Knee joint function rehabilitation treatment chair

Abstract

The invention provides a knee joint function rehabilitation treatment chair which comprises a chair support, two thigh supports are arranged on the chair face of the chair support and located on the two sides of the central axis of the chair support respectively, and the two thigh supports are used for restraining the two thighs of a patient respectively; a suspension hinge piece is arranged at the bottom of the seat support and under each thigh support, each suspension hinge piece is provided with a vertical supporting frame capable of swinging front and back, each vertical supporting frame is provided with a supporting swing arm, and the supporting swing arms can swing left and right along the connecting positions of the vertical supporting frames and the supporting swing arms. And the swing angle of the support swing arm can be limited. During use, the thigh support is arranged at the top of the seat support to limit the thighs of a patient, then the shank support is used for limiting the shanks of the patient, and the angles of the supporting swing arms are adjusted inwards or outwards to limit the shanks of the patient, so that the varus or valgus of the legs of the patient can be recovered and corrected.

Description

Technical Field

[0001] The present invention relates to the technical field of knee joint rehabilitation, in particular to a knee joint functional rehabilitation treatment chair. Background Art

[0002] Knee dysfunction is primarily caused by a series of factors, including deviations in lower limb force alignment, damage to the knee bones and structures, and abnormal movement patterns. It typically manifests as calf valgus or inversion. Currently, knee dysfunction can only be recovered and treated through simple self-exercise, functional training, and surgical correction. However, these methods are time-consuming and labor-intensive, making them difficult for many people to adhere to long-term, resulting in poor recovery outcomes. While surgical correction offers excellent recovery results, a minority of patients ultimately forgo it due to fear of surgery, high surgical costs, and postoperative rehabilitation.

[0003] At present, traditional mechanical correction instruments or correction belts on the market are generally attached to correction chairs or correction beds. The target audience is only suitable for general hip or ankle joint function abnormalities caused by joint injuries and joint space imbalance problems, but not for lower limb force line deviation, articular cartilage degeneration, ligament injury, congenital genes or acquired bad exercise posture, improper living habits that lead to joint bone and structure changes, and ultimately lead to the internal and external collateral ligaments of the knee joint being in an abnormal length state for a long time, resulting in knee joint space imbalance and knee varus and varus problems; secondly, traditional correction instruments can only be attached to large correction chairs or correction beds, which are inconvenient to operate and time-consuming and labor-intensive.

[0004] Therefore, the present application provides a knee joint functional rehabilitation treatment chair, which is used to improve and restore the problem of knee valgus caused by imbalance of joint space due to thinning and shrinking of cartilage and meniscus caused by degeneration of articular cartilage and meniscus. Summary of the Invention

[0005] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide a knee joint functional rehabilitation treatment chair to solve the problem mentioned in the prior art that the existing treatment and rehabilitation equipment is not suitable for knee varus and valgus rehabilitation.

[0006] To achieve the above-mentioned and other related purposes, the present invention provides a knee joint functional rehabilitation treatment chair, comprising a seat frame, wherein two thigh leg supports are respectively provided on a seat surface of the seat frame on both sides of the central axis of the seat frame, the two thigh leg supports being used to restrain the patient's two thighs respectively;

[0007] A suspension hinge is provided at the bottom of the seat frame, directly below each thigh leg rest, each suspension hinge is provided with a vertical support frame that can swing forward and backward, each vertical support frame is provided with a support swing arm, the support swing arm can swing left and right along the connection between the vertical support frame and the support swing arm, and the swing angle of the support swing arm can be limited;

[0008] The front sides of all the support swing arms are provided with calf supports, which can restrain the patient's calves.

[0009] Preferably, chair legs are provided at the bottom of the seat frame to support the seat frame, a control box is provided between the seat frame and the chair legs, a driving device and a controller are provided inside the control box, and the driving device is used to drive the swing amplitude of the support swing arm.

