CN215839757U

CN215839757U - Knee, ankle and foot orthosis

Info

Publication number: CN215839757U
Application number: CN202022975596.0U
Authority: CN
Inventors: 练志坚; 劳永华; 崔耀鹏
Original assignee: Heyi Shide Foshan Technology Co ltd
Current assignee: Foshan Gongqiao Medical Equipment Co.,Ltd.
Priority date: 2020-12-07
Filing date: 2020-12-07
Publication date: 2022-02-18
Anticipated expiration: 2030-12-07

Abstract

The utility model discloses a knee, ankle and foot orthosis, which comprises: a shank fixing part, a foot support part and a sole outer side support part; the shank fixing part comprises a bearing part for fixing the shank part and a supporting part connected with the bearing part; the shank fixing part is connected to the upper end of the foot support part through the supporting part; the inner side of the foot support part is matched with the bottom of the sole of a human foot in shape, and the outer side of the foot support part is provided with an arched outer foot arch part; the top surface of the outer sole support is in a shape suitable for being tightly matched with the outer arch part, and the bottom surface of the outer sole support is a horizontal plane; the outer side supporting piece of the sole is detachably connected below the foot support part. According to the utility model, the sole outer side supporting piece is additionally arranged below the foot support part, the bottom of the sole outer side supporting piece is of a stable horizontal plane structure, so that the supporting stability is enhanced, when a patient has leg weakness in a standing and walking state, the patient is not easy to fall down to the outer side, the risk of personal injury is reduced, the safety of the knee, ankle and foot orthosis is enhanced, and meanwhile, the correction of O-shaped legs is facilitated.

Description

Knee, ankle and foot orthosis

Technical Field

The utility model relates to the field of medical instruments, in particular to a knee, ankle and foot orthosis.

Background

Patients with hemiplegia, stroke, and other non-neurological injuries can develop various pathological symptoms in the later rehabilitation process, such as foot drop with varus, toe curl or dorsal extension, and the ankle-foot orthosis is a rehabilitation orthosis for correcting and preventing the symptoms.

The traditional ankle-foot orthosis generally comprises a lower leg fixing part and a foot support part which are connected with each other, when the traditional ankle-foot orthosis is worn, the lower leg fixing part is bound on the lower leg of a patient, and the foot of the patient is worn in the foot support part; in order to ensure the comfortable wearing of the patient, the foot support part is usually tightly attached to the sole of the foot, and the shape of the foot support part is similar to that of a common insole. However, the problem of stability of standing and walking of a patient after the patient suffers from pathological changes is not solved; because the arch of the foot of a person is arched and is suspended from the ground to a certain extent, the muscles of the crus and the feet of a patient with cerebral apoplexy are easy to be weak, the gait is difficult to control, the standing and walking stability is very poor, when the ankle-foot orthosis is worn to move, if the foot and the leg are weak, the body is easy to fall down and tip over towards the direction of the outer arch of the foot (namely the arch part connecting the heel and the small toes), and particularly under the conditions of walking and going upstairs and downstairs, the safety risk is very high, and serious personal injury is caused.

In addition, the traditional ankle-foot orthosis can only correct the ankle and the foot, and lacks the function of correcting symptoms such as O-shaped legs and the like.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a knee, ankle and foot orthosis, which can solve the problem that the existing ankle and foot orthosis has poor standing stability and walking stability when in use.

The utility model is realized by adopting the following technical scheme:

a knee, ankle and foot orthosis comprising: a shank fixing part, a foot support part and a sole outer side support part; the shank fixing part comprises a bearing part for fixing the shank part and a supporting part connected with the bearing part; the shank fixing part is connected to the upper end of the foot support part through the supporting part; the top surface of the foot support part is matched with the bottom of the sole of a human foot in shape, and the outer side of the foot support part is provided with an arched outer foot arch part; the top surface of the plantar outer side supporting piece is in a shape suitable for being tightly matched with the outer arch part, and the bottom surface of the plantar outer side supporting piece is a horizontal plane; the outer side supporting piece of the sole is detachably connected to the lower part of the foot support part.

