JP5552844B2 - Orthosis - Google Patents

Description

  The present invention relates to a device for improving the symptoms of spastic torticollis.

  In general, a disease called spastic torticollis is known. Spastic torticollis is a type of local dystonia that causes involuntary movements such as tilting, twisting, and shaking the neck in either the left, right, up, or down directions. Spastic torticollis is also called cervical dystonia. There are about 1 to 30,000 patients with spastic torticollis in Japan, but the cause has not been elucidated.

  Physiotherapy, drug treatment, and surgical treatment are used to treat spastic torticollis. Physical therapy is relaxed biofeedback through autonomous training. The drug treatment is an injection of Clostridium botulinum toxin. Surgical treatment includes deep brain stimulation, selective peripheral nerve blockade, and accessory nerve decompression.

  On the other hand, if you put the wire hanger sideways with the face facing forward and put it on your head so that the side of the head is sandwiched, the head will turn and turn sideways regardless of your will Reflex motion is known. This phenomenon has been reported as “hanger reflection”. For the hanger reflex, the pressing position of the head is important, and a head rotation device that controls the rotation of the head by stimulating the optimal compression point of the head without using a hanger is also known (non- Patent Documents 1 to 3).

Matsue, Sato (not yet), Hashimoto, Enomoto, “Study on reflex movement by temporal compression”, 12th Annual Meeting of the Virtual Reality Society of Japan, Virtual Reality Society of Japan, September 19, 2007, p. 295-296 Sato (not yet), Matsue, Tokuma, Hashimoto, Enomoto, “Study on head rotation device using hanger reflection”, Entertainment Computing 2008, Entertainment Computing, October 29, 2008, p. 139-142 M. Sato, R. Matsue, Y. Hashimoto, H. Kajimoto, "Development of a Head Rotation Interface by Using Hanger Reflex", 18th IEEE International Symposium on robot and human interactive communication, IEEE International Symposium on robot and human interactive communication, September 27 , 2009, pp.534-538

  As described above, physical therapy or the like is performed as a treatment for spastic torticollis, but each has a high risk for its effect and has problems with side effects. Spastic torticollis may also cause stiff shoulders, and there is a desire to suppress head rotation due to spastic torticollis.

  Accordingly, an object of the present invention is to provide a brace that suppresses the rotational movement of the head due to the spastic torticollis.

In order to solve the above-mentioned problems, a brace according to a feature of the present invention relates to a therapeutic instrument for spastic torticollis. That brace according to the aspect of the present invention maintains the conforming substantially elliptical shape in the side of the head of the head, the short axis of the substantially elliptical, and the outer layer portion corresponding to the width of the head, of the outer portion And a buffer part that cushions a predetermined part of the head, and when it is mounted shifted from a state that fits the side of the head, it compresses at least two parts with a stronger force than before shifting. A compression part is formed, and two locations are the front side of the temporal region and the rear side of the temporal region, the upper part of the frontal region and the lower part of the occipital region, the upper part of the temporal region and the lower side of the temporal region, or the left side of the frontal region Upper and lower right of the back of the head .

Here, the outer layer portion may be elastic enough to be mounted on the head, and the compression portion may be compressed by the elasticity of the outer layer portion. In addition, the buffer portion may have a frictional force that can be fixed to the head when the compression portion is formed.

  The buffer part may be provided on the inner peripheral surface of the outer layer part, or may be provided on a part of the inner periphery of the outer layer part.

The buffer portion may be made of a urethane resin.

  ADVANTAGE OF THE INVENTION According to this invention, the brace which suppresses the rotational movement of the head by a spastic torticollis can be provided.

