Joint limiting device for orthopedic nursing

Abstract

The invention provides an orthopedic nursing joint limiting device, and relates to the technical field of medical instruments, the orthopedic nursing joint limiting device comprises a follow-up mechanism, and the follow-up mechanism is used for being connected with limbs above and below a joint; the limiting mechanism is arranged on the follow-up mechanism and used for limiting the movement range of the follow-up mechanism. The pre-supporting mechanism is arranged on the follow-up mechanism and used for conducting pre-stress supporting on the joint. The damping mechanism is arranged on the follow-up mechanism and used for applying damping to follow-up of the follow-up mechanism. The follow-up mechanism is connected with the limbs above and below the joint to follow up, the movement range of the follow-up mechanism is limited through the limiting mechanism so that the movement range of the limbs above or below the joint can be limited, pre-supporting stress is conducted through the pre-supporting mechanism so that the joint can be prevented from being directly stressed, and the reliability of the joint is improved. And damping is applied to the movement of the follow-up mechanism through the damping mechanism, so that the injured joint is pre-supported.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, and in particular to an orthopedic nursing joint limiting device. Background Art

[0002] Joints are parts that connect bones and move with the help of muscles, ligaments, and cartilage. Joints play a very important role in the human body, including supporting the body, protecting bones, and cushioning impacts. However, in daily production and life, some accidents are inevitable, causing a certain degree of damage to the human body. The joints of the limbs are an indispensable and important part of human activities. Because of frequent activities, they are also the most vulnerable parts of the human body. Therefore, during orthopedic treatment, patients often suffer from limb joint injuries. In the case of joint injuries, joint limit devices need to be used during the treatment process to maintain the correct position of the joints to achieve recovery and healing of the injured position.

[0003] Existing joint limit devices limit the joint movement angle to avoid secondary injury caused by excessive joint movement angle; however, when the limbs above the joint or the limbs below the joint move within the limited range of movement angle, the injured joint is not pre-supported and is still in a state of direct force, which makes it very easy to cause secondary injury to the injured joint when the limbs above the joint or the limbs below the joint move.

[0004] Therefore, how to achieve pre-support for the injured joint is a problem that needs to be solved urgently in the technical field. Summary of the invention

[0005] The purpose of the present invention is to provide an orthopedic care joint limiter to improve the above problems. In order to achieve the above purpose, the technical solution adopted by the present invention is as follows: The present application provides an orthopedic care joint limiting device, comprising: A follower mechanism, the follower mechanism is used to connect with the limbs above the joint and below the joint, so that when the limbs above or below the joint move, the follower mechanism follows; A limiting mechanism, the limiting mechanism is arranged on the following mechanism, and the limiting mechanism is used to limit the range of motion of the following mechanism, so that when the limbs above or below the joint move, the range of motion is limited by the limiting mechanism; A pre-support mechanism, the pre-support mechanism is arranged on the follower mechanism, and the pre-support mechanism is used to pre-stress the joint, so that when the limb above or below the joint moves, the force on the joint is relieved by the pre-support mechanism; A damping mechanism is arranged on the follower mechanism, and is used to apply damping to the follow-up of the follower mechanism, so that when the limbs above or below the joint move, the speed of the movement is limited by the damping mechanism.

[0006] Preferably, the follower mechanism comprises: Two connecting rods I, the two connecting rods I are used to be arranged on both sides of the limb below the joint; Two connecting rods II, the connecting rod II is hinged to the connecting rod I, and the two connecting rods II are used to be arranged on both sides of the limb above the joint; Two connecting components I, the two connecting components I are respectively arranged on the two connecting rods I and the two connecting rods II, and the connecting component I is used to connect with the limbs above or below the joint, so that when the limbs above or below the joint move, the connecting rod I or the connecting rod II follows.

[0007] Preferably, the connection assembly I comprises: Positioning block I, the positioning block I is fixedly connected to the connecting rod I or the connecting rod II located on one side; Two arc-shaped plates I, the two arc-shaped plates I are respectively hinged on both sides of the positioning block I, the inner wall of the arc-shaped plate I is fixedly connected with a silicone pad I, and the two arc-shaped plates I are also respectively fixedly connected with a lace, and the middle and tail of the lace are connected by a magic buckle; A positioning block II, wherein the positioning block II is fixedly connected to the connecting rod I or the connecting rod II located on the other side; Two arc plates II, the two arc plates II are respectively hinged on both sides of the positioning block II, the inner wall of the arc plate II is fixedly connected with a silicone pad II, the two arc plates II are also respectively connected with buckles, and the laces are inserted in the buckles.

