Non-seeding biopsy device and method

Details Non-seeding biopsy device and method Non-seeding biopsy device and method

A - Human Necessities

61

B

A61B 10/00 (2006.01)

Patent

CA 2558699

Tissue biopsy is performed through a central passage (18) of a cannula (12) covered with a protective sleeve (22). The protective sleeve (22) is attached at one end to a location at or near a distal end (14) of the cannula (12). After the biopsy procedure is completed, the cannula (12) is withdrawn so that its exterior slides through the sleeve.(22). In this way, the trailing edge of the sleeve (22) is invaginated within the proximal portions (23) of itself to envelop the sleeve (22) exterior and reduce the risk of inadvertent tumor cell seeding.

La présente invention concerne une biopsie tissulaire réalisée à travers un passage central d'une canule recouverte d'un manchon de protection. Le manchon de protection est relié à une extrémité à un emplacement proche, voire très proche, de l'extrémité distale de la canule. Une fois achevée la procédure de biopsie, la canule est retirée de telle sorte que sa partie extérieure coulisse à travers le manchon. De cette manière, le bord arrière du manchon est introduit à l'intérieur de ses propres portions proximales afin d'envelopper l'extérieur du manchon et de réduire les risques d'ensemencement accidentel de cellules tumorales.

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