Cervical traction tongs

Details Cervical traction tongs Cervical traction tongs

1990-10-30

1991-08-27

Hafer, Robert A.

Surgery

Truss

Perineal

606130, 411386, A61H 102, A61F 504, F16B 2500

Patent

active

050424629

ABSTRACT:
Cervical traction tongs having cooperating first and second curved arms made of MRI and biologically compatible and CT transparent material. Skull pins having main bodies of MRI and biologically compatible and CT transparent material, and pointed skull engaging tips of radiolucent material (e.g. single crystal alumina ceramic) extend through openings at one end of the arms, while at the other ends the arms are connected together in an adjustable manner, so as to adjust the spacing between the pin pointed tips. The arms have enlarged circular end terminations having radially extending serrations which cooperate together, and are held in a position to which they are moved by a through extending bolt and nut. The arms have sufficient elasticity to provide constant pressure urging the pointed pin tips against the human skull during use. A flexible strand for applying tension is passed through an arcuate elongated opening in the serrated end terminations of the arms. Torque limiting caps associated with the pins apply torque. When used to treat a human with an injury to the cervical spine, the tongs and skull pins are removed from sterile packaging, and once the human need no longer remain in traction, the tongs are disposed of.

REFERENCES:
patent: 3401688 (1968-09-01), Crutchfield
patent: 3604412 (1971-09-01), Gardner
patent: 3654923 (1972-04-01), Crutchfield
patent: 3923046 (1975-12-01), Heifetz
patent: 4444179 (1984-04-01), Trippi
patent: 4539979 (1985-09-01), Bremer
patent: 4612930 (1986-09-01), Bremer
patent: 4667660 (1987-05-01), Eingorn
patent: 4883264 (1989-06-01), Bremer

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