Ankle joint contracture extension brace

Abstract

The present application provides a kind of ankle contracture extension support tool, belong to medical support field.It includes box, including fixed sleeve one and fixed sleeve two, the fixed sleeve one is fixedly connected with the elastic band between fixed sleeve two, the right end outer surface of fixed sleeve two is fixedly connected with connecting seat, the outer side of connecting seat is provided with mandrel, the outer surface of mandrel is fixedly connected with runner, the outer side of runner is provided with traction assembly, the slot of being opened in the lateral edge of runner is included in traction assembly.The traction assembly is set in the present application, and the positioning hole of different position is selected according to the recovery condition of patient, so that the runner can rotate different angles, the length of traction rope is stretched at this time, the resistance applied to ankle by traction rope also exists greater difference, so as to meet the treatment recovery needs of patients in different stages, effectively improve the flexibility and practicality of traction harness in use, and then help to improve the application range of harness.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of medical stents, more particularly to an ankle joint contracture stretching support device. BACKGROUND

[0002] Ankle joint contracture refers to the pathological changes of soft tissues around the ankle joint, such as muscles, tendons, joint capsules, etc., due to various reasons, leading to adaptive shortening of soft tissues, and further causing joint movement disorders. For ankle joint contracture patients, posture correction, traction exercise and physical therapy are usually used to relieve symptoms.

[0003] In the prior art, professional treatment equipment is usually used to assist in treatment and rehabilitation. For example, the Chinese patent with publication number CN216417454U discloses an acupoint massage type ankle joint external fixation brace. The device can fix and protect the ankle joint fracture, prevent and correct deformity, prevent secondary displacement of the fracture and Achilles tendon contracture, and has the treatment effect of acupoint massage of traditional Chinese medicine, which can effectively relieve pain and promote fracture healing and soft tissue repair.

[0004] The existing ankle joint contracture support device can fix and protect the ankle joint during use, but in the clinical treatment process, as the patient's ankle joint gradually recovers, the exercise rehabilitation intensity for the patient's ankle joint also needs to be gradually increased. However, the existing ankle joint contracture support device cannot adjust the exercise intensity of the ankle joint according to the recovery degree of the patient during use, so the support device needs to be frequently replaced, which has great limitations in actual application. SUMMARY

[0005] In view of the problem in the prior art that the exercise intensity of the support device cannot be flexibly adjusted, the purpose of the present application is to provide an ankle joint contracture stretching support device.

[0006] To solve the above problems, the technical scheme adopted by the present application is as follows:

[0007] An ankle joint contracture stretching support device, comprising a fixed sleeve one and a fixed sleeve two, wherein the fixed sleeve one and the fixed sleeve two are fixedly connected with an elastic belt, the right end outer surface of the fixed sleeve two is fixedly connected with a connecting seat, the outer side of the connecting seat is provided with a mandrel, the outer surface of the mandrel is fixedly connected with a rotating wheel, and the outer side of the rotating wheel is provided with a traction assembly.

[0008] The traction assembly comprises a notch opened in the side of the rotating wheel, the inner surface of the notch is fixedly connected with a stop block, the outer surface of the stop block is fixedly connected with a traction rope, the traction rope is fixedly connected with the outer surface of the second fixed sleeve after being guided and extended through the notch, the outer surface of the rotating wheel is provided with a clamping part, the rotating wheel is movably connected with a pull rod through the clamping part, and the lower end of the pull rod is connected with the first fixed sleeve through a hinged part.

[0009] Optionally, the clamping part comprises a positioning hole opened in the outer surface of the rotating wheel, the inner side of the positioning hole is clamped and connected with a positioning rod, the end of the positioning rod away from the rotating wheel is threadedly connected with a bolt, the outer surface of the positioning rod is rotatably connected with a swing rod, and the number of the positioning holes is several groups and is arranged in a ring array.

[0010] Optionally, the hinged part comprises a movable rod rotatably connected with the lower end of the swing rod, the outer surface of the movable rod is rotatably connected with a traction part, the lower end of the traction part is fixedly connected with the outer surface of the upper end of the first fixed sleeve, the traction rope is made of an elastic material, and the elastic belt is in a circular arc shape.

