Pressure sore prevention nursing mattress

Abstract

The utility model relates to the field of medical auxiliary instruments, in particular to a pressure sore prevention nursing mattress which comprises a special-shaped air bag, a strip-shaped air bag, an upper-layer mattress, a middle-layer mattress, a lower-layer mattress and a control module, and the middle-layer mattress and the upper-layer mattress can be folded upwards by taking respective longitudinal center lines as rotating shafts; the strip-shaped air bags are arranged in the transverse direction of the upper-layer mattress, the strip-shaped air bags are tightly arranged in the longitudinal direction of the upper-layer mattress, the strip-shaped air bags are detachably arranged on the upper-layer mattress, and the adjacent strip-shaped air bags can be alternately inflated or deflated; the middle-layer mattress is provided with a temperature control tube, a massage assembly and a ventilation assembly; the lower-layer mattress is provided with a special-shaped air bag, and when the special-shaped air bag is inflated and expanded, the middle-layer mattress and the upper-layer mattress are folded upwards; the control module controls inflation and deflation of the special-shaped air bags and the strip-shaped air bags. The pressure sore prevention nursing mattress provided by the utility model can be directly used on an existing nursing bed, so that compression on local body parts of a patient is reduced, the patient is assisted in turning over, and pressure sores are prevented.

Description

Technical Field

[0001] This utility model relates to the field of medical auxiliary devices, and in particular to a pressure ulcer prevention and care mattress. Background Technology

[0002] For patients who are bedridden for extended periods and unable to change position independently, pressure injuries during prolonged bed rest can severely impact their treatment. Currently available nursing beds are mostly designed for a supine position and cannot automatically change the patient's lying posture. For patients with limited mobility who cannot turn over independently, caregivers must periodically turn them over and change their position to prevent muscle atrophy and pressure injuries caused by prolonged fixed postures, which is extremely inconvenient. Furthermore, turning over severely ill, comatose, fractured, or obese patients places a significant workload on caregivers. Currently, common mattresses have a one-piece internal structure, only allowing for lying down and not providing the necessary turning care. Generally, turning care beds are purchased to meet these needs, but these are costly and require a large area.

[0003] Therefore, there is a need to develop a pressure ulcer prevention mattress that reduces local pressure, assists patients in changing positions, prevents pressure ulcers, improves the patient's care environment, can be used on existing nursing beds, is easy to modify, and enhances patient comfort. Summary of the Invention

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide a pressure ulcer prevention and care mattress.

[0005] To achieve the above objectives, the technical solution of this utility model is as follows:

[0006] An anti-pressure ulcer care mattress includes irregularly shaped airbags, strip-shaped airbags, an upper mattress, a lower mattress, and a control module. The upper mattress is installed above the lower mattress, and the relative positions of the upper and lower mattresses are fixed along the longitudinal center lines of both the upper and lower mattresses. The strip-shaped airbags are arranged transversely along the upper mattress, and are closely arranged longitudinally along the upper mattress. The strip-shaped airbags are detachable from the upper mattress. The lower mattress has six airbag mounting slots. The airbag mounting slots are symmetrically arranged along the longitudinal centerline of the lower mattress. The irregularly shaped airbags are installed in the airbag mounting slots. Each irregularly shaped airbag includes three interconnected and stacked sub-airbags. When the sub-airbags are inflated, their cross-sections are fan-shaped, and the central angle of the fan-shaped section is located on the side of the airbag mounting slot closest to the longitudinal centerline of the lower mattress, so that the upper mattress folds upward with the longitudinal centerline of the upper mattress as its axis. The control module is used to control the inflation and deflation of the irregularly shaped airbags and the strip-shaped airbags.

[0007] Preferably, the system also includes a first air tube, a second air tube, and a first reversing valve assembly. The first air tube is connected to an odd-numbered strip airbag, the second air tube is connected to an even-numbered strip airbag, the first air tube and the second air tube are respectively connected to the first reversing valve assembly, and the first reversing valve assembly is connected to the control module.

[0008] Preferably, the system also includes six third air tubes and a second reversing valve assembly, each of the third air tubes being connected to the irregularly shaped airbag; the six third air tubes being connected to the second reversing valve assembly; and the second reversing valve assembly being connected to the control module.

