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US 2017/0080175 A1Published application
Limb for breathing circuit
AssigneeFisher & Paykel Healthcare Limited
InventorNathan Lee Gray
Life of this patent
Estimating the term…
Abstract
A limb for a breathing circuit manufactured from very thin walled polymer materials has an elongate axial reinforcing spine lying freely inside the conduit and fixed to each end connector. The spine is laterally compliant but axially stiff. The spine provides resistance to tensile and compressive loads on the conduit, including that induced by prevailing internal pressures.
Claims21
1-20. (canceled)
A method for manufacturing a limb for a breathing circuit comprising:
- providing a flexible breathing conduit having a first conduit end and a second conduit end and having a wall thickness less than 50 μm,
- locating a reinforcing mesh having a first mesh end and a second mesh end, over the outside of the flexible breathing conduit,
- fixing a first end connector with the first conduit end of the flexible breathing conduit, and the first mesh end of the reinforcing mesh, and
- fixing a second end connector with the second conduit end of the flexible breathing conduit and the second mesh end of the reinforcing mesh.
1 more element
A limb for a breathing circuit comprising:
- a conduit having a first conduit end and a second conduit end and having a wall thickness less than 50 μm,
- a first connector fixed to the first end of the conduit,
- a second connector fixed to the second end of the conduit, and
- a braided sheath surrounding the conduit and being fixed at and around one sheath end to the first connector and at and around the other sheath end to the second connector.
1 more element
Dependencies are inferred from the claim text.