Radiant energy – Radiant energy generation and sources – With container for radioactive source and radiation...
Patent
1978-12-13
1980-11-11
Anderson, Bruce C.
Radiant energy
Radiant energy generation and sources
With container for radioactive source and radiation...
250496, G21F 502
Patent
active
042335175
ABSTRACT:
Apparatus for internal irradiation wherein the radioactive material is applied in the shape of a ball row consisting of contiguous radio-active and neutral balls. This ball row is prepared beforehand and is pneumatically transferred to an applicator tube adapted to be introduced into a body cavity. In order that the balls may stay exactly in the right places during the irradiation, the applicator tube is provided with an internal channel having a narrow end portion, passing through a shoulder into the remaining wider portion, and a final ball is added to each ball row, this final ball having a larger diameter than the other balls, so that it is not admitted in the narrow end portion of the internal channel in the applicator tube. Thus, upon introduction of a ball row, the final ball is arrested by the shoulder and keeps the other balls in place. A plurality of applicator tubes may be applied, each of which is associated with an intermediate container in which the ball row is composed. After the irradiation, the ball row is returned through the intermediate container to a sorting device directing the balls to appropriate storage containers. However, the final ball is retained in the intermediate container, so that it may be added to the next ball row to be composed.
REFERENCES:
patent: 3159748 (1964-12-01), Aikens
patent: 3515876 (1970-06-01), Smith et al.
patent: 4069423 (1978-01-01), Garrett
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