Achilles tendon boot structure beneficial to gait walking

Abstract

The invention provides an achilles tendon boot structure beneficial to gait walking, which comprises a sole, an instep limiting structure and a heel pad which are arranged in a split manner, the two sides of the sole are provided with symmetrical side protection plates, and the sides, close to the achilles tendon, of the two side protection plates are connected through an achilles tendon protection structure; the two side protecting plates are connected through a flexible connecting piece; when the front side of the shoe sole tilts upwards and the rear side of the shoe sole is flatly placed on the ground, the included angle between the front side of the shoe sole and the ground is 23-32 degrees. The method is mainly based on the behavior characteristics that after the achilles tendon operation or injury, the achilles tendon cannot bear the weight and can only walk on tiptoe with the forefoot. The achilles tendon boot structure beneficial to gait walking has the advantages of being scientific in design, easy and convenient to operate and good in protection effect, and is suitable for achilles tendon postoperative rehabilitation protection tools.

Description

Technical Field

[0001] The invention relates to a medical rehabilitation training auxiliary equipment, in particular to an Achilles tendon boot structure which is beneficial to gait walking. Background Art

[0002] The Achilles tendon is located at the back of the ankle, with the distal end connected to the calcaneal tuberosity and the proximal end connected to the triceps surae. It is the most powerful tendon in the human body and plays an important role in plantar flexion and dorsiflexion of the ankle joint. It is very important for people's standing support, daily walking and sports. When the Achilles tendon is stretched beyond its tolerance, it will rupture or tear the Achilles tendon. After the Achilles tendon is ruptured or torn, if the medical imaging shows that the wound surface is small or a small part of the tear is small, conservative treatment can be used. However, during conservative treatment, the physiological phenomenon of scar tissue will fill the Achilles tendon rupture or tear area, replacing the toughness and elasticity of the ligament itself, causing the Achilles tendon function after overall recovery to lose its original strength and toughness, and its functional effect is poor; if the fracture surface is large or the tear part is large, it is best to use surgery. The surgical treatment of Achilles tendon rupture mainly includes open repair surgery and minimally invasive surgery. Among them, minimally invasive surgery has the characteristics of small injury surface, fast recovery, and good functional effect, and is widely used.

[0003] Currently, postoperative fixation is generally divided into two steps: the first step is to fix the ankle plantar flexion position of 30° to 40° through a fixed brace or plaster bandage after surgery, and keep the ankle plantar flexion position for two to six weeks to promote the growth of Achilles tendon tissue. Patients can also choose to use an Achilles tendon boot for fixation support; the second step is to perform gait adaptation exercises for 4 to 8 weeks after the plaster or brace is removed. During this process, the heel angle of the Achilles tendon boot needs to be constantly adjusted so that the Achilles tendon is gradually stretched after surgery without secondary injury. During this gait rehabilitation process, the Achilles tendon boot can better protect the Achilles tendon after surgery and effectively stretch it, which is conducive to the gradual recovery of Achilles tendon function.

[0004] At present, there are many types of Achilles tendon boots on the market, such as: a lightweight Achilles tendon boot disclosed in Chinese patent CN109044585A, an Achilles tendon boot angle adjustment device disclosed in Chinese patent CN211049741U, a new Achilles tendon boot disclosed in Chinese patent CN213098608U, an Achilles tendon boot assembly for patients with Achilles tendon rupture disclosed in Chinese patent CN218391373U, an Achilles tendon boot with leveling function disclosed in Chinese patent CN116942390A, an Achilles tendon boot brace and its manufacturing method disclosed in Chinese patent CN108354701A, etc. The structures and functions of these Achilles tendon boots can meet the needs of postoperative rehabilitation of Achilles tendon. However, these Achilles tendon boots also have some disadvantages such as bulky structure, limited adjustment angle, cumbersome wearing and poor postoperative fixation effect, hot and airtight in summer, etc. At the same time, after Achilles tendon surgery or severe injury, the Achilles tendon or the hind heel cannot bear weight, but in order for the Achilles tendon to slowly return to its previous load-bearing state, slow rehabilitation training is required. Therefore, when patients wear Achilles tendon boots, the front end of the Achilles tendon boots actually becomes the main load-bearing area. However, when using Achilles tendon boots, they are heavy and the flat bottom structure of the Achilles tendon boots is not conducive to the load-bearing of the forefoot. When users exert force, they are prone to side slipping, causing secondary injuries.

[0005] In order to solve the above problems, people have been seeking an ideal technical solution. Summary of the invention

[0006] The purpose of the present invention is to provide an Achilles tendon boot structure that is beneficial to gait walking, in view of the deficiencies in the prior art.

