Lower limb vein ulcer nursing device

Abstract

The invention belongs to the technical field of medical nursing, and particularly relates to a lower limb vein ulcer nursing device which comprises a base, a sliding rail is fixedly connected to the top of the base, a sliding seat is slidably connected to the top of the sliding rail, a cushion is fixedly connected to the top of the sliding seat, and a fixed supporting rod is fixedly connected to the top of one end of the sliding rail. A rotary supporting rod is hinged to the top of the fixed supporting rod, a back cushion is fixedly connected to the side, close to the seat cushion, of the rotary supporting rod, a transversely-arranged piston barrel is fixedly connected to the top of the sliding seat, and a piston rod capable of transversely reciprocating is inserted into one side of the piston barrel. When a patient needs to adjust the sitting posture, the patient leans backwards to push the back cushion to rotate, the rotating supporting rod is driven to rotate around the hinge point, the connecting rod pulls the sliding seat to move along the sliding rail, then the seat cushion is driven to move, the position of the seat cushion is adjusted accordingly, synchronous adjustment of the sitting posture and the leg nursing position is achieved, the fatigue feeling of long-time nursing is relieved, and the comfort degree is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical care, and in particular to a nursing device for lower limb venous ulcer. Background Art

[0002] Venous leg ulcers (LVUs) are a common vascular disease, typically caused by poor venous blood flow. Patients often experience symptoms such as lower limb pain and swelling. Clinically, caring for patients with LVUs requires comprehensive consideration of patient comfort, stress regulation, and recovery outcomes.

[0003] After searching, a Chinese patent application with application publication number CN221751264U discloses a home care auxiliary device for lower limb venous ulcers, including a leg support part, an adjustment part, a support and a driving part. The device transmits power to the support frame through the driving part in the adjustment part, thereby changing the height of the support frame, thereby adjusting the height of the leg support part connected to the support frame.

[0004] However, these devices still have drawbacks. For example, they lack dynamic posture adjustment, leading to fatigue in patients with prolonged use due to the fixed posture, which compromises the effectiveness of care. The leg care portion also lacks flexibility in adjusting leg pressure, failing to adequately adapt to the leg shape and care needs of different patients. Therefore, a more comprehensive venous leg ulcer care device is needed to address these issues. Summary of the Invention

[0005] Based on the problem that the existing technology lacks a dynamic adjustment function for sitting posture, the present invention proposes a nursing device for lower limb venous ulcer.

[0006] The top of the sliding seat is fixed with a toothed structure, and the toothed structure is connected with the toothed structure to form a hollow tube, and the bottom of the sliding seat is fixed with a toothed structure, and the toothed structure is connected with the toothed structure to form a hollow tube.

[0007] Preferably, the bottom end of the baffle extends to below the rotating strut, a rubber pad is embedded in the top of the fixed strut near the baffle, and the bottom of the baffle near the fixed strut contacts the side of the rubber pad.

[0008] Preferably, the top of the sliding seat is fixedly connected to a hydraulic buffer rod, the top of the hydraulic buffer rod is fixedly connected to a seat cushion, the bottom of the seat cushion away from the back cushion is fixedly connected to a support plate, and two arc-shaped grooves are symmetrically opened on the side of the support plate away from the back cushion.

[0009] Preferably, the leg care component includes a shell, a fixed leg seat, a care column crawler conveyor, a pressure column, a return spring and two rollers. The number of care columns and pressure columns is equal and corresponds one to one, and the number of pressure columns and return springs is equal and corresponds one to one. The shell is fixedly connected to the side of the base, the fixed leg seat is fixedly connected to the outer wall of the shell away from the cushion, the care columns are inserted into the seat body of the fixed leg seat in two rows longitudinally, one end of the care column extends to the interior of the shell, the pressure column is fixedly connected to one end of the care column located inside the shell, the return spring is fixedly connected between the care column and the inner wall of the shell, the crawler conveyor is fixedly connected to the inner wall of the shell away from the care column, the two rollers are both transversely fixed to the outer surface of the crawler conveyor, and the two rollers can realize axial rotation.

