Surgery – Truss – Pad
Patent
1989-11-21
1992-01-07
Howell, Kyle L.
Surgery
Truss
Pad
128754, 378 37, A61B 505, A61B 604
Patent
active
050781421
ABSTRACT:
A precision mammographic needle biopsy system in which a patient having a suspected non-palpable lesion of the breast lies on a table having a breast aperture therein through which the patient's breast pendulantly protrudes includes a compression paddle for selectively compressing the breast against an X-ray film holder to firmly hold the breast in a suitable projection; a radially pivoting X-ray arm arranged to direct an X-ray beam in horizontal alignment with the patient's breast onto an X-ray film; a radially pivoting X-ray film holder arm supporting both the X-ray film holder and a puncture instrument holding a biopsy needle having adjustable azimuth angle, elevation angle, and insertion depth parameters; and a computer-digitizer console including a cursor and having a light box digitizer view area for viewing and digitizing a point of interest depicted in two stereoscopic X-ray images of the patient's breast, a computer for analyzing the relative positions of the point of interest depicted on the two stereoscopic X-ray images with reference to a pair of reference marks projected onto each of the images and for determinig the location in 3-dimensional space of the point of interest specified by the azimuth angle, elevation angle, and insertion depth parameters of the biopsy needle, and a visual display for displaying these parameters to the operator.
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patent: 4485819 (1984-12-01), Igi
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patent: 4875478 (1989-10-01), Chen
TRC Mammotest Diagnostic System for Breast Cancer, not dated, 6 pages.
TRC Mammotest System manufacturing drawings, not dated, 11 sheets.
TRC Mammotest Manual, not dated, 17 pages.
Assa Michael
DePourbaix Michael A.
Siczek Bernard W.
Fischer Imaging Corporation
Hein William E.
Howell Kyle L.
Nasser Jr. Robert L.
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