FIG. 1 is an overall view of a brace according to a first embodiment of the present invention. FIG. 2 is an enlarged view of a part of the appliance according to the first embodiment of the present invention. FIG. 3 is a cross-sectional view of the appliance according to the first embodiment of the present invention. FIG. 4 is a diagram for explaining a state in which the orthosis according to the first embodiment of the present invention is mounted on the head. FIG. 5 is a diagram for explaining a compression portion and a clearance portion that are generated by mounting the appliance according to the first embodiment of the present invention. FIG. 6 is a diagram for explaining the production of the brace according to the first embodiment of the present invention. FIG. 7 is a diagram for explaining left and right turning patterns by the appliance according to the first embodiment of the present invention. FIG. 8 is a diagram for explaining a side-bending turning pattern by the appliance according to the first embodiment of the present invention. FIG. 9 is a diagram for explaining a backward turning pattern by the appliance according to the first embodiment of the present invention. FIG. 10 is a diagram for explaining a turning pattern in which lateral bending and backward bending are combined by the appliance according to the first embodiment of the present invention. FIG. 11 is a cross-sectional view of a brace according to the second embodiment of the present invention. FIG. 12 is an overall view of a brace according to the third embodiment of the present invention. FIG. 13 is a diagram for explaining a state in which a brace according to the third embodiment of the present invention is mounted on the head. FIG. 14 is an enlarged view of a part of the appliance according to the fourth embodiment of the present invention. FIG. 15 is a diagram for explaining a state in which a brace according to the fourth embodiment of the present invention is mounted on the head. FIG. 16 is a diagram for explaining a compression device for a brace according to the fourth embodiment of the present invention. FIG. 17 is a diagram for explaining the definition of the hanger angle in the measurement of the rotation direction of the head by the hanger reflection and the part contributing to the rotation. FIG. 18 is a diagram for explaining the measurement result of the rotation direction of the head and the part contributing to the rotation by the hanger reflection of three-point contact. FIG. 19 is a diagram for explaining the pressure distribution of the head when the turning angle reaches a peak in the case shown in FIG. FIG. 20 is a diagram for explaining the measurement result of the rotation direction of the head and the part contributing to the rotation by the two-point contact hanger reflection. FIG. 21 is a diagram for explaining the pressure distribution of the head when the turning angle reaches a peak in the case shown in FIG.

  Next, embodiments of the present invention will be described with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals.

(First embodiment)
With reference to FIG. 1, a brace 1 according to a first embodiment of the present invention will be described. The brace 1 is a therapeutic device for spastic torticollis, and is particularly a brace for relieving the symptoms of the spastic torticollis of the convoluted system. The brace 1 has a shape that fits the head. The orthosis 1 is mounted so as to be in close contact with the vicinity of the temple of the patient's head 11.

  As shown in FIG. 2, the appliance 1 includes an outer layer portion 2 and an inner layer portion 1.

  The outer layer portion 2 is elastic enough to be mounted on the head 11 and maintains a shape that fits the head 11. The outer layer portion 2 is made of, for example, a knitted glass fiber or a water curable resin. Examples of the material of the outer layer part 2 include water-curable casts (for example, “Castlite α” (product name), roll type width 50 mm) that can be easily obtained in the medical field. A water-curable cast is also called a plastic cast, and is generally wound around an affected part that requires local rest and position fixation. The material of the water curable cast is, for example, a water curable polyurethane resin and may not contain gypsum.

  In the first embodiment of the present invention, a water-curable cast having a width of 50 mm is used as the outer layer portion 2. However, since the width is wide, the pressure on the head 11 is increased. Therefore, when the patient wears it, it is preferable to take measures such as cutting the width to about 20 mm according to the patient's symptoms and pain.

  The inner layer portion 3 is a buffer portion that is provided in the outer layer portion 2 and presses while buffering a predetermined portion of the head portion 11. Here, the “predetermined location” is a location that induces hanger reflection. By squeezing this predetermined location, a hanger reflex that matches the symptoms of the patient's spastic torticollis can be induced. Details of the hanger reflection will be described later.

  As shown in FIG. 3, the inner layer portion 3 is provided on the entire inner surface of the outer layer portion 2. FIG. 3 is a cross-sectional view taken along line A-A ′ of the appliance 1 shown in FIG. 1.