[0007] In order to achieve the above object, the technical solution adopted by the present invention is: The invention discloses an Achilles tendon boot structure which is beneficial to gait walking, comprising a separately arranged sole, a dorsal limiting structure and a heel pad, wherein symmetrical side guards are arranged on both sides of the sole, and the sides of the two side guards close to the Achilles tendon are connected by the Achilles tendon protection structure; the two side guards are connected by a flexible connecting piece; the front side of the sole is upwardly tilted, and when the rear side of the sole is flat on the ground, the angle between the front side of the sole and the ground is 23° to 32°.

[0008] The rear side of the heel pad abuts against the inner side of the Achilles tendon protection structure, the two sides of the heel pad abut against the inner side of the side guard plate, the front side of the heel pad is an inclined surface, and the cross-sectional area of ​​the heel pad gradually increases from top to bottom; the top surface of the heel pad is an arc surface and adapts to the contour of the heel.

[0009] The heel pad includes several separately arranged pads, the top surface area of ​​each pad gradually decreases, the pad with the largest cross-sectional area is directly placed on the sole, and among the other pads, the bottom surface of one pad is the same as the top surface of another pad, and several pads are stacked together as a heel pad; the top surface of each pad is a curved surface and adapts to the contour of the heel.

[0010] The instep limiting structure is a instep limiting plate adapted to the instep, and the rear end of the instep limiting plate is bent and extended upward to be aligned with the upper end of the Achilles tendon protection structure.

[0011] The Achilles tendon protection structure is a rear foot protection plate adapted to the Achilles tendon portion of the heel, with a smooth transition between the rear foot protection plate and the side protection plates, and the upper side of the rear foot protection plate bulges upward in a dovetail shape.

[0012] A plurality of buckles are respectively arranged on the side guard plates, and the buckles on the two side guard plates are connected by a flexible connecting piece, and a Velcro assembly is arranged on the flexible connecting piece.

[0013] A number of heat dissipation holes are evenly arranged on the side guard plate and the instep limit plate.

[0014] The angle between the inclined surface and the sole is 30°-40°.

[0015] The present invention has outstanding substantive features and significant progress compared to the prior art. Specifically, the present invention provides an Achilles tendon boot structure that is conducive to gait walking, and is mainly used by people who are recovering from severe Achilles tendon injuries after surgery. After the Achilles tendon is injured, especially after surgery, the Achilles tendon needs to be fixed in a position of 30 to 40 degrees of dorsiflexion for 1-2 weeks. After the fixation is removed, patients can often carry out simple daily life and walk with crutches wearing Achilles tendon boots. During this period, the Achilles tendon cannot bear weight, and daily life is mainly achieved by "tiptoeing" on the forefoot of the present application. The next 2-6 months require targeted rehabilitation training for patients to gradually adapt the injured Achilles tendon to the stretched state. Compared with the Achilles tendon boot structure of the prior art, the heel pad in the present invention has a stronger adaptive ability, and the patient's use of the force on the hindfoot is uniform, and the body comfort is higher.

[0016] The present invention can achieve postoperative fixation, early rehabilitation training of the front part of the toes, angle adjustment of the rear end of the shoe, gait training, etc. through the design of the front end and rear end structures of the Achilles tendon boot, which is beneficial to dorsiflexion and plantar flexion training of the foot, improves the recovery of the overall function of the foot, and promotes the rapid recovery of the Achilles tendon function.

[0017] The length of the Achilles tendon of each person is different, so the fixing angle of the Achilles tendon surgery is also different. The present invention can add or subtract pads as needed to adjust the height of the heel pad to meet the needs of different patients and different recovery periods. At the same time, the sole of the Achilles tendon boot is tilted upward to facilitate the load-bearing of the forefoot and avoid side slipping when the user exerts force, causing secondary injury.

[0018] On the basis of ensuring the functions of protection, adjustment, support, etc., the weight of the overall structure of the present invention is reduced to 40% of the original weight, which greatly improves the comfort of the user, reduces the burden of long-term weight bearing on the injured leg, and improves the user satisfaction of the Achilles tendon boot. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of the present invention.

[0020] Figure 2 This is a schematic diagram of the state of the foot contacting the ground after the Achilles tendon is injured.

[0021] Figure 3 It is a schematic diagram of the Achilles tendon boot of the present invention cooperating with an injured foot.

[0022] Figure 4 It is a schematic diagram of a heel pad of the present invention.

[0023] In the figure: A1- walking posture after Achilles tendon injury; A2- ground; S1- instep limiting structure; S2- heat dissipation hole; S3- buckle; S4- Velcro assembly; S5- Achilles tendon protection structure; S6- front side of the sole; S7- side guard plate; S8- injured foot; S9- heel pad; S10- inclined plane; S11- cushion layer. DETAILED DESCRIPTION

[0024] The technical solution of the present invention is further described in detail below through specific implementation methods.

