EXPANDABLE SUPPORT DEVICE AND METHOD OF USE
First Claim
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1. An orthopedic mechanical support device having a longitudinal axis comprising:
- a first hollow member having a slot through the first hollow member, wherein the slot is defined by a first stop at a first terminal end of the slot and a second stop at the second terminal end of the slot;
a second hollow member positioned radially inside of the first hollow member, the second hollow member configured to rotate with respect to the first hollow member;
a rotationally limiting element radially extending from the second hollow member, wherein the rotationally limiting element is received by the slot, and wherein the rotationally limiting element and slot are configured to abut at the first stop to limit rotation of the second hollow member with respect to the first hollow member in a first direction, and wherein the rotationally limiting element and the slot are configured to abut at the second stop to limit the rotation of the second hollow member with respect to the second hollow member in the second direction; and
a first longitudinally extending member configured to longitudinally slide with respect to the first hollow member in a first direction away from the first hollow member when the first hollow member is in a first rotational position with respect to the first longitudinally extending member, and wherein the first longitudinally extending member is configured to be longitudinally fixed with respect to the first hollow member when the first hollow member is in a second rotational position with respect to the first longitudinally extending member, and wherein the first longitudinally extending member is configured to be longitudinally slidable along and rotationally fixed to the second hollow member.
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Abstract
An expandable support device and methods of using the same are disclosed herein. The expandable support device can expand longitudinally. The expandable support device can be deployed in a bone, such as a vertebra, for example to repair a compression fraction or replacement of removed tissue, such as a vertebra or vertebral body. The expandable support device can be deployed into or in place of all or part of an intervertebral disc.
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Citations
20 Claims
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1. An orthopedic mechanical support device having a longitudinal axis comprising:
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a first hollow member having a slot through the first hollow member, wherein the slot is defined by a first stop at a first terminal end of the slot and a second stop at the second terminal end of the slot; a second hollow member positioned radially inside of the first hollow member, the second hollow member configured to rotate with respect to the first hollow member; a rotationally limiting element radially extending from the second hollow member, wherein the rotationally limiting element is received by the slot, and wherein the rotationally limiting element and slot are configured to abut at the first stop to limit rotation of the second hollow member with respect to the first hollow member in a first direction, and wherein the rotationally limiting element and the slot are configured to abut at the second stop to limit the rotation of the second hollow member with respect to the second hollow member in the second direction; and a first longitudinally extending member configured to longitudinally slide with respect to the first hollow member in a first direction away from the first hollow member when the first hollow member is in a first rotational position with respect to the first longitudinally extending member, and wherein the first longitudinally extending member is configured to be longitudinally fixed with respect to the first hollow member when the first hollow member is in a second rotational position with respect to the first longitudinally extending member, and wherein the first longitudinally extending member is configured to be longitudinally slidable along and rotationally fixed to the second hollow member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An orthopedic mechanical support device having a longitudinal axis comprising:
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a first hollow member comprising an inner diameter wall and a first hollow member locking feature, wherein the first hollow member locking feature radially inwardly extends from the inner diameter wall; , a second hollow member radially inside of the first hollow member, wherein the second hollow member is rotatable with respect to the first hollow member, and wherein the second hollow member has a first guide and a second guide; a first longitudinally extending member comprising a first radially outwardly extending locking feature and a first radially inwardly extending guide interface; and a second longitudinally extending member comprising a second radially outwardly extending locking feature and a second radially inwardly extending guide interface; and wherein the first guide interface interfaces with the first guide to limit the rotation between the second hollow member and the first longitudinally extending member, and wherein the first guide interface interfaces with the first guide to allow and limit longitudinal movement between the second hollow member and the first longitudinally extending member; and wherein the second guide interface interfaces with the second guide to limit the rotation between the second hollow member and the second longitudinally extending member, and wherein the second guide interface interfaces with the second guide to allow and limit longitudinal movement between the second hollow member and the second longitudinally extending member. - View Dependent Claims (11, 12, 13, 14)
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15. A method for mechanically supporting an orthopedic site comprising:
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inserting a longitudinally expandable device into the orthopedic site, wherein the support device has a longitudinal axis and comprises a first hollow member, a second hollow member radially inside of the first hollow member, and a first longitudinally extending member slidably received by the first hollow member; longitudinally extending the first longitudinally extending member from the first hollow member; and longitudinally fixing the first longitudinally extending member to the first hollow member, wherein longitudinally fixing comprises rotating the first hollow member with respect to the first longitudinally extending member. - View Dependent Claims (16, 17, 18, 19, 20)
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Specification