Lower limb lifting device for bedridden patient

Abstract

The utility model provides a lower limb lifting device for a bedridden patient. The lower limb lifting device comprises a bottom plate, the lifting cushion is arranged above the bottom plate and is used for supporting the lower limbs of the patient; the control box is arranged at the end part of the bottom plate, and a certain gap is formed between the control box and the lifting pad to form a groove; the foot rest plate is arranged above the control box in a front-back adjustable mode and used for supporting the feet of the patient; one end of the bearing cloth is connected with the upper edge of the end, close to the control box, of the lifting pad, the other end of the bearing cloth is connected with the interior of the control box across the groove, and the control box can control the tightness state of the bearing cloth so as to achieve pressure distribution on the heels and the shanks of the patient. According to the device, the safety, comfort and adaptability of the device for lifting the lower limbs of the bedridden patient are remarkably improved.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, in particular to a device for raising the lower limbs of bedridden patients. Background Art

[0002] For patients who have to stay in bed for a long time due to paralysis or recent surgery, it is very important to take appropriate measures to promote blood return and circulation in the lower limbs. At the same time, these measures can also assist patients in rehabilitation training. Patent No. CN215607114U provides a lower limb elevation device for bedridden patients. The device mainly includes: a lifting pad and a footrest. The footrest has baffles on both sides of the front surface and an arc-shaped support plate at the bottom of the front surface. The lifting pad is used to place the lower limbs, the arc-shaped support plate is used to place the heels, and the baffles on both sides are used to prevent the feet from tilting left and right.

[0003] However, there are some problems with the above device in actual use: first, the arc-shaped support plate is fixed and relatively hard, which makes it not ideal in distributing pressure on the calves and heels. Due to the hardness of the support plate, the patient may feel excessive pressure on the calves or heels during use, which not only affects the blood circulation of the lower limbs, but may also cause pressure sores; secondly, due to the presence of the baffle and the arc-shaped support plate, the patient's foot range of motion is limited. For those patients who can perform some minor activities, this limitation may hinder their rehabilitation training and is not conducive to recovery from the disease. Utility Model Content

[0004] The purpose of the utility model is to provide a lower limb lifting device for bedridden patients in order to address the deficiencies of the prior art.

[0005] The specific technical solutions are as follows:

[0006] A device for raising the lower limbs of a bedridden patient, comprising:

[0007] base plate;

[0008] A lifting pad is placed above the baseboard to support the patient's lower limbs;

[0009] The control box is arranged at the end of the bottom plate and forms a certain gap with the raising pad to form a groove;

[0010] A footrest, which is arranged above the control box and can be adjusted forward and backward to support the patient's feet; and

[0011] One end of the support cloth is connected to the upper edge of the lifting pad close to the control box, and the other end is connected to the inside of the control box across the groove. The control box can control the tightness of the support cloth to achieve pressure distribution on the patient's heel and calf.

[0012] Optionally, an entrance is provided at the top of the control box, and a slide groove is provided below the entrance of the control box; a slide rod is vertically slidably connected in the slide groove, and the supporting cloth is fixedly connected to the slide rod after entering the control box through the entrance. A worm gear control component is provided in the control box for controlling the up and down movement of the slide rod to adjust the tightness of the supporting cloth.

[0013] Optionally, the worm gear control component includes a worm gear, a torsion bar, a short pin and a driving component, the worm gear is rotatably connected in the control box, the torsion bar is fixed on one side of the worm gear, the short pin is fixed on the end of the torsion bar, the slide bar is provided with a control groove, and the driving component is provided in the control box for driving the worm gear to rotate, wherein the slide bar is provided with a control groove, and the short pin is installed in the control groove. When the worm gear rotates, the slide bar is driven up and down by the short pin, thereby adjusting the tightness of the supporting cloth.

[0014] Optionally, the driving member includes a rotating shaft, a worm, a first gear, an idler gear, a second gear and a knob, the rotating shaft is rotatably arranged in a control box, the worm is coaxially fixedly connected to the rotating shaft and meshes with the worm gear, the first gear is rotatably connected to the rotating shaft, the idler gear and the second gear are both rotatably connected in the control box, the knob extends out of the control box and is coaxially fixedly connected to the second gear, and the first gear meshes with the second gear on the knob through the idler gear.

[0015] Optionally, a plug-in plate is installed on the footrest, and the plug-in plate is inserted into a plurality of sockets provided on the top of the control box to adjust the front and rear position of the footrest.

[0016] Optionally, a reinforcement plate is provided on one end of the base plate close to the control box.

[0017] Optionally, a plurality of anti-slip pads are provided on the bottom of the control box and the bottom plate.

