Patella protection and adjustment device

Abstract

The present invention belongs to the technical field of medical devices and discloses a patella protection and adjustment device, comprising an airbag layer, wherein the airbag layer comprises a patellar orthopedic airbag, an inflation bag and a patellar rubber ring, and the inflation bag is connected to the patellar orthopedic airbag through a one-way valve; the patellar rubber ring is arranged in the middle of the sheath component and surrounds the patellar area to reduce the force on the patella; wherein, the patellar orthopedic airbag is arranged on the outside of the patellar rubber ring to adjust the pressure of the patellar rubber ring, provide flexible protection, and adapt to different motion states and pressure requirements; this design can flexibly adjust the pressure in the patellar area through the interaction between the patellar orthopedic airbag and the patellar rubber ring, reduce the force on the patella, and alleviate the discomfort and pain caused by uneven patellar pressure. The inflation bag makes the adjustment process more convenient, provides effective protection and pressure regulation of the patella, provides a personalized protection plan, and the design improves the comfort and safety of the user.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to a patella protection and adjustment device. Background Art

[0002] In modern rehabilitation medicine and orthopedic treatment, knee braces are a common auxiliary device widely used in the fields of knee arthritis, ligament injuries, and postoperative rehabilitation. With the increasing aging of the population and the increase in sports injuries, the demand for knee braces continues to rise. Knee braces not only need to provide mechanical support, but also need to have multiple functions such as correction, protection, and assistance to meet the personalized treatment needs of different patients. Especially during rehabilitation training, how to effectively assist the flexion and extension of the knee joint, correct the force line of the lower limbs, and protect the patella have become key challenges in the design and development of knee braces.

[0003] The patellar protection device in the prior art is usually composed of a hinge and a bandage, and its main function is to provide basic mechanical support and fixation. However, this traditional design has multiple shortcomings. First, the simple combination of hinges and bandages cannot achieve intelligent functional adjustment, and it is difficult to make dynamic adjustments according to the actual situation of the patient. Secondly, there is a lack of effective protection for the patella, and the pressure adjustment process of the bandage is a single-point force, which leads to uneven force on the patella and may aggravate the pain of patients with patellar arthritis. In addition, this type of device also has limitations in providing flexion and extension movements, and cannot provide sufficient support for patients' rehabilitation training.

[0004] In view of this, it is necessary to improve the existing patella protection device to solve the technical problems of uneven pressure adjustment and single function. Summary of the Invention

[0005] The purpose of the present invention is to provide a patella protection and adjustment device to solve the above technical problems.

[0006] To achieve this object, the present invention adopts the following technical solutions:

[0007] A patella protection and adjustment device, comprising an airbag layer, wherein the airbag layer comprises:

[0008] The patellar orthotic airbag is located on the outside of the knee joint and is used to apply pressure to the patella;

[0009] an air bag connected to the patellar orthopedic air bag via a one-way valve, and used for adjusting the pressure in the patellar orthopedic air bag;

[0010] The patellar rubber ring is arranged in the middle of the sheath component and surrounds the patellar area to reduce the force on the patella; wherein the patellar orthopedic airbag is arranged on the outside of the patellar rubber ring to adjust the pressure of the patellar rubber ring.

[0011] Optionally, the airbag layer further includes:

[0012] A sheath assembly, used for sheathing on the user's legs; the sheath assembly is cone-shaped;

[0013] The patellar rubber ring is in the shape of an elliptical ring, and the patellar orthopedic airbag includes an airbag portion connected to the one-way valve, and a main airbag portion integrally arranged with the connecting airbag portion; wherein, the main airbag portion is arc-shaped, and the main airbag portion is arranged to fit the outer wall of the patellar rubber ring.

[0014] Optionally, the inflatable bag is a manual inflatable bag, and the manual inflatable bag includes:

[0015] A manual button pump, used for supplying air pressure to the patellar correction airbag by manual pressing;

[0016] a deflation button, used to release the gas in the patellar orthosis airbag by pressing;

[0017] An inflation tube connects the manual key pump, the deflation button and the patellar orthosis airbag and is used for transmitting gas.

[0018] Optionally, the inflatable bag is an automatic inflatable bag, and the automatic inflatable bag includes:

[0019] a micro electric pump, used for automatic inflation, and electrically increasing the air pressure in the patellar correction airbag;

[0020] An intelligent control chip, used to control the operation of the micro electric pump and adjust the inflation and deflation processes, wherein the intelligent control chip can automatically adjust the air pressure in the patellar correction airbag according to a preset pressure value;

[0021] A pressure sensor, configured to monitor the pressure in the patellar correction airbag in real time and transmit the monitoring data to the intelligent control chip;

[0022] A power module, including a battery assembly, for providing power to the micro electric pump and the intelligent control chip;

[0023] The inflation tube connects the micro electric pump and the patellar orthopedic airbag and is used for transmitting gas.