[0008] Preferably, the limiting mechanism comprises: An arc-shaped guide cylinder, the tail end of which is fixedly connected to the connecting rod I, and an arc-shaped limiting opening is provided on the side wall of the arc-shaped guide cylinder; An arc-shaped limit strip, the tail end of which is fixedly connected to the connecting rod II, and the arc-shaped limit strip is inserted into the arc-shaped guide cylinder; A limiting column, wherein the limiting column is connected to the side wall of the arc-shaped limiting strip, and the limiting column is inserted into the arc-shaped limiting opening.

[0009] Preferably, a plurality of threaded holes are symmetrically provided on the side wall of the arc-shaped limit strip, a threaded rod is integrally provided at the bottom end of the limit column, the threaded rod is threadedly connected in the threaded hole, a slip ring is also rotatably connected to the peripheral wall of the limit column, and the slip ring abuts against the peripheral wall of the arc-shaped limit opening.

[0010] Preferably, the pre-support mechanism comprises: A support block I, wherein the support block I is fixedly connected to the connecting rod I, and a plurality of guide holes I are formed on the support block I; A support block II, wherein the support block II is fixedly connected to the connecting rod II, and a plurality of guide holes II are formed on the support block II; A plurality of elastic sheets, one end of each of the elastic sheets is connected to the guide hole I, and the other end of each of the elastic sheets is connected to the guide hole.

[0011] Preferably, waist-shaped holes are respectively opened at both ends of the multiple elastic sheets, and the lengths of the waist-shaped holes of the multiple elastic sheets are extended step by step. A limiting bolt I is threadedly connected to the support block I, and the limiting bolt I is passed through the waist-shaped hole at one end of the multiple elastic sheets. A limiting bolt II is threadedly connected to the support block II, and the limiting bolt II is passed through the waist-shaped hole at the other end of the multiple elastic sheets.

[0012] Preferably, the damping mechanism comprises: An arc-shaped barrel body, the bottom end of which is fixedly connected to the connecting rod II, and a non-Newtonian fluid is arranged in the arc-shaped barrel body; An arc-shaped guide rod, the bottom end of which is fixedly connected to the connecting rod I, the top end of which is fixedly connected to a shear plate, the peripheral wall of which is close to the inner wall of the arc-shaped barrel body, and a plurality of overflow holes are provided on the shear plate; A sealing member is fixedly connected in the arc-shaped barrel body, and the sealing member is sealingly connected to the arc-shaped guide rod.

[0013] Preferably, the sealing member comprises a limiting cylinder, the outer wall of the limiting cylinder is fixedly connected to the inner wall of the arc-shaped barrel body, the inner wall of the limiting cylinder is connected with a plurality of annular sealing sheets, the annular sealing sheets are sealingly connected to the arc-shaped guide rod, a plurality of conical cylinder sheets are also arranged on the inner wall of the limiting cylinder, the plurality of conical cylinder sheets and the plurality of annular sealing sheets are staggered, the conical cylinder sheets are close to the peripheral wall of the arc-shaped guide rod, and the conical cylinder sheets are used to reduce the pressure of the non-Newtonian fluid when it flows out.

[0014] Preferably, the two connecting rods I are respectively provided with a guide groove I, an extension plate I is slidably connected in the guide groove I, a connecting seat I is integrally provided at the end of the extension plate I, the two connecting seats I are connected with a connecting assembly II, and a limit screw I is also threadedly connected to the connecting rod I, and the end of the limit screw I abuts against the extension plate I; The two connecting rods II are respectively provided with guide grooves II, an extension plate II is slidably connected in the guide grooves II, a connecting seat II is integrally provided at the end of the extension plate II, the two connecting seats II are connected with a connecting assembly III, and a limit screw II is also threadedly connected to the connecting rod II, and the end of the limit screw II abuts against the extension plate II; The connection components II and III have the same structure as the connection component I.

[0015] The beneficial effects of the present invention are: The present invention follows the limbs above and below the joint after being connected with the follower mechanism, limits the range of motion of the follower mechanism through a limiting mechanism to restrict the range of motion of the limbs above or below the joint, pre-supports the force through a pre-support mechanism to avoid direct force on the joint, and damps the movement of the follower mechanism through a damping mechanism to avoid secondary damage to the injured joint caused by rapid movement, thereby achieving pre-support of the injured joint.

[0016] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or be understood by implementing the embodiments of the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description, claims, and drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for use in the embodiments are briefly introduced below. It should be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without creative work.