[0010] Preferably, a guide arc surface is provided on one end of the nursing column located inside the shell, and limiting ears are fixedly connected to both sides of the other end of the nursing column.

[0011] Preferably, both sides of the outer surface of the crawler belt of the crawler conveyor are fixedly connected with lifting and adjusting components, and the two lifting and adjusting components are symmetrically arranged, and the two rollers are respectively rotatably connected to the adjacent sides of the two lifting and adjusting components.

[0012] Preferably, the lifting and adjusting assembly includes a conveying seat, a limit frame, a lifting seat, a support seat, a support ear and a screw. The conveying seat is fixedly connected to the outer surface of the crawler belt of the crawler conveyor, the limit frame is fixedly connected to the middle inner wall of the conveying seat, the lifting seat is slidably connected to the inside of the limit frame, the support seat is in contact with the lifting seat, and the lifting seat and the support seat can slide relative to each other, and the sides of the support seat and the lifting seat that are in contact with each other are both set as inclined planes. The sliding track of the lifting seat is perpendicular to the sliding track of the conveying seat, the support ear is fixedly connected to the side of the conveying seat away from the crawler conveyor, the screw is threadedly connected to the inside of the support ear, the axis of the screw is parallel to the sliding track of the support seat, and one end of the screw is rotatably connected to the side of the support seat.

[0013] Preferably, one end of the screw rod away from the support seat is fixedly connected to a knob.

[0014] Preferably, the fixed leg seat is fixedly connected to an axle seat in the middle of the side away from the shell, and the inside of the axle seat is rotatably connected to two connecting parts, and the ends of the two connecting parts are rotatably connected to limit buckles, and the two limit buckles are fixedly connected to a handle on the side away from the fixed leg seat, and the ends of the two limit buckles are fixedly connected to a pin barrel, and two pin seats are fixedly connected to both sides of the fixed leg seat, and the two pin seats on the same side of the fixed leg seat are respectively clamped at the two ends of adjacent pin barrels, and the same pin is inserted into the pin barrel and the two pin seats on the same side of the fixed leg seat.

[0015] Preferably, the two limiting buckles are fixedly connected to a soft pad on one side close to the fixed leg seat.

[0016] Compared with the prior art, the present invention provides a lower limb venous ulcer care device with the following beneficial effects:

[0017] 1. This lower limb venous ulcer care device is provided with a slide rail, a piston cylinder and a connecting rod. When the patient needs to adjust his sitting posture, he leans back to push the cushion to rotate, driving the rotating support rod to rotate around the hinge point. The connecting rod pulls the sliding seat to move along the slide rail, thereby driving the seat cushion to move. The seat cushion adjusts its position accordingly, thereby achieving synchronous adjustment of the sitting posture and leg care position, relieving fatigue from long-term care and improving comfort. During the rotation of the cushion, the relative position of the piston cylinder and the piston rod changes. At this time, the buffer spring is adaptively stretched or compressed to counteract the original movement trend of the cushion, thereby enhancing the support of the cushion for the patient's back. The support force increases with the increase of the angle between the cushion and the piston cylinder, preventing the angle of the cushion from changing too quickly, making it easier for the patient to maintain body balance when adjusting his sitting posture and avoiding secondary injury.

[0018] 2. This lower limb venous ulcer care device is equipped with a crawler conveyor, rollers, reset springs and nursing columns. The crawler conveyor drives the rollers to periodically push out the nursing columns, dynamically adjusts the leg support pressure, promotes blood circulation, and adapts to different leg shapes and nursing stage requirements. When the rollers push out the nursing columns, the reset springs are compressed. After leaving, the reset springs drive the nursing columns to reset, realizing periodic changes in pressure.

