Rehabilitation training device for preventing and treating lower limb venous thrombosis

Abstract

The invention relates to the technical field of physiotherapy instruments, in particular to a rehabilitation training device for lower limb venous thrombosis prevention and treatment. The device comprises an inflatable massage protective sleeve and a treading training assembly, the inflatable massage protective sleeve comprises a protective sleeve shell, a middle-layer inflatable sleeve and an inner-layer massage inflatable sleeve which are sequentially arranged in a stacked and sleeved mode from outside to inside, and the inflatable massage protective sleeve is of a double-sleeve inflatable structure of the middle-layer inflatable sleeve and the inner-layer massage inflatable sleeve; by means of the mode that the middle-layer inflation sleeve is inflated to enable the inner-layer massage inflation sleeve to be attached to the shanks of the patient firstly, and then the inner-layer massage inflation sleeve is inflated, it is guaranteed that under the condition that the shanks of the patient are thin, the inner-layer massage inflation sleeve can still keep the enough expansion degree, and therefore the massage strength is guaranteed; and the problem of insufficient massage force during re-inflation caused by excessive expansion of the inflation sleeve is avoided. Therefore, the problem that in the prior art, the strength of massaging the shanks of the patient is possibly low is solved, and the problem that the patient cannot be prompted according to the specified training strength during ankle joint treading training is also solved.

Description

Technical Field

[0001] This invention relates to the field of physiotherapy equipment technology, and in particular to a rehabilitation training device for the prevention and treatment of lower extremity venous thrombosis. Background Technology

[0002] Venous thrombosis includes two types: thrombophlebitis and venous thrombosis. Its onset is closely related to slow blood flow, hypercoagulability, and changes in the venous intima, with deep vein thrombosis of the lower extremities being the most common. Currently, the treatment of lower extremity venous thrombosis mainly includes physical therapy and drug therapy: physical therapy often involves intermittent pneumatic compression massage of the calves to promote blood circulation, but long-term adherence is required to see results.

[0003] Existing intermittent pneumatic compression therapy devices for venous thrombosis, such as the "Inflatable Sheath for Prevention and Treatment of Venous Thrombosis" disclosed in Chinese Invention Patent Publication No. CN116098800A, can provide pressure massage therapy to the calf. However, since the inflatable sheath adapted to the shape of the patient's calf is the same as the inflatable sheath used for massage, if the patient requires the inflatable sheath to expand significantly to fit their calf, the rebound stroke of the inflatable sheath becomes very large. Furthermore, when the inflatable sheath is re-inflated after extreme expansion, the massage intensity may be insufficient, resulting in poor therapeutic effects.

[0004] To address the issue that existing technologies may provide insufficient intensity for massaging the patient's calves, this invention proposes a novel rehabilitation training device for the prevention and treatment of lower extremity venous thrombosis. Summary of the Invention

[0005] The purpose of this invention is to provide a novel rehabilitation training device for the prevention and treatment of lower extremity venous thrombosis, which can adapt to the shape of calves with different thicknesses and ensure sufficient massage intensity, so as to solve the problems existing in the prior art.

[0006] To achieve the above objectives, the present invention provides the following solution:

[0007] This invention provides a rehabilitation training device for the prevention and treatment of lower extremity deep vein thrombosis, comprising:

[0008] An inflatable massage sleeve includes a sleeve shell, a middle inflatable sleeve, and an inner massage inflatable sleeve arranged in a stacked manner from the outside to the inside. The inner massage inflatable sleeve is used for the patient's lower leg to wear. The middle inflatable sleeve and the inner massage inflatable sleeve can be inflated and deflated independently. The middle inflatable sleeve is used to adjust the degree of adhesion between the inner massage inflatable sleeve and the patient's lower leg. The inner massage inflatable sleeve is used to inflate and massage the patient's lower leg.

[0009] A foot-training component is located at the end of the sheath and is used for foot-training exercises for patients.

[0010] In some embodiments, the sheath shell has a first through hole and a second through hole offset on its shell wall;

[0011] The side wall of the intermediate layer inflatable sleeve is provided with a first inflation / deflation port, the first inflation / deflation port is connected to a first air pipe, the first air pipe passes through the first through hole and extends to the outside of the protective sleeve shell; the side wall of the intermediate layer inflatable sleeve is provided with a through third through hole, and the hole edge of the third through hole is closed.

[0012] The inner massage air sleeve has a second inflation / deflation port on its side wall. The second inflation / deflation port is connected to a second air pipe. The second air pipe passes through the third through hole and the second through hole in sequence and extends out of the protective sleeve shell.

[0013] In some embodiments, the outer end of the first air tube is also connected to a first press-type airbag capable of inflating the intermediate layer air sleeve, and a valve is also provided on the first air tube;

[0014] The outer end of the second trachea is also connected to a second press-type airbag that can inflate the inner massage air sleeve.

