A limb elevation device with quantifiable adjustable angle

Abstract

This invention relates to the field of rehabilitation and nursing equipment technology, and discloses a limb elevation device with quantifiable adjustable angle. A lifting platform slidably mounted within a support base drives the support components, enabling a wide range of overall coarse adjustments to the limb elevation height to adapt to different bed scenarios and basic body position requirements. Simultaneously or differentially driven by dual electric telescopic rods symmetrically arranged on the lifting platform, the support plate rotates, achieving quantifiable and precise adjustment of the support angle to match the clinical nursing requirements of different conditions. Simultaneously, a single air pump, via multiple air paths with independent solenoid valves, connects one-to-one with multiple sets of differentiated length airbags arrayed along the physiological curvature of the limb on the support plate. By independently controlling the on / off state of each solenoid valve, selective inflation and deflation of the airbags are achieved, transforming the target airbag from a flat, bent position to an upright support state, completing precise, graded elevation of the limb. Ultimately, this achieves multi-dimensional quantifiable control and differentiated support for limb elevation.

Description

Technical Field

[0001] This invention relates to the field of rehabilitation and nursing equipment technology, and in particular to a limb elevation device with quantifiable adjustable angle. Background Technology

[0002] Limb elevation is one of the most widely used basic nursing measures in clinical nursing, rehabilitation intervention, and position management for bedridden patients. It is a routine standardized intervention in many clinical departments, including orthopedics, vascular surgery, critical care medicine, rehabilitation medicine, geriatrics, burn surgery, and hand surgery. In clinical practice, standardized limb elevation can effectively promote venous and lymphatic return in the limbs, reduce postoperative or post-traumatic limb swelling, and alleviate local pain and discomfort. It is also a clinical method for preventing deep vein thrombosis in the lower extremities, assisting in improving symptoms in patients with peripheral vascular disease, and standardizing the passive leg raise test for hemodynamic monitoring. The core operational step of the assessment is limb elevation. In clinical scenarios such as postoperative rehabilitation in orthopedics, wound repair, lymphedema intervention, and conservative treatment of peripheral vascular disease, limb elevation is often combined with rehabilitation treatments such as local fumigation and heat fumigation. On the basis of standardized elevation of the affected limb to ensure venous and lymphatic return, targeted fumigation intervention can further improve local microcirculation, promote wound healing, and relieve muscle spasms and inflammatory reactions. The synergistic effect of the two can significantly enhance the clinical intervention effect, which has important clinical value in reducing the incidence of complications in bedridden patients, accelerating the postoperative recovery process, and improving the homogenization of clinical nursing.

[0003] With the continuous deepening of the concept of precision nursing in clinical practice and the gradual improvement of intelligent nursing and standardized nursing management systems, patients with different disease types, different treatment stages, and different individual physical conditions have all developed clear and differentiated clinical application requirements regarding the positional parameters, adaptability, and operational standardization of limb elevation. Currently, limb elevation-related assistive devices are widely used in inpatient wards, outpatient rehabilitation centers, community health service institutions, professional elderly care institutions, and home rehabilitation scenarios in medical institutions at all levels. The suitable population covers multiple groups, including postoperative rehabilitation patients, patients with peripheral vascular disease, long-term bedridden elderly people, sports injury rehabilitation patients, and patients with lymphedema. It has become an indispensable basic supporting equipment in clinical nursing and home rehabilitation care.

[0004] Regarding the above-mentioned and existing related technologies, the inventors believe that the following defects often exist: Existing elevation devices are all integrated fixed support structures. When patients need to undergo routine clinical nursing operations such as dressing changes, wound cleaning, wound observation, and dressing changes, the patient's limb must be completely lifted off the device or the device must be completely disassembled to expose the operating area. This not only requires multiple medical staff to operate together, greatly increasing the workload of clinical nursing, but also easily causes secondary damage such as wound dehiscence, fracture displacement, and increased pain to the affected limb of postoperative or trauma patients during the process of moving and pulling, posing significant nursing safety hazards. In particular, it is not suitable for patients who need strict immobilization after orthopedic surgery or severe trauma. Summary of the Invention

[0005] The technical problem to be solved by the present invention is that the existing technology has the disadvantages of severely limiting clinical nursing operations, failing to reserve safe operating space in the immobilized state of the affected limb, easily causing secondary injury, and extremely low nursing efficiency. To this end, we propose a limb elevation device with quantifiable adjustable angle.

