Airbag pressure reduction device

By designing an airbag decompression device, including an airbag assembly, an adjustment assembly, and a connecting assembly, the problem of silicone foam dressings easily tearing the skin has been solved, improving comfort and service life, and avoiding pressure injuries.

CN224441624UActive Publication Date: 2026-07-03THE FIRST AFFILIATED HOSPITAL OF SOOCHOW UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
THE FIRST AFFILIATED HOSPITAL OF SOOCHOW UNIV
Filing Date
2025-06-27
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Existing silicone foam dressings are prone to tearing the patient's skin during use, and repeated application affects their adhesiveness, leading to skin damage and failing to effectively reduce pressure injuries.

Method used

Design an airbag decompression device, including an airbag assembly, an adjustment assembly, and a connecting assembly. The airbag assembly contacts the target part of the human body to provide support, the adjustment assembly adjusts the airbag spacing, the connecting assembly is fixed, and the gas volume in the airbag is adjusted in real time with the detection device to maintain comfort.

Benefits of technology

It effectively avoids skin damage, improves user comfort and lifespan, and reduces pressure injury by adjusting the comfort of the airbag in contact with the human body in real time.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure CN224441624U_ABST
    Figure CN224441624U_ABST
Patent Text Reader

Abstract

This utility model relates to an airbag decompression device, belonging to the field of nursing technology. The airbag decompression device includes: an airbag assembly configured to provide support when in contact with a target area of ​​the body; the airbag assembly includes two airbags that inflate under the action of an external air source; an adjustment component that adjusts the distance between the two airbags; and a connecting component that connects to the body after the airbag assembly contacts the target area to fix the airbag assembly in place. The airbag assembly also includes a detection element disposed on each airbag, suitable for detecting characteristic values ​​of the airbag; a control device has a first value range, set according to the comfort level of the target area of ​​the body; when the characteristic value detected by the detection element is outside the first value range, the control device controls the air source to deliver gas into the airbag cavity or to withdraw gas from the cavity. Through the above method, pressure damage to the skin of bedridden patients can be reduced while improving comfort and lifespan.
Need to check novelty before this filing date? Find Prior Art

Description

[Technical Field]

[0001] This application relates to an airbag decompression device, belonging to the field of nursing technology. [Background Technology]

[0002] Currently, most elderly patients in clinical practice are emaciated due to disease-related depletion, resulting in reduced subcutaneous fat. This is especially true for elderly patients in intensive care units who have lost mobility and are chronically depleted by illness, making bony prominence particularly noticeable. Bony prominence typically refers to an abnormal bulge or protrusion in a certain part of the bone. The cause of bony prominence is that emaciated patients who are bedridden for a long time lack the protection of fat, and the ribs on both sides are in prolonged contact with the bed frame when turning over, making the local skin prone to pressure injuries.

[0003] Current decompression techniques involve applying a self-adhesive soft silicone foam dressing to the patient's skin. However, silicone foam dressings have a certain degree of stickiness, and due to the need to observe the patient's skin condition during shift changes, the dressing needs to be frequently torn, which can easily lead to local skin tears. Furthermore, repeated application can also affect the adhesiveness of the silicone foam dressing, not only failing to maximize its effectiveness but also increasing the risk of injury.

[0004] Therefore, it is necessary to improve the existing technology to overcome the aforementioned defects. [Utility Model Content]

[0005] The purpose of this application is to provide an airbag decompression device that can reduce pressure damage to the skin of bedridden patients while improving user comfort and lifespan.

[0006] The purpose of this application is achieved through the following technical solution: an airbag decompression device, signal-connected to a control device, comprising:

[0007] An airbag assembly is configured to contact a target part of the human body to provide support for the target part of the human body; the airbag assembly includes two airbags, the two airbags being connected to an external air source to inflate the two airbags under the action of the external air source.

[0008] An adjustment component is configured to connect to the airbag assembly and adjust the spacing between the two airbags;

[0009] A connecting component is connected to each of the two airbags respectively. The connecting component is configured to connect to the human body after the airbag assembly comes into contact with the target part of the human body, so as to fix the airbag assembly.

[0010] The airbag assembly further includes a detection element disposed on each airbag, the detection element being adapted to detect the characteristic value of the airbag; the control device has a preset first value range, the first value range being set according to the ergonomic comfort of the target body part; when the characteristic value detected by the detection element is outside the first value range, the control device controls the air source to deliver gas into the cavity of the airbag or to extract gas from the cavity.

