Template assembly for facilitating the placement of interbody fu

Details Template assembly for facilitating the placement of interbody fu Template assembly for facilitating the placement of interbody fu

1998-07-07

2000-08-01

Smith, Jeffrey A.

Surgery

Instruments

Orthopedic instrumentation

A61B 1758

Patent

active

060960442

ABSTRACT:
A template assembly is provided for marking locations on the disc annulus for the implantation of an interbody fusion device or the introduction of a working instrument. The template assembly includes a tubular body sized for percutaneous introduction into a patient and advancement to an affected intervertebral disc. An elongated shaft slidably extends through the tubular body and is threadedly engaged to the handle-mounted thumb wheel so that rotation of the thumb wheel relative to the tubular body retracts the shaft through the body. A guide foot with a rotatable cam near the distal end of the tubular body is operable by the shaft and may be pivoted from a first position aligned with the tubular body to a second deployed position oriented transversely to the tubular body. The guide assembly has an electrocautery projection for marking locations on the disc annulus.

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