[0024] Optionally, the patella protection and adjustment device further includes a brace layer, and the brace layer includes:

[0025] a femoral support plate adapted to fit the femur;

[0026] a tibial support plate adapted to fit the tibia;

[0027] A knee flexion and extension rotary hinge, provided between the femoral support plate and the tibial support plate, for flexion and extension of the brace layer;

[0028] A valgus orthopedic hinge is provided between the femoral support plate and the tibial support plate, and is used to adjust the valgus angle of the knee joint;

[0029] multiple sets of bandages, connecting the femoral support plate and the tibial support plate, for fixing the brace layer;

[0030] A bandage buckle group is provided on the femoral support plate and the tibial support plate for fixing the bandage; wherein the bandage buckle group is provided in three groups, and the same group of bandage buckle groups is provided with two buckles, and the two buckles are provided on the femoral support plate and the tibial support plate respectively; wherein two groups of the bandage buckle groups are strip-shaped grooves, and the other group of the bandage buckle groups is an arc-shaped groove;

[0031] The airbag layer is arranged in contact with the brace layer to provide patella protection during knee varus and valgus correction and flexion and extension movements.

[0032] Optionally, the femoral support plate includes a first support plate and a second support plate, wherein an arc-shaped groove is provided at one end of the first support plate, and a protrusion is provided at one end of the second support plate close to the first support plate, and a sidewall of the protrusion is provided with an arc-shaped portion matching the arc-shaped groove;

[0033] A telescopic plate is provided on the inner wall of the first support plate, and the telescopic plate is protruded from the first support plate;

[0034] A connecting plate is provided on the inner wall of the second supporting plate, a sliding cavity is formed between the connecting plate and the first supporting plate, and the telescopic plate is slidably connected in the sliding cavity;

[0035] The telescopic plate is provided with a displacement groove along its length direction, and a plurality of limiting holes are provided at intervals along the displacement groove, and the diameter of the limiting holes is larger than the width of the displacement groove;

[0036] A locking piece is provided on the second supporting plate, and one end of the locking piece is inserted into the limiting hole to limit the height of the telescopic plate.

[0037] Optionally, a button position is provided on the outer wall of the second support plate, and an unlocking button is provided on the button position. The unlocking button is connected to the locking member through a connecting column, and a reset spring is sleeved on the connecting column, and one end of the reset spring abuts against the telescopic plate.

[0038] Optionally, the valgus and valgus orthopedic hinge includes a first connecting block connected to the femoral support plate, one end of the first connecting block is provided with a rotating shaft, and the rotating shaft is rotatably connected to a second connecting block;

[0039] An orthopedic adjustment block is provided in the middle of the second connecting block, and the orthopedic adjustment block is provided with a plurality of adjustment slots along its circumferential direction;

[0040] A hinge adjustment piece is provided on the first connecting block, and an unlocking slot is provided at one end of the hinge adjustment piece for rotating the hinge adjustment piece; wherein, the hinge adjustment piece is provided with a spiral protrusion along its length direction, and during the process of operating the unlocking slot to rotate the hinge adjustment piece, the spiral protrusion changes the position of being engaged in the adjustment slot.

[0041] Optionally, the knee extension and flexion rotation hinge includes a third connection block connected to the second connection block, and a fourth connection block connected to the tibial support plate;

[0042] A first tooth-shaped portion is provided on one side of the third connecting block, and a first limiting portion is provided adjacent to the first tooth-shaped portion;

[0043] A second tooth-shaped portion is provided on the fourth connecting block on the same side as the first tooth-shaped portion, and a second limiting portion is provided adjacent to the second tooth-shaped portion;

[0044] The second tooth-shaped portion is engaged with the first tooth-shaped portion, and when the second tooth-shaped portion rotates to a preset angle, the first limiting portion and the second limiting portion abut against each other to limit the rotation of the fourth connecting block.

[0045] Optionally, the knee extension and flexion rotary hinge further includes a protective end cover, the protective end cover is connected to a connecting end cover, and the connecting end cover is provided with a connecting piece for connecting to the airbag layer;

[0046] The protective end cover and the connecting end cover are spaced apart to form a rotation gap for allowing the third connecting block and the fourth connecting block to rotate.