[0011] In one embodiment, the detection element is disposed on a first surface of the airbag, the first surface being the contact surface between the airbag and the target part of the human body;

[0012] The characteristic value is the positive pressure value when the airbag contacts the target part of the human body.

[0013] In one embodiment, the detection element is disposed within the inner cavity of the airbag;

[0014] The characteristic value is the pressure of the gas inside the airbag.

[0015] In one embodiment, each airbag has multiple independently disposed cavities and air nozzles connected to each cavity, and the air source is connected to each air nozzle via a piping assembly.

[0016] In one embodiment, the piping assembly includes a plurality of delivery pipes respectively connected to the air nozzle and the air source, and a shut-off valve disposed within the delivery pipes. The shut-off valve is signal-connected to the control device so that the control device controls the shut-off valve to open or close according to the detection result of the detection element.

[0017] In one embodiment, each airbag includes a body portion having an inner cavity and a partition disposed within the inner cavity, the partition being adapted to divide the inner cavity into a plurality of cavities.

[0018] In one embodiment, each airbag has a clearance portion adapted to avoid contact with the bone of the target body part.

[0019] In one embodiment, the adjustment assembly includes a first adjustment member connected to one of the airbags and a second adjustment member connected to the other airbag, the first adjustment member and the second adjustment member cooperating with each other to connect the two airbags;

[0020] The first adjusting member has multiple rows of locking parts, and the second adjusting member has a fastening part that engages with the locking parts. The fastening part engages with the locking parts in different rows to adjust the distance between the two airbags.

[0021] In one embodiment, the adjustment assembly includes an adjustment body connecting the two airbags, the adjustment body having a tensioning portion that can extend and retract under external force to adjust the distance between the two airbags.

[0022] In one embodiment, the connecting assembly includes a first connecting portion connected to one of the airbags and a second connecting portion connected to the other airbag, wherein the first connecting portion and the second connecting portion are bonded after being wrapped around the human body to fix the airbag assembly to the target part of the human body.

[0023] Compared with existing technologies, this application has the following advantages: By incorporating an airbag assembly, an adjustment assembly, and a connecting assembly, the airbag assembly includes two airbags connected to an external air source. Under the action of the external air source, these airbags inflate to provide support and prevent skin damage to the target body part. The adjustment assembly is positioned between the two airbags to adjust their spacing, allowing them to contact target body parts of different body types. The connecting assembly connects to each of the two airbags. After the airbag assembly contacts the target body part, the connecting assembly connects to the body, thus securing the airbag assembly. This is more convenient, faster, and extends the service life. Furthermore, each airbag is equipped with a detection element. This element detects the characteristic value of the airbag. When the detected value is outside a preset first value range within the control device, the control device controls the air source to deliver gas into or remove gas from the airbag cavity, thereby adjusting the comfort level of the contact between the airbag and the target body part, further preventing pressure damage and improving safety. [Attached Image Description]

[0024] Figure 1 This is a schematic diagram of the airbag decompression device of this application.

[0025] Figure 2 This is another structural schematic diagram of the airbag decompression device of this application.

[0026] Figure 3 This is a schematic diagram of the airbag structure of this application.

[0027] Figure 4 This is a control schematic diagram of the airbag decompression device of this application.

Detailed Implementation Methods

[0028] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application will be described in detail below with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are for illustrative purposes only and are not intended to limit the scope of this application. Furthermore, it should be noted that, for ease of description, only the parts relevant to this application are shown in the accompanying drawings, not the entire structure. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this application.

[0029] The terms “comprising” and “having”, and any variations thereof, used in this application are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the steps or units listed, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to such process, method, product, or apparatus.

[0030] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0031] Please see Figures 1 to 4 As shown, a preferred embodiment of this application provides an airbag decompression device for contacting a target part of the human body to provide support and prevent pressure injury caused by prolonged contact between the target part and the bed unit. In this embodiment, the target part of the human body can be the ribs. In other embodiments, the target part of the human body can also be the feet, legs, hips, etc., without specific limitation, depending on the actual situation.

[0032] The airbag decompression device is connected to an external air source 6, which supplies gas to the device, causing it to inflate and support the target area of ​​the body. When not in use, the gas can be easily removed from the device for convenient and quick storage.

[0033] Among them, the gas source 6 mentioned above is a miniature air pump, or an air pump and an air cylinder connected to the air pump, etc., which is not specifically limited here and depends on the actual situation.

[0034] The airbag decompression device is signal-connected to the control device 4; therefore, the airbag decompression device can be adjusted under the control of the control device 4. Specifically, in this embodiment, adjustment refers to the control device 4 controlling the internal pressure of the airbag decompression device.

