Surgical hardware for holding live tissue

Details Surgical hardware for holding live tissue Surgical hardware for holding live tissue

1993-09-10

1999-09-21

Cheng, Joe

Surgery

Specula

Retractor

A61B 1702

Patent

active

059546387

ABSTRACT:
A hand formable rod, band or sheet, consisting of a plurality of elements which are linked together in such a way that the whole can be either very flexible, or semi-rigid, or rigid. In the band, the elements have six degrees of freedom, providing unusual flexibility. This fabrication may be hand formed to a desired shape and then rigidified to a substantial stiffness. In the rigid state, this fabrication is strong enough to retract living tissue, and to perform as a mold, template, or fixator. The rigidity may be varied in very small increments by using a screw or screws acting upon tensioning cables. Tension causes increased friction between sliding surfaces. This friction creates stiffness and strength. Bending the fabrication does not cause material fatigue.

REFERENCES:
patent: 3515129 (1970-06-01), Truhan
patent: 3858578 (1975-01-01), Milo
patent: 4984564 (1991-01-01), Yuen
patent: 5159921 (1992-11-01), Hoover
patent: 5284130 (1994-02-01), Ratliff

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