Surgery – Truss – Perineal
Patent
1979-01-23
1980-10-14
Frinks, Ronald L.
Surgery
Truss
Perineal
128 92D, A61B 1718, A61F 504
Patent
active
042275180
ABSTRACT:
An intramedullary retraction nail serves to keep the two ends of a fractured and splintered bone at the correct distance and in correct alignment. For this purpose the nail is provided with an expansion element at its front end which can be expanded so as to grip the inside of the cavity walls of one bone end. The expansion of this element is carried out by manipulation of an expanding mechanism from the rear end of the nail protruding out of the other end of the bone. This bone end is held in position by one or two connector strips fastened thereto by screws, while the rear ends of these strips are attached to a retractor body which can be moved along the threaded end of the intramedullary nail so as to stretch the bone parts to their original distance. The retractor body is prevented from rotating about the nail end, thus the fractured bone parts are not only held at their correct distance but also in a desired angular alignment.
REFERENCES:
patent: 3759257 (1973-09-01), Fisher et al.
patent: 3805775 (1974-04-01), Fisher et al.
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