JP2860056B2 - Lumbar orthosis - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a lumbar orthosis.

[0002]

2. Description of the Related Art The vertebral column is composed of a total of 24 vertebrae, namely, the top seven cervical vertebrae, the twelve thoracic vertebrae and the five lumbar vertebrae, the sacrum, and the coccyx. Due to scientific demands, the lumbar spine usually curves (ventral curve), the thoracic vertebra once curves (dorsal curve), and the cervical vertebrae curves again.
As shown in FIG. 8, among the lumbar vertebrae, the fifth lumbar vertebra 100 having a weight above the waist (approximately 60% of the total body weight) is a normal person in an upright position at an angle of about 30 ° with respect to the horizontal plane. The fifth lumbar spine 10
The sacrum 101 receiving 0 also has an angle between a line drawn along the upper edge of the sacrum 101 and the horizontal plane, the so-called lumbar sacral angle α of about 30.
° position is maintained.

However, when the abdominal muscles become weaker, for example, as they age, the balance with the back muscles is lost, and the lumbar spine curves more abdominally, that is, one of the causes of low back pain (70 to 80 of low back pain). It is said to be the cause of the lumbar lordosis. It is said that most of the low back pain caused by the lumbar lordosis occurs between the fifth lumbar vertebra 100 and the sacrum 101.

[0004] That is, in a normal state, a load of a weight above the fifth lumbar vertebra 100 (about 60% of the total weight) is applied to the disc between the fifth lumbar vertebra 100 and the sacrum 101,
Since the lumbosacral angle α is 30 °, a shearing force of の of the load acts on the intervertebral disc in a direction along the upper edge of the sacrum 101, but the ligaments and muscles can sufficiently oppose this shearing force. I have. However, as described above, when the lumbar lordosis becomes large, the lumbar sacral angle α is also greater than 30 °, so the shearing force is also greater than 荷重 of the load, and the ligaments and muscles cannot withstand this shearing force, 5th lumbar spine 100 and sacrum 10
Since the angle from the position 1 is largely shifted, a large load (approximately 4 to 5 times the normal load) is applied locally, and the pressure in the intervertebral disc is increased, thereby causing problems such as back pain.

Therefore, conventionally, in treating such lumbar lordosis, a traction type lumbar correction device 200 as shown in FIG. 9 has been generally used. That is, in the lumbar spine correction device 200, the upper body of the patient 201 is fixed to the table 202, and a belt (not shown) is wound around the waist, and the traction cord 203 extending from the belt is adjusted according to the weight of the patient 201. By pulling the pelvis 204 in the direction of the arrow, the pelvis 204 is twisted in the direction of the arrow to reduce the lumbosacral angle α and correct the lordosis of the lumbar spine 205.

[0006]

However, since the above-mentioned lumbar correction device 200 also requires a drive device for traction, the device is complicated and costly, and it is quite difficult to install it in a general household. It is very cumbersome, because the wrapper is wound and another person must turn the switch on and off. In view of such circumstances, an object of the present invention is to provide a lumbar rectifying device that has a simple structure, is effective at home and the like, and can correct lumbar lordosis even by a single patient. .

[0007]

In order to achieve such an object, the inventor of the present invention arranges a base 300 for lifting the sacral portion upward under the buttocks 301 as shown in FIG. He thought that the sacrum could be easily biased in the direction of decreasing lumbosacral angle to correct the lumbar lordosis. However, as shown in FIG.
1, the weight applied to the lower part of the sacrum is the weight of the lower leg from the pelvis (less than 1/3 of the total weight).
It is not possible to apply great power. That is, since the weight above the pelvis is supported on the table 300, it does not cover the sacrum at all.

The inventor of the present invention considered that the lumbar spine could be corrected more efficiently by applying the total weight to the sacrum, and as a result of further studies, the present invention was completed. That is, the lumbar spine correction tool according to the present invention has a back support member whose back support surface is held at an inclination angle of 40 to 60 ° with respect to a horizontal plane, and a hip support surface with 140 to 1 with respect to a horizontal plane.
A buttocks receiving member held at an inclination angle of 55 °, and when the buttocks are received on the buttocks receiving surface, an elastic pressing member that abuts against the sacrum and urges the sacrum in a direction in which the lumbar sacral angle decreases. The buttock receiving surface is provided at a predetermined position.

In the above structure, the material of the elastic pressing member is not particularly limited, and examples thereof include foamed resins such as foamed polyethylene, foamed polyurethane and foamed styrene, natural rubber, and synthetic rubber. In addition, the elastic pressing member has a thickness of 100 mm when an average load of 2.0 kg to 2.6 kg per 1 cm ² is applied at 20 ° C., although it varies depending on the degree of the lumbar lordosis, the weight of the patient, and the like. Those having an elasticity of about 75 mm are preferable.

[0010] The buttocks receiving surface is not particularly limited, but it is preferable that the portion that directly receives the buttocks is formed in a concave shape along the shape of the buttocks so that the buttocks do not shift.
The angle of inclination of the back surface is not particularly limited as long as it is in the range of 40 to 60 °, but it is particularly preferable that the angle is usually 45 to 50 °, and that of a light weight person is around 55 °. The angle of inclination of the buttocks receiving surface is not particularly limited as long as it is in the range of 140 to 155 °, but it is particularly preferable to be around 145 °.

