CN211300812U - Air cushion for preventing bedsore - Google Patents

Abstract

The utility model relates to the technical field of medical devices, and discloses an anti-decubitus air cushion, which comprises an air cushion body, a first airbag and a second airbag. The first airbag and the second airbag are arranged perpendicular to the upper surface of the air cushion body. An intake duct is connected to the air source, the second airbag is connected to the air source through the second intake duct, the first airbag is connected to the exhaust device through the first exhaust duct, and the second airbag is connected to the exhaust through the second exhaust duct The device is connected, the outlet ends of the first intake pipe and the first exhaust pipe are connected with the first two-position four-way solenoid valve, and the outlet ends of the second intake pipe and the second exhaust pipe are connected with the second two-position four-way solenoid valve. The outlet ends of the first two-position four-way electromagnetic valve and the second two-position four-way electromagnetic valve are respectively connected with an intake manifold and an exhaust manifold. The anti-decubitus air cushion adopting the technical scheme of the utility model has the advantages of simple structure, good fitting effect with the user, and can effectively prevent decubitus ulcers while improving the comfort of use.

Description

An anti-decubitus air cushion

technical field

The utility model relates to the technical field of medical devices, in particular to an anti-decubitus air cushion.

Background technique

At present, patients with long-term bed rest, spinal cord injury, movement disorder, limited body position, severe cognitive dysfunction, lack of self-care ability, etc. cannot change their body position by themselves, resulting in long-term pressure on local tissues, blood circulation disorders, continuous ischemia, lack of self-care ability, etc. Oxygen and malnutrition lead to tissue damage and necrosis, resulting in bedsores. Decubitus itself is not a primary disease, and most of it is a complication caused by poor care of other primary diseases; however, once a bedsore occurs, it will not only increase the pain of the patient, prolong the recovery time, but also cause sepsis due to secondary infection in severe cases. , even life-threatening.

There are various problems in the existing mattresses on the market suitable for patients. The one-piece rigid mattress has a single fit surface with the patient, and at the same time, the fit with the patient is not good, which is easy to cause bedsores; There is a gap between the two adjacent trachea of the air mattress, which makes the mattress and the skin fit poorly, and the force is uneven, and it is also easy to cause bedsores.

Utility model content

The purpose of the utility model is to provide an anti-decubitus sore air cushion, which has a simple structure, good fit effect with users, and can effectively prevent decubitus ulcers while improving the comfort of use.

In order to achieve the above purpose, the present invention provides an anti-decubitus air cushion, comprising an air cushion body, a first airbag and a second airbag which are alternately distributed above the air cushion body, and the first airbag and the second airbag are perpendicular to each other. It is arranged on the upper surface of the air cushion body, the first air bag is connected to the air source through the first air intake pipe, the second air bag is connected to the air source through the second air intake pipe, and the first air bag is connected to the air source through the first air bag. The exhaust duct is connected to the exhaust device, the second airbag is connected to the exhaust device through the second exhaust duct, and the outlet ends of the first intake duct and the first exhaust duct are both connected to the first two bits. The four-way solenoid valve is connected, the outlet ends of the second intake pipe and the second exhaust pipe are both connected with the second two-position four-way solenoid valve, and the first two-position four-way solenoid valve is connected to the second two-position four-way solenoid valve. The outlet ends of the 2/2 4-way solenoid valve are respectively connected with an intake manifold and an exhaust manifold, the intake manifold is connected with the air source, and the exhaust manifold is connected with the exhaust device.

Preferably, the first airbag and the second airbag are cylindrical airbags, the axial direction of the cylindrical airbag is perpendicular to the upper surface of the air cushion body, and the first airbag and the second airbag are arranged in a vertical direction. The first end is connected with the air cushion body, and the second ends of the first air bag and the second air bag are in contact with the user.

Preferably, the first airbags and the second airbags are alternately distributed on the air cushion body, the first airbags and the two adjacent second airbags are arranged in a triangle, and the second airbags and the second airbags are arranged in a triangle. The two adjacent first airbags are arranged in a triangle.

Preferably, the second ends of the first airbag and the second airbag are bullet-shaped.