[0011] Optionally, an adjusting assembly is arranged between the mandrel and the connecting seat, the adjusting assembly comprises a guide sleeve rotatably connected with the outer surface of the mandrel, the outer surface of the guide sleeve is inclined, a through hole is opened in the inner side of the connecting seat, the mandrel penetrates through the connecting seat from front to back through the through hole, a stop ring is fixedly connected with the connecting seat through the through hole, and the outer surface of the guide sleeve is rotatably connected with the inner surface of the through hole at some positions.

[0012] Optionally, the inner surface of the stop ring is spirally transmissionally connected with a movable sleeve, the inner surface of the through hole is slidably connected with a friction block, the friction block is rotatably connected with the movable sleeve, the outer surface of the friction block is slidably contacted with the outer surface of the guide sleeve at the side away from the through hole, a pressure fracture is penetrated through the surface of the guide sleeve, the number of the pressure fractures is several groups and is arranged in a ring array, and the guide sleeve is in a circular ring shape.

[0013] Optionally, a limiting assembly is arranged in the inner side of the connecting seat, the limiting assembly comprises a sliding groove penetrated through and opened in the inner side of the connecting seat, the inner side of the sliding groove is slidably connected with a movable plate, a tooth groove is opened in the outer surface of the movable plate, and a supporting rod is rotatably connected with the movable plate at the lower side and penetrates through.

[0014] Optionally, an installation groove is embeddedly opened in the inner side of the connecting seat, a driving rod is rotatably connected with the inner side of the installation groove, a gear is fixedly connected with the outer surface of the driving rod, the gear is meshingly and transmissionally connected with the tooth groove, the front end of the driving rod penetrates to the outer side of the connecting seat and is fixedly connected with a knob, a locking sleeve is threadedly connected with the outer surface of the driving rod at the outer side of the connecting seat and is in contact with the outer surface of the connecting seat.

[0015] Optionally, the inner side of the elastic band is provided with an air guide assembly, the air guide assembly comprises a cavity embedded in the inner side of the elastic band, a folding groove is formed on the outer surface of the upper end of the elastic band, the folding groove is staggered with the cavity, and an overflow groove is embedded in the inner side of the elastic band and communicates with the inside of the cavity at both ends.

[0016] Optionally, the overflow groove extends to the inside of the fixed sleeve one, the outer surface of the upper end of the fixed sleeve one is fixedly connected with an air outlet, the outer surface of the upper end of the fixed sleeve one is fixedly connected with a one-way air inlet pipe, the one-way air inlet pipe and the air outlet both communicate with the inside of the overflow groove, and the outer surface of the upper end of the elastic band is fixedly connected with a supporting strip.

[0017] Optionally, the left end of the fixed sleeve one is fixedly connected with a sheath one, the outer surface of the lower end of the fixed sleeve two is fixedly connected with a sheath two, the sheath one and the sheath two are fixedly connected with a traction belt, the sheath one and the sheath two are both arc-shaped, the fixed sleeve one and the fixed sleeve two are both made of elastic material, and the number of the pull rods, the rotating wheels and the traction ropes is both two groups and symmetrically distributed on both sides of the connecting seat.

[0018] Compared with the prior art, the technical scheme provided by the present application has at least the following beneficial effects:

[0019] In the above scheme, by arranging the traction assembly, different positioning holes are selected according to the recovery condition of the patient, so that the rotating angle of the rotating wheel can be changed, at this time, the traction rope is stretched to different lengths, and the resistance applied to the ankle by the traction rope also has a large difference, so that the treatment and recovery needs of patients at different stages can be met, the flexibility and practicability of the traction protector during use are effectively improved, and the application range of the protector is further improved.

[0020] By arranging the adjusting assembly, the rotating resistance of the shaft and the rotating wheel can be flexibly adjusted, so that the ankle joint of the patient can be flexibly adjusted during movement rehabilitation, so that the movement intensity of the ankle joint of the patient can be gradually increased, and the auxiliary treatment effect of the patient with ankle joint contracture can be effectively improved.

