Lower limb joint loosening equipment

Abstract

The lower limb joint loosening equipment comprises a trunk plate, one end of the trunk plate is rotationally connected with two thigh plates, the ends, away from the trunk plate, of the thigh plates are rotationally connected with shank plates, and thigh sliding plate units are installed at the tops of the thigh plates in a sliding mode; a shank sliding plate unit and an ankle joint sliding plate unit are slidably mounted at the top of the shank plate, the shank sliding plate unit is located between the thigh sliding plate unit and the ankle joint sliding plate unit, and a second angle adjusting assembly is mounted between the trunk plate and the bottom of the thigh plate; according to the principle of joint loosening, mechanical force acts on joints in multiple directions, the joints are separated through axial force, the traction requirement of three large joints of the two lower limbs can be met, operation is easy, operation is convenient, and operation is convenient. The technical difficulty and physical output of lower limb joint loosening techniques can be reduced, and the practicability is high.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a lower limb joint loosening device. Background Art

[0002] As a manual therapy technique, joint mobilization improves the accessory movement between the bone surfaces inside the joint by applying traction, sliding and other techniques to improve joint mobility and relieve joint mobility restriction and pain. It is clinically used to treat joint mobility restriction caused by sports injuries, muscle imbalance, orthopedic surgery, arthritis, etc.

[0003] The effects of joint mobilization are as follows:

[0004] Pain relief: When joints cannot move in full range due to swelling or pain, joint mobilization can promote the flow of synovial fluid by moving the joints, increase the nutrition of articular cartilage and avascular area of ​​cartilage disc, and thus relieve pain. At the same time, it can prevent joint degeneration caused by reduced joint activity. These are the mechanical effects of joint mobilization. The neurological effect of joint mobilization is that joint mobilization can inhibit the release of pain-causing substances in the spinal cord and brainstem, and increase the pain threshold.

[0005] Improve the range of joint motion: Animal experiments and clinical studies have found that joint immobility can cause tissue fiber hyperplasia, intra-articular adhesions, and tendon, ligament and joint capsule contractures. Joint mobilization techniques directly stretch the soft tissues around the joints. Therefore, they can maintain or increase the stretchability of the soft tissues around the joints and improve the range of joint motion.

[0006] Increase proprioceptors: Proprioceptors are located in the ligaments, tendons and joint capsules around the joints. Joint loosening can increase the sensitivity of joint proprioceptors because it directly moves the joints and stretches the ligaments, tendons and joint capsules around the joints.

[0007] Joint mobilization is a therapeutic technique that uses graded manipulations such as sliding and traction between the joint bone surfaces when the joint is in the resting position. The treatment of limited lower limb joint movement is mainly based on joint loosening and soft tissue manipulation in clinical practice. At present, when performing lower limb joint mobilization, the therapist is required to have high physical strength and skills. When using a joint loosening belt for traction, the force is difficult to control stably and the duration is short, which directly affects the relaxation effect of the joint capsule and surrounding soft tissues. Existing traction equipment for lower limb joints is not widely used, and there is a lack of therapeutic equipment specifically for single lower limb joints in clinical practice. Joint mobilization is a combination of joint separation traction, front and back sliding, and lateral sliding. The commonly used operation intensity is divided into four levels, and targeted treatment can be performed according to the different degrees of joint tension. Therefore, the applicant designs a joint loosening device for lower limbs based on the principle of joint mobilization, so that the clinical application of joint mobilization is more convenient and effective. Utility Model Content

[0008] 1. Technical problems to be solved by the utility model

[0009] In view of the shortcomings of the prior art, the purpose of the utility model is to provide a lower limb joint loosening device, aiming to solve the problem that the prior art requires high physical strength and skills of the therapist for lower limb joint loosening, making it difficult to perform joint loosening conveniently and effectively.