[0009] Preferably, the upper mattress is provided with a number of fixing straps, all of which are symmetrically arranged with the longitudinal center line of the upper mattress as the axis of symmetry, and are used to fix the strip-shaped airbag.

[0010] Preferably, the mattress also includes a middle layer mattress, which is foldable and positioned between the upper and lower mattresses; the middle layer mattress is equipped with a temperature control tube, which is arranged in a serpentine shape and is used to circulate cold or hot water.

[0011] Preferably, the temperature control tube is symmetrically arranged with the longitudinal centerline of the middle layer mattress as the axis of symmetry, and the input end and output end of the temperature control tube are located on the same side of the middle layer mattress.

[0012] Preferably, the device also includes a massage component, which is embedded in the middle layer of the mattress and symmetrically arranged about the longitudinal centerline of the middle layer of the mattress. The massage component is connected to the control module.

[0013] Preferably, the massage component is located within the opening of the temperature control tube facing the longitudinal centerline of the middle layer mattress.

[0014] Preferably, the system also includes a ventilation component and a third reversing valve component. The ventilation component includes a main pipe and several branch pipes. The main pipe is symmetrically arranged on the middle layer mattress with the longitudinal center line of the middle layer mattress as the axis of symmetry and is connected to the third reversing valve component. The branch pipes are arranged at an angle to the main pipe, and ventilation holes are evenly arranged on the main pipe and the branch pipes. The third reversing valve component is connected to the control module.

[0015] Preferably, the branch pipe is located within the opening on the side of the temperature control pipe facing the middle layer of the mattress.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] (1) The pressure ulcer prevention mattress proposed in this application adopts a multi-layer mattress design. By inflating the irregularly shaped air bladders of the lower mattress, the middle and upper mattresses are folded as the irregularly shaped air bladders inflate, which facilitates the patient to change position. Furthermore, the strip-shaped air bladders of the upper mattress can be inflated or deflated alternately to reduce local pressure and solve the problem that patients are prone to pressure ulcers and increased nursing work when lying flat for a long time.

[0018] (2) The pressure ulcer care mattress proposed in this application embeds a massage component, a breathable component and a temperature control component in the middle layer of the mattress. The massage component massages the patient to improve the stiffness caused by long-term pressure on the body parts. The breathable component allows for ventilation, which is good and keeps the body parts in contact with the mattress dry and comfortable. This improves the breathability and comfort of the pressure ulcer care mattress. In addition, the structure is compact, the layout is reasonable, and the practicality is strong. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall structure of the pressure ulcer prevention mattress proposed in this application, with one side folded up.

[0020] Figure 2 This is a schematic diagram of a partial structure of the pressure ulcer prevention mattress proposed in this application;

[0021] Figure 3 This is an exploded schematic diagram of a portion of the structure of an anti-pressure ulcer care mattress proposed in this application;

[0022] Figure 4 This is a schematic diagram of the structure of the middle layer mattress of the pressure ulcer prevention and care mattress proposed in this application;

[0023] Figure 5 This is a schematic diagram of the structure of the lower mattress of the pressure ulcer prevention and care mattress proposed in this application;

[0024] Figure 6 This is a block diagram illustrating the control principle of an anti-pressure ulcer care mattress proposed in this application;

[0025] Reference numerals: 1. Irregularly shaped airbag; 11. Sub-airbag; 2. Strip-shaped airbag; 3. Upper mattress; 31. Fixing strap; 4. Middle mattress; 41. Temperature control tube; 411. First opening; 412. Second opening; 42. Massage component; 43. Breathing component; 431. Main tube; 432. Branch tube; 433. Ventilation hole; 5. Lower mattress; 51. Airbag mounting slot; 6. Control host; 61. Control module; 62. First air pump; 63. Second air pump; 64. Liquid tank; 65. Water pump; 66. Heater; 67. Cooler; 71. First air pipe; 72. Second air pipe; 73. Third air pipe; 81. First reversing valve assembly; 82. Second reversing valve assembly; 83. Third reversing valve assembly. Detailed Implementation

[0026] The present invention will be further explained below with reference to the accompanying drawings and specific embodiments. The accompanying drawings are merely illustrative to facilitate understanding of the present invention, and their specific proportions can be adjusted according to design requirements. The vertical relationships of relative elements and the definitions of front / back in the graphics described herein should be understood by those skilled in the art to refer to the relative positions of the components; therefore, they can all be flipped to present the same component, and all of this should fall within the scope disclosed in this specification.

