Gender based full-face mask sizes
AssigneeFisher & Paykel Healthcare Limited
InventorsAndrew Paul Maxwell Salmon, Tony William Spear, Max Leon Betteridge
Life of this patent
Estimating the term…
Abstract
A respiratory mask for providing positive pressure therapy having ball jointed elbow, one or more detachable forehead pieces and headgear comprising a spacer fabric region is disclosed herein. The elbow is configured to be removable when oriented to a predetermined position. The forehead pieces are provided in one or more sizes. The spacer fabric region comprises two or more layers wherein the raw edges are turned to the inside of the layers. The seal comprises features that improves seal performance and accommodates a wider variety of facial geometries.
Claims20
A mask system comprising:
- a seal support;
- and
- a first seal and a second seal that are interchangeably mountable to the seal support, the first seal having a first size and a second seal having a second size different than the first size,
- wherein the first size is based on facial geometry data of a female population sample and wherein the second size is based on facial geometry data of a male population sample;
- wherein a height of each of the first seal and the second seal is measured between two points located at a mid-point of a sealing surface of the first and/or second seal on a vertical center line, a first point of the two points being located at a nasal bridge region of each of the first and second seals, a second point of the two points being located at a chin region of each of the first and second seals,
- wherein a first width of each of the first and second seals is measured between two lateral points on a perimeter of an internal seal opening,
- wherein the first width of the each of the first and second seals is based on or is the same as a median Cheilion length for the female and male populations respectively;
- and
- wherein the height of the first and second seal is based upon or determined by subtracting 5 mm from a median sublabial-sellion length of the female or male population respectively,
- wherein a second width of the first seal fits a max Cheilion length of 65 mm measured between midpoints of the first seal, and a second width of the second seal fits a max Cheilion length of 76 mm measured between midpoints of the second seal.
Dependencies are inferred from the claim text.