초록 ▼

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 in

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 to become very soft so that pressure points on the tissue of the patient are eliminated.

대표청구항 ▼

A flexible composite intubation tube for connection to a bolus comprising a relatively thin outer layer of plastic material characterized in being pliable and flexible; and an inner concentric layer of plastic material defining a flow path for a fluid, said inner layer having an inner diameter of 0.

A flexible composite intubation tube for connection to a bolus comprising a relatively thin outer layer of plastic material characterized in being pliable and flexible; and an inner concentric layer of plastic material defining a flow path for a fluid, said inner layer having an inner diameter of 0.080 inches and being made of a hydrophilic polymer characterized in being stiff in a dry state and in being very soft and flexible in a wetted state; said layers forming a tube characterized in being sufficiently pliable and self-supporting to be inserted per se into a naso-gastric passage and in being soft and flexible in a wetted state within the naso-gastric passage to avoid creating pressure points therein and without closing said lumen.