Knee joint rehabilitation exercise brace

Abstract

The invention relates to the technical field of knee joint rehabilitation exercise braces, in particular to a knee joint rehabilitation exercise brace which comprises a first protective plate and a second protective plate which are used for forming a brace frame. The end parts of the first protective plate and the second protective plate are rotationally connected and are respectively connected with a bandage assembly; a locking assembly used for locking the rotating angle of the second protection plate is installed on the first protection plate, and an ice storage assembly is detachably connected between the first protection plate and the second protection plate. By means of the design of the detachable ice storage assembly, cold compress can be conducted on an incision, pain and swelling can be relieved by shrinking blood vessels, meanwhile, the ice storage assembly can be detached during exercise, and knee bending exercise cannot be interfered.

Description

Technical Field

[0001] The present invention relates to the technical field of knee joint rehabilitation training braces, and in particular to a knee joint rehabilitation training brace. Background Art

[0002] With the advancement of medical technology, knee surgery has become an effective means of treating a variety of knee diseases. However, the success of the operation depends not only on the operation itself, but also on the recovery process of the patient after the operation. In order to promote the recovery of patients after surgery, knee exercise braces have been widely used in clinical practice.

[0003] Existing knee exercise braces usually include a thigh fixation sleeve, a calf fixation sleeve, and a support rod connecting the two. These braces are designed to provide support for the legs to maintain the normal force line of the joint and ensure the safety of exercise movements. After knee surgery, patients usually need to apply ice packs to the knee incision to reduce inflammation, relieve pain and eliminate swelling. However, existing knee exercise braces do not integrate this function, resulting in patients having to hold ice packs in their hands for cold compresses at the same time, which is not only inconvenient but also limits the patient's freedom of movement. In addition, the lack of a mechanism to fix the ice pack may cause the ice pack to shift, affecting the effect of the cold compress.

[0004] In view of this, in order to further improve the applicability of existing exercise braces, we propose a knee joint rehabilitation exercise brace. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art, such as the lack of an integrated fixing structure for an ice bag and the inconvenience of manually supporting the ice bag, and to propose a knee joint rehabilitation exercise brace.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions: Design a knee joint rehabilitation exercise brace, including: A first guard plate and a second guard plate for forming a brace frame; The first guard plate and the second guard plate are rotatably connected at their ends, and are respectively connected with a strap assembly; A locking assembly for locking the rotation angle of the second guard plate is installed on the first guard plate, and an ice storage assembly is detachably connected between the first guard plate and the second guard plate; A control unit is installed on the side of the first guard plate, and a detection unit electrically connected to the control unit is connected between the first guard plate and the second guard plate.

[0007] Further, the ice storage assembly includes an ice storage bag; The top of the ice storage bag has a sealable opening; Both sides of the ice storage bag are provided with connection structures connected to the first guard plate and the second guard plate.

[0008] Furthermore, the connection structure comprises elastic bands connected to both sides of the ice storage bag, and buckles are fixedly connected to the ends of the elastic bands; The sides of the first guard plate and the second guard plate are both fixed with claw parts, and the buckle ring is clamped with the claw parts.

[0009] Furthermore, the first guard plate and the second guard plate are arranged in a U-shaped structure; An opening portion is formed at the end of the first guard plate, and a ball head portion is formed at the end of the second guard plate. The ball head portion is rotatably connected in the opening portion.

[0010] Further, the locking assembly includes a guide groove formed on the first guard plate and extending into the opening; A locking rod is slidably connected in the guide groove, and a plurality of clamping grooves are arranged on the outer circumference of the ball head portion, and the ends of the locking rod are clamped in the clamping grooves.

[0011] Furthermore, the first guard plate is formed with elastic arms on both sides of the guide groove, and the two elastic arms are formed with latching protrusions on the opposite surfaces, and the latching protrusions are latched on the outer side of the locking rod to limit the locking rod.

[0012] Further, the detection unit includes an angle sensor fixed on the end surface of the first guard plate, and the angle sensor is electrically connected to the control unit; The shaft end of the angle sensor extends into the opening and is circumferentially locked with the ball head.

[0013] Furthermore, the detection unit also includes: The Hall switch fixed on the inner side of the opening has an annular groove on the end face of the ball head, a magnetic ring is placed on the inner side of the annular groove, a locking opening is opened on one side of the magnetic ring, and a protrusion that is engaged with the locking opening is fixedly installed on the inner side of the opening.

