Pressure sore prevention device for critical nursing

Abstract

The utility model belongs to the field of medical instruments, and particularly relates to a pressure sore prevention device for severe nursing. According to the technical scheme, a bottom mat is included, a plurality of first air bags and second air bags are fixed to the top of the bottom mat in a staggered mode, a breathable wrapping mat used for wrapping the first air bags and the second air bags is fixed to the top of the bottom mat, and the first air bags and the second air bags are each of a U-shaped structure; pressure relief mechanisms used for discharging air when the air pressure in the first air bags or the second air bags reaches a certain value are fixed in the grooves of the first air bags and the second air bags, two air guide pipes used for inflating and deflating the first air bags and the second air bags are fixed in the wrapping cushion, and a hard supporting plate capable of being rolled up is fixed in the bottom cushion. A patient can be ventilated through the pressure relief mechanisms on the first air bag and the second air bag, so that the occurrence rate of pressure sores is reduced, and medical staff can conveniently support the patient through the hard supporting plate when turning over the patient.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the field of medical devices, especially relates to a pressure sore prevention device for critical nursing. BACKGROUND

[0002] Pressure sore is also called pressure ulcer and bed sore, which is caused by long-term compression of local tissue, resulting in continuous ischemia, hypoxia and malnutrition, so that the skin loses normal function, leading to soft tissue ulceration and necrosis. Once pressure sore occurs, it not only brings great physical and psychological pain and economic pressure to the patient, but also increases the work burden of nurses, and even causes sepsis and endangers life. Patients in the intensive care unit need long-term infusion, oxygen inhalation, ECG nursing and other operations, so they are a high-risk group of pressure sores. Therefore, regular turning over, skin cleaning and other nursing work are needed, and a pressure sore prevention device is used to distribute pressure, which can effectively reduce the incidence of pressure sores in critical patients.

[0003] The current pressure sore prevention device mainly uses an inflatable mattress. The mattress is used to periodically release the pressure of different parts of the body by periodically alternating the inflation and deflation of two groups of staggered air bags (each group of air bags is composed of a plurality of independent air bags, that is, the whole is in ABABABA distribution). This can promote blood circulation. However, although this mattress can effectively reduce the occurrence of pressure sores, its air permeability is relatively poor due to the influence of the mattress material and the waterproof layer. This can easily cause the patient to have a hot and humid skin due to the difficulty in discharging body fluids, thereby reducing comfort and even increasing the risk of pressure sores. In addition, when turning over the patient, it is not convenient to use the air cushion as a leverage, so the turning over is difficult and laborious. UTILITY MODEL CONTENTS

[0004] The utility model aims at providing a pressure sore prevention device for critical nursing, which can improve the air permeability of the part in contact with the patient and reduce the difficulty of turning over.

[0005] The pressure sore prevention device for critical nursing comprises a bottom pad, a plurality of first air bags and second air bags are fixed on the top of the bottom pad in a staggered manner, a wrapping pad with air permeability is fixed on the top of the bottom pad and wraps the first air bags and the second air bags, the first air bags and the second air bags are in a "concave" structure, a pressure relief mechanism for discharging air when the air pressure in the first air bag or the second air bag reaches a certain value is fixed in the groove of each first air bag and second air bag, two air guide tubes for inflating and deflating the first air bags and the second air bags are fixed in the wrapping pad, and a hard support plate that can be rolled up is fixed in the bottom pad.

[0006] Further, the inner wall of the wrapping pad is attached to the side wall of each first air bag and second air bag.

[0007] Further, the pressure relief mechanism comprises a mounting box with a plurality of air outlet holes on the top, the mounting box is fixed in the groove of the first air bag and the second air bag, the inner wall of the first air bag and the second air bag at the groove is provided with a first channel which is in communication with the inside and outside, the inner bottom of the mounting box is provided with a second channel which is in communication with the first channel, and the mounting box is provided with a control assembly which is used for opening and closing the second channel according to the air pressure in the first air bag or the second air bag.

[0008] Further, the control assembly comprises a connecting block, the lower portion of the connecting block is provided with a connecting plate which is in sliding cooperation with the connecting block in the up-down direction, the bottom of the connecting plate is fixed with a sealing block which is used for sealing the second channel, and the bottom of the connecting block is fixed with an elastic block, when the elastic block is in the natural state, the second channel is tightly sealed by the sealing block.

