Knee pneumatic decompression orthosis with sensor

Abstract

The application relates to a knee joint pneumatic decompression type orthopedic brace with a sensor, which comprises an orthopedic body, a fastener, an air bag unit, a first pressure sensor, a second pressure sensor and an angle sensor, wherein when the ratio of the plantar pressure transmitted by the first pressure sensor and the second pressure sensor is 0.5-2.0, the air pump does not work; when the ratio of the plantar pressure transmitted by the first pressure sensor and the second pressure sensor is not 0.5-2.0, the air pump controls the air inflation of the air bags located on the two sides of the knee joint; and when the bending angle of the knee joint transmitted by the angle sensor is 60-150 DEG, the air pump controls the air inflation of the air bags located on the back side of the knee joint. Compared with the prior art, the application can accurately and real-timely adjust the pressure of the medial and lateral sides of the knee joint and the pressure of the patellofemoral joint, correct the force line during the walking or movement of the knee joint, and relieve the symptoms of knee arthritis.

Description

Technical Field

[0001] This invention belongs to the field of orthotic technology, and in particular relates to a knee joint pneumatic decompression orthotic brace with a sensor. Background Technology

[0002] Knee osteoarthritis is a common disabling disease affecting approximately 250 million people worldwide. In China, the prevalence is about 8%, with an 80% prevalence rate among people over 75 years of age. Knee osteoarthritis is a chronic degenerative disease characterized by cartilage wear and osteophyte formation. Most patients with knee osteoarthritis experience pain due to unilateral compartment wear caused by knee deformities (varus or valgus), and some even have patellofemoral joint wear. Addressing the imbalance in pressure distribution between the joint compartments and the patellofemoral joint can prevent premature joint replacement and improve patients' quality of life. The commonly used clinical method is wearing a knee brace to maintain normal joint alignment. However, because the type and severity of joint deformities vary among patients, existing braces are often insufficient to meet the deformity correction requirements of different patients. Clinically, conservative treatment with knee decompression braces is frequently recommended to reduce pressure on the articular cartilage, relieve pain, delay knee degeneration and surgery, and improve patients' quality of life.

[0003] Most of the decompression braces currently available are unilateral decompression braces used to treat medial compartment knee osteoarthritis, including valgus decompression braces, degree-of-freedom decompression braces, and pneumatic decompression braces.

[0004] These types of decompression braces are based on the three-point biomechanics principle, reducing pressure on the medial cartilage by transferring the load to the lateral compartment of the knee joint. However, this load transfer increases pressure on the contralateral compartment, leading to narrowing of the contralateral joint space and cartilage wear. These decompression braces cannot fully meet the needs of many patients with knee osteoarthritis, as most patients with severe knee osteoarthritis (>90%) have patellofemoral cartilage wear in addition to varus (or valgus) deformity. Furthermore, these braces cannot precisely control medial and lateral pressure, are relatively mechanical and passive in use, offer limited and complex treatment options, and are prone to loosening during walking, resulting in poor efficacy.

[0005] For example, CN 112972090 A discloses a brace with support rods on both sides, which can achieve inward and outward correction by adjusting the angle of the inner and outer support rods. However, it cannot accurately achieve inward and outward adjustment, nor can it perform real-time automatic adjustment, which is inconvenient. Summary of the Invention

[0006] The purpose of this invention is to overcome the defects of the prior art and provide a sensor-equipped pneumatic decompression orthotic brace for the knee joint.

[0007] The objective of this invention can be achieved through the following technical solutions:

[0008] This invention provides a knee joint pneumatic decompression orthotic brace with sensors, comprising:

[0009] The orthotic body forms an orthotic cavity that fits snugly against the knee joint;

[0010] Fasteners are provided at both ends of the orthotic body and are used to fix the orthotic body to the knee joint;

[0011] An airbag unit includes several airbags that are closely attached to both sides of the knee joint and behind the knee joint, and several air pumps that are connected to the airbags and control the inflation and deflation of the airbags.

[0012] A first pressure sensor is located on the sole of the foot to transmit sole pressure signals and is connected to the airbag unit.

