Branch connector for spinal fixation systems

Details Branch connector for spinal fixation systems Branch connector for spinal fixation systems

1993-03-04

1994-07-19

Graysay, Tamara L.

Surgery

Instruments

Orthopedic instrumentation

403396, A61B 1756

Patent

active

053304730

ABSTRACT:
A branch connector is useful for connecting a pair of spine rods in a spinal fixation system. The branch connector includes an upper saddle, a lower saddle and a bolt for clamping the saddles together. The upper and lower saddles mate to define a pair of openings for receiving the spine rods. The bolt includes a threaded shaft that extends through a first aperture defined by the upper saddle and threads into a second aperture defined by the lower saddle. By tightening the bolt, the saddles are drawn together to securely grip the spine rods. The openings can be arranged in different configurations to perform different functions. A branch connector with parallel openings forms a branch clamp for connecting two spine rods in series. A pair of branch connectors arranged as transverse clamps with perpendicular openings can be combined with a transverse rod to form a cross brace assembly for bridging a pair of generally parallel spine rods.

REFERENCES:
patent: 1278785 (1918-09-01), Tainter
patent: 3041574 (1962-06-01), Cornell, Jr.
patent: 3997138 (1976-12-01), Crock et al.
patent: 4653481 (1987-03-01), Howland et al.
patent: 5030220 (1991-07-01), Howland
patent: 5084049 (1992-01-01), Asher et al.
patent: 5152701 (1992-10-01), Polidori
The Cross Medical Products, Inc. reference "PWB Transpedicular Spine Fixation System for Posterior Spine Fixation," p. 12.
Textbook of Spinal Surgery, edited by K. H. Bridwell and R. L. DeWald, vol. 1 (1991), Chapter 10, pp. 219-222.
Advanced Spine Fixation Systems, Inc. document, FIG. 4.

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