User interface device providing improved load distribution functionality
A user interface and load-providing technology, applied to medical preparations containing active ingredients, respiratory masks, pharmaceutical formulas, etc., can solve problems such as reduced treatment compliance, high coefficient of friction, and large shear deformation of the skin
Inactive Publication Date: 2014-03-12
KONINKLJIJKE PHILIPS NV
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Problems solved by technology
This in turn reduces comfort while wearing the patient interface and increases the likelihood of skin damage and erythema formation
[0007] In addition to moisture clogging, the silicone materials used in current patient interface devices have a major disadvantage in that they have very smooth surfaces, typically on the order of 0.1 microns to several microns
These silicone materials have a high coefficient of friction at the skin, which can lead to large shear deformations at the skin
Increased potential for erythema formation and patient discomfort due to high skin loading due to shear deformation
As mentioned above, these discomfort issues lead to lower treatment compliance as they wish to avoid wearing uncomfortable masks
Method used
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[0025] As used herein, the singular forms "a", "an" and "the" include plural reference unless expressly stated otherwise. As used herein, the statement that two or more parts or components are "coupled" means that these parts are directly or indirectly (ie, through one or more intermediate parts or components) joined together or operate together whenever a connection occurs. As used herein, "directly coupled" means that two elements are in direct contact with each other. As used herein, "fixedly coupled" or "fixed" means that two components are coupled so as to move as one while maintaining a constant orientation relative to each other.
[0026] The word "unitary" as used herein means that a component is produced as a single piece or unit. That is, a component that includes pieces that are created separately and then coupled together as a unit is not a "unitary" component or body. As used herein, the statement that two or more parts or components "engage" one another means t...
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Abstract
A cushion member for a user interface device is provided. The cushion member is structured to provide a load distribution functionality responsive to the cushion member being donned by the user, wherein at least a portion of the cushion member has a local stiffness of less than or equal to 100 kPa / mm responsive to a stress increase on the cushion member of 1 kPa - 15 kPa.
Description
field of invention [0001] The present invention relates to user interface devices for delivering gas to and / or from the airway of a user, and more particularly to user interface devices having cushion components that provide improved load distribution. Background technique [0002] Various respiratory masks are known which have a flexible seal and cover the nose, mouth or both of the human user. A seal, also commonly referred to as a cushion, is used to form a seal against the user's face. Due to the seal formed, gas can be provided at a positive pressure within the mask for delivery to the user's airway. In addition, many respirators also employ one or more cushion elements that engage other parts of the user's face / head (such as the forehead, cheeks, or chin) to facilitate attaching the respirator to the user's face / head in a comfortable manner. head. These cushions are typically attached to rigid or semi-rigid shell or frame members that provide support for the mask. ...
Claims
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IPC IPC(8): A61M16/06
CPCA61M16/0633A61M2205/0222A61M2205/0216A61M16/0605A61M16/0683A61M16/06A61M2205/02A61M16/0616A61F5/00A61F13/2002A61K8/0208A61K8/895A61K2800/10A61K2800/54A61Q19/00C08G77/12C08G77/392C08L83/08A61L31/06A61L31/10A61L31/146
Inventor S·阿斯瓦蒂M·克莱N·P·威拉德J·范扎恩坦恩J·R·哈尔曾C·P·亨德里克斯W·波泽R·M·J·冯克恩
Owner KONINKLJIJKE PHILIPS NV