Debulking catheters and methods

C - Chemistry – Metallurgy – 12 – N

Patent

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Details

C12N 5/07 (2010.01) A61B 10/00 (2006.01) A61B 17/3207 (2006.01) C12Q 1/00 (2006.01) C40B 40/02 (2006.01) G01N 33/50 (2006.01)

Patent

CA 2605178

A debulking catheter comprising a tissue debulking assembly for removing a continuous strand of material from a body lumen. Catheters of the present invention generally include a catheter body having proximal and distal portions and a tissue debulking assembly disposed at least partially within the distal portion. The tissue debulking assembly is radially movable to expose at least a portion of the assembly through a window on the catheter body. The catheter is advanced transluminally through the body lumen to contact material in the body lumen and remove a plane of continuous material that has a length that is typically longer than a length of the window on the catheter. The continuous material may be directed into a collection chamber. Thereafter, the material may be removed from the collection chamber and preserved or tested.

La présente invention a trait à un cathéter de réduction de volume comportant un ensemble de réduction de volume tissulaire pour l'élimination d'un brin continu de matériau à partir d'une lumière corporelle. Des cathéters de la présente invention comportent un corps de cathéter comprenant des portions proximale et distale et un ensemble de réduction tissulaire disposé au moins en partie au sein de la portion distale. L'ensemble de réduction tissulaire est radialement mobile pour exposer au moins une portion de l'ensemble à travers une fenêtre sur le corps de cathéter. On fait avancer le cathéter de manière transluminale à travers la lumière corporelle pour le mettre en contact avec un matériau dans la lumière corporelle et éliminer un plan de matériau continu qui présente une longueur qui est typiquement supérieure à une longueur de la fenêtre sur le cathéter. Le matériau continu peut être orienté dans une enceinte de recueil. Ensuite, le matériau peut être retiré de l'enceinte de recueil et conservé ou soumis à un essai.

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