Pressure sore prevention device for nursing in intensive care medicine department

Abstract

The invention relates to the technical field of medical instruments, in particular to a pressure sore prevention device for nursing in the intensive care medicine department, which comprises a bed body, and a driving assembly is arranged on the bed body. The driving assembly comprises a driving part, a plurality of first connecting rods and a plurality of second connecting rods, and a first supporting table and a second supporting table are symmetrically and fixedly connected to the bed body. The sides, away from the driving piece, of the first supporting tables are rotationally matched with first rotating plates, and the sides, away from the first supporting tables, of the first rotating plates are provided with second rotating plates. Output shafts at the two ends of the driving part penetrate through the adjacent first supporting tables correspondingly and are fixedly connected with the adjacent first rotating plates. The second connecting rods are hinged to the first connecting rods adjacent to the second connecting rods. The first connecting rod is driven to rotate through the driving piece, then the first extrusion plate is pushed to move, the change of air in the air bag is controlled through the controller, the situation that pressure borne by key parts of the body of a patient is too large is reduced, and therefore pressure sores of the patient are reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an anti-pressure sore device for critical care nursing. Background Art

[0002] When patients rest in bed for extended periods, the vertical pressure on parts of their bodies exceeds the normal tolerance of their capillaries, leading to impaired blood circulation and tissue ischemia and hypoxia. Furthermore, friction and shear forces further exacerbate vascular compression and accelerate tissue necrosis, resulting in pressure ulcers. The S01 pressure-ulcer-resistant air mattress, currently developed by Medster Medical Device Technology Co., Ltd., utilizes the rhythmic inflation and deflation of air strips to provide regular support to the patient's body, thereby reducing the occurrence of pressure ulcers.

[0003] During use, the above-mentioned device only supports the patient's body by regularly inflating and deflating the air bar, but there is no targeted decompression method for areas prone to pressure sores. Although it can reduce the occurrence of pressure sores to a certain extent, the pressure relief for key pressure areas is not significant, resulting in the continued high incidence of pressure sores.

[0004] In summary, addressing the issue of pressure ulcer prevention air mattresses failing to significantly relieve pressure on key pressure areas of the patient's body, leading to the continued development of pressure ulcers, has become a pressing technical challenge for those skilled in the art. Therefore, it is necessary to propose a pressure ulcer prevention device for critical care nursing. Summary of the Invention

[0005] In order to solve the above problems, the present invention provides an anti-pressure sore device for critical care nursing. The first connecting rod is driven to rotate by a driving member, and then the first extrusion plate is pushed to move, so that the gas in the first piston cylinder can enter the airbag to support the patient's body. The change of the gas in the airbag is controlled by a controller to reduce the excessive pressure on key parts of the patient's body, thereby reducing the occurrence of pressure sores in the patient.

[0006] In order to achieve the above-mentioned objectives, the technical solution of the present invention is as follows: A pressure sore prevention device for critical care nursing comprises a bed body, on which is provided a load-bearing component for supporting the patient's body, an adjustment component for inflating and adjusting the load-bearing component, a driving component for driving the adjustment component to operate, a massage component for massaging the patient's arms, a heat dissipation component for dissipating heat from the patient's body, and a cleaning component for cleaning the bed body.

[0007] The load-bearing assembly is equipped with a pressure monitoring assembly for monitoring pressure changes and a data acquisition assembly for monitoring temperature changes. The drive assembly includes a driver, a controller, and a plurality of first and second connecting rods. The controller is used to control the operation of the driver. The bed is symmetrically fixedly connected to a first and second support platform. The driver is located between adjacent first support platforms and is fixedly connected to any one of the first support platforms.

[0008] The first support platform is rotatably coupled to the side away from the driver, and a second rotatable plate is provided on the side away from the first support platform. The second support platform is provided with a third and fourth rotatable plates on the side closer to the first support platform, and the fourth rotatable plates are rotatably coupled to the adjacent second support platform. The output shafts at both ends of the driver extend through the adjacent first support platform and are fixedly connected to the adjacent first rotatable plates. The second connecting rods are hingedly connected to the adjacent first connecting rods. The first connecting rods are in contact with the adjustment assembly, and the second connecting rods are in contact with the cleaning assembly.

[0009] The technical principle of the above solution is as follows: the operation of the driving member drives the rotation of the first rotating plate, which in turn drives the rotation of the second rotating plate through the first connecting rod. At this time, the first connecting rod continuously rotates with the first rotating plate. The first connecting rod is hinged with the second connecting rod, driving the second connecting rod to rotate synchronously. The rotation of the second connecting rod drives the third and fourth rotating plates to rotate synchronously. When the first connecting rod rotates, it continuously pushes the adjustment assembly to move, thereby filling the load-bearing assembly with gas through the adjustment assembly, providing intermittent support to the patient's pressure area and reducing the occurrence of pressure ulcers.