Furthermore, a groove is formed in the bearing part, and the edge of the groove is suitable for being matched with a patellar ligament part of a human body.

Further, the plantar lateral support is made of an elastic material.

Furthermore, the shank fixing part and the foot support part are detachably connected.

Furthermore, the shank fixing part and the foot support part are in rotatable connection with adjustable angles.

Furthermore, a first fluted disc is fixedly arranged at the upper end of the foot support part, a second fluted disc is arranged at the lower end of the supporting part of the shank fixing part, and a plurality of teeth are circumferentially arranged on the end surfaces of the first fluted disc and the second fluted disc; the first toothed disc and the second toothed disc are meshed with each other through the teeth and fixedly connected through a fastener.

Furthermore, the foot support part also comprises a foot support connecting part extending upwards, and the foot support connecting part is arranged on the outer side of the foot support part; the lower end of the supporting part extends towards the outer side and is connected with the foot support connecting part, so that the shank fixing part is connected with the foot support part; the first fluted disc is fixedly arranged on the outer side of the foot support connecting part, and the second fluted disc is fixedly arranged on the inner side of the supporting part.

Furthermore, a plurality of reinforcing ribs are arranged on the outer side surface of the foot support connecting part.

Furthermore, a plurality of reinforcing ribs are arranged on the outer side surface of the shank fixing part.

Further, the knee, ankle and foot orthosis is made of nylon material.

Compared with the prior art, the utility model can achieve the following beneficial effects: after the ankle-foot orthosis is worn, the shank fixing part is fixed on the shank part of a patient, the foot support part supports the sole part of the patient, and the ankle and the foot of the patient are fixed at a specific angle through the angle formed by the shank fixing part and the foot support part, so that the ankle-foot orthosis is beneficial to orthopedic recovery and pathological changes prevention; and the sole outer side supporting piece is additionally arranged below the foot support part, which is equivalent to filling the arched outer arch part, the bottom of the foot support part is of a stable horizontal plane structure, so that the supporting stability is enhanced, the patient is not easy to fall down to the outer side when the leg is weak in a standing or walking state, the risk of personal injury is reduced, and the safety of the knee, ankle and foot orthosis is enhanced. At night or in a rest state, the angle between the shank fixing part and the foot support part is adjusted to achieve the effect of tensioning the muscles and the achilles tendon, and prevent the muscles and the achilles tendon from being diseased and atrophied in the rest state. Meanwhile, the leg fixing device can fix the lower leg and is beneficial to correcting the O-shaped leg.

Drawings

FIG. 1 is a left side, i.e., outside, view of the present invention;

FIG. 2 shows a right side view, i.e., an inside view, of the present invention;

FIG. 3 illustrates a rear view of the present invention;

FIG. 4 is a top view of the present invention;

FIG. 5 is a top view of the lateral plantar support;

FIG. 6 shows a rear view of the foot rest;

FIG. 7 is a perspective view of the foot rest portion connected to the lateral plantar support member;

FIG. 8 shows a right side, medial side view of the foot rest;

fig. 9 shows a side view of a preferred embodiment of the present invention.