[0015] In some embodiments, the rehabilitation training device for the prevention and treatment of lower extremity venous thrombosis further includes a support frame, on which the sheath rests.

[0016] In some embodiments, the pedaling training component includes:

[0017] A connecting rod, which is mounted to the end of the sheath via a mounting structure;

[0018] The pedal is movably connected to the connecting rod via a spring feedback component, which provides pedaling resistance and restoring force.

[0019] A pedal travel limit device is installed on the connecting rod to limit the pedal travel.

[0020] In some embodiments, two connecting rods are provided and symmetrically distributed on both sides of the sheath; the elastic feedback assembly includes:

[0021] A pair of extension rods, the first ends of which are respectively hinged to the two connecting rods via connecting shafts; the second ends of which are respectively connected to the two ends of the pedal.

[0022] A torsion spring is fitted onto the connecting shaft, and both ends of the torsion spring are connected to the tensioning rod and the connecting rod, respectively. The torsion spring can provide a restoring force for the tensioning rod to rotate toward the sheath shell; at least one set of the tensioning rod and the connecting rod are provided with the torsion spring.

[0023] In some embodiments, the foot training assembly further includes a belt disposed on the foot pedal for limiting the patient's foot position.

[0024] In some embodiments, the connecting rod has a sliding groove, and the pedal travel limiting device includes:

[0025] An external connecting rod is located on the outer side of the second end of the extension rod;

[0026] A collar is rotatably mounted on the outside of the outer connecting rod;

[0027] The driven plate slides with the slide groove to form a sliding pair, and the side of the driven plate away from the pedal is connected to the end of the slide groove through a return spring;

[0028] A rotating plate is rotatably mounted on the end of the driven plate, and the rotating plate is connected to the collar by a rigid pull rope;

[0029] The stroke adjustment assembly includes a stroke adjustment plate and an adjustment bolt. The stroke adjustment plate is slidably installed in the slide groove and is located on the side of the driven plate near the pedal. The stroke adjustment plate can limit the pedal stroke by limiting the sliding stroke of the driven plate. The slide groove has multiple threaded holes spaced apart along its extension direction. The stroke adjustment plate can be detached and reattached to the threaded holes at different positions by the adjustment bolt to adjust the sliding stroke level of the driven plate.

[0030] In some embodiments, the travel adjustment component further includes a prompting component, the prompting component comprising:

[0031] A button is provided on the side of the travel adjustment plate facing the driven plate, and is capable of contact sensing with the driven plate;

[0032] An indicator light is provided on the protective housing and is communicatively connected to the button. The indicator light can be automatically turned on when the actuated plate contacts the button and automatically turned off after the actuated plate is separated from the button.

[0033] In some embodiments, the mounting structure includes:

[0034] A retaining ring is fixedly fitted onto the outside of the sheath shell;

[0035] A movable ring is movably fitted onto the outside of the sheath and forms a sliding pair with the sheath; the movable ring is fixedly connected to the connecting rod.

[0036] An adjusting screw is provided, one end of which is rotatably connected to the fixed ring, and the other end of which passes through the movable ring and is threadedly connected to the movable ring. Rotating the adjusting screw can drive the movable ring and the fixed ring to move closer to each other or further apart.

[0037] The present invention achieves the following technical effects compared to the prior art:

[0038] The rehabilitation training device for the prevention and treatment of lower extremity venous thrombosis proposed in this invention features a double-layer inflatable massage sleeve with an intermediate inflatable sleeve and an inner massage inflatable sleeve. By first inflating the intermediate inflatable sleeve to make the inner massage inflatable sleeve fit the patient's calf, and then inflating the inner massage inflatable sleeve, it is ensured that even when the patient's calf is thin, the inner massage inflatable sleeve can still maintain sufficient expansion, thereby ensuring massage intensity and avoiding the problem of insufficient massage intensity when re-inflating due to over-expansion of the inflatable sleeve.

[0039] In some technical solutions disclosed in this invention, a travel adjustment plate, a button, and an indicator light are provided. By rotating the adjustment bolt, the travel adjustment plate can be moved to a designated position to change the sliding position of the driven plate (i.e., the length of the sliding travel of the driven plate). When the patient's foot steps on the pedal, causing the relevant components to move and touch the button, the indicator light illuminates to indicate that the action is in place. This achieves the purpose of limiting the ankle joint movement range and indicating the exercise intensity according to the patient's actual condition and rehabilitation status. It can provide clear exercise guidance for the patient and solve the problem in existing foot-based rehabilitation devices that do not limit the ankle joint movement range, making it impossible to appropriately indicate to the patient how much to step on to complete a single exercise, thus failing to provide targeted exercise guidance based on the patient's actual condition and rehabilitation status. This improves the home-use flexibility of the entire rehabilitation training device.