[0010] The pressure monitoring and data collection components collect pressure and temperature information from patients in bed, facilitating targeted adjustments to the load-bearing components. The massage component massages the patient's arms, improving blood flow and reducing stiffness. After the patient finishes using the device, the cleaning component thoroughly cleans the load-bearing components, minimizing cross-infection during subsequent use. The heat dissipation component dissipates heat from higher-temperature areas on the patient's body, further reducing the risk of pressure ulcers.

[0011] The above scheme has the following beneficial effects:

[0012] 1. This invention creates a dynamic, wave-like support effect through intermittent inflation of the load-bearing component. Combined with real-time pressure data from the pressure monitoring component, it accurately identifies high-pressure areas and adjusts the inflation volume accordingly. This cyclical change not only prevents prolonged localized tissue compression but also improves blood perfusion in the compressed area by promoting microcirculation in the subcutaneous capillaries.

[0013] 2. The present invention can dissipate heat from the patient's pressure area through the heat dissipation component, keeping the skin contact surface in a low-temperature and low-humidity state. This lowers the patient's body surface temperature at the pressure area, reduces the skin's tolerance to humidity and heat, and thus reduces the occurrence of pressure sores.

[0014] 3. The present invention drives the rotation of the first connecting rod through the operation of the driving member, and synchronously transmits the torque to the second connecting rod through the hinge structure between the first connecting rod and the second connecting rod, forming a reciprocating motion with two degrees of freedom, so that the adjustment component can continuously fill gas into the load-bearing component, ensuring the stability of the load-bearing component during the process of adjusting the inflation amount.

[0015] Furthermore, the first connecting rods pass through the first and second rotating plates adjacent thereto and are in sliding engagement with the first and second rotating plates. The second connecting rods pass through the third and fourth rotating plates adjacent thereto and are in sliding engagement with the third and fourth rotating plates.

[0016] The adjustment assembly includes a plurality of first piston cylinders, each of which is fixedly connected to an adjacent first support platform. The first piston cylinder is provided with an air inlet and an air outlet, each of which is connected to a one-way valve. The air outlet is connected to a gas pipeline, and the end of the gas pipeline away from the air outlet is connected to a temporary storage assembly. A first piston head is slidably fitted in the first piston cylinder, and a first push rod is fixedly connected to the end of the first piston head away from the air inlet, and a first extrusion plate is fixedly connected to the end of the first push rod away from the first piston head. A first spring is fixedly connected in the first piston cylinder, and one end of the first spring is fixedly connected to the inner bottom wall of the first piston cylinder, and the other end of the first spring is fixedly connected to the first piston head. The first connecting rod is in contact with the adjacent first extrusion plate.

[0017] Beneficial effect: Through the continuous rotation of the first connecting rod, it continuously contacts the first extrusion plate, and the contact force is used to push the first extrusion plate to move continuously. The elastic force of the first spring enables the first piston head to return to its original position in time, thereby ensuring the efficiency of inflating the temporary storage component.

[0018] Furthermore, the temporary storage component includes a temporary storage box, which is fixedly connected to the bed, and the gas pipelines are connected to the temporary storage box. The temporary storage box has a gas outlet, which is connected to a delivery pipeline, and the end of the delivery pipeline away from the gas outlet is connected to the load-bearing component.

[0019] Beneficial effect: The bearing assembly is inflated with gas through the temporary storage assembly, and the gas is stored by the temporary storage assembly, which ensures a stable supply of gas during gas transmission and reduces the instability of the bearing assembly caused by insufficient gas.

[0020] Furthermore, the supporting assembly includes several airbags, which are fixedly connected to the bed body. The airbags are provided with inflation ports and deflation ports. The inflation ports and deflation ports are fixedly connected to the first solenoid valves. The controller is used to control the opening and closing of the first solenoid valves. The inflation ports are connected to the delivery pipes.

[0021] Beneficial effects: The patient's body is supported by airbags, and several airbags divide the patient's body into different areas. The air volume of the airbags is adjusted according to the pressure changes in different areas of the patient's body, thereby reducing the situation where the local area of ​​the patient is under excessive pressure and reducing the occurrence of pressure sores in the patient.

[0022] Furthermore, the pressure monitoring assembly includes several pressure sensors, each fixedly connected to the surface of the airbag. A controller is configured to receive pressure data monitored by the pressure sensors. When the controller determines, via the pressure sensors, that the pressure at a specific location on the patient is greater than 4.3 kPa, it controls the intermittent opening and closing of a first solenoid valve within the inflation and deflation ports of the airbag at that location, thereby continuously inflating and deflating the airbag at that location.

[0023] Beneficial Effects: The pressure applied to different parts of the patient's body is monitored via pressure sensors, which are directly attached to the surface of the airbags, capturing real-time pressure distribution data on the patient's body surface. When the pressure at a specific location exceeds 4.3kPa, the controller quickly identifies the data and initiates a regulation program. By controlling the intermittent opening and closing of the first solenoid valve within the airbag's inflation and deflation ports, the corresponding airbag completes its inflation and deflation cycle. When the airbag is deflated, the pressure exerted on the patient by the surrounding airbags increases, thereby reducing the pressure on the patient in that location. When the airbag is inflated, it re-supports that part of the patient's body. This intermittent support reduces the incidence of pressure ulcers in patients.

