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MINIMALLY INVASIVE PERCUTANEOUS PEDICLE SCREW AND SLOTTED ROD ASSEMBLY
专利权人:
Miguelangelo J. Perez-Cruet
发明人:
Miguelangelo J. Perez-Cruet,John R. Pepper
申请号:
US13413001
公开号:
US20120165873A1
申请日:
2012.03.06
申请国别(地区):
US
年份:
2012
代理人:
摘要:
A pedicle screw and rod assembly that has particular application for minimally invasive percutaneous pedicle screw instrumentation. The assembly includes pedicle screws having ball-shaped heads that are threaded through pedicles of adjacent vertebra into the vertebral body. The assembly also includes two cannulated posts that extend above a cannulated pedicle screw to allow placement over a K-wire. A head portion accepts the head of the pedicle screw in a secure and multi-axial engagement. The assembly further includes a tube portion that is coupled to the head portion and extends above the patients skin. The assembly also includes a lordotic slotted rod that is slid down the tube portions to be positioned on top of the head portions of the posts so that the portions are locked within the slot. Bolts are then slid down the tube portions and are threaded to a threaded portion on the portion.
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