[0010] 2. Technical solution

[0011] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0012] A lower limb joint loosening device comprises a trunk plate, one end of the trunk plate is rotatably connected to two thigh plates, the end of the thigh plate away from the trunk plate is rotatably connected to a calf plate, a thigh skateboard unit is slidably installed on the top of the thigh plate, a calf skateboard unit and an ankle skateboard unit are slidably installed on the top of the calf plate, the calf skateboard unit is located between the thigh skateboard unit and the ankle skateboard unit, a second angle adjustment component is installed between the trunk plate and the bottom of the thigh plate, the second angle adjustment component is used to adjust the angle of the thigh plate, and a first angle adjustment component is installed between the thigh plate and the bottom of the calf plate, the first angle adjustment component is used to adjust the angle of the calf plate.

[0013] Preferably, the first angle adjustment assembly includes a first fixing plate fixedly connected to the bottom of the torso plate, a first screw rod is arranged on the top of the first fixing plate, both ends of the first screw rod are installed on the first fixing plate through a first bearing seat, a first screw rod sleeve is threadedly connected to the first screw rod, a first adjustment rod is movably hinged between the first screw rod sleeve and the calf plate, and one end of the first screw rod extends to the outside of the first fixing plate and is equipped with a first handle.

[0014] Preferably, the second angle adjustment assembly includes a second fixing plate fixedly connected to the bottom of the thigh plate, a second screw rod is arranged on the top of the second fixing plate, both ends of the second screw rod are mounted on the second fixing plate through second bearing seats, a second screw rod sleeve is threadedly connected to the second screw rod, a second adjustment rod is movably hinged between the second screw rod sleeve and the thigh plate, and one end of the second screw rod extends to the outside of the second fixing plate and is equipped with a second handle.

[0015] Preferably, connecting belts are connected between the thigh skateboard unit and the trunk board, the calf skateboard unit and the thigh skateboard unit, and the ankle skateboard unit and the calf skateboard unit, and the connecting belts can be adjusted in length or separated.

[0016] Preferably, the thigh skateboard unit includes a first skateboard slidably mounted on the top of the thigh board, both sides of the top of the first skateboard are fixedly connected with sliding rods, two groups of first pressure fixing belts are slidably connected to the two sliding rods, and two sliding seats are slidably sleeved on each of the sliding rods, and a lateral pressure airbag is fixedly connected to the top of the sliding seat, the two groups of the first pressure fixing belts are located between the two sliding seats, and both ends of the top of the first skateboard are fixedly connected with vertical pressure airbags. The calf skateboard unit has the same structure as the thigh skateboard unit, and the first skateboard of the calf skateboard unit is slidably mounted on the top of the calf board.

[0017] Preferably, the ankle joint skateboard unit comprises a second skateboard slidably mounted on the top of the calf board, a heel support pad is fixedly connected to the top of the second skateboard, and a second pressurized fixing belt is also connected to the top of the second skateboard.

[0018] Preferably, the first pressurized fixing belt includes a pressurized strip, one end of which is fixedly connected to the first slide plate, the other end of which is provided with an adhesive area, both sides of the pressurized strip along the length direction are fixedly connected with vacuum strips, a plurality of groups of anti-slip protrusions are provided on the inner side of the pressurized strip, and the second pressurized fixing belt has the same structure as the first pressurized fixing belt.

[0019] 3. Beneficial effects

[0020] Compared with the prior art, the beneficial effects of the utility model are:

