WO2021199648A1 - 下肢矯正具 - Google Patents
下肢矯正具 Download PDFInfo
- Publication number
- WO2021199648A1 WO2021199648A1 PCT/JP2021/003534 JP2021003534W WO2021199648A1 WO 2021199648 A1 WO2021199648 A1 WO 2021199648A1 JP 2021003534 W JP2021003534 W JP 2021003534W WO 2021199648 A1 WO2021199648 A1 WO 2021199648A1
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- WIPO (PCT)
- Prior art keywords
- woven fabric
- band
- lower limb
- fabric band
- woven
- Prior art date
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Classifications
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F5/0102—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations
- A61F5/0104—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations without articulation
- A61F5/0111—Orthopaedic devices, e.g. splints, casts or braces specially adapted for correcting deformities of the limbs or for supporting them; Ortheses, e.g. with articulations without articulation for the feet or ankles
- A61F5/0113—Drop-foot appliances
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61F—FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS
- A61F5/00—Orthopaedic methods or devices for non-surgical treatment of bones or joints; Nursing devices; Anti-rape devices
- A61F5/01—Orthopaedic devices, e.g. splints, casts or braces
- A61F2005/0197—Orthopaedic devices, e.g. splints, casts or braces with spring means
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61H—PHYSICAL THERAPY APPARATUS, e.g. DEVICES FOR LOCATING OR STIMULATING REFLEX POINTS IN THE BODY; ARTIFICIAL RESPIRATION; MASSAGE; BATHING DEVICES FOR SPECIAL THERAPEUTIC OR HYGIENIC PURPOSES OR SPECIFIC PARTS OF THE BODY
- A61H3/00—Appliances for aiding patients or disabled persons to walk about
Definitions
- the present invention relates to a lower limb orthodontic appliance.
- Patent Document 1 discloses a foot orthosis that can lift the toes upward without blocking the movement of the foot. ing. Specifically, the first wearing body to be worn on a person's foot, the second wearing body to be worn on a person's thigh, and the expansion and contraction of a rubber band or the like attached so as to be hung between the two.
- the fixed lower limb corrector using a hard or semi-hard material such as metal or plastic has a feeling of strangeness due to contact with the skin when the lower limb corrector is worn, and a hard part when moving the body. It is accompanied by physical and mental pain of the patient, such as pain and unsightly appearance due to hitting, the need to increase the size of the foot shoes to which the lower limb corrector is attached, and the shoes of the same size on the left and right cannot be worn. In addition, caregivers have pointed out poor detachability. Furthermore, if you walk with the lower limb orthodontic appliance attached at home, the hard material part will hit the floor or inner wall and be rubbed, causing damage to either side, so it will be damaged indoors. Many problems have been pointed out, such as not wearing the lower limb orthodontic appliance.
- the orthosis for lower limb correction described in Patent Document 1 has a problem that it takes time and effort to wear the two wearing bodies and the stretching body because the two wearing bodies are brought close to each other by the stretchable body. ..
- the stretchable body is made of a material that stretches and contracts elastically, such as a rubber band, and its urging force only lifts the tip of the foot upward, so that the foot is guided to the original normal position and There is a problem that it cannot be retained and a desired correction effect or function improvement effect cannot be obtained.
- the present invention improves the problems of the prior art, and resists the fixing force and the straightening force required for the deformation and functional improvement of the lower limbs, and the friction, rocking, and compression between the straightening part and the straightening tool that occur during operation. Providing a straightening tool that can be used continuously, while maintaining both the followability of The task is to do.
- the present invention has the following configuration in order to solve such a problem.
- a lower limb corrector a woven band A1 covering at least a part of the ankle including the ankle and / or at least a part of the knee, a woven band A2 covering the foot including the cuboid bone, and at least one.
- the woven band B at least partially covers the foot containing the fifth metatarsal bone or cuboid bone, from the foot containing the fifth metatarsal bone or cuboid bone to the ankle and /
- it is arranged so as to be located over the knee portion, one of the longitudinal ends of the woven band B is connected to the woven band A1 and the other end is connected to the woven band A2, and the lower limb corrector is attached.
- the internal angle between the fabric band A1 and the fabric band B at the time is 30 ° to 90 °, and at least one of the fabric bands has an elongation rate at a load of 100 N / 5 cm in the width direction and the longitudinal direction, or.
- a lower limb corrector that is 0.5% or more and 50% or less in any of the directions.
- the lower limb correction tool according to (1) or (2) which contains one or more types of thermoplastic elastomer fibers as fibers constituting the woven fabric band A1, the woven fabric band A2, and the woven fabric band B.
- the lower limb corrector further includes one or more woven belts C, and at least a part of the woven belts C is arranged so as to cover the foot including the first metatarsal bone.
- One of the longitudinal ends of the fabric band C is attached to the fabric band A1 and the other end is the fabric so as to be located from the foot including the first metatarsal bone to the ankle and / or knee.
- the lower limb correction tool according to any one of (1) to (4) connected to the band A2.
- the lower limb orthodontic appliance according to (5) or (6) which contains one or more types of thermoplastic elastomer fibers as the fibers constituting the woven fabric band C.
- At least one of the woven fabric strips has an elongation rate at a load of 20 N / 5 cm of 0.1% or more and 10% or less in the width direction, the longitudinal direction, or one of the directions (1).
- the lower limb orthodontic appliance according to any one of (10).
- the elongation rate of the woven fabric band B in the longitudinal direction at a load of 50 N / 5 cm is 0.5% to 15%, and after repeating the extension and restoration under the load 1000 times, the woven fabric band B is extended in the longitudinal direction.
- At least one of the woven fabrics has an elongation recovery rate after 50 times of elongation at a load of 100 N / 5 cm in the longitudinal direction, which is 80% to 100% in the longitudinal direction, the width direction, or either direction.
- the lower limb orthodontic appliance according to any one of (1) to (12).
- the fixing force and the straightening force required for the deformation and functional improvement of the lower limbs are compatible with the followability to the friction, swing, compression, etc. between the straightening part and the straightening tool that occur during operation. , It is easy to wear, it does not spoil the appearance at the time of wearing, and in addition, it is possible to provide a straightening tool that can be used continuously by maintaining an appropriate fixing force and straightening force for a long period of time.