[0014] Furthermore, the detection surface of the Hall switch is vertically misaligned with the top of the magnetic ring; The inner wall of the annular groove has a first half thread, the outer side of the magnetic ring is formed with a second half thread, and the first half thread is threadably connected to the second half thread.

[0015] Furthermore, an angle mark is provided on the outer side of the end portion of the first guard plate, and a pointer protrusion opposite to the angle mark is provided on the end face of the second guard plate.

[0016] The knee joint rehabilitation brace proposed by the present invention has the following beneficial effects: The detachable ice storage assembly of the present invention can be used for cold compressing the incision, which can reduce pain and swelling by constricting blood vessels. At the same time, the ice storage assembly can be disassembled during exercise, which will not interfere with knee flexion exercise. In addition, the present invention also uses a control unit and a detection unit to collect data such as the bending angle, number of times and time during the knee flexion exercise. The control unit stores the data in a server. The doctor can then review all the patient's exercise data by scanning the code or entering the patient's hospital number and other information, which facilitates constructive evaluation and guidance. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A perspective view of the present invention; Figure 2 for Figure 1 A schematic diagram of the enlarged structure of area A; Figure 3 It is a schematic diagram of the structure of the ice storage assembly of the present invention; Figure 4 A diagram showing a connection state of the first guard plate and the second guard plate of the present invention; Figure 5 An exploded view of the connection between the first guard plate and the second guard plate of the present invention; Figure 6 for Figure 5 Schematic diagram of the enlarged structure of area B; Figure 7 for Figure 6 Schematic diagram of the enlarged structure of region C; Figure 8 It is a schematic diagram of the ball head structure of the present invention; Fig. 9 It is a schematic diagram of the first guard plate structure of the present invention; Fig.10 for Fig. 9 Schematic diagram of the enlarged structure of the D region; Fig.11 The first guard plate and the second guard plate of the present invention are cross-sectional views. Figure 1 ; Fig.12 The first guard plate and the second guard plate of the present invention are cross-sectional views. Figure 2 .

[0018] In the figure: 1. first guard plate; 11. opening; 12. angle mark; 2. second guard plate; 21. ball head; 22. ring groove; 23. first half thread; 3. locking assembly; 31. guide groove; 32. locking rod; 33. slot; 34. elastic arm; 35. clamping protrusion; 4. strap assembly; 5. ice storage assembly; 51. ice storage bag; 52. elastic belt; 53. buckle; 54. claw; 6. control unit; 7. detection unit; 71. angle sensor; 72. Hall switch; 73. magnetic ring; 74. locking mouth; 75. protrusion; 76. second half thread; 77. spring. DETAILED DESCRIPTION

[0019] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0020] Reference Figure 1-12 In one embodiment of the present invention, a knee joint rehabilitation brace is disclosed, which is used to provide support and protection for the patient's legs while adding a cold compress function. By hollowing out a detachable ice bag above the surgical incision, the patient can remove the ice bag when performing functional exercises, and after the exercise, add ice water or ice cubes and then put it back on the brace for cold compress; Reference Figure 4 , Figure 5 Specifically, the training brace includes a first guard plate 1 and a second guard plate 2 for forming a brace frame. The first guard plate 1 and the second guard plate 2 are set to a U-shaped structure. Of course, in order to increase the comfort of wearing, in this embodiment, an inner lining, such as a sponge pad, can also be fixedly installed on the inner side of the first guard plate 1 and the second guard plate 2. This method is a conventional method of technicians in the relevant field and will not be described in detail here. Reference Figure 1 , Figure 3 The first guard plate 1 and the second guard plate 2 are rotatably connected at their ends, and are respectively connected with a strap assembly 4, wherein the strap assembly 4 is configured as a Velcro, and the Velcro is connected to the above-mentioned lining. A buckle is installed on the other side of the lining, and the Velcro can be bonded to itself after passing through the buckle, thereby fixing the entire brace on the leg; The first guard plate 1 is provided with a locking assembly 3 for locking the rotation angle of the second guard plate 2, and an ice storage assembly 5 is detachably connected between the first guard plate 1 and the second guard plate 2; A control unit 6 is installed on the side of the first guard plate 1 , and a detection unit 7 electrically connected to the control unit 6 is connected between the first guard plate 1 and the second guard plate 2 .