[0010] Preferably, the driving devices inside the control box are a first motor and a second motor, and the first motor and the second motor can be controlled separately by the controller;

[0011] The output ends of the first motor and the second motor are both hinged with power relay rods, and the two support swing arms are respectively hinged with the two power relay rods.

[0012] Preferably, the power relay rod comprises an outer covering cylinder, a rotatable power relay cylinder is provided inside the outer covering cylinder, two driving rods are inserted inside the power relay cylinder, and the two driving rods can slide and retract inside the power relay cylinder;

[0013] Two ends of a driving rod assembly composed of two driving rods are respectively hinged to the output end of the driving device and the supporting swing arm.

[0014] Preferably, the power relay cylinder comprises a through cylinder with openings at both ends, and the interior of the through cylinder is provided with internal teeth;

[0015] The driving rod includes an intermediate rod body, one end of which is provided with a force-bearing gear, which engages with the internal teeth, and the other end of the intermediate rod body is provided with a hinged head, which extends to the outside of the outer covering tube and is hinged to the output end of the driving device or the supporting swing arm.

[0016] Preferably, all the thigh support legs are provided with thigh restraint airbags, and all the calf support legs are provided with calf restraint airbags.

[0017] The control box is also provided with an inflation device inside, which includes a first air pump and a second air pump. Both the first air pump and the second air pump can be controlled individually by the controller. The first air pump and the second air pump are used to inflate and deflate the thigh restraint airbag and the calf restraint airbag respectively.

[0018] Preferably, the thigh restraint airbag and the calf restraint airbag can extend from the openings of the thigh leg support and the calf leg support respectively after being inflated.

[0019] Preferably, a graduated plate is provided at the bottom of the vertical support frame, a scale indicator groove with an arc is provided on the front of the graduated plate, and the bottom of the support swing arm extends into the scale indicator groove;

[0020] The maximum swing amplitude of the supporting swing arm is limited by the scale indicating groove.

[0021] Preferably, a counterweight mounting rod is provided on the back side of the dividing plate, and a counterweight is detachably mounted on the counterweight mounting rod.

[0022] Preferably, the knee joint functional rehabilitation chair further includes one or more of the following technical features:

[0023] A) The bottom of the control box is provided with chair legs as lifting legs, and the lifting legs are driven by pneumatic telescopic rods;

[0024] B) the outer surface of the calf support is provided with a lifting connection frame, the lifting connection frame can slide up and down on the outer surface of the support swing arm, and the lifting connection frame can be fixed by a fastener after sliding to a specified height;

[0025] C) Storage boxes are provided on both sides of the seat frame, and a remote control controller is provided inside each storage box. Each remote control controller is connected to the controller signal, and each remote control controller is used to control the driving device and inflation device on the same side respectively.

[0026] As described above, the knee joint functional rehabilitation treatment chair of the present invention has the following beneficial effects:

[0027] 1. The present invention limits the patient's thigh by arranging a thigh leg support on the top of the seat frame, and then limits the patient's calf by using a calf leg support, and limits the patient's calf by adjusting the angle of the support swing arm inward or outward, thereby realizing rehabilitation correction of the inversion or valgus of the patient's legs.

[0028] 2. The present invention provides a suspension hinge at the bottom of the seat frame for articulating the vertical support frame, so that the vertical support frame can swing back and forth. Therefore, while the patient is correcting his legs, the patient can lift and lower his feet to perform rehabilitation training for varicose knees, thereby achieving a functional diversification effect.

[0029] 3. The present invention arranges a first motor and a second motor inside the control box to control the two support swing arms respectively, so that correction can be performed separately according to the degree of inversion or eversion of the patient's legs, thereby improving the accuracy of correction and rehabilitation, and driving the support swing arms by motors is more convenient than manual adjustment.