[0011]

According to the above construction, the buttocks are received by the buttocks receiving portion so that the sacrum hits the elastic pressing member, and the back is received by the back receiving portion. That is, the buttocks are received by the buttocks receiving portion, and the pressing member is brought into contact with the sacrum, so that the weight of the foot portion is applied above the sacral portion. Is biased in a direction to decrease.

At the same time, since the back is received by the back support and is inclined at an angle of 40 to 55 ° with respect to the horizontal plane, the weight above the sacrum is applied in the direction of pushing down the fifth lumbar vertebra.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to the drawings showing the embodiments. FIG. 1 shows one embodiment of a lumbar spine corrector according to the present invention. As shown in the figure, this lumbar correction tool (hereinafter, referred to as “correction tool” only) 1
Has a table 2, a back receiving member 3, and a buttock receiving member 4. The table 2 is provided on a frame, and includes a housing frame 21 of the back support member 3 and a support frame 22 of the buttocks support member 4.

As shown in FIG. 2, the housing frame portion 21 has one end of the back support member 3 rotatably supported at the end on the support frame portion 22 side, and is provided on the opposite side of the support frame portion 22. A support 23 of the back support member 3 for holding the back support member 3 at a predetermined angle with respect to a horizontal plane is pivotally supported at an end. Then, as shown in FIG. 2, when the back support member 3 and the support 23 are folded down so as to be parallel to the table 2, the back support member 3 and the support 23 are completely housed in the housing frame portion 21, and the support 23 is attached to the back support member 3.
It is designed to enter underneath.

As shown in FIG. 3, the back member 3 has hooks 31, 31, 31 formed on the back surface thereof.
By rotating and raising the back support member 3 and the support column 23, respectively, and locking a desired hook 31 at the upper end of the support column 23, 45 °, 50 °,
It can be held at a three-step inclination of 55 °.
On the other hand, as shown in FIG. 4 and FIG.
A base plate 24 and a stopper 25 are provided.

The base plate 24 is inserted into two long holes 22a, 22a provided on both sides of the support frame 22.
4 is loosely fitted in the front and rear direction of the support frame 22 by loosely fitting the bolt 24a extending from the side surface of the support frame 4, and is supported by tightening the nut 24b screwed to the tip of the bolt 24a. The frame 22 can be fixed at a desired position. The stopper 25 is rotatably provided on the base plate 24 via a hinge.
As shown in FIG. 4, when it is raised, it is perpendicular to the base plate 24, and as shown in FIG. 5, it is completely accommodated in the support frame 22 when it is folded down.

As shown in FIGS. 1 and 3, the buttocks receiving member 4 has a width that fits into the support frame portion 22.
As shown in FIG. 2, a base plate mounting portion 41, a stopper contact surface 42, and a buttocks receiving portion 43 are provided. The base plate mounting portion 41 and the stopper contact surface 42 are orthogonal to each other, and the buttocks receiving portion 43
Are inclined at 145 ° with respect to the base plate mounting portion 41. The buttocks receiving portion 43 is provided with a concave portion 43a into which the buttocks are fitted at the center thereof, and an elastic pressing member 44 is integrally provided in the concave portion 43a.

The elastic pressing member 44 is detachably attached to the wall surface of the concave portion 43a via a screw 45, and can be replaced as needed. Further, as shown in FIG. 3, the back support member 3 is provided with a leg holding belt 8 for holding the leg of the patient 7 in a folded state on the abdominal side.

The leg holding belt 8 has two rails 81 (only one side is shown in the figure) parallel to the longitudinal direction of the back support member 3 and a belt body 82. Both ends of the belt body 82 are fixed to the rail 81, respectively.
It is slidable along the rail 81 in the longitudinal direction of the back support member 3, and is slidable in front of the patient 7 via a buckle 83.
In addition to being detachable, the length can be adjusted by expanding and contracting, though not shown. When the leg holding belt 8 is not used, the belt main body 82 can be turned to the rear side of the back support member 3 so that the back support member 8 can be moved.
And can be accommodated inside the table 2.

The orthosis 1 is configured as described above, and can correct a lumbar spine as follows. As shown in FIG. 3, the table 2 is placed on a placement surface such as a horizontal floor, and the back support member 3 and the support 23 are raised.
The hook 31 of the back support member 3 is locked at the desired locking position of the back support member 3, and the back support surface 3a of the back support member 3 is set at 45 degrees with respect to the horizontal plane.
It is held in a state inclined at an angle of 50 °, 50 ° or 55 °. The stopper 25 is raised, and the buttocks receiving member 4 is set on the support frame 22.

The nut 24b of the base plate 24 is loosened, and the base plate 24 is slid along the long hole 22a, adjusted to a position corresponding to the body shape of the patient 7, and tightened and fixed again with the nut 24b. That is, the base plate 24 is slid back and forth so that the elastic pressing member 44 abuts against the sacrum. The buttocks receiving member 4 is positioned by placing the base plate mounting portion 41 on the base plate 24 and bringing the stopper contact surface 42 into contact with the stopper 25.

