Precision mammographic needle biopsy system

Surgery – Truss – Pad

Patent

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Details

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.

REFERENCES:
patent: 2707662 (1955-05-01), Goldfield
patent: 3973126 (1976-08-01), Redington
patent: 4485819 (1984-12-01), Igi
patent: 4545385 (1985-10-01), Pirschel
patent: 4613122 (1986-09-01), Manabe
patent: 4618973 (1986-10-01), Lasky
patent: 4750487 (1988-06-01), Zanetti
patent: 4791934 (1988-12-01), Brunnett
patent: 4869247 (1989-09-01), Howard
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.

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