[0040] In some of the technical solutions disclosed in this invention, the torsion spring and the return spring are used in combination. When the patient steps on the pedal, the extension rod and the connecting shaft rotate, causing the torsion spring to deform, thereby achieving the exercise effect. When the patient stops stepping, the elastic force of the return spring can also drive the driven plate to return to its original position. This design can provide resistance feedback during exercise, enhance the exercise effect, and is also easy to operate.

[0041] In some of the technical solutions disclosed in this invention, a detachable adjustment structure with an adjusting bolt and a threaded socket is adopted. The travel adjustment plate can be moved by rotating the adjusting bolt to pull it out of the threaded socket. After adjustment, the adjusting bolt is screwed into the threaded socket to fix it. The operation is simple and quick, and the movement travel level can be switched quickly to meet the needs of patients for exercise intensity at different rehabilitation stages.

[0042] In some of the technical solutions disclosed in this invention, the installation structure between the inflatable massage sleeve and the pedaling training component adopts a combination structure of a fixed ring, a movable ring and an adjusting screw. By rotating the adjusting screw, the relative distance between the pedaling training component and the end of the inflatable massage sleeve can be adjusted, which can adapt to different patients' leg lengths and body positions, meet the pedaling needs of different patients, and improve the flexibility and practicality of the equipment. Attached Figure Description

[0043] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0044] Figure 1 This is a schematic diagram of the overall structure of the rehabilitation training device for the prevention and treatment of lower extremity venous thrombosis disclosed in an embodiment of the present invention;

[0045] Figure 2 This is a schematic diagram of the structure of the sheath shell disclosed in an embodiment of the present invention;

[0046] Figure 3 This is a schematic diagram of the structure of the intermediate air-filled sleeve disclosed in an embodiment of the present invention;

[0047] Figure 4 This is a schematic diagram of the structure of the inner massage air-filled sleeve disclosed in an embodiment of the present invention;

[0048] Figure 5 This is a schematic diagram of the overall structure of the pedal training component disclosed in an embodiment of the present invention;

[0049] Figure 6 for Figure 5 A magnified structural diagram of point A in the middle.

[0050] In the figure, the labels are: 100 - Rehabilitation training device for the prevention and treatment of lower extremity venous thrombosis; 101 - Inflatable massage sleeve; 102 - Stepping training component;

[0051] 1-Sheath; 2-Intermediate layer inflatable sleeve; 2-1-Third through hole; 3-First press-type airbag; 4-Valve; 5-First air tube; 6-Inner layer massage inflatable sleeve; 7-Second press-type airbag; 8-Second air tube; 9-First through hole; 10-Second through hole; 11-Fixing ring; 12-Moving ring; 13-Adjusting screw; 14-Connecting rod; 15-Connecting shaft; 16-Torsion spring; 17-Expansion rod; 18-Step pedal; 19-Belt; 20-Outer connecting rod; 21-Collar ring; 22-Hard pull rope; 23-Rotating plate; 24-Moving plate; 25-Slide groove; 26-Reset spring; 27-Stroke adjustment plate; 28-Button; 29-Adjusting bolt; 30-Threaded insertion hole; 31-Indicator light; 32-Support frame; 33-Wheel. Detailed Implementation

[0052] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0053] The purpose of this invention is to provide a novel rehabilitation training device for the prevention and treatment of lower extremity venous thrombosis, which can adapt to the shape of calves with different thicknesses and ensure sufficient massage intensity, so as to solve the problems existing in the prior art.

[0054] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0055] Example 1

[0056] like Figure 1 As shown, this embodiment provides a rehabilitation training device 100 for the prevention and treatment of lower extremity deep vein thrombosis, mainly comprising two parts: an inflatable massage sleeve 101 and a foot-feeding training component 102. The inflatable massage sleeve 101 includes a sleeve shell 1, a middle inflatable sleeve 2, and an inner massage inflatable sleeve 6, arranged sequentially from the outside to the inside. The inner massage inflatable sleeve 6 is used for the patient's lower leg to wear. The middle inflatable sleeve 2 and the inner massage inflatable sleeve 6 can be inflated and deflated independently. The middle inflatable sleeve 2 is used to adjust the adhesion between the inner massage inflatable sleeve 6 and the patient's lower leg, while the inner massage inflatable sleeve 6 is used for intermittent inflatable massage of the patient's lower leg. The foot-feeding training component 102 is located at the end of the sleeve shell 1 and is used for foot-feeding training by the patient. In actual use, the patient's lower leg starts from the front end of the sleeve shell 1 (i.e., the... Figure 1 (as shown in the front end) to the end (i.e.) Figure 1The rear end (as shown) extends out, and the foot extends through the end of the protective shell 1, which can contact the foot training component 102. The patient can perform foot training while intermittently inflating and massaging the patient's calf through the inner massage inflatable sleeve 6. The calf inflatable massage and foot foot training can be carried out in separate time periods. The usage is flexible and the patient can use it freely according to their needs.