[0027] refer to Figures 1 to 6This application discloses an anti-pressure ulcer care mattress, comprising an irregularly shaped airbag 1, strip-shaped airbags 2, an upper mattress 3, a lower mattress 5, a middle mattress 4, and a control host 6. The control host 6 includes a control module 61, a first air pump 62, a second air pump 63, a first reversing valve assembly 81, and a second reversing valve assembly 82. The upper mattress 3 is installed above the lower mattress 5, and the relative positions of the upper mattress 3 and the lower mattress 5 are fixed along the longitudinal center line of the upper mattress 3 and the longitudinal center line of the lower mattress 5. The middle mattress 4 is foldable and positioned between the upper mattress 3 and the lower mattress 5, following the upper mattress 3. The strip-shaped airbags 2 are arranged along the transverse direction of the upper mattress 3, and each strip-shaped airbag 2 is closely arranged along the longitudinal direction of the upper mattress 3. The strip-shaped airbags 2 are detachable from the upper mattress 3. The lower mattress 5 has six airbags installed. The airbag mounting slot 51 is symmetrically arranged along the longitudinal centerline of the lower mattress 5. The irregularly shaped airbag 1 is installed in the airbag mounting slot 51. The irregularly shaped airbag 1 includes three interconnected and stacked sub-airbags 11. When the sub-airbag 11 is inflated, its cross-section is fan-shaped, and the central angle of the fan-shaped section is located on the side of the airbag mounting slot 51 near the longitudinal centerline of the lower mattress 5, so that the upper mattress 3 is folded upward with the longitudinal centerline of the upper mattress 3 as the axis. The first air pump 62, the second air pump 63, the first reversing valve assembly 81 and the second reversing valve assembly 82 are respectively connected to the control module 61. Specifically, the first reversing valve assembly 81 and the second reversing valve assembly 82 each include several reversing valves with multi-directional adjustable channels to realize independent control of inflation or deflation of the irregularly shaped airbag 1 and the strip-shaped airbag 2. In the embodiments of this application, both the first reversing valve assembly 81 and the second reversing valve assembly 82 are connected to the first air pump 62 and the second air pump 63. The control module 61 controls the first air pump 62 to operate and inflates the irregularly shaped airbag 1 or the strip-shaped airbag 2 by controlling the reversing valve of the first reversing valve assembly 81 or the second reversing valve assembly 82 to open the inflation channel. The control module 61 also controls the second air pump 63 to operate and deflates the irregularly shaped airbag 1 or the strip-shaped airbag 2 by controlling the reversing valve of the first reversing valve assembly 81 or the second reversing valve assembly 82 to open the deflation channel. The reversing valve is prior art, and its specific structure and principle will not be further described in this application. In the embodiments of this application, the irregularly shaped airbags 1 of the lower mattress 5 are inflated to facilitate the patient's change of position. Specifically, the middle mattress 4 and the upper mattress 3 fold as the irregularly shaped airbags 1 inflate. During this process, the irregularly shaped airbags 1 have a large support surface, and the middle mattress 4 and the upper mattress 3 will not crowd under the patient as they fold. Moreover, compared with the structure of the bed frame splicing at the folding point of the turning nursing bed, the bending of the middle mattress and the upper mattress can better fit the patient's body and still provide support to the patient, thus improving the patient's comfort.