[0021] The utility model is based on the principle of joint mobilization, utilizes mechanical force to act on the joint in multiple directions, separates the joint by axial force, can meet the traction requirements of the three major joints of both lower limbs, and is easy to operate; traction is performed in the joint resting position, which can increase the effect of relaxing the soft tissue around the joint during traction; lateral pressurized air bags and vertical pressurized air bags are added near the joint surface to pressurize the joint, which can complete the front-to-back direction and lateral sliding of the joint, realize the sliding and separation traction of the joint, and the effect on improving the flexibility of the joint is better than simple traction, and the joint traction can be performed at different angles at the same time, which will make the clinical application of joint mobilization simpler and more convenient, and more effectively improve the range of motion of the joint; through the arrangement of the first pressurized fixation belt and the second pressurized fixation belt, the limbs can be fixed more firmly, the traction force is more concentrated on the target joint, the technical difficulty and physical exertion of the lower limb joint loosening technique can be reduced, and the practicability is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 It is a schematic diagram of the overall first-person perspective three-dimensional structure of the lower limb joint loosening device;

[0023] Figure 2 It is a schematic diagram of the overall second-angle perspective stereoscopic structure of the lower limb joint loosening device;

[0024] Figure 3 It is a schematic diagram of the overall enlarged structure of the thigh skateboard unit;

[0025] Figure 4 It is a schematic diagram of the overall enlarged structure of the ankle joint skateboard unit;

[0026] Figure 5 It is a schematic diagram of the overall enlarged structure of the first pressurized fixing belt;

[0027] Figure 6 This is a schematic diagram of the structure of the pressurized airbag's air pressure changing with time.

[0028] In the figure: 1. torso plate; 2. thigh plate; 3. calf plate; 4. thigh skateboard unit; 41. first skateboard; 42. vertical pressurized airbag; 43. lateral pressurized airbag; 44. first pressurized fixing belt; 441. pressurizing strip; 442. anti-slip protrusion; 443. exhaust strip; 444. adhesive area; 45. slide bar; 5. calf skateboard unit; 6. ankle skateboard unit; 61. second skateboard; 62. heel support pad; 63. second pressurized fixing belt; 7. connecting belt; 8. first angle adjustment component; 81. first fixing plate; 82. first screw rod; 83. first screw rod sleeve; 84. first adjustment rod; 85. first handle; 9. second angle adjustment component; 91. second fixing plate; 92. second screw rod; 93. second screw rod sleeve; 94. second adjustment rod; 95. second handle. DETAILED DESCRIPTION

[0029] The technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, rather than all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0030] Example:

[0031] See also Figure 1-Figure 5The present embodiment provides a lower limb joint loosening device, including a trunk plate 1, a pelvic fixing belt is connected to the trunk plate 1, one end of the trunk plate 1 is rotatably connected to two thigh plates 2, the end of the thigh plate 2 away from the trunk plate 1 is rotatably connected to a calf plate 3, a thigh skateboard unit 4 is slidably installed on the top of the thigh plate 2, a calf skateboard unit 5 and an ankle skateboard unit 6 are slidably installed on the top of the calf plate 3, the calf skateboard unit 5 is located between the thigh skateboard unit 4 and the ankle skateboard unit 6, the thigh skateboard unit 4 and the trunk plate 1, the calf skateboard unit 5 and the thigh skateboard unit 4, and the ankle skateboard unit 6 and the calf skateboard A connecting belt 7 is connected between the board units 5. The connecting belt 7 includes a first belt body and a second belt body. The first belt body is provided with a plurality of fixing holes. A buckle is fixedly connected to the second belt body. The length of the connecting belt 7 can be adjusted or the connecting belt 7 can be separated by inserting the buckle into the fixing holes at different positions or detaching the buckle from the fixing hole. A second angle adjustment component 9 is installed between the torso board 1 and the bottom of the thigh board 2. The second angle adjustment component 9 is used to adjust the angle of the thigh board 2. A first angle adjustment component 8 is installed between the thigh board 2 and the bottom of the calf board 3. The first angle adjustment component 8 is used to adjust the angle of the calf board 3.