[0009] Further, the bottom of the connecting block is fixed with the inner bottom of the mounting box through a plurality of guide rods, and the two ends of the connecting plate are sleeved on different guide rods and are in sliding cooperation with the guide rods in the up-down direction.

[0010] Further, the first air bag and the second air bag are provided with pressure sensors.

[0011] Further, the hard support plate is composed of a plurality of transversely arranged bamboo boards or wooden boards, the adjacent bamboo boards or wooden boards have a certain gap and are woven together by ropes.

[0012] Compared with the prior art, the utility model has the following beneficial effects:

[0013] The utility model discloses a first air bag and a second air bag are periodically alternately inflated and deflated, the pressure of different parts of the patient's body is periodically released, thereby effectively reducing the incidence of pressure sores, then the pressure relief mechanism on the first air bag and the second air bag can discharge the overpressure air in the first air bag and the second air bag and discharge to the air from the wrapping pad with air permeability, thereby avoiding the accumulation of the patient's sweat, secretion and other body fluids, making the contact part of the patient and the wrapping pad in a dry state for a long time, thereby effectively inhibiting the breeding of bacteria and reducing the incidence of pressure sores, and the first air bag and the second air bag with the "concave" type structure can still have a certain gap between the first air bag and the second air bag and the wrapping pad after inflation and expansion, thereby ensuring that the overpressure air in the first air bag and the second air bag can permeate the wrapping pad, the hard support plate can be rolled up, and the air in the first air bag and the second air bag can be released, so that stable support can be provided when the medical staff turns over the patient, the medical staff is more relaxed, meanwhile, the device can be rolled up as a whole when not in use, and the device can be stored and transported, and the convenience of the device is improved. BRIEF DESCRIPTION OF DRAWINGS

[0014] Figure 1The utility model discloses a structure schematic view.

[0015] Figure 2 For Figure 1 The enlarged view of A in the middle;

[0016] Figure 3 It is the inside structure schematic view of first air bag and installation box;

[0017] Figure 4 It is the cooperation schematic view of air pipe, first air bag and installation box;

[0018] Figure 5 For Figure 1 The plan view of the utility model;

[0019] The component name in the drawing: 1, wrapping pad; 2, hard support plate; 3, bottom pad; 4, air pipe; 5, installation box; 6, first air bag; 7, pressure sensor; 8, second air bag; 9, sealing block; 10, connecting block; 11, elastic block; 12, connecting plate; 13, guide rod. DETAILED DESCRIPTION

[0020] The utility model will be further described by specific embodiment in conjunction with the drawings, but not to limit the utility model, any modification, equivalent replacement, improvement etc. that is made within the spirit and principles of the utility model, should be included in the protection scope of the utility model. EMBODIMENT

[0021] The heavy care anti-pressure sore device of the embodiment, including bottom pad 3, the top of bottom pad 3 is fixed with a plurality of first air bags 6 and second air bags 8 staggered, namely the top of bottom pad 3 is fixed with a plurality of first air bags 6 from left to right in order, and the second air bag 8 is arranged between the adjacent two first air bags 6, as Figure 1 And Figure 5 As the first air bag 6 and second air bag 8 staggered distribution, when the first air bag 6 and second air bag 8 are periodically alternately filled and discharged, the pressure of different parts of the patient's body will be periodically " released ", to promote blood circulation, and effectively reduce the incidence of pressure sores, wherein the bottom pad 3 is made of PVC material and coated with a waterproof coating on the outside;

[0022] The top of the bottom pad 3 is fixed with wrapping pad 1 for wrapping the first air bag 6 and second air bag 8 and having air permeability, by wrapping the first air bag 6 and second air bag 8 with wrapping pad 1, the first air bag 6 and second air bag 8 can be avoided to directly contact the patient's body, so as to effectively reduce the skin wet and hot due to the difficulty of body fluid discharge, even aggravate the risk of pressure sores; as Figure 1 And Figure 2As shown, the inner wall of the wrapping pad 1 is in close contact with the side wall of each of the first air bag 6 and the second air bag 8, so that the sliding or bulging of the wrapping pad 1 from the first air bag 6 and the second air bag 8 can be effectively prevented, wherein the wrapping pad 1 is made of cotton or skin-friendly polyester material and has good air permeability;

