Radioactive and/or thermal seed implantation device

A - Human Necessities – 61 – M

Patent

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Details

A61M 36/00 (2006.01) A61B 18/14 (2006.01)

Patent

CA 2306874

An instrument for implanting radioactive and/or thermal seeds in body tissue for radiation and/or heat therapy, comprises a tubular hypodermic needle barrel (18) affixed to a pistol-grip shaped handle (12) which incorporates a reciprocally movable push rod (26) for stripping one such seed from a cartridge (28) containing a plurality of seeds, and advancing it to the end of the barrel. Actuation of a trigger in the pistol grip handle causes the barrel to retract relative to the push rod, causing the seed to be deposited in the channel in the body tissue created by the original puncturing thereof by the instrument's barrel.

L'invention porte sur un instrument servant à implanter des grains radioactifs et/ou thermoactifs dans des tissus corporels à des fins de radio et/ou thermothérapie et comportant une tige tubulaire (18) d'aiguille hypodermique fixée à une poignée pistolet (12) qui présente une tige-poussoir (26) à mouvement alternatif permettant d'extraire un grain d'une cartouche (28) en contenant plusieurs, et de le faire avancer jusqu'à l'extrémité de l'aiguille. En pressant une détente placée dans la poignée pistolet, on provoque le retrait de l'aiguille par rapport à la tige-poussoir et le dépôt du grain dans le canal créé par la pénétration de l'aiguille dans le tissu corporel.

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