- the lower limb orthoses according to the present invention can be suitably used for orthoses such as lower limb orthoses for treatment and rehabilitation for the purpose of preventing deformation of the foot, improving functions, and improving movements in daily life. Is not limited to these.
- FIG. 2 is an enlarged view of a portion indicated by a broken line ellipse in FIG. It is a conceptual diagram which shows the lower limb correction tool using the woven belt C.
- FIG. 4 is an enlarged view of a portion indicated by a broken line ellipse in FIG.
- FIG. 5 is a conceptual diagram showing an embodiment in which the woven fabric band B is provided with a length adjusting mechanism.
- the lower limb corrector includes at least one woven band A1 covering at least a part of the ankle including the ankle and / or at least a part of the knee, and a woven band A2 covering the foot including the cuboid bone. Containing one woven band B, said woven band B covers at least a portion of the foot containing the fifth metatarsal bone or cuboid bone, from the foot containing the fifth metatarsal bone or cuboid bone to the ankle and /. Alternatively, it is arranged so as to be hung over the knee.
- At least one of the woven fabric bands used for the lower limb orthodontic appliance of the present invention has an elongation rate of 0.5% or more and 50% or less in the width direction and / or the longitudinal direction at a load of 100 N / 5 cm. There must be. Further, it is preferable that at least one of the woven fabric strips has an elongation rate at a load of 100 N / 5 cm of 1% or more and 20% or less in the width direction, the longitudinal direction, or any one of them. In other words, it is preferable that the elongation rate of the woven fabric band with a load of 100 N / 5 cm is 1% or more and 20% or less in the warp and weft direction or any of the directions. When the woven fabric bands A1, A2, B and the woven fabric band C to be used are used, it is more preferable that all of them including the woven fabric band C satisfy the above range.
- either the warp direction or the weft direction may be the longitudinal direction (or width direction) of the woven cloth band.
- the direction satisfying the above range in the longitudinal direction it is preferable to use the direction satisfying the above range in the longitudinal direction.
- the weft direction of the woven fabric used for the woven fabric band is designed to satisfy the above range and the weft direction is the longitudinal direction from the viewpoint of obtaining stable quality.
- FIG. 1 is a conceptual diagram showing an embodiment in which each woven fabric band is connected in the present invention
- FIG. 2 is an enlarged view of a portion indicated by a broken line ellipse in FIG.
- FIG. 1 has been described by taking the right foot as an example, the same applies to the left foot.
- any one of the woven fabric bands A1, A2, and B (when the woven fabric band C described later is included). Indicates any of the woven fabric bands A1, A2, B, and C).
- the woven fabric band A1 (1) and the woven fabric band A2 (2) are connected to the woven fabric band B (3), and when the lower limb correction tool is attached, the desired correction force by the woven fabric band B (3) is applied. It does not reduce the straightening force such as deviation, tearing, and excessive stretching, and has a function as a fulcrum for maintaining the straightening force by the woven fabric band B (3).
- the woven band A1 (1) covers at least a part of the ankle including the ankle and / or at least a part of the knee, and usually covers at least a part of the ankle including the ankle and / or the knee. Surround at least part of the. This is because the ankle including the ankle is caught by the ankle, and the knee is caught by the central part having the maximum diameter of the calf when the woven fabric band A1 (1) is pushed down. To prevent this, the woven fabric band A1 (1) functions as a fulcrum, and the straightening force is stabilized.
- the knee portion referred to here includes the upper calf, the popliteal fossa, and above the knee, and is surrounded so as to cover at least a part of the knee and to cover at least a part of the knee.
- the ankle refers to the foot including the center to the lower end of the tibia (9) and the fibula (10), and the ankle refers to the foot including at least a part of the talus (8) and the calcaneus (7). say.
- To cover at least a part of the ankle including the ankle may be surrounded so as to cover at least a part of the ankle and / or the ankle.
- At least one end of the woven fabric band A1 (1) is configured to be openable and closable so that the size and pressure can be finely adjusted.
- the woven belt A2 (2) covers the foot including the metatarsal bones, and usually circulates around the foot including the metatarsal bones. It is preferable that at least one end of the woven fabric band A2 (2) is configured to be openable and closable so that the size and pressure can be finely adjusted.
- the pressure applied to the human body of the woven fabric bands A1 and A2 when the lower limb orthodontic appliance is worn is preferably 1 hPa to 20 Pa, and more preferably 1 hPa to 15 Pa, respectively.
- the woven band B (3) is arranged so as to cover at least a part of the fifth metatarsal bone (5) or the cuboid bone (6), and the fifth metatarsal bone (5) or the cuboid bone (6) is covered.
- the woven belt B may be connected to the woven belt A2 (2) near the fifth metatarsal bone (5), or the sole of the foot may be covered from the cubic bone (6) to the metatarsal bone on the sole side. It may be extended in the direction of the first metatarsal bone (4) via the route, and may be connected to the textile band A2 (2) in the vicinity of the metatarsal bone on the sole side of the foot.
- the number of the woven fabric bands B may be one or more.
- the woven fabric band B and the woven fabric band A1 at the time of wearing in order to induce the ankle joint in a desired direction while exhibiting the desired correction force by the woven fabric band B at the time of wearing.
- the inner angle of the connecting portion is preferably 30 ° to 90 °, more preferably 40 ° to 80 °.
- the inner angle (12) between the woven fabric band A1 and the woven fabric band B is the center line of the woven fabric band A1 (1) and the woven fabric band B (3) when the lower limb correction tool is worn on one leg requiring correction.
- the center line is shown by a broken line in FIG. If the internal angle is smaller than 30 °, the desired correction force by the woven band B at the time of wearing cannot be exhibited, and the ankle joint requiring correction cannot be guided in the desired direction, so that the lower limbs are corrected. The corrective function as a tool is inappropriate.
- the ankle joint is the joint of the ankle, and the tibia (9), fibula (10), and talus (8) are combined and reinforced by the ligaments existing in the joint, and the ankle can be deflected up and down or left and right. It is a joint that is responsible for the movement toward the talus.
- Equinus is a type of deformation of the ankle joint, in which the ankle is stretched in a toe-like manner and does not return to its original state, and the heel does not touch the floor or becomes difficult to reach when standing or walking. It is a symptom.
- the contracture of the Achilles tendon and the contracture of the muscles existing in the lower limbs such as the triceps surae muscles generate a force to point the toes downward, and the foot is normal. It may not return to its position or may show contracture symptoms.