[0018] Figure 1 This is a schematic diagram of the structure of this application; Figure 2 This is a schematic diagram of the structure of the connection component I of the present application; Figure 3 This is a schematic diagram of the limit mechanism structure of this application; Figure 4 This is a schematic diagram of the arc-shaped limit strip structure of the present application; Figure 5 This is a schematic diagram of the pre-support mechanism structure of this application; Figure 6 This is a schematic diagram of the structure of multiple elastic sheets of the present application; Figure 7 This is a schematic diagram of the shear plate structure of this application; Figure 8 This is a cross-sectional view of the seal of this application.

[0019] Markings in the figure: follow-up mechanism 1, connecting rod Ⅰ11, connecting rod Ⅱ12, connecting assembly Ⅰ13, positioning block Ⅰ131, arc plate Ⅰ132, silicone pad Ⅰ133, lace 134, positioning block Ⅱ135, arc plate Ⅱ136, silicone pad Ⅱ137, buckle 138, guide groove Ⅰ14, extension plate Ⅰ15, connecting seat Ⅰ16, limiting screw Ⅰ17, extension plate Ⅱ18, connecting seat Ⅱ19, limiting screw Ⅱ110, limiting mechanism 2, arc guide cylinder 21, arc Limiting mouth 22, arc-shaped limiting strip 23, limiting column 24, threaded hole 25, slip ring 26, pre-support mechanism 3, support block I 31, guide hole I 32, support block II 33, elastic sheet 34, waist-shaped hole 35, limiting bolt I 36, limiting bolt II 37, damping mechanism 4, arc-shaped barrel body 41, arc-shaped guide rod 42, shear plate 43, overflow hole 44, seal 45, limiting cylinder 451, annular sealing sheet 452, conical cylinder sheet 453, connecting component II 5, connecting component III 6. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, 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 described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention. Based on the embodiments in 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.

[0021] It should be noted that similar reference numerals and letters represent similar items in the following drawings, so once an item is defined in one drawing, it does not need to be further defined and explained in the subsequent drawings. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0022] like Figure 1 As shown, this embodiment provides an orthopedic care joint limiting device, including: A follower mechanism 1, the follower mechanism 1 is used to connect with the limbs above the joint and below the joint, so that when the limbs above or below the joint move, the follower mechanism 1 follows; A limiting mechanism 2, wherein the limiting mechanism 2 is arranged on the following mechanism 1, and the limiting mechanism 2 is used to limit the range of motion of the following mechanism 1, so that when the limbs above or below the joint move, the range of motion is limited by the limiting mechanism 2; A pre-support mechanism 3, wherein the pre-support mechanism 3 is arranged on the follower mechanism 1, and the pre-support mechanism 3 is used to pre-stress the joint, so that when the limb above or below the joint moves, the force on the joint is relieved by the pre-support mechanism 3; The damping mechanism 4 is arranged on the follow-up mechanism 1, and is used to apply damping to the follow-up of the follow-up mechanism 1, so that when the limbs above or below the joint move, the speed of the movement is limited by the damping mechanism 4.

[0023] It can be understood that when caring for patients with joint injuries, the follower mechanism 1 is connected to the limbs above and below the joints of the patient. After the limbs above and below the joints move to a specified posture, the range of motion of the follower mechanism 1 is limited by the limiting mechanism 2 to limit the range of motion of the limbs above or below the joints; the pre-support mechanism 3 performs pre-stress support on the follower mechanism 1, and when the limbs above or below the joints move, the pre-support mechanism 3 performs pre-stress support to avoid direct force on the joints and prevent secondary damage to the injured joints; the damping mechanism 4 damps the movement of the follower mechanism 1, and the joints When the limbs above or below the joint move, the speed of movement is limited by the damping mechanism 4 to avoid rapid movement causing secondary damage to the injured joint; in this technical solution, the follow-up mechanism 1 is connected to the limbs above and below the joint and then follows the joint, and the movement range of the follow-up mechanism 1 is limited by the limiting mechanism 2 to impose restrictions on the movement range of the limbs above or below the joint, and the pre-support mechanism 3 is used to pre-support the force to avoid direct force on the joint, and the damping mechanism 4 is used to damp the movement of the follow-up mechanism 1 to avoid rapid movement causing secondary damage to the injured joint, thereby achieving pre-support of the injured joint.

[0024] like Figure 1 As shown, the follower mechanism 1 includes: Two connecting rods Ⅰ11, the two connecting rods Ⅰ11 are used to be arranged on both sides of the limb below the joint; Two connecting rods II 12, the connecting rod II 12 is hinged to the connecting rod I 11, and the two connecting rods II 12 are used to be arranged on both sides of the limb above the joint; Two connecting components I13, the two connecting components I13 are respectively arranged on the two connecting rods I11 and the two connecting rods II12, and the connecting components I13 are used to connect with the limbs above or below the joint, so that when the limbs above or below the joint move, the connecting rod I11 or the connecting rod II12 follows.

