JPH02164358A - Sacroiliac correcting device - Google Patents

Abstract

PURPOSE:To slacken muscles surrounding bone and/or joint for orthopedical therapy incl. basin by laying a patient in such an attitude that his waist (around the gap between No.4 and No.5 lumbers contacts a waist backing and that the hip is placed on a swing plate 3, and by operating a motor. CONSTITUTION:A correction device according to the present invention is composed of a motor 4 fixed inside of a frame 10, a swing plate 3 rotating round a shaft 5 fixed to the upper part of the frame 10, a rod 8 to make link connection of a shaft 6 mounted in a hole, which is bored in a disc 15 fixed to the rotary shaft of the motor 4, with a shaft 7 installed on the rear side of the swing plate 3, and a waist backing 2 mounted on the frame 10 near the swing plate 3. The mounting position of this swing plate 3 is movable fore and aft to make fine adjustment. As the motor 4 position is fixed, a joint is used which has a certain degree of freedom in the direction along respective rotary shaft at the coupling point with the rod 8. The waist backing 2 is supported by a jack 9 so as to allow vertical motion. At the time of swinging, muscles incl. basin will make contraction/expansion repeatedly.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a device for correcting a joint connecting the sacrum and ilium to a normal position.

[Background, Prior Art and Problems] The pelvis is a skeleton that makes up the lower back part of the human body, and is composed of the fifth lumbar vertebrae, the sacrum, the coccyx, the ilium, the pubic bone, and the ischium, as shown in FIG. Of these, the ilium, pubic bone, and ischium are collectively called the hip bones, and there are one pair of each, and they look like the wings of a butterfly when viewed from the front. The sacrum, coccyx, ischium, and lumbar vertebrae other than the hipbone are connected by joints and intervertebral cartilage and form part of the column.

The sacroiliac joint connects the sacrum and each hip bone, and the symphysis pubis connects the left and right hip bones. The pelvis is covered with many very strong ligaments, and the connections between each bone are very strong, yet its mobility is extremely small. The pelvis can therefore be understood as forming a solid, but bony container that can undergo some strain.

Some amount of this distortion occurs during normal walking motions, crossing legs, etc., but normally the body returns to its normal position as soon as such motions are stopped. Therefore, when standing upright, it is normal for the left and right hip bones to be approximately symmetrical with respect to the body axis; otherwise, there is a risk of associated disorders. For example, this is a situation where lower back pain is caused by nerve compression, muscle tension, and deterioration of blood circulation.

By the way, the cause of the misalignment of the column and pelvis without being restored is often unknown. For example, about 75% of cases of columnar scoliosis are said to be idiopathic and the cause is unknown. . Low back pain and scoliosis have become problems in recent years, and it is said that most of the patients have abnormal position of the pelvis.

Furthermore, if the pelvis is not in its normal position and is distorted, this may lead to abnormalities in the pillar itself, which may result in various disorders. According to the theory, people with chronic illnesses8
It is also said that distortion and other abnormalities are observed in the pillars.

Therefore, correcting the pelvis to a normal position is meaningful both for people with such disorders and for preventing them.

However, currently, if there is a significant disorder in the sacroiliac joint itself, it may be corrected through surgical or conservative treatment, but patients do not experience direct subjective symptoms such as pain in the joint area. In general, no special measures have been taken.

There are some therapies that correct the anterior position (such as judo reduction techniques), but in this case, the practitioner performs various exercises on the patient to directly correct the position. However, because it required skill, knowledge, and experience, it could not become widespread.

Additionally, in general, chiropractic treatment, including for the pelvis, requires the muscles surrounding the bones and joints to be relaxed, and in that sense, in order to do this yourself, it is best to wait until a machine that takes this into account appears. It happens.

Therefore, the emergence of a device that can maintain the pelvic position in the normal position with simple operation and without the need for special skills has been awaited.

