Ankle pump movement auxiliary device

Abstract

The utility model discloses an ankle pump movement auxiliary device which comprises a support, a bend with an included angle opening facing downwards is formed at the top of the support, a base portion used for supporting is formed at the bottom of the support, a rotating shaft is arranged in the middle of the support, a foot support is connected to the rotating shaft, and the foot support rotates relatively with the rotating shaft as the center. The simple structure that the support is combined with the rotating shaft and the foot support is adopted, the complete device for ankle pump training is formed, compared with existing special equipment, the structural complexity, the occupied size and the weight of the device are greatly optimized, the support can be directly arranged on a guardrail at the tail of a hospital bed in a hospital area due to the bending structural design, and the device is convenient to use. Even if the bed surface is uneven, stable supporting and positioning of the whole device can be achieved through the guardrails, meanwhile, a patient does not need to move the position, the patient only needs to place the feet after the device is arranged, and the convenience of the arrangement mode and the use mode of the device is greatly improved through the design.

Description

Technical Field

[0001] The utility model belongs to the technical field of rehabilitation training and relates to an ankle pump exercise auxiliary device. Background Art

[0002] Ankle pump exercise is currently a simple, easy-to-learn and effective measure to prevent lower extremity deep vein thrombosis. Lower extremity deep vein thrombosis (LEDVT) refers to the abnormal coagulation of blood in the deep veins of the lower extremities, which blocks the blood vessels and causes venous reflux obstruction. It is a common clinical surgical complication.

[0003] There are usually three ways to perform ankle pump exercises on patients. The first is the patient's own active movement, the second is the manual assisted movement provided by others, and the third is to use special ankle pump training equipment. Patients who need ankle pump exercise rehabilitation are usually bedridden for a long time and have difficulty in moving. The first and second methods have their disadvantages, including but not limited to the difficulty for patients to move in place, the ankle pump exercise assisted by others has a certain degree of professionalism and requires the participation of nursing staff, and nursing staff resources are scarce in actual situations. For the third special ankle pump training equipment, although some existing products of this type can actively guide patients' training movements during use, their setting method is The portability of the type and usage is still an unresolved problem. For example, in the actual scenario of our hospital, there are large-scale special instruments in the form of elliptical machines, or devices such as those disclosed in Chinese utility model patent CN216570731U, etc. These devices need to be specially set up to ensure stable and spacious conditions. When using these devices for training, patients are often required to leave their beds and go to special training rooms. This obviously brings great difficulty and inconvenience to patients with limited mobility, and also increases the workload of medical staff. The inconvenience of use also makes it difficult to popularize such equipment, and the hospital is poorly equipped and cannot meet the needs of multiple patients. Utility Model Content

[0004] In order to overcome the deficiencies of the prior art, the utility model provides an ankle pump exercise auxiliary device.

[0005] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0006] An ankle pump exercise assisting device comprises a bracket, the top of the bracket is formed with a bend with an angle opening facing downward, the bottom of the bracket forms a base portion for support, a rotating shaft is arranged in the middle of the bracket, a foot rest is connected to the rotating shaft, and the foot rest relatively rotates around the rotating shaft.

[0007] Furthermore, it also includes a tension spring and a traction rope, wherein two ends of the tension spring are respectively connected to the bottom of the foot rest and the base, and two ends of the traction rope are respectively connected to the top of the foot rest and the middle of the bracket.

[0008] Furthermore, the rotating shaft is a linear shaft structure.

[0009] Furthermore, the rotating shaft is a special-shaped shaft structure, and the rotating shaft includes a main shaft and an offset shaft, and the axis of the offset shaft is inclined to form a set angle compared to the axis of the main shaft.

[0010] Furthermore, the footrest is detachably connected to the rotating shaft, and a slot for passing the rotating shaft is provided on the footrest, and a notch is formed on the slot.

[0011] Furthermore, it also includes a pressure rod, and guide rods are radially arranged at both ends of the pressure rod, and the two guide rods are respectively hinged to the two sides of the middle part of the bracket, and the guide rod is against the middle part of the traction rope. A first rocker is passed through one side of the middle part of the bracket, and the first rocker is connected to one of the guide rods.