In the figure: 10. a shank securing portion; 11. a load bearing part; 111. a groove; 12. a support portion; 13. a second fluted disc; 20. a foot rest portion; 21. a first fluted disc; 22. a foot rest connecting part; 23. air holes are formed; 30. a plantar lateral support; 40. and (5) reinforcing ribs.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the detailed description, and it should be noted that any combination of the embodiments or technical features described below can be used to form a new embodiment without conflict.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Referring to fig. 1-4, the present invention discloses a knee, ankle and foot orthosis, comprising: a lower leg fixing part 10, a foot rest part 20 and a plantar outer side support part 30. The lower leg fixing part 10 comprises a bearing part 11 and a supporting part 12, wherein the bearing part 11 is used for being fixed at the lower leg part of a patient, and the supporting part 12 is connected with the bearing part 11 and plays a supporting role; the lower leg fixing part 10 is connected to the upper end of the foot rest part 20 through the supporting part 12, and the lower leg fixing part 10 and the foot rest part 20 may be connected at a fixed angle or may be connected in a rotatable manner with an adjustable angle. The foot support part 20 is used for supporting the sole part of the patient, and the top surface of the foot support part 20 is matched with the bottom of the sole of the patient so as to fit the sole of the patient and improve the wearing comfort; the outer side of the foot rest 20 has an arched outer arch portion adapted to fit the outer arch of the patient. Referring to fig. 5-7, the top surface of the outer plantar support 30 is shaped to fit closely to the outer arch, the bottom surface of the outer plantar support 30 is horizontal, and the outer plantar support 30 is detachably connected to the underside of the foot rest 20. Referring to fig. 5, the lateral plantar support 30 is used to support the lateral foot and heel.

After wearing, the shank fixing part 10 is fixed on the shank part of a patient, the foot rest part 20 supports the sole part of the patient, and the ankle of the patient is fixed at a specific angle through the angle formed by the shank fixing part 10 and the foot rest part 20, so that the orthopaedic rehabilitation and the pathological change prevention are facilitated; in addition, the sole outer side supporting piece 30 is additionally arranged below the foot support part 20, which is equivalent to filling the arched outer arch part, the bottom of the foot support part is of a stable horizontal plane structure, so that the supporting stability of the knee, ankle and foot orthosis is enhanced, when a patient has leg weakness in a standing and walking state, the patient is not easy to fall down to the outer side, the risk of personal injury is reduced, and the safety of the knee, ankle and foot orthosis is enhanced. At night or under the rest condition, can pull down sole outside support piece 30, can reduce the burden to ankle foot, improve patient's recovered experience.

The sole of a person is provided with an inner arch and an outer arch, the inner arch and the outer arch are both suspended with the ground, and the inner side of the sole is always in a stable state because the legs and the trunk of the person are in a stable triangle-like structure; the outer side of the sole is not supported, and the arch-shaped outer foot arch is also provided, so that when a person is in a standing or walking posture, the outer side direction is in an unstable state, and the person is easy to topple towards the outer side when legs are weak. Therefore, referring to fig. 5, the outer plantar support 30 of the present invention fits and supports the outer arch of the foot rest 20 without supporting the inner arch, which can save materials; of course, the lateral plantar support 30 may be further configured to conform to the shape of both the medial and lateral arches, supporting both the medial and lateral arches.

The support portion 12 is connected to the outer side of the foot rest portion 20, and the support portion 12 can apply an inward force to the lower leg of a patient suffering from an O-leg, which corresponds to a fixing action for the lower leg, and contributes to the correction of the O-leg.

Preferably, referring to fig. 3, the weight bearing portion 11 is formed with a groove 111, and an edge of the groove 111 is adapted to fit with a patellar ligament of a human body. Referring to fig. 4, the load-bearing part 11 of the lower leg fixing part 10 is an open-loop structure, which is convenient for the lower leg of the patient to be inserted and fixed. In the past, knee, ankle and foot orthotics generally adopt a tibia load-bearing structure, namely a load-bearing part 11 is fixed on a tibia part of a lower leg, when the knee, ankle and foot orthotics are used, the tibia part can be directly stressed, and the lower leg tibia is basically covered by a thin layer of skin, so that no enough muscle or ligament can be used for buffering, and a patient can easily feel pain and discomfort after being in a stressed state for a long time. According to the knee-ankle-foot orthosis, the groove 111 is formed in the bearing part 11, the patella is just placed in the groove 111, the patella ligament is in contact with the edge of the groove 111, the patella ligament has good toughness and a buffering effect, a patient does not feel pain or discomfort easily when the patella ligament is subjected to external force, and the wearing comfort of the knee-ankle-foot orthosis is greatly improved.