As shown in FIG. 3, the body of the patient 7 is corrected so that the back 7 a is in close contact with the back receiving surface 3 a of the back receiving member 3 and the elastic pressing member 44 of the buttocks receiving member 4 is in contact with the sacral portion. It is supported by the tool 1. After adjusting the position and length of the belt main body 82 of the leg holding belt 8, as shown in FIG. 3, the leg is bent and the buckle 83 is closed to hold the leg in the bent state. The position adjustment and the length adjustment of the belt main body 82 may be performed before the step.

That is, according to the orthosis 1, the lower part of the body below the sacrum is above the sacrum, as shown in FIG. 3, and therefore, as shown in FIG. The weight of the part below the sacrum 71 is applied to the member 44,
The sacrum 71 is pushed upward from below by the elastic pressing member 44 (in the direction of arrow A in FIG. 7). Moreover, since the upper part of the sacrum 71 of the body is above the sacrum 71 and the weight of the upper part of the sacrum 71 is applied to the lumbar vertebra 72, a force is applied in the direction in which the lumbar vertebra 72 extends (the direction of arrow B in FIG. 7). . Therefore, using the whole body weight efficiently
The lumbar spine 72 can be corrected.

Further, since the elastic pressing member 44 is detachable by the screw 45, the elastic pressing member 44 can be changed according to symptoms, age, etc.
The elastic pressing member 44 having a different elastic modulus or size can be freely replaced. Moreover, when not in use, FIG.
As shown in (2), the support 23, the back support member 3, and the stopper 25 are housed in the base 2 to be in a flat state.
It is bulky and easy to store, and can be easily handled not only at medical facilities such as hospitals, but also at home. FIG.
As shown in (1), the legs can be held in a folded state without any hand by the leg holding belt 8, so that a book or the like can be read during correction.

The correction tool according to the present invention is not limited to the above embodiment. For example, in the above-described embodiment, the inclination of the back support member 3 can be changed in three stages, but may be four or more stages or one stage.
Also, a combination of gears or the like may be used so that the inclination can be changed steplessly by operating the steering wheel. In the above-described embodiment, the buttocks receiving member 4 is separate from the table 2,
As in the case of the back receiving member 3, it may be pivotally supported on the base 2 in the form of a plate having a concave portion. Further, instead of the concave portion, a concave groove along the shape of the buttocks in the width direction may be formed. In addition, instead of forming a concave portion or a concave groove, a portion hitting the buttocks (excluding a portion of the elastic pressing member hitting the sacrum)
May be formed of a soft material having cushioning properties.

Further, in the above embodiment, the back support member 3
Although the leg holding belt 8 is provided integrally, the belt may be a separate body. Also, the belt body 82
Instead of the hackle 83, a zipper may be used as a structure that can be freely opened with a planar fastener or the like.

[0027]

As described above, the orthosis according to the present invention has a simple structure, can be obtained at low cost, and has no troublesome work such as setting a bandage. It can be used alone by a patient without care, and can be easily handled at home. In addition, the entire weight of the user can be used for correction, which is very efficient.

The orthodontic device according to the present invention can be used not only for treatment of lumbar lordosis, but also for herniated disc (expansion of intervertebral foramen), decompression of facet joint, sciatic nerve passage (removal of nerve root), and muscle tone. (Efficient in extension of all tissues such as lumbar muscles, ligaments, and intervertebral discs, urination and defecation.

[Brief description of the drawings]

FIG. 1 is a perspective view showing one embodiment of a straightening tool according to the present invention.

FIG. 2 is a side view of the correction tool of FIG. 1 in a folded state.

FIG. 3 is a partially cutaway sectional view showing a use state of the correction tool of FIG. 1;

FIG. 4 is a perspective view of a state where a stopper of the correction tool of FIG. 1 is set up.

FIG. 5 is a perspective view of a state where a stopper of the correction tool of FIG. 1 is housed.

FIG. 6 is a perspective view of the buttocks receiving member of FIG. 1;

FIG. 7 is an explanatory view illustrating how a load is applied to the lumbar spine and the sacrum during correction by the correction tool of FIG. 1;

FIG. 8 is a skeleton diagram of a lumbar spine and a sacrum.

FIG. 9 is an explanatory view illustrating a conventional correction tool.

FIG. 10 is an explanatory diagram for explaining how a load is applied to the lumbar spine and the sacrum at the time of correction when the inventor uses the previously considered correction tool.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Correction tool 3 Back support member 4 Butt receiving member 3a Back receiving surface 43 Butt receiving surface 44 Elastic pressing member

Claims (1)

(57) [Claims] 1. A back support member having a back support surface inclined at an angle of 40 to 60 ° with respect to a horizontal plane, and a buttocks support having a hip support surface maintained at an inclination angle of 140 to 155 with respect to a horizontal plane. When the buttocks are received on the buttocks receiving surface, an elastic pressing member that abuts on the sacrum and urges the sacrum in a direction to reduce the lumbosacral angle is provided at a predetermined position on the buttocks receiving surface. Lumbar orthosis that is.