[0019] 3. This lower limb venous ulcer care device is provided with a screw, a support seat and a lifting seat. The screw cooperates with the thread of the support ear to convert the rotational motion into the linear displacement of the support seat. The support seat and the lifting seat are fitted together through the inclined surface. When the screw rotates, the support seat slides horizontally, driving the lifting seat to move vertically along the limit of the limit frame, thereby changing the distance between the roller and the outer surface of the crawler conveyor belt, and then changing the length of the care column pushed out by the roller, adapting to different leg shapes and care stage requirements, and optimizing the care effect. The inclined surface of the support seat and the lifting seat ensures that the pressure adjustment changes linearly, avoiding excessive pressure difference before and after adjustment, which may cause discomfort to the patient. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a schematic structural diagram of a lower limb venous ulcer nursing device proposed by the present invention;

[0021] Figure 2 This is a schematic structural diagram of a leg care component of a lower limb venous ulcer care device proposed by the present invention;

[0022] Figure 3 for Figure 2 A magnified view of point A in the figure;

[0023] Figure 4 This is a schematic diagram of the structure of a nursing column of a lower limb venous ulcer nursing device proposed by the present invention;

[0024] Figure 5 This is a schematic diagram of the structure of the lifting seat and the supporting seat of the lower limb venous ulcer nursing device proposed by the present invention;

[0025] Figure 6 This is a schematic structural diagram from another perspective of a lower limb venous ulcer nursing device proposed by the present invention;

[0026] Figure 7 This is a schematic diagram of the partial structure of a lower limb venous ulcer nursing device proposed by the present invention;

[0027] Figure 8 This is a schematic diagram of the limiting buckle structure of a lower limb venous ulcer care device proposed by the present invention.

[0028] In the figure: 1. Base; 2. Sliding seat; 3. Hydraulic buffer rod; 4. Support plate; 5. Seat cushion; 6. Slide rail; 7. Fixed support rod; 8. Rotating support rod; 9. Cushion; 10. Shell; 11. Fixed leg seat; 12. Nursing column; 13. Limit buckle; 14. Crawler conveyor; 15. Pin seat; 16. Pin barrel; 17. Latch; 18. Cushion; 19. Handle; 20. Pressure column; 21. Return spring; 22. Conveying seat; 23. Limit frame; 24. Lifting seat; 25. Roller; 26. Support seat; 27. Limit ear; 28. Guide arc surface; 29. ​​Support ear; 30. Screw; 31. Knob; 32. Piston cylinder; 33. Piston rod; 34. Connecting rod; 35. Stop rod; 36. Rotating seat; 37. Rubber pad; 38. Axle seat; 39. Connecting piece; 40. Pin barrel. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0030] Reference Figure 1-8A lower limb venous ulcer care device includes a base 1, a slide rail 6 is fixedly connected to the top of the base 1, and a slide seat 2 is slidably connected to the top of the slide rail 6, a seat cushion 5 is fixedly connected to the top of the slide seat 2, a fixed support rod 7 is fixedly connected to the top of one end of the slide rail 6, a rotating support rod 8 is hinged to the top of the fixed support rod 7, and a cushion 9 is fixedly connected to the side of the rotating support rod 8 close to the seat cushion 5, a piston cylinder 32 is fixedly connected to the top of the slide seat 2, and a piston rod 33 that can reciprocate laterally is inserted into one side of the piston cylinder 32. A buffer spring is provided inside the piston cylinder 32, and one end of the piston rod 33 inside the piston cylinder 32 is fixedly connected to the buffer spring, and the other end of the piston rod 33 is fixedly connected to the side of the fixed support rod 7. The top of the piston cylinder 32 is rotatably connected to the connecting rod 34, and the end of the connecting rod 34 away from the piston cylinder 32 is rotatably connected to the rotating seat 36. The bottom of the rotating support rod 8 close to the seat cushion 5 is fixedly connected to the blocking rod 35, and the rotating seat 36 is fixedly connected to the middle of the blocking rod 35. A leg care component is provided on the side of the base 1 away from the cushion 9.