[0025] It can be understood that when caring for patients with joint injuries, the two connecting rods I11 are respectively set on both sides of the limbs below the joints, and the two connecting rods II12 are set on both sides of the limbs above the joints. The hinges of the connecting rods I11 and II12 correspond to the joint settings, and then the connecting component I13 connected by the two connecting rods I11 is connected to the limbs below the joints, and the connecting component I13 connected by the two connecting rods II12 is connected to the limbs above the joints. Through the connecting component I13, the two connecting rods I11 and the two connecting rods II12 are respectively stably connected to the limbs below the joints and the limbs above the joints, so that when the limbs above or below the joints move, the two connecting rods I11 and the two connecting rods II12 move with them.

[0026] like Figure 2 As shown, the connection component I13 includes: A positioning block I131, wherein the positioning block I131 is fixedly connected to the connecting rod I11 or the connecting rod II12 located on one side; Two arc-shaped plates Ⅰ132, the two arc-shaped plates Ⅰ132 are respectively hinged on both sides of the positioning block Ⅰ131, the inner wall of the arc-shaped plates Ⅰ132 is fixedly connected with a silicone pad Ⅰ133, and the two arc-shaped plates Ⅰ132 are also respectively fixedly connected with a lace 134, and the middle and tail of the lace 134 are connected by a magic buckle; A positioning block II 135, wherein the positioning block II 135 is fixedly connected to the connecting rod I 11 or the connecting rod II 12 located at the other side; Two arc plates II136 are respectively hinged on both sides of the positioning block II135 , and the inner wall of the arc plate II136 is fixedly connected with a silicone pad II137 . The two arc plates II136 are also respectively connected with buckles 138 , and the laces 134 are inserted into the buckles 138 .

[0027] It can be understood that when the two connecting rods Ⅰ11 or the two connecting rods Ⅱ12 are connected to the patient's limbs, the two arc-shaped plates Ⅰ132 on the connecting rod Ⅰ11 or the connecting rod Ⅱ12 on one side are deflected and unfolded, and then they are pressed against and fitted with one side of the patient's limb through the silicone pad Ⅰ133. After the arc-shaped plates Ⅱ136 on the connecting rod Ⅰ11 or the connecting rod Ⅱ12 on the other side are deflected and unfolded, they are pressed against and fitted with the other side of the patient's limb through the silicone pad Ⅱ137. Then, the laces 134 connected to the two arc-shaped plates Ⅰ132 are respectively inserted into the corresponding buckles 138. After the laces 134 are tightened, the middle and tail of the laces 134 are connected by magic buckles. After the laces 134 are tightened, the arc-shaped plates Ⅰ132 exert a force on the silicone pad Ⅰ133. The thrust makes the silicone pad Ⅰ133 closely abut against the patient's limbs, and the arc plate Ⅱ136 applies a thrust to the silicone pad Ⅱ137, so that the silicone pad Ⅱ137 closely abuts against the patient's limbs. The silicone pad Ⅰ133 and the silicone pad Ⅱ137 closely abut against the limbs limit the movable position of the connecting rod Ⅰ11 or the connecting rod Ⅱ12 on the patient's limbs, so that the connecting rod Ⅰ11 or the connecting rod Ⅱ12 establishes a close connection relationship with the patient's limbs, thereby ensuring the follow-up performance of the connecting rod Ⅰ11 or the connecting rod Ⅱ12; and the limiting method of locally increasing the friction force of the silicone pad Ⅰ133 and the silicone pad Ⅱ137 avoids binding the patient's limbs, thereby avoiding affecting the patient's local blood circulation and improving the comfort of the patient during the treatment process.

[0028] like Figure 3 As shown, the limiting mechanism 2 includes: An arc-shaped guide cylinder 21, the tail end of which is fixedly connected to the connecting rod Ⅰ11, and an arc-shaped limiting opening 22 is provided on the side wall of the arc-shaped guide cylinder 21; An arc-shaped limit strip 23, the tail end of which is fixedly connected to the connecting rod II 12, and the arc-shaped limit strip 23 is inserted into the arc-shaped guide cylinder 21; The limiting post 24 is connected to the side wall of the arc-shaped limiting strip 23 , and the limiting post 24 is inserted into the arc-shaped limiting opening 22 .