[Means for Solving the Problems] Therefore, in view of the above points, the present inventor has finally completed the present invention device as a result of intensive research, and its feature is that the joint position between the sacrum and ilium is fixed. In order to maintain a normal state, the upper part of the lumbar vertebrae is fixed and the area below the pelvis is externally swung so that treatment can be performed with the muscles relaxed. It is a device that has a support.

Among these mechanisms, mechanisms for imparting rocking motion to the rocking plate include those that employ a four-bar mechanism between the motor and the lower surface of the rocking plate, and those that use a cam that rotates in conjunction with the rotation of the motor to rock. There are 3 types: one in which it is in constant contact with the bottom surface of the plate, and one in which hydraulic cylinders are installed on the bottom surface of the rocking plate to expand and contract.
f! ! There are types.

Belts are disposed on the rocking plate that swings by one of these mechanisms. This belt prevents the lower back from falling into an unstable state due to rocking, but when the device starts exercising, the symphysis pubis at the front of the pelvis loosens and the pelvis itself opens forward. Although there is a possibility, it may also have a function to prevent this. Of course, it is possible for the patient to tighten the dedicated band in advance to prevent the pelvic joint from loosening, and the belts disposed on the rocking plate do not have to have such a function.

A waist rest is provided adjacent to the rocking plate. This supports the vicinity of the gap between the fourth and fifth lumbar vertebrae, and has a cushioning material. Additionally, this waist rest can be moved up and down. Vertical movement in this case means that the upper end position moves up and down, and means that the height of the upper end can be changed, for example, if a jack or other expandable object is used.

[Operation] Here, the outline of the present invention will be explained based on the principle diagrams shown in FIGS. 1(a) and 1(b).

A person (M) lies on the device 1 of the present invention in a posture such that the lumbar region (near the gap between the fourth and fifth lumbar vertebrae) hits the lumbar rest 2 and the buttocks rests on the rocking plate 3. ).

Then, the rocking plate 3 starts rocking by the action of a four-bar mechanism, a cam, a hydraulic cylinder, or the like. During rocking, the muscles surrounding the pelvis repeatedly contract and expand. Furthermore, during rocking, the pelvis is pressed against the waist rest 2 side alternately on the left and right sides, and if there is any positional abnormality, it will be equalized.

[Embodiments] The present invention will be explained in more detail below based on embodiments shown in the drawings.

FIG. 2 shows one embodiment of the sacroiliac joint correction device 1 (hereinafter referred to as the device 1 of the present invention) according to the present invention.
As is clear from the figure, the device 1 of the present invention includes a motor 4 fixedly installed inside a frame 10, a rocking plate 3 rotatable around a shaft 5 fixed to the upper part of the frame 10, and a rod 8 that connects, as a link, a shaft 6 disposed in a hole cut in a disc 15 fixed to the rotating shaft of the motor 4 and a shaft 7 provided on the back surface of the swing plate 3, and a rod 8 on the frame 10. It is composed of a waist rest 2 and the like provided near the swing plate 3.

The mounting position of the swing plate 3 can be moved back and forth, allowing for fine adjustment. In this case, since the position of the motor 4 is fixed, a joint is used that allows some degree of freedom in the direction along the respective rotation axes at the connection point with the rod 8. Further, the waist rest 2 is supported by a jack 9 (a screw jack is used in the figure, but it may be of a hydraulic type or other structure) so as to be able to move up and down. This was provided because the appropriate position differs depending on the situation of the area to be corrected and individual differences, but within the range of various prototypes, this appropriate height was actually determined by lying on the back on the device 1 of the present invention. From a sleeping position, the lower backrest 2 was gradually raised to a height that was slightly lower than the height at which the patient felt pain in the lower back. Note that this height often changed to the point where the set height had to be increased within a few minutes while the device was in use, demonstrating the device's excellence in correction.

Belts 31 disposed at both ends of the swinging plate 3 are members for holding the waist by going around the waist and fixing with hook-and-loop fasteners disposed at the ends, and effectively suppressing the swinging of the waist. It is used to prevent accidents caused by the waist part slipping and coming off, but it is not essential to the present invention.