- the ankle joint is further inversion, which often results in a so-called inversion state. This is the so-called equinus varus.
- foot drop it is a symptom that the function of dorsiflexing the foot is lost due to the decrease in the muscles existing in the lower limbs, and the tip of the foot remains facing downward. If the symptom of the foot drop remains as it is for a long period of time, the symptom may be fixed and the symptom may become equinus.
- the ankle joint By guiding the ankle joint in the desired direction for such symptoms, it is as normal as possible against the difficulty of movement that causes deformation of the foot such as equinus and foot drop and functional deterioration such as walking.
- the symptom can be improved by correcting the condition and movement of the foot so as to approach the normal movement.
- the symptom may be improved by similarly correcting it.
- equinus equinus which is one of the typical examples of equinus, is caused by contracture of muscles existing in the lower limbs such as the Achilles tendon and the triceps surae muscle as described above, or due to abnormal muscle tension or the like. It is a symptom of pointing inward (so-called varus).
- varus a symptom of pointing inward
- the lower limb corrector when the lower limb corrector is worn, at least a part thereof is arranged so as to cover the fifth metatarsal bone or the cuboid bone, and the foot to the ankle and / or the foot including the fifth metatarsal bone or the cuboid bone.
- a corrective force for guiding the foot portion to the original normal position is exerted where the foot portion is directed inward.
- This orthodontic force is particularly useful for equinus varus, but of course it is also effective for other ankle instability.
- the method of connecting the woven fabric band B and the woven fabric band A can be appropriately selected as long as the straightening force in the desired direction is satisfied. Specifically, sewing with a sewing machine or the like, snap buttons, hook-and-loop fasteners, buckles, cans and the like are used.
- the woven fabric band B used in the present invention preferably has an elongation rate of 0.5% to 15% when a load of 50 N / 5 cm in the longitudinal direction is applied. Thereby, it is possible to easily apply a desired corrective force. More preferably, it is 0.8% to 12%.
- the elongation change rate of the woven fabric band B at a load of 50 N / 5 cm in the longitudinal direction is preferably 20% or less, preferably 15% or less. More preferably, 10% or less is more preferable.
- the lower limit is preferably small, specifically 0% or more.
- the force to return to the original correction position acts appropriately against the force applied by the wearer's foot when operating with this lower limb correction tool attached, so that the appropriate correction position It is preferable because it is effective in maintaining the function, recovering the function, and improving the daily walking movement.
- the lower limb orthodontic appliance of the present invention is worn and operated for a long period of time, it does not easily lose its shape, the initial performance can be continuously exhibited for a long period of time, and an appropriate fixing force and correction force are long. By holding it for a period of time, it can be used continuously, and it is more effective for functional recovery and improvement of daily operation.
- a woven fabric band C other than the woven fabric band A and the woven fabric band B may be arranged.
- the woven fabric band C can be used in one or more numbers.
- the fabric band C is arranged so as to cover at least a part of the first metatarsal bone, and is located from the foot including the first metatarsal bone to the ankle and / or the knee. It is preferable to connect one of the longitudinal ends of the above to the fabric band A1 and the other end to the fabric band A2.
- the woven fabric band A1 is arranged so as to cover at least a part of the knee portion, the woven fabric band C is arranged so as to be located over the knee portion, and is connected to the woven fabric band A1. Is preferable.
- FIG. 3 is a conceptual diagram showing a lower limb orthodontic appliance using the woven fabric band C
- FIG. 4 is an enlarged view of a portion indicated by a broken line ellipse in FIG. The figure shows the right foot, but the same applies to the left foot. This will also be described below with reference to this.
- the woven band C (13) covers the foot portion including the first metatarsal bone (4), and extends from the foot portion to the instep and from the lateral portion to the ankle portion including the Achilles tendon from the lateral side to the medial side. It may be arranged so as to cover the foot from the outside to the ankle including the Achilles tendon from the outside to the instep, and from the lower leg (11) including the tibia (9) to the knee. It may be arranged so as to cover it.
- the foot including the first metatarsal bone (4) is covered and the foot is moved from the medial side to the lateral side of the sole, and from the lateral side of the calcaneus (7) to the medial side of the ankle including the Achilles tendon. It may be arranged so as to cover it, or it may cover the foot including the first metatarsal bone (4) and move from the inside to the outside of the sole to the outside of the calcaneus (7) to the inside of the ankle including the Achilles tendon. It may be arranged so as to cover from the lower leg (11) including the tibia (9) to the knee.
- the latter arrangement is more preferable in that it facilitates landing from the ball of the thumb (thumb).
- the woven fabric band C When connected in this way, the woven fabric band C usually intersects with the woven fabric band B, or partially overlaps or touches (this part is collectively referred to as a "contacting part").
- the internal angle (14) between the woven fabric band C (13) and the woven fabric band B (3) when the lower limb orthodontic appliance is worn is preferably 30 ° to 80 °, preferably 35 ° to 35 °. More preferably, it is 70 °.
- the inner angle (14) between the woven fabric band B and the woven fabric band C means that when the lower limb correction tool is worn on one leg requiring correction, the woven fabric band B (3) and the woven fabric band C (13) Of the angles formed by each center line, the angle is 90 ° or less.
- the center line is shown by a broken line as the center line (15) of the woven fabric band B and the center line (16) of the woven fabric band C in FIG.
- the wearer's foot is unstable during operation and the middle leg.
- the front half of the foot including the bone bends excessively inward, or when the corrective force that suppresses the varus of the woven band B works excessively and the front half of the foot bends excessively inward, the excess. It is possible to suppress the movement of bending inward, maintain an appropriate correction position, recover the function, and improve the daily walking movement, which is more effective.
- the woven fabric band C can be used by connecting the end portion in the longitudinal direction to each of the woven fabric band A1 and the woven fabric band A2 as described above, but is further connected to the woven fabric band B for use. can do.
- the connection can usually be performed at the portion where the woven fabric bands B and C are in contact with each other. This is preferable because the risk that the inner angle of the connecting portion between the woven fabric band C and the woven fabric band B deviates from the desired range can be reduced, and the ease of wearing is further improved.
