Rehabilitation training device based on achilles tendon contracture

Abstract

The invention relates to a rehabilitation training device based on achilles tendon contracture. The rehabilitation training device comprises a lower limb brace, a rotating base, a connecting base fixedly arranged on the rotating base, a first through hole fixedly formed in the rotating base, a placing plate rotationally arranged on the first through hole, a fixing mechanism arranged on the placing plate and a training mechanism arranged on the rotating base. The training mechanism comprises resistance adjusting assemblies which are symmetrically arranged on the rotating base and the placing plate, and locking assemblies which are symmetrically arranged on the placing plate; the achilles tendon fixing function in the initial treatment rehabilitation stage of the patient and the rehabilitation training function in the middle and later periods are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a rehabilitation training device based on Achilles tendon contracture. Background Art

[0002] Achilles tendon contracture occurs when the Achilles tendon loses its normal length after prolonged immobilization due to factors such as fractures, tendon ruptures, and neurological damage. This condition results from changes in the length, loss of flexibility, and mobility of soft tissues such as muscles and ligaments. Contracture can significantly impact a patient's function and abilities, causing pain and discomfort, and hindering cleanliness and care. Severe contractures are difficult to treat and require early prevention. Achilles tendon contractures can prevent the heel from contacting the ground when walking, limiting ankle dorsiflexion, severely impacting function, and causing significant pain.

[0003] The existing device for preventing Achilles tendon contracture is a T-shoe, which can fix the position of the foot and thus keep the Achilles tendon in a certain stretched state. However, this method can only prevent the Achilles tendon from completely contracting and cannot avoid the problem of decreased Achilles tendon mobility. If the Achilles tendon is kept in a fixed state for a long time, the elasticity of the Achilles tendon will decrease, resulting in a decrease in the patient's foot movement angle. Therefore, a rehabilitation trainer based on Achilles tendon contracture is needed to achieve the functions of Achilles tendon fixation and rehabilitation training. Summary of the Invention

[0004] The content of this application is used to briefly introduce concepts that will be described in detail in the detailed description section below. The content of this application is not intended to identify key features or essential features of the technical solution for which protection is sought, nor is it intended to limit the scope of the technical solution for which protection is sought.

[0005] In order to solve the technical problems mentioned in the above background technology section, some embodiments of the present application provide a rehabilitation trainer based on Achilles tendon contracture, including a lower limb brace, a rotating base, a connecting base fixed on the rotating base, a first through hole fixed on the rotating base, a placement plate rotatably arranged on the first through hole, a fixing mechanism arranged on the placement plate, and a training mechanism arranged on the rotating base; the training mechanism includes a resistance adjustment component symmetrically arranged on the rotating base and the placement plate, and a locking component symmetrically arranged on the placement plate.

[0006] Specifically, the fixing mechanism includes a first rotating shaft fixed on the placement plate, a strap rotatably sleeved on the first rotating shaft, a first rack fixed on the strap, and a locking assembly fixed on the other side of the placement plate.

[0007] Specifically, the lock assembly includes a locking seat fixed on the placement plate, a first through groove fixed on the locking seat, a second rack fixed on the locking seat, a plurality of first sliding grooves symmetrically fixed on the locking seat, a first pressure plate sliding on the first sliding groove, a plurality of first springs with one end fixed on the first pressure plate and the other end fixed on the locking seat, a plurality of first connecting rods fixed on the first pressure plate and penetrating the locking seat, and a second pressure plate fixed at the other end of the first connecting rod.

[0008] Specifically, the resistance adjustment assembly includes a second rotating shaft fixed on the placement plate, a plurality of third sliding grooves fixed on the rotating base, a first slider symmetrically fixed on the second rotating shaft and sliding along the third sliding groove, a resistance fixing device provided on the rotating base, a first resistance device provided on the rotating base, and a second resistance device provided on the rotating base.

