Fully implantable bone expansion device

Details Fully implantable bone expansion device Fully implantable bone expansion device

1998-09-21

2000-08-22

Buiz, Michael

Surgery

Instruments

Orthopedic instrumentation

A61B 1756

Patent

active

061065250

ABSTRACT:
This invention describes a bone lengthening device, which is fully implantable and works on a cylinder and piston basis which is driven with micro-hydraulics or a internal threaded rod. Choosing a profile which is not round, torsion of the cylinder and piston assembly is avoided, and expansion can be achieved both in a linear as well as in a circular fashion. Since this device is fully implantable, common disadvantages with current methods of bone expansion can be eliminated.

REFERENCES:
patent: 2391693 (1945-12-01), Ettinger
patent: 3976060 (1976-08-01), Hildebrandt et al.
patent: 4157715 (1979-06-01), Westerhoff

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