Plugged tip delivery tube for marker placement

A - Human Necessities – 61 – M

Patent

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Details

A61M 37/00 (2006.01) A61B 19/00 (2006.01)

Patent

CA 2490066

The invention provides marker delivery devices, assemblies, and methods. Assemblies embodying features of the invention include marker delivery devices having a delivery tube with an orifice, markers, and a plug releasably disposed in the tube occluding the orifice. The plug prevents markers from passing through the orifice before the marker is to be placed at a desired location within a patient's body, prevents ingress of tissue into the bore of the tube, and allows markers to pass out of the orifice when marker delivery is desired. Guidance of a delivery tube to a desired location within a patient's body may include the use of an imaging device, with or without the use of a guide cannula. The plug may itself serve as a marker, and may be the sole marker. Markers may be detectable by ultrasound, X-ray, magnetic resonance imaging, and other imaging devices, and may include bioactive elements.

L'invention porte sur des procédés, des ensembles et des dispositifs d'administration de marqueurs. Les ensembles de cette invention comprennent des dispositifs d'administration de marqueurs comportant un tube d'administration pourvu d'un orifice, des marqueurs et un bouchon amovible fermant l'orifice du tube. Le bouchon empêche les marqueurs de passer par l'orifice avant que le marqueur soit placé à un emplacement souhaité dans le corps du patient. Il empêche également le tissu de pénétrer dans l'orifice du tube et permet aux marqueurs de sortir par l'orifice du tube lorsque leur administration est désirée. Le guidage du tube d'administration vers un emplacement désiré dans le corps du patient implique l'utilisation d'un dispositif d'imagerie, avec ou sans canule. Le bouchon peut lui-même servir de marqueur et peut être le marqueur exclusif. Les marqueurs peuvent être détectés par ultrasons, rayons X, imagerie par résonance magnétique et autres dispositifs d'imagerie et peuvent comporter des éléments bioactifs.

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