[0030] At the same time, the power of the first motor and the second motor is transmitted to the support swing arm respectively through the retractable power relay rod. During the rehabilitation training, the patient only needs to keep the support swing arm vertical to adjust the angle of the support swing arm at any time. The support swing arm will not be disconnected from the first motor and the second motor due to the upside down flipping of the vertical support frame, which requires reconnection when adjusting the angle of the support swing arm, thereby further improving the convenience of use.

[0031] 4. The present invention provides lifting chair legs and a lifting connecting frame on the outer surface of the calf leg support, so that the overall height of the device can be adjusted, and the upper and lower heights of the calf leg support can be adjusted, so as to adapt to people of different heights and different leg lengths, thereby improving the applicability of the equipment.

[0032] At the same time, the present invention arranges a thigh restraint airbag inside the thigh leg support and a calf restraint airbag inside the calf leg support. When restraining the patient's legs, the thigh restraint airbag and the calf restraint airbag are inflated to fill the gap between the thigh leg support, the calf leg support and the legs, thereby improving the capacity of the thigh leg support and the calf leg support to the legs and being adaptable to patients with different leg diameters.

[0033] 5. The present invention provides a dividing plate below the vertical support frame, so that the angle of the support swing arm can be adjusted more accurately. At the same time, the lower end of the support swing arm extends to the scale indicator groove of the dividing plate. When the support swing arm adjusts the angle, the scale indicator groove can limit the maximum angle of the support swing arm to avoid the support swing arm causing harm to the patient due to excessive angle.

[0034] 6. The present invention sets a counterweight mounting rod on the back of the dividing plate and sets a detachable counterweight on the counterweight mounting rod. When performing leg lifting training, the counterweight can be increased by cooperating with the counterweight mounting rod and the counterweight to improve the training effect.

[0035] At the same time, it can adapt to patients with different leg strength by replacing weights of different weights, thereby improving adaptability and safety.

[0036] 7. The present invention has a simple overall structure and a small size, and has the advantages of simple preparation process and low cost. It can be used in medical places and at home, and is more convenient to use than existing large-scale equipment.

[0037] Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value. BRIEF DESCRIPTION OF THE DRAWINGS

[0038] Figure 1 Shown is a schematic structural diagram of the present invention.

[0039] Figure 2 Shown as the present invention Figure 1 A magnified view of the structure at point A.

[0040] Figure 3 Shown is a side view of the structure of the present invention.

[0041] Figure 4 Shown is a rear view of the structure of the present invention.

[0042] Figure 5 Shown is a schematic diagram of the structure inside the control box of the present invention.

[0043] Figure 6 Shown is a schematic structural diagram of the power relay rod of the present invention.

[0044] Figure 7 Shown is a structural cross-sectional view of the power relay rod of the present invention.

[0045] Figure 8 Shown is a structural cross-sectional view of the power relay cylinder of the present invention.

[0046] Figure 9 Shown is a schematic structural diagram of the driving rod of the present invention.

[0047] Component number description:

[0048] 1. Seat bracket; 11. Storage box;

[0049] 2. Control box; 21. First air pump; 22. Second air pump; 23. First motor; 24. Second motor; 25. Controller;

[0050] 3. Lifting chair legs;

[0051] 4. Thigh support; 41. Thigh restraint airbag;

[0052] 5. Suspension hinges;

[0053] 6. Vertical support frame; 61. Indexing plate; 62. Counterweight mounting rod; 63. Counterweight;

[0054] 7. Support swing arm;

[0055] 8. Calf support; 81. Calf restraint airbag; 82. Lifting connection frame;

[0056] 9. Power relay rod; 91. Outer covering tube; 92. Power relay tube; 921. Through tube body; 922. Internal teeth; 93. Drive rod; 931. Intermediate rod body; 932. Force-bearing gear; 933. Articulated joint;

