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US 2024/0399097 A1Published application
Components for medical circuits
AssigneeFisher & Paykel Healthcare Limited
InventorsDavid John Sims, Enrico Alvarez Garcia, Peter Kenneth Graham
Life of this patent
Estimating the term…
Abstract
Condensation or “rain-out” is a problem in medical circuits and previous attempts to manage and/or prevent rain-out have resulted in relatively expensive and/or difficult to manufacture medical circuit components. The subject patent provides an improved medical circuit component for managing rain-out. In particular the component may be an improved breathing tube, or insufflation system limb comprising a helically corrugated tube preferably incorporating a heater wire.
Claims20
(canceled)
An inspiratory tube comprising:
- an annular corrugation profile, wherein the annular corrugation profile comprises alternating outer crests and inner troughs, wherein each of the outer crests are wider than each of the inner troughs;
- an internal spiral heater wire provided in a lumen of the inspiratory tube;
- an outer sheath disposed about an exterior surface of the inspiratory tube, wherein the outer sheath is heat bonded to the outer crests of the inspiratory tube from a first end of the inspiratory tube to a second end of the inspiratory tube using an extrusion process, and wherein the outer sheath comprises alternating outer crests and inner troughs;
- a first connector at the first end of the inspiratory tube, the first connector configured to a patient interface;
- and
- a second connector at the second end of the inspiratory tube, the second connector configured to connect to an outlet of a humidifier.
3 more elements
A component comprising:
- an annular corrugated tube, comprising a corrugation profile, wherein the annular corrugation profile comprises alternating outer crests and inner troughs, wherein each of the outer crests are wider than each of the inner troughs;
- an internal spiral heater wire provided in a lumen of the annular corrugated tube;
- and
- an outer sheath disposed about an exterior surface of the annular corrugated tube, wherein the outer sheath is heat bonded to the outer crests from a first end of the annular corrugated tube to a second end of the annular corrugated tube using an extrusion process, and wherein the outer sheath comprises alternating outer crests and inner troughs.
1 more element
Dependencies are inferred from the claim text.