Fracture consolidation measuring apparatus

Details Fracture consolidation measuring apparatus Fracture consolidation measuring apparatus

1996-01-16

1998-08-11

Hindenburg, Max

Surgery

Diagnostic testing

Measuring anatomical characteristic or force applied to or...

606 59, A61B 5103

Patent

active

057920761

ABSTRACT:
Apparatus for measuring bone strain to detect fracture consolidation includes a fixation device which is affixed to a patient's bone that has a fracture site to be healed and wherein the fixation device supports an elongated optical fiber. Light is transmitted through the optical fiber to an exit point. The light intensity within the optical fiber is measured, preferably at the exit point as the light travels through the optical fiber. Light intensity is measured to monitor strain in the fixation device as the fracture site heals. A physician then determines when the site has fully healed by observing changes in light intensity as the patient's bone rather than the fixation device carries more of the patient's normal body loading.

REFERENCES:
patent: 4191470 (1980-03-01), Butter
patent: 4576158 (1986-03-01), Boland
patent: 4841778 (1989-06-01), Butler et al.
patent: 4913137 (1990-04-01), Azer et al.
patent: 5454810 (1995-10-01), Pohl et al.

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