[0024] Furthermore, the data collection component includes several temperature sensors, each of which is fixedly connected to the surface of the airbag. The controller is used to receive temperature data monitored by the temperature sensors. The controller uses the temperature sensors to determine temperature changes in the patient's body parts. When the temperature of a certain part of the patient's body exceeds 38°C, the controller controls the heat dissipation component to dissipate heat.

[0025] Beneficial effects: The temperature sensor is directly attached to the surface of the airbag and can capture the changes in the patient's body surface temperature in real time. When the temperature of a local part of the patient's body exceeds 38°C, the controller controls the heat dissipation component to dissipate heat, thereby lowering the temperature of the patient's part, improving the patient's body surface environment, and reducing the probability of pressure sores.

[0026] Furthermore, the cleaning assembly includes a plurality of second piston cylinders, each of which is fixedly connected to the second support platform adjacent thereto. A liquid inlet and a liquid outlet are provided on the second piston cylinders, and a second solenoid valve is fixedly connected to the liquid inlet and the liquid outlet. A controller is used to control the opening and closing of the second solenoid valve. The liquid inlet is connected to a storage box, which is fixedly connected to the bed, and the liquid outlet is fixedly connected to a spray head. A second piston head is slidably fitted in the second piston cylinder, and a second push rod is fixedly connected to the end of the second piston head away from the liquid inlet, and a second extrusion plate is fixedly connected to the end of the second push rod away from the second piston head. A second spring is fixedly connected in the second piston cylinder, and one end of the second spring is fixedly connected to the inner bottom wall of the second piston cylinder, and the other end of the second spring is fixedly connected to the second piston head. The second connecting rod is in contact with the second extrusion plate adjacent thereto.

[0027] Beneficial Effect: The second piston cylinder, driven by the second connecting rod, reciprocates within the cylinder, pressurizing the cleaning fluid in the storage tank and delivering it to the spray head. This ensures that the cleaning fluid is evenly sprayed onto the bed surface at a certain pressure and flow rate, reducing the risk of cross-infection when used by different patients.

[0028] Furthermore, the massage assembly includes a plurality of massage rods, each of which passes through the second support platform adjacent thereto and is fixedly connected to the fourth rotating disk adjacent thereto. Massage balls are fixedly connected to the massage rods in a circumferential direction.

[0029] Beneficial Effects: The massage ball provides a circular massage on the patient's arm, covering areas prone to stiffness, such as the forearm and upper arm. When the fourth rotating plate rotates the massage rod, the massage ball alternates contact with the skin, generating high-frequency, low-amplitude vibration stimulation that effectively maintains the longitudinal extensibility of muscle fibers and prevents myometrial shortening caused by prolonged immobilization.

[0030] Furthermore, the heat dissipation assembly includes a plurality of heat dissipation tubes, each of which has a plurality of air holes. The heat dissipation tubes are fixedly connected to the bed and are located between adjacent air bags. The heat dissipation tubes are connected to the end of the delivery pipe away from the air delivery port. The connection point between the heat dissipation tube and the delivery pipe is fixedly connected to a third solenoid valve, and the controller is used to control the opening and closing of the third solenoid valve.

[0031] Beneficial Effects: Heat dissipation pipes are embedded in the gaps between adjacent airbags, forming a precise heat dissipation network targeted at areas prone to pressure sores. When the temperature sensor detects that a certain area of ​​the patient's body temperature is higher than other areas, the controller activates the third solenoid valve to activate the delivery pipeline to supply air to the heat dissipation pipe at that location.

[0032] Furthermore, a flexible layer is fixedly connected to the top of the airbag.

[0033] Beneficial effect: The flexible layer reduces the patient's direct contact with the airbag, thereby improving the patient's comfort when lying in bed.

[0034] Additional aspects and advantages of the present invention will be set forth in part in the description which follows and, in part, will be obvious from the description which follows, or may be learned by practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 The present invention is an axonometric diagram of an anti-pressure sore device for critical care nursing.

[0036] Figure 2 for Figure 1 A partial enlarged view of part A.

[0037] Figure 3 The present invention is a top view of an anti-pressure sore device used in critical care nursing.

[0038] Figure 4 The present invention is a cross-sectional view of a first piston cylinder in an anti-pressure sore device for critical care nursing.

[0039] Figure 5 The present invention is a cross-sectional view of a second piston cylinder in an anti-pressure sore device for critical care nursing.

