Mask with integral cushion and forehead piece
AssigneeResMed Limited
InventorMichael Kassipillai GUNARATNAM
Life of this patent
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Abstract
A fastener arrangement for securing at least two components together may include a male fastener with a first screw thread and a female fastener with a second screw thread, wherein one of the first screw thread and the second screw thread is a straight screw thread and the other of the first screw thread and the second screw thread is a hybrid screw thread that includes a tapered screw thread portion and a straight screw thread portion.
Claims29
A respiratory mask configured to provide a supply of breathable gas to a patient's airways at a pressure elevated in the range of 4-20 cm H2O above atmospheric pressure to treat obstructive sleep apnea, the mask comprising:
- a mask frame formed from a first material;
- and
- a mask cushion formed from a second material,
- wherein the first material is different from the second material,
- wherein the second material is more flexible and more resilient than the first material such that the mask cushion is configured to seal the mask frame to the facial regions of a variety of users, and
- wherein the mask frame and the mask cushion comprise a one piece construction having a permanent, overmolded joint between the first material and the second material.
A method of making a respiratory mask configured to provide a supply of breathable gas to a patient's airways at a pressure elevated in the range of 4-20 cm H2O above atmospheric pressure to treat obstructive sleep apnea, the mask comprising:
- permanently bonding together and joining by overmolding a first material and a second material together in a single process to form the respiratory mask in a single piece,
- wherein a mask frame is formed from the first material and a mask cushion is formed from the second material,
- wherein the first material is different from the second material,
- wherein the second material is more flexible and more resilient than the first material such that the mask cushion is configured to seal the mask frame to the facial regions of a variety of users.
A respiratory mask configured to provide a supply of breathable gas to a patient's airways at a pressure elevated in the range of 4-20 cm H2O above atmospheric pressure to treat obstructive sleep apnea, the mask comprising:
- a mask frame formed from a first material;
- and
- a mask cushion formed from a second material,
- wherein the first material is different from the second material,
- wherein the second material is more flexible and more resilient than the first material such that the mask cushion is configured to seal the mask frame to the facial regions of a variety of users, and
- wherein the mask frame and the mask cushion are permanently joined together by a direct, mechanical bond between the first material and the second material in a single process to form a single piece.
Dependencies are inferred from the claim text.