[0035] Control device 4 may include storage and processing circuitry for controlling system operations. The circuitry may include storage devices such as hard disk drive storage devices, non-volatile memory (e.g., electrically programmable read-only memory configured to form a solid-state drive), volatile memory (e.g., static or dynamic random access memory), etc. The circuitry in the control circuitry may be based on one or more microprocessors, microcontrollers, digital signal processors, baseband processors, power management units, audio chips, graphics processing units, application-specific integrated circuits (ASICs), and other integrated circuits. Software code (instructions) may be stored in the circuitry's memory and run on the processing circuitry in the circuitry to perform system operations (e.g., data collection operations, operations involving adjusting components using control signals, image rendering operations to generate image content to be displayed to the user, etc.).

[0036] Control may include wireless circuitry and / or other circuitry, if necessary, to support communication with a computer or other external devices (e.g., providing displayable computer and image content). During operation, the control circuitry can provide image content to be displayed. The content may be remotely received (e.g., from a computer or other content sources coupled to the system) and / or may be generated by the control circuitry (e.g., text, other computer-generated content, etc.). The displayed content is provided by the control circuitry so that the viewer can view it in a window.

[0037] It is worth noting that the control device 4 in this embodiment uses a conventional circuit structure, and its control program has not been improved. For example, conventional numerical comparison can be implemented using logic circuits and conventional logic programs.

[0038] Specifically, the airbag decompression device includes an airbag assembly 1, an adjustment assembly 2, and a connecting assembly 3. The airbag assembly 1 is configured to contact the target part of the human body, thereby providing support to the target part of the human body.

[0039] The airbag assembly 1 includes two airbags 11, which are connected to an external air source 6 to inflate under the action of the external air source 6. To improve user comfort, the airbags 11 can be made of silicone and covered with a medical soft cloth made of cotton, which is easy to disinfect and can also absorb sweat, thus ensuring the comfort of the airbags 11 in contact with the target parts of the human body.

[0040] In other embodiments, the airbag assembly 1 may include three airbags 11, with adjacent airbags 11 connected together. In this embodiment, only the number of airbags 11 differs; other configurations are the same. Therefore, in other embodiments, the number of airbags 11 in the airbag assembly 1 may also be other, such as four, five, or six, depending on the actual situation, and is not specifically limited here.

[0041] Each airbag 11 has a clearance portion 12, which is adapted to avoid contact with the bones of a target part of the human body. In this embodiment, the airbag 11 is arranged in a ring shape, and the clearance portion 12 is the hollow part of the ring-shaped airbag 11. When the airbag 11 comes into contact with the target part of the human body, the position of the human bone is aligned with the hollow part of the airbag 11, avoiding pressure on the human bone by the airbag 11 and further ensuring user comfort.

[0042] In another embodiment, the airbag 11 is circular with a recess in the center, which is the aforementioned clearance portion 12. When the airbag 11 comes into contact with the target area of ​​the human body, since the recess is recessed inward from the surface of the airbag 11, the recess also does not come into contact with the human bones, thus avoiding pressure on the human bones by the airbag 11 and further ensuring comfort during use. The depth of the recess can be set according to the shape of the bones of the target area of ​​the human body, and is not specifically limited here.

[0043] Each airbag 11 has multiple independently disposed cavities 111 and air nozzles 13 connected to each cavity 111. An air source 6 is connected to each air nozzle 13 via a piping assembly. By providing multiple independent cavities 111, the airbag 11 can achieve different levels of inflation within each cavity 111 based on the shape of the target body part when in contact with it, thus ensuring a snug fit between the airbag 11 and the target body part, further enhancing comfort. In this embodiment, the air nozzles are located on the outer side of the airbag 11 to ensure comfort and ease of use.

[0044] In this embodiment, each airbag 11 includes a body portion having an inner cavity and a partition disposed within the inner cavity. The partition is adapted to divide the inner cavity into multiple cavities 111, thereby simplifying the manufacturing process.

[0045] In another embodiment, each airbag 11 may be assembled from multiple airbags, which are set independently and then connected by splicing, bonding or other methods. No specific limitation is made here, but it depends on the actual situation.

[0046] The airbag assembly 1 also includes a detection element 14 disposed on each airbag 11, the detection element 14 being adapted to detect characteristic values ​​of the airbag 11. The control device 4 has a preset first value range, which is set according to the ergonomic comfort of the target body part; when the characteristic value detected by the detection element 14 is outside the first value range, the control device 4 controls the air source 6 to deliver gas into the cavity 111 of the airbag 11 or to extract gas from the cavity 111.