Preferably, the air source is an air compressor, and the exhaust device is an air extractor.

Preferably, it also includes an air compressor driver and an air extractor driver, both of which are electrically connected to the controller, and the air compressor driver is connected to the air compressor, so The air extractor driver is connected to the air extractor.

Preferably, a flow sensor is provided on the intake manifold, and the flow sensor is electrically connected to the controller.

Preferably, a pressure sensor is provided on the exhaust manifold, and the pressure sensor is electrically connected to the controller.

Compared with the prior art, an anti-decubitus air cushion according to the embodiment of the present utility model has the following beneficial effects:

In the anti-decubitus air cushion of the embodiment of the present invention, the first air bag and the second air bag are inflated and deflated at intervals, so that the surface of the air cushion body and the human body are formed into a wave-like alternating change, and the pressure on the skin of each part of the patient is changed. Alternately plays the role of manual massage, which not only prevents bedsores but also increases the comfort of the patient, effectively reduces the average unit area pressure and lasting time of the skin on the bottom of the body when sleeping, so as to help the blood flow in the user's flesh and blood vessels more unobstructed. Instead of relying on turning the body over to remove the blood congestion caused by the compressed blood vessels in the cortex, the pain of hypoxia (which can lead to necrosis of intradermal cells) or the risk of bedsores, especially for patients who are bedridden for a long time, it also provides preventive benefits. Due to the effect of treatment, it can reduce the pressure of long-term care for the patient's family and caregivers, and reduce the work of turning over and wiping. Further, the softness and hardness of the first airbag and the second airbag can be controlled by controlling the volume of the gas filled into the first airbag and the second airbag to meet the needs of the patient. Specifically, when the first airbag and the second airbag are used When the inflation volume of the first air bag and the second air bag is 45%-60% of that of the first air bag and the second air bag, the air bag has a better fit with the surface of the human body. Good fit, so that the force point between the first air bag and the second air bag and the user is large, avoiding the phenomenon of bed sores caused by long-term bed rest, and using the two-position four-way solenoid valve can use the same set of inflation, The exhaust device controls the inflation and exhaust of the first airbag and the second airbag, which simplifies the control air circuit and facilitates the manipulation and arrangement.

Description of drawings

Fig. 1 is the structural representation of the anti-decubitus air cushion according to the embodiment of the present invention;

Fig. 2 is the schematic diagram of the contact state between the irregular human body surface and the fully inflated airbag;

Fig. 3 is the schematic diagram of the contact state between the irregular human body surface and the incompletely inflated airbag;

In the figure, 1, the air cushion body, 11, the first air bag, 12, the second air bag; 2, the first two-position four-way solenoid valve, 21, the first station of the first two-position four-way solenoid valve, 22, the first position The second position of the one-two-four-way solenoid valve; 3. The second two-position four-way solenoid valve, 31, the first position of the second two-position four-way solenoid valve, 32, the second two-position four-way solenoid valve 4. Controller, 5. Air compressor driver, 6. Air extractor driver, 7. Air compressor, 8. Air extractor, 9. Flow sensor, 10. Pressure sensor.

Detailed ways

The specific embodiments of the present utility model will be described in further detail below with reference to the accompanying drawings and embodiments. The following examples are used to illustrate the present invention, but are not intended to limit the scope of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work fall within the protection scope of the present invention.

It should be understood that the terms "first", "second", etc. are used to describe various information in the present invention, but the information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, "first" information may also be referred to as "second" information, and similarly, "second" information may also be referred to as "first" information without departing from the scope of the present invention.