[0032] Specifically, when traction is applied to the hip joint, the patient lies supinely on the lower limb joint loosening device, the pelvis is fixed to the trunk board 1 through a pelvic fixing belt, the thigh is fixed to the thigh slide unit 4, the calf is placed on the calf slide unit 5, and the folding area between the trunk board 1 and the thigh board 2 is adjusted to the resting position of the hip joint (flexed 30 degrees, slightly abducted and externally rotated) by manipulating the second angle adjustment component 9, the connecting belt 7 between the thigh slide unit 4 and the trunk board 1 is separated, and the traction force is transmitted from the calf to the thigh by moving the thigh slide unit 4, pulling the thigh to perform axial traction of the hip joint;

[0033] When traction is applied to the knee joint, the patient lies prone on the lower limb joint loosening device, with the thigh fixed on the thigh slide unit 4 and the calf fixed on the calf slide unit 5. The folding area between the thigh board 2 and the calf board 3 is adjusted to the resting position of the knee joint (knee flexion 30 degrees) by manipulating the first angle adjustment component 8. The connecting belt 7 between the calf slide unit 5 and the thigh slide unit 4 is separated. By moving the calf slide unit 5, the traction force is pulled from the calf to perform axial traction on the knee joint.

[0034] When traction is applied to the ankle joint, the patient lies supinely on the lower limb joint loosening device, the calf is fixed to the calf board 3 via the calf slide unit 5, the foot is fixed to the ankle slide unit 6, the connecting belt 7 between the ankle slide unit 6 and the calf slide unit 5 is separated, and by moving the ankle slide unit 6, the traction force is transmitted from the foot to the calf, pulling the foot to complete ankle traction.

[0035] As an implementation method of this embodiment, Figure 1 and Figure 2As shown, the first angle adjustment component 8 includes a first fixing plate 81 fixedly connected to the bottom of the trunk plate 1, a first screw rod 82 is arranged on the top of the first fixing plate 81, both ends of the first screw rod 82 are installed on the first fixing plate 81 through a first bearing seat, a first screw rod sleeve 83 is threadedly connected to the first screw rod 82, a first adjusting rod 84 is movably hinged between the first screw rod sleeve 83 and the calf plate 3, one end of the first screw rod 82 extends to the outside of the first fixing plate 81 and is installed with a first handle 85, and the first screw rod 82 is driven to rotate by rotating the first handle 85, thereby adjusting the axial position of the first screw rod sleeve 83 on the first screw rod 82, and adjusting the supporting angle of the first adjusting rod 84 to achieve the adjustment of the angle of the calf plate 3.

[0036] As an implementation method of this embodiment, Figure 1 and Figure 2 As shown, the second angle adjustment component 9 includes a second fixing plate 91 fixedly connected to the bottom of the thigh plate 2, a second screw rod 92 is arranged on the top of the second fixing plate 91, both ends of the second screw rod 92 are installed on the second fixing plate 91 through second bearing seats, a second screw rod sleeve 93 is threadedly connected to the second screw rod 92, a second adjusting rod 94 is movably hinged between the second screw rod sleeve 93 and the thigh plate 2, one end of the second screw rod 92 extends to the outside of the second fixing plate 91 and is installed with a second handle 95, and the second screw rod 92 is driven to rotate by rotating the second handle 95, thereby adjusting the axial position of the second screw rod sleeve 93 on the second screw rod 92, and adjusting the supporting angle of the second adjusting rod 94 to achieve the adjustment of the angle of the thigh plate 2.

