Pressure sore prevention device

Abstract

The utility model relates to the technical field of nursing equipment, in particular to a pressure sore prevention device, which mainly comprises a flexible cushion body, the flexible cushion body is provided with an attaching surface and an assembling surface which are opposite to each other, and the attaching surface is provided with an air bag area and an attaching area surrounding the air bag area; the edge of the attaching layer is connected with the outer contour of the attaching area, and a containing space is formed between the attaching layer and the air bag area; the multiple air bags are arranged in the air bag area and located in the containing space, all the air bags are attached to the face, facing the air bag area, of the attaching layer, so that the attaching layer protrudes in the direction away from the air bag area, and the air bag can be attached to the well-happened part of the pressure sore of a patient so as to protect the well-happened part of the pressure sore; and meanwhile, a good pressure reduction effect is provided for parts with good pressure sores, so that the pressure sores are prevented from being generated for long-term bedridden patients or patients with mobility inconvenience.

Description

A pressure ulcer prevention device Technical Field

[0001] This utility model relates to the field of nursing equipment technology, and in particular to a pressure ulcer prevention device. Background Technology

[0002] Pressure ulcers are a common complication in patients who are bedridden or have limited mobility. They are mainly caused by prolonged pressure on local tissues, which obstructs blood circulation and leads to tissue ischemia, hypoxia, and necrosis. Pressure ulcers not only cause great pain to patients but also increase medical costs and nursing difficulties. In severe cases, they can even lead to complications such as infection and sepsis, endangering life.

[0003] In current clinical practice, the usual approach is to change the patient's bed position to avoid prolonged pressure on areas prone to pressure ulcers (such as the elbows, tailbone, ankles, heels, and buttocks, which are bony prominences of the body); or to apply foam dressings to these areas to reduce pressure on them. However, these methods are not very effective in preventing pressure ulcers. For example, even if the patient's position is changed, other bony prominences will still experience significant pressure. Foam dressings, due to their material, are less effective in preventing pressure ulcers when the patient maintains the same position for an extended period. Summary of the Invention

[0004] To address the aforementioned issues, this application provides an anti-pressure ulcer device that can be applied to areas prone to pressure ulcers to protect these areas and provide effective pressure relief, thereby preventing pressure ulcers in patients who are bedridden for extended periods or have limited mobility.

[0005] The following technical solution is adopted in this application:

[0006] A flexible pad having an attachment surface and an assembly surface opposite to each other, wherein the attachment surface has an airbag region and an attachment area surrounding the airbag region;

[0007] An adhesive layer, the edge of which is connected to the outer contour of the attachment area, wherein an accommodating space is formed between the adhesive layer and the airbag area;

[0008] A plurality of airbags are disposed in the airbag area and located within the receiving space, wherein each airbag is in contact with the side of the adhesive layer facing the airbag area, such that the adhesive layer protrudes in a direction away from the airbag area.

[0009] The flexible pad can be attached to the patient's pressure ulcer-prone areas through the attachment area to cover the pressure ulcer-prone areas. The adhesive layer protrudes into the pressure ulcer-prone areas under the action of several air bladders to adhere to the patient's pressure ulcer-prone areas. At the same time, when the patient's pressure ulcer-prone areas are subjected to pressure, the air in the flexible pad and air bladders can be compressed, making the whole device easy to deform, thereby reducing the pressure on the patient's local area and improving the effect of preventing pressure ulcers.

[0010] In one illustrative embodiment of an anti-pressure ulcer device, a plurality of airbags are arranged in an array along the length of the airbag region, and in the height of the airbag region, a plurality of airbags are arranged in multiple rows in sequence.

[0011] In one illustrative embodiment of an anti-pressure ulcer device, each airbag is divided into a plurality of first airbags and a plurality of second airbags. Both the first airbags and the second airbags have an inflated state and a contracted state, and the first airbags and the second airbags can switch between the inflated state and the contracted state. The first airbags and the second airbags are arranged alternately, and when one of the first airbags is inflated, the adjacent second airbag is in a contracted state.

[0012] In this configuration, each inflated airbag supports the adhesive layer protruding away from the airbag area to conform to the patient's pressure ulcer-prone areas and provide flexible support. The first and second airbags can switch between the inflated and deflated states; when one first airbag is inflated, the adjacent second airbag is deflated, thus changing the pressure point on the patient's pressure ulcer-prone areas and further improving the effectiveness of pressure ulcer prevention.