[0023] The first air bag 6 and the second air bag 8 are both in a "concave" shape structure, as shown in Figure 1 、 Figure 2 、 Figure 3 and Figure 4 As shown, the first air bag 6 and the second air bag 8 are both in a "concave" shape structure, so that a certain gap between the first air bag 6 and the second air bag 8 and the wrapping pad 1 can be ensured after the inflation and expansion of the first air bag 6 and the second air bag 8, so as to ensure that the overpressure air in the first air bag 6 and the second air bag 8 can permeate through the wrapping pad 1;

[0024] Reference Figure 2 、 Figure 3 and Figure 4The mounting box 5 with a plurality of air outlet holes is fixed in the recess of each first air bag 6 and second air bag 8. The first air bag 6 and the second air bag 8 are provided with a first channel communicated with the outside at the inner wall of the recess. The inner bottom of the mounting box 5 is provided with a second channel communicated with the first channel. The mounting box 5 is provided with a connecting block 10. The lower part of the connecting block 10 is provided with a connecting plate 12 in sliding cooperation. The bottom of the connecting plate 12 is fixed with a sealing block 9 for sealing the second channel. The bottom of the connecting block 10 is fixed with an elastic block 11. When the elastic block 11 is in a natural state, the second channel is tightly sealed by the sealing block 9. In actual application, the elastic block 11 can be not needed, and a counterweight can be fixed on the connecting plate 12. The mounting box 5, the connecting block 10, the connecting plate 12, the sealing block 9 and the elastic block 11 constitute a pressure relief mechanism for discharging air when the air pressure in the first air bag 6 or the second air bag 8 reaches a certain value. The connecting block 10, the connecting plate 12, the sealing block 9 and the elastic block 11 constitute a control assembly for opening and closing the second channel according to the air pressure in the first air bag 6 or the second air bag 8. When the air pressure in the first air bag 6 or the second air bag 8 exceeds the threshold value, the excess air can be discharged to ensure the dryness of the skin of the patient, thereby avoiding the accumulation of body fluids such as sweat and secretions of the patient, keeping the contact part of the patient and the wrapping pad 1 in a dry state for a long time, and effectively inhibiting the growth of bacteria and reducing the incidence of pressure sores.

[0025] As shown in Figure 2 , Figure 3 and Figure 4 , the first channel is arranged at the groove bottom of the recess of the first air bag 6 and the second air bag 8. The bottom of the connecting block 10 is fixed with the inner bottom of the mounting box 5 through a plurality of guide rods 13. The two ends of the connecting plate 12 are sleeved on different guide rods 13 and are in sliding cooperation with the guide rods 13. In actual application, the elastic block 11 and the connecting plate 12 in each mounting box 5 are provided with two groups and are distributed in front and back.

[0026] Two air tubes 4 for inflating and deflating the first air bags 6 and the second air bags 8 are fixed in the wrapping pad 1. In this embodiment, one of the air tubes 4 is in communication with all the first air bags 6 and is used to inflate and deflate the first air bags 6, and the other air tube 4 is in communication with all the second air bags 8 and is used to inflate and deflate the second air bags 8, so as to achieve the purpose of periodically and alternately inflating and deflating the first air bags 6 and the second air bags 8. Figure 5 As shown in the figure, one end of each of the two air tubes 4 penetrates through the bottom pad 3. In actual application, the two air tubes 4 are connected to a gas pump with double channels, such as the gas pump used in the existing dynamic anti-bedsores mattress.

[0027] A hard support plate 2 that can be rolled up is fixed in the bottom pad 3. By releasing the air in the first air bags 6 and the second air bags 8, the hard support plate 2 can provide stable support when medical staff turns over the patient, so that the medical staff is more relaxed. At the same time, the device can be rolled up for storage and transportation when not in use, thereby improving the convenience of the device. The hard support plate 2 is composed of a plurality of horizontally arranged bamboo boards or wooden boards, and adjacent bamboo boards or wooden boards have a certain gap and are woven together by a rope. When placed on the ground, the bamboo board mat is more convenient to use than soft cotton.

