Expandable vertebral body replacement device
First Claim
1. An expandable vertebral replacement device, comprising:
- a first replacement body having a collet;
a second replacement body including a projecting portion telescopically received within said collet; and
a collar positioned about said first replacement body for engaging said collet to said second replacement body to thereby secure said second replacement body in a fixed position relative to said first replacement body.
1 Assignment
0 Petitions
Accused Products
Abstract
An expandable vertebral replacement device and method of using the same is disclosed that allows surgeons to support two adjacent vertebrae after an intermediate vertebra or a portion of an intermediate vertebra has been removed for the spine. The expandable vertebral replacement device includes a first replacement body, a second replacement body and a collar. The second replacement body includes a projecting portion that is telescopically received within an axial passage defined by the first replacement body. The collar is used to force the collet of the first replacement body into clamping engagement with the projecting portion of the second replacement body to lock the expandable vertebral replacement device at a select height.
63 Citations
30 Claims
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1. An expandable vertebral replacement device, comprising:
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a first replacement body having a collet; a second replacement body including a projecting portion telescopically received within said collet; and a collar positioned about said first replacement body for engaging said collet to said second replacement body to thereby secure said second replacement body in a fixed position relative to said first replacement body. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An expandable vertebral replacement device, comprising:
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a first cylindrical replacement body having an upper portion and a lower portion defining at least a partially hollow interior area, wherein said upper portion includes a collet; a second cylindrical replacement body including a projecting portion positioned within said collet of said first cylindrical replacement body; and a collar positioned about said upper portion of said first cylindrical replacement body for fixedly engaging said collet to said projecting portion of said second cylindrical replacement body to maintain said second cylindrical replacement body in a fixed position relative to said first cylindrical replacement body. - View Dependent Claims (11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22)
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23. A method of supporting two adjacent vertebrae, comprising the steps of:
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placing an expandable vertebral replacement device between the adjacent vertebrae; positioning an external distractor into engagement with opposite end portions of the expandable vertebral replacement device; expanding the expandable vertebral replacement device along a longitudinal axis to a select height between the first and second vertebrae with the external distractor; and rotating a collar portion of the expandable vertebral replacement device about the longitudinal axis to lock the expandable vertebral replacement device at the select height. - View Dependent Claims (24, 25, 26, 27, 28, 29, 30)
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Specification