[0013] In one illustrative embodiment of a pressure ulcer prevention device, the pressure ulcer prevention device further includes:

[0014] A first airflow assembly and a first pipeline, wherein the first airflow assembly is disposed on the assembly surface, and the first pipeline connects each of the first airbags to the first airflow assembly, and the first airflow assembly is configured to control the first airbags to switch from the inflated state to the contracted state.

[0015] A second airflow assembly and a second conduit are provided on the assembly surface. The second airflow assembly connects each of the second airbags to the second airflow assembly. The second airflow assembly is configured to control the second airbags to switch from the inflated state to the contracted state.

[0016] The first airflow assembly and the second airflow assembly enable the first airbag and the second airbag to switch between an inflated state and a contracted state, thereby facilitating the adjustment and replacement of the pressure position on the patient's pressure ulcer-prone areas.

[0017] In one illustrative embodiment of an anti-pressure ulcer device, the first airflow assembly and the second airflow assembly have the same construction.

[0018] In one illustrative embodiment of a pressure ulcer prevention device, the pressure ulcer prevention device further includes: a control module disposed on the mounting surface; and

[0019] A thin-film pressure sensor is bonded to the side of the bonding surface facing the airbag region, and the thin-film pressure sensor is electrically connected to the control module.

[0020] After the adhesive layer is attached to the patient's body surface, a thin-film pressure sensor is located between the airbag and the patient's body surface. When the patient's body surface is subjected to pressure, the pressure value at that location can be determined by the change in the resistance value of the thin-film pressure sensor, thereby assisting medical staff in providing appropriate care and further improving the prevention of pressure ulcers.

[0021] In one illustrative embodiment of an anti-pressure ulcer device, the control module includes:

[0022] An outer casing is disposed on the mounting surface, wherein a cavity is formed within the outer casing;

[0023] An industrial control board is disposed within the cavity, wherein the thin-film pressure sensor is electrically connected to the industrial control board;

[0024] The display screen is disposed on the outer wall of the housing and is electrically connected to the industrial control board;

[0025] A power supply assembly is disposed within the cavity and electrically connected to the industrial control board.

[0026] The preferred embodiments will be described in a clear and easy-to-understand manner, with reference to the accompanying drawings, to further explain the above-mentioned characteristics, technical features, advantages, and implementation methods of the pressure ulcer prevention device. Attached Figure Description

[0027] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0028] Figure 1 is a schematic structural diagram illustrating one embodiment of a pressure ulcer prevention device.

[0029] Figure 2 is a schematic diagram illustrating a possible embodiment of the bonding layer.

[0030] Figure 3 is a schematic structural diagram of one embodiment of an airbag.

[0031] Figure 4 is a schematic structural diagram illustrating one embodiment of the first airbag and the second airbag.

[0032] Figure 5 is a schematic diagram illustrating one embodiment of the first airflow assembly and the second airflow assembly.

[0033] Figure 6 is a cross-sectional view of the first airflow component in Figure 5.

[0034] Figure 7 is a schematic structural diagram illustrating one embodiment of the release element.

[0035] Figure 8 is a schematic diagram illustrating one embodiment of the exhaust channel.

[0036] Figure 9 is a schematic diagram illustrating one embodiment of the control component.

[0037] Figure 10 is a schematic diagram illustrating one embodiment of the internal structure of the outer shell.

[0038] Label Explanation

[0039] 1. Flexible pad; 11. Attachment surface; 111. Airbag area; 112. Attachment area; 12. Assembly surface; 13. Adhesive layer; 14. Airbag; 141. First airbag; 142. Second airbag; 2. First airflow assembly; 201. Connector; 202. First cavity; 203. Second cavity; 2031. Exhaust duct; 204. One-way valve; 205. Release component; 206. Push rod; 207. Sealing plate; 208. Spring; 21. First pipeline; 3. Second airflow assembly; 31. Second pipeline; 4. Housing; 41. Industrial control board; 42. Display screen; 43. Power supply assembly. Detailed Implementation

[0040] To provide a clearer understanding of the technical features, objectives, and effects of this application, specific embodiments of this application are now described with reference to the accompanying drawings. In the drawings, the same reference numerals indicate components with the same or similar structures but the same function.

[0041] In this document, “illustrative” means “serving as an example, illustration or description”, and any illustration or implementation described herein as “illustrative” should not be construed as a more preferred or advantageous technical solution.

[0042] To keep the drawings concise, only the parts relevant to this application are shown schematically in each drawing, and they do not represent the actual structure of the product. In addition, to make the drawings concise and easy to understand, in some drawings, only one of the components with the same structure or function is shown schematically, or only one of them is labeled.

