X-ray or gamma ray systems or devices – Specific application – Mammography
Reexamination Certificate
2007-08-28
2007-08-28
Glick, Edward J. (Department: 2882)
X-ray or gamma ray systems or devices
Specific application
Mammography
Reexamination Certificate
active
11285572
ABSTRACT:
The present invention provides a partially radiolucent, partially radiopaque marker and a method for using such a marker for radiographic examination. The marker and the disclosed method may be employed for the examination of tissue structures of various densities. The radiographic density and thickness of the marker are selected so that when the marker and an underlying tissue structure are exposed to x-ray radiation of a specified energy, the marker casts a legible shadow without obscuring anatomical detail present in the underlying tissue structure. The invention also provides a system of partially radiolucent, partially radiopaque markers for use in the method of radiographic examination taught by the invention.
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Beekley Corporation
McCarter & English LLP
Midkiff Anastasia S.
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