[0029] It can be understood that after the limbs above and below the joint move to the specified posture, the limit column 24 is inserted into the arc-shaped limit opening 22, and when the connecting rod I11 moves with the limb below the joint, the arc-shaped guide cylinder 21 is synchronously deflected, and when the connecting rod II12 moves with the limb above the joint, the arc-shaped limit strip 23 is synchronously deflected. During the synchronous deflection of the arc-shaped guide cylinder 21 and / or the arc-shaped limit strip 23, the limit column 24 moves synchronously in the arc-shaped limit opening 22, and the limit column 24 is abutted against the two ends of the arc-shaped limit opening 22 to limit the range of motion of the connecting rod I11 and the connecting rod II12, so as to limit the joint motion angle and avoid secondary injury caused by excessive joint motion angle.

[0030] like Figure 4 As shown, a plurality of threaded holes 25 are symmetrically provided on the side wall of the arc-shaped limit strip 23, a threaded rod is integrally provided at the bottom end of the limit column 24, and the threaded rod is threadedly connected in the threaded hole 25, and a slip ring 26 is rotatably connected to the peripheral wall of the limit column 24, and the slip ring 26 abuts against the peripheral wall of the arc-shaped limit opening 22.

[0031] It can be understood that after the limbs above and below the joint move to the specified posture, the arc limit strip 23 is inserted into the arc guide cylinder 21, and then the threaded rod is threadedly connected to the threaded hole 25 at the corresponding position. Through the multiple threaded holes 25 opened on the side wall of the arc limit strip 23, the needs of limiting in different angle ranges are met, thereby enhancing practical performance; after the threaded rod is threadedly connected to the threaded hole 25 at the corresponding position, the limit column 24 is located in the arc limit opening 22. When the limit column 24 is displaced in the arc limit opening 22, the slip ring 26 is in contact with the surrounding wall of the arc limit opening 22, and the slip ring 26 rotates along with the displacement of the limit column 24, so as to avoid the connection between the limit column 24 and the arc limit strip 23 being disconnected.

[0032] like Figure 5 As shown, the pre-support mechanism 3 includes: A support block I31, wherein the support block I31 is fixedly connected to the connecting rod I11, and a plurality of guide holes I32 are formed on the support block I31; A support block II 33, wherein the support block II 33 is fixedly connected to the connecting rod II 12, and a plurality of guide holes II are formed on the support block II 33; A plurality of elastic sheets 34 are provided, one end of each of the elastic sheets 34 is connected to the guide hole I 32 , and the other end of each of the elastic sheets 34 is connected to the guide hole II.

[0033] It is understandable that when caring for patients with joint injuries, the number of elastic sheets 34 is determined according to the intensity level of the care. The more elastic sheets 34 there are, the more difficult it is to move the limbs. One end of the multiple elastic sheets 34 is connected to the guide hole Ⅰ32, and the other end of the multiple elastic sheets 34 is connected to the guide hole Ⅱ. After the limbs above and below the joints move to a specified posture, the multiple elastic sheets 34 are synchronously bent between the support block Ⅰ31 and the support block Ⅱ33. After the range of motion of the connecting rod Ⅰ11 and the connecting rod Ⅱ12 is limited by the limiting mechanism 2, The bending angles of the multiple elastic sheets 34 between the support block I31 and the support block II33 are fixed, and the multiple bent elastic sheets 34 apply prestressed support to the connecting rods I11 and II12 through the support blocks I31 and II33 respectively. When the limbs above or below the joints move, the force of the limbs above or below the joints acts on the multiple elastic sheets 34 through the cooperation of the connecting rods I11 and II12. The multiple elastic sheets 34 are pre-supported to avoid direct force on the joints and prevent secondary damage to the injured joints.

[0034] like Figure 5-Figure 6 As shown, waist-shaped holes 35 are respectively opened at both ends of the multiple elastic sheets 34, and the lengths of the waist-shaped holes 35 of the multiple elastic sheets 34 are extended step by step. A limiting bolt I36 is threadedly connected to the support block I31, and the limiting bolt I36 is passed through the waist-shaped holes 35 at one end of the multiple elastic sheets 34. A limiting bolt II37 is threadedly connected to the support block II33, and the limiting bolt II37 is passed through the waist-shaped holes 35 at the other end of the multiple elastic sheets 34.