In order to ensure wearing comfort for the patient, it is preferable that the plantar outer supports 30 are made of an elastic material; the material selected specifically may be any one of EVA, TPU, rubber, silica gel, or other known common elastic materials.

Preferably, the lower leg fixing part 10 and the foot rest part 20 are detachably connected. The knee ankle foot orthosis adopts a structure that the lower leg fixing part 10 and the foot support part 20 can be separated, so that the parts can be conveniently replaced, and meanwhile, the modular production is facilitated. Specifically, because the sizes of the feet of different patients are different and the lengths of the shanks are different, the knee, ankle and foot orthotics are manufactured in a private customization mode in the past, so that the production cost is high and the manufacturing is troublesome; the utility model can produce the shank fixing parts 10 and the foot rest parts 20 with various sizes and specifications in batch by manufacturing the shank fixing parts 10 and the foot rest parts 20 into the separated detachable structures, and then directly assemble the shank fixing parts 10 and the foot rest parts 20 by selecting accessories with proper sizes according to the specific size of each patient to obtain the knee, ankle and foot orthosis with the adaptive size.

In stroke patients or other patients with non-neurological impairment, the achilles tendon is most susceptible to atrophic lesions in resting, sleeping, relaxing and unconscious states. Therefore, in the above state, the patient needs to wear the knee-ankle-foot orthosis for correction and prevention, and the correction angle formed by the lower leg fixing part 10 and the foot support part 20 of the knee-ankle-foot orthosis is different for different patients with different pathological changes or different rehabilitation stages of the same patient. Therefore, it is preferable that the lower leg fixing part 10 and the foot support part 20 are rotatably connected at an adjustable angle, so that the angle can be adjusted to improve the adaptability of the knee, ankle and foot orthosis.

More preferably, referring to fig. 1-2 and 8, a first toothed plate 21 is fixedly disposed at an upper end of the foot support portion 20, a second toothed plate 13 is disposed at a lower end of the support portion 12 of the lower leg fixing portion 10, and a plurality of teeth are disposed on end surfaces of the first toothed plate 21 and the second toothed plate 13 in a circumferential direction, wherein the teeth of the two toothed plates are adapted to each other. The first and second

toothed discs

21, 13 are engaged with each other by teeth and are fixedly connected by fasteners. When the angle needs to be adjusted, the fastening piece is loosened, and the first toothed disc 21 and the second toothed disc 13 are separated; then the two toothed discs are rotated to a proper angle, the two toothed discs are pressed together again to enable the teeth to be meshed, and then the fastener is locked.

Of course, the connection between the foot support part 20 and the lower leg fixing part 10 is not limited to the fluted disc connection, and the rotation connection can also be realized by a hinge; the movable rotating shaft can be sleeved in the centers of the foot support part 20 and the shank fixing part 10, meanwhile, the side surfaces of the foot support part 20 and the shank fixing part 10 are provided with bolt slots, and then the relative positions of the two parts are fixed through bolts; all technical solutions that employ known and common rotating mechanisms and achieve substantially the same technical effects as the present invention should be considered to be within the scope of the present invention.

More specifically, bolt through holes are formed in end face center regions of the first toothed disc 21 and the second toothed disc 13, and the first toothed disc 21 and the second toothed disc 13 are fixedly connected through fixing bolts.

Preferably, referring to fig. 3, the foot rest portion 20 further includes a foot rest connecting portion 22 extending upward, the foot rest connecting portion 22 being disposed at an outer side of the foot rest portion 20; the lower end of the support portion 12 extends outward and is connected to the foot rest connecting portion 22, so that the lower leg fixing portion 10 and the foot rest portion 20 are connected. The lateral extension of the support portion 12 and the foot rest connecting portion 22 together provide a certain support effect to the lateral side of the lower leg to enhance stability. The first toothed plate 21 is fixed at a specific position on the outer side of the footrest connecting portion 22, and the second toothed plate 13 is fixed at a specific position on the inner side of the support portion 12.

