Patent attributes
Methods for advancing a device through a gastrointestinal tract. These methods may include inserting a device into the gastrointestinal tract, advancing a first portion of the device having a first vacuum port distally through the gastrointestinal tract away from a second portion of the device having a second vacuum port, sliding the second vacuum port towards the first vacuum port while the first vacuum port is applying suction, preventing tissue from moving distally past the first vacuum port by radially expanding a blocker that is positioned proximal to the first vacuum port, activating vacuum through the second vacuum port to suction tissue of the gastrointestinal tract to the second vacuum port, and releasing vacuum on the first vacuum port and advancing the first vacuum port distally through the gastrointestinal tract a desired distance while the vacuum is activated through the second vacuum port.