[0040] The figure marks in the drawings of the specification include: 1. bed; 2. airbag; 3. temperature sensor; 4. pressure sensor; 5. massage ball; 6. massage rod; 7. second piston cylinder; 8. second push rod; 9. second extrusion plate; 10. fourth rotating plate; 11. second connecting rod; 12. third rotating plate; 13. first connecting rod; 14. second rotating plate; 15. first rotating plate; 16. first support platform; 17. first piston cylinder; 18. temporary storage box; 19. first push rod; 20. first extrusion plate; 21. second support platform; 22. heat dissipation pipe; 23. double-headed motor; 24. first piston head; 25. first spring; 26. second spring; 27. second piston head. DETAILED DESCRIPTION

[0041] The following is further described in detail through specific implementation methods:

[0042] Example 1:

[0043] As attached Figure 1 The figure shows a pressure sore prevention device for critical care nursing, comprising a bed 1 equipped with a bearing assembly for supporting the patient, an adjustment assembly for adjusting the inflation of the bearing assembly, a drive assembly for driving the adjustment assembly, a massage assembly for massaging the patient's arms, a heat dissipation assembly for dissipating heat from the patient's body, and a cleaning assembly for cleaning the bed 1. The bearing assembly is equipped with a pressure monitoring assembly for monitoring pressure changes and a data acquisition assembly for monitoring temperature changes.

[0044] Specific, combined Figure 2 As shown, the driving assembly includes a driving member, a controller, several first connecting rods 13 and a second connecting rod 11. In this embodiment, the driving member is selected as a double-headed motor 23. The controller is used to control the operation of the double-headed motor 23. The first support platform 16 and the second support platform 21 are symmetrically bolted on the bed body 1. The double-headed motor 23 is located between adjacent first support platforms 16 and is bolted to any one of the first support platforms 16.

[0045] The first support platform 16 is rotatably coupled to the side away from the double-headed motor 23 with a first rotating plate 15. The first rotating plate 15 is provided with a second rotating plate 14 on the side away from the first support platform 16. The second support platform 21 is provided with a third rotating plate 12 and a fourth rotating plate 10 on the side close to the first support platform 16. The fourth rotating plate 10 is rotatably coupled to the adjacent second support platform 21.

[0046] The output shafts at both ends of the double-headed motor 23 respectively pass through the adjacent first support platform 16 and are fixedly connected with the adjacent first rotating plate 15 with bolts.

[0047] Each first connecting rod 13 extends through the adjacent first and second rotating plates 15, 14, and slides with them. Each second connecting rod 11 extends through the adjacent third and fourth rotating plates 12, 10, and slides with them. Each second connecting rod 11 is hingedly connected to the adjacent first connecting rod 13. Each first connecting rod 13 contacts the adjustment assembly, and each second connecting rod 11 contacts the cleaning assembly.

[0048] When the double-headed motor 23 is running, the output shaft of the double-headed motor 23 will drive the first rotating plate 15 to rotate. When the first rotating plate 15 rotates, the first rotating plate 15 will drive the first connecting rod 13 to rotate. Since the first connecting rod 13 passes through the first rotating plate 15 and the second rotating plate 14 adjacent to it, and slides with the first rotating plate 15 and the second rotating plate 14, the rotation of the first connecting rod 13 will drive the second rotating plate 14 to rotate. As the first connecting rod 13 rotates, since the first connecting rod 13 is hinged with the second connecting rod 11, the rotation of the first connecting rod 13 will also synchronously drive the second connecting rod 11 to rotate. When the second connecting rod 11 rotates, since the second connecting rod 11 passes through the third rotating plate 12 and the fourth rotating plate 10 adjacent to it, and slides with the third rotating plate 12 and the fourth rotating plate 10, the rotation of the second connecting rod 11 will drive the third rotating plate 12 and the fourth rotating plate 10 to rotate synchronously.

[0049] As the first rotating plate 15, the second rotating plate 14, the third rotating plate 12 and the fourth rotating plate 10 rotate, the first connecting rod 13 and the second connecting rod 11 will slide back and forth. At this time, through the reciprocating sliding of the first connecting rod 13, the first connecting rod 13 will continuously contact the adjustment component, and through the reciprocating sliding of the second connecting rod 11, the second connecting rod 11 will continuously contact the cleaning component.

[0050] Specific, combined Figure 4 As shown, the adjustment assembly includes several first piston cylinders 17, which are all bolted to the first support platform 16 adjacent to them. The first piston cylinders 17 are provided with an air inlet and an air outlet, and the air inlet and the air outlet are both connected to a one-way valve. The air outlet is connected to a gas pipeline, and the end of the gas pipeline away from the air outlet is connected to a temporary storage assembly.

[0051] A first piston head 24 is slidably fitted within each first piston cylinder 17. The end of the first piston head 24, away from the air inlet, is screw-fixedly connected to the first push rod 19. The end of the first push rod 19, away from the first piston head 24, is screw-fixedly connected to the first extrusion plate 20. A first spring 25 is screw-fixedly connected within each first piston cylinder 17. One end of each first spring 25 is screw-fixedly connected to the inner bottom wall of the first piston cylinder 17, and the other end of each first spring 25 is screw-fixedly connected to the first piston head 24. Each first connecting rod 13 is in contact with the first extrusion plate 20 adjacent to it.