[0057] In some feasible embodiments, the shell wall of the sheath 1 is provided with a first through hole 9 and a second through hole 10 offset from each other, such as... Figure 1 and Figure 2 As shown, the second through hole 10 is located above the first through hole 9.

[0058] The side wall of the intermediate layer air sleeve 2 is provided with a first inflation / deflation port, which is connected to the first air pipe 5, such as... Figure 1 As shown, the first air tube 5 passes through the first through hole 9 and extends out of the protective shell 1. Simultaneously, a third through hole 2-1 is also provided on the side wall of the intermediate layer inflation sleeve 2, as shown... Figure 3 As shown, the third through hole 2-1 is located above the first air tube 5 and is used to align and communicate with the second through hole 10. The edge of the third through hole 2-1 is closed to ensure the sealing of the inner cavity of the intermediate layer air sleeve 2.

[0059] The inner massage air sleeve 6 has a second inflation / deflation port on its side wall, which is connected to a second air tube 8, such as... Figure 1 As shown, the second air tube 8 passes through the third through hole 2-1 and the second through hole 10 in sequence and extends out of the protective shell 1.

[0060] The inner massage inflatable sleeve 6 and the middle inflatable sleeve 2 are stacked inside and out to form a double-layer inflatable structure. The middle inflatable sleeve 2 is specially designed to adjust the fit between the inner massage inflatable sleeve 6 and the patient's calf. This avoids the problem that the inner massage inflatable sleeve 6 needs to be expanded too much to fit the patient's calf. Through the synergistic cooperation of the inner massage inflatable sleeve 6 and the middle inflatable sleeve 2, not only can the inner massage inflatable sleeve 6 be adapted to patients with different calf thicknesses, but the inflation stroke of the inner massage inflatable sleeve 6 is also guaranteed to be within a reasonable range of massage intensity. This solves the problem that existing inflatable sleeves may cause insufficient massage intensity and poor therapeutic effect when over-expanded and then re-inflated.

[0061] In practical applications, the outer wall of the intermediate inflatable sleeve 2 can be partially connected to the inner wall of the protective shell 1. This prevents misalignment of the intermediate inflatable sleeve 2 relative to the protective shell 1 while ensuring the normal inflation and deflation function of the intermediate inflatable sleeve 2. The connection methods between the intermediate inflatable sleeve 2 and the protective shell 1 include, but are not limited to, welding, bonding, and locking connections. Similarly, the outer wall of the inner massage inflatable sleeve 6 is partially connected to the inner wall of the intermediate inflatable sleeve 2. This prevents misalignment of the inner massage inflatable sleeve 6 relative to the intermediate inflatable sleeve 2 while ensuring the normal inflation and deflation function of both the intermediate inflatable sleeve 2 and the inner massage inflatable sleeve 6. The connection methods between the inner massage inflatable sleeve 6 and the intermediate inflatable sleeve 2 include, but are not limited to, welding, bonding, and locking connections.

[0062] Some feasible implementation methods, such as Figure 3 As shown, the outer end of the first trachea 5 is also connected to a first press-type airbag 3 that can inflate the middle layer inflatable sleeve 2. The first trachea 5 is also equipped with a valve 4. After the middle layer inflatable sleeve 2 is inflated and the fit between the inner layer massage inflatable sleeve 6 and the patient's lower leg is adjusted, the valve 4 can be closed to prevent air leakage inside the middle layer inflatable sleeve 2, so as to maintain the relative position between the inner layer massage inflatable sleeve 6 and the patient's lower leg, which is conducive to the inner layer massage inflatable sleeve 6 inflating and massaging the lower leg with a reasonable force.

[0063] Both the middle layer inflatable sleeve 2 and the inner massage inflatable sleeve 6 can be equipped with air nozzles for deflation. These air nozzles are a standard design feature in inflatable sleeve structures and will not be described in detail here.

[0064] Some feasible implementation methods, such as Figure 4 As shown, the outer end of the second air tube 8 is also connected to a second press-type airbag 7, which can inflate the inner massage inflatable sleeve 6. If a long-term inflation and compression function of the inner massage inflatable sleeve 6 is desired, a valve can also be configured on the second air tube 8.

[0065] Some feasible implementation methods, such as Figure 1 As shown, the rehabilitation training device 100 for the prevention and treatment of lower extremity deep vein thrombosis also includes a support frame 32, on which the sheath 1 rests. The support frame 32 includes a front support and a rear support, which are respectively supported at the front and rear ends of the sheath 1, so that the sheath 1 is at a certain height above the ground, making it easy for the patient's lower leg to extend into it. Preferably, both the front and rear supports are connected to the outer wall of the sheath 1, and the connection method includes, but is not limited to, welding, bolting, etc.