[0013] A second pressure sensor, symmetrically arranged with the first pressure sensor on the sole of the foot, is used to transmit sole pressure signals and is connected to the airbag unit; and

[0014] An angle sensor, which is mounted on the orthotic body, is used to measure the bending angle of the knee joint;

[0015] Specifically, when the ratio of the plantar pressure transmitted by the first pressure sensor to that of the second pressure sensor is 0.5-2, the air pump does not work.

[0016] When the ratio of the plantar pressure transmitted by the first pressure sensor and the second pressure sensor is greater than 2, the air pump controls the airbag located on the inside of the knee joint to inflate until the ratio of the plantar pressure transmitted by the first pressure sensor and the second pressure sensor is 0.5-2, at which point the air pump stops working.

[0017] It should be noted that when the ratio of the plantar pressure transmitted by the first pressure sensor to that of the second pressure sensor is greater than 2, the patient's knee joint will exhibit valgus phenomenon.

[0018] When the ratio of the plantar pressure transmitted by the first pressure sensor and the second pressure sensor is less than 0.5, the air pump controls the airbag located on the outside of the knee joint to inflate until the ratio of the plantar pressure transmitted by the first pressure sensor and the second pressure sensor is 0.5-2, at which point the air pump stops working.

[0019] It should be noted that when the ratio of the plantar pressure transmitted by the first pressure sensor to that of the second pressure sensor is less than 0.5, the patient's knee joint will exhibit inversion.

[0020] When the knee flexion angle transmitted by the angle sensor is 60°-150°, the air pump controls the inflation of the airbag located on the back of the knee joint.

[0021] The airbag unit is used to correct varus or valgus of the knee joint.

[0022] Furthermore, the airbag unit also includes several limiting members disposed on both sides of the airbag, the limiting members being used to restrict the protrusion on the side close to the limiting member when the airbag is inflated.

[0023] Furthermore, the airbag unit also includes several processing centers disposed on the orthopedic body, which are used to receive signals output by the first pressure sensor, the second pressure sensor or the angle sensor and output instructions to the air pump to control the inflation or deflation of the air pump.

[0024] Furthermore, the airbag unit also includes a third pressure sensor connected to the airbag, which is used to transmit the pressure inside the airbag to the processing center.

[0025] Furthermore, the fastener includes a first fastener and a second fastener;

[0026] The first fastener is located on the orthotic body near the patient's thigh, and the length of the first fastener is adjustable;

[0027] The second fastener is located on the orthotic body near the patient's lower leg, and the length of the second fastener is adjustable.

[0028] Furthermore, the first fastener includes:

[0029] First fastener body;

[0030] Several first fastener strips are disposed at one end of the first fastener body;

[0031] Several first buckle holes are provided at the other end of the first fastener body;

[0032] Several first forward members, which are disposed at one end of the first latch hole; and

[0033] Several first retractable parts are located at the other end of the first latch hole;

[0034] The first forward member and the first backward member are used to control the first latch bar to move forward or backward in the first latch hole, respectively.

[0035] The second fastener includes:

[0036] Second fastener body;

[0037] Several second fastener strips are disposed at one end of the second fastener body;

[0038] Several second buckle holes are provided at the other end of the second fastener body;

[0039] Several second forward members, which are disposed at one end of the second latch hole; and

[0040] Several second retractable parts are provided at the other end of the second latch hole;

[0041] The second forward member and the second backward member are used to control the second latch bar to move forward or backward in the second latch hole, respectively.

[0042] Furthermore, it also includes:

[0043] The insole, wherein the first pressure sensor and the second pressure sensor are located inside the insole.

[0044] Furthermore, the orthopedic body includes:

[0045] Body part;

[0046] Several connecting portions are provided on the upper and lower sides of the main body; and

[0047] Several mounting parts are provided on the main body;

[0048] The fastener is installed in the connecting part, and the mounting part is used to fix the airbag.

[0049] Furthermore, three airbags are provided, two of which are located on both sides of the knee joint and the other is located on the back of the knee joint.

[0050] Furthermore, the fastener is detachably connected to the orthopedic body.

[0051] This application, based on the patient's plantar pressure sensation during walking, uses a first pressure sensor to transmit plantar pressure signals to precisely adjust the pressure on the inner and outer sides of the knee joint and the patellofemoral joint, thereby correcting the force line of the knee joint during walking or exercise, and thus achieving the goal of alleviating the symptoms of knee osteoarthritis.