[0052] As the first connecting rod 13 slides back and forth, the first connecting rod 13 will continue to contact the first extrusion plate 20. At this time, the first extrusion plate 20 will move under the pushing action of the first connecting rod 13. The movement of the first extrusion plate 20 will drive the first push rod 19 to move, and then drive the first piston head 24 to slide in the first piston cylinder 17. When the first piston head 24 slides to the bottom end of the first piston cylinder 17, the first spring 25 is compressed. When the first connecting rod 13 stops contacting the first extrusion plate 20, the first spring 25 will restore the first piston head 24 to its original position under the action of elastic force.

[0053] As the first piston head 24 slides in the first piston cylinder 17, outside air enters the first piston cylinder 17 through the one-way valve of the air inlet, and then enters the temporary storage component through the one-way valve of the air outlet, and the temporary storage component stores the gas.

[0054] Specifically, such as Figure 1 and Figure 3 As shown, the temporary storage assembly includes a temporary storage box 18, which is fixedly connected to the bed 1 with bolts, and the gas pipelines are connected to the temporary storage box 18. The temporary storage box 18 is provided with a gas outlet, which is connected to a delivery pipeline, and the end of the delivery pipeline away from the gas outlet is connected to the load-bearing assembly.

[0055] The bearing assembly includes several airbags 2, which are fixedly connected to the bed body 1 by bolts. The airbags 2 are provided with inflation ports and deflation ports. The inflation ports and deflation ports are fixedly connected with first solenoid valves by screws. The controller is used to control the opening and closing of the first solenoid valves. The inflation ports are connected to the delivery pipeline.

[0056] When the temporary storage box 18 is filled with gas, the medical staff can use the controller to control the first solenoid valve of the inflation port in the airbag 2 to open and the first solenoid valve of the air outlet to close. At this time, the gas in the temporary storage box 18 can enter the airbag 2 through the inflation port to support the patient's body.

[0057] Specifically, the pressure monitoring assembly includes several pressure sensors 4, each of which is screwed to the surface of the airbag 2. The controller is used to receive pressure data monitored by the pressure sensors 4. When the controller determines through the pressure sensors 4 that the pressure at a certain location on the patient is greater than 4.3 kPa, it controls the intermittent opening and closing of the first solenoid valve in the inflation and deflation ports of the airbag 2 at that location, thereby continuously inflating and deflating the airbag 2 at that location.

[0058] The pressure monitoring component monitors the pressure on the patient's body. When the pressure on a certain part of the patient's body exceeds 4.3 kPa, the controller determines that the pressure in that part is high and controls the intermittent opening and closing of the first solenoid valves in the inflation and deflation ports of the airbag 2 in that part. When the first solenoid valve in the deflation port opens and the first solenoid valve in the inflation port closes, the gas in the airbag 2 is released, the air pressure decreases, and the support force of the airbag 2 on that part of the patient is reduced, thereby reducing the pressure on that part of the patient. At this time, the air pressure in the airbag 2 surrounding the patient remains unchanged, providing support for the surrounding area. When the first solenoid valve in the deflation port closes and the first solenoid valve in the inflation port opens, the gas in the airbag 2 increases, the air pressure increases, and the support force of the airbag 2 on that part of the patient is increased. By adjusting the air supply frequency of the airbag 2 in that part of the patient, the pressure burden on that part of the patient is reduced, thereby reducing the risk of pressure sores.

[0059] When the pressure sensor 4 monitors the pressure on the patient's body, the pressure sensor 4 only monitors the pressure value when the airbag 2 is not inflated or deflated, thereby reducing the impact of the continuous inflation and deflation of the airbag 2 on the pressure data monitored by the pressure sensor 4.

[0060] Specifically, the acquisition component includes a plurality of temperature sensors 3 , which are all fixedly connected to the surface of the airbag 2 by screws, and the controller is used to receive the temperature data monitored by the temperature sensors 3 .

[0061] The controller determines the temperature change of the patient's body part through the temperature sensor 3. When the temperature of a certain part of the patient's body is higher than 38°C, the controller controls the heat dissipation component to dissipate heat.

[0062] Temperature sensor 3 monitors temperature changes in various areas of the patient's body, facilitating zone-specific cooling. Before a patient develops a pressure sore, their body temperature will rise significantly, and prolonged exposure to high temperature and high humidity conditions can increase the risk of developing a pressure sore. When temperature sensor 3 detects a temperature above 38°C in a particular area of ​​the patient's body, the controller determines that area is at risk of developing a pressure sore and subsequently dissipates heat from the patient through the heat dissipation component, thereby reducing the risk of developing a pressure sore.