[0057] 10. Remote control controller. DETAILED DESCRIPTION

[0058] The following describes the implementation of the present invention through specific embodiments. People skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0059] See also Figures 1 to 9 . It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the limiting conditions for the implementation of the present invention. Therefore, they have no substantive technical significance. Any modification of the structure, change in the proportional relationship or adjustment of the size should still fall within the scope of the technical content disclosed by the present invention without affecting the efficacy and purpose that can be achieved by the present invention. At the same time, the terms such as "upper", "lower", "left", "right", "middle" and "one" quoted in this specification are only for the convenience of description, and are not used to limit the scope of the implementation of the present invention. Changes or adjustments in their relative relationships should also be regarded as the scope of the implementation of the present invention without substantially changing the technical content.

[0060] like Figure 1-Figure 3 As shown, the present invention provides a knee joint functional rehabilitation treatment chair, comprising a seat frame 1 with a backrest for a patient to sit on. Two thigh and leg rests 4 are symmetrically arranged on the seat surface of the seat frame 1 about the central axis of the seat frame 1. When the patient sits on the seat frame 1, the two thigh and leg rests 4 are used to restrain the patient's thighs and achieve positioning of the thighs. This prevents the patient's thighs from shifting during rehabilitation training, preventing corrective treatment.

[0061] The bottom of the seat frame 1 is provided with chair legs to support the seat frame 1 to adapt to the height of the patient, so that the patient can sit comfortably and the legs can be relatively relaxed.

[0062] At the bottom of the seat frame 1, a suspension hinge 5 is provided directly below each thigh leg rest 4. Each suspension hinge 5 is provided with a vertical support frame 6 that can swing back and forth. Each vertical support frame 6 is provided with a support swing arm 7, which can swing left and right along the connection between the vertical support frame 6 and the support swing arm 7. The swing angle of the support swing arm 7 can be limited. The front of each support swing arm 7 is provided with a calf leg rest 8, which can restrain the patient's calf. When correcting the leg angle, the patient's calf is placed in the calf leg rest 8 and restrained, so that the patient's thigh and calf cannot move at will. After the patient's leg is restrained, the inversion or valgus of the patient's leg can be corrected by adjusting the swing angle of the support swing arm 7 and positioning it. While correcting the inversion and valgus of the leg, the patient can perform leg function rehabilitation training by lifting the leg, thereby realizing the functional diversification of correction and rehabilitation training.

[0063] like Figure 1 、 Figure 3 and Figure 4 As shown, in some embodiments of the present invention, a control box 2 is disposed between the chair frame 1 and the chair legs. Control box 2 houses a drive device and a controller 25, which is connected to an external power source. The drive device is used to control the swinging amplitude of the support arm 7, which is more convenient than manually adjusting the angle of the support arm 7.

[0064] The controller 25 mentioned above can be an ARM (Advanced RISC Machines) controller, an FPGA (Field Programmable Gate Array) controller, a SoC (System on Chip) controller, a DSP (Digital Signal Processing) controller, or an MCU (Microcontroller Unit) controller, etc., and has a device with signal logic control and equipment start and stop control.

[0065] like Figure 3 and Figure 5 As shown, in some embodiments of the present invention, the driving devices inside the control box 2 are respectively a first motor 23 and a second motor 24. The first motor 23 and the second motor 24 can be independently controlled by a controller 25, so that the first motor 23 and the second motor 24 can work asynchronously. The output ends of the first motor 23 and the second motor 24 are both hinged with a power relay rod 9, and the two support swing arms 7 are respectively hinged with the two power relay rods 9. During use, the angles of the two support swing arms 7 can be adjusted separately according to the degree of deformation of the patient's two legs. A more precise correction effect is achieved.