[0006] To achieve the above objectives, this application adopts the following technical solution: a limb elevation device with quantifiable angle adjustment, comprising a support body, the support body including a bearing base, a lifting platform, a support assembly and an air pump assembly, characterized in that the lifting platform is slidably assembled inside the bearing base; The support assembly includes a support plate, which is rotatably connected to the upper end of the lifting platform. Multiple airbags are arrayed on the upper end of the support plate. The air pump assembly is fixedly installed on the outside of the support base. The air outlet of the air pump assembly is connected to each airbag through multiple independent air passages. Each independent air passage is equipped with a solenoid valve for controlling the opening and closing of the air passage. An electric telescopic rod is fixedly installed inside the lifting platform. The drive end of the electric telescopic rod is hinged to the lower end of the support plate, which is used to drive the support plate to rotate around the hinge axis to adjust the support angle.

[0007] Preferably, the air pump assembly has an air outlet pipe connected to its outlet end, and the support base has multiple sets of air inlet pipes that can adaptively extend with the movement of the lifting platform. The air outlet pipe is connected to each set of air inlet pipes, and the air outlet end of the air inlet pipe is connected to the air inlet end of the corresponding solenoid valve, forming an independent air path.

[0008] Preferably, multiple airbags are arranged in a linear array along the limb placement direction on the upper end of the support plate, and the length of each airbag decreases sequentially from the proximal end to the distal end of the limb.

[0009] Preferably, an elastic band is provided between two adjacent airbags, and a flow groove corresponding to the elastic band is opened at the upper end of the support plate. A Velcro fastener that can be detachably adsorbed and cooperates with the end of the elastic band is also fixed at the upper end of the support plate.

[0010] Preferably, the width of the elastic band is greater than the width of the opening of the flow channel. Under normal conditions, the elastic band completely covers the opening of the flow channel, and the Velcro is located on one side of the flow channel.

[0011] Preferably, both ends of the airbag have integrally formed threaded sections, and the outer threads of the threaded sections are screwed with connecting bends. The connecting bends are fixedly connected to the support plate, and the air passage end of the connecting bends is connected to the corresponding independent air passage.

[0012] Preferably, the lifting platform has an internal placement groove that corresponds to the flow channel, and the placement groove has a pull-out sliding assembly for the fumigation box.

[0013] Preferably, the upper end of the fumigation box has multiple sets of exhaust channels, which are positioned directly opposite the lower end of the flow channel.

[0014] Preferably, there are two sets of electric telescopic rods, which are symmetrically arranged on the left and right sides inside the lifting platform. The drive ends of the two sets of electric telescopic rods are respectively hinged to the left and right sides of the lower end of the support plate. The two sets of electric telescopic rods extend and retract synchronously to drive the overall lifting of the support plate.

[0015] Preferably, the airbag is a hollow tube structure made of medical-grade elastic material, and the ends of adjacent airbags are flush with each other.

[0016] The technical effects and advantages of this invention are as follows: In this invention, a lifting platform slidably mounted within a support base drives the support components to achieve a wide range of overall limb elevation. The electric telescopic rod on the lifting platform drives the support plate to rotate, enabling quantifiable and precise adjustment of the support angle. Simultaneously, a single air pump, through multiple air paths with independent solenoid valves, is connected to multiple sets of airbags arrayed on the support plate. By independently controlling the on / off state of each solenoid valve, selective inflation and deflation of one or more sets of airbags are achieved, causing the corresponding airbags to change from a flat, bent state to an upright support state. This completes the precise, graded elevation of the limb, achieving multi-dimensional quantifiable control and differentiated fit support for limb elevation. Attached Figure Description