As shown in FIG. 1 to FIG. 3 , an anti-decubitus air cushion according to a preferred embodiment of the present invention includes an air cushion body 1 , a first airbag 11 and a second airbag 12 which are alternately distributed above the air cushion body 1 . The first airbag 11 and the second air bag 12 are arranged perpendicular to the upper surface of the air cushion body 1 , the first air bag 11 is connected to the air source through the first air intake pipe, the second air bag 12 is connected to the air source through the second air intake pipe, and the first air bag 11 passes through the air source. The first exhaust duct is connected to the exhaust device, the second airbag 12 is connected to the exhaust device through the second exhaust duct, and the outlet ends of the first intake duct and the first exhaust duct are connected to the first two-position four-way electromagnetic. The valve 22 is connected, the outlet ends of the second intake pipe and the second exhaust pipe are connected with the second two-position four-way solenoid valve 3, the first two-position four-way solenoid valve 22 and the second two-position four-way solenoid valve 3 The outlet end of the air inlet is respectively connected with an intake manifold and an exhaust manifold, the intake manifold is connected with the air source, and the exhaust manifold is connected with the exhaust device. The first intake pipe can be connected to the first station 21 of the first two-position four-way solenoid valve or the first inlet end of the second station 22 of the first two-position four-way solenoid valve, and the first exhaust pipe can be connected to The first station 21 of the first two-position four-way solenoid valve or the second inlet end of the second station 22 of the first two-position four-way solenoid valve is connected, and the first station 21 of the first two-position four-way solenoid valve is connected. The first inlet end of the first two-position four-way solenoid valve is connected to the first outlet end of the first station 21 of the first two-position four-way solenoid valve, and the second inlet end of the first station 21 of the first two-position four-way solenoid valve is connected to the first two-way valve. The second outlet end of the first position 21 of the four-way solenoid valve is not connected, and the first inlet end of the second position 22 of the first two-position four-way solenoid valve is connected to the second port of the first two-position four-way solenoid valve. The first outlet end of the station 22 is not connected, the second inlet end of the second station 22 of the first two-position four-way solenoid valve and the second outlet end of the second station 22 of the first two-position four-way solenoid valve Connected to each other, the first station 21 of the first two-position four-way solenoid valve and the first outlet end of the second station 22 of the first two-position four-way solenoid valve are both connected to the inflation main pipe through an intake branch pipe. The second station 22 of the four-way solenoid valve and the second outlet end of the second station 22 of the first two-position four-way solenoid valve are connected to the exhaust manifold through an exhaust branch pipe, and the second two-position four-way solenoid valve is connected to the exhaust manifold. The first inlet end of the first working position 31 of the valve is connected to the first outlet end of the first working position 31 of the second two-position four-way solenoid valve, and the first working position 31 of the second two-position four-way solenoid valve The second inlet end is not in communication with the second outlet end of the first station 31 of the second two-position, four-way solenoid valve, and the first inlet end of the second station 32 of the second two-position, four-way solenoid valve is connected to the second two-position The first outlet end of the second station 32 of the four-way solenoid valve is not connected, and the second inlet end of the second station 32 of the second two-position, four-way solenoid valve is connected to the second station of the second two-position, four-way solenoid valve. The second outlet end of the position 32 is connected, and the first station 31 of the second two-position four-way solenoid valve and the first outlet end of the second station 32 of the second two-position four-way solenoid valve are connected to each other through an intake branch pipe. The charging manifold is connected, and the second position 32 of the second two-position four-way solenoid valve and the second outlet end of the second position 32 of the second two-position four-way solenoid valve are both connected to the exhaust manifold through an exhaust branch pipe.

Based on the above technical solutions, the first air bag 11 and the second air bag 12 are inflated and deflated at intervals, so that the surface of the air cushion body 1 and the human body fit alternately in waves, changing the pressure on the skin of various parts of the patient, and alternating soft and hard. To the role of manual massage, it not only prevents bedsores but also increases the comfort of patients, effectively reduces the average unit area pressure and lasting time of the skin on the bottom of the body when sleeping, so as to help the blood flow in the user's flesh and blood vessels more unobstructed without having to Relying on turning the body over to remove the blood stasis caused by the compressed blood vessels in the cortex, the pain of hypoxia (which can lead to necrosis of intradermal cells) or the risk of pressure ulcers, especially for long-term bedridden patients, it provides prevention rather than cure It can reduce the pressure of long-term care for patients' families and caregivers, and reduce the work of turning over and wiping. Further, the softness and hardness of the first airbag 11 and the second airbag 12 can be controlled by controlling the volume of the gas filled into the first airbag 11 and the second airbag 12 to meet the needs of the patient. When the inflation volume of the first airbag 11 and the second airbag 12 is 45%-60% of that of the first airbag 11 and the second airbag 12, the airbag and the human body surface fit better. Change the shape to better fit the patient's skin, thereby making the force point between the first airbag 11 and the second airbag 12 and the user large, avoiding the phenomenon of bed sores caused by long-term bed rest. The four-way solenoid valve can use the same set of inflation and exhaust equipment to control the inflation and exhaust of the first airbag 11 and the second airbag 12 , which simplifies the control air circuit and facilitates manipulation and arrangement.