[0028] In a specific embodiment, it also includes a first air tube 71, a second air tube 72, and six third air tubes 73. The first air tube 71 is connected to the odd-numbered strip-shaped airbags 2, and the second air tube 72 is connected to the even-numbered strip-shaped airbags 2. The first air tube 71 and the second air tube 72 are respectively connected to different reversing valves of the first reversing valve assembly 81. Each third air tube 73 is connected to the irregularly shaped airbag 1. The six third air tubes 73 are respectively connected to different reversing valves of the second reversing valve assembly 82. Specifically, the control module 61 controls the second reversing valve assembly 82 to open the inflation channel or the deflation channel. Gas is inflated or deflated by the six irregularly shaped airbags 1 through the third air tubes 73, such as... Figure 1 As shown, control module 61 controls the second reversing valve assembly 82 to inflate the three irregularly shaped airbags 1 located on one side, causing the sides of the middle mattress 4 and the upper mattress 3 corresponding to the inflated irregularly shaped airbags 1 to fold upwards, assisting the patient in turning to their side; control module 61 controls the first reversing valve assembly 81, causing the reversing valve connected to the first trachea 71 to open the inflation channel and the reversing valve connected to the second trachea 72 to open the deflation channel. Gas inflates the odd-numbered strip airbags 2 through the first trachea 71 and deflates the even-numbered strip airbags 2 through the second trachea 72, causing some parts of the patient's body to be suspended below, reducing pressure on local body parts; Figure 2 As shown, the control module 61 can also control the first reversing valve assembly 81 to inflate all the strip airbags 2 simultaneously, so that all the strip airbags 2 are inflated.

[0029] In a specific embodiment, refer to Figures 1 to 3 The upper mattress 3 has several fixing straps 31, all of which are symmetrically arranged with the longitudinal center line of the upper mattress 3 as the axis of symmetry, and are used to fix the strip airbags 2. Specifically, the fixing straps 31 are elastic straps so that the strip airbags 2 can be threaded through the fixing straps 31, so that the strip airbags 2 will not slip off when inflated or deflated.

[0030] In a specific embodiment, refer to Figure 3 and Figure 4The middle layer mattress 4 is embedded with a temperature control tube 41, a massage component 42, and two breathable components 43. Specifically, the temperature control tube 41 is arranged in a serpentine pattern and is used to circulate cold or hot water. In the embodiments of this application, the control host 6 also includes a liquid tank 64, a water pump 65, a heater 66, and a cooler 67. The liquid tank 64 is used to store water, the heater 66 is used to heat water, and the cooler 67 is used to cool water. In the embodiments of this application, the cooler 67 can be a cooling device including a semiconductor cooling chip for cooling. The water pump 65, heater 66, and cooler 67 are connected to the control module 61. When the temperature of the pressure ulcer care mattress needs to be increased, the control module 61 controls the water pump 65 to draw water from the liquid tank 64, which is then heated by the heater 66 before being input into the temperature control tube 41. The heated water flows through the temperature control tube 41 to heat the pressure ulcer care mattress and then flows back into the liquid tank 64 for recycling. When the temperature of the pressure ulcer care mattress needs to be decreased, the control module 61 controls the water pump 65 to draw water from the liquid tank 64, which is then cooled by the cooler 67 before being input into the temperature control tube 41. The heated water flows through the temperature control tube 41 to cool the pressure ulcer care mattress and then flows back into the liquid tank 64 for recycling. The temperature control tube 41 is symmetrically arranged with the longitudinal centerline of the middle layer mattress 4 as the axis of symmetry, and the input and output ends of the temperature control tube 41 are located on the same side of the middle layer mattress 4. The temperature control tube 41 is evenly distributed in the middle layer mattress 4, ensuring uniform temperature control of the pressure ulcer care mattress. The pressure ulcer prevention mattress proposed in this application features a temperature control tube 41 installed in the middle mattress 4. By circulating cold or hot water through the temperature control tube 41, the mattress temperature can be adjusted to achieve a more comfortable environment. Furthermore, by embedding the temperature control tube 41 within the mattress itself, the safety hazards associated with directly using heaters or semiconductor cooling devices on the mattress are avoided, thus improving safety. A massage component 42 is embedded in the middle mattress 4 and symmetrically arranged about the longitudinal center line of the middle mattress 4. The massage component 42 is connected to a control module 61, which transmits massage commands to the massage component 42 to massage the patient lying on the pressure ulcer prevention mattress.

