| 摘要 |
The composite intubation tube has an outer pliable outer layer of plastic material and an inner concentric layer made of a hydrophilic polymer which becomes very soft and flexible in a wetted state. After intubation in a patient, a flow of gastric fluids or an inflow of nutrient solution wets the inner layer so the tube becomes very soft so that pressure points on the tissue of the patient are eliminated. |