Preferably, the first airbag 11 and the second airbag 12 are cylindrical airbags, the axial direction of the cylindrical airbag is perpendicular to the upper surface of the air cushion body 1 , and the first ends of the first airbag 11 and the second airbag 12 are connected to the air cushion body 1 . Connected, the second ends of the first airbag 11 and the second airbag 12 are in contact with the user.

Preferably, the first airbags 11 and the second airbags 12 are alternately distributed on the air cushion body 1 , the first airbag 11 and the two adjacent second airbags 12 are arranged in a triangle, and the second airbag 12 and the adjacent two second airbags are arranged in a triangle. An air bag 11 is arranged in a triangular shape. Therefore, when the patient uses the airbag, the force on the surface of the skin that the airbag adheres to the patient is better, and the occurrence of bedsores is further avoided.

Among them, the second ends of the first airbag 11 and the second airbag 12 are bullet-shaped, which makes the patient feel better. When the first airbag 11 and the second airbag 12 are inflated and deflated to massage the patient, the massage effect better.

Specifically, the air source is an air compressor 7 , and the exhaust device is an air extractor 8 .

Further, it also includes an air compressor driver 5 and an air extractor driver 6. The air compressor driver 5 and the air extractor driver 6 are both electrically connected to the controller 4, and the air compressor driver 5 is connected to the air compressor 7. The machine driver 6 is connected to the air extractor 8 .

In this embodiment, a flow sensor 9 is provided on the intake manifold, and the flow sensor 9 is electrically connected to the controller 4 . In order not to completely fill the airbag, and to prevent the total volume of the inflated body from being affected by factors such as the air flow velocity error of the air compressor 7, a flow sensor 9 is arranged at the outlet of the air compressor 7. The flow sensor 9 and the controller 4 In connection, the controller 4 can read the detected real-time air flow rate and the accumulated air flow rate of the flow sensor 9 .

Preferably, a pressure sensor 10 is provided on the exhaust manifold, and the pressure sensor 10 is electrically connected to the controller 4 to ensure that the gas in the airbag group is evacuated. If the air in the airbag group is not fully evacuated, the controller 4 cannot accurately calculate the gas flow required to inflate the airbag group to a specific state, such as a half-inflated state, next time.

The working process of the present invention is as follows: when a certain airbag group is connected to the air extractor 8, the controller 4 starts the air extractor driver 6 to discharge the gas in the airbag to the atmosphere, and when the controller 4 detects that the pressure sensor 10 detects the When the pressure value of the airbag is lower than a certain threshold, the controller 4 judges that the gas of this group of airbags is completely emptied, and the controller 4 stops the pumping machine driver 6, thereby stopping the pumping. When a certain air bag group is connected to the air compressor 7, the controller 4 starts the air compressor driver 5, and fills a certain amount of gas into the air bag group. When the total inflation volume in the inflation process reaches a certain threshold, the controller 4 stops the operation of the air compressor driver 5, thereby realizing the stopping of inflation and making the airbag group in a semi-inflated state. Compared with filling the airbag with air in the prior art, the technical solution can make the airbag group in a semi-inflated state, so as to better support the surface of the human body, reduce the local support force, and reduce the maximum pressure obtained on the surface of the human body.