[0012] Furthermore, a second rocker is provided in the middle of the bracket, and the second rocker is fixedly connected to one end of the rotating shaft in the axial direction.

[0013] Furthermore, a strap is provided on the footrest.

[0014] Furthermore, a first crossbeam is provided on the base portion, and the first crossbeam is fixedly connected to the base portion by bolts. The base portion is provided with a plurality of mounting holes for passing the bolts, and one end of the tension spring is connected to the first crossbeam.

[0015] In summary, the utility model is beneficial in that:

[0016] The utility model adopts a simple structure of a bracket combined with a rotating shaft and a footrest to form a complete device for ankle pump training. Its structural complexity, occupied volume and weight are greatly optimized compared with existing special equipment, and the bending structure design of its bracket can be directly set on the guardrail at the end of the general hospital bed in the hospital. Even if the bed surface is uneven, the guardrail can be used to achieve stable support and positioning of the entire device. At the same time, there is no need for the patient to move, and only the feet need to be placed after the device is set up. This design greatly improves the convenience of setting up and using the device; further, a manual mechanism is provided, so that the device can be used with the help of others to assist the patient in ankle pump exercises. The driving method of the manual mechanism is simple and reliable, and can be achieved by operating the joystick only by the patient's relatives, without increasing the workload of medical staff; and the movement mode of the ankle pump can switch between toe flexion and dorsiflexion and joint rotation according to the different rotating shafts, which fully includes the movement requirements required for ankle pump rehabilitation. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of the utility model.

[0018] Figure 2 for Figure 1 Schematic diagram of the structure from another perspective.

[0019] Figure 3 for Figure 1 Schematic diagram of the cross-section structure in.

[0020] Figure 4 for Figure 3 The schematic diagram of the structure during toe flexion is shown in FIG.

[0021] Figure 5 for Figure 1 Schematic diagram of the structure when the rotating shaft adopts a special-shaped shaft.

[0022] Figure 6 for Figure 5 Schematic diagram of the structure of the middle foot support and the special-shaped shaft part.

[0023] Figure 7 It is a schematic diagram of the structure of the footrest.

[0024] Markings in the figure: 11, first frame; 12, second frame; 2, foot rest; 21, slot; 31, linear axis; 32, special-shaped axis; 321, main axis; 322, offset axis; 4, tension spring; 41, first crossbeam; 5, traction rope; 51, second crossbeam; 52, pressure rod; 53, guide rod; 61, first rocker; 62, second rocker. DETAILED DESCRIPTION

[0025] The following describes the implementation of the present invention through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through other different specific implementations, and the details in this specification can also be modified or changed in various ways based on different viewpoints and applications without departing from the spirit of the present invention. It should be noted that the following embodiments and features in the embodiments can be combined with each other without conflict.

[0026] It should be noted that the illustrations provided in the following embodiments are only schematic illustrations of the basic concept of the present invention, and thus the drawings only show components related to the present invention rather than being drawn according to the number, shape and size of components in actual implementation. In actual implementation, the type, quantity and proportion of each component may be changed arbitrarily, and the component layout may also be more complicated.

[0027] All directional indications in the embodiments of the present invention (such as up, down, left, right, front, back, horizontal, vertical...) are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indication will also change accordingly.

[0028] Due to installation errors and other reasons, the parallel relationship referred to in the embodiments of the present invention may actually be an approximately parallel relationship, and the vertical relationship may actually be an approximately vertical relationship.

[0029] The utility model provides an ankle pump exercise assisting device, which can be applied to the prevention or rehabilitation of lower limb deep vein thrombosis, which is common in patients after surgery, tumors, fractures, long-term bed rest or long-term immobilization.