The motor 4 has a built-in speed reduction mechanism that causes the swing plate 3 to vibrate 60 to 70 times per minute, but it may be provided externally. It is best to set this frequency to about 45 to 75 times per minute, especially about 60 to 70 times per minute.If it is too small, the upper lumbar vertebrae should be fixed during rocking, but the rocking plate 3 It is undesirable because it will sway following the movement, making it impossible to expect the twisting movement of the lower back, and if it is too large, the muscles will not be able to repeat the contraction and extension movements, which will also be ineffective.

In this example, the amplitude was about 10 cm at the end of the rocking plate 3, but it may vary depending on the symptoms and individual differences.
The present invention is not particularly limited.

Although not shown, it is preferable for the swing plate 3 to maintain a horizontal state when the motor 4 is not in operation.

In this example, the waist rest 2 is fixedly attached to the device 1 of the present invention, but as shown in FIG. bad 22
It was designed to be divided into two parts. waist pad 2
As shown in the figure, the structure of the pillow 2 is that a large number of small plastic pipes 23 are filled in a cloth bag 24, and within the scope of the prototype experiment conducted by the present invention, the pillow has a higher filling degree than a normal pillow. The hard ones were the most effective and felt good when used.

The divided lumbar pad 22 can be separated from the device 1 of the present invention and used alone as a lumbar pad for correction.

That is, place this waist pad 22 on the floor or futon,
If the patient sleeps on his back with this device resting on his lower back, it will be somewhat effective without using the device.

Furthermore, when used for correcting the position of the pelvis, the pad 22
The appropriate height is about 6cn+, and about 8cn+ is appropriate for correcting the position of the cervical region ('8 vertebrae), so if these two types are prepared, both can be used with the device 1 of the present invention. In addition, when separated, both the lower back and neck can be used as a pillow for correction.

Furthermore, if the lumbar pad 22 is cylindrical, changing the height will naturally change the radius, but a smaller radius will put less pressure on the lower back than a larger radius. Since this results in a larger size, replacing it also has the secondary effect of making it easier to change the intensity of orthodontic treatment depending on individual differences.

Furthermore, the device 1 of the present invention can correct positional abnormalities not only in the sacroiliac joints but also in the cervical vertebrae (in this case, it is better to place the neck on the rocking plate 3).

In addition, the lumbar support 2 is more effective if it is brought into contact with the patient's fourth and fifth lumbar vertebrae as accurately as possible, and the rocking plate 3 is also designed to properly support the lower pelvis. Since the effect is greater, it is preferable to allow the distance between the two to be finely adjusted. In that case, the structure can be simplified if the fulcrum side position of the rocking plate 3 can be moved by a combination of screws and elongated holes. (Illustrated path) Note that the means for swinging the swing plate 3 is not limited to what has been described so far.

For example, as shown in FIG. 4, there is also a method of swinging using a cam 11. In the example shown in the figure, a roller 12 is rotatably fixed on one side of the swing plate 3 across the rotating wheel, and a spring 13 is installed on the other side so that the swing plate 3 is always in contact with the cam 11. There is.

The cam 11 rotated by the motor 4 (not shown) continues to press the rocking plate 3 by the spring 13, and can cause a rocking motion similar to the examples shown above. Another advantage is that it is easier to reduce the volume of the mechanical part compared to previous examples that utilize a four-bar mechanism.

In addition, in the illustrated example, the cam 11 is provided only on one side, but
If it is provided on both sides, the spring 13 becomes unnecessary.
In addition, the cam vibration can be transmitted as a precise rocking motion (not shown).

In addition, there is also a method of imparting a rocking motion to the rocking plate 3 using the hydraulic cylinder 14, which is schematically shown in FIG.

Of course, although not shown in this example, the hydraulic cylinder 14 is driven by oil from a hydraulic pump.