[0035] It is understandable that when multiple elastic sheets 34 are bent synchronously, if the multiple elastic sheets 34 are of equal length, the elastic sheet 34 close to the inner side of the bending surface will cause a larger bend, and the elastic sheet 34 close to the outer side of the bending surface will exert a pulling force on the support block Ⅰ31 and the support block Ⅱ33, and the structure is unstable and cannot achieve the required pre-support effect; therefore, waist-shaped holes 35 are respectively opened at both ends of the multiple elastic sheets 34, and the lengths of the waist-shaped holes 35 of the multiple elastic sheets 34 are extended step by step, and a limiting bolt Ⅰ36 is connected to the support block Ⅰ31, and the limiting bolt Ⅰ36 is passed through one end of the multiple elastic sheets 34. The support block Ⅱ33 is connected to a limiting bolt Ⅱ37, and the limiting bolt Ⅱ37 is passed through the waist-shaped hole 35 at the other end of the multiple elastic sheets 34; when the multiple elastic sheets 34 are bent, the two ends of the multiple elastic sheets 34 slide in the guide hole Ⅰ32 and the guide hole Ⅱ respectively, and the multiple elastic sheets 34 adaptively adjust the layer length required for bending. The limiting bolts Ⅰ36 and the limiting bolts Ⅱ37 are limited at the two ends of the multiple elastic sheets 34 to prevent the multiple elastic sheets 34 from detaching from the support block Ⅰ31 or and the support block Ⅱ33, so as to ensure the stability of the structure and meet the pre-support effect.

[0036] like Figure 5 and Figure 7 As shown, the damping mechanism 4 includes: An arc-shaped barrel body 41, the bottom end of which is fixedly connected to the connecting rod II12, and a non-Newtonian fluid is arranged in the arc-shaped barrel body 41; An arc-shaped guide rod 42, the bottom end of which is fixedly connected to the connecting rod Ⅰ11, the top end of which is fixedly connected to a shear plate 43, the peripheral wall of which is close to the inner wall of the arc-shaped barrel body 41, and a plurality of overflow holes 44 are formed on the shear plate 43; A sealing member 45 is fixedly connected in the arc-shaped barrel body 41 , and the sealing member 45 is sealingly connected to the arc-shaped guide rod 42 .

[0037] It can be understood that after the multiple elastic sheets 34 are bent within the limited range of motion, the multiple elastic sheets 34 will apply a reverse thrust to the connecting rods Ⅰ11 and Ⅱ12, so that the connecting rods Ⅰ11 and Ⅱ12 will drive the limbs above or below the joints to be quickly reset. The process of rapid reset is very likely to cause secondary damage to the injured joints. Therefore, the arc-shaped barrel body 41 is connected to the connecting rod Ⅱ12, and the arc-shaped guide rod 42 is connected to the connecting rod Ⅰ11. When the limbs above or below the joints are bent, the arc-shaped guide rod 42 slides in the arc-shaped barrel body 41, bringing The dynamic shear plate 43 moves in the non-Newtonian fluid, and the non-Newtonian fluid flows to both sides of the shear plate 43 through multiple overflow holes 44. The seal 45 prevents the non-Newtonian fluid from leaking out of the arc-shaped barrel body 41. When the multiple elastic sheets 34 reset and apply reverse thrust to the connecting rods Ⅰ11 and Ⅱ12, the non-Newtonian fluid prevents the shear plate 43 from sliding quickly in the arc-shaped barrel body 41, thereby slowing down the reset process of the connecting rods Ⅰ11 and Ⅱ12, and reducing the speed of resetting the limbs above or below the joints, thereby avoiding secondary damage to the injured joints.

[0038] like Figure 8 As shown, the sealing member 45 includes a limiting cylinder 451, the outer wall of which is fixedly connected to the inner wall of the arc-shaped barrel body 41, the inner wall of which is connected to a plurality of annular sealing sheets 452, the annular sealing sheets 452 are sealingly connected to the arc-shaped guide rod 42, a plurality of conical cylinder sheets 453 are also arranged on the inner wall of the limiting cylinder 451, the plurality of conical cylinder sheets 453 and the plurality of annular sealing sheets 452 are staggered, the conical cylinder sheets 453 are close to the peripheral wall of the arc-shaped guide rod 42, and the conical cylinder sheets 453 are used to reduce the pressure of the non-Newtonian fluid when it flows out.

[0039] It can be understood that, during the sliding of the arc-shaped guide rod 42 in the arc-shaped barrel body 41, the multiple annular sealing sheets 452 are tightly fitted with the arc-shaped guide rod 42, preventing the non-Newtonian fluid from flowing out of the arc-shaped barrel body 41 in multiple stages, and the multiple conical cylinder sheets 453 reduce the pressure generated when the shear plate 43 pushes the non-Newtonian fluid, preventing the non-Newtonian fluid from stretching the annular sealing sheet 452 and causing the non-Newtonian fluid to flow out. The multiple conical cylinder sheets 453 and the multiple annular sealing sheets 452 are staggered to form a multi-stage sealing protection between the limit cylinder 451 and the arc-shaped guide rod 42 to ensure the sealing performance.