[0021] By arranging the air guide assembly, during the activity rehabilitation of the ankle joint of the patient, with the continuous movement of the sole of the patient, the circulation of the gas can be effectively realized, so that the probability of the temperature inside the fixed sleeve one 11 being too high due to long-time movement can be effectively reduced, and the discomfort of the patient during the ankle joint traction rehabilitation process is further reduced. BRIEF DESCRIPTION OF DRAWINGS

[0022] The accompanying drawings, which are incorporated herein and constitute part of the specification, illustrate embodiments of the application and, together with the description, further serve to explain the principles of the application and to enable a person skilled in the relevant art to implement and use the application.

[0023] Figure 1 schematic diagram of the overall structure of the present application Figure 1 ;

[0024] Figure 2 schematic diagram of the overall structure of the present application

[0025] Figure 3 schematic diagram of the overall structure of the present application Figure 2 ;

[0026] Figure 4 schematic diagram of the overall structure of the present application

[0027] Figure 5 schematic diagram of the overall structure of the present application Figure 2 schematic diagram of the overall structure of the present application

[0028] Figure 6 schematic diagram of the overall structure of the present application Figure 2 schematic diagram of the overall structure of the present application

[0029] Figure 7 schematic diagram of the overall structure of the present application Figure 6 schematic diagram of the overall structure of the present application

[0030] Figure 8 schematic diagram of the overall structure of the present application Figure 1 schematic diagram of the overall structure of the present application

[0031] Figure 9 schematic diagram of the overall structure of the present application Figure 5 schematic diagram of the overall structure of the present application

[0032] Figure 10 schematic diagram of the overall structure of the present application Figure 6 schematic diagram of the overall structure of the present application

[0033] [Reference signs]

[0034] 11, fixed sleeve one; 12, sheath one; 13, traction belt; 14, sheath two; 15, fixed sleeve two; 16, traction seat; 17, movable rod; 18, pull rod; 19, elastic belt; 20, cavity; 21, connecting seat; 22, runner; 23, positioning rod; 24, stop block; 25, bolt; 26, sliding groove; 27, notch; 28, positioning hole; 29, movable plate; 30, mounting groove; 31, gear; 32, driving rod; 33, gear slot; 34, knob; 35, locking sleeve; 36, air outlet; 37, supporting rod; 38, traction rope; 39, mandrel; 40, guide sleeve; 41, friction block; 42, check ring; 43, movable sleeve; 44, fracture; 45, overflow groove; 46, folding groove; 47, one-way air inlet pipe; 48, supporting strip; 49, through hole.

[0035] As shown in the drawings, in order to clearly show the structure of the embodiments of the present application, specific structures and devices are marked in the drawings, but this is only for the need of illustration, and is not intended to limit the present application to the specific structures, devices and environments, and those skilled in the art can adjust or modify these devices and environments according to specific needs. DETAILED DESCRIPTION

[0036] The present application will now be described in detail with reference to the accompanying drawings and specific embodiments. It should be noted that the following embodiments are the best, preferred embodiments, and other alternative embodiments can also be implemented by those skilled in the art for some known technologies; and the drawings are only used to more specifically describe the embodiments, and are not intended to specifically limit the present application.

[0037] It should be noted that in the specification, "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" and the like indicate that the described embodiment can include a specific feature, structure or property, but not necessarily every embodiment includes the specific feature, structure or property. In addition, when a specific feature, structure or property is described in combination with an embodiment, it should be within the knowledge of those skilled in the art to implement such a feature, structure or property in combination with other embodiments (whether or not explicitly described).

[0038] Generally, the terms can be understood at least in part from the context in which they are used. For example, depending on the context, the term "one or more" as used herein can be used to describe any feature, structure, or characteristic in the singular or can be used to describe combinations of features, structures, or characteristics, in the plural, without necessarily dictating whether any such feature, structure, or characteristic is required, desired, or necessary only once, or some multiple thereof. Additionally, the term "based on" can be understood as not necessarily of exclusive alternatives, but rather as allowing for additional implicit factors known to those of ordinary skill in the art to exist in some capacity so as to at least partially underlie a decision, action, or statement.