[0031] In the present invention, the bottom end of the baffle rod 35 extends to the bottom of the rotating support rod 8, and a rubber pad 37 is embedded in the top of the fixed support rod 7 close to the baffle rod 35, and the bottom of the baffle rod 35 close to the fixed support rod 7 contacts the side of the rubber pad 37. The bottom of the baffle rod 35 contacts one side of the fixed support rod 7, so that the rotating support rod 8 cannot rotate toward this side, thereby limiting the initial angle of the cushion 9, which is convenient for the patient to sit on the device. When the bottom end of the baffle rod 35 contacts the rubber pad 37, the rubber pad 37 absorbs the impact force through its own deformation, avoiding direct rigid contact between the baffle rod 35 and the fixed support rod 7.

[0032] In the present invention, a hydraulic buffer rod 3 is fixedly connected to the top of the sliding seat 2, a seat cushion 5 is fixedly connected to the top of the hydraulic buffer rod 3, a support plate 4 is fixedly connected to the bottom of the seat cushion 5 away from the back cushion 9, and two arc-shaped grooves are symmetrically provided on the side of the support plate 4 away from the back cushion 9. The hydraulic buffer rod 3 cooperates with the seat cushion 5 to perform double cushioning on the patient's sitting process, further improving the patient's comfort when adjusting the sitting posture. The arc-shaped groove of the support plate 4 fits the calf curve, making it convenient for the patient to maintain an inconvenient calf angle, preventing coordinated movement of the calf when adjusting the sitting posture, and avoiding compression of the affected area.

[0033] In the present invention, the leg care component includes a shell 10, a fixed leg seat 11, a care column 12 crawler conveyor 14, a pressure column 20, a return spring 21 and two rollers 25. The number of care columns 12 and pressure columns 20 is equal and one-to-one corresponding, and the number of pressure columns 20 and return springs 21 is equal and one-to-one corresponding. The shell 10 is fixedly connected to the side of the base 1, the fixed leg seat 11 is fixedly connected to the outer wall of the shell 10 away from the side of the cushion 9, and the care columns 12 are inserted into the seat body of the fixed leg seat 11 in two rows. One end of the care column 12 extends to the interior of the shell 10, the pressure column 20 is fixedly connected to the end of the care column 12 located inside the shell 10, the return spring 21 is fixedly connected between the care column 12 and the inner wall of the shell 10, and the crawler conveyor 14 is fixedly connected to the shell 1 0 is located on the inner wall of the side away from the nursing column 12, and the two rollers 25 are transversely fixed to the outer surface of the crawler belt of the crawler conveyor 14, and the two rollers 25 can realize axial rotation. The patient's legs are placed on the side of the leg fixing seat 11 away from the shell 10, and the legs are pressed against the two rows of nursing columns 12 respectively. The crawler conveyor 14 drives the rollers 25 to perform periodic motion. When the rollers 25 pass the end of the nursing column 12 located inside the shell 10, the nursing column 12 is pushed out toward the patient's calf, dynamically adjusting the leg support pressure, promoting blood circulation, and realizing venous ulcer care. When the rollers 25 push out the nursing column 12, the pressure column 20 and the inner wall of the shell 10 jointly compress the reset spring 21. When the rollers 25 leave the nursing column 12, the reset spring 21 pushes the nursing column 12 to reset through the pressure column 20.

[0034] In the present invention, a guide arc surface 28 is provided at one end of the nursing column 12 located inside the shell 10, and limiting ears 27 are fixedly connected on both sides of the other end of the nursing column 12. When the roller 25 passes through the nursing column 12, the roller 25 rolls along the guide arc surface 28, making the ejection process of the nursing column 12 smoother, which is convenient for the patient to adapt to the pressure changes on the legs. The limiting ears 27 are located on the outside of the leg fixing seat 11, which limits the stroke of the nursing column 12 and prevents the nursing column 12 from retracting into the shell 10 when resetting.