[0031] In a specific embodiment, the control host 6 further includes a third reversing valve assembly 83, which includes two reversing valves. The ventilation assembly 43 includes a main pipe 431 and several branch pipes 432. The main pipe 431 is symmetrically arranged on the middle mattress 4 with the longitudinal centerline of the middle mattress 4 as the axis of symmetry, and the two main pipes 431 are respectively connected to the two reversing valves of the third reversing valve assembly 83. The third reversing valve assembly 83 is connected to the control module 61. (Reference) Figure 4The branch pipe 432 is set at an angle to the main pipe 431, and ventilation holes 433 are evenly arranged on the main pipe 431 and the branch pipe 432. The control module 61 controls the first air pump 62 and controls the third reversing valve assembly 83 to ventilate the ventilation assembly 43. The gas flows from the ventilation holes 433 to the upper mattress 3, keeping the pressure ulcer care mattress dry and comfortable, and improving the patient's comfort. In the embodiments of this application, refer to Figure 4 The massage component 42 is located in the opening of the temperature control tube 41 facing the longitudinal center line of the middle mattress 4, that is, the massage component 42 is located in the first opening 411; the branch tube 432 is located in the opening of the temperature control tube 41 facing the side of the middle mattress 4, that is, the branch tube 432 is located in the second opening 412, which is a compact structure.

[0032] The following is a specific usage process to further illustrate the pressure ulcer prevention mattress proposed in this application.

[0033] To prevent pressure sores caused by prolonged pressure on the patient's body parts in contact with the mattress due to prolonged bed rest, the control module 61 controls the first air pump 62 or the second air pump 63 to inflate or deflate the irregularly shaped airbag 1, the strip-shaped airbag 2, and the ventilation component 43. Specifically, the control module 61 also needs to control the inflation or deflation channel opened by the reversing valve of the first reversing valve assembly 81 to deflate or inflate the odd and even number of strip-shaped airbags 2. By alternately inflating and deflating the odd and even number of strip-shaped airbags 2, the inflated strip-shaped airbags 2 provide the main support for the patient, while the patient's body parts corresponding to the deflated strip-shaped airbags 2 are prevented from being compressed. Furthermore, the control module 61 can control the second reversing valve assembly 82 to inflate the three irregularly shaped airbags 1 located on the patient's left side, so that the middle mattress 4 on the patient's left side folds over along with the upper mattress 3, allowing the patient to turn to the right and reducing pressure on the patient's left side. Alternatively, the control module 61 can control the second reversing valve assembly 82 to inflate the three irregularly shaped airbags 1 located on the patient's right side, so that the middle mattress 4 on the patient's right side folds over along with the upper mattress 3, allowing the patient to turn to the left and reducing pressure on the patient's right side. The control module 61 can also control the second reversing valve assembly 82 to inflate the three irregularly shaped airbags 1 located on the same side of the patient with different volumes of gas, so that the three irregularly shaped airbags 1 on the same side of the patient have different degrees of expansion. For example, the irregularly shaped airbag 1 corresponding to the lower leg is inflated with a smaller volume of gas than the other two irregularly shaped airbags 1, so that the patient's lower leg can be slightly bent after turning over, allowing the patient to be in a more comfortable position when lying on their side.

[0034] Furthermore, the control module 61 controls the massage component 42 to vibrate, thereby providing a massage to the patient. Since the middle mattress 4 folds along with the upper mattress 3, the massage component 42 can massage the patient's body on the folded side, further relaxing that area. The control module 61 controls the heater 66 or cooler 67 to operate, and controls the water pump 65 to draw water from the liquid tank 64, which is then processed by the heater 66 or cooler 67 and introduced into the temperature control tube 41 to adjust the temperature of the pressure ulcer care mattress. This ensures a suitable temperature between the patient and the mattress, improving patient comfort and avoiding sudden temperature changes that would occur if the heater or cooler were directly placed on the pressure ulcer care mattress to intervene in the temperature between the patient and the mattress, thus reducing the stimulation caused by temperature fluctuations. In the embodiments of this application, the control module 61 controls the first air pump 62 and the third reversing valve assembly 83 to supply air to the ventilation assembly 43. The air flows from the ventilation holes 433 to the upper mattress 3, ventilating the space between the patient and the mattress, keeping the body parts in contact with the mattress dry and comfortable, and providing good breathability. The pressure ulcer prevention nursing mattress proposed in this application can be used directly on existing nursing beds, is simple to modify, not only facilitates assisting patients in changing positions, but also improves the patient's nursing environment, enhances patient comfort, and effectively prevents pressure ulcers.

