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. 2018 Oct 25;4(1):37–39. doi: 10.1016/j.vgie.2018.09.003

Figure 1.

Figure 1

The tissue retractor system consists of an expandable nitinol cage with retractor wires mounted onto a flexible overtube. The expandable cage can be configured to stabilize the working field and grasping devices can be inserted through the articulating channels for tissue manipulation and countertraction during endoscopic resection.