[0066] To improve the home-use applicability and ease of use of the rehabilitation training device 100 for the prevention and treatment of lower extremity deep vein thrombosis, both the front and rear supports can be configured as lifting frames to flexibly adjust the height of the protective housing 1. Furthermore, wheels 33 can be installed at the bottom of both the front and rear supports to facilitate the transfer of the rehabilitation training device 100. The wheels 33 can be self-locking casters.

[0067] In some feasible implementations, the sheath shell 1 can be cylindrical. To better fit the shape of the lower leg, it is preferable that the sheath shell 1 adopts a conical structure, such as... Figure 1 and Figure 2 As shown, the sheath shell 1 includes a head cylinder and a tail cylinder arranged coaxially. The outer diameter of the head cylinder is larger than the outer diameter of the tail cylinder. The head cylinder and the tail cylinder are connected by a frustum-shaped cylinder. The shape and contour of the middle layer inflatable sleeve 2 and the inner massage inflatable sleeve 6 are preferably adapted to the shape and contour of the sheath shell 1.

[0068] Some feasible implementation methods, such as Figure 1 and Figure 5 As shown, the pedal training assembly 102 includes a connecting rod 14, a pedal 18, and a pedal travel limiting device. The connecting rod 14 is mounted to the end of the housing 1 via a mounting structure; the pedal 18 is movably connected to the connecting rod 14 via a spring feedback assembly, which provides pedal resistance and restoring force to the pedal 18; the pedal travel limiting device is disposed on the connecting rod 14 and can limit the pedal travel of the pedal 18.

[0069] Some feasible implementation methods, such as Figure 5 As shown, preferably, two connecting rods 14 are provided and symmetrically distributed on both sides of the sheath 1. The elastic feedback assembly includes a pair of extension rods 17 and a torsion spring 16, wherein the first ends of the two extension rods 17 (i.e., Figure 5 The bottom ends of the two connecting rods 17 are hinged to each other via a connecting shaft 15. The connecting shaft 15 and the tensioning rods 17 are rigidly connected via key connections, welding, or interference fit riveting. The connecting shaft 15 and the connecting rods 14 are rotatably coupled. Figure 5 The top ends (as shown) are connected to the two ends of the foot pedal 18. A torsion spring 16 is fitted onto the connecting shaft 15, and its two ends are connected to the extension rod 17 and the connecting rod 14, respectively. The torsion spring 16 provides a restoring force to the extension rod 17 as it rotates towards the sheath 1, and provides foot resistance when the patient steps on the foot pedal 18, thus achieving foot resistance feedback and training effect. Figure 5 As shown, the two connecting shafts 15 are coaxial, and each connecting shaft 15 is fitted with a torsion spring 16. The elastic arms on both sides of the torsion spring 16 are respectively embedded in the connecting rod 14 and the extension rod 17.

[0070] In some feasible embodiments, the foot training assembly 102 also includes a belt 19, which is disposed on the foot pedal 18 to limit the patient's foot and prevent the patient's foot from leaving the foot pedal 18 during footing. The two ends of the foot pedal 18 can be fixedly connected to the two extension rods 17 by welding, bolting or other means.

[0071] Some feasible implementation methods, such as Figure 5 and Figure 6 As shown, a groove 25 is provided on the connecting rod 14. The aforementioned pedal stroke limiting device includes an outer connecting rod 20, a collar 21, a driven plate 24, a rotating plate 23, and a stroke adjustment assembly, wherein: an outer connecting rod 20 is provided on the outer side of the second end of each extension rod 17, and the outer connecting rod 20 is welded, bolted, or integrally formed with the extension rod 17; the collar 21 is rotatably fitted onto the outside of the outer connecting rod 20; the driven plate 24 and the groove 25 slide together to form a sliding pair, and the side of the driven plate 24 away from the pedal 18 is connected to the end of the groove 25 (i.e., the end of the groove 25) via a return spring 26. Figure 5 Connected to the front end shown, the return spring 26 assists the torsion spring 16 in providing a restoring force for the extension rod 17 to rotate toward the sheath 1, and provides stepping resistance when the patient steps on the pedal 18. The rotating plate 23 is rotatably mounted on the end of the driven plate 24, and the rotating plate 23 is connected to the collar 21 via a rigid pull rope 22. At this time, the two ends of the rigid pull rope 22 are respectively hinged to the outer connecting rod 20 and the driven plate 24 via the collar 21, the rotating plate 23, and the driven plate 24. Based on this, when the patient steps on the pedal 18, causing the pedal 18 to flip downward away from the sheath 1, the rigid pull rope 22 can be used to pull the driven plate 24 to slide along the slide groove 25 to stretch the return spring 26. The rigid pull rope 22 can be a rigid rod structure such as a plastic rod or a metal rod, including but not limited to a straight rod structure. It should also be noted that the driven plate 24 is a rectangular plate, which has a planar contact fit with the slide groove 25. This design only allows the driven plate 24 to translate relative to the slide groove 25, but not to rotate relative to the slide groove 25. The aforementioned stroke adjustment assembly includes a stroke adjustment plate 27 and an adjustment bolt 29. The stroke adjustment plate 27 is slidably installed in the slide groove 25 and is located on the side of the driven plate 24 near the pedal 18. The stroke adjustment plate 27 can limit the pedal stroke of the pedal 18 by limiting the sliding stroke of the driven plate 24. At the same time, a plurality of threaded holes 30 are spaced apart along the extension direction of the slide groove 25, such as... Figure 6 As shown, the stroke adjustment plate 27 is fixed to the frontmost threaded socket 30 by the adjusting bolt 29. At this time, the sliding stroke of the driven plate 24 is relatively short. If it is necessary to increase the sliding stroke of the driven plate 24, the adjusting bolt 29 can be unscrewed, and the stroke adjustment plate 27 can be slid backward along the slide groove 25. The stroke adjustment plate 27 corresponds to different threaded sockets 30, corresponding to different lengths of sliding stroke of the driven plate 24. The stroke adjustment plate 27 can be disassembled and assembled with different threaded sockets 30 by the adjusting bolt 29 to adjust the sliding stroke position of the driven plate 24. After the stroke position is adjusted, the adjusting bolt 29 is directly inserted into the stroke adjustment plate 27 and the corresponding threaded socket 30, and the adjusting bolt 29 is tightened to fix the stroke adjustment plate 27.