[0017] The disclosure of this invention is illustrated with reference to the accompanying drawings. It should be understood that the drawings are for illustrative purposes only and are not intended to limit the scope of protection of this invention. In the drawings, the same reference numerals are used to refer to the same parts: Figure 1 This is a schematic diagram of the overall structure of the supporting body of the present invention. Figure 1 ; Figure 2 This is a schematic diagram of the overall structure of the supporting body of the present invention. Figure 2 ; Figure 3 This is a schematic diagram of the overall structure of the supporting body of the present invention. Figure 3 ; Figure 4 This is a schematic diagram of the internal structure of the bearing base of the present invention; Figure 5 This is a schematic diagram of the support component structure of the present invention; Figure 6 This is a schematic diagram of the airbag structure of the present invention.

[0018] Legend: 1. Support body; 11. Bearing base; 12. Lifting platform; 121. Electric telescopic rod; 122. Placement slot; 123. Fumigation box; 1231. Exhaust slot; 13. Air pump assembly; 131. Air outlet pipe; 132. Air inlet pipe; 133. Solenoid valve; 14. Support assembly; 141. Support plate; 1411. Flow channel; 142. Airbag; 1421. Threaded section; 1422. Connecting bend; 143. Elastic band; 144. Velcro. Detailed Implementation

[0019] It is readily understood that, based on the technical solution of this invention, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of the invention. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this invention and should not be considered as the entirety of the invention or as limitations or restrictions on the technical solution of this invention.

[0020] Reference Figure 1-2 As shown, the present invention provides a technical solution: a limb elevation device with quantifiable adjustable angle, including a support body 1, the support body 1 including a bearing base 11, a lifting platform 12 slidably mounted inside the bearing base 11, a support component 14 rotatably connected to the upper end of the lifting platform 12, and an air pump component 13 fixedly installed on the outer side of the bearing base 11. The air outlet of the air pump component 13 is connected to the air passage of the support component 14. By sliding and lifting the lifting platform 12, the support component 14 can be driven to complete a wide range of overall height adjustment. With the angle fine adjustment and graded support structure of the support component 14, multi-dimensional, quantifiable and precise control of limb elevation position can be achieved, adapting to diverse clinical nursing and rehabilitation needs.

[0021] Reference Figure 1-3As shown in this embodiment: an air outlet pipe 131 is connected to the upper end of the air pump assembly 13. Multiple sets of air inlet pipes 132 are slidably mounted inside the support base 11. The air inlet pipes 132 can adaptively extend inside the support base 11 as the lifting platform 12 rises and falls and the angle of the support assembly 14 is adjusted. The air outlet pipe 131 is connected to the multiple sets of air inlet pipes 132. Solenoid valves 133 are installed at the connection points between the air inlet pipes 132 and the support assembly 14. Each set of solenoid valves 133 is independently connected to each airbag 142 of the support assembly 14. The extendable air inlet pipe 132 design avoids problems such as pulling, bending, and detachment of the pipeline during device adjustment, ensuring the stability of the air circuit throughout the process. The independent on / off design of a single airbag corresponding to a single solenoid valve allows for selective inflation and shutdown of single or multiple airbags without relying on overall air pump control, making operation convenient and providing a hardware foundation for precise graded and zoned support of the airbags, resulting in higher control precision.

[0022] Reference Figure 1-5 As shown in this embodiment: the support component 14 includes a support plate 141, and multiple sets of airbags 142 are provided at the upper end of the support plate 141. The airbags 142 are made of multiple sets of hollow tubular materials of medical grade elastic material. An elastic band 143 is provided between each pair of adjacent airbags 142. The airbags 142, made of elastic material, have excellent flexibility and cushioning performance, which can be adapted to the long-term placement of the patient's limbs, effectively disperse the stress at the pressure points of the limbs, avoid pressure sores caused by long-term local pressure, and greatly improve the comfort of postoperative rehabilitation and long-term bedridden patients. The elastic band 143 is provided between adjacent airbags 142. One end of the elastic band 143 is fixedly connected to the support plate 141. Under normal conditions, it can form a flat and flexible support surface together with the airbags 142, serving as a regular support pad to meet the basic limb elevation needs. At the same time, it can be disassembled and switched to achieve the limb fixation function, making it a multi-purpose product that meets the diverse usage needs of clinical and home scenarios.

