After the size and position of the cyst or pseudo-cyst are determined by endosonography, the device is inserted into the endoscope´s operating channel over a guide wire (.025” or .035”).
- For the 6 Fr model you can puncture the stomach or duodenal wall and the cyst directly with the catheter of the device.
- For the 8.5 Fr and 10 Fr models, the stomach or duodenal wall and the cyst must first be punctured using either an EUS needle or the provided diathermic needle. (For the 8.5 Fr models, the EUS needle must have a maximum external diameter of 1.17 mm; for the 10 Fr models, the EUS needle must have a maximum external diameter of 1.66 mm.)
- If necessary, fluids can be aspirated from the cavity through the lateral Luer-Lock adapter located at the proximal end of the device by connecting a compatible Luer-Lock syringe to the port.
- Now connect the active cord to the lateral connector and to the HF generator.
- Switch on electricity and dilate the access previously created and cyst’s opening by pushing forward the device’s metal tip carefully.
- Remove the active cord and leave the device at its position.
- Finally, remove the device out of the working channel, while ensuring that the guide wire stays in position.
- Use the guide wire to place a Double Pigtail or Metallic stent in order to drain the cyst, after the cystostomy.