[0040] like Figure 1-Figure 2 As shown, the two connecting rods Ⅰ11 are respectively provided with guide grooves Ⅰ14, and an extension plate Ⅰ15 is slidably connected in the guide grooves Ⅰ14. The end of the extension plate Ⅰ15 is integrally provided with a connecting seat Ⅰ16, and the two connecting seats Ⅰ16 are connected with a connecting assembly Ⅱ5. The connecting rod Ⅰ11 is also threadedly connected with a limit screw Ⅰ17, and the end of the limit screw Ⅰ17 abuts against the extension plate Ⅰ15; The two connecting rods Ⅱ12 are respectively provided with guide grooves Ⅱ, and an extension plate Ⅱ18 is slidably connected in the guide grooves Ⅱ. The end of the extension plate Ⅱ18 is integrally provided with a connection seat Ⅱ19, and the two connection seats Ⅱ19 are connected with a connection assembly Ⅲ6. The connecting rod Ⅱ12 is also threadedly connected with a limit screw Ⅱ110, and the end of the limit screw Ⅱ110 abuts against the extension plate Ⅱ18; The connection components II5 and III6 have the same structure as the connection component I13.

[0041] It can be understood that after the two connecting rods Ⅰ11 and the two connecting rods Ⅱ12 are connected to the limbs below the joint and the limbs above the joint respectively through the connecting component Ⅰ13, the connection strength of the connecting component Ⅰ13 is limited and will cause local stress concentration; therefore, an extension plate Ⅰ15 is slidably connected to the connecting rod Ⅰ11, and a connecting seat Ⅰ16 is integrally provided at the end of the extension plate Ⅰ15. The two connecting seats Ⅰ16 are connected to the connecting component Ⅱ5. After the extension plate Ⅰ15 slides into place in the guide groove Ⅰ14, the limit screw Ⅰ17 is tightened to limit the movable position of the extension plate Ⅰ15 in the guide groove Ⅰ14; the extension plate Ⅱ18 is slidably connected to the connecting rod Ⅱ12 to extend A connecting seat Ⅱ19 is integrally provided at the end of plate Ⅱ18, and the two connecting seats Ⅱ19 are connected to the connecting components Ⅲ6. After the extension plate Ⅱ18 slides into place in the guide groove Ⅱ, the limit screw Ⅱ110 is tightened to limit the movable position of the extension plate Ⅱ18 in the guide groove Ⅱ; the two connecting rods Ⅰ11 are connected to the limbs below the joint at multiple points by cooperating with the connecting component Ⅱ5 and the connecting component Ⅰ13; the two connecting rods Ⅱ12 are connected to the limbs above the joint at multiple points by cooperating with the connecting component Ⅲ6 and the connecting component Ⅰ13; thereby strengthening the connection strength between the connecting rod Ⅰ11 and the limbs below the joint and the connecting rod Ⅱ12 and the limbs above the joint, thereby avoiding the occurrence of local stress concentration.

[0042] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

[0043] The above is only a specific embodiment of the present invention, but the protection scope of the present invention is not limited thereto. Any person skilled in the art can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. An orthopedic joint limiting device, characterized in that: include: A follower mechanism, the follower mechanism is used to connect with the limbs above the joint and below the joint, so that when the limbs above or below the joint move, the follower mechanism follows; A limiting mechanism, the limiting mechanism is arranged on the following mechanism, and the limiting mechanism is used to limit the range of motion of the following mechanism, so that when the limbs above or below the joint move, the range of motion is limited by the limiting mechanism; A pre-support mechanism, the pre-support mechanism is arranged on the follower mechanism, and the pre-support mechanism is used to pre-stress the joint, so that when the limb above or below the joint moves, the force on the joint is relieved by the pre-support mechanism; A damping mechanism is arranged on the follower mechanism, and is used to apply damping to the follow-up of the follower mechanism, so that when the limbs above or below the joint move, the speed of the movement is limited by the damping mechanism.

2. The orthopedic care joint limiting device according to claim 1, characterized in that: The following mechanism comprises: Two connecting rods I, the two connecting rods I are used to be arranged on both sides of the limb below the joint; Two connecting rods II, the connecting rod II is hinged to the connecting rod I, and the two connecting rods II are used to be arranged on both sides of the limb above the joint; Two connecting components I, the two connecting components I are respectively arranged on the two connecting rods I and the two connecting rods II, and the connecting component I is used to connect with the limbs above or below the joint, so that when the limbs above or below the joint move, the connecting rod I or the connecting rod II follows.