[0023] Reference Figure 5 As shown in this embodiment, multiple airbags 142 are arranged in a linear array along the length of the limb at the upper end of the support plate 141, and the length of each airbag 142 is different. Specifically, the length can be set sequentially decreasing from the proximal end to the distal end of the limb. The horizontal support height of the airbags 142 after inflation and standing upright can perfectly adapt to the physiological curvature of the human limb, which is thicker at the top and thinner at the bottom, so as to achieve uniform fit and support along the entire length of the limb, avoid the problem of the distal limb being suspended and the proximal end being excessively compressed, and further improve the support stability and fit comfort during the limb raising process.

[0024] Reference Figure 1-5As shown in this embodiment: the upper end of the support plate 141 has multiple sets of flow grooves 1411 that are spaced apart from the airbags 142. The width of the elastic band 143 is slightly larger than the width of the flow grooves 1411, and under normal conditions, it can completely cover the flow grooves 1411 to ensure the flatness of the support surface. The upper end of the support plate 141 is also fixedly installed with multiple sets of Velcro 144. The Velcro 144 and the end of the elastic band 143 can be detachably attached. When it is necessary to limit and fix the patient's limb, the elastic band 143 can be removed from the Velcro 144, passed through the flow grooves 1411 and wrapped around the outside of the patient's limb, and then reattached to the Velcro 144 to achieve reliable limb limitation and avoid lateral slippage or displacement of the limb during the lifting process. It can also be used for patients with different limb thicknesses and has strong versatility. When no fixation is needed, the elastic band 143 can be reset to cover the flow grooves 1411 to quickly restore the flat support surface. The function switching is convenient and efficient.

[0025] Reference Figure 2-6 As shown in this implementation scheme: the airbag 142 is made of medical-grade flexible polyurethane / medical-grade silicone, which is non-allergenic and non-irritating, and can directly contact the patient's skin. The material has excellent tensile and cushioning properties, and after inflation, it has moderate softness and firmness, which can perfectly conform to the physiological curvature of the limb, effectively disperse local pressure, and prevent pressure sores. The surface is treated with antibacterial and anti-fouling agents, and can be directly wiped and disinfected with alcohol or chlorine-containing disinfectants. It can also be quickly disassembled and replaced through the threaded structure at both ends, which is compatible with the infection control requirements of medical institutions and avoids cross-infection. Both ends of the airbag 142 have integrally formed threaded sections 1421. The outer side of 21 is threaded with a connecting elbow 1422. The other end of the connecting elbow 1422 is fixedly connected to the support plate 141 and connected to the air passage of the corresponding air inlet pipe 132. Through the detachable screw connection structure between the threaded section 1421 and the connecting elbow 1422, the airbag 142 can be quickly disassembled and replaced. This not only meets the replacement needs of airbags of different specifications and elastic coefficients, but also facilitates the cleaning and disinfection of the device and the individual replacement of damaged parts, effectively reducing the cost of use and maintenance, while meeting the relevant requirements for infection control in medical institutions.

[0026] Reference Figure 2-6As shown in this embodiment: the lifting platform 12 has multiple sets of placement slots 122 corresponding to the flow channel 1411. Each placement slot 122 integrates a medical-grade PTC constant-temperature electric heating module, which can directly and evenly heat the herbal medicine pack inside the fumigation box, generating stable and uniform medicinal vapor. A fumigation box 123 is slidably mounted inside the placement slot 122. Multiple sets of exhaust slots 1231 are provided at the upper end of the fumigation box 123, and these exhaust slots 1231 are positioned directly opposite the lower end of the flow channel 1411. When patients need to undergo rehabilitation treatments such as fumigation or hot fumigation, the fumigation box 123 can be pulled out from the placement slot 122, and the corresponding medicine pack and hot fumigation medium can be placed in and then reset. The medicinal steam and hot air generated by fumigation can flow upward through the exhaust slot 1231 and directly act on the affected area of ​​the patient's limb through the circulation slot 1411. Without the need for additional rehabilitation treatment equipment, limb elevation and local fumigation can be carried out simultaneously, greatly reducing the movement of the patient's body position, avoiding secondary traction damage to the postoperative or traumatic affected area, and improving the convenience and safety of rehabilitation treatment.