[0039] It can be understood that the meanings of "on", "above" and "over" in the present application should be interpreted in the broadest way, so that "on" not only means "directly on" something, but also includes the meaning of "on" something with intervening features or layers therebetween, and "above" or "over" not only means the meaning of "above" or "over" something, but also can include the meaning of "above" or "over" something without intervening features or layers therebetween.

[0040] Moreover, spatially relative terms, such as "beneath", "below", "lower", "above", "upper" and the like, can be used herein for ease of description to describe one element or feature's relationship to another element(s) or feature(s) as illustrated in the figures. The spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientations depicted in the figures. The devices can be otherwise oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.

[0041] As shown in Figures 1 to 10 The present application provides a kind of ankle contracture stretching support appliance, including fixed sleeve one 11 and fixed sleeve two 15, the fixed sleeve one 11 with the fixed sleeve two 15 between fixed connection has elastic band 19, the right end outer surface of the fixed sleeve two 15 is fixedly connected with connecting seat 21, the outer side of connecting seat 21 is provided with mandrel 39, the outer surface of mandrel 39 is fixedly connected with runner 22, the outer side of runner 22 is provided with traction assembly.

[0042] The traction assembly includes notch 27 in the side of runner 22, the inner surface of notch 27 is fixedly connected with stopper 24, the outer surface of stopper 24 is fixedly connected with traction rope 38, the traction rope 38 is fixedly connected with the outer surface of fixed sleeve two 15 after being guided and extended through notch 27, the outer surface of runner 22 is provided with clamping part, the runner 22 is movably connected with pull rod 18 by clamping part, the lower end of pull rod 18 is connected with fixed sleeve one 11 by hinged part.

[0043] The clamping part includes positioning hole 28 in the outer surface of runner 22, the inner side of positioning hole 28 is clampedly connected with positioning rod 23, the end of positioning rod 23 away from runner 22 is screw-connected with bolt 25, the outer surface of positioning rod 23 is rotatably connected with swing rod, the number of positioning hole 28 is several groups and is annularly arrayed.

[0044] The hinged part includes movable rod 17 rotatably connected with the lower end of swing rod, the outer surface of movable rod 17 is rotatably connected with traction part in the middle, the lower end of traction part is fixedly connected with the outer surface of the upper end of fixed sleeve one 11, the traction rope 38 is made of elastic material, the elastic band 19 is in the shape of circular arc.

[0045] By adopting the technical scheme, the fixing sleeve one 11 is sleeved at the sole of the patient, and the fixing sleeve two 15 is sleeved at the lower leg of the patient, the fixing sleeve one 11 and the fixing sleeve two 15 are made of elastic material, and can be closely attached to the sole and the lower leg of the patient, when the ankle joint of the patient is stretched, the patient hooks up the sole, at this time, the sole drives the fixing sleeve one 11 to move upward synchronously, the fixing sleeve one 11 drives the traction seat 16 and the movable rod 17 to move synchronously when moving, the fixing sleeve one 11 is hinged with the pull rod 18 through the traction seat 16 and the movable rod 17, and drives the pull rod 18 to be pulled, the pull rod 18 is movably connected with the rotating wheel 22 through the positioning rod 23 and the positioning hole 28, the bolt 25 at one end of the positioning rod 23 can limit the pull rod 18, so that the probability that the pull rod 18 slides off the surface of the positioning rod 23 is reduced, the rotating wheel 22 is driven to rotate around the mandrel 39 through the swing of the pull rod 18, the rotating wheel 22 is fixed and supported by the stop block 24 in the slot 27, the rotating wheel 22 winds the traction rope 38 in the slot 27 in the process of rotating, and the other end of the traction rope 38 is fixedly connected with the fixing sleeve two 15, the traction rope 38 is stretched with the rotation of the rotating wheel 22, at this time, the elasticity of the traction rope 38 is converted into resistance that needs to be overcome in the process of traction of the ankle joint of the patient, so as to be beneficial to the rehabilitation treatment of the ankle joint of the patient.

