Method and apparatus for removing tissue from a region of...

Details Method and apparatus for removing tissue from a region of... Method and apparatus for removing tissue from a region of...

A - Human Necessities

61

B

A61B 19/00 (2006.01) A61B 17/34 (2006.01) A61B 17/32 (2006.01)

Patent

CA 2317122

A method and apparatus for removing tissue from a volume surrounding a region of interest with a body part of a patient is disclosed. The tissue removal volume and location is determined by stereotactic radiography. The size of the tissue removal volume surrounding the region of interest is derived by placing boundaries around the region of interest in each stereotactic radiographic image. A tissue removal tool is moved within the derived tissue removal volume. The tissue in the region of interest which has been previously diagnosed as cancerous can be marked with a radioactive isotope, for example, and the removal of such tissue from the removal volume which surrounds the region of interest can be monitored to determine whether the tissue in the region of interest has been completely removed.

L'invention porte sur un procédé et un appareil qui permettent d'extraire un tissu d'un volume entourant une zone d'intérêt d'une partie du corps d'un patient. Le volume et l'emplacement du tissu à extraire sont déterminés par radiographie stéréotaxique. La taille du volume de tissu à extraire entourant la zone d'intérêt est déterminée par placement de limites autour de la zone d'intérêt dans chaque image radiographique stéréotaxique. Un instrument d'extraction de tissu est manoeuvré à l'intérieur du volume de tissu à extraire dérivé. Dans la zone d'intérêt, le tissu préalablement diagnostiqué comme étant cancéreux peut être marqué avec un isotope radioactif, par exemple, et l'extraction de ce tissu du volume entourant la zone d'intérêt peut être contrôlée afin de déterminer si le tissu dans la zone d'intérêt a été complètement retirée.

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