A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/94 (2006.01)
Patent
CA 2630061
Disclosed is a surgical needle, or active cannula, that is capable of following a complex path through cavities and tissue within a patient's anatomy. The needle has a plurality of overlapping flexible tubes, each of which has a pre-formed curvature and a pre-determined flexibility. Each of the plurality of flexible tubes is selected based on their respective pre¬ formed curvature and flexibility so that a given overlap configuration causes the combination of overlapping flexible tubes to form a predetermined shape that substantially matches a desired path through the anatomy. By individually controlling the translation and angular orientation of each of the flexible tubes, the surgical needle may be guided through the anatomy according to the desired path.
La présente invention concerne une aiguille chirurgicale, ou un cathéter actif, conçus pour suivre un trajet complexe à travers des cavités et des tissus de l'anatomie d'un patient. L'aiguille comporte une pluralité de tubes flexibles se chevauchant, dotés chacun d'une courbure préformée et d'une flexibilité prédéfinie. Chaque unité de la pluralité de tubes flexibles est sélectionnée d'après sa courbure préformée et sa flexibilité respectives afin d'obtenir une configuration de chevauchement particulière permettant à la combinaison de tubes flexibles se chevauchant de prendre une forme prédéfinie correspondant sensiblement à un trajet requis dans l'anatomie. Il est possible de contrôler la translation et l'orientation angulaire propres à chacun des tubes flexibles de façon à guider l'aiguille chirurgicale à l'intérieur de l'anatomie selon le trajet requis.
Cowan Noah J.
Okamura Allison M.
Taylor Russell H.
Webster Robert James III
Johns Hopkins University
Ridout & Maybee Llp
LandOfFree
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