The name and start date are listed (I tried to erase them, but it was impossible, so I've marked it as "slightly dirty"). The usage period was from 2024/12/22 to 2025/4/7, and it was used almost every day. The expiration date is 2027/8. Also, as of 2025/10/2, I pressurized it to 50 kPa and maintained it for 30 minutes, but based on my amateur assessment, I don't think there are any problems like air leaks. In addition, I will include 3 Lacol NF enteral semi-solid formula adapters. The usage overview is as follows, but please read the instruction manual for details. Thank you. ① Insert the nutritional formula container into the main unit. ② Align the end of the nutritional formula container with the end of the mesh to ensure even pressure, and set it in the nutritional formula container insertion space. ③ Set the three-way valve handle to "Air Supply". ④ Pressurize with the manual pump and adjust to the range of 20-50 kPa (release the clamp of the enteral nutrition infusion set ⇒ please read the instruction manual for details). ⑤ Set the three-way valve to "Pressure Maintenance". ⑥ After injecting the nutritional formula, set it to "Degassing" and remove the air. ☆ Pressure bag