[0025] like Figure 1-4 As shown, an Achilles tendon boot structure that is conducive to gait walking includes a separately arranged sole, an instep limiting structure S1 and a heel pad S9. Symmetrical side guards S7 are arranged on both sides of the sole. The two side guards S7 are connected by an Achilles tendon protection structure S5 on the side close to the Achilles tendon, which can better protect the Achilles tendon in a targeted manner; the two side guards S7 are connected by a flexible connector; the front side S6 of the sole is tilted upward, and when the rear side of the sole is flat on the ground, the angle between the front side S6 of the sole and the ground is 23° to 32°. Specifically, referring to the attached drawings, the side guards are L-shaped as a whole, extending from both sides of the sole to both sides of the calf; in terms of materials, the present invention can adopt common bandages and breathable plates, and the overall guard plate structure is mainly based on resin and foam materials. The tilted part of the front section of the forefoot in the natural state is a polymer rubber dual-material forefoot sole, and the buffering effect and elasticity are more conducive to the load-bearing of the forefoot and the forefoot pushing off the ground during gait.

[0026] After Achilles tendon surgery or severe injury, the Achilles tendon or heel cannot bear weight. In order for the Achilles tendon to slowly return to its previous weight-bearing state, slow rehabilitation training is required. Figure 3As shown, the walking posture after the Achilles tendon is injured refers to A1. At this time, the patient needs to walk on tiptoe, and the back of the foot is at a certain angle to the ground A2. Therefore, when the patient wears the Achilles tendon boot, the front end of the Achilles tendon boot actually becomes the main load-bearing area. However, when the Achilles tendon boot is currently used, the biggest disadvantage is that it is heavy, and the flush structure and the flat structure of the bottom of the Achilles tendon boot are not conducive to the load-bearing of the forefoot, which will cause the user to slip when exerting force, and will cause secondary injuries. In the present invention, the front side S6 of the sole is tilted upward, and when the rear side of the sole is flat on the ground, the angle between the front side S6 of the sole and the ground is 23° to 32°, which can cooperate with the injured foot S8 to the greatest extent to walk on tiptoe to bear the force, cooperate with the supporting effect of the heel pad, facilitate walking with dorsiflexion of the foot, effectively protect the Achilles tendon affected part, and realize the slow stretching of the injured Achilles tendon, which is conducive to the rehabilitation training of the internal muscles of dorsiflexion and plantar flexion of the foot, and promote the rapid recovery of the Achilles tendon structure.

[0027] Preferably, the front end of the Achilles boot is configured as an arc structure, which is conducive to lifting the forefoot without being tripped, and is more conducive to pushing the forefoot off the ground.

[0028] In one embodiment, the rear side of the heel pad S9 abuts against the inner side of the Achilles tendon protection structure S5, the two sides of the heel pad S9 abut against the inner side of the side guard plate S7, the front side of the heel pad S9 is an inclined surface S10, and the cross-sectional area of ​​the heel pad S9 gradually increases from top to bottom; the top surface of the heel pad S9 is an arc surface and adapts to the contour of the heel. Preferably, the top surface of the heel pad is an arc-shaped step surface and a circular load-bearing area, which is more conducive to the shape matching of the human heel and the compliant connection of the multi-layer structure.

[0029] In one embodiment, the heel pad S9 includes several separately arranged cushion layers S11, the top surface area of ​​each cushion layer S11 gradually decreases, the cushion layer S11 with the largest cross-sectional area is directly placed on the sole, and among the other cushion layers S11, the bottom surface of one cushion layer S11 is the same as the top surface of another cushion layer S11, and several cushion layers S11 are stacked together as the heel pad S9; the top surface of each cushion layer S11 is an arc surface and conforms to the contour of the heel. The heel pad is a detachable structure and is placed in the heel area of ​​the Achilles tendon boot. As the Achilles tendon recovers, the thickness of the heel pad can be reduced layer by layer, so that the Achilles tendon is gradually stretched and slowly recovers.

[0030] In one embodiment, the instep limit structure S1 is a instep limit plate adapted to the instep, and the rear end of the instep limit plate is bent upward and extended to align with the upper end of the Achilles tendon protection structure S5. The instep limit plate can be made of acrylonitrile-butadiene-styrene copolymer material with a certain hardness and elasticity, and the thickness is about 1.5-2mm. During use, the upper side of the instep limit plate and the rear foot protection plate extends above the ankle.

[0031] In one embodiment, the Achilles tendon protection structure S5 is a rear foot protection plate adapted to the Achilles tendon of the heel, with a smooth transition between the rear foot protection plate and the side protection plate S7, and the upper side of the rear foot protection plate bulges upward in a dovetail shape. This "dovetail" structural bulge can well protect the Achilles tendon position, reduce weight and facilitate wearing.