[0052] The working principle of this application is as follows:

[0053] First, install the connecting part of the orthotic body with the first and second fasteners. Next, install the three airbags on the mounting part of the orthotic body. Finally, connect the air pump to the airbags and install the angle sensor, the third pressure sensor, and the processing center on the main body of the orthotic body. It should be noted that the angle sensor measures the knee flexion angle. When the angle sensor transmits a knee flexion angle of 60-150°, the air pump controls the inflation of the airbag located behind the knee joint.

[0054] A first pressure sensor and a second pressure sensor are installed inside the insole. The pressure felt on the sole of the foot is transmitted to the processing center through the first and second pressure sensors. The processing center controls the air pump to work. It should be noted that the air pump of this application can be automatically inflated. When the ratio of the sole pressure transmitted by the first pressure sensor to the second pressure sensor is 0.5-2, the air pump does not work, that is, the patient is normal at this time.

[0055] When the ratio of the plantar pressure transmitted by the first pressure sensor and the second pressure sensor is not between 0.5 and 2, the air pump controls the air bladders located on both sides of the knee joint to inflate until the ratio of the plantar pressure transmitted by the first pressure sensor and the second pressure sensor is 0.5-2, at which point the air pump stops working. It should be noted that the first and second pressure sensors are symmetrically arranged inside the insole to ensure accurate pressure measurement on the inner and outer sides of the patient's foot. It should also be noted that while the air pump is inflating, the third pressure sensor monitors the pressure inside the air bladder in real time and transmits this information to the corresponding processing center.

[0056] The first latching bar is inserted unidirectionally into the first latching hole, and the second latching bar is inserted unidirectionally into the second latching hole, thereby fixing the orthotic brace to the patient's knee joint. Check whether the orthotic body fits the patient's skin. If adjustment is needed, it can be adjusted by pressing the first forward and first backward components, the second forward component, and the second forward component.

[0057] Compared with the prior art, the present invention has the following beneficial effects:

[0058] (1) Real-time: Previous braces for knee osteoarthritis were relatively mechanical and passive. Existing technologies require manual adjustment and cannot be adjusted according to pressure changes during walking or exercise. This application can make real-time and precise adjustments based on changes in plantar pressure distribution and feedback from pressure sensors around the knee joint during walking or exercise.

[0059] (2) Effectiveness of treatment: In the past, such products only decompressed the pressure in the medial or lateral compartments. However, many patients with severe knee osteoarthritis also have inflammation of the patellofemoral joint. These patients experience more pain when going up and down stairs. This invention provides an air bladder on the back of the knee joint. During the process of going up and down stairs, the air bladder on the back of the knee joint reduces the pressure on the patellofemoral joint. This invention is the first patellofemoral joint air decompression brace, which provides more comprehensive and effective treatment.

[0060] (3) Initiative: In the past, such products could not adjust the pressure on the inside and outside of the knee joint during walking or exercise, and were prone to loosening during use, resulting in poor effect. This method actively adjusts the pressure through the plantar pressure sensor and the pressure sensor around the knee joint to improve the effect.

[0061] (4) Scientific: The pressure of the foot is transmitted to the control center through the first pressure sensor. After processing by the formula, the pressure of the air bladder around the knee joint is appropriately adjusted to achieve precise control. Attached Figure Description

[0062] Figure 1 This is a schematic diagram of the orthopedic brace in Embodiment 1 of this application.

[0063] Figure 2 This is a schematic diagram of the airbag unit of the orthotic brace in Embodiment 1 of this application.

[0064] Figure 3 This is a schematic diagram of the insole, first pressure sensor, and second pressure sensor of the orthotic brace in Embodiment 1 of this application.

[0065] Figure 4 This is a schematic diagram of the orthotic brace on the posterior side of the knee joint in Embodiment 1 of this application.

[0066] Figure 5 This is a schematic diagram of the first fastener of the orthopedic brace in Embodiment 1 of this application.

[0067] Figure 6 This is a schematic diagram of the second fastener of the orthopedic brace in Embodiment 1 of this application.

[0068] Figure 7 This is a schematic diagram of the orthopedic body of the orthopedic brace in Embodiment 1 of this application.