[0063] Specific, combined Figure 3 As shown, the heat dissipation assembly includes a plurality of heat dissipation tubes 22, each of which has a plurality of air holes. The heat dissipation tubes 22 are all fixedly connected to the bed 1 by bolts and are all located between adjacent air bags 2. The heat dissipation tubes 22 are all connected to the end of the delivery pipe away from the air delivery port. The connection point between the heat dissipation tube 22 and the delivery pipe is fixedly connected with a third solenoid valve by screws, and the controller is used to control the opening and closing of the third solenoid valve.

[0064] When the controller determines that a certain part of the patient needs to dissipate heat, the controller can control the third solenoid valve of the heat dissipation pipe 22 at that position to open. At this time, the gas in the temporary storage box 18 will enter the heat dissipation pipe 22 through the delivery pipe and be ejected through the air holes, thereby reducing the patient's body surface temperature.

[0065] The specific implementation process is as follows: Figure 1 and Figure 2 For example, first, the medical staff can make the patient lie flat on the bed 1, and then control the double-headed motor 23 to start through the controller, thereby driving the first rotating plate 15 to rotate, and the rotation of the first rotating plate 15 drives the first connecting rod 13 to rotate, and then drives the second rotating plate 14, the second connecting rod 11, the third rotating plate 12 and the fourth rotating plate 10 to rotate.

[0066] Combine Figure 4 As shown, through the contact between the first connecting rod 13 and the first extrusion plate 20, the first piston cylinder 17 continuously squeezes the external air into the temporary storage box 18, and then inflates the airbag 2 through the temporary storage box 18, so that the airbag 2 supports the patient's body.

[0067] Combine Figure 2As shown, the pressure sensor 4 and the temperature sensor 3 continuously monitor the changes in pressure and temperature of the patient's body. When the controller detects through the pressure sensor 4 that the pressure on the patient's body is 2.4kPa-4.3kPa, the pressure on the patient's body is normal and no pressure sores will occur. When the controller detects through the pressure sensor 4 that the pressure on a certain part of the patient exceeds 4.3kPa, the controller will automatically adjust the changes in the air pressure in the airbag 2 at that part. By adjusting the frequency of inflation and deflation of the airbag 2, the pressure point is periodically changed to promote blood flow. By periodically changing the pressure point, blood circulation can also be promoted, so that the pressure can be evenly distributed, avoiding continuous pressure on the part.

[0068] When the temperature sensor 3 detects that the patient's body temperature is between 36°C and 38°C, the patient's body temperature is appropriate and there is no need for active heat dissipation and ventilation through the heat dissipation pipe 22. When the controller detects through the temperature sensor 3 that the temperature of a certain part of the patient is higher than 38°C, it means that the location has been non-ventilated for a long time, causing the temperature to rise. The temperature rise caused by long-term non-ventilation may be accompanied by an increase in humidity, forming a humid and hot environment, accelerating skin softening, and increasing the risk of pressure sores. At this time, the controller will automatically control the third solenoid valve in the heat dissipation pipe 22 at this location to open, and then deliver gas to the heat dissipation pipe 22 through the delivery pipe of the temporary storage box 18 to dissipate heat and cool the patient, thereby reducing the occurrence of pressure sores in the patient.

[0069] The present invention uses pressure sensor 4 to monitor body pressure distribution in real time. Combined with the controller's precise inflation and deflation control of airbag 2, this produces cyclical pressure fluctuations. This cyclical pressure variation simulates the body's natural muscle pumping effect, promoting venous return and blocking the ischemia-reperfusion injury pathway that leads to pressure ulcer formation. The temperature sensor 3 and heat pipe 22 form a dual protection mechanism, mitigating the vicious cycle of skin softening caused by high heat and humidity, which can lead to pressure ulcer formation.

[0070] Example 2:

[0071] like Figure 1 and Figure 5 As shown, the difference from the above embodiment is that the cleaning assembly includes a plurality of second piston cylinders 7, and the second piston cylinders 7 are fixedly connected to the second support platform 21 adjacent thereto by bolts.

[0072] The second piston cylinder 7 is provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are fixedly connected with a second solenoid valve by screws. The controller is used to control the opening and closing of the second solenoid valve. The liquid inlet is connected to a storage box, and the storage box is fixedly connected to the bed 1 with bolts, and the liquid outlet is fixedly connected with a spray head by screws.

[0073] A second piston head 27 is slidably fitted in the second piston cylinder 7 , and one end of the second piston head 27 away from the liquid inlet is fixedly connected to the second push rod 8 with screws, and the other end of the second push rod 8 away from the second piston head 27 is fixedly connected to the second extrusion plate 9 with screws.

[0074] A second spring 26 is screw-fixedly connected inside the second piston cylinder 7 , one end of the second spring 26 is screw-fixedly connected to the inner bottom wall of the second piston cylinder 7 , and the other end of the second spring 26 is screw-fixedly connected to the second piston head 27 .

[0075] The second connecting rods 11 are all in contact with the second extrusion plates 9 adjacent thereto.

