CN212699250U

CN212699250U - Buffering formula knee joint brace of treatment knee hyperextension

Info

Publication number: CN212699250U
Application number: CN202020961819.5U
Authority: CN
Inventors: 陈志标; 钟原; 陈楚玲; 陈焕州; 冼祖新; 刘映芬; 朱俊志
Original assignee: Zhongshan Hospital of TCM
Current assignee: Zhongshan Hospital of TCM
Priority date: 2020-05-29
Filing date: 2020-05-29
Publication date: 2021-03-16
Anticipated expiration: 2030-05-29

Abstract

The utility model discloses a buffering formula knee joint brace of treatment knee hyperextension, include: the lower branch piece of coaxial rotation connection, go up branch piece and carousel piece, it has a plurality of fender position grooves to distribute around its axis of rotation circumference on the carousel piece, it is provided with the joint spare with fender position groove elastic combination to go up the activity of branch piece, it links to each other with the carousel piece to order about the torque device that the carousel piece resets to go up to be equipped with on the branch piece, be equipped with on the branch piece and be used for preventing the spacing part of carousel piece forward swing and can drive the joint spare and keep off the unblock part that the position groove keeps separating with keeping off, it can order about the joint spare to switch over to keeping off the position groove with another and combine together to go up the relative lower branch piece of branch piece forward swing, it ties up the subassembly to be equipped with at least a set of first bundle that is used for fixing on. The knee joint brace is simple in structure and high in wearing comfort, and can provide elastic feedback stimulation for the knee joint to prevent the situation of knee hyperextension.

Description

Buffering formula knee joint brace of treatment knee hyperextension

Technical Field

The invention relates to the technical field of medical instruments, in particular to a buffering type knee joint brace for treating hyperextension of a knee.

Background

The existing stroke survivors in China are about 1100 or more thousands of people, 240 or more thousands of people who first suffer from stroke every year, most patients after stroke can recover certain walking ability, but about half of patients still have knee hyperextension during walking, the functional recovery of the patients is hindered, bone joint diseases are caused, and the life quality of the patients is seriously influenced.

The knee joint brace is the most effective method for treating the hyperextension of the knee, can input correct sensory information for a human body, provides stable support for the knee joint, is beneficial to exercising muscle groups near the knee joint, reduces the mechanical load of an affected compartment of the knee joint and relieves the pain of the knee joint.

The knee joint brace that is used for the too-extending problem of knee behind the treatment cerebral apoplexy is mostly restricted the angle of flexion and extension of knee joint through the angularly adjustable mode, but this type of knee joint brace is rigid restriction to the spacing of wearer's knee joint, can't carry out effectual feedback stimulation, and it is poor to wear the travelling comfort, leads to the patient to lack resistant heart and compliance easily, reduces treatment.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims at providing a buffering formula knee brace of treatment knee hyperextension, this knee brace's simple structure, wear the travelling comfort height, can provide the amazing condition in order to prevent the knee hyperextension of elastic feedback for the knee joint to improve the treatment effect to the knee hyperextension.

The utility model provides a technical scheme that its technical problem adopted is:

the utility model discloses a buffering formula knee joint brace of treatment knee hyperextension, include: the upper support piece is provided with a torque device which is connected with the rotating disc piece and drives the rotating disc piece to reset, the lower support piece is provided with a limiting component used for preventing the rotating disc piece from swinging forwards and an unlocking component capable of driving the clamping component to keep separation from the blocking slot, the upper support piece can swing forwards relative to the lower support piece and drive the clamping component to be switched to be combined with the other blocking slot, the lower support piece is provided with at least one group of first bundling components used for being fixed on shanks, and the upper support piece is provided with at least one group of second bundling components used for being fixed on thighs. When the buffer type knee joint brace is used, the first bundling component and the second bundling component are used for respectively bundling shanks and thighs of a user, the lower supporting part and the rotating shaft of the upper supporting part and the rotating disc part are aligned to the rotating position of the knee joint of the user, when the upper supporting part swings forwards, the clamping part rotates to be combined with the other blocking groove, the rotating disc part abuts against the limiting part to be static relative to the lower supporting part, the torque device generates torque for driving the upper supporting part to swing backwards and reset, the larger the angle along with forward swinging of the upper supporting part is, the larger the torque is, the effect of treating knee hyperextension is achieved, when the thighs bend relative to the shanks, the upper supporting part swings backwards until the unlocking part pushes the clamping part to be separated from the blocking groove, and the rotating disc part and the torque device reset to perform the next working cycle. The knee joint brace is simple in structure and high in wearing comfort, and can provide elastic feedback stimulation for the knee joint to prevent the situation of knee hyperextension.

