Apparatus for implantation into bone
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Apr 22, 2003
Grant Date -
N/A
app pub date -
Nov 8, 2000
filing date -
Oct 5, 2000
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
An apparatus (10) is provided for implantation into a bone (12) in a patient's spine or pelvis. The apparatus (10), when implanted, is resistant to toggling in the bone (12) and to being pulled from the bone. The apparatus (10) comprises a platform (24) having a first surface (38) for facing the bone (12) in a patient's spine or pelvis. The platform (24) includes structure (32, 34, 36) for connection to a spinal fixation implant (100). The apparatus (10) further comprises helical spikes (50, 52) for embedding into the bone (12) upon rotation of the platform (24). The helical spikes (50, 52) project tangentially from the platform (24) and extend around a longitudinal axis (22). The helical spikes (52, 52) have a tip portion (58) at a distal end (62) which penetrates into the bone (12) as the platform (24) is rotated. The helical spikes (50, 52) further have a connecting portion (54) at a proximal end (58) connected to the platform (24) and an intermediate portion (56) extending between the connecting portion (54) and the tip portion (58).
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