[0030] Reference Figure 1 and Figure 2 As shown, the ankle pump exercise assisting device includes a bracket, and the bracket is divided into a base portion, a middle portion and a hook portion from bottom to top. The base portion is horizontally arranged, and the base portion is used to support the entire bracket on various planes, including the support of the bed surface. The middle portion is connected to one end of the base portion, and the middle portion is inclined upward and forms a set angle with the base portion. The hook portion is arranged at the top of the middle portion and forms a bend with a set angle with the middle portion, and the opening of the bent angle faces downward. In the existing general hospital bed structure, the tail portion of the hospital bed is usually provided with a guardrail of a set height, and then when the bracket is set, the bend of the hook portion cooperates with the top of the guardrail of the hospital bed, so as to relatively form a limit and a certain support for the bracket in the horizontal and vertical directions. Similarly, the base portion is partially or fully supported on the bed surface of the hospital bed, thereby realizing the support and positioning of the entire bracket, and ensuring that it is stably arranged at the tail portion of the hospital bed.

[0031] Specifically, the bracket in this embodiment includes a first frame 11 and a second frame 12 that are arranged parallel to each other, and a plurality of connecting rods are horizontally arranged between the first frame 11 and the second frame 12. The two ends of the connecting rods are respectively fixedly connected to the first frame 11 and the second frame 12 by bolts or the like to form a stable bracket as a whole with the first frame 11 and the second frame 12.

[0032] A rotating shaft is disposed in the middle of the bracket. The rotating shaft is horizontally disposed between the first frame 11 and the second frame 12 . Both ends of the rotating shaft in the axial direction are connected to the first frame 11 and the second frame 12 , respectively.

[0033] Two foot rests 2 are arranged on the rotating shaft, and the foot rests 2 are used to match and be fixed to the patient's feet. Straps are arranged on the peripheral sides of the foot rests 2, and the foot rests 2 are fitted to the soles of the patient's feet to achieve matching, and then the straps are passed around the back of the patient's feet and fixed to the foot rests 2, thereby fixing the position of the foot rests 2 and the patient's feet.

[0034] The rotating shaft passes through the footrest 2 , and the footrest 2 can rotate relatively around the axis of the rotating shaft. The rotating shaft is used to support the weight of the footrest 2 and the patient's foot and limit the rotation direction of the footrest 2 .

[0035] In some embodiments, when the rotating shaft is set as a linear shaft 31 structure, the plane of the rotation direction of the footrest 2 is formed to be perpendicular to the axis of the rotating shaft. Therefore, when the patient's foot reciprocates in the rotation direction of the footrest 2, the toe flexion and dorsiflexion of the patient's foot joint is achieved. Figure 3 and Figure 4 .

[0036] In some other embodiments, when the rotating shaft is set as a special-shaped shaft 32 structure, specifically, the rotating shaft is in the form of a main shaft 321 arranged in a horizontal and transverse straight line, and two offset shafts 322 arranged in the middle of the main shaft 321, and the two offset shafts 322 are respectively used to pass through two foot rests 2, and the axis of the offset shaft 322 forms a set angle with the axis of the main shaft 321, thereby presenting a offset effect, and the foot rest 2 can rotate relative to the axis of the offset shaft 322 as the center. When the rotating shaft is driven to rotate, the offset between the offset shaft 322 and the main shaft 321 will cause the foot rest 2 to perform an eight-shaped swinging motion in the left and right, front and back directions within a certain range, thereby realizing a joint wrap-around motion for the patient's foot, refer to Figure 5 and Figure 6 .

[0037] In the above two embodiments, when the rotating shaft is a linear shaft 31 or a special-shaped shaft 32, the footrest 2 is detachably connected to the rotating shaft. Figure 7 A slot 21 is provided on the rear side of the footrest 2. The slot 21 is axially cylindrical and is through-set. A notch is provided on the peripheral wall of the slot 21. The notch is also axially through-set so that the shaft can pass through the notch and enter the slot 21. When the shaft completely enters the slot 21, the shaft and the slot 21 are coaxial, so that the footrest 2 can rotate relative to the shaft. When the shaft is a linear shaft 31, the slot 21 can be installed at any position on the shaft, or a flange can be provided on the linear shaft 31 to limit the installation position of the slot 21. When the shaft is a special-shaped shaft 32, the slot 21 is installed with the offset shaft 322.