  The inner layer portion 3 is particularly limited as long as it is a material that has a frictional force that can rotate the brace 1 and that generates extremely strong friction when a strong contact occurs at the compression point and can be fixed to the head 11. For example, urethane resin is preferable. Further, the thickness of the material of the inner layer part 3 may be determined as appropriate depending on the material, but is about 3 mm in the case of the urethane resin of the first embodiment.

  The brace 1 according to the first embodiment of the present invention is mounted on the brace 1 at a position shifted from a position that fits the head 11. In the orthosis 1, the inner layer portion 3 presses a predetermined portion of the head 11 using the elasticity of the outer layer portion 2.

  With reference to FIG. 4, the figure which mounted | wore the patient's head 11 with the brace 1 is demonstrated. FIG. 4A is a diagram showing a state in which a brace 1 conforming to the shape of the head 11 is attached to the patient's head 11 from above. The head 11 of the patient is regarded as an ellipse that is long in the vertical direction, that is, in the front-rear direction of the patient in the view shown in FIG. The brace 1 has a substantially elliptical shape that fits the head 11. In the state of FIG. 4A, the brace 1 is mounted so that the vicinity of the temple of the patient's head 11 is in close contact.

  Here, in order to improve the symptoms of spastic torticollis, it is necessary to compress a predetermined compression point on the head 11 of the patient. In addition, the brace 1 conforms to the shape of the head and is substantially elliptical, so that it can be rotated while being worn on the head 11. Therefore, when the brace 1 is rotated in the temporal direction, the brace 1 rotates due to the effect of the elasticity of the outer layer 2, and the shape of the brace 11 and the brace 1 are shifted by rotation, for example, two compression points. A force is applied to 4a and 4b. The appliance 1 rotated in this manner reaches the limit of deformation while being in contact with the compression points 4a and 4b of the head 11, and remains stationary while pressing the head 11. As a result, the brace 1 presses only a predetermined portion of the head 11 and the patient can wear the brace 1 without sliding off the head 11.

  This will be described in detail with reference to FIG. In FIG. 5A, the orthosis 1 is shown by a white ellipse, and the head 11 is shown by a hatching ellipse. Here, the brace 1 and the head 11 have the same shape. When the brace 1 is rotated in the temporal direction by an angle α, distortion occurs between the brace 1 and the head 11. As a result, pressure parts 4a and 4b that are more strongly compressed than before the rotation and clearance parts 5a and 5b that are weakly compressed before the rotation are generated in the brace 1. As shown in FIG. 5 (b), a strain of a distance d is generated between the contour 1 a of the brace 1 and the contour 11 a of the head 11 in the compression portion 4 a. The strain of the distance d fits the head 11 and compresses the compression part 4a by the elasticity of the appliance 1. Depending on the degree of elasticity of the brace 1 or the like, the clear portion 5a may be mounted in contact with the head 11 or may be mounted floating from the head 11.

  When the patient rotates the brace 1, it is considered that the maximum displacement in the region where the brace 1 and the head 11 overlap is changed to a force as shown in FIG. Therefore, it is considered that the compression force in the compression portions 4a and 4b is increased when the rotation is performed more. By rotating the brace 1, the contact position itself between the brace 1 and the head 11 also changes, so that actually “change in compression force” and “change in compression site” occur simultaneously. . Due to these synergistic effects, if the patient finely adjusts the rotation of the brace 1 as a result, it becomes possible to control a pseudo rotation force (so-called hanger reflection effect).

  In this way, the device 1 is brought into contact with the two compression points 4a and 4b of the head 11 by rotating the device 1 in the temporal direction and attaching it to the head 11 of the patient with spastic torticollis. be able to. The brace 1 can apply pressure similar to the state where the head 11 is covered with a wire hanger to induce hanger reflex.