[0032] In one embodiment, a plurality of buckles S3 are respectively provided on the side guard plates S7, and the buckles S3 on the two side guard plates S7 are connected by a flexible connector, and a Velcro assembly S4 is provided on the flexible connector. Specifically, the flexible connector can be a flexible belt, and the Velcro assembly mainly adopts a fleece surface and a hook surface commonly used in the prior art, and the fleece surface and the hook surface are respectively sewn / bonded with the flexible belt. During use, the flexible belt passes through the buckle, and the hook surface and the fleece surface of the Velcro are buckled and connected. Referring to the attached drawings, at least two groups of buckles are provided, one group is close to the forefoot sole, and the other group is close to the upper side of the ankle.

[0033] In one of the embodiments, a plurality of heat dissipation holes S2 are evenly arranged on the side guard plate S7 and the instep limit plate, which not only reduces weight but also facilitates heat dissipation.

[0034] In one embodiment, the angle between the inclined surface S10 and the sole is 30°-40°, which facilitates supporting the rear sole of the foot.

[0035] Method of using the Achilles tendon boot: The present invention is suitable for patients who have undergone Achilles tendon surgery or have been seriously injured. First, loosen the limiting Velcro of the buckle and loosen the connection between the two side guards. At the same time, put the heel pad as a whole into the rear end of the Achilles tendon boot to pad the injured Achilles tendon so that the Achilles tendon will not be stretched, and the injured foot S8 is padded. After the injured foot S8 is stepped on as a whole, tighten the flexible connector, which is the fur surface and hook surface of the Velcro. The instep limiting structure is close to the instep, fixing the forefoot, ankle Achilles tendon, and the upper end of the Achilles tendon, which plays a role in protecting the injured Achilles tendon. At the same time, the forefoot section of the sole is a polymer rubber dual-material forefoot sole, so that daily walking is achieved without affecting basic life. As time goes by, the heel pad can be removed layer by layer to stretch the Achilles tendon and restore it to a normal state.

[0036] The above embodiments can be combined with each other.

[0037] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, ordinary technicians in the field should understand that the specific implementation methods of the present invention can still be modified or some technical features can be replaced by equivalents without departing from the spirit of the technical solution of the present invention, which should be included in the scope of the technical solution for protection of the present invention.

Claims

1. An Achilles tendon boot structure that is beneficial to gait walking, characterized in that: It includes a separately arranged sole, a dorsal limiting structure and a heel pad. Symmetrical side guards are arranged on both sides of the sole. The two side guards close to the Achilles tendon are connected by an Achilles tendon protection structure. The two side guards are connected by a flexible connector. The front side of the sole is upwardly tilted, and when the back side of the sole is flat on the ground, the angle between the front side of the sole and the ground is 23° to 32°.

2. The Achilles tendon boot structure that facilitates gait walking according to claim 1, characterized in that: The rear side of the heel pad abuts against the inner side of the Achilles tendon protection structure, the two sides of the heel pad abut against the inner side of the side guard plate, the front side of the heel pad is an inclined surface, and the cross-sectional area of ​​the heel pad gradually increases from top to bottom; the top surface of the heel pad is an arc surface and adapts to the contour of the heel.

3. The Achilles tendon boot structure that facilitates gait walking according to claim 2, characterized in that: The heel pad includes several separately arranged pads, the top surface area of ​​each pad gradually decreases, the pad with the largest cross-sectional area is directly placed on the sole, and among the other pads, the bottom surface of one pad is the same as the top surface of another pad, and several pads are stacked together as a heel pad; the top surface of each pad is a curved surface and adapts to the contour of the heel.

4. The Achilles tendon boot structure that facilitates gait walking according to claim 3, characterized in that: The instep limiting structure is a instep limiting plate adapted to the instep, and the rear end of the instep limiting plate is bent and extended upward to be aligned with the upper end of the Achilles tendon protection structure.

5. The Achilles tendon boot structure that facilitates gait walking according to claim 4, characterized in that: The Achilles tendon protection structure is a rear foot protection plate adapted to the Achilles tendon portion of the heel, with a smooth transition between the rear foot protection plate and the side protection plates, and the upper side of the rear foot protection plate bulges upward in a dovetail shape.

6. The Achilles tendon boot structure that facilitates gait walking according to claim 5, characterized in that: A plurality of buckles are respectively arranged on the side guard plates, and the buckles on the two side guard plates are connected by a flexible connecting piece, and a Velcro assembly is arranged on the flexible connecting piece.

7. The Achilles tendon boot structure that facilitates gait walking according to claim 6, characterized in that: A number of heat dissipation holes are evenly arranged on the side guard plate and the instep limit plate.

8. The Achilles tendon boot structure that facilitates gait walking according to claim 7, characterized in that: The angle between the inclined surface and the sole is 30°-40°.

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