As the utility model discloses a preferred embodiment, the upper portion of lower branch spare is all located to spacing part, unblock part, spacing part, unblock part are located the both sides of carousel spare respectively, avoid taking place to interfere with unblock part spacing part in the motion process, go up the relative lower branch spare of branch spare and swing forward so that carousel spare and spacing part offset and lean on, go up the relative lower branch spare of branch spare and swing backward so that unblock part orders about the joint spare and breaks away from and keeps off the position groove.

As a further preferred aspect of the above technical solution, the unlocking component is opposite to the limiting component, and when the turntable contacts with the limiting component, the unlocking component contacts with the clamping component, the upper support swings forward at the position to enable the torque device to generate a pulling force, and swings backward at the position to enable the turntable and the torque device to reset, so as to avoid that the torque device 5 cannot reset due to insufficient buckling angle of thighs of some patients relative to crus, and further avoid that the next working cycle cannot be performed normally.

As the utility model discloses a preferred embodiment, carousel spare is a ratchet, the tooth's socket of ratchet constitutes keep off the position groove, joint spare be with ratchet assorted pawl is connected with between this pawl and the carousel spare and orders about the pawl and keep off the elastic component that resets that the position groove combined together. When the upper support piece swings forwards by a small angle, the pawl can enter the other blocking groove to stabilize the torque provided by the torque device, when the thigh of a user bends backwards relative to the shank and the unlocking part does not trigger the clamping piece to be separated from the blocking groove, the torque device is in a stable state and does not generate a force effect on the leg of the user, so that the rebound phenomenon can not be generated, and the knee joint and the muscle group nearby the knee joint are protected from loss.

Preferably, in some embodiments of the present invention, an arc guide groove is formed on the upper support, the limiting component is a guide post reciprocating in the arc guide groove, and the turntable is provided with an arc guide block located on one side of the guide post and reciprocating in the arc guide groove. The upper support piece and the lower support piece can rotate relatively through the matching of the guide column and the arc guide groove, the turntable piece and the upper support piece can rotate relatively through the matching of the arc guide block and the arc guide groove, and the upper support piece, the lower support piece and the turntable piece are connected together in a pivoted mode without a pivot and a pivoting hole.

Preferably, in order to reduce the difficulty of production and manufacture, the upper support member and the lower support member are both formed by a strip-shaped plastic plate, and the limiting component and the unlocking component are integrally injection-molded with the lower support member.

The utility model discloses an in some implementations, torque device includes that one end is fixed go up the extension spring subassembly on the piece, the other end of extension spring subassembly pass through the haulage rope with the carousel spare is connected, upward be equipped with on the piece and be used for the tensioning the fixed pulley assembly of haulage rope. The torque device is simple in structure, reliable in working mode and good in stability, and can provide elastic feedback stimulation to prevent the situation of knee hyperextension. In other embodiments, the torque device can be replaced by a torsion spring or other structures capable of driving the upper support to swing backwards and reset.

Preferably, the extension spring subassembly includes fixed peg, activity peg and at least one extension spring, fixed peg is fixed to be set up on last piece, the both ends of extension spring can be dismantled with fixed peg and activity peg respectively and be connected so that change different extension springs and come the different exercise intensity of adaptation, wherein, the haulage rope is connected and the warp is connected with activity peg and carousel piece respectively and the wire rope of fixed pulley subassembly for both ends.