[0037] As an implementation method of this embodiment, Figure 3 As shown, the thigh slide unit 4 includes a first slide 41 slidably mounted on the top of the thigh plate 2, and both sides of the top of the first slide 41 are fixedly connected with slide rods 45, and two groups of first pressurized fixing belts 44 are slidably connected to the two slide rods 45. Two slide seats are also slidably sleeved on each slide rod 45, and a lateral pressurized airbag 43 is fixedly connected to the top of the slide seat. The two groups of first pressurized fixing belts 44 are located between the two slide seats, and both ends of the top of the first slide 41 are fixedly connected with vertical pressurized airbags 42. The lateral pressurized airbags 43 and the vertical pressurized airbags 42 are fixedly connected to the vertical pressurized airbags 42. The airbags 42 are connected to the air supply device, and the thigh is fixed on the first slide plate 41 through the first pressurized fixing belt 44. The lateral pressurized airbags 43 and the vertical pressurized airbags 42 are first inflated and pressurized until the airbags begin to be tense, and then continue to pressurize until the joint surfaces begin to slide, and then slowly reduce the pressure until the airbags begin to be tense. Repeat for a certain period of time, the vertical pressurized airbags 42 can complete the front-to-back sliding of the corresponding joint surface, and the lateral pressurized airbags 43 can complete the lateral sliding of the corresponding joint surface. The change of air pressure over time is shown in the figure as follows Figure 6As shown, the first pressurized fixing belt 44 and the side pressurized airbag 43 are connected to the slide rod 45 through a slide seat, and the positions of the first pressurized fixing belt 44 and the side pressurized airbag 43 can be adjusted to improve adaptability. In this embodiment, the calf skateboard unit 5 has the same structure as the thigh skateboard unit 4, and the first skateboard 41 of the calf skateboard unit 5 is slidably installed on the top of the calf board 3.

[0038] As an implementation method of this embodiment, Figure 4 As shown, the ankle joint skateboard unit 6 includes a second skateboard 61 slidably mounted on the top of the calf board 3, a heel support pad 62 is fixedly connected to the top of the second skateboard 61, and a second pressurized fixing belt 63 is also connected to the top of the second skateboard 61. The foot is fixed on the heel support pad 62 of the second skateboard 61 by the second pressurized fixing belt 63 to fix the foot.

[0039] As an implementation method of this embodiment, Figure 5 As shown, the first pressurized fixing belt 44 includes two pressurized strips 441, one end of which is sleeved on the sliding rod, and the other end of the pressurized strip 441 is provided with an adhesive area 444, and the adhesive areas 444 of the two pressurized strips 441 are hook surfaces and fur surfaces for matching the transfer, and the pressurized strips 441 are fixedly connected with air suction strips 443 on both sides along the length direction, and the air suction strips 443 are connected to the air suction equipment, and multiple groups of anti-slip protrusions 442 are provided on the inner side of the pressurized strip 441, and the second pressurized fixing belt 63 has the same structure as the first pressurized fixing belt 44, and one end of the two pressurized strips 441 of the second pressurized fixing belt 63 is fixed on the second slide plate 61, and the pressurized strips 441 are wrapped around the limbs and then connected and stabilized through the adhesive area 444, and then the air in the air suction strips 443 is extracted, so that the air suction strips 443 are pressed tightly against the limbs to further fix the limbs, and the friction with the limbs can be increased through the anti-slip protrusions 442, so that the limbs are firmly fixed.

[0040] The lower limb joint loosening device in this embodiment can meet the traction requirements of the three major joints of both lower limbs and is easy to operate; traction is performed in the resting position of the joints, which can increase the effect of relaxing the soft tissue around the joints during traction; lateral pressurization airbags 43 and vertical pressurization airbags 42 are added near the joint surfaces to increase pressure, which can complete the front-to-back and lateral sliding of the joints, and is more effective in improving joint flexibility than simple traction; through the arrangement of the first pressurization fixing belt 44 and the second pressurization fixing belt 63, the limbs can be fixed more firmly, so that the traction force is more concentrated on the target joint.

[0041] The above embodiments are preferred implementation schemes of the present invention. In addition, the present invention can also be implemented in other ways. Any obvious replacement without departing from the concept of the present technical solution is within the protection scope of the present invention.

