Textured/polished respiratory mask seal and mask
A seal for a respiratory mask that includes a first end portion adapted to be coupled to a mask shell, a second end portion for sealing engagement with a face of a patient, and a sidewall extending between the first end portion and the second end portion. At least a portion of the second end portion includes a textured area having a predetermined pattern. The area of increased surface roughness provides the patient contacting portion of the seal with a silky feeling to maximize patient comfort and the effectiveness of the seal without impairing the sealing ability.
1. A respiratory mask facial seal comprising:
a first end portion;
a second end portion for sealing engagement with a face of a patient; and
a sidewall extending between the first end portion and the second end portion, wherein at least a portion of the second end portion includes a textured area, wherein the textured area has an rms surface roughness greater than 10 micrometers (μm).
2. The seal of claim 1 , wherein the textured area is disposed over an entire patient-contacting surface at the second end portion of the seal.
3. The seal of claim 1 , wherein the textured area is disposed on a first flap operatively connected to the side wall, and further comprising a second flap underlying the first flap.
4. The seal of claim 1 , wherein the second end portion is generally triangular-shaped and sized and configured so as to encompass and airway of a patient responsive to the seal being positioned on such a patient, wherein the textured area is provided around an entire perimeter of the patient contacting surface of the second end portion of the seal.
5. The seal of claim 1 , wherein the seal includes a non-textured area having an rms surface roughness of 10 micrometers or less.
6. A respiratory mask comprising:
(a) a shell having an first opening adapted to be coupled to a patient circuit and a second opening; and
(b) a seal comprising:
(1) a first end portion coupled to the shell,
(2) a second end portion for sealing engagement with a face of a patient, and
(3) a sidewall extending between the first end portion and the second end portion, wherein at least a portion of the second end portion includes a first textured area having an rms surface roughness greater than 10 micrometers (μm).
7. The mask of claim 6 , wherein the first textured area is disposed over an entire patient-contacting surface at the second end portion of the seal.
8. The mask of claim 6 , wherein the first textured area is disposed on a first flap operatively connected to the side wall, and further comprising a second flap underlying the first flap.
9. The mask of claim 6 , wherein the second end portion is generally triangular-shaped and sized and configured so as to encompass and airway of a patient responsive to the seal being positioned on such a patient, wherein the first textured area is provided around an entire perimeter of the patient contacting surface of the second end portion of the seal.
10. The mask of claim 9 , wherein the first textured area is disposed over an entire patient-contacting surface at the second end portion of the seal.
11. The mask of claim 9 , wherein the first textured area is disposed on a first flap operatively connected to the side wall, and further comprising a second flap underlying the first flap.
12. The mask of claim 6 , further comprising:
a forehead support operatively coupled to the shell; and
a patient contacting forehead pad operatively coupled to the shell, wherein at least a portion of the forehead pad includes a second textured area.
13. The mask of claim 12 , wherein the second textured area has an rms surface roughness greater than 10 micrometers (μm).
14. The mask of claim 6 , wherein the seal includes a non-textured area having an rms surface roughness of 10 micrometers or less.