- the method of connecting the woven fabric band C, the woven fabric band A1, the woven fabric band A2, and the woven fabric band B can be appropriately selected as long as the desired correction effect at the time of wearing the lower limb correction tool is satisfied. Specifically, sewing with a sewing machine or the like, a hook-and-loop fastener, a snap button, or the like is used.
- the woven structure of the woven fabric band is not particularly limited as long as it satisfies the range specified in the present invention, but at least one structure such as a plain weave, a twill weave, a satin weave, or a double weave in which these structures are combined is used. More than a species, it can be appropriately selected according to the application.
- the woven fabric used for the woven fabric has elasticity, and the elongation rate at a load of 20 N / 5 cm is preferably 0.1% to 10% in the warp direction and the weft direction, or in either direction. It is preferable that at least one of the woven fabric bands used satisfies this range, and it is more preferable that all of the woven fabric bands satisfy the above range.
- the elongation rate of the woven fabric used for the woven fabric band at a load of 50 N / 5 cm is 0.5% in the warp and weft direction or in any one of the above woven fabric bands A1, A2, B, and C. It is preferably ⁇ 15%. It is preferable that at least one of the woven fabric bands used satisfies this range, and it is more preferable that all of the woven fabric bands satisfy the above range.
- either the warp direction or the weft direction may be the longitudinal direction (or width direction) of the woven fabric band. No.
- the direction satisfying the above range in the longitudinal direction it is preferable to use the direction satisfying the above range in the longitudinal direction.
- the weft direction can be set to the longitudinal direction, which is preferable in that stable quality can be obtained.
- the woven belt stretches according to the strength of the movement, so that the foot is stretched moderately without being excessively fixed, and the friction between the foot and the lower limb corrector is reduced. Therefore, the ability to follow the swing of the foot during movement and the pressure on the part covered by the woven belt, which occurs when the corrective force is applied, is improved, and the pain and discomfort during wearing are suppressed.
- the woven belt receives the force applied by the wearer during operation, which makes it easier to move the muscles, and is effective in recovering the function and improving the daily operation.
- the woven belt stretches moderately, and while following the movement, exerts a straightening force on the foot, and the movement is within a certain stress range.
- the woven belt does not follow the movement and stably fixes the foot, leading to an appropriate correction range.
- the form of the yarn used for the woven fabric band may be either short fiber or long fiber as long as it satisfies the range specified in the present invention.
- the material of the yarn is not limited to natural fibers, synthetic fibers, etc. as long as it satisfies the range specified in the present invention, and various fibers can be used.
- synthetic fibers such as polyester fibers, polyamide fibers and thermoplastic elastomer fibers, cellulose fibers such as rayon and cotton, and natural fibers such as wool and silk can be appropriately used.
- these fibers may be used alone or two or more kinds may be used at the same time.
- elastic fibers which are elastic materials, with the above-mentioned yarn.
- the elastic fiber to be mixed at least one kind of thermoplastic elastomer fiber can be used.
- thermoplastic elastomer fiber a polyurethane elastic fiber, a thermoplastic polyester elastomer fiber, or the like can be used, but the thermoplastic polyester is easy to obtain dimensional stability and high elasticity elasticity. Elastomer fibers are more preferred.
- the fineness of the fibers used for the woven fabric band is preferably 30 decitex to 1500 decitex, and more preferably 50 decitex to 1000 decitex.
- the fineness of the elastic fiber is preferably 50 decitex to 1500 decitex, and more preferably 156 decitex to 1000 decitex.
- the fineness of the non-elastic fiber, which is another fiber, is preferably 30 decitex to 1000 decitex, and more preferably 50 decitex to 500 decitex.
- the elastic fibers are used for at least a part of either one or both of the warp yarns and the weft yarns.
- the ratio of elastic fibers used is appropriately determined within a range in which desired characteristics can be obtained, but is preferably about 30% by weight to 70% by weight of the warp or weft as a whole or the woven fabric as a whole. ..
- the elongation rate can be adjusted by appropriately adjusting the crimp rate.
- the desired extensibility can be obtained. It is preferably 10% or more and 30% or less.
- the crimp ratio of the inelastic fibers is preferably 5% or more and 30% or less.
- the inelastic fiber also follows according to the crimp rate, and the excessive stretching by the elastic fiber can be stopped.
- the crimp rate of the elastic fiber in that case is also appropriately set according to the desired characteristics, but is preferably 0% or more and 5% or less.
- the weaving density of the fabric band used in the present invention is preferably 20 lines / inch (2.54 cm) to 150 lines / inch (2.54 cm), respectively, in terms of warp and weft densities, and 30 lines / inch (2. It is more preferably 54 cm) to 100 / inch (2.54 cm).
- the elongation recovery rate after repeated stretching 50 times under a load of 100 N / 5 cm of the woven fabric used for the woven fabric band is preferably 80% to 100% in the width direction and / or the longitudinal direction, preferably 85% to 100%. 100% is more preferable, and 90% to 100% is more preferable. It is preferable that at least one of the woven fabric bands used satisfies this range, and it is more preferable that all of the woven fabric bands satisfy the above range.
- the extension recovery rate By setting the extension recovery rate after 50 times of repetition within the above range, the force to return to the original correction position acts appropriately against the force applied by the wearer's foot during operation, and appropriate correction is performed. It is preferable because the position is maintained, the function is restored, and the daily walking motion is improved.
- the lower limb orthodontic appliance of the present invention can be used continuously, and is more effective in recovering functions and improving daily movements.
- the most preferable woven fabric band is made of inelastic fibers in which either the warp or the weft has a crimp ratio of 10% or more and 30% or less, and at least a part of the other has a crimp ratio of 0% or more and 5% or less. It is a plain woven fabric made of elastic fibers having.
- the weaving density is preferably 30 yarns / inch (2.54 cm) to 100 yarns / inch (2.54 cm) in terms of warp yarn density and weft yarn density.
- the fineness is preferably 50 decitex to 500 decitex for non-elastic fibers and 156 decitex to 1000 decitex for elastic fibers.
- the lower limb orthodontic appliance of the present invention preferably has the woven fabric band A1 and / and the woven fabric band A2 provided with a mechanism capable of arbitrarily adjusting the tightening force when worn.
- the woven band A1 and / and the woven band A2 do not deviate from or come off from a predetermined position, and the above-mentioned In the woven band A1, at least a part of the ankle including the ankle and / or at least a part of the knee can be stably covered and gripped, and in the woven band A2, the metatarsal of the foot can be gripped.