[0047] Compared with the existing technology, the present invention has the following beneficial effects: the airbag layer of the patellar protection and adjustment device is connected to the patellar orthopedic airbag through an inflatable bag and a one-way valve. When working, the inflatable bag adjusts the input of gas to increase or decrease the pressure in the patellar orthopedic airbag. The patellar orthopedic airbag is located on the outside of the patellar rubber ring and affects the patellar rubber ring by adjusting its own pressure, thereby achieving protection and support for the patellar area; the patellar rubber ring surrounds the patellar area, reduces the force on the patella, and provides flexible protection under the action of the airbag pressure to adapt to different motion states and pressure requirements; this design can flexibly adjust the pressure in the patellar area through the interaction between the patellar orthopedic airbag and the patellar rubber ring, reduce the force on the patella, and alleviate the discomfort and pain caused by uneven patellar pressure. The inflatable bag makes the adjustment process more convenient, provides effective protection and pressure regulation for the patella, provides a personalized protection plan, and the design improves the comfort and safety of the user. BRIEF DESCRIPTION OF THE DRAWINGS

[0048] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0049] The structures, proportions, sizes, etc. depicted in the drawings of this specification are only used to match the contents disclosed in the specification so as to facilitate understanding and reading by persons familiar with this technology. They are not intended to limit the conditions under which the present invention can be implemented and therefore have no substantive technical significance. Any structural modifications, changes in proportional relationships, or adjustments in size should still fall within the scope of the technical contents disclosed in the present invention without affecting the effects and objectives that can be achieved by the present invention.

[0050] Figure 1 Schematic diagram of the overall structure of the patella protection and adjustment device of this embodiment;

[0051] Figure 2 Schematic diagram of the front view of the patella protection and adjustment device of this embodiment;

[0052] Figure 3 Schematic diagram of the structure of the femoral support plate of the patella protection and adjustment device of this embodiment;

[0053] Figure 4 Schematic diagram of the structure of the first support plate of the patella protection and adjustment device of this embodiment;

[0054] Figure 5 Schematic diagram of the key position structure of the patella protection and adjustment device of this embodiment;

[0055] Figure 6 Schematic diagram of the structure of the varus and valgus correction hinge of the patella protection and adjustment device of this embodiment;

[0056] Figure 7 This is a schematic structural diagram of the coordination between the orthopedic adjustment block and the hinge adjustment member of the patella protection and adjustment device of this embodiment;

[0057] Figure 8 Schematic diagram of the structure of the knee extension and flexion rotary hinge of the patella protection and adjustment device of this embodiment;

[0058] Figure 9 This is a schematic structural diagram of the airbag layer of the patella protection and adjustment device of this embodiment.

[0059] Illustrations: brace layer 100, femoral support plate 110, tibial support plate 120, knee extension and flexion rotation hinge 130, varus and valgus orthosis hinge 140, bandage buckle group 150, button position 160, first support plate 111, second support plate 112, arc groove 113, protrusion 114, arc portion 115, telescopic plate 116, connecting plate 117, displacement groove 1161, limiting hole 1162, locking member 118, first connecting block 141, second Second connecting block 142, orthopedic adjustment block 143, adjustment slot 1431, hinge adjustment member 144, unlocking slot 1441, spiral protrusion 1442, third connecting block 131, fourth connecting block 132, first tooth-shaped portion 1311, first limiting portion 1312, second tooth-shaped portion 1321, second limiting portion 1322, protective end cover 133, connecting end cover 134, connecting piece 135, unlocking button 161, connecting column 162, and return spring 163;

[0060] Airbag layer 200 , patellar correction airbag 210 , inflation bag 220 , one-way valve 230 , patellar rubber ring 240 . DETAILED DESCRIPTION

[0061] In order to make the purpose, features, and advantages of the present invention more obvious and easy to understand, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the embodiments described below are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the present invention.

[0062] In the description of the present invention, it should be understood that the terms "upper," "lower," "top," "bottom," "inner," "outer," etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings and are intended solely to facilitate the description of the present invention and simplify the description. They are not intended to indicate or imply that the devices or elements referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on the present invention. It should be noted that when a component is considered to be "connected" to another component, it may be directly connected to the other component or there may be a centrally located component.

[0063] The technical solution of the present invention will be further described below with reference to the accompanying drawings and through specific implementation methods.

[0064] Combine Figures 1 to 9 As shown, an embodiment of the present invention provides a patella protection and adjustment device, comprising a brace layer 100 and an airbag layer 200, wherein: the brace layer 100 comprises a femoral support plate 110, a tibial support plate 120, a knee extension and flexion rotation hinge 130, an internal and external varus orthopedic hinge 140 and multiple groups of bandages; the airbag layer 200 comprises a patella orthopedic airbag 210 and an inflatable bag 220;

[0065] The femoral support plate 110 is designed to conform to the femur and is a key component of the patellar protection and adjustment device. It is designed to conform to the femur and provide stable support. Its primary function is to distribute and absorb pressure from the femur, ensuring knee joint stability during movement. Working in conjunction with other components, the femoral support plate 110 effectively supports the knee joint, reducing pain and discomfort associated with joint instability.