[0046] When the patient resets the sole downward, the pull rod 18 is reversely moved through the fixing sleeve one 11, so that the rotating wheel 22 is reversely rotated and reset through the pull rod 18, in the actual application process, the number of the positioning holes 28 is several groups, the operator can select the positioning holes 28 at different positions according to the recovery condition of the patient, so that the rotating wheel 22 rotates at different angles, at this time, the traction rope 38 is stretched at different lengths, the resistance applied to the ankle by the traction rope 38 also has great difference, so that the treatment and recovery needs of the patient at different stages can be met, the flexibility and practicability of the traction protector in the process of use are effectively improved, and then the application range of the protector is helped to improve.

[0047] As shown in Figure 5 and Figure 9 , the mandrel 39 and the connecting seat 21 are provided with an adjusting assembly, the adjusting assembly comprises a guide sleeve 40 rotatably connected with the outer surface of the mandrel 39, the outer surface of the guide sleeve 40 is inclined, a through hole 49 is formed in the inner side of the connecting seat 21, the mandrel 39 penetrates through the connecting seat 21 through the through hole 49, the connecting seat 21 is fixedly connected with a stop ring 42 through the through hole 49, and the outer surface of the guide sleeve 40 is rotatably connected with the inner surface of the through hole 49.

[0048] The inner surface of the blocking ring 42 is spirally connected with a movable sleeve 43, the inner surface of the through hole 49 is slidably connected with a friction block 41, the friction block 41 is rotatably connected with the movable sleeve 43, the outer surface of the friction block 41 is slidably contacted with the outer surface of the guide sleeve 40 away from the through hole 49, the surface of the guide sleeve 40 is penetrated with a pressure fracture 44, the number of the pressure fracture 44 is several groups and is arranged in a ring array, and the guide sleeve 40 is in a circular ring shape.

[0049] By adopting the above technical scheme, in order to flexibly adjust the rotating resistance of the rotating wheel 22, the adjusting assembly is arranged, the connecting seat 21 rotatably supports the core shaft 39 through the adjusting assembly, when it is needed to increase the rotating resistance of the rotating wheel 22, the operator rotates the movable sleeve 43, the movable sleeve 43 is connected with the blocking ring 42 through the spiral transmission, and the movable sleeve 43 is moved along the axis direction of the core shaft 39 in the rotating process, the movable sleeve 43 pushes the friction block 41 to slide along the inner surface of the through hole 49 in the movement process, the friction block 41 gradually slides with the guide sleeve 40, the surface of the guide sleeve 40 is inclined, the gradual movement of the friction block 41 can extrude the guide sleeve 40, so that the friction between the friction block 41 and the guide sleeve 40 is increased, the surface of the guide sleeve 40 is penetrated with several groups of ring array distributed pressure fractures 44, the pressure fractures 44 can reduce the deformation resistance of the guide sleeve 40, the guide sleeve 40 is elastically deformed by a certain amplitude under the extrusion of the friction block 41, so that the guide sleeve 40 is more closely attached to the surface of the core shaft 39, the rotating resistance of the core shaft 39 and the rotating wheel 22 can be flexibly adjusted through the adjusting assembly, the ankle joint movement resistance of the patient can be flexibly adjusted when the ankle joint of the patient is moved and recovered, so that the movement intensity of the ankle joint of the patient can be gradually increased, and the auxiliary treatment effect of the ankle joint contracture patient can be effectively improved.

[0050] As shown in Figure 1 , Figure 7 and Figure 8 , the inner side of the connecting seat 21 is provided with a limiting assembly, the limiting assembly comprises a sliding groove 26 penetratingly arranged in the inner side of the connecting seat 21, the inner side of the sliding groove 26 is slidably connected with an activity plate 29, the outer surface of the activity plate 29 is penetrated with a gear slot 33, the lower side of the activity plate 29 is rotatably connected with a supporting rod 37, and the outer surface of the lower end of the supporting rod 37 is rotatably contacted with the traction rope 38.

[0051] The mounting groove 30 is embedded in the inner side of the connecting seat 21, the driving rod 32 is rotationally connected in the inner side of the mounting groove 30, the gear 31 is fixedly connected to the outer surface of the driving rod 32, the gear 31 is in meshing transmission connection with the tooth groove 33, the front end of the driving rod 32 penetrates to the outer side of the connecting seat 21 and is fixedly connected with the knob 34, the outer surface of the driving rod 32 is threadedly connected with the locking sleeve 35 outside the connecting seat 21, and the locking sleeve 35 is in contact with the outer surface of the connecting seat 21.