- the woven belt B acts suitably as a support that exerts a corrective force.
- the adjusting mechanism is not particularly limited, but a belt, a hook, a hook-and-loop fastener, a button, a buckle, a can, and the like can be appropriately selected depending on the intended use.
- the lower limb orthodontic appliance of the present invention preferably has a mechanism that can be opened and closed when worn.
- the mechanism that can be opened and closed at the time of wearing is a mechanism that opens and closes so as to widen the opening when the lower limb orthodontic appliance is attached and detached, and makes it possible to open and close a place that is not open to facilitate attachment and detachment.
- the place where the opening / closing mechanism is provided is not particularly limited as long as it does not impair the straightening function and can be easily attached / detached. It can be installed in any location.
- the number of places where the mechanism that can be opened and closed is provided may be one or more.
- the woven fabric band B is provided with a length adjusting mechanism.
- a length adjusting mechanism a mechanism capable of pulling the woven fabric band B upward from the vicinity of the connecting portion between the woven fabric band A2 and the woven fabric band B is preferable.
- the hemiplegic patient can easily wear it with one hand.
- the woven band B is pulled upward when the lower limb orthodontic appliance of the present invention is worn while returning the abnormal foot position such as equinus varus to the normal position at the time of wearing.
- you adjust the length you can also adjust the correction force at the same time, which is excellent.
- a mechanism for adjusting the length is provided by providing a hole on the woven fabric band side, folding back through the woven fabric band B, and pulling to stop.
- Mechanism 1) as shown in FIG. 5, the woven fabric band B is composed of two or more members, and the woven fabric band B on the connecting side with the woven fabric band A2 is pulled from the connecting portion to connect with the woven fabric band A1.
- a mechanism (mechanism 2) that enables connection with the woven fabric band B of the above can be mentioned.
- a hole or a can provided in the woven fabric band A2 is used as a connecting portion, the woven fabric band B is passed through the connecting portion, and the end portion of the woven fabric band B is hooked on the woven fabric band B.
- Other methods such as fixing with a fixture.
- the woven fabric band B is composed of two members b1 and b2, the member b1 is connected to the woven fabric band A1, the member b2 is connected to the woven fabric band A2, and both the members b1 and b2 are connected.
- a mechanism for adjusting the length by pulling b2 and fixing it to b1 can be mentioned.
- Examples of the fixing method for fixing b1 and b2 include a method of folding back through a can and fixing with a hook-and-loop fastener, a method of connecting with a fixing tool such as a ladder lock or a buckle, and the like.
- the connecting portion is preferably provided on the instep or at least at the height of the ankle or less.
- a length adjusting mechanism such as the above mechanisms 1 and 2 can also function as a mechanism that can be opened and closed.
- the opening / closing mechanism is not particularly limited, but can be appropriately selected depending on the application, such as a wire fastener, a fastener such as a hook-and-loop fastener, a button such as a snap button, and a tack button.
- a wire fastener such as a wire fastener
- a fastener such as a hook-and-loop fastener
- a button such as a snap button
- a tack button for example, by providing an opening / closing opening with a fastener on the side surface of the lower leg, it becomes possible to attach / detach more easily.
- the lower limb correction tool of the present invention may be integrally formed with the leg wear covering at least from the knee to the foot in the woven fabric band as long as it satisfies the desired correction force, detachability and other characteristics.
- the woven fabric band and the leg wear may be partially connected, but it is more preferable that the woven fabric band and the leg wear are connected and integrally formed.
- the woven fabric band A1 it is preferable that at least a part of the front part of the knee part such as the kneecap or the part covering the front part of the ankle part is connected to the leg wear.
- the woven fabric band B it is preferable that at least a part of the portion covering the lower leg including the tibia is connected to the leg wear from the viewpoint of detachability. Of course, you may do both of these.
- the connection method is not particularly limited, but can be appropriately selected depending on the application such as sewing and adhesion.
- the lower limb orthosis of the present invention is preferably an orthosis that does not contain a metal or hard resin frame, a monocoque, or the like, that is, a so-called soft orthosis.
- Fineness and number of filaments Fineness was measured based on JIS L 1013: 2010 8.3.1 Positive quantity fineness (method A). The number of filaments was measured based on JIS L 1013: 2010 8.4.
- Rate of change in elongation of the woven fabric band B in the longitudinal direction A 50 mm ⁇ 300 mm test piece was passed through the woven fabric used for the woven fabric band B, and five pieces were collected in each of the weft directions. Using a constant-speed extension type tensile tester with an automatic recording device, the grip interval was marked as 200 m (Lb), and the test piece was fixed to the grip after removing slack and tension.
- ⁇ Walking During the swinging period, the foot bends dorsiflexively, and when landing, walk so that the heel and toes touch the ground at the same time. ⁇ : During the walking swing period, the foot cannot bend dorsiflexively, and the tip of the foot gets caught on the ground when landing. B. Inversion correction ⁇ : There is no inversion of the foot during walking, and when landing, walk so that both the outer and inner edges of the sole touch the ground. ⁇ : There is some inversion of the foot during walking, and when landing, walk so that both the outer and inner edges of the sole touch the ground. X: The inversion of the foot cannot be corrected during walking, and the outer edge of the sole of the foot touches the ground at the time of landing, resulting in unstable walking.
- Rubbing ⁇ No pain is felt around the woven belt while walking. ⁇ : I do not feel any pain around the woven fabric band B while walking, but I feel a sense of discomfort as if I rubbed it. ⁇ : I feel pain by rubbing against my skin around the textile band while walking.
- Crimp rate The warp and weft extracted from the woven fabric were subjected to JIS L1096: 2010 8.7 (Method B). Twenty threads were measured and the average value was shown.
- Example 1 A tricot knitted fabric in which two types of fibers, 54 decitex polyester fibers and 156 decitex polyurethane fibers as elastic fibers, were interwoven was used for the leg wear.
- 167 decitex polyester (polyethylene terephthalate) fiber which is an inelastic yarn
- 700 decitex polyester elastomer "Hytrel” (registered trademark) monofilament which is an elastic yarn
- the obtained woven fabric was heat-treated at a temperature of 180 ° C. for 2 minutes to obtain a woven fabric having a warp density of 45 threads / inch (2.54 cm) and a weft density of 46 threads / inch (2.54 cm).