  Here, it is known that the hanger reflection is generated by pressing the vicinity of the temporal temple. Therefore, by attaching the brace 1 so that the compression point 4a or 4b is provided near the temporal temple of the head 11, a hanger reflex is induced in the direction opposite to the inclination of the spastic torticollis, and the hanger reflex is an incentive. Can relieve spastic neck tilt.

  With reference to FIG. 6, the manufacturing method of the orthosis 1 which concerns on the 1st Embodiment of this invention is demonstrated. First, as shown in FIG. 6A, a knit 21 is put on the head 11 of the patient. Next, as shown in FIG. 6B, a lower bandage 22 is wound so as to cover the patient's temple. Wrap a lower bandage 22 around the patient wider than the brace 1 to be manufactured. Further, a water-curable cast soaked in water for about 5 to 10 seconds is wound on the lower bandage 22. When the water-curable cast is cured, the outer layer portion 2 conforms to the shape of the head portion 11. Further, the inner layer portion 3 is attached to the inner periphery of the outer layer portion 2. The appliance 1 according to the first embodiment of the present invention can be manufactured by such a procedure.

  Next, with reference to FIG. 7 thru | or FIG. 10, the compression position by mounting | wearing of the brace 1 which concerns on the 1st Embodiment of this invention is demonstrated. As for hanger reflection, right and left rotation of the head is well known, but side bending and back and forth bending of the head also exist. In the embodiment of the present invention, “side bending” refers to a state in which the head tilts to the left and right. “Front-back bending” refers to a state where the head is tilted back and forth. In hanger reflection, the head 11 rotates in a certain pattern by pressing a predetermined position of the head 11. Therefore, with reference to FIG. 7 to FIG. 10, a compression position and a rotation pattern of hanger reflection by the compression will be described. 7 to 10, (a) is a view observed from the front of the patient, (b) is a view observed from the right side of the patient, and (c) is a view. These are the figures observed from the patient's left side.

  First, with reference to FIG. 7, the left-right rotation pattern of the head 11 will be described. As shown in FIG. 7, the front side of the temporal region and the rear side of the temporal region are pressed. Specifically, the patient wears the brace 1 horizontally at a height near the temple portion of the head 11, and rotates the brace 1 in either the left or right direction so that the compression parts 4a and 4b are placed on the temporal region. Match the pressure points on the front and back of the contralateral head. Thereby, since the hanger reflex of right-and-left rotation can be induced, the symptom of the spastic torticollis in the left-right direction can be relieved. That is, in the example of FIG. 7, a left-turned hanger reflex is induced, and this hanger reflex is an incentive to correct the right-turned spastic neck.

  Next, with reference to FIG. 8, the rotation pattern of the head 11 in the lateral bending direction will be described. As shown in FIG. 8, the upper side of the temporal region and the lower side of the opposite temporal region are pressed. Specifically, the patient wears the brace 1 horizontally at a height near the temple portion of the head 11 and shifts one of the brace 1 near the temporal region upward and the other downward to compress the compression portion 4a and 4b is made to correspond to the compression points above the temporal region and below the opposite temporal region, respectively. Thereby, since the hanger reflex turning in the lateral bending direction can be induced, the symptoms of the spastic torticollis in the lateral bending direction can be alleviated. That is, in FIG. 8, a hanger reflex that laterally bends to the right is induced, and this hanger reflex causes the spastic neck to bend to the left.

  Next, with reference to FIG. 9, the back-and-forth bending pattern of the head 11 will be described. As shown in FIG. 9, the upper front and lower back are pressed. Specifically, the patient wears the brace 1 horizontally in the vicinity of the temple portion of the head 11, and shifts the brace 1 to the upper frontal region and the lower occipital region to move the compression parts 4a and 4b to the upper frontal region and the frontal region, respectively. Match the pressure point below the back of the head. Thereby, since the hanger reflex which rotates in the anteroposterior bending direction can be induced, the symptoms of the spastic torticollis in the anteroposterior bending direction can be relieved. That is, in FIG. 9, the hanger reflex that bends backward is induced, and thereby, the spastic torticollis that bends forward can be corrected.

