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US 2022/0143351 A1Published application
Limb for breathing circuit
AssigneeFisher & Paykel Healthcare Limited
InventorNathan Lee Gray
Life of this patent
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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.
Claims19
(canceled)
A limb for a breathing circuit comprising:
- a flexible conduit having a first end, a second end, and a breathing gases pathway therebetween defined by a wall, wherein the wall is formed from a helically wound membrane and a helical supporting rib;
- a first connector fixed to the first end of the flexible conduit;
- a second connector fixed to the second end of the flexible conduit;
- an elongate reinforcing member positioned within the flexible conduit, wherein the elongate reinforcing member is connected with the first connector and the second connector;
- and
- a sheath surrounding a portion of the flexible conduit.
3 more elements
Dependencies are inferred from the claim text.