[0069] Numbering on the map:

[0070] 1-Orthopedic body, 101-Body part, 102-Connecting part, 103-Mounting part, 201-First fastener, 202-Second fastener, 203-First fastener body, 204-First buckle bar, 205-First buckle hole, 206-First forward member, 207-First backward member, 208-Second buckle bar, 209-Second buckle hole, 210-Second forward member, 211-Second backward member, 212-Second fastener body, 3-Airbag unit, 301-Airbag, 302-Air pump, 303-Limiting member, 304-Third pressure sensor, 305-Processing center, 4-First pressure sensor, 5-Insole, 6-Angle sensor, 7-Second pressure sensor. Detailed Implementation

[0071] The present invention will now be described in detail with reference to the accompanying drawings and specific embodiments. These embodiments are based on the technical solution of the present invention and provide detailed implementation methods and specific operating procedures. However, the scope of protection of the present invention is not limited to the following embodiments.

[0072] Unless otherwise specified in this technical solution, the component model, material name, connection structure, control method, and other features are considered to be common technical features disclosed in the prior art.

[0073] In the description of this invention, it should be understood that the terms "upper", "lower", "vertical", "horizontal", "top", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0074] In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified. Furthermore, the terms "installed," "connected," and "linked" should be interpreted broadly; for example, they can refer to a fixed connection, a detachable connection, or an integrated connection; they can refer to a bolted connection or a welded connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art will understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0075] To precisely and in real-time adjust the pressure on the medial and lateral sides of the knee joint and the patellofemoral joint, correct the force line of the knee joint during walking or exercise, and alleviate the symptoms of knee osteoarthritis, this application provides a sensor-equipped pneumatic decompression orthotic brace for the knee joint. The structure of this brace can be found in [reference needed]. Figures 1 to 7 As shown, it includes:

[0076] The orthotic body 1 forms an orthotic cavity that fits snugly against the knee joint;

[0077] Fasteners are provided at both ends of the orthotic body 1 and are used to fix the orthotic body 1 to the knee joint;

[0078] The airbag unit 3 includes several airbags 301 that are closely attached to both sides of the knee joint and behind the knee joint, and several air pumps 302 that are connected to the airbags 301 and control the inflation and deflation of the airbags 301.

[0079] The first pressure sensor 4 is located on the sole of the foot to transmit sole pressure signals and is connected to the airbag unit 3.

[0080] The second pressure sensor 7 is symmetrically arranged with the first pressure sensor 4 on the sole of the foot to transmit sole pressure signals and is connected to the airbag unit 3; and

[0081] An angle sensor 6, which is mounted on the orthotic body, is used to measure the bending angle of the knee joint;

[0082] Specifically, when the ratio of the plantar pressure transmitted by the first pressure sensor 4 to that transmitted by the second pressure sensor 7 is 0.5-2, the air pump 302 does not work.

[0083] When the ratio of the plantar pressure transmitted by the first pressure sensor 4 and the second pressure sensor 7 is greater than 2, the air pump 302 controls the airbag 301 located on the inner side of the knee joint to inflate until the ratio of the plantar pressure transmitted by the first pressure sensor 4 and the second pressure sensor 7 is 0.5-2, at which point the air pump 302 stops working.

[0084] When the ratio of the plantar pressure transmitted by the first pressure sensor 4 and the second pressure sensor 7 is less than 0.5, the air pump 302 controls the airbag 301 located on the outside of the knee joint to inflate until the ratio of the plantar pressure transmitted by the first pressure sensor 4 and the second pressure sensor 7 is 0.5-2, at which point the air pump 302 stops working.

[0085] When the knee flexion angle transmitted by the angle sensor 6 is 60°-150°, the air pump 302 controls the airbag 301 located on the back of the knee joint to inflate.

[0086] The airbag unit is used to correct varus or valgus of the knee joint.

[0087] For some specific implementation methods, please refer to [link / reference]. Figure 1 and Figure 2 As shown, the airbag unit 3 also includes several limiting members 303, which are disposed on both sides of the airbag 301. The limiting members 303 are used to restrict the protrusion on the side close to the limiting member 303 when the airbag 301 is inflated.

[0088] For some specific implementation methods, please refer to [link / reference]. Figure 1 As shown, the airbag unit 3 also includes several processing centers 305 disposed on the orthopedic body 1, which are used to receive signals output by the first pressure sensor 4, the second pressure sensor 7 or the angle sensor 6 and output commands to the air pump 302 to control the inflation or deflation of the air pump 302.