[0052] By adopting the above technical scheme, in order to further improve the flexibility of adjusting the movement strength of the protective equipment, the operator rotates the locking sleeve 35, the locking sleeve 35 is threadedly connected with the driving rod 32 and is out of contact with the surface of the connecting seat 21 in the process of rotation, then the operator rotates the driving rod 32 through the knob 34, thereby driving the gear 31 to rotate synchronously through the driving rod 32, the gear 31 is in meshing transmission connection with the tooth groove 33 on the surface of the movable plate 29, and the movable plate 29 is driven to slide upward along the inner side of the sliding groove 26 in the process of rotation, the movable plate 29 drives the supporting rod 37 to move upward synchronously in the process of movement, the supporting rod 37 drives the traction rope 38 to deflect upward, and the supporting rod 37 can guide the traction rope 38 well in the process of movement of the traction rope 38, so that the movement of the traction rope 38 is more stable, the position of the supporting rod 37 is adjusted flexibly through the limiting assembly, the position of the traction rope 38 can be adjusted, so as to adjust the stretching length of the traction rope 38, when the initial length of the traction rope 38 is relatively long, the elastic force of the traction rope 38 that needs to be overcome by the rotating wheel 22 in the process of rotation also increases, thereby further improving the convenience of adjusting the rotating resistance of the rotating wheel 22, and the convenience and flexibility of the protective equipment in use are effectively improved.

[0053] As shown in the figure, Figure 6 As shown in the figure, Figure 10 As shown in the figure, the elastic belt 19 is provided with a gas guiding assembly, the gas guiding assembly comprises a cavity 20 embedded in the inner side of the elastic belt 19, a folding groove 46 is formed in the outer surface of the upper end of the elastic belt 19, the folding groove 46 is staggered with the cavity 20, an overflow groove 45 is embedded in the inner side of the elastic belt 19, and the two ends of the overflow groove 45 are communicated with the inside of the cavity 20.

[0054] The overflow groove 45 extends to the inside of the fixed sleeve one 11, the gas outlet hole 36 is fixedly connected to the inner surface of the upper end of the fixed sleeve one 11, the one-way air inlet pipe 47 is fixedly connected to the outer surface of the upper end of the fixed sleeve one 11, and the one-way air inlet pipe 47 and the gas outlet hole 36 are both communicated with the inside of the overflow groove 45.

[0055] By adopting the above technical scheme, in order to further improve the comfort of the patient during the ankle rehabilitation process, the air guide assembly is arranged, when the fixed sleeve one 11 is turned up with the patient's foot, the elastic band 19 will produce a certain amplitude of bending, the folding groove 46 on the surface of the elastic band 19 can reduce the resistance in the folding process of the elastic band 19, the elastic band 19 will extrude the cavity 20 inside the elastic band 19 when bending, the air in the cavity 20 of the several groups will enter the overflow groove 45 inside, and then the gas will enter the fixed sleeve one 11 inside under the guidance of the overflow groove 45, and then be discharged through the air outlet hole 36 inside the fixed sleeve one 11. The circulation of the gas in the fixed sleeve one 11 can improve the air permeability and comfort of the fixed sleeve one 11 during use. When the elastic band 19 is reversely bent, the space inside the cavity 20 increases, and at this time a certain negative pressure is generated inside the cavity 20. The external air will enter the overflow groove 45 and the cavity 20 inside through the one-way air inlet pipe 47 on the surface of the fixed sleeve one 11, so as to fill the cavity 20 and the overflow groove 45 with appropriate air. During the ankle movement rehabilitation process of the patient, with the continuous movement of the patient's foot, the circulation of the gas can be effectively realized, so as to effectively reduce the probability of high temperature in the fixed sleeve one 11 due to long time movement, and further help to reduce the discomfort of the patient during the ankle traction rehabilitation process.

