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US 12,746,359 B2Granted
Patient interface
AssigneeResMed Pty Ltd
InventorsMatthew Eves, Ryan Michael Kirkpatrick, Rahul Khera, Adam Francis Barlow, Andrew James Bate
Life of this patent
Estimating the term…
Abstract
A patient interface may include a plenum chamber and a positioning and stabilising structure. The plenum chamber may include a seal-forming structure and a fascia portion. At least a medial portion of the fascia portion is flexible. In embodiments, the patient interface may include a rigidiser to control flexing of the fascia portion.
Claims21
A patient interface comprising:
- a plenum chamber pressurisable to a therapeutic pressure of at least 6 cmH2O above ambient air pressure, said plenum chamber including a plenum chamber inlet port sized and structured to receive a flow of air at the therapeutic pressure for breathing by a patient;
- a first seal-forming structure connected to an oral portion of the plenum chamber, the first seal-forming structure constructed and arranged to form a seal with a region of the patient's face surrounding an entrance to the patient's mouth such that the flow of air at said therapeutic pressure is delivered to the mouth, the first seal-forming structure constructed and arranged to maintain said therapeutic pressure in the plenum chamber throughout the patient's respiratory cycle in use;
- a second seal-forming structure connected to a nasal portion of the plenum chamber, the second seal-forming structure constructed and arranged to form a seal with a region of the patient's face surrounding an entrance to the patient's nose such that the flow of air at said therapeutic pressure is delivered to the nose, the second seal-forming structure constructed and arranged to maintain said therapeutic pressure in the plenum chamber throughout the patient's respiratory cycle in use;
- and
- a vent structure to allow a continuous flow of gases exhaled by the patient from an interior of the plenum chamber to vent to ambient, said vent structure being sized and shaped to maintain the therapeutic pressure in the plenum chamber in use,
- wherein the second seal-forming structure comprises a pair of lateral portions respectively disposed at lateral sides of the second seal-forming structure,
- wherein posterior surfaces of the lateral portions of the second seal forming structure slope in a superior-anterior direction from a boundary of the first and second seal forming structures,
- wherein a boundary between the first seal-forming structure and the second seal-forming structure comprises a ridge, and
- wherein the ridge forms a convex shape along patient-contacting surfaces of the patient interface.
6 more elements
A patient interface comprising:
- a plenum chamber pressurisable to a therapeutic pressure of at least 6 cmH2O above ambient air pressure, said plenum chamber including a plenum chamber inlet port sized and structured to receive a flow of air at the therapeutic pressure for breathing by a patient;
- a first seal-forming structure connected to an oral portion of the plenum chamber, the first seal-forming structure constructed and arranged to form a seal with a region of the patient's face surrounding an entrance to the patient's mouth such that the flow of air at said therapeutic pressure is delivered to the mouth, the first seal-forming structure constructed and arranged to maintain said therapeutic pressure in the plenum chamber throughout the patient's respiratory cycle in use;
- a second seal-forming structure connected to a nasal portion of the plenum chamber, the second seal-forming structure constructed and arranged to form a seal with a region of the patient's face surrounding an entrance to the patient's nose such that the flow of air at said therapeutic pressure is delivered to the nose, the second seal-forming structure constructed and arranged to maintain said therapeutic pressure in the plenum chamber throughout the patient's respiratory cycle in use;
- and
- a vent structure to allow a continuous flow of gases exhaled by the patient from an interior of the plenum chamber to vent to ambient, said vent structure being sized and shaped to maintain the therapeutic pressure in the plenum chamber in use,
- wherein the second seal-forming structure comprises a pair of lateral portions respectively disposed at lateral sides of the second seal-forming structure,
- wherein posterior surfaces of the lateral portions of the second seal forming structure slope in a superior-anterior direction from a boundary of the first and second seal forming structures,
- wherein a boundary between the first seal-forming structure and the second seal-forming structure comprises a ridge, and
- wherein the ridge forms a corner, the first seal-forming structure extending directly from the corner on a first side thereof and the second seal-forming structure extending directly from the corner on a second side thereof.
6 more elements
A patient interface comprising:
- a plenum chamber pressurisable to a therapeutic pressure of at least 6 cmH2O above ambient air pressure, said plenum chamber including a plenum chamber inlet port sized and structured to receive a flow of air at the therapeutic pressure for breathing by a patient;
- a first seal-forming structure connected to an oral portion of the plenum chamber, the first seal-forming structure constructed and arranged to form a seal with a region of the patient's face surrounding an entrance to the patient's mouth such that the flow of air at said therapeutic pressure is delivered to the mouth, the first seal-forming structure constructed and arranged to maintain said therapeutic pressure in the plenum chamber throughout the patient's respiratory cycle in use;
- a second seal-forming structure connected to a nasal portion of the plenum chamber, the second seal-forming structure constructed and arranged to form a seal with a region of the patient's face surrounding an entrance to the patient's nose such that the flow of air at said therapeutic pressure is delivered to the nose, the second seal-forming structure constructed and arranged to maintain said therapeutic pressure in the plenum chamber throughout the patient's respiratory cycle in use;
- and
- a vent structure to allow a continuous flow of gases exhaled by the patient from an interior of the plenum chamber to vent to ambient, said vent structure being sized and shaped to maintain the therapeutic pressure in the plenum chamber in use,
- wherein the second seal-forming structure comprises a pair of lateral portions respectively disposed at lateral sides of the second seal-forming structure,
- wherein posterior surfaces of the lateral portions of the second seal forming structure slope in a superior-anterior direction from a boundary of the first and second seal forming structures,
- wherein a boundary between the first seal-forming structure and the second seal-forming structure comprises a ridge, and
- wherein the ridge extends only across a posterior patient-contacting side of the patient interface and is not present on an anterior non-patient-contacting side of the patient interface.
6 more elements
Dependencies are inferred from the claim text.