[0021] Reference Figure 2 , Figure 3 , in some embodiments, the ice storage assembly 5 of the present invention includes an ice storage bag 51; The top of the ice storage bag 51 has a sealable opening, and the opening in this embodiment is sealed by a zipper, and the ice bag is placed in the ice storage bag 51 during use to store the ice bag; Of course, in other embodiments, the opening can also be sealed by a ziplock seal. With the good sealing performance of the ziplock seal, an ice bag or ice water can be directly placed inside the ice storage bag 51. Furthermore, the ice storage bag 51 in this embodiment is set as a plastic bag. In addition, both sides of the ice storage bag 51 in the present invention are provided with connection structures connected to the first guard plate 1 and the second guard plate 2 .

[0022] Reference Figure 2 On the basis of the above embodiment, the connection structure in the present invention comprises an elastic band 52 connected to both sides of the ice storage bag 51, and the ends of the elastic band 52 are fixedly connected with buckles 53. Specifically, the ends of the elastic band 52 in the present invention are bent outward and sewed to form an installation space, and a part of the buckle 53 is placed in the installation space; The sides of the first guard plate 1 and the second guard plate 2 are both fixed with claw portions 54 , and the buckle ring 53 is engaged with the claw portions 54 .

[0023] Specifically, the claw portion 54 described in the present invention is roughly L-shaped, with a bent design in the middle. The purpose of the bending setting is to clamp and stop the buckle 53 to prevent it from falling off freely, thereby ensuring the connection stability of the ice bag 51. When there is no need to exercise, the ice bag 51 can be connected by adding an ice bag inside the ice bag 51, and then the buckles 53 on the elastic bands 52 on both sides of the ice bag 51 are buckled on the claw portion 54. The ice bag 51 can be connected. The incision can be cooled by the ice bag 51, which can reduce pain and swelling by constricting blood vessels.

[0024] Reference Figure 5 Furthermore, in the present invention, an opening portion 11 is formed at the end of the first guard plate 1, and a ball head portion 21 is formed at the end of the second guard plate 2, and the ball head portion 21 is rotatably connected to the opening portion 11.

[0025] It should be noted that the bottom of the first guard plate 1 described in this embodiment is also provided with a spherical structure, and the ball head structure cooperates with the above-mentioned ball head 21 to improve the aesthetics of the connection between the first guard plate 1 and the second guard plate 2.

[0026] On the basis of the above-mentioned embodiments, the present invention uses the design of the locking component 3 to lock the angle between the first guard plate 1 and the second guard plate 2. When exercise is required, the first guard plate 1 and the second guard plate 2 can maintain relative rotation by opening the locking component 3 to ensure the freedom of subsequent knee flexion exercise. Similarly, when a supporting effect is required, the first guard plate 1 and the second guard plate 2 are locked at an angle by the locking component 3, so that the leg joint can be maintained at a fixed angle.

[0027] Reference Figure 6 , Fig.11 Preferably, the locking assembly 3 includes a guide groove 31 formed on the first guard plate 1 and extending into the opening 11, wherein the guide groove is L-shaped and is located on the end surface of the first guard plate 1 and is a straight opening; A locking rod 32 is slidably connected in the guide groove 31, and a plurality of slots 33 are provided on the outer circumferential portion of the ball head 21. The ends of the locking rod 32 are engaged in the slots 33. Preferably, the locking rod 32 in this embodiment is also configured as an L-shaped structure, and a sliding seat is fixedly installed on the top of the bent portion. The sliding seat is slidably connected to the end face of the first guard plate 1, and the locking rod 32 is driven to engage or separate with the slots 33 by pushing the sliding seat to move.

[0028] Reference Fig. 9 , Fig.10 Of course, considering that when the lock rod 32 is slid, the position of the lock rod 32 is fixed to avoid the lock rod 32 from moving after unlocking and the stability of incorrect locking, in this embodiment, the first guard plate 1 is formed with elastic arms 34 on both sides of the guide groove 31, and the opposite surfaces of the two elastic arms 34 are formed with latching protrusions 35. As a preferred embodiment, the latching protrusions 35 described in this embodiment are arranged as a step structure, and the latching protrusions 35 are latched on the outer side of the lock rod 32 to limit the lock rod 32.

[0029] That is, in the initial state, the end of the locking rod 32 is engaged in the engaging groove 33, and at this time, the front end of the engaging protrusion 35 is stopped at the rear end of the locking rod 32. When unlocking, the locking rod 32 is slid backward, and the locking rod 32 first contacts the engaging protrusion 35 to cause the elastic arm 34 to deform and retract. When the locking rod 32 is separated from the engaging groove 33, the locking rod 32 is separated from the engaging protrusion 35. Since the elastic arm 34 is reset, the engaging protrusion 35 is engaged with the front side of the locking rod 32 to stop and limit the forward displacement of the locking rod 32 to avoid accidental locking.