[0066] like Figure 6 and Figure 7As shown, in some embodiments, the power relay rod 9 of the present invention includes an outer covering tube 91, within which is disposed a rotatable power relay tube 92. Two drive rods 93 are inserted into the power relay tube 92, and the two drive rods 93 can slide and retract within the power relay tube 92. When one drive rod 93 is driven, the driven drive rod 93 transmits power to the power relay tube 92, thereby driving the other drive rod 93 to rotate through the power relay tube 92, thereby achieving power transmission. The two drive rods 93 forming the drive rod assembly are respectively hinged to the output end of the drive device and the support swing arm 7. When the patient performs leg lift training, the angle of the entire power relay rod 9 can change according to the swing of the vertical support frame 6, and the two drive rods 93 can slide within the power relay tube 92 to change the length of the power relay rod 9. When the angle of the support swing arm 7 needs to be further adjusted, the power transmission between the two drive rods 93 can be achieved by simply lowering the leg to keep the support swing arm 7 vertical. The convenience of adjusting the angle of the support swing arm 7 can be improved, and the power relay rod 9 will not cause motion interference to the up and down swinging of the vertical support frame 6.

[0067] like Figure 8 and Figure 9 As shown, in some embodiments, the power relay cylinder 92 of the present invention includes a through cylinder 921 with openings at both ends, and an internal tooth 922 is provided inside the through cylinder 921. The driving rod 93 includes an intermediate rod body 931, and a force-bearing gear 932 is provided at one end of the intermediate rod body 931, and the force-bearing gear 932 is meshed with the internal tooth 922. The other end of the intermediate rod body 931 is provided with a hinge joint 933, which extends to the outside of the outer covering cylinder 91 and is hinged to the output end of the driving device or the support swing arm 7. When the intermediate rod body 931 is driven to slide inside the through cylinder 921, the force-bearing gear 932 and the internal tooth 922 will always remain in meshing state. When the middle rod body 931 on one side rotates, the torque will be transmitted to the through cylinder 921 through the internal teeth 922, causing the through cylinder 921 to rotate, and then transmitted to the middle rod body 931 on the other side through the internal teeth 922, realizing power transmission, so that the middle rod bodies 931 at both ends can transmit power at any position in the through cylinder 921.

[0068] like Figure 1 and Figure 5 As shown, in some embodiments of the present invention, all thigh leg supports 4 are internally provided with thigh restraint airbags 41 , and all calf leg supports 8 are internally provided with calf restraint airbags 81 .

[0069] An inflation device is also provided inside the control box 2. The inflation device is a first air pump 21 and a second air pump 22. The first air pump 21 and the second air pump 22 inflate and deflate the thigh restraint airbag 41 and the calf restraint airbag 81 respectively through pipelines. When the thigh restraint airbag 41 and the calf restraint airbag 81 are inflated, they will fill the gaps between the inner wall of the thigh leg support 4 and the thigh, and between the inner wall of the calf leg support 8 and the calf, so that the patient's legs are restricted. At the same time, patients with different leg diameters can be restrained. The first air pump 21 and the second air pump 22 can both be individually controlled by the controller 25, so that the thigh restraint airbag 41 and the calf restraint airbag 81 can be inflated to different degrees according to the thickness of the thigh and calf. To improve safety, the first air pump 21 and the second air pump 22 can be equipped with a pressure sensing module to monitor the pressure of the thigh restraint airbag 41 and the calf restraint airbag 81 to avoid overinflation of the thigh restraint airbag 41 and the calf restraint airbag 81 and causing discomfort to the patient.

[0070] like Figure 1 As shown, in some embodiments of the present invention, after being inflated, the thigh restraint airbag 41 and the calf restraint airbag 81 can extend from the openings of the thigh leg support 4 and the calf leg support 8, respectively. They are used to fill the openings of the thigh leg support 4 and the calf leg support 8, thereby reducing the openings of the thigh leg support 4 and the calf leg support 8 and preventing the patient's legs from escaping from the thigh leg support 4 and the calf leg support 8. At the same time, when the gaps between the patient's legs and the thigh leg support 4 and the calf leg support 8 are filled, excess air will move toward the openings of the thigh leg support 4 and the calf leg support 8, thereby reducing pressure on the patient's legs.

