KR101682450B1

KR101682450B1 - Ankle joint orthosis

Info

Publication number: KR101682450B1
Application number: KR1020150099499A
Authority: KR
Inventors: 김기홍; 황보숙; 권중원
Original assignee: (주)세아메카닉스; 황보숙
Priority date: 2015-07-14
Filing date: 2015-07-14
Publication date: 2016-12-05

Abstract

The present invention relates to an ankle joint assisting device comprising: a wearing unit including a fixing rod wrapping the rear side of the calf, a support wrapping the sole and the heel, and a Velcro part selectively wrapping the calf and the back of a foot on the fixing rod and the support, wherein he fixing rod and the support are dividedly formed to a position adjacent to an ankle bone; a joint unit including top and bottom joint plates rotated in a direction corresponding to the ankle joint in a position where the fixing rod and the support are divided, and a mounting plate for connecting the fixing rod and the support to be rotated by being respectively extended from the top and bottom joint plates; and a torsion spring installed between the top and the bottom joint plates, and promoting correct walking by applying unidirectional elasticity to the support from the fixing rod. According to the present invention, a footdrop preventing function, a push lacking preventing function, and a tensile strength adjusting function are ensured, and a burden of costs that a patient feels can be minimized.

Description

Ankle joint orthosis

The present invention relates to a ciliary augmentor for correcting an abnormal walking of a paralyzed patient, and is capable of preventing a foot drop phenomenon or a push off phenomenon that is not sufficient for a swinging motion, The present invention relates to an ankle joint auxiliary apparatus for exercising an ankle joint.

In paralysis patients due to cerebrovascular disease, the muscular activity around the ankle joint is weakened due to the paralysis of the nervous system, so that the gait of the ankle is unstable and the inside / outside of the ankle is not voluntary. In other words, due to the stiffness paralysis of the plantar flexor, the feet move to the foot or toe without reaching the ground at the initial stance.

Foot drop is a paralysis of the nervous system, which means that the muscles around the ankle are not able to lift their feet due to their small or no activity. The cause of foot injuries is that the activity of the anterior tibialis muscle around the ankle due to paralysis of the central and peripheral nervous system is not achieved normally, especially in patients with spastic paralysis. In order to compensate for this, the paralysis patient has a circumduction gait, which leads to an ineffective gait such as a slow walking speed and a large increase in energy consumption. Ankle-foot orthosis has been widely used as a physical aid to improve the walking of these patients.

Conventionally, since the foot and the calf are fixed at a predetermined angle, there is a disadvantage that the weight support of the low flexor muscle generated in the normal gait, the acceleration of the ramp and the shock absorption at the initial grounding are not performed. In order to solve this problem, Korean Patent Laid-Open Publication No. 2001-0067956 entitled "Ergonomic Ankle Lower Limb Assistor" and Korean Patent Laid-Open Publication No. 10-2011-0083782 "Walking Assisted Cylindrical Ankle Lower Limb Assistor" Patent Publication No. 10-2014-0103429 "Ankle joint brace" has been proposed.

These orthoses can be made of materials with elasticity and ergonomic shape, which enables joint movement to induce normal walking. However, the range of motion and elasticity of the joint movements should be different depending on the patient's age and walking condition, but it is confined to the material to be applied. Therefore, it prevents the movement of plantar flexion and dorsiflexion during walking, It was not enough to improve.

Recently, in order to compensate for the aforementioned problems, Korean Patent Laid-Open No. 10-2008-0075251, entitled " Active Ankle Lower Limb Helmet for Paralysis and Pulling of Paralysis Patients "has been proposed. These orthoses are actively controlling the ankle joints of paralyzed patients by using a series elastic actuator (Actuator Series), and by detecting the accurate gait cycle by using the resistance sensor and rotary potentiometer to assist the normal walking of the paralyzed patient, The angle of the ankle joint was controlled by varying the length of the driving part according to the walking cycle, and the ankle joint was controlled using pneumatic artificial muscles.