[0035] In the present invention, both sides of the outer surface of the crawler belt of the crawler conveyor 14 are fixedly connected with a lifting and adjusting assembly, and the two lifting and adjusting assemblies are symmetrically arranged. The two rollers 25 are respectively rotatably connected to the side close to the two lifting and adjusting assemblies, and the distance between the rollers 25 and the outer surface of the crawler belt of the crawler conveyor 14 is changed by the lifting and adjusting assembly.

[0036] In the present invention, the lifting and adjusting assembly includes a conveying seat 22, a limit frame 23, a lifting seat 24, a support seat 26, a support ear 29 and a screw 30. The conveying seat 22 is fixedly connected to the outer surface of the crawler belt of the crawler conveyor 14, the limit frame 23 is fixedly connected to the middle inner wall of the conveying seat 22, the lifting seat 24 is slidably connected to the inside of the limit frame 23, the support seat 26 is in contact with the lifting seat 24, and the lifting seat 24 and the support seat 26 can slide relative to each other. The side where the support seat 26 and the lifting seat 24 are in contact with each other is set as an inclined surface. The sliding track of the lifting seat 24 is perpendicular to the sliding track of the conveying seat 22. The support ear 29 is fixedly connected to the side of the conveying seat 22 away from the crawler conveyor 14. The screw 30 is threadedly connected to the inside of the support ear 29, and the axis of the screw 30 is parallel The support base 26 is moved along a sliding track, and one end of the screw rod 30 is rotatably connected to the side surface of the support base 26. The screw rod 30 is rotated, and the threaded cooperation between the screw rod 30 and the support ear 29 converts the rotational motion into a linear displacement of the support base 26. The support base 26 and the lifting base 24 are fitted together by the inclined surface. When the screw 30 rotates, the support base 26 slides laterally, driving the lifting base 24 to move vertically along the limit of the limit frame 23, thereby changing the distance between the roller 25 and the outer surface of the crawler conveyor 14, and then changing the length of the nursing column 12 pushed out by the roller 25, adapting to different leg shapes and nursing stage requirements, and optimizing the nursing effect. The inclined surface cooperation between the support base 26 and the lifting base 24 ensures that the pressure adjustment changes linearly, avoiding excessive pressure difference before and after adjustment, which may cause discomfort to the patient.

[0037] In the present invention, a knob 31 is fixedly connected to one end of the screw 30 away from the support seat 26. The screw 30 can be rotated by the knob 31. The number of rotations of the knob 31 is linearly related to the height change of the roller 25. The operator can intuitively grasp the pressure adjustment range.

[0038] In the present invention, the middle part of the fixed leg seat 11 away from the shell 10 is fixedly connected to the shaft seat 38, and the interior of the shaft seat 38 is rotatably connected to two connecting parts 39, and the ends of the two connecting parts 39 away from each other are rotatably connected to the limit buckle 13, and the two limit buckles 13 are fixedly connected to the handle 19 on the side away from the fixed leg seat 11, and the ends of the two limit buckles 13 away from each other are fixedly connected to the pin barrel 40, and the two sides of the fixed leg seat 11 are fixedly connected to two pin seats 15, and the two pin seats 15 on the same side of the fixed leg seat 11 are respectively clamped at the two ends of adjacent pin barrels 40, and the same pin 17 is inserted into the interior of the pin barrel 40 and the two pin seats 15 on the same side of the fixed leg seat 11, and the limit buckle 13 is locked together by the pin 17 and the shaft seat 38, thereby fixing the patient's legs. When the pin 17 is pulled out from the pin barrel 40 and the pin seat 15, the medical staff can rotate the limit buckle 13 through the handle 19.

[0039] In the present invention, the two limiting buckles 13 are fixedly connected to a soft pad 18 on one side close to the leg fixing seat 11. The soft pad 18 is made of elastic material. When the limiting buckles 13 fix the legs, it buffers the pressure and avoids the obstruction of blood circulation caused by the hard structure. At the same time, it can further improve the patient's wearing comfort and reduce the risk of skin damage.