[0066] The tibial bearing plate 120 is designed to fit the tibia; it is positioned opposite the femoral bearing plate 110 and is adapted to fit the tibia. Its primary function is to support and stabilize the tibia, ensuring stability during knee flexion and extension. The tibial bearing plate 120, connected to the femoral bearing plate 110, forms a complete support system, providing the necessary mechanical support for the knee joint and helping the patient maintain correct posture and force alignment during recovery.

[0067] The knee extension and flexion rotary hinge 130, located between the femoral support plate 110 and the tibial support plate 120, facilitates flexion and extension of the brace layer 100. This hinge design allows the knee joint to flex and extend within its natural range of motion, providing flexible support. The rotary hinge not only assists patients with daily activities but also provides essential support during rehabilitation training, reducing the burden on the knee joint and facilitating recovery.

[0068] The varus and valgus orthotic hinge 140 is arranged between the femoral support plate 110 and the tibial support plate 120, and is used to adjust the varus and valgus angles of the knee joint; through the preset angle adjustment, the hinge can correct the patient's lower limb force line and help restore normal knee joint function. The design of the varus and valgus orthotic hinge 140 is particularly suitable for patients with unilateral shoulder arthritis, and helps to alleviate the pain and discomfort caused by varus and valgus of the knee joint.

[0069] Multiple bandages connect the femoral support plate 110 and the tibial support plate 120 to secure the brace layer 100. These bandages can be adjusted to the patient's leg shape, providing a personalized fit and support. These bandages stabilize the brace layer 100 during exercise, preventing displacement and improving brace effectiveness and comfort.

[0070] The patellar orthotic airbag 210, located on the outside of the knee joint, applies pressure to the patella. The patellar orthotic airbag 210 is designed to reduce the burden on the patella through flexible pressure distribution, protecting it from excessive pressure. The patellar orthotic airbag 210 is particularly suitable for patients with patellar arthritis, helping to relieve pain and provide additional protection.

[0071] The inflatable bag 220 is connected to the patellar orthotic bag 210 via a one-way valve 230, which is used to adjust the pressure within the patellar orthotic bag 210. Patients or medical personnel can inflate or deflate the inflatable bag 220 via the one-way valve 230 as needed, thereby adjusting the pressure within the patellar bridge bag. This design allows the patellar bridge bag to provide personalized pressure adjustment, meeting the needs of different patients and improving comfort and treatment effectiveness.

[0072] The airbag layer 200 is positioned in close contact with the brace layer 100 to correct knee varus and varus and protect the patella during flexion and extension movements. The airbag layer 200, in close cooperation with the brace layer 100, evenly distributes pressure around the knee joint, providing comprehensive support and protection. The airbag layer 200 not only reduces stress on the patella but also provides assistance during flexion and extension movements, aiding patients in rehabilitation training and daily activities.

[0073] The working principle of the present invention is as follows: the present patella protection and adjustment device realizes the functions of knee varus correction, patella protection and flexion and extension assistance through the cooperation of the brace layer 100 and the airbag layer 200. Specifically, the femoral support plate 110 and the tibial support plate 120 of the brace layer 100 are connected by the knee flexion and extension rotation hinge 130, allowing the knee joint to provide stable support and assistance during flexion and extension movements; the varus and varus orthopedic hinge 140 is set between the femoral support plate 110 and the tibial support plate 120, which can adjust the varus and varus of the knee joint. angle, correcting the force line of the lower limbs; multiple groups of bandages ensure the stability and fit of the brace layer 100 during use; the airbag layer 200 includes a patellar correction airbag 210 and an inflation bag 220, and the pressure in the airbag is adjusted by a one-way valve 230 to apply appropriate pressure to the patella, thereby achieving patella protection; through the ingenious design of the brace layer 100 and the airbag layer 200, this patella protection and adjustment device can provide correction and protection while assisting patients to complete daily flexion and extension exercises, thus realizing a comprehensive solution to various clinical needs.

[0074] In this embodiment, the airbag layer 200 also includes a patellar rubber ring 240 and a sleeve assembly 250. The sleeve assembly 250 is used to be mounted on the user's leg; the sleeve assembly 250 is cone-shaped; the patellar rubber ring 240 is arranged in the middle of the sleeve assembly 250 and surrounds the patellar area to reduce the force on the patella; wherein, the patellar orthopedic airbag 210 is arranged on the outside of the patellar rubber ring 240 to adjust the pressure of the patellar rubber ring 240.

[0075] It should be noted that the patellar rubber ring 240, by surrounding the patellar area, provides effective protection for the patella, reduces stress on the patella, and alleviates pain in patients with patellar arthritis. The patellar orthotic airbag 210 can further optimize the protective effect of the patellar rubber ring 240 by adjusting the pressure, ensuring that the patella receives appropriate support and protection during different motion states, thereby improving patient comfort and treatment effectiveness.

