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AssigneesShanghai Chuangshi Industry Group Co., Ltd., Xi'an Jiatong University
InventorsJue Wang, Litao Fan, Yong You, Sujiao Li, Jianshu Tian, Yuchen Guo, Le Li
Estimating the term…
The present invention relates to a cushion for preventing pressure sore. The cushion for preventing pressure sore includes an air cell layer, an air passage layer, a base layer, and a plurality of air ducts. The air cell layer has a plurality of air cells; the air cell layer is divided into at least four air cell zones. Air cells in each air cell zone are in communication with each other, but air cells in any two adjacent air cell zones are not in communication with each other; the air passage layer is under the air cell layer and has a plurality of air passages therein. Each air passage is in connection and communication with at least one of the air cell zones; the air passage layer and the air cell layer are disposed on the base layer; an end of each air duct is in communication with a corresponding air passage, and the other end extends out of the cushion and is provided with a joint; and each air duct has a respective valve. The cushion for preventing pressure sore according to the present invention can intermittently exert pressure over human buttocks, thereby effectively preventing pressure sores.
A cushion for preventing pressure sore, comprising:
A cushion for preventing pressure sore, comprising:
A cushion for preventing pressure sore, comprising:
A cushion for preventing pressure sore, comprising:
Dependencies are inferred from the claim text.
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Seat parts: detachable or loose seat cushions
Arrangements for preventing bed-sores or for supporting patients with burns, e.g. mattresses specially adapted therefor: with inflatable chambers
With inflatable chambers: with at least two groups of alternately inflated chambers
Chairs
About 6 years 8 months of term left · ends 11 Jul 2033 (estimated)
This application claims the benefit of priority of Chinese Patent Application Serial Number 201210249441.6, entitled “CUSHION FOR PREVENTING PRESSURE SORE,” filed on Jul. 18, 2012, the benefit of priority of which is claimed hereby, and which is incorporated by reference herein in its entirety.
The present invention relates to a cushion, and in particular, to a cushion for preventing pressure sore, which is intended for those who need to keep a sitting posture for a long period of time due to illness or injury.
Pressure sores are nerve malnutrition and blood circulation disorder caused by long-term pressure or long-term physical and chemical stimulus on local body tissues. Continuous ischemia, anoxia, and malnutrition of the local tissues cause the skin to lose normal functions and lead to festering and necrosis of soft tissues. For instance, sustained vertical pressure, or shear and friction on local tissues may cause pressure sores, and usually, pressure sores are caused by two to three joint forces.
FIG. 1A is a three-dimensional schematic view of a cushion in the prior art;
FIG. 1B is a schematic view of distribution of air cell zones of the cushion shown in FIG. 1A;
FIG. 2A is a three-dimensional schematic view of another cushion in the prior art;
The technical solution employed in the present invention to achieve the objective is further illustrated in the following with reference to the accompanying drawings and embodiments of the present invention.
The present invention provides a cushion for preventing pressure sore, which includes:
an air cell layer having a plurality of air cells and being divided into at least four air cell zones, air cells in each air cell zone being in communication with each other, but air cells in any two adjacent air cell zones being not in communication with each other;