Balloon dissector with cannula

Details Balloon dissector with cannula Balloon dissector with cannula

A - Human Necessities

61

B

A61B 17/02 (2006.01) A61B 17/34 (2006.01) A61B 17/00 (2006.01) A61B 17/32 (2006.01)

Patent

CA 2500565

There are disclosed various embodiments of a balloon dissector and balloon tip cannula assembly which are provided to facilitate forming an anatomical space within the body, such as, for example, an anatomical space in the abdominal cavity or extraperitoneal space for facilitating hernia repair surgeries. The balloon dissector and balloon tip cannula assembly generally includes a balloon tip cannula assembly for anchoring the device to the abdominal wall and a balloon dissector assembly having a dissection balloon at a distal end for separating apart tissue layers and forming an anatomical space. Various structures are provided to connect the balloon dissector assembly to the balloon tip cannula assembly. Obturators associated with the balloon dissector assembly and the balloon tip cannula assembly may also be provided. The balloon dissector and balloon tip cannula assembly may also include a scope support for insertion through the balloon dissector assembly and dissection balloon and for receipt of an endoscope to view the procedure from within the balloon. Various combinations of valve ports and sub-assemblies are disclosed for providing inflation fluid to the balloon tip cannula assembly, insufflation fluid for the abdominal cavity and inflation fluid for the dissection balloon.

Dans divers modes de réalisation, l'invention concerne un élément de dissection à ballonnet et une canule à ballonnet d'extrémité facilitant la formation d'un espace anatomique à l'intérieur du corps, notamment dans la cavité abdominale, ou d'un espace extrapéritonéal destiné à faciliter des réparations chirurgicales de hernies. L'ensemble élément de dissection à ballonnet/canule à ballonnet d'extrémité comprend généralement un ensemble canule à ballonnet d'extrémité servant à fixer le dispositif contre la paroi abdominale et un élément de dissection à ballonnet doté au niveau d'une extrémité distale d'un ballonnet de dissection pour la séparation de couches de tissus et la formation d'un espace anatomique. Diverses structures permettent de relier l'élément de dissection à ballonnet et l'ensemble canule à ballonnet d'extrémité. Des obturateurs peuvent être associés auxdits ensembles. L'élément de dissection à ballonnet et l'ensemble canule à extrémité ballonnet peuvent également recevoir un support pour endoscope permettant de suivre l'intervention depuis l'intérieur du ballonnet. Il existe diverses combinaisons d'orifices de soupapes et de sous-ensembles qui permettent d'alimenter l'ensemble canule à ballonnet d'extrémité et le ballonnet de dissection en fluide de gonflage, et d'injecter un liquide d'insufflation dans la cavité abdominale.

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