Surgery – Truss – Perineal
Patent
1986-03-05
1988-03-15
McNeill, Gregory E.
Surgery
Truss
Perineal
128 92ZW, 128 92ZK, A61F 504
Patent
active
047306084
ABSTRACT:
A fixator for externally anchoring broken bones including a pair of generally planar members each having a plurality of openings adapted to receive a respective group of bone pins inserted in respective pieces of bone. The pins are clamped to the planar members with respective headed screws, and the members are held in adjustable end-to-end relationship by a lead screw anchored at one end in one of the members and engaging a threaded bore in the other member. In an embodiment useful for the treatment of comminuted displaced fractures of the distal radius and ulna, the said one member consists of two articulated sections arranged for angular and rotational adjustment. The lead screw extends beyond the distal end of the said other member and its free end is of the same shape and size as the heads of the clamping screws, and of other screws provided for locking the planar members in adjusted relative positions, enabling longitudinal adjustment and loosening and tightening of all screws to be done with a single tool, preferably an easily manipulated knurled wheel having an opening corresponding in shape and size to the screw heads.
REFERENCES:
patent: 2391537 (1945-12-01), Anderson
patent: 2391693 (1945-12-01), Ettinger
patent: 4258708 (1981-03-01), Gentile
patent: 4273116 (1981-06-01), Chiquet
Catalogue of Richards Medical Company--"Richards External Fixation Systems," Copyright 1983.
Catalogue of EBI Medical Systems, Inc.--"Dynamic Axial Fixation," covers and p. 1, date unknown.
Zimmer brochure--"Fracture Management Systems," undated.
McNeill Gregory E.
Olson Spencer E.
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