Preferably, referring to fig. 1, a plurality of ribs 40 are disposed on the outer side of the foot support connecting portion 22 to enhance the force stability of the foot support connecting portion 22. The number and shape of the reinforcing ribs 40 are not particularly limited, and the amount of the acting force applied to the knee, ankle and foot orthosis by different patients is different due to individual differences of weight, age, sex and the like, so that the specific number of the reinforcing ribs 40 is determined according to actual needs.

Preferably, referring to fig. 1-2, a plurality of ribs 40 are disposed on the lateral side of the lower leg fixing portion 10 to enhance the force stability of the lower leg fixing portion 10, and the number and shape thereof are not limited in particular and are determined according to actual requirements.

Preferably, the knee, ankle and foot orthosis is made of a nylon material. In the past, the knee, ankle and foot orthosis is mostly made of carbon fiber materials, has the advantages of light weight, high strength and the like, and has the problems of high cost, difficult recovery and the like. The knee, ankle and foot orthosis is replaced by nylon materials, so that the cost of the knee, ankle and foot orthosis is reduced, and meanwhile, the knee, ankle and foot orthosis is convenient to recycle and more environment-friendly.

In order to ensure the ventilation performance of the foot rest portion 20, preferably, referring to fig. 9, a plurality of ventilation holes 23 are uniformly formed on the foot rest portion 20.

The above-mentioned embodiments of the present invention are only preferred embodiments of the present invention, and the protection scope of the present invention should not be limited thereby, and any insubstantial changes and substitutions made by those skilled in the art based on the present invention are within the protection scope of the present invention.

Claims

1. A knee, ankle and foot orthosis, comprising: a shank fixing part, a foot support part and a sole outer side support part; the shank fixing part comprises a bearing part for fixing the shank part and a supporting part connected with the bearing part; the shank fixing part is connected to the upper end of the foot support part through the supporting part; the top surface of the foot support part is matched with the bottom of the sole of a human foot in shape, and the outer side of the foot support part is provided with an arched outer foot arch part; the top surface of the plantar outer side supporting piece is in a shape suitable for being tightly matched with the outer arch part, and the bottom surface of the plantar outer side supporting piece is a horizontal plane; the outer side supporting piece of the sole is detachably connected to the lower part of the foot support part.

2. The knee ankle foot orthosis set forth in claim 1, wherein the weight bearing portion defines a recess having an edge adapted to engage a patellar ligament portion of a human body.

3. The knee ankle foot orthosis set forth in claim 1, wherein the plantar lateral support is an elastic material.

4. The knee ankle foot orthosis set forth in claim 1, wherein the lower leg securing portion and the foot rest portion are removably connected.

5. The knee ankle foot orthosis set forth in claim 1, wherein the lower leg securing portion is angularly adjustably rotatably coupled to the foot rest portion.

6. The knee, ankle and foot orthosis according to claim 5, wherein a first toothed plate is fixedly disposed at an upper end of the foot support portion, a second toothed plate is disposed at a lower end of the support portion of the lower leg fixing portion, and a plurality of teeth are circumferentially disposed on end surfaces of the first toothed plate and the second toothed plate; the first toothed disc and the second toothed disc are meshed with each other through the teeth and fixedly connected through a fastener.

7. The knee ankle foot orthosis set forth in claim 6, wherein the foot mount portion further includes a foot mount connecting portion extending upwardly, the foot mount connecting portion being disposed outboard of the foot mount portion; the lower end of the supporting part extends towards the outer side and is connected with the foot support connecting part, so that the shank fixing part is connected with the foot support part; the first fluted disc is fixedly arranged on the outer side of the foot support connecting part, and the second fluted disc is fixedly arranged on the inner side of the supporting part.

8. The knee ankle foot orthosis set forth in claim 7, wherein a plurality of ribs are provided on an outer side of the foot rest connection portion.

9. The knee ankle foot orthosis set forth in claim 1, wherein a plurality of ribs are provided on an outer side of the lower leg securing portion.

10. The knee, ankle and foot orthosis according to claim 1, wherein the knee, ankle and foot orthosis is made of nylon material.