- the crimp rates of the warp and weft were 20% and 3%, respectively.
- the obtained woven fabric had an elongation rate of 2% in the warp direction and 8% in the weft direction at a load of 100 N / 5 cm, and an elongation rate of 1% in the warp direction and 2% in the weft direction at a load of 20 N / 5 cm.
- the elongation recovery rate after 50 times of elongation at a load of 100 N / 5 cm was 92% in the warp direction and 93% in the weft direction.
- the weft direction of the obtained woven fabric was set as the longitudinal direction of the woven fabric band, the elongation rate of the woven fabric band in the longitudinal direction at a load of 50 N / 5 cm was 3%, and the elongation and restoration under the load were repeated 1000 times. Later, the rate of change in elongation of the woven fabric band in the longitudinal direction was 12%.
- the legwear has a sock shape that covers from the foot of one foot to the knee, and the fabric band A1 covers the knee including the patella so that the circumferential direction of the knee and the weft direction of the obtained fabric are aligned.
- the woven band A2 is circulated so as to cover the foot portion including the metatarsal bone. At that time, the width direction of the foot and the weft direction of the obtained woven fabric were aligned.
- One end of the woven fabric band B was connected to the woven fabric band A2 so that the weft direction of the woven fabric was the longitudinal direction.
- the connecting portion is formed in the vicinity of the foot including the cuboid bone on the fifth metatarsal side of the woven belt A2, and the woven belt B is in front of the lower leg including the tibia so as to cover the foot including the cuboid bone.
- the portion is extended from the outside to the inside to the woven band A1 to form an internal angle between the woven band A1 and the woven band B when the lower limb corrector is attached so as to be 45 °.
- Both the woven fabric bands A1 and A2 were adjusted so that the pressure applied to the human body was 15 hPa.
- the woven fabric band B was worn by the wearer and adjusted to a length so that excessive stress was not applied while the heel was in contact with the ground while standing.
- the woven fabric band A1 a part of the part covering the knee part including the kneecap is sewn, and in the woven fabric band B, a part of the part covering the front part of the lower leg part including the shinbone is sewn with legwear and a sewing machine.
- the woven fabric band A2 is integrated with the woven fabric band B and connected by sewing with a sewing machine. It was lined with a fastener, circulated so as to cover the foot including the metatarsal bone B, and the contact surface with the legwear was adhered with a hook-and-loop fastener so that the desired tightening force could be adjusted.
- the elongation rate of the woven fabric band A2 lined with the hook-and-loop fastener at a load of 100 N / 5 cm is 1.5% in the width direction and 6% in the longitudinal direction, and the elongation rate at a load of 20 N / 5 cm is 0.5% in the width direction. It was 1.5% in the longitudinal direction, and the elongation recovery rate after 50 times of elongation at a load of 100 N / 5 cm was 94% in the width direction and 94% in the longitudinal direction.
- This lower limb orthodontic appliance showed excellent performance because it can be used continuously.
- the wearer wears this lower limb orthodontic appliance at home, he / she was able to comfortably wear it without damaging the floor.
- the wearer wore this lower limb orthodontic appliance and put on the shoes he was able to put on the shoes according to the size of the foot. Further, since it is sock-like, it is easy to put on and take off, and it is easy to adjust the positions of the woven fabric band A1 and the woven fabric band A2.
- Example 2 A sock-type lower limb orthodontic appliance was used in the same manner as in Example 1 except that the internal angle between the woven fabric band A1 and the woven fabric band B when the lower limb orthodontic appliance was worn was adjusted to 65 °.
- This lower limb orthodontic appliance showed excellent performance because it can be used continuously.
- the wearer wears this lower limb orthodontic appliance at home, he / she was able to comfortably wear it without damaging the floor.
- I put on my shoes with this lower limb orthodontic appliance I was able to put on shoes that fit the size of my foot. Further, since it is sock-like, it is easy to put on and take off, and it is easy to adjust the positions of the woven fabric band A1 and the woven fabric band A2.
- Example 3 A sock-type lower limb orthodontic appliance was used in the same manner as in Example 1 except that the internal angle between the woven fabric band A1 and the woven fabric band B when the lower limb orthodontic appliance was worn was adjusted to 85 °.
- This lower limb orthodontic appliance showed excellent performance because it can be used continuously.
- the wearer wears this lower limb orthodontic appliance at home, he / she was able to comfortably wear it without damaging the floor.
- the wearer wore this lower limb orthodontic appliance and put on the shoes he was able to put on the shoes according to the size of the foot. Further, since it is sock-like, it is easy to put on and take off, and it is easy to adjust the positions of the woven fabric band A1 and the woven fabric band A2.
- Example 4 The warp direction of the obtained woven fabric was set as the longitudinal direction of the woven fabric band, and other than that, a sock type lower limb orthodontic appliance was used as in Example 1.
- the elongation rate at a load of 50 N / 5 cm in the longitudinal direction of the woven fabric was 1.7%, and after repeating the extension and restoration under the load 1000 times, the elongation change rate in the longitudinal direction of the woven fabric was 9%.
- This lower limb orthodontic appliance showed excellent performance because it can be used continuously.
- the wearer wears this lower limb orthodontic appliance at home, he / she was able to comfortably wear it without damaging the floor.
- the wearer wore this lower limb orthodontic appliance and put on the shoes he was able to put on the shoes according to the size of the foot. Further, since it is sock-like, it is easy to put on and take off, and it is easy to adjust the positions of the woven fabric band A1 and the woven fabric band A2.
- Example 5 The woven fabric band C was added to the lower limb orthodontic appliance of Example 3, and one end of the woven fabric band C was connected to the woven fabric band A2 in the longitudinal direction.
- the connection point was the vicinity of the foot including the first metatarsal bone of the woven fabric band A2.
- the woven band C covers the foot including the first metatarsal bone, covers from the medial side of the sole to the lateral side, from the lateral side of the heel to the medial side of the ankle portion including the Achilles tendon, and from the lower leg portion including the tibia to the knee portion. It was placed so as to cover it.
- the intersecting portions were connected by a sewing machine, and the inner angle between the woven fabric band B and the woven fabric band C when the lower limb corrector was attached was formed to be 45 ° and connected to the woven fabric band A1.
