Welding method and apparatus

B - Operations – Transporting – 23 – K

Patent

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Details

B23K 37/047 (2006.01) A61M 36/12 (2006.01) A61N 5/10 (2006.01)

Patent

CA 2348877

In a method for welding closed one end of each of a multiplicity of open-ended tubes suitable for use as brachytherapy capsules (100), each tube is loaded into a holder (52), brought to a welding station (80), has one end welded closed and is then released from the holder (52). A number of holders can be arranged on the periphery of a rotatable member (50), each holder being loaded with a tube at a first station, and then carrying the tube to a welding station (80) and an ejection station (90). The tubes can be loaded into the holders individually by means of an escapement mechanism (40). The invention also extends to apparatus for carrying out the method.

La présente invention concerne une méthode de soudage utilisée pour obturer l'une des extrémités de chaque tube parmi une multitude de tubes à extrémités ouvertes, pouvant être utilisés comme capsules de curiethérapie (100). Chacun de ces tubes est d'abord chargé dans un support (52), puis amené dans un poste de soudage (80) où l'une de ses extrémité est obturée par soudage, avant d'être libéré du support (52). En l'occurrence, un certain nombre de supports peuvent être placées autour d'un élément rotatif (50), chaque support étant chargé avec un tube dans un premier poste, ce tube étant ensuite amené à un poste de soudage (80) puis à un poste d'injection (90). Les tubes peuvent être chargés individuellement dans les supports au moyen d'un mécanisme d'échappement (40). Par ailleurs, cette invention concerne l'appareil qui permet de réaliser cette méthode.

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