Devices and methods for placement of partitions within a hollow body organ

摘要

Devices and methods for tissue acquisition and fixation, or gastroplasty, are described. Generally, the devices of the system may be advanced in a minimally invasive manner within a patient's body, e.g., transorally, endoscopically, percutaneously, etc., to create one or several divisions or plications within the hollow body organ. Such divisions or plications can form restrictive barriers within a organ, or can be placed to form a pouch, or gastric lumen, smaller than the remaining stomach volume to essentially act as the active stomach such as the pouch resulting from a surgical Roux-En-Y gastric bypass procedure. Moreover, the system is configured such that once acquisition of the tissue by the gastroplasty device is accomplished, any manipulation of the acquired tissue is unnecessary as the device is able to automatically configure the acquired tissue into a desired configuration.

主权项

1. A method of acquiring tissue from within a hollow body organ, comprising:
positioning a first acquisition member and a second acquisition member coupled to a distal end of an elongate shaft adjacent to a region of tissue within the hollow body organ, the first and second acquisition members each including a tissue adhering cavity; with the first and second acquisition members positioned adjacent the region of tissue, moving the first and second acquisition members from a closed configuration in which the first and second acquisition members are in apposition to one another along a longitudinal axis of the elongate shaft to an open configuration in which the first and second acquisition members remain in apposition to one another along the longitudinal axis, wherein, as the first and second acquisition members are being moved to the open configuration, tissue from the region is being adhered within each of the first and second acquisition members into the tissue adhering cavities of the first and second tissue acquisition members; and moving the first and second acquisition members from the open configuration to the closed configuration, thereby compressing the adhered tissue between the first and second acquisition members in the closed configuration while the tissue remains within the tissue adhering cavities.