- a sock-type lower limb corrector was used as in Example 1.
- the elongation rate of the woven fabric band in the longitudinal direction at a load of 50 N / 5 cm is 1.7%, and after repeating the extension and restoration under the load 1000 times, the elongation change rate of the woven fabric band in the longitudinal direction is 9%. there were.
- This lower limb orthodontic appliance showed excellent performance because it can be used continuously.
- the wearer when wearing this lower limb orthodontic appliance at home, the wearer was able to comfortably wear it without damaging the floor.
- the wearer wore this lower limb orthodontic appliance and put on the shoes he was able to put on the shoes according to the size of the foot.
- it since it is sock-like, it is easy to put on and take off, and it is easy to adjust the positions of the woven fabric band A1 and the woven fabric band A2.
- the anterior tilt of the trunk due to the functional deterioration of the tibialis anterior muscle was improved during walking of the wearer, and the wearer was able to walk more stably.
- the woven belt B of the lower limb corrector is composed of two members b1 (elastic woven belt B (b1) 17) and b2 (elastic woven belt B (b2) 18), and the member b1 is a woven fabric belt. It is connected to A1, the member b2 is connected to the woven fabric band A2, and when both the members b1 and b2 are connected, b2 is pulled and fixed to b1 to adjust the length, and b1 and b2 are fixed.
- a lower limb correction tool was produced by the same method as in Example 1 except that the method was to pass the can 19 and fold it back and fix it with a hook-and-loop fastener.
- the woven fabric band B was adjusted to a length that does not apply excessive stress in a standing position with the heel in contact with the ground after being worn by the wearer, and a wearing test was conducted.
- This lower limb orthodontic appliance showed excellent performance because it can be used continuously.
- the wearer when wearing this lower limb orthodontic appliance at home, the wearer was able to comfortably wear it without damaging the floor.
- the wearer wore this lower limb orthodontic appliance and put on the shoes he was able to put on the shoes according to the size of the foot.
- it since it is sock-like, it is easy to put on and take off, and it is easy to adjust the positions of the woven fabric band A1 and the woven fabric band A2.
- by adjusting the length of the woven belt B it is possible to set the corrective force according to the symptoms such as equinus varus of the wearer, which makes it easier for hemiplegic patients to wear it with one hand. rice field.
- Example 1 A sock-type lower limb orthodontic appliance was used in the same manner as in Example 1 except that the internal angle between the woven fabric band A1 and the woven fabric band B when the lower limb orthodontic appliance was worn was adjusted to 20 °.
- both the warp and the weft are twisted yarns in which 80 decitex polyester (polyethylene terephthalate) fiber and 80 decitex polyurethane fiber "Lycra" (registered trademark), which is an elastic yarn, are combined.
- a plain woven fabric having a density of 41 threads / inch (2.54 cm) and a weft density of 43 threads / inch (2.54 cm) was produced.
- the obtained woven fabric was heat-treated at a temperature of 130 ° C. for 2 minutes to obtain a woven fabric having a warp density of 45 threads / inch (2.54 cm) and a weft density of 46 threads / inch (2.54 cm).
- the crimp rates of the warp and weft were 5% and 3%, respectively.
- the obtained woven fabric had an elongation rate of 45% in the warp direction and 47% in the weft direction at a load of 100 N / 5 cm, and an elongation rate of 15% in the warp direction and 17% in the weft direction at a load of 20 N / 5 cm.
- the elongation recovery rate after 50 times of elongation at a load of 100 N / 5 cm was 70% in the warp direction and 72% in the weft direction.
- the weft direction of the obtained woven fabric was set as the longitudinal direction of the woven fabric band, the elongation rate of the woven fabric band in the longitudinal direction at a load of 50 N / 5 cm was 35%, and the elongation and restoration under the load were repeated 1000 times. Later, the rate of change in elongation of the woven fabric band in the longitudinal direction was 30%.
- the elongation rate of the woven fabric band A2 lined with the hook-and-loop fastener at a load of 100 N / 5 cm is 39% in the width direction and 40% in the longitudinal direction, and the elongation rate at a load of 20 N / 5 cm is 12% in the width direction and 15% in the longitudinal direction.
- the elongation recovery rate after 50 times of elongation at a load of 100 N / 5 cm was 72% in the width direction and 75% in the longitudinal direction.
- a sock-type lower limb orthodontic appliance was used in the same manner as in Comparative Example 1 except that the above woven fabric was used for the woven fabric band.
- dorsiflexion correction was ⁇
- inversion correction was ⁇
- correction force was ⁇
- oppressive feeling was ⁇
- rubbing was ⁇ .
- the inner angle between the woven fabric band A1 and the woven fabric band B was low, and the leg requiring correction could not be corrected to the normal position.
- the ankle joint inverts and bends to the bottom, and when landing, the tip of the foot lands first, and if you try to kick back with the tip of your foot, the balance of the lower limbs will be lost. , The wearer could not walk stably. Therefore, it was unsuitable because the functions necessary for deforming the legs and improving walking function were not recognized.
- woven fabric used for the woven fabric band 167 decitex high-strength polyester (polyethylene terephthalate) fibers, which are inelastic threads, are used for both the warp and the weft, and the warp density is 43 threads / inch (2.54 cm) and the weft density is 45 threads /.
- a plain woven fabric of inch (2.54 cm) was produced.
- the obtained woven fabric was heat-treated at a temperature of 130 ° C. for 2 minutes to obtain a woven fabric having a warp density of 45 threads / inch (2.54 cm) and a weft density of 46 threads / inch (2.54 cm).
- the crimp rates of the warp and weft were 2% and 3%, respectively.
- the obtained woven fabric had an elongation rate of 0.5% in the warp direction and 0.6% in the weft direction at a load of 100 N / 5 cm, and an elongation rate of 0.05% in the warp direction at a load of 20 N / 5 cm. It was 0.07% in the weft direction, and the elongation recovery rate after 50 times of stretching under a load of 100 N / 5 cm was 94% in the warp direction and 95% in the weft direction.
- the weft direction of the obtained woven fabric is set as the longitudinal direction of the woven fabric band, the elongation rate of the woven fabric band in the longitudinal direction at a load of 50 N / 5 cm is 0.1%, and the extension and restoration under the load are performed 1000 times. After repeating, the rate of change in elongation of the woven fabric band in the longitudinal direction was 10%.