To sum up, the embodiment of the present invention provides an anti-decubitus air cushion, wherein the anti-decubitus air cushion is inflated and deflated through the first air bag 11 and the second air bag 12 at intervals, so that the surface of the air cushion body 1 and the human body fit alternately in waves. , Change the pressure on the skin of various parts of the patient, and alternate soft and hard to play the role of manual massage, not only to prevent bedsores but also to increase the comfort of the patient, effectively reducing the average unit area pressure and lasting time of the skin at the bottom of the body when sleeping, to help use The blood flow in the skin and flesh blood vessels is more unobstructed, and it is not necessary to rely on turning the body to remove the blood stasis caused by the compressed blood vessels in the cortex, the pain of hypoxia (which can lead to necrosis of intradermal cells) or the risk of pressure ulcers, especially For long-term bedridden patients, it provides the effect of prevention rather than treatment, relieves the pressure of long-term care for the patient's family and caregivers, and reduces the work of turning over and wiping. Further, the softness and hardness of the first airbag 11 and the second airbag 12 can be controlled by controlling the volume of the gas filled into the first airbag 11 and the second airbag 12 to meet the needs of the patient. When the inflation volume of the first airbag 11 and the second airbag 12 is 45%-60% of that of the first airbag 11 and the second airbag 12, the airbag and the human body surface fit better. Change the shape to better fit the patient's skin, thereby making the force point between the first airbag 11 and the second airbag 12 and the user large, avoiding the phenomenon of bed sores caused by long-term bed rest. The four-way solenoid valve can use the same set of inflation and exhaust equipment to control the inflation and exhaust of the first airbag 11 and the second airbag 12 , which simplifies the control air circuit and facilitates manipulation and arrangement.

In the description of the present invention, it should be understood that the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right", "top", "bottom", etc. are based on those shown in the accompanying drawings. The orientation or positional relationship is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a reference to the present utility model. limits.

The above are only the preferred embodiments of the present invention. It should be pointed out that for those skilled in the art, without departing from the technical principles of the present invention, several improvements and replacements can be made. These improvements And replacement should also be regarded as the protection scope of the present invention.

Claims (8)

1. The bedsore-proof air cushion is characterized by comprising an air cushion body, a first air bag and a second air bag, wherein the first air bag and the second air bag are connected above the air cushion body and are alternately distributed, the first air bag and the second air bag are perpendicular to the upper surface of the air cushion body, the first air bag is connected with an air source through a first air inlet pipeline, the second air bag is connected with the air source through a second air inlet pipeline, the first air bag is connected with an exhaust device through a first exhaust pipeline, the second air bag is connected with the exhaust device through a second exhaust pipeline, the outlet ends of the first air inlet pipeline and the first exhaust pipeline are connected with a first two-position four-way electromagnetic valve, the outlet ends of the second air inlet pipeline and the second exhaust pipeline are connected with a second two-position four-way electromagnetic valve, the outlet ends of the first two-position four-way electromagnetic valve and the second two-position four-way electromagnetic valve are respectively connected with an air inlet manifold and an exhaust manifold, the air inlet main pipe is connected with the air source, and the air outlet main pipe is connected with the air outlet device.

2. The anti-decubitus cushion according to claim 1, wherein said first and second air cells are cylindrical air cells, the axial direction of said cylindrical air cells is perpendicular to the upper surface of said cushion body, the first ends of said first and second air cells are connected to said cushion body, and the second ends of said first and second air cells are abutted against the user.

3. The bedsore-proof air cushion as claimed in claim 2, wherein the first air cells and the second air cells are alternately distributed on the air cushion body, the first air cells and two adjacent second air cells are arranged in a triangle, and the second air cells and two adjacent first air cells are arranged in a triangle.

4. The anti-decubitus cushion as claimed in claim 2, wherein said second ends of said first and second air cells are bullet-shaped.

5. The anti-decubitus cushion as claimed in claim 1, wherein said air source is an air compressor and said air exhaust means is an air pump.

6. The bedsore-proof air cushion as claimed in claim 5, further comprising an air compressor driver and an air pump driver, wherein both the air compressor driver and the air pump driver are electrically connected with the controller, the air compressor driver is connected with the air compressor, and the air pump driver is connected with the air pump.

7. The anti-decubitus air cushion as claimed in claim 6, wherein a flow sensor is provided on said inlet manifold, said flow sensor being electrically connected to said controller.

8. The anti-decubitus cushion as claimed in claim 7, wherein said exhaust manifold has a pressure sensor thereon, said pressure sensor being electrically connected to said controller.

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