[0038] Furthermore, the width of the slot is set to be smaller than the diameter of the rotating shaft, and the foot rest 2 or the slot 21 can be made of a material with a certain elasticity such as plastic or resin. When the slot 21 and the rotating shaft are installed, a certain force is applied to cause the slot to deform so that the rotating shaft can enter, and the slot is restored after the rotating shaft enters. Through the above-mentioned setting, while ensuring the function of detachable connection, the foot rest 2 and the rotating shaft are effectively prevented from being easily separated during use.

[0039] In order to maintain the posture of the footrest 2, the ankle pump exercise auxiliary device in the utility model is also provided with a balancing structure, which includes a tension spring 4, one end of which is connected to the bottom of the footrest 2, and the other end is connected to the base of the bracket. Specifically, a first cross beam 41 is provided on the base, and the two ends of the first cross beam 41 are respectively fixedly connected to the first frame 11 and the second frame 12, and the other end of the tension spring 4 is connected to the first cross beam 41, and the tension spring 4 generates a certain pulling force on the bottom of the footrest 2; a second cross beam 51 is provided in the middle part, and the two ends of the second cross beam 51 are respectively fixedly connected to the first frame 11 and the second frame 12, and a traction rope 5 is provided between the second cross beam 51 and the footrest 2, and the two ends of the traction rope 5 are respectively fixedly connected to the second cross beam 51 and the top of the footrest 2, thereby limiting the distance between the top of the footrest 2 and the second cross beam 51, and the position where the traction rope 5 is connected to the top of the footrest 2 and the position where the tension spring 4 is connected to the bottom of the footrest 2 are respectively located on the opposite sides of the position where the footrest 2 is connected to the rotating shaft.

[0040] The tension applied to the foot rest 2 by the tension spring 4 causes the foot rest 2 to straighten the traction rope 5. At this time, the patient's foot steps on the foot rest 2 to perform a toe flexion action, which will lengthen the tension spring 4, thereby increasing the resistance to the toe flexion action and increasing the force effect of the patient's foot. When the patient stops exerting force, the foot rest 2 will rebound and reset due to the tension of the tension spring 4, and the stroke during the reset process will drive the dorsiflexion action of the foot.

[0041] By replacing the specifications of the tension spring 4, or adjusting the installation position of the first cross beam 41 on the base, adjusting its spacing compared to the foot rest 2, thereby adjusting the tension applied to the foot rest 2, the above two methods can both achieve the effect of increasing or decreasing the resistance to toe flexion by adjusting the tension of the tension spring 4, thereby adjusting the force requirement of the patient's foot.

[0042] Both ends of the first cross beam 41 are fixedly connected to the first frame 11 and the second frame 12 by bolts. The first frame 11 and the second frame 12 are respectively provided with a plurality of mounting holes for passing bolts, so that the first cross beam 41 can be adjusted to be installed at different distances relative to the foot rest 2.

[0043] By adjusting the length of the traction rope 5, the initial angle of the foot rest 2 under the balanced action of the tension spring 4 and the traction rope 5 can be adjusted, and the length of the traction rope 5 can be increased to tilt the foot rest 2 toward one side of the patient's foot, thereby increasing the intensity of the foot dorsiflexion movement driven by the foot rest 2 during the rebound and reset process.

[0044] When the patient's foot is fixed in the position of the foot rest 2, the patient can use his own strength to drive his foot to move autonomously along the range of motion of the foot rest 2. The patient does not need to move his body, and only needs others to set the ankle pump exercise auxiliary device at the end of the bed, so that the patient can perform ankle pump exercise in a lying position.

[0045] It is common that when patients find it difficult to control their foot movements autonomously, it is very difficult for them to drive the ankle pump exercise assisting device to perform ankle pump exercise by themselves. Therefore, further, in this embodiment, a manual mechanism for actively driving the foot rest 2 to move is also provided in the ankle pump exercise assisting device.

[0046] The manual mechanism includes a pressure rod 52, which is horizontally arranged. Guide rods 53 are respectively provided at both ends of the pressure rod 52 in the axial direction and extend along the same radial direction, so that the two guide rods 53 are parallel. The ends of the two guide rods 53 are respectively hinged to the first frame 11 and the second frame 12. It also includes a first rocker arm 61, which is passed through the first frame 11 or the second frame 12 and is connected to a corresponding one of the guide rods 53, and the connection position is in the axial direction of the hinge axis of the guide rod 53 and the bracket.