Claims

1. A lower limb joint loosening device, characterized in that: The invention comprises a trunk plate (1), one end of the trunk plate (1) is rotatably connected to two thigh plates (2), one end of the thigh plate (2) away from the trunk plate (1) is rotatably connected to a calf plate (3), a thigh skateboard unit (4) is slidably mounted on the top of the thigh plate (2), a calf skateboard unit (5) and an ankle skateboard unit (6) are slidably mounted on the top of the calf plate (3), the calf skateboard unit (5) is located between the thigh skateboard unit (4) and the ankle skateboard unit (6), a second angle adjustment component (9) is installed between the trunk plate (1) and the bottom of the thigh plate (2), the second angle adjustment component (9) is used to adjust the angle of the thigh plate (2), and a first angle adjustment component (8) is installed between the thigh plate (2) and the bottom of the calf plate (3), the first angle adjustment component (8) is used to adjust the angle of the calf plate (3).

2. A lower limb joint loosening device according to claim 1, characterized in that: The first angle adjustment assembly (8) comprises a first fixing plate (81) fixedly connected to the bottom of the trunk plate (1); a first screw rod (82) is arranged on the top of the first fixing plate (81); both ends of the first screw rod (82) are mounted on the first fixing plate (81) via a first bearing seat; a first screw rod sleeve (83) is threadedly connected to the first screw rod (82); a first adjustment rod (84) is movably hinged between the first screw rod sleeve (83) and the calf plate (3); one end of the first screw rod (82) extends to the outside of the first fixing plate (81) and is mounted with a first handle (85).

3. A lower limb joint loosening device according to claim 1, characterized in that: The second angle adjustment assembly (9) comprises a second fixing plate (91) fixedly connected to the bottom of the thigh plate (2); a second screw rod (92) is arranged on the top of the second fixing plate (91); both ends of the second screw rod (92) are mounted on the second fixing plate (91) via a second bearing seat; a second screw rod sleeve (93) is threadedly connected to the second screw rod (92); a second adjustment rod (94) is movably hinged between the second screw rod sleeve (93) and the thigh plate (2); one end of the second screw rod (92) extends to the outside of the second fixing plate (91) and is provided with a second handle (95).

4. The lower limb joint loosening device according to claim 1, characterized in that: A connecting belt (7) is connected between the thigh skateboard unit (4) and the trunk board (1), between the calf skateboard unit (5) and the thigh skateboard unit (4), and between the ankle skateboard unit (6) and the calf skateboard unit (5); the connecting belt (7) can be adjusted in length or separated.

5. The lower limb joint mobilization device according to claim 1, characterized in that: The thigh slide unit (4) comprises a first slide (41) slidably mounted on the top of the thigh board (2), the first slide (41) having two slide bars (45) fixedly connected to both sides of the top, two sets of first pressure fixing belts (44) slidably connected to the two slide bars (45), each of the slide bars (45) also having two slide seats slidably sleeved thereon, the top of the slide seat being fixedly connected to a lateral pressure air bag (43), the two sets of the first pressure fixing belts (44) being located between the two slide seats, the top of the first slide (41) having two fixedly connected vertical pressure air bags (42), the calf slide unit (5) having the same structure as the thigh slide unit (4), the first slide (41) of the calf slide unit (5) being slidably mounted on the top of the calf board (3).

6. A lower limb joint loosening device according to claim 5, characterized in that: The ankle joint slide plate unit (6) comprises a second slide plate (61) slidably mounted on the top of the calf plate (3), the top of the second slide plate (61) being fixedly connected to a heel support pad (62), and the top of the second slide plate (61) being also connected to a second pressure fixing belt (63).

7. A lower limb joint loosening device according to claim 6, characterized in that: The first pressurized fixing belt (44) comprises a pressurized strip (441), one end of which is fixedly connected to the first slide plate (41), and the other end of which is provided with an adhesive area (444). Both sides of the pressurized strip (441) along the length direction are fixedly connected with air extraction strips (443), and a plurality of groups of anti-slip protrusions (442) are provided on the inner side of the pressurized strip (441). The second pressurized fixing belt (63) has the same structure as the first pressurized fixing belt (44).

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