Inflating the abdomen for endoscopy. Surgeon's gloved hands insert a needle into the abdomen of a patient, before endoscope surgery. The needle is attached to a tube which provides a flow of carbon dioxide (CO2). The CO2 gas is introduced into the cavity of the abdomen, thereby inflating the abdomen. This provides an empty space within the abdomen into which an endoscope can easily be introduced. An endoscope (not seen) is a steel viewing instrument with a light source and optical fibres. It is a device which allows the surgeon to view internal body organs without resorting to major surgery. Remote-controlled surgical instru- ments can be passed down the endoscope.
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