[0035] The above embodiments are only used to further illustrate the technical solution of this utility model, but this utility model is not limited to the embodiments. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of this utility model shall fall within the protection scope of the technical solution of this utility model.

Claims

1. A pressure ulcer prevention and care mattress, characterized in that: The device includes shaped airbags, strip airbags, an upper mattress, a lower mattress, and a control module. The upper mattress is installed above the lower mattress, and their relative positions are fixed along the longitudinal center lines of both the upper and lower mattresses. The strip airbags are arranged laterally along the upper mattress, and are closely arranged longitudinally. The strip airbags are detachable from the upper mattress. The lower mattress has six airbag mounting slots symmetrically arranged along its longitudinal center line. The shaped airbags are installed in these slots and each shaped airbag includes three interconnected and stacked sub-airbags. When inflated, each sub-airbag has a fan-shaped cross-section, with the central angle of the fan located on the side of the airbag mounting slot closest to the longitudinal center line of the lower mattress, allowing the upper mattress to fold upwards along its longitudinal center line. The control module controls the inflation and deflation of the shaped and strip airbags.

2. The pressure ulcer prevention mattress according to claim 1, characterized in that: It also includes a first air tube, a second air tube, and a first reversing valve assembly. The first air tube is connected to an odd-numbered strip airbag, the second air tube is connected to an even-numbered strip airbag, the first air tube and the second air tube are respectively connected to the first reversing valve assembly, and the first reversing valve assembly is connected to the control module.

3. The pressure ulcer prevention mattress according to claim 1, characterized in that: It also includes six third air tubes and a second reversing valve assembly, each of the third air tubes being connected to the irregularly shaped airbag; the six third air tubes being connected to the second reversing valve assembly; and the second reversing valve assembly being connected to the control module.

4. The pressure ulcer prevention mattress according to claim 1, characterized in that: The upper mattress is provided with several fixing straps, all of which are symmetrically arranged with the longitudinal center line of the upper mattress as the axis of symmetry, and are used to fix the strip-shaped airbag.

5. The pressure ulcer prevention mattress according to claim 1, characterized in that: It also includes a middle mattress, which can be folded up and positioned between the upper and lower mattresses along with the upper mattress; the middle mattress is embedded with a temperature control tube, which is arranged in a serpentine shape and is used to circulate cold or hot water.

6. The pressure ulcer prevention mattress according to claim 5, characterized in that: The temperature control tube is symmetrically arranged with the longitudinal center line of the middle layer mattress as the axis of symmetry, and the input end and output end of the temperature control tube are located on the same side of the middle layer mattress.

7. The pressure ulcer prevention mattress according to claim 6, characterized in that: It also includes a massage component, which is embedded in the middle layer mattress and symmetrically arranged with the longitudinal center line of the middle layer mattress as the axis of symmetry. The massage component is connected to the control module.

8. The pressure ulcer prevention mattress according to claim 7, characterized in that: The massage component is located within the opening of the temperature control tube facing the longitudinal center line of the middle layer mattress.

9. The pressure ulcer prevention mattress according to claim 6, characterized in that: It also includes a ventilation component and a third reversing valve component. The ventilation component includes a main pipe and several branch pipes. The main pipe is symmetrically arranged on the middle layer mattress with the longitudinal center line of the middle layer mattress as the axis of symmetry and is connected to the third reversing valve component. The branch pipes are arranged at an angle to the main pipe, and ventilation holes are evenly arranged on the main pipe and the branch pipes. The third reversing valve component is connected to the control module.

10. The pressure ulcer prevention mattress according to claim 9, characterized in that: The branch pipe is located inside the opening on the side of the temperature control pipe facing the middle layer of the mattress.

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