| 摘要 |
An apparatus for accessing the gastric lumen, allowing elaborate intragastric surgeries to be carried on. The apparatus consists of two parts; an external part and a transgastric part. The named external part is a cylinder ending in a larger part of different shapes, the external part will be equipped with a mechanism to allow instruments to get inside the stomach while preventing gas from escaping out. It will also contain a gas delivery port to allow insufflation of the stomach through the cannula. The named transgastric part consists of a cylinder of variable lengths ending in an internal gastric bolster that will be either solid-type or balloon-type. This part is attached to a tapering introduction system ending in a wire loop to be used for introduction of this part. The apparatus also includes an extraction catheter to be used during removal of transgastric part with solid-type gastric bolster.
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