WO-2026095125-A1 - CUSHION-TYPE BEDSORE PREVENTION DEVICE HAVING AIR POCKETS

WO2026095125A1WO 2026095125 A1WO2026095125 A1WO 2026095125A1WO-2026095125-A1

Abstract

A cushion according to an embodiment of the present invention comprises: a base part comprising a first base that serves as a seating part and a second base that is provided along the periphery of the seating part; and an air mat surrounded by the second base, wherein the air mat comprises at least one air cell of which the volume varies according to air pressure, and thus the present invention enables maximizing the pressure-dispersion effect while stably supporting the buttocks and thighs through a hybrid structure.

Inventors

BAEK, SEUNG YEOB
CHO, KI HAN

Assignees

주식회사 네오에이블

Dates

Publication Date: 20260507
Application Date: 20241031

Claims (13)

Central air pocket; A left air pocket formed on one side of the central air pocket above; A right air pocket formed on the other side of the central air pocket above; and An air mat comprising a plurality of air cells arranged in a matrix form.
In paragraph 1, The above plurality of air cells includes a central air cell, and An air mattress in which the central air cell above does not contain filler or contains less filler than the air cells in other zones.
In paragraph 2, An air mattress in which the central air cell overlaps with the central air pocket, the left air pocket, and the right air pocket.
In paragraph 3, An air mattress comprising all of the above central air cells, the air cell corresponding to the central air pocket, the air cell corresponding to the left air pocket, and the air cell corresponding to the right air pocket.
In paragraph 2, The above central air cell is an air mattress formed at the rear.
In paragraph 2, An air mattress in which the boundary of the central air cell, viewed from above, crosses the boundary of the central air pocket, the left air pocket, and the right air pocket.
Includes an air mattress according to any one of paragraphs 1 through 6, A cushion in which each air pocket is connected to at least one of the plurality of air cells to apply air pressure to the at least one air cell.
In Paragraph 7, A cushion further comprising a pressure regulator that is linked to an air pump and can regulate the air pressure supplied to each air pocket.
In paragraph 8, A cushion further comprising a nozzle connecting each of the above air pockets to an air pump.
In Paragraph 9, The above nozzle is a cushion that connects each air pocket to a single air pump.
In Paragraph 10, The above pressure regulating unit comprises: an input unit having at least one user input device; and a valve capable of opening and closing the air pump; a cushion.
In Paragraph 11, The above pressure regulating unit is, Power supply unit; A display unit that informs the user of the current pressure applied to the cushion; and A cushion further comprising: a control unit that receives power from the power supply unit, receives an input signal from the input unit, and controls the display unit and the valve.
In Paragraph 11, The above pressure regulating unit further comprises at least one pressure sensor capable of measuring pressure applied to an air pocket.

Description

Cushion-type pressure ulcer prevention device with air pockets The present invention relates to a cushion-type pressure sore prevention device having an air pocket, and more specifically, to a cushion-type pressure sore prevention device that stably supports the buttocks and thighs through the air pocket while maximizing the pressure distribution effect. Pressure ulcers are injuries caused by continuous pressure on the skin or tissues, primarily affecting individuals who lie or sit for extended periods. They are mainly caused by stagnant blood circulation and are classified into stages based on progression or severity: redness (or stage 1), epidermal damage (or stage 2), dermal damage (or stage 3), and deep tissue damage (or stage 4). In the deep tissue damage stage, the most severe stage, the ulcer extends to deep tissues including muscles or bones, potentially exposing bones, ligaments, or even internal organs, which poses a very high risk of serious infection. Therefore, it is very important to remove continuous and excessive pressure applied to a specific area to prevent and treat pressure ulcers. A representative method to disperse pressure applied to the skin or tissues to enhance the prevention and treatment of pressure ulcers is using an air-inflated cushion (or mattress). The pressure sore prevention cushion, which is inflated with air, is composed of air cells whose volume changes due to air pressure, and can prevent pressure sores by evenly distributing the user's body weight and preventing continuous pressure from being applied to the skin and tissues. However, in the case of conventional pressure sore prevention cushions, it is difficult to verify whether the air pressure for pressure sore prevention is maintained consistently. If the air leaks out, protruding parts of the body, particularly the buttocks or greater trochanter, may come into contact with the floor (grounding), posing a risk of developing pressure sores. Additionally, elderly individuals, people with disabilities, and patients who are at risk of pressure sores due to difficulty controlling their own bodies may experience an unbalanced collapse of posture, leading to a risk of secondary problems such as pelvic deformation. FIG. 1 is a perspective view showing a cushion according to one embodiment of the present invention. FIG. 2 is a perspective view showing a cushion according to another embodiment of the present invention. FIG. 3 is a drawing of a base portion according to one embodiment of the present invention. FIG. 4 is a drawing of a base portion according to embodiments other than FIG. 3. FIG. 5 is a drawing of an air mat according to one embodiment of the present invention. FIG. 6 is a cross-sectional view of an air mattress according to one embodiment of the present invention. FIG. 7 is a drawing showing an air mat, a nozzle, and a pressure control unit according to one embodiment of the present invention. FIG. 8 is an internal view of a pressure control unit according to one embodiment of the present invention. FIG. 9 is a drawing of a pressure control unit according to one embodiment of the present invention. FIG. 10 is a drawing of an input unit and a display unit according to an embodiment of the present invention. FIG. 11 is a block diagram showing the interaction between the components of a pressure control unit according to one embodiment of the present invention. The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the invention, and the present invention is defined only by the scope of the claims. Shapes, sizes, ratios, angles, numbers, etc. disclosed in the drawings for explaining embodiments of the present invention are exemplary, and therefore the present invention is not limited to the depicted details. Throughout the specification, the same reference numerals refer to the same components. Furthermore, in describing the present invention, if it is determined that a detailed description of related prior art may unnecessarily obscure the essence of the present invention, such detailed description is omitted. Where terms such as "includes," "has," or "is made up" are used in this specification, other parts may be added unless "only" is used. Where a component is expressed in the singular, it includes cases where it is included in the plural unless specifically stated otherwise. In interpreting the components, they are interpreted to include a margin of error even in the absence of a separate explicit statement. In the case of describing positional relationships, for exam