[0072] In some feasible implementations, the travel adjustment assembly also includes a prompting component, which includes a button 28 and an indicator light 31. The button 28 is located on the side of the travel adjustment plate 27 facing the actuated plate 24 and can contact and sense the actuated plate 24. The button 28 can be a pressure sensor or a travel switch such as a mechanical limit switch. The indicator light 31 is located on the protective housing 1 and is communicatively connected to the button 28. The indicator light 31 can automatically turn on when the actuated plate 24 contacts the button 28 and automatically turn off after the actuated plate 24 separates from the button 28, so as to remind the patient of the training progress through the on / off signal of the light.

[0073] In some feasible embodiments, the aforementioned installation structure includes a fixed ring 11, a movable ring 12, and an adjusting screw 13. The fixed ring 11 is fixedly fitted onto the outside of the protective shell 1, and the movable ring 12 is movably fitted onto the outside of the protective shell 1, forming a sliding pair with the protective shell 1. The movable ring 12 is fixedly connected to the connecting rod 14. One end of the adjusting screw 13 is rotatably connected to the fixed ring 11, and the other end of the adjusting screw 13 passes through the movable ring 12 and is threadedly connected to the movable ring 12. Rotating the adjusting screw 13 can drive the movable ring 12 and the fixed ring 11 to move closer or further apart, so as to adjust the distance between the pedal 18 and the end of the protective shell 1 according to patients with different leg lengths, thereby meeting the training needs of different patients. The other end of the adjusting screw 13 can be connected to a handwheel to adjust the distance between the movable ring 12 and the fixed ring 11 by hand cranking. In other embodiments, the other end of the adjusting screw 13 can also be connected to a drive mechanism such as a motor to adjust the distance between the movable ring 12 and the fixed ring 11 by mechanical adjustment.

[0074] Working principle: The patient's lower leg extends from the head end to the tail end of the inner massage inflatable sleeve 6. Pressing the first press-type airbag 3 inflates the middle inflatable sleeve 2 through the first air tube 5, so that the inner massage inflatable sleeve 6 basically fits the patient's lower leg. Close the valve 4 to prevent backflow of air. The family member can then press the second press-type airbag 7 to expand the inner massage inflatable sleeve 6 through the second air tube 8, and massage the patient's leg. Even when the patient's legs are thin, the massage intensity can still be guaranteed.

[0075] When the patient steps down on the pedal 18, it causes the extension rod 17 and the connecting shaft 15 to rotate, which in turn causes the torsion spring 16 to deform, thus achieving an exercise effect. When the pedal 18 is in motion, the transmission action of the outer connecting rod 20, the collar 21, the rigid pull rope 22 and the rotating plate 23 drives the driven plate 24 to move. When the driven plate 24 touches the button 28, the indicator light 31 is lit, indicating that the patient has completed the action.

[0076] Rotating the adjusting bolt 29 to pull it out of the threaded socket 30 allows the travel adjusting plate 27 to be moved to the designated position, changing the sliding travel length of the driven plate 24. When the patient stops stepping on it, the elastic force of the return spring 26 can also drive the driven plate 24 to return to its original position.