[0076] The specific implementation process is as follows: When the second connecting rod 11 rotates and contacts the second extrusion plate 9, the second connecting rod 11 pushes the second extrusion plate 9 to slide, which in turn drives the second push rod 8 to slide, thereby driving the second piston head 27 to slide within the second piston cylinder 7. At this time, the second spring 26 is compressed and stores energy. When the second connecting rod 11 stops contacting the second extrusion plate 9, the second spring 26 returns to its original position under the action of its elastic force, causing the second piston head 27 to return to its original position.

[0077] Cleaning liquid is stored in the storage box. When the patient has finished using it, the staff can use the controller to control the second solenoid valve in the liquid inlet to open. At this time, as the second piston head 27 slides, the cleaning liquid in the storage box can enter the second piston cylinder 7 through the liquid inlet. Then the controller controls the second solenoid valve in the liquid outlet to open. At this time, as the second piston head 27 slides, the cleaning liquid in the second piston cylinder 7 can enter the spray head through the liquid outlet to spray the bed 1, thereby achieving the effect of cleaning the bed 1 and reducing cross infection when different patients use the device.

[0078] Example 3:

[0079] like Figure 1 As shown, the difference from the above embodiment is that the massage assembly includes a plurality of massage rods 6, and the massage rods 6 all pass through the adjacent second support platform 21 and are fixedly connected with the adjacent fourth rotating plate 10 by bolts.

[0080] The massage rods 6 are all fixedly connected with massage balls 5 by circumferential screws.

[0081] The specific implementation process is as follows: as the fourth rotating plate 10 rotates, the fourth rotating plate 10 will synchronously drive the massage rod 6 to rotate, and then drive the massage ball 5 to fully massage the patient's arm. By massaging the patient's arm, the patient's arm capillaries are promoted to expand, blood microcirculation is improved, and the stiffness of the patient's arm is reduced, thereby improving the patient's comfort.

[0082] Example 4:

[0083] The difference from the above embodiment is that a flexible layer is bonded to the top of the airbag 2 , and in this embodiment the flexible layer is a sponge layer.

[0084] The specific implementation process is as follows: The multiple holes in the sponge layer can significantly increase the air flow rate, accelerate the exchange of moisture and heat with the patient's body surface, and improve patient comfort. The sponge layer can also provide flexible support to enhance the patient's lying experience.

[0085] Obviously, the above embodiments are merely examples for clarity of explanation and are not intended to limit the implementation methods. Those skilled in the art will readily appreciate that other variations or modifications based on the above descriptions are possible. It is not necessary and impossible to enumerate all implementation methods here. Obvious variations or modifications arising therefrom remain within the scope of protection of the present invention.

Claims

1. A device for preventing pressure sores in critical care nursing, comprising a bed (1), characterized in that: The bed body (1) is provided with a bearing assembly for bearing the patient's body, an adjustment assembly for adjusting the inflation of the bearing assembly, a driving assembly for driving the adjustment assembly to operate, a massage assembly for massaging the patient's arms, a heat dissipation assembly for dissipating heat from the patient's body, and a cleaning assembly for cleaning the bed body (1); The bearing assembly is provided with a pressure monitoring assembly for monitoring pressure changes and a collection assembly for monitoring temperature changes; The driving assembly includes a driving member, a controller, a plurality of first connecting rods (13) and a second connecting rod (11); the controller is used to control the operation of the driving member; a first support platform (16) and a second support platform (21) are symmetrically fixedly connected to the bed body (1); the driving member is located between adjacent first support platforms (16) and is fixedly connected to any one of the first support platforms (16); The first support platform (16) is rotatably matched with a first rotating plate (15) on one side away from the driving member, and the first rotating plate (15) is provided with a second rotating plate (14) on one side away from the first support platform (16); A third rotating plate (12) and a fourth rotating plate (10) are provided on one side of the second supporting platform (21) close to the first supporting platform (16), and the fourth rotating plate (10) is rotatably matched with the second supporting platform (21) adjacent thereto; The output shafts at both ends of the driving member respectively penetrate the first supporting platform (16) adjacent thereto and are fixedly connected to the first rotating plate (15) adjacent thereto; The second connecting rods (11) are hinged to the first connecting rods (13) adjacent thereto; the first connecting rods (13) are in contact with the adjustment assembly, and the second connecting rods (11) are in contact with the cleaning assembly.

