Fig. 3
Pediatric cell sheet transplantation device. A Diagram of the main components. (1) The carrier consisted of a plastic body and latex balloon (0.13 mm thick), which were glued together. (2) The air tube consisted of a steel wire and polyurethane tube with an outer diameter (OD) of 2.0 mm, male screw connector and hub. The air tube was connected to the carrier throughout the endoscopic cannel. B Delivery mode. A cell sheet was placed inside of the device by suction because the balloon with the cell sheet adhered to the inside wall of the device. By maintaining suction, the cell sheet could easily be delivered to the transplantation site in the esophagus. C Transplantation mode. The cell sheet is expanded and attached to a transplantation site by balloon inflation