[0040] When in use, the patient sits on the seat cushion 5, with the back leaning against the back cushion 9 and the legs fixed by the leg care assembly. When the patient adjusts his sitting posture, the back pushes the back cushion 9 backwards, driving the rotating support rod 8 to rotate around the hinge point. At the same time, the rotating support rod 8 drives the piston cylinder 32 and the sliding seat 2 to slide along the slide rail 6 through the connecting rod 34. The sliding seat 2 in the sliding state drives the seat cushion 5 to move, thereby realizing the dynamic adjustment of the patient's sitting posture and leg care position, relieving the fatigue caused by long-term care and meeting the patient's leg care comfort needs. When the patient adjusts his sitting posture, the piston cylinder The relative position of 32 and the piston rod 33 changes, and the buffer spring at this time appears adaptive stretching or compression, counteracting the original movement trend of the cushion 9, thereby enhancing the support of the cushion 9 for the patient's back. This supporting state is enhanced as the angle between the cushion 9 and the piston cylinder 32 increases, preventing the angle of the cushion 9 from changing too quickly, making it easier for the patient to maintain body balance when adjusting his sitting posture and avoiding secondary injuries. The two ends of the connecting rod 34 are respectively connected to the rotating seat 36 and the piston cylinder 32 for rotation, so as to adapt to the angle change of the rotating support rod 8 when the patient adjusts his sitting posture.

[0041] The above description is only a preferred specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any technician familiar with the technical field, within the technical scope disclosed by the present invention, who makes equivalent replacements or changes based on the technical solution and inventive concept of the present invention, should be covered by the scope of protection of the present invention.

Claims

1. A lower limb venous ulcer care device, comprising a base (1), characterized in that: The top of the base (1) is fixedly connected to a slide rail (6), and the top of the slide rail (6) is slidably connected to a slide seat (2), the top of the slide seat (2) is fixedly connected to a seat cushion (5), the top of one end of the slide rail (6) is fixedly connected to a fixed support rod (7), the top of the fixed support rod (7) is hinged with a rotating support rod (8), and the side of the rotating support rod (8) close to the seat cushion (5) is fixedly connected to a cushion (9), the top of the slide seat (2) is fixedly connected to a transversely arranged piston cylinder (32), one side of the piston cylinder (32) is plugged with a piston rod (33) that can reciprocate laterally, and the piston cylinder (32) is hinged with a rotating support rod (8). A buffer spring is provided inside, one end of the piston rod (33) located inside the piston cylinder (32) is fixedly connected to the buffer spring, the other end of the piston rod (33) is fixedly connected to the side of the fixed support rod (7), the top of the piston cylinder (32) is rotatably connected to a connecting rod (34), the end of the connecting rod (34) away from the piston cylinder (32) is rotatably connected to a rotating seat (36), the bottom of the rotating support rod (8) close to the seat cushion (5) is fixedly connected to a stop rod (35), the rotating seat (36) is fixedly connected to the middle of the stop rod (35), and a leg care component is provided on the side of the base (1) away from the cushion (9).

2. A lower limb venous ulcer nursing device according to claim 1, characterized in that: The bottom end of the baffle rod (35) extends to the bottom of the rotating support rod (8), the top of the fixed support rod (7) close to the baffle rod (35) is embedded with a rubber pad (37), and the bottom of the baffle rod (35) close to the fixed support rod (7) contacts the side of the rubber pad (37).

3. A lower limb venous ulcer nursing device according to claim 1, characterized in that: The top of the sliding seat (2) is fixedly connected to a hydraulic buffer rod (3), the top of the hydraulic buffer rod (3) is fixedly connected to a seat cushion (5), the bottom of the seat cushion (5) away from the back cushion (9) is fixedly connected to a support plate (4), and the side of the support plate (4) away from the back cushion (9) is symmetrically provided with two arc-shaped grooves.

