Multi-stage nasal filter and method of tuning the filter to a predetermined most penetrating particle size
OwnerFrederick Thomas Stroblinventor
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Abstract
Respiratory devices and methods for their manufacture and use are disclosed. The device features a resiliently deformable element configured to form a perimeter seal with the inner nostril wall and to swab the distal portion of the internal nostril region with a disinfectant during device installation. A first filter stage includes a first filter layer characterized by first geometric convolutions and a first MPPS1 value; and a second filter stage includes a second filter layer characterized by second geometric convolutions and a second MPPS2 value.
Claims11
A method of installing a nasal filter device into a nostril, where the device includes a resiliently deformable component and first filter stage, the method comprising:
- manually opening a sealed envelope containing the device in a liquid antiseptic medium;
- removing the device from the package;
- inserting the device into a distal region of the nostril;
- and
- urging the device from the distal region upwardly into the nostril while simultaneously swabbing the distal region with liquid antiseptic medium present on the perimeter of the deformable component;
- wherein the first filter stage includes a first layer comprising a plurality of folded geometric features forming concave, three dimensional finger-like geometric convolutions.
Dependencies are inferred from the claim text.