Set screw for medical implants

Details Set screw for medical implants Set screw for medical implants

1998-10-22

2000-05-09

Buiz, Michael

Surgery

Instruments

Orthopedic instrumentation

606 61, A61B 1756

Patent

active

060597860

ABSTRACT:
A low profile and removable set screw for use in connecting one medical implant to another and for similar uses. The set screw has a base and a head that is breakable from the base in a breakaway region at a preselected torque, such that the head allows rotation of the screw and torquing of a tip of the base against one of the implants during installation. The screw includes a groove or notch at the breakaway region to trigger breaking. The screw also includes a pair of slots extending radially from an outer threaded surface of the base part way into the base. The slots intersect with the breakaway region, but not with each other leaving a center core in the base. A tool is provided for removing the base after the head is broken away. The tool includes a pair of spaced ears that are received in the slots and provide for rotation of the base by rotating the tool. A bore of larger width than the slots is centered on each slot at the breakaway region providing relief for metal adjacent to the bores during torquing and breaking.

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Two Drawings of Sofamor dated Mar. 10, 1994 and Sep. 20, 1994.

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