[0030] Reference Figure 6It should be noted that, in order to intuitively detect the knee flexion angle in this embodiment, an angle mark 12 is further provided on the outer side of the end of the first guard plate 1 in the present invention, and a pointer protrusion opposite to the angle mark 12 is provided on the end face of the second guard plate 2. The angle mark 12 can also be color-separated according to the recommended exercise angles. For example, it is recommended to flex the knee joint to 90 degrees 1-2 weeks after surgery, and red is used for painting; one month after surgery to 110 degrees, and yellow is used for painting; 2-3 months after surgery to the allowed range of motion of the prosthesis, green is used for painting, etc., to make a clear distinction.

[0031] Reference Figure 6 In some embodiments, the detection unit 7 in the present invention includes an angle sensor 71 fixed on the end surface of the first guard plate 1, and the angle sensor 71 is electrically connected to the control unit 6; The shaft end of the angle sensor 71 extends into the opening 11 and is circumferentially locked with the ball head 21 .

[0032] Reference Figure 6 , Fig.11 In the present invention, a key is fixedly installed on the shaft end of the angle sensor 71, and the middle part of the ball head 21 has a through hole for the shaft end to pass through, and a key slot is also opened in the through hole. The key and the key slot are penetrated to achieve circumferential locking of the two, and at the same time, the rotation support and connection of the second guard plate 2 are realized.

[0033] Specifically, when doing knee flexion exercise, when the first guard plate 1 and the second guard plate 2 rotate relative to each other, since the shell of the angle sensor 71 is connected to the first guard plate 1 and its shaft end is connected to the second guard plate 2, relative rotation occurs between the shell and the shaft rod of the angle sensor 71, thereby detecting the rotation angle between the first guard plate 1 and the second guard plate 2, and sending the detection data to the control unit 6 for subsequent viewing.

[0034] Preferably, the control unit 6 described in the present invention may include a housing, a battery and a single-chip microcomputer, and the single-chip microcomputer is electrically connected to the detection unit 7. In addition, the single-chip microcomputer can also be connected to a cloud server via a wireless module to realize the sending and receiving of data. Medical staff can view the exercise data through a mobile phone or other host terminal to conduct constructive evaluation and guidance.

[0035] Reference Fig.11 , Fig.12 On the basis of the above embodiment, the detection unit 7 in the present invention further includes: The Hall switch 72 fixed on the inner side of the opening portion 11 has an annular groove 22 on the end face of the ball head 21, a magnetic ring 73 is placed on the inner side of the annular groove 22, a locking hole 74 is opened on one side of the magnetic ring 73, and a protrusion 75 that is fixedly installed on the inner side of the opening portion 11 and is engaged with the locking hole 74.

[0036] Reference Figure 7 As a preference, in this embodiment, the detection surface of the Hall switch 72 and the top of the magnetic ring 73 are vertically offset; The inner wall of the annular groove 22 has a first half thread 23, and the outer side of the magnetic ring 73 is formed with a second half thread 76. The first half thread 23 is threadedly connected with the second half thread 76. Since the knee flexion angle of the leg is limited when the knee is flexed, the present invention only needs to use a half-thread driving method without using a full circle of threads.

[0037] Specifically, in the present invention, the Hall switch 72 is used to detect the number of knee flexion and the knee flexion time during the knee flexion exercise; In a kneeling process, when the first guard plate 1 and the second guard plate 2 rotate relative to each other during kneeling, the angle sensor 71 detects the rotation angle between the two. At the same time, since the magnetic ring 73 cannot rotate under the cooperation of the locking hole 74 and the protrusion 75, when the second guard plate 2 rotates relative to each other, the first half thread 23 and the second half thread 76 mesh with each other to control the magnetic ring 73 to move linearly, that is, move upward. When the magnetic ring 73 moves upward, it is opposite to the Hall switch 72. At this time, the Hall switch 72 receives a signal, and the control unit 6 can perform timing. Similarly, when the leg is straightened, the magnetic ring 73 is driven in the reverse direction and starts to move downward, the Hall switch 72 loses the signal, and a knee flexion is completed. The control unit 6 counts once and records the knee flexion time. This reciprocating process can count the number of knee flexion training times.

[0038] It should be noted that, in the present invention, a spring 77 may be sleeved on the shaft end of the angle sensor 71, and the spring 77 is used to push the magnetic ring 73 to ensure the stability of the magnetic ring 73 moving downward.