4. A nursing device for venous ulcer of lower limbs according to claim 1, characterized in that: The leg care assembly comprises a shell (10), a leg fixing seat (11), a care column (12), a crawler conveyor (14), a pressure column (20), a return spring (21) and two rollers (25). The number of the care columns (12) and the pressure columns (20) is equal and one-to-one corresponding, and the number of the pressure columns (20) and the return springs (21) is equal and one-to-one corresponding. The shell (10) is fixedly connected to the side of the base (1), the leg fixing seat (11) is fixedly connected to the outer wall of the shell (10) away from the cushion (9), and the care columns (12) are arranged in two rows and inserted into the The base of the fixed leg seat (11) is provided with one end of the nursing column (12) extending into the interior of the housing (10), the pressure column (20) is fixedly connected to one end of the nursing column (12) located inside the housing (10), the return spring (21) is fixedly connected between the nursing column (12) and the inner wall of the housing (10), the crawler conveyor (14) is fixedly connected to the inner wall of the housing (10) away from the nursing column (12), the two rollers (25) are both transversely fixed to the outer surface of the crawler of the crawler conveyor (14), and the two rollers (25) can realize axial rotation.

5. A nursing device for venous ulcer of lower limbs according to claim 4, characterized in that: One end of the nursing column (12) located inside the housing (10) is provided with a guide arc surface (28), and both sides of the other end of the nursing column (12) are fixedly connected to limiting ears (27).

6. A nursing device for venous ulcer of lower limbs according to claim 5, characterized in that: Both sides of the outer surface of the crawler belt of the crawler conveyor (14) are fixedly connected with lifting and adjusting components, and the two lifting and adjusting components are symmetrically arranged. The two rollers (25) are respectively rotatably connected to the adjacent sides of the two lifting and adjusting components.

7. A nursing device for venous ulcer of lower limbs according to claim 6, characterized in that: The lifting and adjusting assembly comprises a conveying seat (22), a limiting frame (23), a lifting seat (24), a supporting seat (26), a supporting ear (29) and a screw (30), wherein the conveying seat (22) is fixedly connected to the outer surface of the crawler of the crawler conveyor (14), the limiting frame (23) is fixedly connected to the middle inner wall of the conveying seat (22), the lifting seat (24) is slidably connected to the inside of the limiting frame (23), the supporting seat (26) is fitted with the lifting seat (24), and the lifting seat (24) and the supporting seat (26) can be To achieve relative sliding, the surfaces of the support seat (26) and the lifting seat (24) that are in contact with each other are both set as inclined surfaces, the sliding track of the lifting seat (24) is perpendicular to the sliding track of the conveying seat (22), the support ear (29) is fixedly connected to the side of the conveying seat (22) away from the crawler conveyor (14), the screw (30) is threadedly connected to the inside of the support ear (29), the axis of the screw (30) is parallel to the sliding track of the support seat (26), and one end of the screw (30) is rotatably connected to the side of the support seat (26).

8. The lower limb venous ulcer nursing device according to claim 7, characterized in that: One end of the screw rod (30) away from the support seat (26) is fixedly connected to a knob (31).

9. The lower limb venous ulcer nursing device according to claim 4, characterized in that: The middle part of the fixed leg seat (11) away from the shell (10) is fixedly connected to the shaft seat (38), and the interior of the shaft seat (38) is rotatably connected to two connecting members (39). The ends of the two connecting members (39) away from each other are rotatably connected to the limit buckle (13). The two limit buckles (13) are fixedly connected to the handle (19) on the side away from the fixed leg seat (11), and the ends of the two limit buckles (13) away from each other are fixedly connected to the pin barrel (40). Both sides of the fixed leg seat (11) are fixedly connected to two pin seats (15). The two pin seats (15) on the same side of the fixed leg seat (11) are respectively clamped to the two ends of the adjacent pin barrels (40), and the pin barrel (40) and the two pin seats (15) on the same side of the fixed leg seat (11) are plugged with the same latch (17).

10. A nursing device for venous ulcer of lower limbs according to claim 9, characterized in that: The two limiting buckles (13) are both fixedly connected with a soft pad (18) on one side close to the fixed leg seat (11).

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