[0089] For more detailed implementation methods, please refer to [link / reference]. Figure 1 and Figure 2 As shown, the airbag unit 3 also includes a third pressure sensor 304 connected to the airbag 301, which is used to transmit the pressure inside the airbag 301 to the processing center 305.

[0090] For some specific implementation methods, please refer to [link / reference]. Figure 1 , Figure 5 and Figure 6 As shown, the fastener includes a first fastener 201 and a second fastener 202;

[0091] The first fastener 201 is located on the side of the orthopedic body 1 near the patient's thigh, and the length of the first fastener 201 is adjustable.

[0092] The second fastener 202 is located on the side of the orthotic body 1 near the patient's lower leg, and the length of the second fastener 202 is adjustable.

[0093] For more detailed implementation methods, please refer to [link / reference]. Figure 1 , Figure 5 and Figure 6 As shown, the first fastener 201 includes:

[0094] First fastener body 203;

[0095] Several first fastener strips 204 are disposed at one end of the first fastener body 203;

[0096] A plurality of first buckle holes 205 are provided at the other end of the first fastener body 203;

[0097] A plurality of first forward advance members 206 are disposed at one end of the first latch hole 205; and

[0098] Several first retractable parts 207 are disposed at the other end of the first latch hole 205;

[0099] The first forward member 206 and the first backward member 207 are used to control the first buckle bar 204 to move forward or backward in the first buckle hole 205, respectively.

[0100] The second fastener 202 includes:

[0101] Second fastener body 212;

[0102] Several second fastener strips 208 are disposed at one end of the second fastener body 212;

[0103] A plurality of second buckle holes 209 are provided at the other end of the second fastener body 212;

[0104] Several second forward members 210 are provided at one end of the second latch hole 209; and

[0105] Several second retractable parts 211 are provided at the other end of the second latch hole 209;

[0106] The second forward member 210 and the second backward member 211 are used to control the second buckle bar 208 to move forward or backward in the second buckle hole 209, respectively.

[0107] For some specific implementation methods, please refer to [link / reference]. Figure 3 As shown, it also includes:

[0108] The insole 5 has the first pressure sensor 4 and the second pressure sensor 7 located inside it.

[0109] For some specific implementation methods, please refer to [link / reference]. Figure 1 and Figure 7 As shown, the orthopedic body 1 includes:

[0110] Body part 101;

[0111] Several connecting portions 102 are provided on the upper and lower sides of the main body portion 101; and

[0112] Several mounting parts 103 are provided on the main body 101;

[0113] The fastener is installed in the connecting part 102, and the mounting part 103 is used to fix the airbag 301.

[0114] For some specific implementation methods, please refer to [link / reference]. Figure 1 and Figure 7 As shown, three airbags 301 are provided, two of which are located on both sides of the knee joint and the other is located on the back of the knee joint.

[0115] For some specific implementation methods, please refer to [link / reference]. Figure 1 As shown, the fastener is detachably connected to the orthopedic body 1.

[0116] Each of the above implementation methods can be implemented individually, or in any combination of two or more.

[0117] The above implementation methods will be described in more detail below with reference to specific embodiments.

[0118] Example 1

[0119] To precisely and in real-time adjust the pressure on the medial and lateral sides of the knee joint and the patellofemoral joint, correct the force line of the knee joint during walking or exercise, and alleviate the symptoms of knee osteoarthritis, this application provides a sensor-equipped pneumatic decompression orthotic brace for the knee joint. The structure of this brace can be found in [reference needed]. Figures 1 to 7 As shown, it includes:

[0120] The orthotic body 1 forms an orthotic cavity that fits snugly against the knee joint;

[0121] Fasteners are provided at both ends of the orthotic body 1 and are used to fix the orthotic body 1 to the knee joint;

[0122] The airbag unit 3 includes several airbags 301 that are closely attached to both sides of the knee joint and behind the knee joint, and several air pumps 302 that are connected to the airbags 301 and control the inflation and deflation of the airbags 301.

[0123] The first pressure sensor 4 is located on the sole of the foot to transmit sole pressure signals and is connected to the airbag unit 3.

