A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/32 (2006.01) A61B 10/02 (2006.01)
Patent
CA 2704592
A method for treating a brain tumor includes providing a surgical instrument (22) having an inner member (56) and an outer member (52). The outer member has a distal region (66) forming a cutting window (70) and an optional distal elevator tip (72). The inner member is rotatably received within the outer member, and has a cutting tip that is exposed at the window. The cutting tip and the distal region of the outer member combine to define a cutting implement (30). An opening is created through the patient's skull to provide access to a brain tumor target site. The cutting implement is delivered through the opening to the target site. The elevator tip is inserted partially between the tumor and tissue of the target site, and the cutting tip is placed into contact with the tumor and operated to cut the tumor. The target site is selectively aspirated to remove cut tumor tissue. The user controls the level of vacuum applied by obturating a hole (210) in the aspiration control device (34) with his finger.
La présente invention concerne un procédé de traitement de tumeur du cerveau comprenant la mise à disposition d'un instrument chirurgical comportant un organe interne et un organe externe. L'organe externe comporte une zone distale formant une fenêtre de coupe et un embout élévateur distal facultatif. L'organe interne est reçu en rotation dans l'organe externe, et présente un embout de coupe qui est exposée au niveau de la fenêtre. L'embout de coupe et la zone distale de l'organe extérieur définissent conjointement un outil de coupe. Une ouverture est créée à travers le crâne du patient pour fournir un accès au site cible de tumeur de cerveau. L'outil de coupe est introduit à travers l'ouverture jusqu'au site cible. L'embout élévateur est introduit en partie entre la tumeur et le tissu du site cible, et l'embout de coupe est placé en contact avec la tumeur et activé pour couper la tumeur. Le site cible est aspiré de manière sélective pour l'ablation du tissu tumoral coupé.
Galvin Roy M.
Oliver Dana A.
Shadeck Louis M.
Spetzler Robert A.
Medtronic Xomed Inc.
Smart & Biggar
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