However, as the resistance sensor or the potentiometer is applied, there is a problem that the activity of going out by the battery is limited, and the beauty feeling is lowered due to the volume increase by the actuator. First of all, there is a problem that the overall cost is increased due to expensive precision equipment, and the burden on the patient is increased.

Korean Patent Laid-Open Publication No. 2001-0067956 "Ergonomic Ankle Lower Orthosis" Korean Patent Laid-Open Publication No. 10-2011-0083782 "Walking Assist Type Cylindrical Carbon Lower Limb Assistor" Korean Patent Publication No. 10-2014-0103429 entitled "Ankle Orthosis" Korean Patent Laid-Open Publication No. 10-2008-0075251 entitled " Active Ankle Lower Orthosis Assist Device for Prevention of Foot Drop and Foot Drop in Patients with Paralysis &

SUMMARY OF THE INVENTION Accordingly, the present invention has been made to solve the above-mentioned conventional problems, and it is an object of the present invention to provide an apparatus and a method for adjusting a tension according to an age and a joint state of a patient, And to provide an ankle joint brace that is able to secure price competitiveness by adopting a thin and simple structure.

In order to achieve the above object, the present invention provides an ankle joint auxiliary device comprising: a support for supporting the back of a calf; a support for supporting the soles of the foot and the heel to be adjacent to the bone; and a calf and a foot A wrist portion having a Velcro; An upper and a lower tube section rotating in a direction corresponding to an ankle joint at a position where the fixing table and the support table are separated from each other and a curved surface of the fixing table and the supporting table extending from the upper and lower tube plates, And a mounting plate on which one or more screw holes are formed so as to be brought into contact with one surface of the lower plate, the lower plate being integrally formed with the upper plate, A guide groove formed in the upper tube section for interlocking with a mounting plate of the upper tube section to limit the rotation angle of the support section, and the upper tube section has a joint part for forming a fastening hole for guiding fixing by the lower tube section at the center; And a torsion spring embedded between the upper and lower tube sections for applying a one-directional elastic force to the support table from the fixing table for correct walking, wherein the mounting plate has a longitudinal shape or a length Wherein the rotation groove is formed with a receiving groove having a stepped portion in which a torsion spring is embedded at the center and a fastening protrusion portion which is interlocked with the fastening hole at the center of the receiving groove is formed, And the upper tube section is formed with a plurality of insertion holes through which the both ends of the torsion spring are inserted so that the elastic direction can be arbitrarily set. The guide groove is formed by connecting the mounting plate of the upper tube section to the fixing table With an angle that limits the rotation range of the lower tube section to 20 to 60 degrees with respect to the exposed mounting plate, .

delete

It should be understood, however, that the terminology or words of the present specification and claims should not be construed in an ordinary sense or in a dictionary, and that the inventors shall not be limited to the concept of a term It should be construed in accordance with the meaning and concept consistent with the technical idea of the present invention based on the principle that it can be properly defined. Therefore, the embodiments described in the present specification and the configurations shown in the drawings are merely the most preferred embodiments of the present invention, and not all of the technical ideas of the present invention are described. Therefore, It is to be understood that equivalents and modifications are possible.

As described above, the present invention provides the following effects.

First, it is possible to minimize the burden on the patient by reducing the cost by making the overall structure relatively light and simple.

Second, it adopts the joint structure which can rotate the support from the fixed base, and it is possible to walk naturally without interfering with the excavation and the excavation.

Third, the torsion spring provides a one - way elastic force to the support from the fixed base, thereby preventing the foot - lift phenomenon or the shortage of propulsion, thereby providing the correct walking.

Fourth, it is easy and easy to replace the torsion spring, so various kinds of side effects can be prevented by customized tension suitable for patient's age and joint condition.