[0043] Referring to Figures 1-4, it can be seen that this application provides an anti-pressure ulcer device comprising: a flexible pad 1, an adhesive layer 13, and a plurality of air bladders 14. The flexible pad 1 has an attachment surface 11 and an assembly surface 12 facing each other. The attachment surface 11 is divided into an air bladder area 111 and an attachment area 112 surrounding the air bladder area 111. The flexible pad 1 is attached to the patient's body surface through the attachment area 112. In a more specific embodiment, the attachment area 112 is configured as an adhesive layer. The flexible pad 1 is made of medical-grade silicone or a flexible polymer material, which is easily deformable during use to conform to the curve of the human body surface. During use, the flexible pad 1 is attached to the patient's body surface through the adhesive layer.

[0044] The edge of the adhesive layer 13 is connected to the outer contour of the attachment area 112, wherein an accommodating space is formed between the adhesive layer 13 and the airbag area 111; as will be understood by those skilled in the art, the adhesive layer 13 is made of a flexible and elastic material, such as rayon with elastic fibers sandwiched inside, or elastic nonwoven fabric.

[0045] Several airbags 14 are disposed in the airbag area 111 and located within the receiving space. Each airbag 14 is attached to the side of the adhesive layer 13 facing the airbag area 111, causing the adhesive layer 13 to protrude in a direction away from the airbag area 111. Furthermore, the thickness of the attachment area 112 is greater than the height of the protrusion of the adhesive layer 13. After the flexible pad 1 is attached to the patient's body surface, its deformable nature allows it to conform to the physiological curves of the human body surface. Simultaneously, when the flexible pad 1 is subjected to force, it is compressed, and the air in the airbags 14 is compressed, which in turn acts on the pressure ulcer-prone areas, thereby reducing the pressure on these areas and improving the effectiveness of pressure ulcer prevention.

[0046] Referring to Figures 3-4, several airbags 14 are arranged in an array along the length of the airbag region 111, and in the height direction of the airbag region 111, several airbags 14 are arranged in multiple rows. As shown in the figure, in this embodiment, the airbags 14 are arranged in a linear array. In this embodiment, the airbags 14 can form a whole to support the adhesive layer 13, causing the adhesive layer 13 to protrude away from the airbag region 111. At the same time, when individual airbags 14 leak air and shrink, the remaining airbags 14 can still maintain the support of the adhesive layer 13, thereby ensuring that the device can always provide protection for the patient's pressure ulcer-prone areas. Of course, the arrangement of each airbag 14 is not limited to a linear array. As those skilled in the art will understand, the airbags 14 can also be arranged in a circular array; or, in the height direction of the airbag area 111, the multiple airbags 14 can be arranged in an alternating pattern. The specific arrangement can be adapted to the actual design requirements. In this arrangement, the airbag area 111 can be equipped with as many airbags 14 as possible, thereby improving the patient's comfort during use, reducing the pressure on each airbag 14, and making the feeling of each airbag 14 more comfortable for the patient, thus further improving the protective effect.

[0047] To prevent the pressure ulcer-prone areas from being subjected to the reaction force of a single airbag 14 for an extended period, in this embodiment, each airbag 14 is divided into several first airbags 141 and several second airbags 142. Both the first airbags 141 and the second airbags 142 have inflated and deflated states, and can switch between these states. Referring to Figures 3-4, the first airbags 141 and the second airbags 142 are arranged alternately. When one first airbag 141 is inflated... The adjacent second airbag 142 is in a contracted state. In this configuration, the inflated first airbag 141 or second airbag 142 can still support the adhesive layer 13 to protrude away from the airbag area 111, thus conforming to the patient's pressure ulcer-prone area. Simultaneously, by switching the states of the first airbag 141 and the second airbag 142, the pressure point of the patient's pressure ulcer-prone area can be changed during use, preventing the area from being subjected to the reaction force of a single airbag 14 for an extended period, thereby further improving the pressure ulcer prevention effect. As those skilled in the art will understand, each airbag 14 can also be divided into several first airbags 141, several second airbags 142, and several third airbags 14. Similarly, when one of the first airbag 141, several second airbags 142, and several third airbags 14 is inflated, the remaining airbags 14 are in a contracted state. As those skilled in the art will understand, the airbags 14 can also be divided into more groups of airbags 14, which will not be listed here.