[0018] Optionally, a soft cushion is provided on the front side of the footrest.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] The utility model adopts the design of a footrest that can be adjusted forwards and backwards and a support cloth with adjustable tightness. The device can be personalized according to the patient's needs, providing the patient with a more comfortable and safe lifting experience; the worm gear and gear set design realizes the precise control of the tightness of the support cloth, and at the same time greatly simplifies the adjustment process through knob operation, thereby improving the convenience of operation; the setting of the reinforcement plate, anti-slip foot pad and soft pad comprehensively improves the stability and safety of use of the device from three aspects: structural strength, anti-slip performance and contact comfort; the transmission method of the worm gear and worm gear combined with the gear set not only improves the force transmission efficiency, but also realizes the precise distribution of force, ensuring the smoothness and stability of the lifting process; the flexible adjustment of the footrest position and the groove design not only improve the spatial layout flexibility of the device, but also increases the versatility of the device to adapt to different usage scenarios. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0022] Figure 2 This is a schematic cross-sectional view of the control box of the utility model;

[0023] Figure 3 This utility model Figure 2 A magnified view of the structure at the middle letter A;

[0024] Figure 4 It is a schematic diagram of the exploded structure of the present utility model.

[0025] In the figure: 1. Control box; 2. Knob; 3. Reinforcement plate; 4. Base plate; 5. Lifting pad; 6. Footrest; 7. Insert plate; 8. Socket; 9. First gear; 10. Short pin; 11. Torsion bar; 12. Control slot; 13. Slide bar; 14. Rotating shaft; 15. Worm gear; 16. Worm; 17. Idle gear; 18. Support cloth; 19. Second gear. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0027] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features therein can be combined with each other.

[0028] The present invention will be further described below with reference to the accompanying drawings and specific embodiments, but they are not intended to limit the present invention.

[0029] The utility model provides a device for raising the lower limbs of bedridden patients, referring to Figures 1-4 , including a bottom plate 4;

[0030] A lifting pad 5 is provided above the base plate 4 and is used to support the patient's lower limbs;

[0031] The control box 1 is provided at the end of the bottom plate 4 and forms a certain gap with the raising pad 5 to form a groove;

[0032] A footrest 6 is arranged above the control box 1 and can be adjusted forward and backward to support the patient's feet; and

[0033] One end of the support cloth 18 is connected to the upper edge of the lifting pad 5 close to the control box 1, and the other end is connected to the inside of the control box 1 across the groove. The control box 1 can control the tightness of the support cloth 18 to achieve pressure distribution on the patient's heel and calf.

[0034] Reference Figure 1-Figure 3 Specifically, in this embodiment, the base plate 4 serves as the support foundation for the entire device, ensuring its stability and safety. Designed to be flat and of a certain thickness, the base plate 4 can be securely placed at the foot of a bed or on other flat surfaces, providing stable support for key components such as the lifting pad 5 and the control box 1. The lifting pad 5 is located above the base plate 4 and connected to it via a fixing mechanism to ensure it does not move during use. Made of soft, elastic medical-grade material, its shape conforms to the contours of the human lower limbs, effectively reducing pressure on the patient's lower limbs while providing comfortable support. The surface of the lifting pad 5 can be provided with a non-slip material to prevent the patient's lower limbs from sliding during the lifting process. The control box 1 is located at the end of the base plate 4, forming a groove between it and the lifting pad 5. The groove is designed to accommodate the support cloth 18, ensuring smooth adjustment of the support cloth 18's tightness. The control box 1 can precisely adjust the tightness of the support cloth 18 within the control box 1, effectively distributing pressure and locally reducing pressure on the patient's heel and calf, while also increasing the pressure-bearing area and alleviating localized pressure concentration in the lower limbs. The footrest 6 is positioned above the control box 1 and features a forward and backward adjustable design. Adjusting the footrest 6's position allows it to accommodate patients of varying leg lengths, ensuring comfortable foot support. The front of the footrest 6 is padded with hypoallergenic, breathable material to enhance patient comfort. The support fabric 18 is constructed from a material with appropriate elasticity and breathability to support the patient's heel while reducing pressure on the instep, balancing the force exerted on the ankle joint and preventing it from dropping, thereby enhancing comfort. The control box 1 controls the tightness of the support fabric 18, enabling precise control of lower limb elevation and pressure distribution.