1 and 2 are photographs showing the whole of the orthosis according to the present invention.
Fig. 3 is a front view showing the main part of the orthosis according to the present invention; Fig.
FIG. 4 is an exploded view showing a main part of the orthosis according to the present invention. FIG.
5 is a configuration diagram showing the operation of the orthosis according to the present invention;
FIG. 6 and FIG. 7 are structural diagrams showing an orthosis according to a modification of the present invention; FIG.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

The present invention relates to an orthosis for correcting an abnormal walking of a paralyzed patient, and is an ankle joint orthosis having a wear part (10), a joint part (20), and a torsion spring (30) The main feature of the present invention is to minimize the cost burden of the patient while having a foot-stopping prevention function, a shortage prevention function and a tension control function.

The wearer 10 according to the present invention is provided with a fixing table 11 and a support table 12 to allow the wearer 10 to wear on an unsteady leg when walking as shown in FIGS. The fixing base 11 has a U-shaped cross-section that surrounds the back of the wearer's calf, and the support base 12 has a shoe shape that wraps around the sole and the heel. The fixing table 11 and the support table 12 are formed to be separated from each other at positions adjacent to the radiating bone. The divided fixing table 11 and the supporting table 12 are symmetrically connected with the joints 20 described later so that the table 12 rotates at a predetermined angle from the fixing table 11. Therefore, it does not interfere with the ankle squeezing and the excavation exercise at the time of walking, thus inducing natural walking. Here, a velcro 15 is provided on the fixing table 11 and the supporting table 12 to selectively enclose the calf and the foot. Velcro (15) encourages stable wear regardless of calf or foot size.

The joint part 20 according to the present invention rotatably connects the divided fixing table 11 and the support table 12 at a predetermined angle as shown in FIG. 1 and FIG. 2. The upper and lower tubesheet 21, (22) and a mounting plate (25). The upper and lower pipe sections 21 and 22 are engaged with each other in a superposed form so as to serve as a bearing between the fixing table 11 and the support table 12. The mounting plate 25 is supported by the tube plates 21 and 22 So as to be guided to the fixing table 11 and the supporting table 12.

4, the lower tube section 21 has a rotation groove 21a for receiving the upper tube section 22 in a state of being engaged with the outer circumference of the upper section section 22, A guide groove 21b is formed which interlocks with the guide groove 25 to limit the rotation angle of the support table 12. [ The upper pipe section (22) is formed with a fastening hole (22a) for guiding the upper pipe section (22) to be fixed by the lower pipe section (21) at the center.

At the center of the rotation groove 21a is formed a receiving groove 21c in which a torsion spring 30 to be described later is embedded and a fastening protrusion 21d interlocking with the fastening hole 22a at the center of the receiving groove 21c. . Here, a screw thread is formed at the center of the fastening protrusion 21d to guide fastening by a bolt. That is, after the torsion spring 30 is housed in the receiving groove 21c of the lower tube section 21, the upper tube section 22 is received by the rotation groove 21a, and the fastening hole 22a and the fastening protrusion section 21d ), The assembly is completed. Therefore, it is possible to easily and easily replace the torsion spring 30, and it is possible to prevent various side effects by a customized tension suitable for the patient's age and joint condition.

The receiving groove 21c and the upper tube section 22 are formed with insertion holes 21e and 22b, respectively, through which both ends of the torsion spring 30 are inserted. It is preferable that the insertion holes 21e and 22b are formed at a position where elasticity of the torsion spring 30 is generated as soon as the upper tube end plate 22 starts rotating. It is preferable that a plurality of the torsion springs 30 are arranged so that the elastic direction to be added by the torsion springs 30 can be arbitrarily set.

The guide groove 21b of the lower tube section 21 has a function of exposing the mounting plate 25 of the upper tube section 22 upward from the rotary groove 21a as shown in FIG. 5 so as to be connected to the stationary table 11, Limit the range of rotation to prevent over-excitation and over-excitation of the ankle during walking. It is preferable that the guide groove 21b is opened at an angle that limits the rotation range of the lower tube section 21 to 20 to 60 degrees with respect to the exposed mounting plate 25. [

The mounting plate 25 is bent from the upper and lower pipe sections 21 and 22 to coincide with the curved surfaces of the fixing table 11 and the supporting table 12 and has one or more screw holes 25a do. Here, although the mounting plate 25 is shown integrally formed with the tube sections 21 and 22, the mounting plate 25 may be formed to be divided in some cases. At this time, the mounting plate 25 can be selectively formed as a vertical type having a length longer than the width as shown in FIG. 6, or a horizontal type having a width larger than the length.

