| CPC A61M 16/0616 (2014.02) [A61M 16/0683 (2013.01); A61B 5/6803 (2013.01); A61B 5/6843 (2013.01); A61M 2205/332 (2013.01); A61M 2205/35 (2013.01); A61M 2205/502 (2013.01)] | 21 Claims |
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1. A respiratory mask comprising:
a seal portion comprising a sealing surface configured to form a seal with a patient's face;
a plurality of elastic sensors are configured to detect a force applied to the seal portion,
wherein the plurality of elastic sensors comprise layered capacitive sensors, and
wherein the plurality of elastic sensors comprise a first longitudinal layer including a first electrode and second and third transverse layers including second and third electrodes overlapping the first electrode, wherein the first and second electrodes from a first capacitive sensor and the first and third electrodes form a second capacitive sensor; and
a controller configured to receive from a user a predetermined minimum leak rate and a predetermined maximum sealing force,
wherein the controller is configured to determine whether the force applied to the seal portion exceeds the predetermined maximum sealing force while the respiratory mask is achieving the predetermined minimum leak rate, and
wherein the controller indicates to the user that a different respiratory mask should be considered for the patient's face when the force applied to the seal portion exceeds the predetermined maximum sealing force.
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