  Next, with reference to FIG. 10, a description will be given of a combined rotation pattern of the head portion 11 in the lateral bending and longitudinal bending directions. As shown in FIG. 10, the upper left part of the forehead and the lower right part of the back of the head are pressed. Thereby, in the example shown in FIG. 10, the head 11 rotates toward the upper left by hanger reflection.

  The example shown in FIG. 10 is a combination of the convolution patterns described with reference to FIGS. 8 and 9. In this way, by combining a plurality of patterns, it is possible to deal with complicated rotation patterns. Therefore, the brace 1 according to the first embodiment of the present invention is suitable for alleviating the symptoms of spastic torticollis in any pattern of convolution.

  When the subject was wearing the brace 1 according to the first embodiment as described above, with regard to the revolving property of the head, “turning more than the wire hanger”, “feeling that the turning force is slightly stronger than the wire hanger”, Opinions such as "same level" were issued, and it was confirmed that the hanger reflection was effectively caused. It was also confirmed that the subject felt little pain by wearing the brace 1. In addition, pain did not increase even when worn for a long time. In addition, it was confirmed that there was a sense of stability when worn and there was no hindrance to daily life.

  As described above, the orthosis 1 according to the first embodiment has an outer layer portion 2 that is elastic enough to be attached to the head portion 11 and maintains a shape that fits the head portion 11, and the outer layer portion 2. Provided with the inner layer portion 3 that compresses while cushioning a predetermined portion of the head 11 so that the brace 1 can be rotated while being mounted on the head 11 and can be stably fixed at a predetermined position. it can.

  Moreover, by using the elasticity of the outer layer part 2 and mounting the brace 1 at a position shifted from a position suitable for the head part 11, the inner layer part 3 can press a predetermined part of the head part. Accordingly, the intensity and position of stimulation of the appliance 1 can be adjusted by moving the appliance 1 while the patient himself is wearing it.

  Furthermore, since the inner layer part 3 is provided on the entire inner surface of the outer layer part 2, the head part 11 can be pressed at an arbitrary position of the appliance 1. Thus, all convoluted spastic torticollis symptoms can be alleviated.

  In addition, the brace 1 is molded according to the shape of the patient's head 11. Therefore, even when the brace 1 is worn, the shape of the head is hardly changed compared to the case where the brace 1 is not worn. The patient can wear the brace 1 without being aware of the eyes of others.

  Thus, the brace 1 according to the first embodiment can relieve the symptoms of spastic torticollis without interfering with the daily life of the patient.

(Second Embodiment)
The device 1a according to the second embodiment is different from the device 1 according to the first embodiment in the structure of the inner layer portion 3a of the device 1a. With reference to FIG. 11, the cross section of the brace 1a which concerns on the 2nd Embodiment of this invention is demonstrated. 11 is a cross-sectional view taken along line AA ′ of the appliance 1a shown in FIG.

  Compared to the inner layer portion 3 according to the first embodiment of the present invention described with reference to FIG. 3, the appliance 1 a according to the second embodiment is different in that the high friction portion 5 is provided. The high friction part 5 is provided in the vicinity of the center of the appliance 1a so as to be able to contact the head 11. The inner layer portion 3a according to the second embodiment has a concave shape at the center, and the high friction portion 5 is provided in the concave portion. The high friction portion 5 is pressed against a predetermined portion by buffering at the recessed portion of the inner layer portion 3. The height of the high friction part 5 is set lower than the upper end of the inner layer part 3a. The high friction portion 5 is preferably a material that causes high friction, such as rubber. The high friction part 5 may be given to the whole inner layer part 3a, and may be given only to the part which can press a compression point.