[0009] Specifically, the resistance fixing device includes a plurality of fixing grooves fixed on the rotating base, an adjusting ring rotatably arranged on the rotating base, a first bracket fixed on the adjusting ring, a fourth sliding groove fixed on the first bracket, a locking block slidingly arranged on the fourth sliding groove and the fixed groove, a second spring with one end fixed on the locking block and the other end fixed on the adjusting ring, a first gear symmetrically rotatably sleeved on the rotating base, and a second gear symmetrically rotatably arranged on the rotating base.

[0010] Specifically, the first resistance device includes a fifth slide groove symmetrically fixed on the rotating base, a first slide slide slidably arranged on the fifth slide groove and fixedly connected to the adjustment ring, a second slide slide slidably arranged on the third slide groove, and a first spring telescopic rod with one end fixed on the first slide and the other end fixed on the second slide.

[0011] Specifically, the second resistance device includes a plurality of sixth slide grooves fixed on the rotating base, a third slide slide slidably arranged on the sixth slide groove and connected to the first gear, a fourth slide slide slidably arranged on the third slide groove, and a second spring telescopic rod with one end fixed on the third slide and the other end fixed on the fourth slide.

[0012] Specifically, the locking assembly includes a plurality of first slots fixed on the second rotating shaft, a plurality of second slots fixed on the rotating base, a locking ring slidably arranged on the second rotating shaft, and a plurality of locking rods fixed on the locking ring and capable of sliding along the first slots and the second slots.

[0013] The beneficial effects of the present invention are:

[0014] (1) The existing rehabilitation trainer adopts an elastic band fixing method. This fixing method will cause the instep of the patient's foot to first drive the elastic band to stretch, and the elastic band will then drive the trainer to rotate, resulting in the resistance set by the trainer being different from the resistance actually received by the patient. The present invention uses a strap and rack fixing method. The strap cannot be stretched. When fixing, the strap is wrapped around the instep of the patient's foot, and the first rack is inserted into the gap between the second pressure plate and the second rack. After the first rack is inserted, the first pressure plate will be squeezed open, and the first spring will be compressed, thereby causing the first pressure plate to push the first rack and the second rack to engage. The engagement of the first rack and the second rack ensures that the strap will not fall off; when it needs to be untied, push the second pressure plate to disengage the first pressure plate from the first rack, and pull the first rack out of the first through slot; ensuring that the resistance received by the patient's foot when moving is the same as the resistance set by the trainer.

[0015] (2) There are multiple resistance range adjustments. When the patient moves his foot, the placement plate will rotate on the first through hole, and then the second shaft and the first slider will rotate. The second slider will push the second slide plate to rotate, so that the first spring telescopic rod is compressed, thereby generating resistance. The greater the rotation angle, the greater the resistance. That is, the resistance the patient receives when moving is a range, not a fixed value. The patient does not need to adjust the resistance range during the initial rehabilitation training. During the training, the patient can continuously try to move at a larger angle. When the placement plate can be easily rotated to the maximum angle, that is, the resistance range at this time is not difficult for the patient, then the initial resistance size can be adjusted to further adjust the resistance size during the patient's movement, which plays a step-by-step role and improves the rehabilitation training effect. When the adjustment ring is rotated, the adjustment ring drives the other end of the first spring telescopic rod to move through the first slide plate, so that the first spring telescopic rod is pre-compressed. At this time, when the patient is moving, the initial resistance will increase. During the patient's rehabilitation training, different resistances can be adjusted to improve the rehabilitation training effect.

[0016] (3) Combine Achilles tendon fixation and rehabilitation training. When the locking rod is inserted into the first slot and the second slot, the placement plate cannot rotate. When the first slot and the second slot are aligned, the angle between the placement plate and the lower limb brace is 90°, which fixes the patient's Achilles tendon. When the locking ring and the locking rod are pulled outward, the placement plate can rotate and the patient can perform rehabilitation training. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] The drawings constituting a part of this application are used to provide a further understanding of this application and make other features, purposes and advantages of this application more apparent. The drawings and descriptions of the exemplary embodiments of this application are used to explain this application and do not constitute an improper limitation on this application.