[0124] The second pressure sensor 7 is symmetrically arranged with the first pressure sensor 4 on the sole of the foot to transmit sole pressure signals and is connected to the airbag unit 3; and

[0125] An angle sensor 6, which is mounted on the orthotic body, is used to measure the bending angle of the knee joint;

[0126] Specifically, when the ratio of the plantar pressure transmitted by the first pressure sensor 4 to that transmitted by the second pressure sensor 7 is 0.5-2, the air pump 302 does not work.

[0127] When the ratio of the plantar pressure transmitted by the first pressure sensor 4 and the second pressure sensor 7 is greater than 2, the air pump 302 controls the airbag 301 located on the inner side of the knee joint to inflate until the ratio of the plantar pressure transmitted by the first pressure sensor 4 and the second pressure sensor 7 is 0.5-2, at which point the air pump 302 stops working.

[0128] When the ratio of the plantar pressure transmitted by the first pressure sensor 4 and the second pressure sensor 7 is less than 0.5, the air pump 302 controls the airbag 301 located on the outside of the knee joint to inflate until the ratio of the plantar pressure transmitted by the first pressure sensor 4 and the second pressure sensor 7 is 0.5-2, at which point the air pump 302 stops working.

[0129] When the knee flexion angle transmitted by the angle sensor 6 is 60°-150°, the air pump 302 controls the airbag 301 located on the back of the knee joint to inflate.

[0130] The airbag unit is used to correct varus or valgus of the knee joint.

[0131] Please see again. Figure 1 and Figure 2 As shown, the airbag unit 3 also includes several limiting members 303, which are disposed on both sides of the airbag 301. The limiting members 303 are used to restrict the protrusion on the side close to the limiting member 303 when the airbag 301 is inflated.

[0132] Please see again. Figure 1 As shown, the airbag unit 3 also includes several processing centers 305 disposed on the orthopedic body 1, which are used to receive signals output by the first pressure sensor 4, the second pressure sensor 7 or the angle sensor 6 and output commands to the air pump 302 to control the inflation or deflation of the air pump 302.

[0133] Please see again. Figure 1 and Figure 2 As shown, the airbag unit 3 also includes a third pressure sensor 304 connected to the airbag 301, which is used to transmit the pressure inside the airbag 301 to the processing center 305.

[0134] Please see again. Figure 1 , Figure 5 and Figure 6 As shown, the fastener includes a first fastener 201 and a second fastener 202;

[0135] The first fastener 201 is located on the side of the orthopedic body 1 near the patient's thigh, and the length of the first fastener 201 is adjustable.

[0136] The second fastener 202 is located on the side of the orthotic body 1 near the patient's lower leg, and the length of the second fastener 202 is adjustable.

[0137] Please see again. Figure 1 , Figure 5 and Figure 6 As shown, the first fastener 201 includes:

[0138] First fastener body 203;

[0139] Several first fastener strips 204 are disposed at one end of the first fastener body 203;

[0140] A plurality of first buckle holes 205 are provided at the other end of the first fastener body 203;

[0141] A plurality of first forward advance members 206 are disposed at one end of the first latch hole 205; and

[0142] Several first retractable parts 207 are disposed at the other end of the first latch hole 205;

[0143] The first forward member 206 and the first backward member 207 are used to control the first buckle bar 204 to move forward or backward in the first buckle hole 205, respectively.

[0144] The second fastener 202 includes:

[0145] Second fastener body 212;

[0146] Several second fastener strips 208 are disposed at one end of the second fastener body 212;

[0147] A plurality of second buckle holes 209 are provided at the other end of the second fastener body 212;

[0148] Several second forward members 210 are provided at one end of the second latch hole 209; and

[0149] Several second retractable parts 211 are provided at the other end of the second latch hole 209;

[0150] The second forward member 210 and the second backward member 211 are used to control the second buckle bar 208 to move forward or backward in the second buckle hole 209, respectively.

[0151] Please see again. Figure 3 As shown, it also includes:

[0152] The insole 5 has the first pressure sensor 4 and the second pressure sensor 7 located inside it.

[0153] Please see again. Figure 1 and Figure 7 As shown, the orthopedic body 1 includes:

[0154] Body part 101;

[0155] Several connecting portions 102 are provided on the upper and lower sides of the main body portion 101; and

[0156] Several mounting parts 103 are provided on the main body 101;

[0157] The fastener is installed in the connecting part 102, and the mounting part 103 is used to fix the airbag 301.