[0076] The patellar protection and adjustment device's airbag layer 200 is connected to the patellar orthopedic airbag 210 via an inflatable bag 220 and a one-way valve 230. During operation, the inflatable bag 220 adjusts the gas input, increasing or decreasing the pressure within the patellar orthopedic airbag 210. The patellar orthopedic airbag 210, located outside the patellar adhesive ring 240, influences the patellar adhesive ring 240 by adjusting its own pressure, thereby protecting and supporting the patellar area. The patellar adhesive ring 240 surrounds the patellar area, reducing stress on the patella and, under the influence of the airbag pressure, provides flexible protection to adapt to different motion states and pressure requirements.

[0077] The design of this patella protection and adjustment device provides effective protection and pressure regulation for the patella through the action of the airbag layer 200. The patellar orthopedic airbag 210 interacts with the patellar rubber ring 240 to flexibly adjust the pressure in the patellar area, reduce the force on the patella, and alleviate the discomfort and pain caused by uneven patellar pressure. The presence of the airbag 220 makes the adjustment process more convenient, and the user can manually or electrically adjust the pressure as needed to provide a personalized protection plan. The overall design improves the comfort and safety of the user, and is particularly suitable for patients with patellar arthritis or athletes who need patellar protection, with significant results.

[0078] In this embodiment, it is further explained that the patellar rubber ring 240 is in the shape of an elliptical ring, and the patellar orthopedic airbag 210 includes an airbag portion 211 connected to the one-way valve 230, and a main airbag portion 212 integrally arranged with the connecting airbag portion 211; wherein, the main airbag portion 212 is arc-shaped, and the main airbag portion 212 is arranged to fit the outer wall of the patellar rubber ring 240.

[0079] As one of the optional solutions of the inflatable bag 220 of this embodiment, the inflatable bag 220 is a manual inflatable bag, which includes:

[0080] A manual button pump, used to supply air pressure to the patellar correction airbag 210 by manual pressing;

[0081] A deflation button, used to release the gas in the patellar orthosis airbag 210 by pressing;

[0082] The inflation tube is connected to the manual key pump, the deflation button and the patellar orthosis airbag 210 for transmitting gas.

[0083] It should be noted that the manual inflation system requires the user to press a manual button pump, which delivers air through the inflation tube to the patellar orthosis airbag 210. Due to the one-way valve 230, the air can only enter the airbag and cannot leak, thereby increasing the pressure within the airbag. To reduce the pressure, the user can release some air using the deflate button or valve to adjust the pressure in the patellar orthosis airbag.

[0084] As a second optional solution of the inflatable bag 220 of this embodiment, the inflatable bag 220 is an automatic inflatable bag, which includes:

[0085] A micro electric pump, used for automatic inflation, electrically increasing the air pressure in the patellar correction airbag 210;

[0086] An intelligent control chip, used to control the operation of the micro electric pump and regulate the inflation and deflation processes, wherein the intelligent control chip can automatically adjust the air pressure in the patellar correction airbag 210 according to a preset pressure value;

[0087] A pressure sensor is used to monitor the pressure in the patellar correction airbag 210 in real time and transmit the monitoring data to the intelligent control chip;

[0088] A power module, including a battery assembly, is used to provide power to the micro electric pump and the intelligent control chip;

[0089] The inflation tube connects the micro electric pump and the patellar orthopedic airbag 210 and is used for transmitting gas.

[0090] The electrically inflatable airbag uses a micro-electric pump controlled by an intelligent control chip to automatically deliver air to the patellar orthosis airbag 210 through an inflation tube. A pressure sensor monitors the pressure within the airbag in real time and feeds this data back to the intelligent control chip. Based on the preset pressure, the intelligent control chip adjusts the micro-electric pump to ensure the pressure within the airbag remains within the desired range. When pressure needs to be reduced, the intelligent control chip controls the solenoid valve to release air, adjusting the pressure in the patellar orthosis airbag.

[0091] In this embodiment, the brace layer 100 further includes a bandage buckle assembly 150, which is provided on the femoral support plate 110 and the tibial support plate 120 and is used to secure the bandage. The design of the bandage buckle assembly 150 enhances the stability and fixation of the brace layer 100. By providing the bandage buckle assembly 150 on the femoral support plate 110 and the tibial support plate 120, the bandage can be more securely fixed to the brace layer 100, preventing displacement or loosening during use, thereby improving patient comfort and the brace's effectiveness.

