, 31, 32, 33, 34, 35, 36, 37, 43)
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38. A tissue cavity preparation tool comprising an elongated rotator, a fastener and a broaching member including a first elongated body, a second elongated body and a loop, the first and second bodies and the loop being of monolithic construction, wherein:
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the first elongated body defines a first central axis through the first body and includes a first twist, a first span segment extending between a first body first end and the first twist, and a first body second end extending away from the twist, the first span segment including a sharp convex first edge, a first face and a first trailing edge, wherein when the first elongated body, in a state in which the first body is not coupled to the rotator, is in a planar configuration; the first span segment curves in a plane parallel to the first face; and the first body second end is positioned at an angular displacement, about the first central axis relative to the first span segment; the second elongated body defines a second central axis through the second body and includes a second twist, a second span segment extending between a second body first end and the second twist, and a second body second end extending away from the twist, the second span segment including a sharp convex second edge, a second face and a second trailing edge, wherein when the second elongated body, in a state in which the second body is not coupled to the rotator, is in a planar configuration; the second span segment curves in a plane parallel to the second face; and the second body second end is positioned at an angular displacement, about the second central axis relative to the second span segment; the rotator defines a longitudinal axis, the rotator being configured to; retain the first body second end such that the first body second end is spaced longitudinally apart from the first body first end and the first face forms a first cone-like surface when the first body is coupled to the rotator and in an expanded state; and retain the second body second end such that the second body second end is spaced longitudinally apart from the second body first end and the second face forms a first cone-like surface when the second body is coupled to the rotator and in an expanded state; and the fastener is coupled to the rotator and is configured to engage the loop, the first body first end and the second body first end together forming the loop. - View Dependent Claims (39, 40, 41, 42, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56)
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Specification