[0071] like Figure 1 As shown, in some embodiments of the present invention, a graduated plate 61 is provided at the bottom of the vertical support frame 6. A curved graduated indicator slot is provided on the front of the graduated plate 61. The graduations on the graduated indicator slot allow accurate reading of the swing range of the support arm 7, improving the accuracy of one-step correction. The bottom of the support arm 7 extends into the graduated indicator slot, and the maximum swing range of the support arm 7 is limited by the graduated indicator slot to prevent patient or operator error from causing the support arm 7 to swing at an excessive angle, potentially injuring the patient.

[0072] like Figure 3 and Figure 4 As shown, in some embodiments of the present invention, a weight mounting rod 62 is provided on the back of the index plate 61. Weights 63 are detachably mounted on the weight mounting rod 62 via a threaded connection or other means. Weights 63 are available in a variety of weights. Patients can adjust the weights 63 based on their leg recovery and the user population to meet their rehabilitation training needs.

[0073] like Figure 1 、 Figure 4 As shown, in some embodiments, the present invention further includes one or more of the following technical features:

[0074] The chair legs at the bottom of the A control box 2 are lift legs 3, which are driven by pneumatic telescopic rods to rise and fall, so that the height of the seat frame 1 and the ground can be adjusted according to the patient's rise, thereby improving the adaptability of the user group.

[0075] B. The outer surface of the calf support 8 is provided with a lifting connecting frame 82, which can slide up and down on the outer surface of the support swing arm 7. After the lifting connecting frame 82 slides to a specified height, it can be fixed by fasteners to adapt to patients with different leg lengths.

[0076] Storage boxes 11 are provided on both sides of the C-seat frame 1, and a remote control controller 10 is provided inside each storage box 11. Each remote control controller 10 is connected to the controller 25 by signal, and each remote control controller 10 is used to control the driving device and the inflation device on the same side respectively. The patient can control the driving device and the inflation device respectively through the remote control controller 10, which further improves the convenience of use. And the two storage boxes 11 are used to control the swing amplitude of the support swing arms 7 on both sides and the operation of the air pump respectively. Each remote control controller 10 is provided with left and right adjustment buttons for controlling the left and right swing of the support swing arm 7 on the same side, and two air pump control buttons for controlling the inflation and deflation of the thigh restraint airbag 41 and the calf restraint airbag 81 respectively, so as to improve the diversity of control and the different needs of rehabilitation training.

[0077] The specific use process of the present invention is as follows:

[0078] The patient sits on the seat support 1 and places the thighs of both legs inside the thigh leg support 4 and the calves inside the calf leg support 8;

[0079] The thigh restraint airbags 41 and calf restraint airbags 81 on both sides are activated by the storage box 11 to restrain the thighs and calves;

[0080] Start the first motor 23 and the second motor 24 respectively, adjust the angles of the support swing arms 7 on both sides according to the needs, and stop to position the adjusted angles, so as to achieve leg correction;

[0081] The patient can lift his legs as needed, and the vertical support frame 6 rotates up and down with the hinge point of the suspension hinge 5 as the axis to achieve leg rehabilitation training.

[0082] In summary, the knee joint functional rehabilitation treatment chair of the present invention limits the patient's thigh by setting a thigh leg support 4 on the top of the seat frame 1, and then limits the patient's calf by the calf leg support 8, and limits the patient by adjusting the angle of the support swing arm 7 inward or outward, so as to achieve rehabilitation correction of the inversion or eversion of the patient's legs.

[0083] The present invention provides a suspension hinge 5 at the bottom of the seat frame 1 for articulating the vertical support frame 6, so that the vertical support frame 6 can swing back and forth. Therefore, while the patient corrects his legs, the patient can lift and lower his feet to perform rehabilitation training for varicose knees, thereby achieving a functional diversification effect.