[0027] Reference Figure 2-6 As shown in this embodiment: Two sets of symmetrically arranged electric telescopic rods 121 are fixedly installed inside the lifting platform 12. The drive ends of the two sets of electric telescopic rods 121 are respectively hinged to the lower left and right sides of the support plate 141. The drive ends of the electric telescopic rods 121 are rotatably connected to the lower end of the support plate 141. Through the synchronous extension and retraction of the two sets of electric telescopic rods 121, the support plate 141 can be raised and lowered as a whole, achieving a wide range of coarse adjustments to the limb elevation height. Through the differential extension and retraction of the two sets of electric telescopic rods 121, the support plate 141 can be rotated around the hinge axis, achieving precise adjustment of the support angle. Furthermore, the extension and retraction amount of the electric telescopic rods 121 can be precisely controlled, corresponding to the support... The lifting angle of the support plate 141 can be quantified and displayed in real time, fully adapting to the requirements of precise clinical nursing. It can realize differentiated position settings such as unilateral elevation and left and right tilting to meet the clinical nursing needs of different diseases. After the angle of the support plate 141 is adjusted, the airbag 142 at the designated position can be inflated through the cooperation of the air pump assembly 13 and the solenoid valve 133, so that the airbag 142 changes from a bent and flat state to an upright support state, thereby driving the corresponding limb to be further lifted. Usually, two sets of airbags 142 can be set up along the length of the limb to inflate and lift simultaneously, so that the limb maintains an elevated posture that conforms to the physiological curvature, further improving the patient's comfort. Meanwhile, when it is necessary to perform nursing operations such as dressing changes and wound cleaning on a specific location of the patient's limb, the airbag 142 corresponding to the operation location can be kept in a deflated and flat state, and the airbags 142 on both sides of the operation location can be inflated and raised to create a suspended operation gap at the operation location. This allows for convenient completion of dressing changes and wound cleaning without moving the patient's limb or disassembling the device, avoiding contact damage to the affected area during the operation and greatly improving the convenience and safety of clinical nursing operations.

[0028] Working principle: The lifting platform 12, which is slidably mounted inside the support base 11, allows for a wide range of coarse adjustments to the overall height of the support assembly 14. The synchronous extension and retraction of two sets of symmetrically arranged electric telescopic rods 121 inside the lifting platform 12 drives the overall lifting and lowering of the support plate 141, while the differential extension and retraction drives the support plate 141 to rotate around the hinge axis, achieving quantifiable and precise adjustment of the limb support angle. Compressed air is provided by the air pump assembly 13 fixed to the outside of the support base 11, and is delivered to each independent air path via the air outlet pipe 131 and multiple sets of air inlet pipes 132 that can adaptively extend with the device's movement. By controlling the on / off state of the corresponding solenoid valves 133 on each independent air path, the independent selective inflation of multiple sets of differently lengthed airbags 142 arrayed along the limb direction at the upper end of the support plate 141 is achieved. Deflating the airbag 142 changes it from a bent, flat state to an upright, supportive state, achieving precise, graded lifting of the corresponding limb position. Simultaneously, the airbag 142 can be quickly disassembled and replaced by rotating the connecting bends 1422 on the threaded sections 1421 at both ends. The elastic band 143 between adjacent airbags 142 is removed, wrapped around the limb, and then attached to the Velcro 144 on the support plate 141 for fixation, preventing limb displacement. The fumigation box 123 in the placement slot 122 of the lifting platform 12 is pulled out, fumigation medium is added, and the platform is reset. The airflow generated by fumigation then acts directly on the affected limb through the exhaust slot 1231 at the top of the fumigation box 123 and the flow channel 1411 on the support plate 141, achieving integrated and simultaneous limb elevation support and rehabilitation fumigation therapy.

