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US 8,147,528 B2Granted
Laminoplasty methods and devices
AssigneeDePuy Spine, Inc.
InventorsMichael Mazzuca, Michael Jacene, Ed Zalenski, John Riley Hawkins, Michael A. Fisher
Life of this patent
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Abstract
A vertebral implant is provided that includes a distraction member having a first end configured to pivotally couple to a first cut portion of a vertebra and a second end configured to mate with a base member configured to couple to a second cut portion of the vertebra. The distraction member can move relative to the base member to create a force effective to adjust a distance between the first and second cut portions of the vertebra.
Claims23
A vertebral implant, comprising:
- a base member having a plate with an opening formed therein and a clamp mated to the plate, the clamp being configured to fit around a first cut portion of a vertebra;
- and
- a distraction member having a first end configured to pivotally couple to a second cut portion of the vertebra and a second end configured to mate with the opening formed in the plate of the base member, wherein the distraction member can move through the opening to create a force effective to increase a distance between the first and second cut portions of the vertebra.
A vertebral implant, comprising:
- a plate having a first end configured to couple to a first cut portion of a vertebra and a second end with a threaded bore formed therethrough;
- and
- a threaded member configured to pivotally couple to a second cut portion of a vertebra and threadably disposed through the threaded bore such that rotation of the threaded member relative to the plate is effective to increase a distance between the first and second cut portions of the vertebra.
A method for increasing a size of a spinal canal, comprising:
- pivotally coupling a distraction member to a first cut portion of a vertebra;
- coupling a base member to a second cut portion the vertebra;
- and
- actuating the distraction member to apply a force to the base member to adjust a distance between the first and second cut portions of the vertebrae;
- wherein adjusting the distance between the first and second cut portions comprising threadably rotating the distraction member through a threaded opening formed in the base member.
2 more elements
Dependencies are inferred from the claim text.