Surgery – Radioactive substance applied to body for therapy – Radioactive substance placed within body
Patent
1989-03-02
1991-03-12
Green, Randall L.
Surgery
Radioactive substance applied to body for therapy
Radioactive substance placed within body
600 4, A01N 500
Patent
active
049989120
ABSTRACT:
A diverging template (18) for radioactive therapy of cancer within an internal tumor volume by interstitial implants through the skin (78) comprises a proximal surface (34) for positioning adjacent the skin and a distal surface (36) opposite the proximal surface (34). An axis (32) of the template (18) is substantially perpendicular to the proximal surface (34). A plurality of holes (24'-30') are formed in the template (18) from the distal surface (36) to the proximal surface (34) for guiding respective needles (24-30) through the skin (78) and into the tumor volume. The holes comprise at least a first group (28) and a second group (26), each hole of the first group (28) spaced from the axis (32) and forming a first angle therewith that diverges from the distal surface (36) to the proximal surafce (34). Each hole (26) of the second group is spaced from the axis (32) and diverges from the distal surface (36) to the proximal surface (34) at a second angle greater than the first angle. The template of the invention allows the treatment of an internal tumor volume that is greater in lateral area than the area of the proximal surface (34) that includes the groups (26-30) of holes, and avoids problems due to pelvic bone (80) interposition.
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A. M. N. Syed et al., "Transperineal Interstitial-Intracavitary `Syed-Neblett` Applicator in the Treatment of Carcinoma of the Uterine Cervix," Endocurie, Hypertherm, Oncol.2:1-13 (1987).
J. Berchmans et al., "A Diverging Gynecological Template for Radioactive Interstitial/Intracavitary Implants of the Cervix", Int. J. Radiation Oncology Biol. Phys., 15:461-465 (1988).
Antich Pietro P.
John Berchmans
Nguyen Phuc D.
Scarbrough Edward C.
Board of Regents , The University of Texas System
Green Randall L.
Reichle Kim
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