[0039] In summary, the detachable ice storage assembly 5 of the present invention can be used for cold compressing the incision, which can reduce pain and swelling by constricting blood vessels. At the same time, the ice storage assembly 5 can be disassembled during exercise, which will not interfere with knee flexion exercise. In addition, the present invention also uses a control unit 6 and a detection unit 7 to collect data such as the bending angle, number of times and time during the knee flexion exercise. The control unit 6 stores the data in the server. The doctor can then review all the patient's exercise data by scanning the code or entering the patient's hospital number and other information, which is convenient for constructive evaluation and guidance.

[0040] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A knee joint rehabilitation brace, characterized in that: include: A first guard plate (1) and a second guard plate (2) for forming a support frame; The ends of the first guard plate (1) and the second guard plate (2) are rotatably connected and are respectively connected to a strap assembly (4); A locking assembly (3) for locking the rotation angle of the second guard plate (2) is installed on the first guard plate (1), and an ice storage assembly (5) is detachably connected between the first guard plate (1) and the second guard plate (2); A control unit (6) is installed on the side of the first guard plate (1), and a detection unit (7) electrically connected to the control unit (6) is connected between the first guard plate (1) and the second guard plate (2).

2. A knee joint rehabilitation brace according to claim 1, characterized in that: The ice storage assembly (5) comprises an ice storage bag (51); The top of the ice storage bag (51) has a sealable opening; Both sides of the ice storage bag (51) are provided with connection structures connected to the first guard plate (1) and the second guard plate (2).

3. A knee joint rehabilitation brace according to claim 2, characterized in that: The connection structure comprises an elastic band (52) connected to two sides of the ice storage bag (51), and buckles (53) are fixedly connected to the ends of the elastic band (52); The first guard plate (1) and the second guard plate (2) are both fixed with a claw portion (54) on their sides, and the buckle (53) is clamped with the claw portion (54).

4. A knee joint rehabilitation brace according to claim 1, characterized in that: The first guard plate (1) and the second guard plate (2) are arranged as a U-shaped structure; An opening portion (11) is formed at the end of the first guard plate (1), and a ball head portion (21) is formed at the end of the second guard plate (2), wherein the ball head portion (21) is rotatably connected in the opening portion (11).

5. A knee joint rehabilitation brace according to claim 4, characterized in that: The locking assembly (3) comprises a guide groove (31) formed on the first guard plate (1) and extending into the opening (11); A locking rod (32) is slidably connected in the guide groove (31), and a plurality of clamping grooves (33) are formed on the outer circumference of the ball head (21), and the ends of the locking rod (32) are clamped in the clamping grooves (33).

6. A knee joint rehabilitation brace according to claim 5, characterized in that: The first guard plate (1) is formed with elastic arms (34) on both sides of the guide groove (31), and the two elastic arms (34) are formed with latching protrusions (35) on the opposite surfaces thereof, and the latching protrusions (35) are latched on the outer side of the locking rod (32) to limit the position of the locking rod (32).

7. A knee joint rehabilitation brace according to claim 4, characterized in that: The detection unit (7) comprises an angle sensor (71) fixed on the end surface of the first guard plate (1), and the angle sensor (71) is electrically connected to the control unit (6); The shaft end of the angle sensor (71) extends into the opening portion (11) and is circumferentially locked with the ball head portion (21).

8. A knee joint rehabilitation brace according to claim 7, characterized in that: The detection unit (7) further comprises: A Hall switch (72) fixed on the inner side of the opening (11) has an annular groove (22) on the end face of the ball head (21), a magnetic ring (73) is placed inside the annular groove (22), a locking opening (74) is provided on one side of the magnetic ring (73), and a protrusion (75) that is engaged with the locking opening (74) is fixedly mounted on the inner side of the opening (11).

9. A knee joint rehabilitation brace according to claim 8, characterized in that: The detection surface of the Hall switch (72) and the top of the magnetic ring (73) are vertically misaligned; The inner wall of the annular groove (22) has a first half thread (23), the outer side of the magnetic ring (73) is formed with a second half thread (76), and the first half thread (23) and the second half thread (76) are threadedly connected.

10. A knee joint rehabilitation brace according to any one of claims 1 to 9, characterized in that: An angle mark (12) is also provided on the outer side of the end of the first guard plate (1), and a pointer protrusion opposite to the angle mark (12) is provided on the end surface of the second guard plate (2).

Images