Bioabsorbable marker having external anchoring means

A - Human Necessities – 61 – B

Patent

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A61B 19/00 (2006.01) A61B 1/00 (2006.01) A61B 5/05 (2006.01) A61B 10/00 (2006.01)

Patent

CA 2503742

A clip and a bioabsorbable marker are employed to mark a biopsy site. The former provides a permanent marker that is clamped onto tissue and that cannot migrate from the site over time. The latter is gradually bioabsorbed over time but the time may vary widely from weeks to months. In most embodiments, the clip and marker are integrally formed with one another at the time of manufacture. In one embodiment, the clip and marker are independently made but are joined to one another during the site-marking process. The markers are deployed by core biopsy needles of the type employing a vacuum, of the type that does not employ a vacuum, and by coaxial biopsy needles.

La présente invention a trait à une agrafe et un marqueur biorésorbable utilisées pour le marquage d'un site de biopsie. L'agrafe fournit un marqueur permanent qui est fixé sur le tissu et ne peut effectuer de migration à partir du site dans le temps. Le marqueur subit une biorésorption graduelle dans le temps mais la durée peut varier entre des semaines et des mois. Dans la plupart des modes de réalisation, l'agrafe et le marqueur sont constitués de manière solidaire l'une de l'autre au moment de la fabrication. Dans un mode de réalisation, l'agrafe et le marqueur sont fabriqués de manière indépendante mais sont assemblés l'une à l'autre lors de processus de marquage de site. Les marqueurs sont déployés par des aiguilles de microbiopsie du type utilisant une dépression, du type n'utilisant pas de dépression, et par des aiguilles coaxiales.

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