[0029] The technical scope of this invention is not limited to the content described above. Those skilled in the art can make various modifications and variations to the above embodiments without departing from the technical concept of this invention, and all such modifications and variations should fall within the protection scope of this invention.

Claims

1. A limb elevation device with quantifiable adjustable angle, characterized in that, The support body includes a bearing base, a lifting platform, a support assembly, and an air pump assembly, characterized in that the lifting platform is slidably assembled inside the bearing base; The support assembly includes a support plate, which is rotatably connected to the upper end of the lifting platform, and the upper end of the support plate is provided with an array of multiple airbags. The air pump assembly is fixedly installed on the outside of the support base. The air outlet of the air pump assembly is connected to each of the air bags through multiple independent air passages. Each of the independent air passages is equipped with a solenoid valve for controlling the opening and closing of the air passage. An electric telescopic rod is fixedly installed inside the lifting platform. The driving end of the electric telescopic rod is hinged to the lower end of the support plate, and is used to drive the support plate to rotate around the hinge axis to adjust the support angle.

2. The limb elevation device with quantifiable angle adjustment according to claim 1, characterized in that: The air pump assembly has an air outlet pipe connected to its outlet end. The bearing base has multiple sets of air inlet pipes that can extend adaptively with the movement of the lifting platform. The air outlet pipe is connected to each set of air inlet pipes. The air outlet end of the air inlet pipe is connected to the air inlet end of the corresponding solenoid valve, forming the independent air path.

3. The limb elevation device with quantifiable angle adjustment according to claim 1, characterized in that: Multiple sets of airbags are arranged in a linear array along the limb placement direction on the upper end of the support plate, and the length of each set of airbags decreases sequentially from the proximal end to the distal end of the limb.

4. The limb elevation device with quantifiable angle adjustment according to claim 1, characterized in that: An elastic band is provided between each pair of adjacent airbags. A flow groove corresponding to the elastic band is opened at the upper end of the support plate. A Velcro fastener that can be detachably attached to the end of the elastic band is also fixed at the upper end of the support plate.

5. The limb elevation device with quantifiable angle adjustment according to claim 1, characterized in that: The width of the elastic band is greater than the width of the opening of the flow channel. Under normal conditions, the elastic band completely covers the opening of the flow channel, and the Velcro is located on one side of the flow channel.

6. The limb elevation device with quantifiable angle adjustment according to claim 1, characterized in that: Both ends of the airbag have integrally formed threaded sections, and a connecting bend is screwed onto the outer thread of the threaded section. The connecting bend is fixedly connected to the support plate, and the air passage end of the connecting bend is connected to the corresponding independent air passage.

7. The limb elevation device with quantifiable angle adjustment according to claim 1, characterized in that: The lifting platform has an internal placement groove that corresponds to the flow channel, and a fumigation box is installed inside the placement groove by a pull-out sliding mechanism.

8. The limb elevation device with quantifiable angle adjustment according to claim 1, characterized in that: The upper end of the fumigation box has multiple sets of exhaust channels, which are positioned directly opposite the lower end of the flow channel.

9. The limb elevation device with quantifiable angle adjustment according to claim 1, characterized in that: The electric telescopic rods are provided in two sets, which are symmetrically arranged on the left and right sides inside the lifting platform. The driving ends of the two sets of electric telescopic rods are respectively hinged to the left and right sides of the lower end of the support plate. The two sets of electric telescopic rods extend and retract synchronously to drive the support plate to rise and fall as a whole.

10. The limb elevation device with quantifiable angle adjustment according to claim 1, characterized in that: The airbag is a hollow tube structure made of medical-grade elastic material, and the ends of adjacent airbags are flush with each other.

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