[0056] As shown in Figure 1 With Figure 2 As shown, the fixed sleeve one 11 is fixedly connected with the sheath one 12 at the left end, the fixed sleeve two 15 is fixedly connected with the sheath two 14 at the lower end, the sheath one 12 and the sheath two 14 are fixedly connected with the traction belt 13, the sheath one 12 and the sheath two 14 are arc-shaped, the fixed sleeve one 11 and the fixed sleeve two 15 are made of elastic material, the number of the pull rod 18, the rotating wheel 22 and the traction rope 38 is two groups and symmetrically distributed on both sides of the connecting seat 21.

[0057] By adopting the above technical scheme, the sheath one 12 covers other parts of the patient's foot, and the sheath two 14 covers the patient's calf. The sheath one 12 and the sheath two 14 can disperse the pressure during the movement of the patient's ankle, so as to avoid the concentration of pressure at the positions of the fixed sleeve one 11 and the fixed sleeve two 15, and at the same time can play a certain protection effect on the patient's leg. The traction belt 13 can improve the stability of the sheath one 12 and the sheath two 14 during movement. The symmetric distribution of the pull rod 18, the rotating wheel 22 and the traction rope 38 can effectively improve the uniformity of stress.

[0058] The working process of the technical scheme provided by the application is as follows:

[0059] In use, the fixed sleeve one 11 is sleeved on the sole of the patient, the fixed sleeve two 15 is sleeved on the lower leg of the patient, then the patient hooks up the sole, the connecting seat 21 is supported by the rotation of the mandrel 39 through the adjusting assembly, the fixed sleeve one 11 is hinged with the pull rod 18 through the traction seat 16 and the movable rod 17, the pull rod 18 is pulled, the rotating wheel 22 is driven to rotate around the mandrel 39 through the swing of the pull rod 18, the traction rope 38 is wound in the slot 27 in the rotating process of the rotating wheel 22, the elastic force of the traction rope 38 is converted into the resistance that needs to be overcome in the traction process of the ankle joint of the patient, thereby being beneficial to the rehabilitation treatment of the ankle joint of the patient, the adjusting assembly extrudes the guide sleeve 40 through the movement of the friction block 41, thereby making the guide sleeve 40 more closely fit the surface of the mandrel 39, the traction rope 38 is deflected upward through the supporting rod 37, the supporting rod 37 can play a good guiding role on the traction rope 38 in the movement of the traction rope 38, thereby making the movement of the traction rope 38 more stable, the position of the supporting rod 37 is flexibly adjusted through the limiting assembly, the position of the traction rope 38 can be adjusted, so as to adjust the stretching length of the traction rope 38, the cavity 20 inside the elastic band 19 is extruded when the elastic band 19 is bent, the gas is guided into the inside of the fixed sleeve one 11 under the guiding role of the overflow groove 45, the circulation of the gas in the fixed sleeve one 11 is realized through the sprayed gas, thereby being able to improve the air permeability and comfort in the use process of the fixed sleeve one 11.

[0060] The above only describes the preferred embodiments of the present application, and it should be noted that, for those skilled in the art, without departing from the principles of the present application, several improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the present application.

Claims

1. An ankle contracture stretching brace comprising a first sleeve and a second sleeve, wherein: The elastic band is fixedly connected between the first fixing sleeve and the second fixing sleeve, the connecting seat is fixedly connected to the outer surface of the right end of the second fixing sleeve, the mandrel is arranged outside the connecting seat, the rotating wheel is fixedly connected to the outer surface of the mandrel, and the traction assembly is arranged outside the rotating wheel. ​ The traction assembly comprises a notch formed in the side edge of the rotating wheel, a stop block is fixedly connected to the inner surface of the notch, a traction rope is fixedly connected to the outer surface of the stop block, the traction rope is fixedly connected to the outer surface of the second fixing sleeve after being guided and extended through the notch, the rotating wheel is provided with an engaging portion on the outer surface, a pull rod is movably connected to the rotating wheel through the engaging portion, and the lower end of the pull rod is connected to the first fixing sleeve through a hinged portion. The engaging portion comprises a positioning hole formed in the outer surface of the rotating wheel, a positioning rod is clamped and connected to the inner side of the positioning hole, a bolt is threadedly connected to the end of the positioning rod away from the rotating wheel, and the outer surface of the positioning rod is rotatably connected to a swing rod. The hinged portion comprises a movable rod rotatably connected to the lower end of the swing rod, a traction portion is rotatably connected to the outer surface of the movable rod, the lower end of the traction portion is fixedly connected to the outer surface of the upper end of the first fixing sleeve, and the traction rope is made of an elastic material.

