Positioning method and apparatus for x-ray tomography

Details Positioning method and apparatus for x-ray tomography Positioning method and apparatus for x-ray tomography

1994-01-11

1995-07-11

Smith, Ruth S.

Surgery

Truss

Pad

378162, 378206, A61B 600

Patent

active

054311624

ABSTRACT:
A method and apparatus accurately positions a selected cranial implant site for x-ray tomography. The method and apparatus comprise making a stent of the mandible and maxilla of a patient and making a mark on the stent at a position which corresponds to the selected cranial implant site. The stent is then positioned with regard to a tomographic x-ray imaging apparatus so that, (a) the mark on the stent is aligned with a light beam, preferably generated by a laser source, projected downwardly to intersect the central axis of the tomographic apparatus and, (b) the selected plane through the mark is perpendicular to the x-ray beam of the tomographic apparatus.

REFERENCES:
patent: 4750487 (1988-06-01), Zanetti
patent: 4846173 (1989-07-01), Davidson
patent: 4971060 (1990-11-01), Schneider et al.
patent: 5068887 (1991-11-01), Hughes
patent: 5165410 (1992-11-01), Warne et al.

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