External sensor arrangement for patient interface
AssigneeFisher & Paykel Healthcare Limited
InventorsNimansha Budhiraja, Nordyn Alami
Life of this patent
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Abstract
A patient interface mask for use with a breathing assistance apparatus includes a seal that, in use, circumscribes a nose, mouth, or nose and mouth of a patient and defines an interior space of the mask. The mask includes an inlet into the interior space and an outlet from the interior space. A sensor is positioned outside of the interior space and in the path of exit gases exiting the interior space through the outlet. The sensor detects a parameter of the exit gases, such as temperature, humidity or both.
Claims20
A patient interface mask for use with a breathing assistance apparatus, the patient interface mask comprising:
- a seal that, in use, circumscribes at least one of a nose and a mouth of a patient, the seal at least partially defining an interior space of the mask;
- an inlet into the interior space that is configured to receive breathing gases from the breathing assistance apparatus;
- an outlet from the interior space;
- a sensor that, in use, detects a parameter of exit gases exiting the interior space through the outlet, wherein the exit gases are at least one of unused breathing gases supplied to the mask from the breathing assistance apparatus and expired gases from the patient;
- and
- a support arrangement that positions the sensor in a path of the exit gases exiting through the outlet and spaced from the outlet by a distance, the space between the sensor and the outlet being open to atmosphere, the support arrangement comprising two portions that are removably connected to one another, the two portions defining a cavity when connected together, the cavity receiving the sensor;
- the sensor providing sensor data correlated to gases conditions within the mask.
A patient interface mask for use with a breathing assistance apparatus, the patient interface mask comprising:
- a mask body that is secured to a face of a patient when in use, the mask body at least partially defining an interior space;
- the mask also comprising an inlet that is in fluid communication with the interior space and configured to receive breathing gases from the breathing assistance apparatus;
- the mask also comprising an outlet that is in fluid communication with the interior space;
- a sensor that, in use, detects a parameter of exit gases exiting the interior space through the outlet;
- and
- a support arrangement positioning the sensor in a path of the exit gases exiting from the interior space, wherein the support arrangement comprises two portions that are removably connected to one another, the two portions defining a cavity when connected together, the cavity receiving the sensor.
Dependencies are inferred from the claim text.