[0158] Please see again. Figure 1 and Figure 7 As shown, three airbags 301 are provided, two of which are located on both sides of the knee joint and the other is located on the back of the knee joint.

[0159] Please see again. Figure 1 As shown, the fastener is detachably connected to the orthopedic body 1.

[0160] The working principle of this embodiment is as follows:

[0161] See Figure 5 , Figure 6 and Figure 7 First, the connecting part 102 of the orthotic body 1 is installed with the first fastener 201 and the second fastener 202. Next, the three airbags 301 are installed on the mounting part 103 of the orthotic body 1. Finally, the air pump 302 is connected to the airbags 301, and the angle sensor 6, the third pressure sensor 304, and the processing center 305 are respectively installed on the body part 101 of the orthotic body 1. It should be noted that the angle sensor 6 is used to measure the knee joint flexion angle. When the knee joint flexion angle transmitted by the angle sensor 6 is 60-100°, the air pump 302 controls the airbag 301 located behind the knee joint to inflate.

[0162] See Figure 5 A first pressure sensor 4 and a second pressure sensor 7 are installed inside the insole 5. The pressure felt on the sole of the foot is transmitted to the processing center 305 through the first pressure sensor 4 and the second pressure sensor 7. The processing center 305 controls the air pump 302 to work. It should be noted that the air pump 302 can be automatically inflated. When the ratio of the sole pressure transmitted by the first pressure sensor 4 to the second pressure sensor 7 is 0.90-1.25, the air pump 302 does not work, that is, the patient is normal at this time.

[0163] When the ratio of the plantar pressure transmitted by the first pressure sensor 4 and the second pressure sensor 7 is not between 0.90 and 1.25, the air pump 302 controls the air bladders 301 located on both sides of the knee joint to inflate until the ratio of the plantar pressure transmitted by the first pressure sensor 4 and the second pressure sensor 7 is 0.90-1.25, at which point the air pump 302 stops working. It should be noted that the first pressure sensor 4 and the second pressure sensor 7 are symmetrically arranged within the insole 5, ensuring accurate pressure measurement on the inner and outer sides of the patient's foot. It should also be noted that while the air pump 302 is inflating, the third pressure sensor 304 monitors the pressure in the air bladders in real time and transmits this information to the corresponding processing center 305.

[0164] See Figure 5 and Figure 6 The first latching bar 204 is inserted unidirectionally into the first latching hole 205, and the second latching bar 208 is inserted unidirectionally into the second latching hole 209, thereby fixing the orthotic brace to the patient's knee joint. Check whether the orthotic body 1 fits the patient's skin. If adjustment is needed, it can be adjusted by pressing the first forward part 206, the first backward part 207, the second forward part 210, and the second backward part 211.

[0165] The above description of the embodiments is provided to enable those skilled in the art to understand and use the invention. It will be apparent to those skilled in the art that various modifications can be made to these embodiments, and the general principles described herein can be applied to other embodiments without inventive effort. Therefore, the present invention is not limited to the above embodiments, and any improvements and modifications made by those skilled in the art based on the disclosure of the present invention without departing from the scope of the invention should be within the protection scope of the present invention.