The device 1 of the present invention having such a configuration is usually installed in a medical examination room or other place so as to be sandwiched between two short beds so as to be installed near the center of the bed. Therefore, the shape and size of the device itself, the installation locations of the operating switches, etc. should be determined in consideration of this, but this is not limited to this in the present invention.

[Effects of the Invention] As explained in detail above, the sacroiliac joint correction device according to the present invention is a device for maintaining the joint position between the sacroiliac bones in a normal state, and is a device for maintaining the joint position between the sacroiliac bones in a normal state, The lumbar rest has a lumbar rest for fixing the vicinity of the gap between the lumbar vertebrae, and a rocking plate having a belt for fixing and supporting the lumbar part, adjacent to each other, and the lumbar rest has a cushioning material for supporting the lumbar vertebrae. It has and can move up and down,
In addition, the rocking plate is driven by a motor to perform rocking motion with the rotation axis in the same direction as the body axis, and this rocking motion is caused by either the four-bar mechanism, the rotation of the cam, or the expansion and contraction of the hydraulic cylinder. It is characterized by being dependent on
This is an extremely advanced invention that has various advantages as described below.

■ This device easily employs a correction method that previously could only be performed manually by people with special skills, by fixing the area around the gap between the 4th and 5th lumbar vertebrae and rocking the area below the pelvis. can do.

■ Easy to operate.

■ Persons who perform corrective or preventive exercises using the device only need to lie down on the device, which allows their muscles to remain relaxed, making this an ideal situation.

[Brief explanation of the drawing]

Figure 1 (al (bl) is a schematic diagram for showing the principle of the present invention, the figure (δ) is a front view, the figure ('b) is a side view, and Figure 2 is a sacroiliac diagram according to the present invention. FIG. 3 is a perspective view showing one embodiment of the joint correction device, FIG. 3 is a perspective view showing another embodiment regarding the waist support portion, and FIGS. The schematic diagram and Figure 6 are front views showing the normal skeleton near the pelvis. ...Sacroiliac joint correction device...
・・・・・・Waist rest・・・・・・・・・Vibration plate・・・・・・・・・Motor・・・・・・・・・Rod・・・・・・Cam 4・・・・・・Hydraulic cylinder

Claims (3)

[Claims] 1. This is a device for maintaining the joint position between the sacrum and ilium in a normal state, and includes a lumbar support that fixes the area around the gap between the fourth and fifth lumbar vertebrae, and a belt that fixes and supports the lumbar region. The lumbar support has a cushioning material that supports the lumbar vertebrae and is movable up and down, and the lumbar support is moved by a motor in the same direction as the body axis. The oscillation plate and the motor have a oscillation axis provided at an appropriate location other than the oscillation axis on the lower surface of the oscillation plate; It is characterized in that it adopts a generally four-bar mechanism in which rotating shafts that are provided at appropriate locations other than the rotating shaft of the motor and that rotate together with the motor are swingably connected to each other by a rod. Sacroiliac joint correction device. 2. This is a device for maintaining the joint position between the sacrum and ilium in a normal state, and includes a lumbar rest for fixing the vicinity of the gap between the fourth and fifth lumbar vertebrae, and a belt for fixing and supporting the lumbar region. The lumbar support has a cushioning material that supports the lumbar vertebrae and is movable up and down, and the lumbar support is moved by a motor in the same direction as the body axis. The rocking plate is in contact with the cam rotated by the motor at a position below the rocking plate and away from the rotating shaft. A sacroiliac joint correction device characterized by the following. 3. This is a device for maintaining the joint position between the sacrum and ilium in a normal state, and includes a lumbar support that fixes the area around the gap between the fourth and fifth lumbar vertebrae, and a belt that fixes and supports the lumbar region. The lumbar rest has a cushioning material that supports the lumbar vertebrae and is movable up and down, and the rocking plate rotates in the same direction as the body axis. The rocking plate has a hydraulic cylinder rotatably supported at one end at a position remote from the rotating shaft. Characteristic sacroiliac joint correction device.