  In the second embodiment, the patient causes the low frictional force of the inner layer portion 3a to be exhibited while the skin of the head portion 11 is brought into contact with the inner layer portion 3a without the high friction portion 5 being in contact with the head portion 11. The brace 1a can be rotated. Further, when fixing the brace 1a at a predetermined position, strong pressure is applied, the thickness of the inner layer part 3a formed of the buffer material is reduced, and the high friction part 5 is in contact with the skin of the head 11, It can be stably fixed at a predetermined position of the head 11 of the patient.

  As described above, the appliance 1a according to the second embodiment of the present invention uses the elasticity of the outer layer portion 3 to attach the appliance at a position shifted from the position suitable for the head 11, and has high friction. Since the predetermined part can be pressed by the part 5, the stability at the time of wearing of the brace 1a can be further improved.

(Third embodiment)
A brace 1b according to a third embodiment of the present invention will be described with reference to FIGS. The appliance 1b according to the third embodiment of the present invention is different in shape of the inner layer portion from the appliance 1 according to the first embodiment described with reference to FIG. The inner layer portion 3 of the appliance 1 is provided on the entire inner surface of the outer layer portion 2, while in the appliance 1 b according to the third embodiment, the inner layer portion is provided on a part of the inner periphery of the outer layer portion 2. ing. The outer layer portion 2 of the appliance 1b is the same as that in the first embodiment. In FIGS. 12 and 13, the case where two inner layer portions are provided has been described. However, three or more locations or one location may be used.

  As shown in FIG. 12, the appliance 1b includes an inner layer portion 6a and an inner layer portion 6b. As described in the first embodiment, the inner layer portions 6a and 6b are pressed while buffering a predetermined portion, and are formed of, for example, urethane resin. The positions of the inner layer portions 6a and 6b are provided so as to coincide with the compression points that cause the hanger reflection. The inner layer portions 6 a and 6 b can locally apply pressure to the head 11.

  With reference to FIG. 13, the state which mounted | wore the head 11 with the brace 1b which concerns on 3rd Embodiment is demonstrated. In FIG. 13, the patient wears the brace 1b horizontally. The inner layer portions 6a and 6b press the left side front of the head 11 and the back of the right side of the head, respectively. Thereby, as for the brace 1b, the head 11 rotates in the left-right direction by hanger reflection.

  When the subject was wearing such a brace 1b according to the third embodiment, it was confirmed that a constant rotational force could be obtained although it was comparable or slightly inferior to the wire hanger.

  According to the appliance 1b according to the third embodiment, the rotation can be caused by the hanger reflection under a certain condition. Moreover, since the inner layer portions 6a and 6b are provided only in a part of the outer layer portion 2, the cost can be reduced as compared with the appliance 1 according to the first embodiment.

  Since the brace 1b according to the third embodiment can install the inner layer portions 6a, 6b and the like at arbitrary locations, the inner layer is appropriately positioned to induce the hanger reflex according to the patient's condition. A section can be provided to correct spastic torticollis symptoms.

(Fourth embodiment)
As shown in FIG. 14, the appliance 1 c according to the fourth embodiment of the present invention is provided with a compression device 7 in the outer layer portion 2. The compression device 7 is a buffer portion that is provided on the outer layer portion 2 and compresses a predetermined portion of the head portion 11 while buffering it.

  As shown in FIG. 15, the compression devices 7a and 7b are installed in the appliance 1c. The compressors 7 a and 7 b can be installed at any location on the outer layer portion 2. The compresses 7a and 7b are partially provided with an elastic body such as a spring. Thereby, the distance of the head 11 and the brace 1c can be adjusted, and it can compress, buffering the predetermined location of the head 11. FIG.

  The compression device 7a will be described with reference to FIG. The compression device 7a includes a contact portion 71, elastic bodies 72a and 72b, adjustment plates 73a and 73b, an adjustment portion 74, and fixing portions 75a and 75b.