Claims

1. A knee joint pneumatic decompression orthotic brace with sensors, characterized in that, include: The orthotic body (1) forms an orthotic cavity that fits tightly against the knee joint; Fasteners are provided at both ends of the orthotic body (1) and are used to fix the orthotic body (1) to the knee joint; The airbag unit (3) includes several airbags (301) that are closely attached to both sides of the knee joint and behind the knee joint, and several air pumps (302) that are connected to the airbags (301) and control the inflation and deflation of the airbags (301). The first pressure sensor (4) is located on the sole of the foot to transmit the sole pressure signal and is connected to the airbag unit (3); The second pressure sensor (7), which is symmetrically arranged with the first pressure sensor (4) along the sole of the foot to transmit sole pressure signals and is connected to the airbag unit (3); and An angle sensor (6) is mounted on the orthotic body to measure the bending angle of the knee joint; When the ratio of the plantar pressure transmitted by the first pressure sensor (4) to that transmitted by the second pressure sensor (7) is 0.5-2, the air pump (302) does not work. When the ratio of the plantar pressure transmitted by the first pressure sensor (4) and the second pressure sensor (7) is greater than 2, the air pump (302) controls the airbag (301) located on the inner side of the knee joint to inflate until the ratio of the plantar pressure transmitted by the first pressure sensor (4) and the second pressure sensor (7) is 0.5-2, at which point the air pump (302) stops working. When the ratio of the plantar pressure transmitted by the first pressure sensor (4) and the second pressure sensor (7) is less than 0.5, the air pump (302) controls the airbag (301) located on the outside of the knee joint to inflate until the ratio of the plantar pressure transmitted by the first pressure sensor (4) and the second pressure sensor (7) is 0.5-2, at which point the air pump (302) stops working. When the knee flexion angle transmitted by the angle sensor (6) is 60°-150°, the air pump (302) controls the airbag (301) located on the back of the knee joint to inflate.

2. The knee joint pneumatic decompression orthotic brace with sensor according to claim 1, characterized in that, The airbag unit (3) also includes several limiting members (303) disposed on both sides of the airbag (301). The limiting members (303) are used to restrict the protrusion on the side close to the limiting member (303) when the airbag (301) is inflated.

3. A sensor-equipped pneumatic decompression orthotic brace for the knee joint according to claim 1, characterized in that, The airbag unit (3) also includes several processing centers (305) disposed on the orthopedic body (1), which are used to receive signals output by the first pressure sensor (4), the second pressure sensor (7) or the angle sensor (6) and output instructions to the air pump (302) to control the inflation or deflation of the air pump (302).

4. A sensor-equipped pneumatic decompression orthotic brace for the knee joint according to claim 3, characterized in that, The airbag unit (3) also includes a third pressure sensor (304) connected to the airbag (301), which is used to transmit the pressure inside the airbag (301) to the processing center (305).

5. A knee joint pneumatic decompression orthotic brace with a sensor according to claim 1, characterized in that, The fasteners include a first fastener (201) and a second fastener (202). The first fastener (201) is located on the orthotic body (1) near the patient's thigh, and the length of the first fastener (201) is adjustable; The second fastener (202) is located on the orthotic body (1) near the patient's lower leg, and the length of the second fastener (202) is adjustable.

6. A knee joint pneumatic decompression orthotic brace with a sensor according to claim 5, characterized in that, The first fastener (201) includes: First fastener body (203); A plurality of first fastener strips (204) are provided at one end of the first fastener body (203); A plurality of first buckle holes (205) are provided at the other end of the first fastener body (203); A plurality of first forward members (206) are disposed at one end of the first latch hole (205); and Several first retractable parts (207) are provided at the other end of the first latch hole (205); The first forward member (206) and the first backward member (207) are used to control the first latch bar (204) to move forward or backward in the first latch hole (205); The second fastener (202) includes: Second fastener body (212); Several second buckle strips (208) are provided at one end of the second fastener body (212); A plurality of second buckle holes (209) are provided at the other end of the second fastener body (212); Several second forward members (210) are provided at one end of the second latch hole (209); and Several second retractor pieces (211) are provided at the other end of the second latch hole (209); The second forward member (210) and the second backward member (211) are used to control the second latch bar (208) to move forward or backward in the second latch hole (209).

7. A knee joint pneumatic decompression orthotic brace with a sensor according to claim 1, characterized in that, Also includes: The insole (5) has the first pressure sensor (4) and the second pressure sensor (7) located inside it.

8. A knee joint pneumatic decompression orthotic brace with a sensor according to claim 1, characterized in that, The orthopedic body (1) includes: Ontology (101); Several connecting portions (102) are provided on the upper and lower sides of the main body portion (101); and Several mounting parts (103) are provided on the main body (101); The fastener is installed in the connecting part (102), and the mounting part (103) is used to fix the airbag (301).

9. A knee joint pneumatic decompression orthotic brace with a sensor according to claim 1, characterized in that, Three airbags (301) are provided, two of which are located on both sides of the knee joint and the other is located on the back of the knee joint.

10. A knee joint pneumatic decompression orthotic brace with a sensor according to claim 1, characterized in that, The fastener is detachably connected to the orthopedic body (1).

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