[0092] In this embodiment, three groups of bandage buckle groups 150 are provided, with each group of bandage buckle groups 150 having two buckles, one on each of the femoral support plate 110 and the other on each of the tibial support plate 120. Two of the groups of bandage buckle groups 150 have strip-shaped grooves, while the other group has an arc-shaped groove. This design provides multiple fixing methods and enhances the adaptability and flexibility of the brace layer 100.

[0093] It should be noted that the strip-shaped bandage buckle assembly 150 provides a linear fixation effect, suitable for a wide range of adjustments; while the arc-shaped groove provides a more precise fixation, suitable for areas that require fine adjustment. By using the different shapes of the bandage buckle assembly 150, the brace layer 100 can better fit the patient's leg, providing personalized support and protection.

[0094] In this embodiment, the femoral support plate 110 includes a first support plate 111 and a second support plate 112. An arc-shaped groove 113 is provided at one end of the first support plate 111, and a protrusion 114 is provided at one end of the second support plate 112 close to the first support plate 111. The side wall of the protrusion 114 is provided with an arc-shaped portion 115 matching the arc-shaped groove 113.

[0095] It should be noted that this design allows the first support plate 111 and the second support plate 112 to fit tightly together, forming a stable, integrated structure. The interlocking arcuate groove 113 and the arcuate portion 115 of the raised portion 114 not only enhance the stability of the femoral support plate 110 but also improve its load-bearing capacity. This structural design allows the femoral support plate 110 to better adapt to the shape of the patient's leg, providing more reliable support and protection, and further improving the overall performance of the knee brace.

[0096] Specifically, a telescopic plate 116 is provided on the inner wall of the first support plate 111, and the telescopic plate 116 protrudes from the first support plate 111; a connecting plate 117 is provided on the inner wall of the second support plate 112, and a sliding cavity is formed between the connecting plate 117 and the first support plate 111, and the telescopic plate 116 is slidably connected in the sliding cavity.

[0097] Among them, the telescopic plate 116 is provided with a displacement groove 1161 along its length direction, and a plurality of limiting holes 1162 are arranged at intervals along the displacement groove 1161, and the diameter of the limiting hole 1162 is larger than the width of the displacement groove 1161; a locking member 118 is provided on the second support plate 112, and one end of the locking member 118 is inserted into the limiting hole 1162 to limit the height of the telescopic plate 116.

[0098] During operation, the telescopic plate 116 slides freely within the sliding cavity, thereby adjusting the length of the femoral support plate 110 to accommodate different patient leg lengths. Through the cooperation of the telescopic plate 116 and the sliding cavity, the brace layer 100 can provide flexible length adjustment, ensuring that the brace fits the patient's leg tightly, providing stable support and a comfortable wearing experience.

[0099] It should be noted that, through this limiting mechanism, the height of the telescopic plate 116 can be precisely adjusted within the displacement slot 1161. The locking member 118 inserted into the limiting hole 1162 can effectively fix the position of the telescopic plate 116, preventing it from sliding or shifting during use. The design of the limiting hole 1162 makes the adjustment of the telescopic plate 116 more flexible and provides different gear settings.

[0100] It is further explained that a button position 160 is provided on the outer wall of the second support plate 112, and an unlocking button 161 is provided on the button position 160. The unlocking button 161 is connected to the locking member 118 through a connecting column 162. A return spring 163 is sleeved on the connecting column 162, and one end of the return spring 163 is in contact with the telescopic plate 116.

[0101] It should be noted that the user can release the locking member 118 by pressing the unlock button 161, thereby adjusting the position of the telescopic plate 116. The function of the return spring 163 is to ensure that the unlock button 161 automatically returns to its original position after being released, maintaining the stability of the locking member 118. Through this unlocking and returning mechanism, the user can conveniently adjust the length of the telescopic plate 116, improving the ease of use and adjustment flexibility of the knee brace.

[0102] In this embodiment, the varus-valgus orthopedic hinge 140 includes a first connecting block 141 connected to the femoral support plate 110. A rotating shaft is disposed at one end of the first connecting block 141, to which a second connecting block 142 is rotatably connected. An orthopedic adjustment block 143 is disposed in the middle of the second connecting block 142, and the orthopedic adjustment block 143 has a plurality of adjustment slots 1431 defined along its circumference. A hinge adjustment member 144 is disposed on the first connecting block 141, and an unlocking slot 1441 is disposed at one end of the hinge adjustment member 144 for rotating the hinge adjustment member 144. A spiral protrusion 1442 is disposed along its length. When the unlocking slot 1441 is operated to rotate the hinge adjustment member 144, the spiral protrusion 1442 changes its position within the adjustment slot 1431.