[0035] In this device, the pressure distribution on the patient's heels and calves is achieved by adjusting the tightness of the support cloth 18, effectively reducing local pressure on the lower limbs, while increasing the pressure area, promoting blood circulation, and preventing pressure sores. The use of comfortable materials for the lifting pad 5 and the soft padding of the footrest 6, as well as the elastic design of the support cloth 18, ensure the comfort of the patient during use and reduce the discomfort caused by long-term bed rest. The front and rear adjustment function of the footrest 6 and the precise control of the tightness of the support cloth 18 by the control box 1 enable the device to adapt to patients with different leg lengths, improving the range of use and flexibility. The stable design of the base plate 4 and the careful selection of materials for the lifting pad 5, the footrest 6, and the support cloth 18 ensure the safety and stability of the patient during use and reduce the risk of sliding and displacement. Through the rational design and combination of the above-mentioned technical features, the utility model device achieves a significant improvement in the safety, comfort, and adaptability of the lower limb lifting device for bedridden patients.

[0036] Specifically, refer to Figure 1-Figure 3 The control box 1 is provided with an entrance at the top, and a chute is provided below the entrance. A slide bar 13 is vertically connected to the chute. The support cloth 18 enters the control box 1 through the entrance and is fixedly connected to the slide bar 13. A worm gear 15 control component is provided in the control box 1 to control the up and down movement of the slide bar 13 to adjust the tightness of the support cloth 18. The entrance at the top of the control box 1 is designed for the entry and exit of the support cloth 18, ensuring that the support cloth 18 can be smoothly connected to the slide bar 13. When the slide bar 13 moves up and down in the chute, it can drive the tension or relaxation of the support cloth 18 to adjust the tightness of the support cloth 18. The matching design of the slide bar 13 and the chute ensures the smoothness and stability of the sliding, avoiding shaking during the adjustment process. The setting of the worm gear 15 control component enables patients or caregivers to accurately adjust the tightness of the support cloth 18 through simple operations.

[0037] Reference Figure 3The worm gear 15 control component includes a worm gear 15, a torsion bar 11, a short pin 10 and a driving component. The worm gear 15 is connected to the control box 1 through axial rotation. The torsion bar 11 is fixed on one side of the worm gear 15, and the short pin 10 is fixed on the end of the torsion bar 11. A control groove 12 is provided on the slide bar 13. The driving component is provided in the control box 1 for driving the worm gear 15 to rotate. Among them, a control groove 12 is provided on the slide bar 13, and the short pin 10 is installed in the control groove 12. When the worm gear 15 rotates, the slide bar 13 is driven up and down by the short pin 10 (the inner walls on the left and right of the slide groove are provided with space that can buffer the left and right displacement of the slide bar 13), thereby adjusting the tightness of the supporting cloth 18. Among them, the driving component is used to provide rotational driving force and is the power source of the entire adjustment mechanism. When the driving component drives the worm gear 15 to rotate, the worm gear 15 rotates and drives the torsion bar 11 to rotate synchronously, forming a force transmission. When the torsion bar 11 rotates, the movement of the short pin 10 can be converted into the up and down movement of the slide bar 13, thereby affecting the tightness of the supporting cloth 18 fixedly connected to the slide bar 13. By controlling the angle of rotation of the worm gear 15, precise adjustment of the tightness of the supporting cloth 18 is achieved.

[0038] Specifically, refer to Figure 3 The driving member includes a rotating shaft 14, a worm 16, a first gear 9, an idler gear 17, a second gear 19 and a knob 2. The rotating shaft 14 is rotatably arranged in the control box 1. The worm 16 is coaxially fixedly connected to the rotating shaft 14 and meshes with the worm gear 15. The first gear 9 is rotatably connected to the end of the rotating shaft 14. The idler gear 17 and the second gear 19 are both rotatably connected in the control box 1. The knob 2 is coaxially fixedly connected to the second gear 19. The first gear 9 meshes with the second gear 19 on the knob 2 through the idler gear 17. When the knob 2 is rotated, the second gear 19 rotates accordingly, and drives the first gear 9 to rotate through the transfer of the idler gear 17. This design utilizes the deceleration and force-increasing characteristics of the gear set; through the rotation of the knob 2, the force is transmitted to the worm 16 via the second gear 19, the idler gear 17, and the first gear 9. When the worm 16 rotates, it can drive the worm wheel 15 to rotate, and finally drive the slide bar 13 to move up and down, realizing the conversion and distribution of force, and ensuring the precise adjustment of the supporting cloth 18.

[0039] Reference Figure 4 The footrest 6 is mounted with an insert plate 7, which is inserted into multiple sockets 8 on the top of the control box 1 to adjust the front-to-back position of the footrest 6. Inserting the insert plate 7 into the sockets 8 at different positions, the insert plate 7 is secured in place by friction or by a mating fastener (such as a spring pin), enabling adjustment of the footrest 6's position. The dimensions of the insert plate 7 and the sockets 8 are designed to ensure precise and secure insertion. Once inserted, the insert plate 7 can be locked in place by aligning the positioning structure within the sockets 8 (such as a groove or spring pin) with the corresponding structure on the insert plate 7 (a protrusion or a pin hole), ensuring stability during use.