[0077] In summary, this invention solves the problems of existing technologies, such as potentially low intensity of calf massage and inability to provide patients with the specified training intensity during ankle joint stepping exercises. The specific beneficial effects are as follows:

[0078] (i) The double-layer inflation structure of the middle layer inflation sleeve and the inner layer massage inflation sleeve is adopted. The middle layer inflation sleeve is inflated first to make the inner layer massage inflation sleeve fit the patient's calf. Then the inner layer massage inflation sleeve is inflated. This ensures that the inner layer massage inflation sleeve can maintain sufficient expansion even when the patient's calf is thin. This ensures the massage intensity and avoids the problem of insufficient massage intensity when the inflation sleeve is over-expanded and then re-inflated.

[0079] (II) The device is equipped with a travel adjustment plate, buttons, and indicator lights. By rotating the adjustment bolt, the travel adjustment plate can be moved to a designated position to change the sliding position of the driven plate (i.e., the length of the sliding travel of the driven plate). When the patient steps on the pedal, the relevant parts move and touch the button, and the indicator light illuminates to indicate that the action is in place. This achieves the purpose of limiting the ankle joint movement range and indicating the exercise intensity according to the patient's actual condition and rehabilitation status. It can provide clear exercise guidance for patients and solves the problem in existing foot-based rehabilitation devices that do not limit the ankle joint movement range and cannot properly indicate to the patient how much to step on to complete a single exercise. As a result, it is impossible to guide patients to perform targeted exercises according to their actual condition and rehabilitation status, thus improving the home-use flexibility of the entire rehabilitation training device.

[0080] (III) By utilizing the combination of torsion spring and return spring, when the patient steps on the pedal, it drives the extension rod and connecting shaft to rotate, causing the torsion spring to deform, thereby achieving the exercise effect. When the patient stops stepping, the elastic force of the return spring can also drive the driven plate to return to its original position. This design can provide resistance feedback during exercise, enhance the exercise effect, and is also easy to operate.

[0081] (iv) The adjustable structure is detachable with adjusting bolts and threaded holes. The travel adjustment plate can be moved by rotating the adjusting bolts to pull them out of the threaded holes. After adjustment, the adjusting bolts are screwed into the threaded holes to fix it. The operation is simple and quick, and the travel range can be switched quickly to meet the needs of patients for exercise intensity at different rehabilitation stages.

[0082] (v) The installation structure between the inflatable massage sleeve and the foot training component adopts a combination structure of fixed ring, moving ring and adjusting screw. The relative distance between the foot training component and the end of the inflatable massage sleeve can be adjusted by rotating the adjusting screw, which can adapt to the foot training needs of different patients and improve the flexibility and practicality of the equipment.

[0083] It should be understood that the structures, proportions, sizes, etc., depicted in the accompanying drawings are merely for illustrative purposes to aid those skilled in the art and to facilitate understanding. They are not intended to limit the scope of the invention and therefore have no substantial technical significance. Any modifications to the structure, changes in proportions, or adjustments to size, without affecting the effectiveness and objectives of the invention, should still fall within the scope of the technical content disclosed herein. Furthermore, the terms "upper," "lower," "left," "right," "middle," and "one" used in this specification are merely for clarity and not intended to limit the scope of the invention. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered within the scope of the invention's implementation.

[0084] Specific examples have been used to illustrate the principles and implementation methods of this invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of this invention. Furthermore, those skilled in the art will recognize that, based on the ideas of this invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A rehabilitation training device for the prevention and treatment of lower extremity venous thrombosis, characterized in that, include: An inflatable massage sleeve (101) includes a sleeve shell (1), an intermediate inflatable sleeve (2), and an inner massage inflatable sleeve (6) arranged in a stacked manner from the outside to the inside. The inner massage inflatable sleeve (6) is used for the patient's lower leg to wear. The intermediate inflatable sleeve (2) and the inner massage inflatable sleeve (6) can be inflated and deflated independently. The intermediate inflatable sleeve (2) is used to adjust the degree of adhesion between the inner massage inflatable sleeve (6) and the patient's lower leg. The inner massage inflatable sleeve (6) is used to inflate and massage the patient's lower leg. A foot-training component (102) is disposed at the end of the sheath (1) for use by the patient to perform foot-training.

2. The rehabilitation training device for the prevention and treatment of lower extremity venous thrombosis according to claim 1, characterized in that, The sheath (1) has a first through hole (9) and a second through hole (10) offset on its shell wall; The side wall of the intermediate layer inflatable sleeve (2) is provided with a first inflation / deflation port, the first inflation / deflation port is connected to a first air pipe (5), the first air pipe (5) passes through the first through hole (9) and extends to the outside of the protective shell (1); the side wall of the intermediate layer inflatable sleeve (2) is provided with a through third through hole (2-1), and the hole edge of the third through hole (2-1) is closed. The inner massage air sleeve (6) has a second air inlet on its side wall. The second air inlet is connected to a second air pipe (8). The second air pipe (8) passes through the third through hole (2-1) and the second through hole (10) in sequence and extends out of the protective shell (1).