[0103] It should be noted that the first connecting block 141 is provided with a hinge adjustment member 144, one end of which is provided with an unlocking slot 1441 for rotating the hinge adjustment member 144. Furthermore, the hinge adjustment member 144 is provided with a spiral protrusion 1442 along its length. When the unlocking slot 1441 is operated to rotate the hinge adjustment member 144, the spiral protrusion 1442 changes its position within the adjustment slot 1431. With this design, the varus-valgus orthotic hinge 140 can precisely adjust the varus-valgus angle of the knee joint. The adjustment slot 1431 of the orthotic adjustment block 143 provides a variety of angle options. The cooperation between the spiral protrusion 1442 and the adjustment slot 1431 ensures stable and precise adjustment, meeting the correction needs of different patients.

[0104] Specifically, knee extension-flexion rotation hinge 130 includes a third connecting block 131 connected to second connecting block 142, and a fourth connecting block 132 connected to tibial support plate 120. A first toothed portion 1311 is provided on one side of third connecting block 131, and a first stopper 1312 is provided adjacent to first toothed portion 1311. Fourth connecting block 132 is provided on the same side of first toothed portion 1311 as first toothed portion 1321, and a second stopper 1322 is provided adjacent to second toothed portion 1321. Second toothed portion 1321 meshes with first toothed portion 1311, and when second toothed portion 1321 rotates to a predetermined angle, first stopper 1312 and second stopper 1322 abut against each other, thereby limiting rotation of fourth connecting block 132. The design of the toothed portion and the limiting portion ensures the stability and safety of the knee-flexion and extension rotary hinge 130 during flexion and extension movements. When rotated to a preset angle, the abutment of the limiting portions can effectively prevent excessive rotation and protect the knee joint from damage.

[0105] Furthermore, the knee flexion and extension hinge 130 also includes a protective end cap 133, which is connected to a connecting end cap 134. Connecting end cap 134 is provided with a connecting piece 135 for connecting to the airbag layer 200. A gap is provided between protective end cap 133 and connecting end cap 134 to create a rotational gap for the third connecting block 131 and the fourth connecting block 132 to rotate. This provides flexible support for movement while protecting the hinge from external damage.

[0106] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions described in the above embodiments can still be modified, or some of the technical features thereof can be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A patella protection and adjustment device, characterized in that: It comprises a brace layer (100) and an airbag layer (200), wherein the brace layer (100) comprises: A femoral support plate (110) adapted to fit the femur; A tibial support plate (120) adapted to fit the tibia; A knee flexion and extension rotation hinge (130), disposed between the femoral support plate (110) and the tibial support plate (120), for flexion and extension of the brace layer (100); a varus orthopedic hinge (140), disposed between the femoral support plate (110) and the tibial support plate (120), for adjusting the varus angle of the knee joint; Multiple groups of bandages connecting the femoral support plate (110) and the tibial support plate (120) for fixing the brace layer (100); a bandage buckle assembly (150), disposed on the femoral support plate (110) and the tibial support plate (120), and used for fixing the bandage; The airbag layer (200) is arranged in contact with the brace layer (100), and the airbag layer (200) is used to provide patella protection during knee joint varus and valgus correction and flexion and extension movements; The airbag layer (200) comprises: A patellar correction airbag (210) is arranged on the outside of the knee joint and is used to apply pressure to the patella; An air bag (220) is connected to the patellar orthopedic air bag (210) via a one-way valve (230) and is used to adjust the pressure in the patellar orthopedic air bag (210); A sheath assembly (250) for sheathing around a user's leg; The patellar rubber ring (240) is arranged in the middle of the sheath assembly (250) and surrounds the patellar area to reduce the force on the patella; wherein the patellar orthopedic airbag (210) is arranged on the outside of the patellar rubber ring (240) to adjust the pressure of the patellar rubber ring (240).

2. The patella protection and adjustment device according to claim 1, characterized in that: The sheath component (250) is cone-shaped; The patellar rubber ring (240) is in the shape of an elliptical ring, and the patellar orthopedic airbag (210) includes an airbag portion (211) connected to the one-way valve (230), and a main airbag portion (212) integrally arranged with the connecting airbag portion (211); wherein the main airbag portion (212) is in the shape of an arc, and the main airbag portion (212) is arranged to fit the outer wall of the patellar rubber ring (240).

3. The patella protection and adjustment device according to claim 1, characterized in that: The inflatable bag (220) is a manual inflatable bag, and the manual inflatable bag comprises: A manual button pump, used for supplying air pressure to the patellar orthopedic airbag (210) by manual pressing; a deflation button, used for releasing the gas in the patellar orthopedic airbag (210) by pressing; An inflation tube is connected to the manual key pump, the deflation button and the patellar orthopedic airbag (210) and is used for transmitting gas.