In order to avoid damage to parts and human body injury, a protective cover is arranged on the upper supporting piece and covers the outer portions of the torque device and the turntable piece.

In order to improve the disassembly and assembly efficiency of the buffer type knee joint brace for treating hyperextension of knee, the first bundling component and the second bundling component are magic tape components.

Drawings

The present invention will be further explained with reference to the drawings and examples.

Fig. 1 is a schematic structural view of the cushioning knee brace of the present invention;

FIG. 2 is a schematic view of the FIG. 1 with the protective cover removed;

FIG. 3 is a schematic view of the upper support member of FIG. 2 in a forward swinging position relative to the lower support member;

fig. 4 is a schematic view of a state where the upper support member of fig. 3 swings backward;

fig. 5 is a schematic view of the upper support member of fig. 4 continuing to swing back to a state where the unlocking member disengages the catching member from the catching groove.

Detailed Description

This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.

Referring to fig. 2 to 5, the utility model discloses a buffering formula knee joint brace of treatment knee hyperextension, include: a lower support member 1, an upper support member 2 and a turntable member 3 which are coaxially and rotatably connected, wherein a plurality of stop grooves 31 are distributed on the turntable member 3 around the circumference of a rotating shaft, the upper support 2 is movably provided with a clamping piece 4 which is elastically combined with the stop groove 31, the upper support 2 is provided with a torque device 5 which is connected with the turntable 3 to drive the turntable 3 to reset, the lower support 1 is provided with a limiting component 11 for preventing the turntable 3 from swinging forwards and an unlocking component 12 capable of driving the clamping piece 4 to keep separating from the stop groove 31, the forward swing of the upper support 2 relative to the lower support 1 can drive the engaging member 4 to switch to engage with another retaining groove 31, the lower support 1 is provided with at least one group of first bundling assemblies 6 for fixing on the lower leg, and the upper support 2 is provided with at least one group of second bundling assemblies 7 for fixing on the upper leg.

When the cushioning knee brace is used, the first bundling component 6 and the second bundling component 7 are respectively bound on the lower leg and the thigh of a user, the rotating shafts of the lower support 1, the upper support 2 and the turntable 3 are aligned with the rotating position of the knee joint of the user, as shown in fig. 2, in an initial state, the included angle between the upper support 2 and the lower support 1 is about 165 degrees, as shown in fig. 3, when the upper support 2 swings forwards, the clamping part 4 rotates anticlockwise to be clamped with the other blocking groove 31, at this time, the included angle between the upper support 2 and the lower support 1 is between 165 degrees and 180 degrees, the turntable 3 is abutted against the limiting part 11 to be static relative to the lower support 1, the torque device 5 generates torque for driving the upper support 2 to swing backwards and reset, the torque generated by the torque device 5 is larger along with the increase of the angle of the forward swing of the upper support 2, so as to generate resistance to prevent the knee hyperextension phenomenon, referring to fig. 4, when the thigh is flexed relative to the calf, the upper support member 2, the clamping member 4 and the rotating disc member 3 are swung backwards as a whole, referring to fig. 5, when the upper support member 2 is swung until the unlocking part 12 pushes the clamping member 4 to separate from the stop groove 31, the rotating disc member 3 is reset under the action of the torque device 5, and both the rotating disc member 3 and the torque device 5 are restored to the state as shown in fig. 2, so that the next working cycle is performed. The knee joint brace is simple in structure and high in wearing comfort, and can provide elastic feedback stimulation for the knee joint to prevent the situation of knee hyperextension.

As the utility model discloses a preferred embodiment, the upper portion of lower branch spare 1 is all located to spacing part 11, unblock part 12, spacing part 11, unblock part 12 are located carousel piece 3's both sides respectively, avoid spacing part 11 and unblock part 12 to take place to interfere in the motion process, go up 2 relative lower branch spares 1 forward swings so that carousel piece 3 offsets with spacing part 11 and lean on, go up 2 relative lower branch spares 1 backward swings so that unblock part 12 orders about joint 4 and breaks away from and keeps off a groove 31.

