Endoscopes having multiple lumens for tissue acquisition and removal and related methods of use

摘要

Embodiments of the invention include an endoscope including multiple lumens for tissue acquisition and removal and related methods of use.

主权项

1. An apparatus, comprising:
an endoscope including a first lumen and a second lumen; an elongate member disposed in the first lumen and defining a working lumen and a fluid lumen; and a tissue acquisition device disposed in the working lumen and a tissue removal device disposed in the second lumen, both the tissue acquisition device and the tissue removal device being moveable relative to the endoscope, wherein the tissue removal device includes an elongate member defining a suction lumen, and wherein an expandable distal assembly is coupled to the tissue removal device and configured to be in a collapsed configuration in the second lumen and in an expanded configuration in a body lumen, the expandable distal assembly being configured to accommodate both the tissue removal device and a distal assembly of the tissue acquisition device in the expanded configuration, wherein the tissue acquisition device is configured to acquire a tissue sample from the body lumen and selectively control the tissue sample when the tissue sample is unattached from the body lumen, and the tissue removal device is configured to capture the tissue sample when the tissue sample is unattached from the body lumen and to remove the tissue sample from the tissue acquisition device.