[0018] In addition, throughout the drawings, the same or similar reference numerals represent the same or similar elements. It should be understood that the drawings are schematic and that the elements and components are not necessarily drawn to scale.

[0019] In the attached figure:

[0020] Figure 1 It is a structural schematic diagram of the present invention;

[0021] Figure 2 A top view of a portion of the structure of the present invention;

[0022] Figure 3 for Figure 2 Line section of AA in the middle;

[0023] Figure 4 for Figure 3 A partial enlarged view of point B in the middle;

[0024] Figure 5 for Figure 2 Linear section of CC;

[0025] Figure 6 for Figure 5 A partial enlarged view of point D in the middle;

[0026] Figure 7 for Figure 2 Linear section of EE;

[0027] Figure 8 for Figure 7 A partial enlarged view of point F in the middle;

[0028] Figure 9 for Figure 2 Linear section of GG. DETAILED DESCRIPTION

[0029] Embodiments of the present disclosure will be described in more detail below with reference to the accompanying drawings. Although certain embodiments of the present disclosure are shown in the accompanying drawings, it should be understood that the present disclosure can be implemented in various forms and should not be construed as limited to the embodiments described herein. Rather, these embodiments are provided to provide a more thorough and complete understanding of the present disclosure. It should be understood that the drawings and embodiments of the present disclosure are for illustrative purposes only and are not intended to limit the scope of protection of the present disclosure.

[0030] It should also be noted that, for ease of description, only the parts related to the invention are shown in the drawings. In the absence of conflict, the embodiments and features in the embodiments of the present disclosure may be combined with each other.

[0031] It should be noted that the concepts of "first" and "second" mentioned in this disclosure are only used to distinguish different devices, modules or units, and are not used to limit the order or interdependence of the functions performed by these devices, modules or units.

[0032] It should be noted that the modifications of "one" and "multiple" mentioned in the present disclosure are illustrative rather than restrictive, and those skilled in the art should understand that unless otherwise clearly indicated in the context, they should be understood as "one or more".

[0033] The present disclosure will be described in detail below with reference to the accompanying drawings and in conjunction with embodiments.

[0034] Reference Figures 1-9 As shown, the rehabilitation training device based on Achilles tendon contracture described in the present invention includes a lower limb brace 1, a rotating base 2, a connecting base 3 fixed on the rotating base, a first through hole 4 fixed on the rotating base, a placement plate 7 rotatably arranged on the first through hole, a fixing mechanism 5 arranged on the placement plate, and a training mechanism 6 arranged on the rotating base; the training mechanism includes a resistance adjustment component 61 symmetrically arranged on the rotating base and the placement plate, and a locking component 62 symmetrically arranged on the placement plate; the lower limb brace is existing technology and can be purchased from the market; the rotating base is in contact with the ground; the connecting base is used to connect the rotating base and the lower limb brace, and the connecting base is provided with a groove to which the lower limb brace can be inserted; the placement plate is used to support the patient's foot, and a soft cushion layer can be laid on the placement plate to avoid greater pressure on the patient's foot skin and thus pressure sores; the fixing mechanism is used to fix the patient's foot; the resistance adjustment component can adjust the resistance the patient receives during activity, thereby realizing the function of rehabilitation training; the locking component is used to lock the placement plate so that the placement plate cannot rotate, thereby realizing the function of fixing the Achilles tendon;

[0035] It also includes a shock wave generating module arranged on the placement board, the shock wave module includes a shock wave generator fixed on the placement board, a shock wave therapy head fixed on the placement board, a control panel arranged on the rotating base, and a control circuit connecting the control panel and the shock wave generator; the shock wave generator is arranged inside the placement board; the shock wave therapy head contacts the patient's foot; the control panel and the control circuit are used to control the shock wave generator to generate shock waves.

