04541421 is referenced by 38 patents and cites 5 patents.

Halo fixation system for fixation of a head about an orthopedic jacket with an attached halo assembly with respect to the cervical region such as for spine trauma. The halo fixation system includes eight fixated round ball-socket and rod assemblies, four assemblies affixed to the jacket and four assemblies in twin opposing captured elevation screw assemblies. The halo is adjustable through the twin captured elevation screw assemblies. Rods connected between the ball and socket assemblies of the jacket and of the captured elevation assemblies which support the halo. The halo can be either metal or composite material, and either a closed or open halo. The halo is omni adjustable about the head based on the omni directional adjustable rod in the ball-socket configurations located about the halo head piece and the jacket.

Title
Halo fixation system
Application Number
6/596392
Publication Number
4541421
Application Date
April 3, 1984
Publication Date
September 17, 1985
Inventor
William J Eastman
Hopkins
MN, US
Alfred A Iversen
Hopkins
MN, US
Agent
Hugh D Jaeger
Assignee
PMT
MN, US
IPC
A61H 1/02
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