[0047] When the first rocker 61 is rotated, the pressure rod 52 can be driven to rotate synchronously. During the process of the pressure rod 52 rotating toward one side of the traction rope 5, the pressure rod 52 is against the upper middle part of the traction rope 5 and pushes the deformation of the traction rope 5 downward, thereby generating a pulling force on the top of the foot rest 2 to drive the foot rest 2 to move. Preferably, when the rotating shaft is a linear shaft 31, the pulling of the traction rope 5 on the foot rest 2 realizes the toe flexion action of the foot rest 2 on the patient's foot, and the rotation of the first rocker 61 can be a reciprocating swing within a set range.

[0048] Furthermore, when the rotating shaft is a special-shaped shaft 32, a second rocker arm 62 is further provided at one axial end of the special-shaped shaft 32. By rotating the second rocker arm 62, the special-shaped shaft 32 can be driven to rotate, so that through the rotational coordination relationship between the special-shaped shaft 32 and the foot rest 2, the foot rest 2 is driven to perform an eight-shaped swinging motion in the left and right, front and back directions, thereby realizing the foot rest 2 surrounding the joint of the patient's foot. The rotation of the second rocker arm 62 can be a continuous rotation of a whole circle.

[0049] By setting the manual mechanism, the driving support for the patient's foot ankle pump movement can be achieved by operating the manual mechanism by someone other than the patient, especially by a caregiver or family member.

[0050] Obviously, the described embodiments are only some embodiments of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

Claims

1. An ankle pump exercise assisting device, characterized in that: The invention comprises a bracket, the top of the bracket is formed with a bend with an angle opening facing downward, the bottom of the bracket forms a base portion for support, a rotating shaft is arranged in the middle of the bracket, a footrest (2) is connected to the rotating shaft, and the footrest (2) rotates relatively with the rotating shaft as the center.

2. An ankle pump exercise assisting device according to claim 1, characterized in that: It also includes a tension spring (4) and a traction rope (5), wherein the two ends of the tension spring (4) are respectively connected to the bottom of the foot rest (2) and the base, and the two ends of the traction rope (5) are respectively connected to the top of the foot rest (2) and the middle of the bracket.

3. An ankle pump exercise assisting device according to claim 2, characterized in that: The rotating shaft is a linear shaft (31) structure.

4. The ankle pump exercise assisting device according to claim 2, characterized in that: The rotating shaft is a special-shaped shaft (32) structure, and the rotating shaft comprises a main shaft (321) and a dislocated shaft (322), and the axis of the dislocated shaft (322) is inclined to form a set angle compared to the axis of the main shaft (321).

5. An ankle pump exercise assisting device according to claim 3 or 4, characterized in that: The footrest (2) is detachably connected to the rotating shaft. The footrest (2) is provided with a slot (21) for passing the rotating shaft, and a notch is provided on the slot (21).

6. The ankle pump exercise assisting device according to claim 3, characterized in that: It also includes a pressure rod (52), and guide rods (53) are respectively arranged at both ends of the pressure rod (52) in the radial direction. The two guide rods (53) are respectively hinged to the two sides of the middle part of the bracket, and the guide rod (53) is against the middle part of the traction rope (5). A first rocker (61) is passed through one side of the middle part of the bracket, and the first rocker (61) is connected to one of the guide rods (53).

7. The ankle pump exercise assisting device according to claim 4, characterized in that: A second rocker (62) is also provided in the middle of the bracket, and the second rocker (62) is fixedly connected to one end of the rotating shaft in the axial direction.

8. The ankle pump exercise assisting device according to claim 1, characterized in that: The footrest (2) is provided with a binding strap.

9. The ankle pump exercise assisting device according to claim 2, characterized in that: The base portion is also provided with a first crossbeam (41), the first crossbeam (41) is fixedly connected to the base portion by bolts, the base portion is provided with a plurality of mounting holes for passing the bolts, and one end of the tension spring (4) is connected to the first crossbeam (41).

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