Tubes for medical systems
AssigneeFisher & Paykel Healthcare Limited
InventorsElmo Benson STOKS, Jayananda MALLINSON
Life of this patent
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Abstract
A medical tube transports gases to and/or from a patient. The medical tube has an elongate film spirally wrapped with an elongate reinforcing member, which bond to form a lumen. The elongate film has a profile such that the elongate film does not protrude into the lumen of the medical tube upon bending of the medical tube. The elongate reinforcing member can have a D-shaped cross section that can contribute to beneficial characteristics of the medical tube. The elongate reinforcing member can also have a circular cross section.
Claims25
A medical tube to transport gases, the medical tube comprising:
- an elongate film spirally wrapped with an elongate reinforcing member to form a lumen, the elongate film bonding with the elongate reinforcing member,
- wherein the elongate film comprises a profile that keeps the elongate film from protruding into the lumen of the medical tube when the medical tube is bent.
A medical tube to transport gases, the medical tube comprising:
- an elongate film spirally wrapped with a elongate reinforcing member to form a lumen, the elongate reinforcing member comprising a D-shaped cross section, the elongate film bonding to a semi-circular part of the D-shaped cross section of the elongate reinforcing member,
- wherein a maximal amount of the elongate film extends between adjacent windings of the elongate reinforcing member without protruding into the lumen.
Dependencies are inferred from the claim text.