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US 2014/0150800 A1Published application
Patient interface arrangement with adjustable forehead support
AssigneeKoninklijke Philips Electronics N.V.
InventorsHarmina Christina ZEIJLSTRA, Sander Theodoor PASTOOR
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Abstract
The invention provides a patient interface arrangement which has a forehead support which is adjustable by a rotary knob. A sound damping means is provided for damping sounds generated when there is rotational adjustment or clattering of the adjustable components.
Claims15
A patient interface arrangement comprising:
- a patient interface device for communicating with the nose or the nose and mouth of a patient;
- and
- a forehead support coupled to the patient interface device and having a support cushion;
- wherein the forehead support comprises an adjustment mechanism which comprises a rotary knob having a threaded drive shaft, and a threaded driven shaft coupled to the rotary knob drive shaft and to the support cushion, wherein rotation of the rotary knob causes linear movement of the driven shaft and thereby also the support cushion,
- wherein the forehead support further comprises a sound damping means for damping sounds generated when there is relative movement of the drive shaft and driven shaft.
2 more elements
Dependencies are inferred from the claim text.