Modular intramedullary nail

Details Modular intramedullary nail Modular intramedullary nail

1990-08-30

1992-06-16

Hafer, Robert A.

Surgery

Instruments

Orthopedic instrumentation

606 63, 606 64, A61F 228

Patent

active

051221411

ABSTRACT:
An intramedullary nail system and method for providing the capability of creating intramedullary nails of any desired length by a combination of a small number of base nail members adapted to be joined to any one of a variety of hollow extension nail members. Any selected extension nail member may be axially connected to any selected base nail member in order to prevent axial separation of the members. Additionally, each extension nail member is provided with transverse openings adapted to receive a bone screw to secure the intramedullary nail within the bone to be repaird. The extension nail member is infinitely rotationally adjustable about the axis of the base nail member in order to enable the fixation of the extension member with any desired degree of anteversion prior to final assembly of the base nail member with the extension nail member.

REFERENCES:
patent: 3846846 (1974-11-01), Fischer
patent: 4622959 (1986-11-01), Marcus
patent: 4776330 (1988-11-01), Chapman et al.
patent: 4805607 (1989-02-01), Engelhardt et al.
patent: 4858601 (1989-08-01), Glisson
patent: 4875475 (1989-10-01), Comte et al.
patent: 4940467 (1990-07-01), Tronzo

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