  The contact part 71 is a part that contacts the head 11. The contact portion 71 is, for example, a plastic plate, and preferably has a rubber-coated surface in order to reduce the impact of contact with the head portion 11. Elastic bodies 72 a and 72 b are connected to the contact portion 71.

  The elastic bodies 72a and 72b are elastic bodies such as springs, for example. Since the elastic bodies 72a and 72b generate appropriate friction, the patient can rotate the brace 1c with the head 11 and determine the installation position thereof. Further, after the installation position is determined, the head is pressed by the contact portion 71 by an elastic effect. The elastic bodies 72a and 72b are connected to the first adjustment plate 73a.

  The adjusting plates 73a and 73b and the adjusting unit 74 adjust the strength with which the compressor 7 presses the head 11. The adjustment unit 74 is, for example, a screw. The adjustment plates 73a and 73b are plastic plates, and are provided with holes provided with grooves through which the adjustment plate 74 can pass. By turning the screw of the adjusting unit 74, the interval between the adjusting plates 73a and 73b can be adjusted. By this adjustment, the distance between the brace 1c and the head 11 can be adjusted, and the compression force can be adjusted. Thereby, when a patient feels pain by mounting | wearing the brace 1c, the pain can also be relieved.

  The fixing parts 75a and 75b are constituted by bolts and nuts, for example. At a desired position, a bolt is passed through the outer layer portion 2 and fixed with a nut. Thereby, the compression device 7 can be installed at an arbitrary position of the outer layer portion 2.

  Since the appliance 1c according to the fourth embodiment can install the compression device 7 at an arbitrary location, the compression device 7 is installed at an appropriate location that induces the hanger reflex according to the patient's condition. And can correct the symptoms of spastic neck.

(Hanger reflection)
With reference to FIGS. 17 to 21, the hanger reflection used in each embodiment of the present invention will be described.

  Hanger reflection is a phenomenon in which a head rotates alone when a wire hanger is attached to the head. In order to elucidate this hanger reflection, a wire hanger was attached to the head, and the rotation direction of the head by the hanger reflection and the measurement of the part contributing to the rotation were tried.

  With reference to FIG. 17, the definition of the angle in this measurement is demonstrated. The state where the hook is in front of the subject is defined as 0 degree. From this state, the state where the hook is on the right side of the subject is defined as 90 degrees, the state where the hook is on the rear side of the subject is defined as 180 degrees, and the state where the hook is on the left side of the subject is defined as 360 degrees.

  In FIG. 17, the upper part is a view of a state in which a normal wire hanger is mounted, observed from above. In the present embodiment, a normal wire hanger is referred to as a three-point hanger because it contacts the head at three points. For example, when the hanger angle is 0 degrees, the hanger contacts the left and right temple portions of the subject at three points on the back of the head.

  Moreover, the lower stage in FIG. 17 is the figure which observed the state which mounted | wore with the 2-point hanger from the upper part. In the present embodiment, the two-point hanger is a hanger whose shape is changed so that the wire hanger contacts the head at two points. For example, when the hanger angle is 0 degree, the hanger contacts the subject's forehead center and the back of the head at two points.

  In this measurement, a film-like force sensor having a width of 13 mm is arranged side by side on the subject's head. Since the subject's head circumference is about 510 mm, 39 force sensors are arranged so as to cover the subject's head circumference. In this state, after putting the wire hanger on the subject, the pressure is acquired and recorded from each force sensor, and the rotation angle by the hanger reflection at this time is measured. Further, the wire hanger is rotated to further acquire and record the pressure from each force sensor, and the rotation angle by the hanger reflection at this time is measured. At this time, the wire hanger is rotated by 13 mm corresponding to the width of the film-like force sensor. In this way, the wire hanger is rotated by 13 mm, and the wire hanger is rotated 360 degrees, and measurement is performed for each state.

  FIG. 18 and FIG. 19 show measurement results when measurement is performed using a three-point hanger, that is, a normal wire hanger.