[0047] For example, when the feature value detected by the detector 14 is lower than the first value range, the control device 4 controls the gas source 6 to deliver gas into the cavity 111 of the airbag 11; when the feature value detected by the detector 14 is higher than the first value range, the control device 4 controls the gas source 6 to extract gas from the cavity 111.

[0048] In one embodiment, the detection element 14 is disposed on a first surface of the airbag 11, which is the contact surface between the airbag 11 and the target part of the human body; the characteristic value is the positive pressure value of the airbag 11 in contact with the target part of the human body. That is, in this embodiment, the detection element 14 is a pressure sensor, which can be a thin-film sensor or the like. When the airbag 11 contacts the target part of the human body, the pressure sensor is compressed, thereby detecting the relevant positive pressure value.

[0049] As mentioned above, the airbag 11 is provided with multiple cavities 111. When the airbag 11 comes into contact with the target part of the human body, the positive pressure on the multiple cavities 111 is actually inconsistent. Therefore, a detection element 14 is provided on the first surface of the airbag 11 that is directly opposite to the multiple cavities 111, so as to detect the positive pressure value of each part of the airbag 11 in real time.

[0050] In another embodiment, the detection element 14 is disposed within the inner cavity of the airbag 11; the characteristic value is the pressure value of the gas inside the airbag 11. That is, in this embodiment, the detection element 14 is a pressure sensor that detects the pressure value of the gas inside each cavity 111.

[0051] Consistent with the above embodiments, the airbag 11 is provided with multiple cavities 111. When the airbag 11 comes into contact with the target part of the human body, the pressure on the multiple cavities 111 is actually inconsistent. Therefore, a detection element 14 is provided in each cavity 111 to detect the pressure value in each cavity 111 of the airbag 11 in real time.

[0052] As described above, the air source 6 is connected to the air nozzle 13 of each cavity 111 via a piping assembly. The piping assembly includes multiple delivery pipes connecting the air nozzle 13 and the air source 6 respectively, and a shut-off valve 5 installed within the delivery pipes. The shut-off valve 5 is signal-connected to the control device 4, so that the control device 4 controls the shut-off valve 5 to open or close according to the detection result of the detection element 14. When the characteristic value detected by the detection element 14 is within the first value range, the control device 4 controls the shut-off valve 5 to close; otherwise, the control device 4 controls the shut-off valve 5 to open.

[0053] Adjustment assembly 2 is configured to connect to airbag assembly 1 and adjust the spacing between the two airbags 11. Adjustment assembly 2 includes a first adjustment member connected to one of the airbags 11 and a second adjustment member connected to the other airbag 11, the first and second adjustment members cooperating with each other to connect the two airbags 11.

[0054] In one embodiment, the first adjusting member has multiple rows of locking portions 21, and the second adjusting member has a fastening portion 22 that engages with the locking portions 21. The fastening portion 22 engages with locking portions 21 in different rows to adjust the distance between the two airbags 11. For example, when the fastening portion 22 engages with the locking portion 21 located in the first row, there is a first distance between the two airbags 11; when the fastening portion 22 engages with the locking portion 21 located in the last row, there is a second distance between the two airbags 11, and the first distance is smaller than the second distance.

[0055] In this case, one of the locking part 21 and the fastening part 22 can be a buckle, and the other can be a hook.

[0056] In another embodiment, the adjustment assembly 2 includes an adjustment body connecting the two airbags 11. The adjustment body has a tensioning part that can extend and retract under external force to adjust the distance between the two airbags 11.

[0057] The connecting component 3 is connected to the two airbags 11 respectively. The connecting component 3 is configured to connect to the human body after the airbag component 1 comes into contact with the target part of the human body, so as to fix the airbag component 1.

[0058] Specifically, the connecting component 3 includes a first connecting portion 31 connected to one of the airbags 11 and a second connecting portion 32 connected to the other airbag 11. The first connecting portion 31 and the second connecting portion 32 are wrapped around the human body and then glued together to fix the airbag component 1 to the target part of the human body. In this embodiment, the first connecting portion 31 and the second connecting portion 32 are Velcro.

[0059] The width of the first connecting part 31 and the second connecting part 32 is greater than or equal to 20cm to prevent pressure damage to the human body due to insufficient contact area when the first connecting part 31 and the second connecting part 32 come into contact with the human body. Furthermore, the side of the first connecting part 31 and the second connecting part 32 facing the human body can be provided with a cushioning and skin-friendly material such as cotton cloth to further avoid pressure damage to the human body.

