Radiant energy – Radiation controlling means – Shields
Patent
1995-04-17
1996-08-27
Anderson, Bruce C.
Radiant energy
Radiation controlling means
Shields
2505151, G21F 302
Patent
active
055503837
ABSTRACT:
A shielding device is provided for protecting healthy tissue during radiotherapy of malignant tissue. The shielding device is composed of nontoxic, high atomic weight metal particles that are dispersed in a thermoplastic matrix material that is substantially rigid at temperatures encountered during radiotherapy, yet becomes readily moldable at temperatures that are within a comfortable range for a patient so as to enable in situ molding of the device. Because the matrix material is a nonsetting thermoplastic, the shielding device can be continuously reshaped in order to achieve a better fit for a patient and the radiation beam used. In addition, the shielding device can be readily reshaped in order to ensure an adequate thickness for radiation shielding.
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Farahani and Eichmiller, "Metal-Polysiloxane Shields for Radiation Therapy of Maxillo-Facial Tumors," Medical Physics, vol. 18, No. 2 (Mar./Apr. 1991), pp. 273-278.
Anderson Bruce C.
Hartman Domenica N. S.
Hartman Gary M.
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