[0036] Specifically, the fixing mechanism includes a first rotating shaft 51 fixed on the placement plate, a strap 52 rotatably mounted on the first rotating shaft, a first rack 53 fixed on the strap, and a locking assembly 54 fixed on the other side of the placement plate; the strap is not elastic; the first rack cooperates with the locking assembly to fix the patient's foot on the placement plate, so that the patient's foot can always fit in with the placement plate when the patient moves; the first rack is a soft rack and can bend slightly.

[0037] Specifically, the lock assembly includes a locking seat 541 fixed on the placement plate, a first through slot 542 fixed on the locking seat, a second rack 543 fixed on the locking seat, a plurality of first sliding slots 544 symmetrically fixed on the locking seat, a first pressure plate 545 slidably arranged on the first sliding slot, a plurality of first springs 546 fixed at one end on the first pressure plate and the other end on the locking seat, a plurality of first connecting rods 547 fixed on the first pressure plate and penetrating the locking seat, and a second pressure plate fixed at the other end of the first connecting rod. 548; The first spring is a compression spring; In the initial state, the first pressure plate and the second rack are relatively close; When fixing, the strap is wrapped around the patient's instep, and the first rack is inserted into the gap between the second pressure plate and the second rack. After the first rack is inserted, the first pressure plate will be squeezed open, and the first spring will be compressed, thereby causing the first pressure plate to push the first rack and the second rack to engage, and the engagement of the first rack and the second rack ensures that the strap will not fall off; If it needs to be untied, push the second pressure plate to disengage the first pressure plate from the first rack, and pull the first rack out of the first through slot.

[0038] Specifically, the resistance adjustment assembly includes a second rotating shaft 611 fixed on the placement plate, a plurality of third sliding grooves 612 fixed on the rotating base, a first slider 613 symmetrically fixed on the second rotating shaft and sliding along the third sliding groove, a resistance fixing device 614 provided on the rotating base, a first resistance device 615 provided on the rotating base, and a second resistance device 616 provided on the rotating base; the first slider is symmetrically arranged on both sides of the second rotating shaft; the first slider can rotate with the second rotating shaft and slide on the third sliding groove, the initial position of the first slider is located in the center of the third sliding groove, and the rotation angle of the first slider is plus or minus 45°, that is, the rotation angle range of the placement plate is plus or minus 45°; see the attached manual. Figure 8 For example, the first resistance device is arranged at the upper right and lower left, and the second resistance device is arranged at the upper left and lower right.

[0039] Specifically, the resistance fixing device includes a plurality of fixing grooves 6141 fixed on the rotating base, an adjusting ring 6142 rotatably arranged on the rotating base, a first bracket 6143 fixed on the adjusting ring, a fourth sliding groove 6144 fixed on the first bracket, a locking block 6145 slidably arranged on the fourth sliding groove and the fixed groove, a second spring 6146 with one end fixed on the locking block and the other end fixed on the adjusting ring, a first gear 6147 symmetrically rotatably sleeved on the rotating base, and a second gear 6148 symmetrically rotatably arranged on the rotating base; the adjusting ring can rotate, and when the resistance needs to be adjusted, the locking block is lifted upward to disengage the locking block from the fixing groove, and the adjusting ring is pushed to rotate the locking block with the adjusting ring to adjust the resistance. After rotating to the appropriate position, the locking block is opened, and the second spring clamps the locking block into the fixing groove to achieve fixation; the first gear is a face gear, and a face gear is provided on the side of the adjusting ring that contacts the second gear. The second gear is used to transmit the adjusting ring and the first gear, that is, when the adjusting ring rotates, the first gear can be driven to rotate by the second gear.