[0060] In summary: By incorporating an airbag assembly 1, an adjustment assembly 2, and a connecting assembly 3, the airbag assembly 1 includes two airbags 11 connected to an external air source 6. Under the action of the external air source 6, these airbags inflate to provide support to the target area of ​​the human body, preventing skin damage. The adjustment assembly 2 is positioned between the two airbags 11 to adjust their spacing, allowing them to contact target areas of different body types. The connecting assembly 3 is connected to each of the two airbags 11. After the airbag assembly 1 contacts the target area of ​​the human body, the connecting assembly 3 connects to the human body... The connection further secures the airbag assembly 1, making it more convenient and faster, and improving its service life. In addition, each airbag 11 is also equipped with a detection element 14, which is used to detect the characteristic value of the airbag 11. When the detection value of the detection element 14 is outside the first value range preset in the control device 4, the control device 4 controls the air source 6 to deliver gas into the cavity 111 of the airbag 11 or to extract gas from the cavity 111, thereby adjusting the comfort of the airbag 11 in contact with the target part of the human body, further avoiding pressure damage to the target part of the human body, and improving the safety of use.

[0061] The above is only one specific implementation of this application, and any other improvements made based on the concept of this application shall be considered within the scope of protection of this application.

Claims

1. An airbag decompression device, signal-connected to a control device, characterized in that, include: An airbag assembly is configured to contact a target part of the human body to provide support for the target part of the human body; the airbag assembly includes two airbags, the two airbags being connected to an external air source to inflate the two airbags under the action of the external air source. An adjustment component is configured to connect to the airbag assembly and adjust the spacing between the two airbags; A connecting component is connected to each of the two airbags respectively. The connecting component is configured to connect to the human body after the airbag assembly comes into contact with the target part of the human body, so as to fix the airbag assembly. The airbag assembly further includes a detection element disposed on each airbag, the detection element being adapted to detect the characteristic value of the airbag; the control device has a preset first value range, the first value range being set according to the ergonomic comfort of the target body part; when the characteristic value detected by the detection element is outside the first value range, the control device controls the air source to deliver gas into the cavity of the airbag or to extract gas from the cavity.

2. The gas cell pressure relief device of claim 1, wherein, The detection element is disposed on the first surface of the airbag, and the first surface is the contact surface between the airbag and the target part of the human body; The characteristic value is the positive pressure value when the airbag contacts the target part of the human body.

3. The gas cell pressure relief device of claim 1, wherein, The detection element is disposed inside the cavity of the airbag; The characteristic value is the pressure of the gas inside the airbag.

4. The gas cell pressure reducing apparatus as claimed in any one of claims 1 to 3, wherein Each airbag has multiple independently disposed chambers and air nozzles connected to each chamber, and the air source is connected to each air nozzle via a piping assembly.

5. The gas cell pressure relief device of claim 4, wherein, The pipeline assembly includes multiple delivery pipelines respectively connected to the air nozzle and the air source, and a shut-off valve disposed in the delivery pipeline. The shut-off valve is signal-connected to the control device so that the control device controls the shut-off valve to open or close according to the detection result of the detection element.

6. The gas cell pressure relief device of claim 4, wherein, Each of the airbags includes a body portion having an inner cavity and a partition disposed within the inner cavity, the partition being adapted to divide the inner cavity into a plurality of cavities.

7. The gas pressure reducing device according to any one of claims 1 to 3, wherein Each of the airbags has a clearance portion adapted to avoid contact with the bone of the target body part.

8. The airbag decompression device as described in any one of claims 1 to 3, characterized in that, The adjustment assembly includes a first adjustment member connected to one of the airbags and a second adjustment member connected to the other airbag, the first adjustment member and the second adjustment member cooperating with each other to connect the two airbags; The first adjusting member has multiple rows of locking parts, and the second adjusting member has a fastening part that engages with the locking parts. The fastening part engages with the locking parts in different rows to adjust the distance between the two airbags.

9. The gas cell pressure reducing apparatus as claimed in any one of claims 1 to 3, wherein The adjustment assembly includes an adjustment body connecting the two airbags, the adjustment body having a tensioning part that can extend and retract under external force to adjust the distance between the two airbags.

10. The gas cell pressure reducing apparatus as claimed in any one of claims 1 to 3, wherein The connecting component includes a first connecting part connected to one of the airbags and a second connecting part connected to the other airbag. The first connecting part and the second connecting part are bonded together after being wrapped around the human body to fix the airbag component to the target part of the human body.