[0028] When the device is used, the bottom pad 3 is first fixed on the hospital bed by a rope or the like. Then, the first air bags 6 are inflated. After the inflation is completed, the patient lies on the wrapping pad 1. Then, the inflation is continued until the air pressure in the first air bags 6 is sufficient to lift the sealing block 9 and can last for a period of time. Then, the gas pump is turned off (for example, after the pressure limiting valve of the pressure cooker is lifted for a period of time, the gas will still be discharged for a period of time after the fire is turned off). After a period of time and the sealing block 9 blocks the second channel, the gas pump is started to inflate the second air bags 8. Similarly, after the air pressure in the second air bags 8 is sufficient to lift the sealing block 9 and can last for a period of time, the gas pump is turned off. In this way, the patient can be effectively prevented from being in a hot and humid state at the contact part of the wrapping pad 1. When the patient needs to be turned over, the air in the first air bags 6 and the second air bags 8 is released, and the hard support plate 2 is used as a leverage to turn over the patient. Embodiment

[0029] The first air bag 6 and the second air bag 8 are provided with pressure sensors 7, and the air pressure in the first air bag 6 and the second air bag 8 is monitored in real time through the pressure sensors 7, and the opening and closing of the air pump can be intelligently controlled through a microprocessor or a controller, so as to reduce the labor intensity of medical personnel. The controller can be an STM32 series controller, such as an STM32F4 / F7, which has a high-performance ARM Cortex-M core, supports multi-channel ADC (analog-to-digital converter) input, can collect pressure sensor signals in real time, and integrates PWM (pulse width modulation) output for controlling the motor speed of the air pump or the opening and closing of the electromagnetic valve.

Claims

1. A pressure ulcer prevention device for intensive care, comprising a base pad (3), wherein a plurality of first air bladders (6) and second air bladders (8) are alternately fixed to the top of the base pad (3), characterized in that: The top of the base pad (3) is fixed with a breathable wrapping pad (1) for wrapping the first airbag (6) and the second airbag (8). The first airbag (6) and the second airbag (8) are both U-shaped structures. Each groove of the first airbag (6) and the second airbag (8) is fixed with a pressure relief mechanism for venting air when the air pressure in the first airbag (6) or the second airbag (8) reaches a certain value. Two air guide tubes (4) for inflating and deflating the first airbag (6) and the second airbag (8) are fixed inside the wrapping pad (1). A rollable rigid support plate (2) is fixed inside the base pad (3).

2. The pressure ulcer prevention device for intensive care according to claim 1, characterized in that: The inner wall of the wrapping pad (1) is in contact with the side wall of each first airbag (6) and second airbag (8).

3. The pressure ulcer prevention device for intensive care according to claim 2, characterized in that: The pressure relief mechanism includes a mounting box (5) with several air vents on the top. The mounting box (5) is fixed in the grooves of the first airbag (6) and the second airbag (8). The inner walls of the first airbag (6) and the second airbag (8) at the grooves have a first channel that communicates with the inside and outside. The bottom of the mounting box (5) has a second channel that is completely connected to the first channel. The mounting box (5) is equipped with a control component for freely opening and closing the second channel according to the internal air pressure of the first airbag (6) or the second airbag (8).

4. The pressure ulcer prevention device for intensive care according to claim 3, characterized in that: The control component includes a connecting block (10), and a connecting plate (12) is provided below the connecting block (10) and slides down with it. A sealing block (9) for sealing the second channel is fixed at the bottom of the connecting plate (12), and an elastic block (11) is fixed at the bottom of the connecting block (10). When the elastic block (11) is in its natural state, the second channel is tightly sealed by the sealing block (9).

5. The pressure ulcer prevention device for intensive care according to claim 4, characterized in that: The bottom of the connecting block (10) is fixed to the inner bottom of the mounting box (5) by several guide rods (13), and both ends of the connecting plate (12) are fitted on different guide rods (13) and slide up and down with them.

6. The pressure ulcer prevention device for intensive care according to claim 4, characterized in that: Pressure sensors (7) are installed in the first airbag (6) and the second airbag (8).

7. The pressure ulcer prevention device for intensive care according to claim 1, characterized in that: The rigid support plate (2) is composed of several horizontally arranged bamboo or wooden boards with a certain gap between adjacent bamboo or wooden boards and woven together by rope.

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