[0040] Specifically, the first resistance device includes a fifth slide 6151 symmetrically fixed on the rotating base, a first slide 6152 slidably arranged on the fifth slide and fixedly connected to the adjusting ring, a second slide 6153 slidably arranged on the third slide, and a first spring telescopic rod 6154 with one end fixed on the first slide and the other end fixed on the second slide; when the patient moves his foot, it will drive the placement plate to rotate on the first through hole, thereby driving the second rotating shaft and the first slide to rotate, and the second slide will push the second slide to rotate, so that the first spring telescopic rod is compressed, thereby generating resistance, and the greater the rotation angle, the greater the resistance, that is, the resistance the patient receives during the activity is a certain value. The range is not a fixed value. Patients do not need to adjust the resistance range during the initial rehabilitation training. They can keep trying to move at a larger angle during training. When the placement plate can be easily rotated to the maximum angle, the resistance range at this time is not difficult for the patient. Then, by adjusting the initial resistance size, the resistance size during the patient's activities can be adjusted, which plays a step-by-step role and improves the rehabilitation training effect. When the adjusting ring is rotated, the adjusting ring drives the other end of the first spring telescopic rod to move through the first slide plate, so that the first spring telescopic rod is pre-compressed. At this time, when the patient is moving, the initial resistance will increase. Different resistances can be adjusted during the patient's rehabilitation training to improve the rehabilitation training effect.

[0041] Specifically, the second resistance device includes a plurality of sixth slide grooves 6161 fixed on the rotating base, a third slide plate 6162 slidingly arranged on the sixth slide groove and connected to the first gear, a fourth slide plate 6163 slidingly arranged on the third slide groove, and a second spring telescopic rod 6164 with one end fixed on the third slide plate and the other end fixed on the fourth slide plate; the principle of the second resistance device is the same as that of the first resistance device. The rotation of the adjustment ring will drive the first gear to rotate through the second gear, and the rotation of the first gear will drive the third slide plate to move, thereby compressing the second spring telescopic rod, and the initial resistance of the patient during activity will increase. At the same time, the adjustment of the first resistance device and the second resistance device is synchronized, and the adjustment values ​​are also the same. The patient will experience the same resistance when performing dorsiflexion and plantar flexion.

[0042] Specifically, the locking assembly includes a plurality of first slots 621 fixed on the second rotating shaft, a plurality of second slots 622 fixed on the rotating base, a locking ring 623 slidably arranged on the second rotating shaft, and a plurality of locking rods 624 fixed on the locking ring and slidable along the first slots and the second slots; when the locking rods are inserted into the first slots and the second slots, the placement plate cannot rotate, and when the first slots and the second slots are aligned, the angle between the placement plate and the lower limb brace is 90°, which plays a role in fixing the patient's Achilles tendon.

[0043] During use, different elastic resistance bands can be pasted on the bottom of the placement board and pulled by hand to bend the knee joint while keeping the Achilles tendon fixed, and to move the calf muscles to avoid leg muscle atrophy; different sensors can be set at the second rotating shaft as needed, such as a photoelectric sensor. The first slider blocks the photoelectric sensor when rotating, generating different electrical signals to count the number of rotation activities, and the data is sent to the medical staff's monitoring system through a data sending device, such as Bluetooth, so that the medical staff can intuitively see the patient's activity data and prevent the patient from neglecting training or overtraining; different LED lights can also be set on the resistance fixing device, and different resistance intensities correspond to LED lights of different colors, which is convenient for patients to observe the resistance size.

[0044] Fractional shock wave therapy for skeletal muscle and soft tissue pain is a treatment method between conservative treatment and open surgical treatment. Fractional shock wave therapy is non-invasive, non-traumatic and highly effective. When the patient is doing activity training, the control panel controls the shock wave generator to emit shock waves according to the settings, and the shock wave therapy head is used to perform shock wave therapy on the patient's foot.

[0045] The above descriptions are merely some preferred embodiments of the present disclosure and illustrate the underlying technical principles. Those skilled in the art should understand that the scope of the invention encompassed by the embodiments of the present disclosure is not limited to technical solutions formed by specific combinations of the aforementioned technical features. It also encompasses other technical solutions formed by any combination of the aforementioned technical features or their equivalents, without departing from the aforementioned inventive concept. For example, a technical solution formed by replacing the aforementioned features with (but not limited to) technical features with similar functions disclosed in the embodiments of the present disclosure.

