A - Human Necessities – 61 – B
Patent
A - Human Necessities
61
B
A61B 17/3205 (2006.01) A61B 10/04 (2006.01) A61B 17/94 (2006.01) A61M 25/10 (2006.01)
Patent
CA 2648434
The present invention provides apparatus and methods for performing endoscopic mucosal resection and endoscopic submucosal dissection of tissue. In a first embodiment, a catheter having proximal and distal ends and a balloon disposed near the distal end of the catheter is provided. A portion of the distal end of the catheter is configured to be inserted beneath a section of mucosal tissue having a lesion, and the balloon is configured to be inflated to lift the mucosal tissue in an upward direction, thereby facilitating removal of the tissue comprising the lesion. Optionally, a surgeon may advance a needle knife through the catheter to further incise submucosal tissue while the balloon is in the inflated state. If desired, a flushing fluid may be provided to a target site during the procedure.
L'invention porte sur un appareil et des procédés de résection endoscopique de muqueuses et de dissection endoscopique de tissus sous-muqueux. Dans une première exécution, on utilise un cathéter comportant des extrémités proximale et distale et un ballonnet proche de l'extrémité distale. Une partie de l'extrémité distale du cathéter est faite peut s'insérer sous la section du tissu muqueux lésé, et le ballonnet en se gonflant soulève le tissu muqueux lésé vers le haut pour en faciliter l'ablation. Le chirurgien peut facultativement introduire un bistouri aiguille pour inciser le tissu sous-muqueux alors que le ballonnet est gonflé. De même, on peut introduire un fluide de rinçage sur le site cible pendant l'opération.
Karpiel John A.
Skerven Gregory J.
Cassan Maclean
Wilson-Cook Medical Inc.
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