4. The patella protection and adjustment device according to claim 1, characterized in that: The inflatable bag (220) is an automatic inflatable bag, and the automatic inflatable bag comprises: A micro electric pump, used for automatic inflation, to increase the air pressure in the patellar orthopedic airbag (210) electrically; An intelligent control chip, used to control the operation of the micro electric pump and adjust the inflation and deflation processes, wherein the intelligent control chip can automatically adjust the air pressure in the patellar orthopedic airbag (210) according to a preset pressure value; A pressure sensor, used for monitoring the pressure in the patellar correction airbag (210) in real time and transmitting the monitoring data to the intelligent control chip; A power module, including a battery assembly, for providing power to the micro electric pump and the intelligent control chip; An inflation tube connects the micro electric pump and the patellar orthopedic airbag (210) and is used for transmitting gas.

5. The patella protection and adjustment device according to claim 1, characterized in that: in, The bandage buckle group (150) is provided in three groups, and the bandage buckle group (150) in the same group is provided with two buckles, and the two buckles are respectively provided on the femoral support plate (110) and the tibial support plate (120); two groups of the bandage buckle group (150) are strip-shaped grooves, and the other group of the bandage buckle group (150) is an arc-shaped groove.

6. The patella protection and adjustment device according to claim 1, characterized in that: The femoral support plate (110) comprises a first support plate (111) and a second support plate (112), wherein an arc-shaped groove (113) is provided at one end of the first support plate (111), and a protrusion (114) is provided at one end of the second support plate (112) close to the first support plate (111), and a side wall of the protrusion (114) is provided with an arc-shaped portion (115) matching the arc-shaped groove (113); A telescopic plate (116) is provided on the inner wall of the first support plate (111), and the telescopic plate (116) is provided so as to protrude from the first support plate (111); A connecting plate (117) is provided on the inner wall of the second support plate (112), a sliding cavity is formed between the connecting plate (117) and the first support plate (111), and the telescopic plate (116) is slidably connected in the sliding cavity; The telescopic plate (116) is provided with a displacement groove (1161) along its length direction, and a plurality of limiting holes (1162) are provided at intervals along the displacement groove (1161), and the diameter of the limiting holes (1162) is greater than the width of the displacement groove (1161); A locking member (118) is provided on the second support plate (112), and one end of the locking member (118) is inserted into the limiting hole (1162) to limit the height of the telescopic plate (116); A button position (160) is provided on the outer wall of the second support plate (112), and an unlocking button (161) is provided on the button position (160). The unlocking button (161) is connected to the locking member (118) via a connecting column (162). A return spring (163) is sleeved on the connecting column (162), and one end of the return spring (163) is in contact with the telescopic plate (116).

7. The patella protection and adjustment device according to claim 1, characterized in that: The valgus and valgus orthopedic hinge (140) comprises a first connecting block (141) connected to the femoral support plate (110), one end of the first connecting block (141) is provided with a rotating shaft, and a second connecting block (142) is rotatably connected to the rotating shaft; An orthopedic adjustment block (143) is provided in the middle of the second connecting block (142), and the orthopedic adjustment block (143) is provided with a plurality of adjustment slots (1431) along its circumferential direction; A hinge adjusting member (144) is provided on the first connecting block (141), and an unlocking slot (1441) for rotating the hinge adjusting member (144) is provided at one end of the hinge adjusting member (144); wherein the hinge adjusting member (144) is provided with a spiral protrusion (1442) along its length direction, and during the process of operating the unlocking slot (1441) to rotate the hinge adjusting member (144), the spiral protrusion (1442) changes the position of being engaged in the adjusting slot (1431).

8. The patella protection and adjustment device according to claim 7, characterized in that: The knee extension and flexion rotation hinge (130) includes a third connection block (131) connected to the second connection block (142), and a fourth connection block (132) connected to the tibial support plate (120); A first tooth-shaped portion (1311) is provided on one side of the third connecting block (131), and a first limiting portion (1312) is provided adjacent to the first tooth-shaped portion (1311); A second tooth-shaped portion (1321) is provided on the fourth connecting block (132) on the same side as the first tooth-shaped portion (1311), and a second limiting portion (1322) is provided adjacent to the second tooth-shaped portion (1321); The second tooth-shaped portion (1321) is meshed with the first tooth-shaped portion (1311), and when the second tooth-shaped portion (1321) rotates to a preset angle, the first limiting portion (1312) and the second limiting portion (1322) abut against each other to limit the rotation of the fourth connecting block (132).

9. The patella protection and adjustment device according to claim 8, characterized in that: The knee extension and flexion rotary hinge (130) further includes a protective end cover (133), the protective end cover (133) is connected to a connecting end cover (134), and the connecting end cover (134) is provided with a connecting piece (135) for connecting to the airbag layer (200); The protective end cover (133) and the connecting end cover (134) are spaced apart to form a rotation gap for allowing the third connecting block (131) and the fourth connecting block (132) to rotate.

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