As a further preferred aspect of the above technical solution, the unlocking part 12 is opposite to the limiting part 11, and when the turntable 3 is in contact with the limiting part 11, the unlocking part 12 is in contact with the clamping part 4, the upper support 2 swings forward at the position to generate a pulling force for the torque device 5, the upper support 2 swings backward at the position to reset the turntable 3 and the torque device 5, and the clamping part 4 and the stopper groove 31 can be separated when the flexion angle of the thigh relative to the calf is small, so that the situation that the torque device 5 cannot be reset due to insufficient flexion angle of the thigh relative to the calf of some patients is avoided, and further the situation that the next working cycle cannot be performed normally is avoided.

Referring to fig. 2 to 5, as a preferred embodiment of the present invention, the rotating plate 3 is a ratchet wheel, the tooth space of the ratchet wheel forms the stop groove 31, the engaging member 4 is a pawl matched with the ratchet wheel, and a return elastic member for driving the pawl to be combined with the stop groove 31 is connected between the pawl and the rotating plate 3. When the upper support 2 swings forward by a slight angle, the pawl can enter the other blocking groove 31 to stabilize the torque provided by the torque device 5, when the thigh of the user bends backward relative to the shank and the unlocking part 12 does not trigger the clamping part 4 to separate from the blocking groove 31, the torque device 5 is in a stable state, and no force is generated on the leg of the user, so that the rebound phenomenon can not be generated, and the knee joint and the muscle group nearby the knee joint can be protected from loss.

Referring to fig. 2 to 5, preferably, in some embodiments of the present invention, an arc guide groove 21 is formed on the upper support 2, the limiting component 11 is a guide post reciprocating in the arc guide groove 21, and an arc guide block 32 reciprocating in the arc guide groove 21 and located on one side of the guide post is disposed on the turntable 3. The relative rotation of the upper support part 2 and the lower support part 1 can be realized through the matching of the guide columns and the arc guide grooves 21, the relative rotation of the turntable part 3 and the upper support part 2 can be realized through the matching of the arc guide blocks 32 and the arc guide grooves 21, and the upper support part 2, the lower support part 1 and the turntable part 3 are pivoted together without a pivot and a pivoting hole.

Preferably, in order to reduce the difficulty of manufacturing, the upper support 2 and the lower support 1 are both made of a strip-shaped plastic plate, and the limiting component 11 and the unlocking component 12 are integrally injection-molded with the lower support 1.

Referring to fig. 2, in some embodiments of the present invention, the torque device 5 includes a tension spring assembly 51 having one end fixed to the upper support member 2, the other end of the tension spring assembly 51 is connected to the turntable member 3 through a pulling rope 52, and the upper support member 2 is provided with a fixed pulley assembly 53 for tensioning the pulling rope 52. The torque device 5 is simple in structure, reliable in working mode and good in stability, and can provide elastic feedback stimulation to prevent the situation of knee hyperextension. In other embodiments, the torque device 5 may be replaced by a torsion spring or the like capable of driving the upper support 2 to swing back and return.

Referring to fig. 2, preferably, the tension spring assembly 51 includes a fixed hanging rod 511, a movable hanging rod 512 and at least one tension spring 513, the fixed hanging rod 511 is fixedly disposed on the upper supporting member 2, two ends of the tension spring 513 are detachably connected with the fixed hanging rod 511 and the movable hanging rod 512 respectively so as to facilitate replacement of different tension springs 513 for adapting to different exercise strengths, wherein the traction rope 52 is a steel wire rope, two ends of which are connected with the movable hanging rod 512 and the rotating disk member 3 respectively and are wound around the fixed pulley assembly 53.

Referring to fig. 1, in order to prevent the damage of parts and human body, a protective cover 8 is provided on the upper support 2 to cover the torque device 5 and the turntable 3.

In order to improve the disassembly and assembly efficiency of the buffer type knee joint brace for treating hyperextension of knee, the first bundling component 6 and the second bundling component 7 are magic tape components.