That is, the wearer 10 can be distinguished for adults and children depending on the size. Since a relatively large size adult can be mounted at a position that does not disturb the wearing feeling as shown in FIGS. 1 and 2, the vertical type is suitable as shown in FIGS. 3 to 5, and the lateral position is suitable as shown in FIG. Do. The mounting plate 25 may be composed of the upper and lower pipe sections 21 and 22 in a horizontal or vertical form or may be separately constituted by the upper and lower pipe sections 21 and 22 have.

In addition, the torsion spring 30 according to the present invention improves walking by adding an elastic force to the support base 12 from the fixed base 11 in one direction. As shown in FIG. 4, the torsion spring 30 has a circular profile having a predetermined cross-sectional diameter along a helix radius having a predetermined pitch. Both ends of the torsion spring 30 are bent in parallel in the axial direction centering on the radius. That is, one end of the torsion spring 30 is inserted into the insertion hole 21e of the lower tube end plate 21 and the other end is inserted into the insertion hole 22b of the upper tube end plate 22, It adds a one-way elasticity.

Meanwhile, the orthosis according to the present invention is divided into two groups according to the elastic direction to which the torsion spring 30 is attached. As shown in FIG. 1, the footrest is provided with an elastic force for maintaining the patient's feet in a state of being raised at any time, and an elastic force for depriving the footrest is applied to the patient's feet at all times. Of course, depending on the case, it is also possible to add an elastic force to the intermediate state between the excavation and the excavation. This elastic direction can be set by varying the position of the torsion spring 30 inserted into the insertion holes 21e and 22b.

It will be apparent to those skilled in the art that various modifications and variations can be made in the present invention without departing from the spirit and scope of the invention as defined by the appended claims. It is therefore intended that such variations and modifications fall within the scope of the appended claims.

10: worn portion 11: fixed portion
12: Support 15: Velcro
20: joint 21: lower tube
21a: rotation groove 21b: guide groove
21c: receiving groove 21d: fastening projection
21e, 22b: insertion hole 22: upper tube outlet
22a: fastening hole 25: mounting plate
25a: screw hole 30: torsion spring

Claims

For ankle joint ankle:
A wearer including a support for wrapping the back of the calf, a support for supporting the soles of the foot and the heel adjacent to the bone, and a Velcro for selectively wrapping the calf and the foot on the support and the support;
An upper and a lower tube section rotating in a direction corresponding to an ankle joint at a position where the fixing table and the support table are separated from each other and a curved surface of the fixing table and the supporting table extending from the upper and lower tube plates, And a mounting plate on which one or more screw holes are formed so as to be brought into contact with one surface of the lower plate, the lower plate being integrally formed with the upper plate, A guide groove formed in the upper tube section for interlocking with a mounting plate of the upper tube section to limit the rotation angle of the support section, and the upper tube section has a joint part for forming a fastening hole for guiding fixing by the lower tube section at the center; And
And a torsion spring embedded between the upper and lower tube sections for applying a one-way elastic force to the support table from the fixing table for correct walking,
Wherein the mounting plate is selectively formed of a longitudinal shape having a longer length than the width or a lateral shape having a width larger than the length, the accommodating groove having a stepped portion with a torsion spring embedded in the center, A plurality of insertion holes are formed in the receiving groove and the upper tube so that the both ends of the torsion spring are inserted into the insertion groove, Wherein the groove is opened upwardly from the rotary groove so that the mounting plate of the upper tube section is connected to the fixing table and the rotation range of the lower tube section is limited to 20 to 60 degrees with respect to the exposed mounting plate. Joint aids.

delete