Expandable spinal implants
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United States of America Patent
Stats
-
Apr 17, 2001
Grant Date -
N/A
app pub date -
Nov 8, 1999
filing date -
Jul 22, 1994
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A cylinder-shaped expandable spinal implant is disclosed. The implant is a hollow housing having a cylinder-shaped wall, with a circular sealed distal end, and an opposite proximal circular open end. The open end of the housing has internal threads for securing a cap to it. A removable cap is threaded on the open end of the housing. The housing has two opposite large rectangular openings located longitudinally in the wall of the housing for receiving two arcuate sections. Each arcuate section is positioned in the rectangular opening in the wall of the implant. A locking means for locking the arcuate section in the rectangular opening in the wall is provided. A plurality of small ports are drilled in the wall for allowing bone growth after implantation of said implant in a patient. The arcuate sections have transverse ribs for locking the implant in position are implantation. Openings between the ribs are provided for allowing bone growth.
First Claim
Family
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