The above embodiments are merely preferred embodiments of the present invention, and the present invention may also have other embodiments, such as reasonable combinations of the technical solutions recorded in the embodiments. Equivalent modifications or substitutions may be made by those skilled in the art without departing from the spirit of the invention, and such equivalent modifications or substitutions are intended to be included within the scope of the claims set forth herein.

Claims

1. A cushioned knee brace for treating hyperextension of the knee, comprising:

the lower support piece (1), the upper support piece (2) and the turntable piece (3) are coaxially and rotatably connected, a plurality of blocking grooves (31) are distributed on the turntable piece (3) around the circumference of a rotating shaft of the turntable piece, a clamping piece (4) elastically combined with the blocking grooves (31) is movably arranged on the upper support piece (2), a torque device (5) connected with the turntable piece (3) to drive the turntable piece (3) to reset is arranged on the upper support piece (2), a limiting part (11) used for preventing the turntable piece (3) from swinging forwards and an unlocking part (12) capable of driving the clamping piece (4) and the blocking grooves (31) to keep separation are arranged on the lower support piece (1), the upper support piece (2) can swing forwards relative to the lower support piece (1) to drive the clamping piece (4) to be switched to be combined with the other blocking groove (31), and at least one group of first binding assemblies (6) used for being fixed on legs is arranged on the lower support piece (1), the upper support (2) is provided with at least one group of second strapping components (7) for fixing on the thigh.

2. The cushioned knee brace of claim 1, wherein:

the upper portion of a piece (1) under spacing part (11), unblock part (12) are all located, spacing part (11), unblock part (12) are located the both sides of carousel piece (3) respectively, go up a piece (2) and swing forward so that carousel piece (3) and spacing part (11) counterbalance lean on down relatively, go up a piece (2) and swing backward so that unblock part (12) order about joint piece (4) break away from and keep off position groove (31) down relatively.

3. The cushioned knee brace of claim 2, wherein:

the unlocking part (12) is opposite to the limiting part (11), and when the turntable piece (3) is contacted with the limiting part (11), the unlocking part (12) is contacted with the clamping piece (4).

4. The cushioned knee brace of claim 1, wherein:

the turntable piece (3) is a ratchet wheel, the tooth grooves of the ratchet wheel form the stop grooves (31), the clamping piece (4) is a pawl matched with the ratchet wheel, and a reset elastic piece for driving the pawl to be combined with the stop grooves (31) is connected between the pawl and the turntable piece (3).

5. The cushioned knee brace of claim 1, wherein:

an arc guide groove (21) is formed in the upper supporting piece (2), the limiting part (11) is a guide column which reciprocates in the arc guide groove (21), and an arc guide block (32) which is located on one side of the guide column and reciprocates in the arc guide groove (21) is arranged on the turntable piece (3).

6. The cushioned knee brace of claim 5, wherein:

the upper support piece (2) and the lower support piece (1) are both formed by long-strip-shaped plastic plates, and the limiting part (11), the unlocking part (12) and the lower support piece (1) are integrally formed in an injection molding mode.

7. The cushioned knee brace of claim 1, wherein:

the torque device (5) comprises a tension spring assembly (51) with one end fixed on the upper support piece (2), the other end of the tension spring assembly (51) is connected with the turntable piece (3) through a traction rope (52), and a fixed pulley assembly (53) used for tensioning the traction rope (52) is arranged on the upper support piece (2).

8. The cushioned knee brace of claim 7, wherein:

extension spring subassembly (51) are including fixed peg (511), activity peg (512) and at least one extension spring (513), fixed peg (511) are fixed to be set up on last piece (2), the both ends of extension spring (513) can be dismantled with fixed peg (511) and activity peg (512) respectively and be connected, haulage rope (52) are connected and the warp winding with activity peg (512) and carousel spare (3) respectively for both ends the wire rope of fixed pulley subassembly (53).

9. The cushioned knee brace of claim 1, wherein:

and the upper support piece (2) is provided with a protective cover (8) which covers the torque device (5) and the turntable piece (3).

10. The cushioned knee brace of claim 1, wherein:

the first bundling assembly (6) and the second bundling assembly (7) are both magic tape assemblies.