3. The orthopedic care joint limiting device according to claim 2, characterized in that: The connection component I comprises: Positioning block I, the positioning block I is fixedly connected to the connecting rod I or the connecting rod II located on one side; Two arc-shaped plates I, the two arc-shaped plates I are respectively hinged on both sides of the positioning block I, the inner wall of the arc-shaped plate I is fixedly connected with a silicone pad I, and the two arc-shaped plates I are also respectively fixedly connected with a lace, and the middle and tail of the lace are connected by a magic buckle; A positioning block II, wherein the positioning block II is fixedly connected to the connecting rod I or the connecting rod II located on the other side; Two arc plates II, the two arc plates II are respectively hinged on both sides of the positioning block II, the inner wall of the arc plate II is fixedly connected with a silicone pad II, the two arc plates II are also respectively connected with buckles, and the laces are inserted in the buckles.

4. The orthopedic care joint limiting device according to claim 2, characterized in that: The limiting mechanism comprises: An arc-shaped guide cylinder, the tail end of which is fixedly connected to the connecting rod I, and an arc-shaped limiting opening is provided on the side wall of the arc-shaped guide cylinder; An arc-shaped limit strip, the tail end of which is fixedly connected to the connecting rod II, and the arc-shaped limit strip is inserted into the arc-shaped guide cylinder; A limiting column, wherein the limiting column is connected to the side wall of the arc-shaped limiting strip, and the limiting column is inserted into the arc-shaped limiting opening.

5. The orthopedic care joint limiting device according to claim 4, characterized in that: A plurality of threaded holes are symmetrically provided on the side wall of the arc-shaped limit strip, a threaded rod is integrally provided at the bottom end of the limit column, the threaded rod is threadedly connected in the threaded hole, a slip ring is rotatably connected to the peripheral wall of the limit column, and the slip ring abuts against the peripheral wall of the arc-shaped limit opening.

6. The orthopedic care joint limiting device according to claim 2, characterized in that: The pre-support mechanism comprises: A support block I, wherein the support block I is fixedly connected to the connecting rod I, and a plurality of guide holes I are formed on the support block I; A support block II, wherein the support block II is fixedly connected to the connecting rod II, and a plurality of guide holes II are formed on the support block II; A plurality of elastic sheets, one end of each of the elastic sheets is connected to the guide hole I, and the other end of each of the elastic sheets is connected to the guide hole.

7. The orthopedic care joint limiting device according to claim 6, characterized in that: The two ends of the multiple elastic sheets are respectively provided with waist-shaped holes, and the lengths of the waist-shaped holes of the multiple elastic sheets are extended step by step. The support block I is threadedly connected with a limiting bolt I, and the limiting bolt I is passed through the waist-shaped holes at one end of the multiple elastic sheets. The support block II is threadedly connected with a limiting bolt II, and the limiting bolt II is passed through the waist-shaped holes at the other end of the multiple elastic sheets.

8. The orthopedic care joint limiting device according to claim 2, characterized in that: The damping mechanism comprises: An arc-shaped barrel body, the bottom end of which is fixedly connected to the connecting rod II, and a non-Newtonian fluid is arranged in the arc-shaped barrel body; An arc-shaped guide rod, the bottom end of which is fixedly connected to the connecting rod I, the top end of which is fixedly connected to a shear plate, the peripheral wall of which is close to the inner wall of the arc-shaped barrel body, and a plurality of overflow holes are provided on the shear plate; A sealing member is fixedly connected in the arc-shaped barrel body, and the sealing member is sealingly connected to the arc-shaped guide rod.

9. The orthopedic care joint limiting device according to claim 8, characterized in that: The sealing component includes a limiting cylinder, the outer wall of which is fixedly connected to the inner wall of the arc-shaped barrel body, the inner wall of the limiting cylinder is connected to a plurality of annular sealing sheets, the annular sealing sheets are sealingly connected to the arc-shaped guide rod, a plurality of conical cylinder sheets are also arranged on the inner wall of the limiting cylinder, the plurality of conical cylinder sheets and the plurality of annular sealing sheets are staggered, the conical cylinder sheets are close to the peripheral wall of the arc-shaped guide rod, and the conical cylinder sheets are used to reduce the pressure of the non-Newtonian fluid when it flows out.

10. The orthopedic care joint limiting device according to claim 2, characterized in that: The two connecting rods I are respectively provided with guide grooves I, an extension plate I is slidably connected in the guide grooves I, a connecting seat I is integrally provided at the end of the extension plate I, the two connecting seats I are connected with a connecting assembly II, and a limit screw I is also threadedly connected to the connecting rod I, and the end of the limit screw I abuts against the extension plate I; The two connecting rods II are respectively provided with guide grooves II, an extension plate II is slidably connected in the guide grooves II, a connecting seat II is integrally provided at the end of the extension plate II, the two connecting seats II are connected with a connecting assembly III, and a limit screw II is also threadedly connected to the connecting rod II, and the end of the limit screw II abuts against the extension plate II; The connection components II and III have the same structure as the connection component I.

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