Claims

1. A rehabilitation training device for Achilles tendon contracture, characterized by: The invention comprises a lower limb brace (1), a rotating base (2), a connecting base (3) fixedly arranged on the rotating base, a first through hole (4) fixedly arranged on the rotating base, a placement plate (7) rotatably arranged on the first through hole, a fixing mechanism (5) arranged on the placement plate, and a training mechanism (6) arranged on the rotating base; the training mechanism comprises a resistance adjustment component (61) symmetrically arranged on the rotating base and the placement plate, and a locking component (62) symmetrically arranged on the placement plate.

2. The rehabilitation training device for Achilles tendon contracture according to claim 1, characterized in that: The fixing mechanism comprises a first rotating shaft (51) fixed on the placement plate, a strap (52) rotatably sleeved on the first rotating shaft, a first rack (53) fixed on the strap, and a locking assembly (54) fixed on the other side of the placement plate.

3. The rehabilitation training device for Achilles tendon contracture according to claim 2, characterized in that: The lock assembly includes a locking seat (541) fixed on the placement plate, a first through groove (542) fixed on the locking seat, a second rack (543) fixed on the locking seat, a plurality of first sliding grooves (544) symmetrically fixed on the locking seat, a first pressure plate (545) slidingly arranged on the first sliding groove, a plurality of first springs (546) with one end fixed on the first pressure plate and the other end fixed on the locking seat, a plurality of first connecting rods (547) fixed on the first pressure plate and penetrating the locking seat, and a second pressure plate (548) fixed on the other end of the first connecting rod.

4. The rehabilitation training device for Achilles tendon contracture according to claim 1, characterized in that: The resistance adjustment assembly includes a second rotating shaft (611) fixed on the placement plate, a plurality of third sliding grooves (612) fixed on the rotating base, a first sliding block (613) symmetrically fixed on the second rotating shaft and sliding along the third sliding grooves, a resistance fixing device (614) provided on the rotating base, a first resistance device (615) provided on the rotating base, and a second resistance device (616) provided on the rotating base.

5. The rehabilitation training device for Achilles tendon contracture according to claim 4, characterized in that: The resistance fixing device includes a plurality of fixing grooves (6141) fixed on the rotating base, an adjusting ring (6142) rotatably arranged on the rotating base, a first bracket (6143) fixed on the adjusting ring, a fourth sliding groove (6144) fixed on the first bracket, a locking block (6145) slidingly arranged on the fourth sliding groove and the fixing groove, a second spring (6146) with one end fixed on the locking block and the other end fixed on the adjusting ring, a first gear (6147) symmetrically rotatably sleeved on the rotating base, and a second gear (6148) symmetrically rotatably arranged on the rotating base.

6. The rehabilitation training device for Achilles tendon contracture according to claim 5, characterized in that: The first resistance device includes a fifth slide groove (6151) symmetrically fixed on the rotating base, a first slide plate (6152) slidably arranged on the fifth slide groove and fixedly connected to the adjustment ring, a second slide plate (6153) slidably arranged on the third slide groove, and a first spring telescopic rod (6154) with one end fixed on the first slide plate and the other end fixed on the second slide plate.

7. The rehabilitation training device for Achilles tendon contracture according to claim 5, characterized in that: The second resistance device includes a plurality of sixth slide grooves (6161) fixedly arranged on the rotating base, a third slide plate (6162) slidably arranged on the sixth slide groove and connected to the first gear, a fourth slide plate (6163) slidably arranged on the third slide groove, and a second spring telescopic rod (6164) with one end fixedly arranged on the third slide plate and the other end fixedly arranged on the fourth slide plate.

8. The rehabilitation training device for Achilles tendon contracture according to claim 4, characterized in that: The locking assembly comprises a plurality of first slots (621) fixedly arranged on the second rotating shaft, a plurality of second slots (622) fixedly arranged on the rotating base, a locking ring (623) slidably arranged on the second rotating shaft, and a plurality of locking rods (624) fixedly arranged on the locking ring and slidable along the first slots and the second slots.

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