2. The ankle contracture stretching brace of claim 1, wherein, The elastic band is in the shape of a circular arc.

3. The ankle contracture extension brace of claim 2, wherein, An adjusting assembly is arranged between the mandrel and the connecting seat, the adjusting assembly comprises a guide sleeve rotatably connected to the outer surface of the mandrel, the outer surface of the guide sleeve is inclined, a through hole is formed in the inner side of the connecting seat, the mandrel penetrates through the connecting seat from front to back through the through hole, a check ring is fixedly connected to the connecting seat through the through hole, and the outer surface of the guide sleeve is rotatably connected to the inner surface of the through hole at some positions.

4. The ankle contracture extension brace of claim 3, wherein, A movable sleeve is spirally transmissionally connected to the inner surface of the check ring, a friction block is slidingly connected to the inner surface of the through hole, the friction block is rotatably connected to the movable sleeve, the outer surface of the friction block is slidingly in contact with the outer surface of the guide sleeve on the side away from the through hole, a pressure fracture is formed through the surface of the guide sleeve, the number of the pressure fractures is several groups and they are arranged in a ring array, and the guide sleeve is in the shape of a ring.

5. The ankle contracture extension brace of claim 4, wherein, A limiting assembly is arranged in the inner side of the connecting seat, the limiting assembly comprises a sliding groove formed through the inner side of the connecting seat, a movable plate is slidingly connected to the inner side of the sliding groove, a tooth groove is formed in the outer surface of the movable plate, a supporting rod is rotatably connected to the lower side of the movable plate, and the supporting rod is rotatably in contact with the outer surface of the lower end of the traction rope.

6. The ankle contracture extension brace of claim 5, wherein, An installation groove is embeddedly formed in the inner side of the connecting seat, a driving rod is rotatably connected to the inner side of the installation groove, a gear is fixedly connected to the outer surface of the driving rod, the gear is transmissionally connected to the tooth groove in a meshing mode, the front end of the driving rod penetrates to the outer side of the connecting seat and is fixedly connected to a knob, a locking sleeve is threadedly connected to the outer surface of the driving rod on the outer side of the connecting seat, and the locking sleeve is in contact with the outer surface of the connecting seat.

7. The ankle contracture extension brace of claim 6, wherein, An air guiding assembly is arranged in the inner side of the elastic band, the air guiding assembly comprises a cavity embeddedly formed in the inner side of the elastic band, a folding groove is formed in the outer surface of the upper end of the elastic band, the folding groove and the cavity are alternately arranged, an overflow groove is embeddedly formed in the inner side of the elastic band, and the two ends of the overflow groove are in communication with the inside of the cavity.

8. The ankle contracture extension brace of claim 7, wherein, The overflow groove extends to the interior of the fixed sleeve, the upper end of the inner surface of the fixed sleeve is fixedly connected to an air outlet, the outer surface of the upper end of the fixed sleeve is fixedly connected to a one-way air inlet pipe, the one-way air inlet pipe and the air outlet are both connected to the interior of the overflow groove, and the outer surface of the upper end of the elastic band is fixedly connected to a support bar.

9. The ankle contracture extension brace of claim 8, wherein, The left end of the fixed sleeve 1 is fixedly connected to the sleeve 1, the outer surface of the lower end of the fixed sleeve 2 is fixedly connected to the sleeve 2, and a traction belt is fixedly connected between the sleeve 1 and the sleeve 2. The sleeve 1 and the sleeve 2 are both arc-shaped. The fixed sleeve 1 and the fixed sleeve 2 are both made of elastic material. The number of the pull rod, the rotating wheel and the traction rope are all two groups and are symmetrically distributed on both sides of the connecting seat.

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