[0048] Referring to Figures 5-6, in order to achieve separate control of each first airbag 141 and each second airbag 142, in this embodiment, the pressure ulcer prevention device further includes: a first airflow assembly 2 and a first pipeline 21. The first airflow assembly 2 is disposed on the assembly surface 12, wherein the first pipeline 21 connects each first airbag 141 to the first airflow assembly 2, and the first airflow assembly 2 is configured to control the first airbag 141 to switch from an inflated state to a contracted state.

[0049] The second airflow assembly 3 and the second pipeline 31 are located on the assembly surface 12. The second airflow assembly 3 connects each second airbag 142 to the second airflow assembly 3. The second airflow assembly 3 is configured to control the second airbag 142 to switch from an inflated state to a contracted state.

[0050] The first airflow assembly 2 and the first conduit 21 can control all the first airbags 141. For example, by connecting an external air source to the first airflow assembly 2, gas can be simultaneously injected into each of the first airbags 141, causing each of the first airbags 141 to simultaneously enter an inflated state. Similarly, each of the second airbags 142 can enter an inflated state in the same way. In addition, the first airflow assembly 2 and the second airflow assembly 3 can also release the gas in the first airbags 141 and the second airbags 142 to convert them into a contracted state. As those skilled in the art will understand, the first airbags 141 and the second airbags 142 alternate between the inflated and contracted states, which facilitates medical personnel to adjust and change the pressure points of the patient's pressure ulcer-prone areas, thereby further improving the effect of pressure ulcer prevention.

[0051] Referring to Figures 6-7, it can be seen that the first airflow assembly 2 and the second airflow assembly 3 have the same structure. For example, the first airflow assembly 2 includes a connector 201 and a release member 205. The connector 201 has a first cavity 202 and a second cavity 203, wherein the first cavity 202 and the second cavity 203 are connected. The first cavity 202 is connected to the first pipeline 21. A one-way valve 204 is disposed in the first cavity, which is configured to allow gas to flow into the first pipeline 21. The release member 205 is disposed in the second cavity 203 and blocks the second cavity 203 so that gas will not leak from the first cavity 202.

[0052] Referring to Figures 6-8, an exhaust channel 2031 is provided in the second cavity 203. The release member 205 includes a push rod 206 and a sealing plate 207. The sealing plate 207 is located between the exhaust channel 2031 and the first cavity 202 to close the exhaust channel 2031. The push rod 206 passes through the exhaust channel 2031 and extends out of the second cavity 203. Referring to Figure 7, a spring 208 is also provided in the second cavity 203. The spring 208 is arranged around the outer wall of the push rod 206, and one end of the spring 208 abuts against... At the port of the exhaust channel 2031, the other end of the spring 208 abuts against the end of the push rod 206 away from the sealing plate 207, so that the sealing plate 207 always closes the exhaust channel 2031. In use, when it is necessary to release the gas in the first airbag 141, the push rod 206 is pressed, causing the push rod 206 to move in the direction of the first cavity 202. At this time, the exhaust channel 2031 is open, and the gas is released from the exhaust channel 2031, thereby causing the first airbag 141 to change from an inflated state to a contracted state. In use, for example, each of the first airbags 141 is inflated and connected to an external air source through the connector 201. At this time, the one-way valve 204 is opened under the action of air pressure, and the gas flows from the first cavity 202 through the first pipe into each of the first airbags 141, thereby inflating each of the first airbags 141. Conversely, when the first airbags 141 need to be contracted, the push rod 206 is pressed, causing the sealing plate 207 to move towards the first cavity 202. At this time, the gas in each of the first airbags 141 is discharged through the second cavity 203.

[0053] As will be understood by those skilled in the art, the diameter of the push rod 206 is smaller than the aperture of the exhaust channel 2031, and the diameter of the sealing piece 207 is smaller than the diameter of the second cavity 203 when it is circular, so that gas can flow out when the sealing piece 207 is away from the exhaust channel 2031.

[0054] Alternatively, the first airflow assembly 2 and the second airflow assembly 3 can also be solenoid valves, which, in use, control the gas to fill the first airbag 141 or the second airbag 142 and to discharge the gas from the first airbag 141 or the second airbag 142.

[0055] Referring to Figures 1 and 9-10, the pressure ulcer prevention device further includes a control module and a thin-film pressure sensor. The control module is disposed on the mounting surface 12; the thin-film pressure sensor is adhered to the side of the adhesive layer 13 facing the airbag area 111, and the thin-film pressure sensor is electrically connected to the control module. After the adhesive layer 13 is attached to the patient's body surface, the thin-film pressure sensor is located between the airbag 14 and the patient's body surface. When the patient's body surface is subjected to pressure, the pressure value at that location can be determined by the change in the resistance value of the thin-film pressure sensor, thereby assisting medical personnel in providing appropriate care and further improving the pressure ulcer prevention effect.