[0040] Specifically, refer to Figure 4 A reinforcement plate 3 is provided on the end of the base plate 4 near the control box 1, forming a stable connection between the reinforcement plate 3 and the base plate 4. The purpose of this design is to enhance the structural strength and stability of the base plate 4 in this area. The reinforcement plate 3 is usually made of high-strength materials, such as low-alloy high-strength steel plate, stainless steel plate, etc.

[0041] The control box 1 and the bottom of the base plate 4 are provided with a plurality of anti-skid pads, which are usually made of materials with a high friction coefficient such as rubber or silicone. The anti-skid pads increase the contact area and friction coefficient and utilize the principle of friction to improve the stability of the device.

[0042] A soft cushion is provided on the front of the footrest 6. The soft cushion is usually made of soft foam, gel or similar materials. The surface can be covered with fabric or leather to increase comfort, achieve pressure distribution and cushioning effects, and improve comfort and safety performance.

[0043] Working Principle: Utilizing the linkage of the drive components (rotating shaft 14, worm 16, and gear train), knob 2 is used to control the rotation of worm 16, which in turn drives the meshing worm gear 15. The rotation of worm gear 15 is connected through torsion bar 11, short pin 10, and slide bar 13, causing slide bar 13 to move up and down along the slide slot, changing the tension of support cloth 18 and achieving precise pressure distribution. The insert plate 7 on the footrest 6 cooperates with the multiple sockets 8 on the top of the control box 1. By inserting the insert plate 7 into different sockets 8, the fore-and-aft position of the footrest 6 can be adjusted to meet the needs of different patients or usage scenarios.

[0044] The above are only preferred embodiments of the present invention and do not limit the implementation methods and protection scope of the present invention. Those skilled in the art should be aware that all solutions obtained by equivalent substitutions and obvious changes made using the description and illustrations of the present invention should be included in the protection scope of the present invention.

Claims

1. A device for raising the lower limbs of bedridden patients, characterized in that: include: base plate; A lifting pad is placed above the baseboard to support the patient's lower limbs; The control box is arranged at the end of the bottom plate and forms a certain gap with the raising pad to form a groove; A footrest, which is arranged above the control box and can be adjusted forward and backward to support the patient's feet; as well as One end of the support cloth is connected to the upper edge of the lifting pad close to the control box, and the other end is connected to the inside of the control box across the groove. The control box can control the tightness of the support cloth to achieve pressure distribution on the patient's heel and calf.

2. The lower limb lifting device for bedridden patients according to claim 1, characterized in that: An entrance is provided at the top of the control box, and a slide groove is provided below the entrance of the control box; a slide rod is vertically slidably connected in the slide groove, and the supporting cloth is fixedly connected to the slide rod after entering the control box through the entrance. A worm gear control component is provided in the control box for controlling the up and down movement of the slide rod to adjust the tightness of the supporting cloth.

3. The lower limb lifting device for bedridden patients according to claim 2, characterized in that: The worm gear control component includes a worm gear, a torsion bar, a short pin and a driving component. The worm gear is rotatably connected to the control box, the torsion bar is fixed on one side of the worm gear, and the short pin is fixed on the end of the torsion bar. The driving component is arranged in the control box to drive the worm gear to rotate. The slide rod is provided with a control groove, and the short pin is installed in the control groove. When the worm gear rotates, the slide rod is driven up and down by the short pin, thereby adjusting the tightness of the supporting cloth.

4. The lower limb lifting device for bedridden patients according to claim 3, characterized in that: The driving component includes a rotating shaft, a worm, a first gear, an idler gear, a second gear and a knob. The rotating shaft is rotatably arranged in the control box. The worm is coaxially fixedly connected to the rotating shaft and meshes with the worm gear. The first gear is rotatably connected to the rotating shaft. The idler gear and the second gear are both rotatably connected in the control box. The knob extends out of the control box and is coaxially fixedly connected to the second gear. The first gear meshes with the second gear on the knob through the idler gear.

5. The lower limb lifting device for bedridden patients according to claim 1, characterized in that: The footrest is provided with an inserting plate, which is inserted into a plurality of inserting holes provided on the top of the control box to adjust the front and rear positions of the footrest.

6. The lower limb lifting device for bedridden patients according to claim 1, characterized in that: A reinforcement plate is provided on one end of the bottom plate close to the control box.

7. The lower limb lifting device for bedridden patients according to claim 1, characterized in that: The control box and the bottom of the base plate are provided with a plurality of anti-skid pads.

8. The lower limb lifting device for bedridden patients according to claim 1, characterized in that: A soft cushion is provided on the front side of the footrest.

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