| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a medical instrument having new configuration. <P>SOLUTION: Various embodiments of a balloon dissector 12 combined with a balloon tip cannula 82 are disclosed. They are provided to facilitate forming an anatomical space within the body, such as an anatomical space in the abdominal cavity or extraperitoneal space for facilitating hernia repair surgeries. The combined balloon dissectors with cannula generally include a cannula assembly 80 for anchoring the device to the abdominal wall and a dissector assembly having a dissection balloon at a distal end for separating tissue layers and forming an anatomical space. Various combinations of valve ports 114 and sub-assemblies are disclosed for providing inflation fluid to the balloon tip cannula, and inflation fluid for the dissection balloon. <P>COPYRIGHT: (C)2010,JPO&INPIT |