[0056] In a more specific embodiment, the control module includes: a housing 4, an industrial control board 41, a display screen 42, and a power supply assembly 43. The housing 4 is located on the assembly surface 12, and a cavity is formed inside the housing 4. The industrial control board 41 is disposed in the cavity, and a thin-film pressure sensor is electrically connected to the industrial control board 41. The display screen 42 is disposed on the outer wall of the housing 4 and is electrically connected to the industrial control board 41. The power supply assembly 43 is disposed in the cavity and is electrically connected to the industrial control board 41. When the patient's body surface is subjected to pressure, the change in the resistance value of the thin-film pressure sensor is transmitted to the industrial control board 41 for conversion to obtain the pressure value at that location, and is displayed on the display screen 42 for medical personnel to view, facilitating corresponding nursing operations. The power supply assembly 43 is used to supply power to the industrial control board 41 and the display screen 42.

[0057] Additionally, referring to Figures 5 and 9, it can be seen that the first airflow assembly 2 and the second airflow assembly 3 extend from the outer shell 4, and the second cavity 203 of the first airflow assembly 2 and the second airflow assembly 3 penetrates the outer shell 4. The two push rods 206 are located on opposite sides of the outer shell 4, so that when in use, the first airbag 141 or the second airbag 142 can be changed from an inflated state to a contracted state by pressing the push rod 206 on the corresponding side.

[0058] It should be understood that although this specification describes various embodiments, not every embodiment contains only one independent technical solution. This way of describing the specification is only for clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

[0059] The detailed descriptions listed above are merely specific descriptions of feasible embodiments of this application and are not intended to limit the scope of protection of this application. All equivalent implementations or modifications made without departing from the spirit of the art of this application, such as combinations, divisions or repetitions of features, should be included within the scope of protection of this application.

Claims

1. A pressure ulcer prevention device, characterized in that, It includes: a flexible pad having an attachment surface and an assembly surface facing each other, wherein the attachment surface has an airbag region and an attachment area surrounding the airbag region; an adhesive layer having an edge connected to the outer contour of the attachment area, wherein an accommodating space is formed between the adhesive layer and the airbag region; and a plurality of airbags disposed in the airbag region and located within the accommodating space, wherein each airbag is attached to the side of the adhesive layer facing the airbag region, such that the adhesive layer protrudes in a direction away from the airbag region.

2. The pressure ulcer prevention device as described in claim 1, characterized in that, Along the length of the airbag region, a plurality of airbags are arranged in an array, and along the height of the airbag region, a plurality of airbags are arranged in multiple rows in sequence.

3. The pressure ulcer prevention device as described in claim 1 or 2, characterized in that, Each airbag is divided into several first airbags and several second airbags. Both the first airbags and the second airbags have an inflated state and a contracted state, and the first airbags and the second airbags can switch between the inflated state and the contracted state. The first airbags and the second airbags are arranged alternately, and when one of the first airbags is inflated, the adjacent second airbag is in a contracted state.

4. The pressure ulcer prevention device as described in claim 3, characterized in that, The pressure ulcer prevention device further includes: a first airflow assembly and a first conduit, wherein the first airflow assembly is disposed on the assembly surface, and the first conduit connects each of the first airbags to the first airflow assembly, and the first airflow assembly is configured to control the first airbags to switch from the inflated state to the contracted state; a second airflow assembly and a second conduit, wherein the second airflow assembly is disposed on the assembly surface, and the second conduit connects each of the second airbags to the second airflow assembly, and the second airflow assembly is configured to control the second airbags to switch from the inflated state to the contracted state.

5. The pressure ulcer prevention device as described in claim 4, characterized in that, The first airflow component and the second airflow component have the same structure.

6. The pressure ulcer prevention device as described in claim 1, characterized in that, The pressure ulcer prevention device further includes: a control module disposed on the mounting surface; and a thin-film pressure sensor bonded to the side of the mounting surface facing the airbag area, and the thin-film pressure sensor being electrically connected to the control module.

7. The pressure ulcer prevention device as described in claim 6, characterized in that, The control module includes: a housing disposed on the mounting surface, wherein a cavity is formed within the housing; an industrial control board disposed within the cavity, wherein the thin-film pressure sensor is electrically connected to the industrial control board; a display screen disposed on the outer wall of the housing and electrically connected to the industrial control board; and a power supply assembly disposed within the cavity and electrically connected to the industrial control board.

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