[0084] The present invention arranges a first motor 23 and a second motor 24 inside the control box 2 for controlling the two support swing arms 7 respectively, so that correction can be performed separately according to the degree of inversion or eversion of the patient's legs, thereby improving the accuracy of correction and rehabilitation, and driving the support swing arms 7 by motors is more convenient than manual adjustment.

[0085] At the same time, the power of the first motor 23 and the second motor 24 is transmitted to the support swing arm 7 respectively through the retractable power relay rod 9. During the rehabilitation training, the patient only needs to keep the support swing arm 7 vertical to adjust the angle of the support swing arm 7 at any time. The support swing arm 7 will not be disconnected from the first motor 23 and the second motor 24 due to the upside down flipping of the vertical support frame 6, which will require reconnection when adjusting the angle of the support swing arm 7, thereby further improving the convenience of use.

[0086] The present invention provides a lifting chair leg 3 and a lifting connecting frame 82 on the outer surface of the calf leg support 8, so that the overall height of the device can be adjusted, and the upper and lower heights of the calf leg support 8 can be adjusted, so as to adapt to people of different heights and leg lengths, thereby improving the applicability of the equipment.

[0087] At the same time, the present invention sets a thigh restraint airbag 41 inside the thigh leg support 4 and a calf restraint airbag 81 inside the calf leg support 8. When restraining the patient's legs, the thigh restraint airbag 41 and the calf restraint airbag 81 are inflated to fill the gap between the thigh leg support 4 and the calf leg support 8 and the legs, thereby improving the capacity of the thigh leg support 4 and the calf leg support 8 to restrain the legs and being adaptable to patients with different leg diameters.

[0088] The present invention provides a dividing plate 61 below the vertical support frame 6, so that the angle of the support swing arm 7 can be adjusted more accurately. At the same time, the lower end of the support swing arm 7 extends to the scale indicator groove of the dividing plate 61. When the angle of the support swing arm 7 is adjusted, the scale indicator groove can limit the maximum angle of the support swing arm 7 to avoid the support swing arm 7 from causing harm to the patient due to excessive angle.

[0089] The present invention sets a weight mounting rod 62 on the back of the dividing plate 61 and sets a detachable weight 63 on the weight mounting rod 62. When performing leg lifting training, the weight mounting rod 62 and the weight 63 can be coordinated to increase the weight and improve the training effect.

[0090] At the same time, the weight objects 63 of different weights can be replaced to adapt to patients with different leg strengths, thereby improving adaptability and safety.

[0091] The present invention has a simple overall structure, a small volume, a simple preparation process, and a low cost. It can be used in medical places and homes and is more convenient to use than existing large-scale equipment.

[0092] Therefore, the present invention effectively overcomes various shortcomings in the prior art and has high industrial utilization value.

[0093] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical principles disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A knee joint functional rehabilitation treatment chair, characterized in that: The invention comprises a seat frame (1), wherein two thigh leg supports (4) are respectively provided on the seat surface of the seat frame (1) on both sides of the central axis of the seat frame (1), and the two thigh leg supports (4) are respectively used to restrain the two thighs of the patient; At the bottom of the seat support (1), a suspension hinge (5) is provided just below each thigh leg support (4), each suspension hinge (5) is provided with a vertical support frame (6) that can swing forward and backward, each vertical support frame (6) is provided with a support swing arm (7), the support swing arm (7) can swing left and right along the connection between the vertical support frame (6) and the support swing arm (7), and the swing angle of the support swing arm (7) can be limited; The front sides of all the support swing arms (7) are provided with calf supports (8), and the calf supports (8) can restrain the patient's calves.

2. The knee joint functional rehabilitation treatment chair according to claim 1, characterized in that: The bottom of the seat frame (1) is provided with chair legs for supporting the seat frame (1); a control box (2) is provided between the seat frame (1) and the chair legs; a driving device and a controller (25) are provided inside the control box (2); the driving device is used to drive the support swing arm (7) to swing.