3. The rehabilitation training device for the prevention and treatment of lower extremity venous thrombosis according to claim 2, characterized in that, The outer end of the first air tube (5) is also connected to a first press-type airbag (3) that can inflate the intermediate layer air sleeve (2), and a valve (4) is also provided on the first air tube (5); The outer end of the second trachea (8) is also connected to a second press-type airbag (7) that can inflate the inner massage air sleeve (6).

4. The rehabilitation training device for the prevention and treatment of lower extremity venous thrombosis according to any one of claims 1 to 3, characterized in that, It also includes a support frame (32), on which the sheath (1) rests.

5. The rehabilitation training device for the prevention and treatment of lower extremity venous thrombosis according to any one of claims 1 to 3, characterized in that, The pedaling training component (102) includes: A connecting rod (14) is mounted to the end of the sheath (1) via a mounting structure; The pedal (18) is movably connected to the connecting rod (14) through the elastic feedback component, which can provide pedal resistance and restoring force to the pedal (18); A pedal travel limit device is provided on the connecting rod (14) and can limit the pedal travel of the pedal (18).

6. The rehabilitation training device for the prevention and treatment of lower extremity venous thrombosis according to claim 5, characterized in that, Two connecting rods (14) are provided and symmetrically distributed on both sides of the sheath (1); the elastic feedback assembly includes: A pair of extension rods (17), the first ends of the two extension rods (17) are respectively hinged to the two connecting rods (14) via connecting shafts (15); the second ends of the two extension rods (17) are respectively connected to the two ends of the pedal (18); A torsion spring (16) is fitted onto the connecting shaft (15), and both ends of the torsion spring (16) are connected to the extension rod (17) and the connecting rod (14) respectively. The torsion spring (16) can provide the extension rod (17) with a restoring force to rotate toward the sheath (1); at least one set of the extension rod (17) and the connecting rod (14) is provided with the torsion spring (16).

7. The rehabilitation training device for the prevention and treatment of lower extremity venous thrombosis according to claim 6, characterized in that, The foot training assembly (102) also includes a belt (19) disposed on the foot pedal (18) for limiting the patient's foot position.

8. The rehabilitation training device for the prevention and treatment of lower extremity venous thrombosis according to claim 6, characterized in that, The connecting rod (14) is provided with a sliding groove (25), and the pedal stroke limiting device includes: An outer connecting rod (20) is disposed on the outer side of the second end of the extension rod (17); The collar (21) is rotatably mounted on the outside of the outer connecting rod (20); The driven plate (24) slides with the slide groove (25) to form a sliding pair, and the side of the driven plate (24) away from the pedal (18) is connected to the end of the slide groove (25) through a return spring (26); A rotating plate (23) is rotatably mounted on the end of the driven plate (24), and the rotating plate (23) is connected to the collar (21) by a rigid pull rope (22); The stroke adjustment assembly includes a stroke adjustment plate (27) and an adjustment bolt (29). The stroke adjustment plate (27) is slidably installed in the slide groove (25) and located on the side of the driven plate (24) near the pedal (18). The stroke adjustment plate (27) can limit the pedal stroke of the pedal (18) by limiting the sliding stroke of the driven plate (24). The slide groove (25) is provided with a plurality of threaded holes (30) spaced apart along the extension direction of the slide groove (25). The stroke adjustment plate (27) can be disassembled and assembled with the threaded holes (30) at different positions by the adjustment bolt (29) to adjust the sliding stroke level of the driven plate (24).

9. The rehabilitation training device for the prevention and treatment of lower extremity venous thrombosis according to claim 8, characterized in that, The travel adjustment component further includes a prompting component, the prompting component comprising: Button (28), the button (28) is located on the side of the stroke adjustment plate (27) facing the driven plate (24), and can contact and sense the driven plate (24); Indicator light (31) is disposed on the protective shell (1) and is communicatively connected to the button (28). The indicator light (31) can be automatically turned on when the actuated plate (24) contacts the button (28) and automatically turned off after the actuated plate (24) separates from the button (28).

10. The rehabilitation training device for the prevention and treatment of lower extremity venous thrombosis according to claim 5, characterized in that, The mounting structure includes: A retaining ring (11) is fixedly fitted onto the outside of the sheath (1); The movable ring (12) is movably fitted outside the sheath (1) and forms a sliding pair with the sheath (1). The movable ring (12) is fixedly connected to the connecting rod (14). An adjusting screw (13) is provided, one end of which is rotatably connected to the fixed ring (11), and the other end of which passes through the moving ring (12) and is threadedly connected to the moving ring (12). Rotating the adjusting screw (13) can drive the moving ring (12) and the fixed ring (11) to move closer to each other or further away from each other.

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