2. The pressure sore prevention device for critical care nursing according to claim 1, characterized in that: The first connecting rods (13) penetrate the first rotating plate (15) and the second rotating plate (14) adjacent thereto, and are slidably fitted with the first rotating plate (15) and the second rotating plate (14); The second connecting rods (11) pass through the third rotating plate (12) and the fourth rotating plate (10) adjacent thereto, and are in sliding engagement with the third rotating plate (12) and the fourth rotating plate (10); The adjustment assembly includes a plurality of first piston cylinders (17), each of which is fixedly connected to a first support platform (16) adjacent thereto. The first piston cylinders (17) are provided with an air inlet and an air outlet, each of which is connected to a one-way valve, and each of the air outlets is connected to an air pipeline, and each end of the air pipeline away from the air outlet is connected to a temporary storage assembly. A first piston head (24) is slidably fitted in the first piston cylinder (17), an end of the first piston head (24) away from the air inlet is fixedly connected to a first push rod (19), and an end of the first push rod (19) away from the first piston head (24) is fixedly connected to a first extrusion plate (20); A first spring (25) is fixedly connected inside the first piston cylinder (17), one end of the first spring (25) is fixedly connected to the inner bottom wall of the first piston cylinder (17), and the other end of the first spring (25) is fixedly connected to the first piston head (24); The first connecting rods (13) are in contact with the first extrusion plates (20) adjacent thereto.

3. The pressure sore prevention device for critical care nursing according to claim 2, characterized in that: The temporary storage component includes a temporary storage box (18), which is fixedly connected to the bed (1), and the gas pipelines are connected to the temporary storage box (18). The temporary storage box (18) is provided with a gas outlet, which is connected to a delivery pipeline, and the end of the delivery pipeline away from the gas outlet is connected to the bearing component.

4. The pressure sore prevention device for critical care nursing according to claim 3, characterized in that: The bearing assembly includes a plurality of air bags (2), each of which is fixedly connected to the bed body (1), and each of which is provided with an inflation port and an deflation port. A first electromagnetic valve is fixedly connected to each of the inflation port and the deflation port. A controller is used to control the opening and closing of the first electromagnetic valve, and each of the inflation ports is connected to a delivery pipeline.

5. The pressure sore prevention device for critical care nursing according to claim 4, characterized in that: The pressure monitoring component includes a plurality of pressure sensors (4), each of the pressure sensors (4) is fixedly connected to the surface of the airbag (2), and the controller is used to receive pressure data monitored by the pressure sensors (4); When the controller determines through the pressure sensor (4) that the pressure on a certain position of the patient is greater than 4.3 kPa, the controller controls the intermittent opening and closing of the first electromagnetic valve in the inflation port and the deflation port of the airbag (2) at the position, thereby causing the airbag (2) at the position to be continuously inflated and deflated.

6. The pressure sore prevention device for critical care nursing according to claim 5, characterized in that: The acquisition component includes a plurality of temperature sensors (3), each of which is fixedly connected to the surface of the airbag (2), and the controller is used to receive temperature data monitored by the temperature sensors (3); The controller determines the temperature change of the patient's body part through the temperature sensor (3). When the temperature of a certain part of the patient's body is higher than 38° C., the controller controls the heat dissipation component to dissipate heat.

7. The pressure sore prevention device for critical care nursing according to claim 6, characterized in that: The cleaning assembly includes a plurality of second piston cylinders (7), each of which is fixedly connected to a second support platform (21) adjacent thereto; The second piston cylinder (7) is provided with a liquid inlet and a liquid outlet, and the liquid inlet and the liquid outlet are fixedly connected to a second solenoid valve, and a controller is used to control the opening and closing of the second solenoid valve. The liquid inlet is connected to a storage box, and the storage box is fixedly connected to the bed (1), and the liquid outlet is fixedly connected to a spray head; A second piston head (27) is slidably fitted in the second piston cylinder (7), one end of the second piston head (27) away from the liquid inlet is fixedly connected to a second push rod (8), and one end of the second push rod (8) away from the second piston head (27) is fixedly connected to a second extrusion plate (9); A second spring (26) is fixedly connected inside the second piston cylinder (7), one end of the second spring (26) is fixedly connected to the inner bottom wall of the second piston cylinder (7), and the other end of the second spring (26) is fixedly connected to the second piston head (27); The second connecting rods (11) are in contact with the second extrusion plates (9) adjacent thereto.

8. The pressure sore prevention device for critical care nursing according to claim 7, characterized in that: The massage assembly includes a plurality of massage rods (6), each of which penetrates the second support platform (21) adjacent thereto and is fixedly connected to the fourth rotating plate (10) adjacent thereto; The massage rods (6) are all circumferentially fixedly connected with massage balls (5).

9. The pressure sore prevention device for critical care nursing according to claim 8, characterized in that: The heat dissipation assembly includes a plurality of heat dissipation pipes (22), a plurality of air holes are opened on the heat dissipation pipes (22), the heat dissipation pipes (22) are fixedly connected to the bed body (1), and are located between adjacent air bags (2), the heat dissipation pipes (22) are connected to the end of the delivery pipe away from the air delivery port, and the connection point between the heat dissipation pipes (22) and the delivery pipe is fixedly connected to a third solenoid valve, and the controller is used to control the opening and closing of the third solenoid valve.

10. The pressure sore prevention device for critical care nursing according to claim 9, characterized in that: The top of the airbag (2) is fixedly connected with a flexible layer.

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