  The horizontal axis in FIG. 18 indicates the angle of the hanger worn by the subject. This angle follows the definition explained in FIG. The vertical axis | shaft of FIG. 18 has shown the rotation angle of the head at that time. In the case of rightward rotation, it is indicated by a positive rotation angle, and in the case of leftward rotation, it is indicated by a negative rotation angle.

  As shown in FIG. 18, when the hanger angle is 46 degrees, the right turn is a peak, and when the hanger angle is 360 degrees, the left turn is a peak. FIG. 19 (a) shows the pressure distribution of the head when the hanger angle is 46 degrees, that is, when the rightward turn is at a peak. FIG. 19B shows the head pressure distribution when the hanger angle is 360 degrees, that is, when the leftward turn is at a peak.

  Similarly, FIG. 20 and FIG. 21 are measurement results when measurement is performed using a two-point hanger.

  As shown in FIG. 20, when the hanger angle is 55 degrees, the right turn is a peak, and when the hanger angle is 360 degrees, the left turn is a peak. FIG. 21A shows the pressure distribution of the head when the hanger angle is 55 degrees, that is, when the rightward turn is at a peak. FIG. 21B shows the head pressure distribution when the hanger angle is 360 degrees, that is, when the leftward turn is at a peak.

  Referring to FIGS. 18 and 20, it is understood that the phenomenon of hanger reflection occurs due to the pressure distribution in the head and the direction of rotation due to the pressure on the front side of the temporal region or on the opposite side of the temporal region.

  Therefore, as described in each embodiment of the present invention, by attaching the brace so as to press the compression point where the hanger reflex occurs, the hanger reflex can be induced and the symptoms of spastic torticollis can be alleviated. .

(Other embodiments)
As described above, the first to fourth embodiments of the present invention have been described. However, it should be understood that the description and drawings constituting a part of this disclosure limit the present invention. Absent. From this disclosure, various alternative embodiments, examples, and operational techniques will be apparent to those skilled in the art.

  For example, in each embodiment of the present invention, the case where there are two compression points for hanger reflection has been described, but there may be one or more than three.

  It goes without saying that the present invention includes various embodiments not described herein. Therefore, the technical scope of the present invention is defined only by the invention specifying matters according to the scope of claims reasonable from the above description.

DESCRIPTION OF SYMBOLS 1 Equipment 2 Outer layer part 3, 6 Inner layer part 4 Compression part 5 High friction part 7 Compression device 11 Head 21 Knit 22 Lower wound bandage 71 Contact part 72 Elastic body 73 Adjustment plate 74 Adjustment part 75 Fixing part

Claims (6)

A therapeutic instrument for spastic torticollis,
Maintaining a substantially elliptical shape that fits the temporal region of the head, the outer layer portion corresponding to the width of the head, the short axis of the substantially elliptical shape ,
Provided on the inner periphery of the outer layer portion , and a buffer portion for buffering a predetermined portion of the head ,
When mounted with a shift from a state that fits the temporal region of the head, compression parts are formed that respectively press at least two places with a stronger force than before shifting,
The two locations are
It is in front of the temporal region and behind the temporal region on the opposite side, above the frontal region and below the occipital region, above the temporal region and below the temporal region on the opposite side, or above the left side of the frontal region and below the right side of the occipital region. A featured orthosis.   The outer layer portion has elasticity to the extent that it can be attached to the head portion,
  The compression part is compressed by the elasticity of the outer layer part.
  The orthosis according to claim 1.   The buffer portion has a frictional force that can be fixed to the head when the compression portion is formed.
  The orthosis according to claim 1 or 2, characterized in that. The appliance according to any one of claims 1 to 3, wherein the buffer portion is provided on an inner peripheral surface of the outer layer portion. The appliance according to any one of claims 1 to 3, wherein the buffer portion is provided on a part of an inner periphery of the outer layer portion. The appliance according to any one of claims 1 to 5, wherein the buffer portion is made of urethane resin.

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