3. The knee joint functional rehabilitation treatment chair according to claim 2, characterized in that: The driving devices inside the control box (2) are respectively a first motor (23) and a second motor (24), and the first motor (23) and the second motor (24) can be controlled individually by a controller (25); The output ends of the first motor (23) and the second motor (24) are both hingedly connected to a power relay rod (9), and the two support swing arms (7) are respectively hingedly connected to the two power relay rods (9).

4. The knee joint functional rehabilitation treatment chair according to claim 3, characterized in that: The power relay rod (9) comprises an outer covering tube (91), a rotatable power relay tube (92) is provided inside the outer covering tube (91), two driving rods (93) are inserted inside the power relay tube (92), and the two driving rods (93) can slide and retract inside the power relay tube (92); The two ends of the driving rod assembly composed of two driving rods (93) are respectively hinged to the output end of the driving device and the supporting swing arm (7).

5. The knee joint functional rehabilitation treatment chair according to claim 4, characterized in that: The power relay cylinder (92) comprises a through cylinder (921) with openings at both ends, and internal teeth (922) are provided inside the through cylinder (921); The driving rod (93) comprises an intermediate rod body (931), one end of the intermediate rod body (931) is provided with a force-bearing gear (932), the force-bearing gear (932) is engaged with the internal teeth (922), and the other end of the intermediate rod body (931) is provided with a hinge joint (933), the hinge joint (933) extends to the outside of the outer covering tube (91) and is hinged to the output end of the driving device or the supporting swing arm (7).

6. The knee joint functional rehabilitation treatment chair according to claim 2, characterized in that: All the thigh support legs (4) are provided with thigh restraint airbags (41) inside, and all the calf support legs (8) are provided with calf restraint airbags (81) inside; The control box (2) is further provided with an inflation device, which comprises a first air pump (21) and a second air pump (22). The first air pump (21) and the second air pump (22) can be individually controlled by a controller (25). The first air pump (21) and the second air pump (22) are used to inflate and deflate the thigh restraint airbag (41) and the calf restraint airbag (81), respectively.

7. The knee joint functional rehabilitation treatment chair according to claim 6, characterized in that: After being inflated, the thigh restraint airbag (41) and the calf restraint airbag (81) can extend from the openings of the thigh leg support (4) and the calf leg support (8) respectively.

8. The knee joint functional rehabilitation treatment chair according to claim 1, characterized in that: The bottom of the vertical support frame (6) is provided with a dividing plate (61), the front of the dividing plate (61) is provided with a scale indicator groove with an arc, and the bottom of the supporting swing arm (7) extends into the scale indicator groove; The maximum swing amplitude of the supporting swing arm (7) is limited by the scale indicating groove.

9. The knee joint functional rehabilitation treatment chair according to claim 8, characterized in that: A counterweight mounting rod (62) is provided on the back of the indexing plate (61), and a counterweight (63) is detachably mounted on the counterweight mounting rod (62).

10. The knee joint functional rehabilitation chair according to any one of claims 6 to 9, characterized in that: The knee joint functional rehabilitation treatment chair also includes one or more of the following technical features: A) The bottom of the control box (2) is provided with a chair leg as a lifting chair leg (3), and the lifting chair leg (3) is driven by a pneumatic telescopic rod to rise and fall; B) The outer surface of the calf support (8) is provided with a lifting connection frame (82), and the lifting connection frame (82) can slide up and down on the outer surface of the support swing arm (7), and the lifting connection frame (82) can be fixed by a fastener after sliding to a specified height; C) Storage boxes (11) are provided on both sides of the seat support (1), and a remote control controller (10) is provided inside each storage box (11). Each remote control controller (10) is connected to the controller (25) by signal, and each remote control controller (10) is used to control the driving device and the inflation device on the same side respectively.

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