- the elongation rate of the fabric band A2 lined with the hook-and-loop fastener at a load of 100 N / 5 cm is 0.2% in the width direction and 0.4% in the longitudinal direction, and the elongation rate at a load of 20 N / 5 cm is 0.04 in the width direction. %, 0.05% in the longitudinal direction, and the elongation recovery rate after 50 times of elongation at a load of 100 N / 5 cm was 95% in the width direction and 96% in the longitudinal direction.
- a sock-type lower limb orthodontic appliance was used in the same manner as in Comparative Example 1 except that the above-mentioned woven band was used instead of the woven band of Comparative Example 1.
- the dorsiflexion correction was ⁇
- the inversion correction was ⁇
- the correction force was ⁇
- the feeling of oppression was ⁇
- the rubbing was ⁇ .
- the inner angle between the woven fabric band A1 and the woven fabric band B was low, and the leg requiring correction could not be corrected to the normal position.
- Example 5 Example 1 except that the polyester elastomer "Hytrel” (registered trademark) monofilament was used for the woven fabric band and the internal angle between the woven fabric band A1 and the woven fabric band B was adjusted to 20 ° when the lower limb corrector was attached. A sock-type lower limb corrector similar to the above was used.
- Hytrel registered trademark
- Example 6 A sock-type lower limb orthodontic appliance similar to that of Example 2 was used except that the position of the woven band A1 was set to the position of the maximum diameter in the calf.
- Example 7 A sock-type lower limb orthodontic appliance similar to that of Example 1 was used except that a commercially available rubber band was used instead of the woven fabric used for the woven fabric bands A1, A2, and B.
Abstract
Description
繊度は、JIS L 1013:2010 8.3.1 正量繊度(A法)に基づき測定した。フィラメント数は、JIS L 1013:2010 8.4に基づき測定した。
織物帯に用いる織物に対して、50mm×300mmの試験片を経、緯方向にそれぞれ5枚ずつ採取した。自動記録装置付定速伸長形引張試験機を用い、つかみ間隔を200mmとし、試験片のたるみや張力を除いてつかみに固定した。引張速度200mm/分で荷重150Nに到達するまで伸ばし、測定を実施して得た荷重変形曲線に基づき、100Nの時の変位を測り、次の式により伸長率L(%)を求め、5枚の平均で表した。
伸長率L(%)=(L1/L)×100
L :つかみ間隔(mm)
L1:100Nまで伸ばした時の変位(mm)
織物帯に用いる織物に対して、50mm×300mmの試験片を経、緯方向にそれぞれ5枚ずつ採取した。自動記録装置付定速伸長形引張試験機を用い、つかみ間隔を200mmとし、試験片のたるみや張力を除いてつかみに固定した。引張速度200mm/分で150Nまで伸ばし、測定を実施して得た荷重変形曲線に基づき、20Nの時の変位を測り、次の式により伸長率LA(%)を求め、5枚の平均で表した。
伸長率LA(%)=(La1/La)×100
La :つかみ間隔(mm)
La1:20Nまで伸ばした時の変位(mm)
織物帯Bに用いる織物に対して、50mm×300mmの試験片を経、緯方向にそれぞれ5枚ずつ採取した。自動記録装置付定速伸長形引張試験機を用い、つかみ間隔を200m(Lb)として印を付け、試験片のたるみや張力を除いてつかみに固定した。
伸長変化率LB(%)=[(Lb2-Lb1)/Lb]×100
織物帯Bに用いる織物に対して、50mm×300mmの試験片を経、緯方向にそれぞれ5枚ずつ採取した。自動記録装置付定速伸長形引張試験機を用い、つかみ間隔を200mmとし、試験片のたるみや張力を除いてつかみに固定した。引張速度200mm/分で150Nまで伸ばし、測定を実施して得た荷重変形曲線に基づき、50Nの時の変位を測り、次の式により伸長率LC(%)を求め、5枚の平均で表した。
伸長率LC(%)=[(Lc1-Lc)/Lc]×100
Lc :つかみ間隔(mm)
Lc1:50Nまで伸ばした時の変位(mm)
50mm×300mmの試験片を経、緯方向にそれぞれ5枚ずつ採取した。自動記録装置付定速伸長形引張試験機を用い、つかみ間隔を200m(Ld)として印を付け、試験片のたるみや張力を除いて、つかみに固定した。引張速度200mm/分で100Nまで伸ばして、1分放置した後、同じ速度で元の位置まで戻し、3分間放置する。この操作を50回繰り返した後、荷重を取り除き、3分間放置した後、試験片のたるみや張力を除いて、印間の長さ(Ld1)を測定し、次式により伸長回復率LD(%)を求め、5枚の平均で表した。
伸長率LD(%)=[Ld-(Ld1-Ld)/Ld]×100
作製した下肢矯正具を矯正が必要な片足に着用する際、織物帯A1と織物帯Bの長手方向の両端接線による中心線のなす角度のうち、90°以下の角度を測定した。
作製した下肢矯正具を矯正が必要な片足に着用する際、織物帯Bと織物帯Cの長手方向の両端接線による中心線のなす角度のうち、90°以下の角度を測定した。
作製した下肢矯正具を矯正が必要な片足に着用して、1時間歩行した状態で、背屈矯正、内返し矯正、矯正力、圧迫感、擦れの5項目を評価した。背屈矯正、内返し矯正は着用者の歩行状態を観察することで評価し、矯正力、圧迫感、擦れの評価は着用者による官能評価で実施し、◎、〇、×の3段階で評価した。
A.背屈矯正
◎:歩行遊脚期中、足が背屈し、着地際に踵が足先より先に地面につくように歩く。
〇:歩行遊脚期中、足が背屈し、着地際に踵と足先が同時に地面につくように歩く。
×:歩行遊脚期中、足が背屈できなく、着地際に足先が地面に引っかかって歩く。
B.内返し矯正
◎:歩行中に足の内返しがなく、着地際に足底の外縁と内縁とも地面につくように歩く。
〇:歩行中に足の内返しが若干あり、着地際に足底の外縁と内縁とも地面につくように歩く。
×:歩行中に足の内返しが矯正できなくなり、着地際に足底の外縁が地面につくように歩き、歩行が不安定となる。
C.矯正力
◎:矯正された状態が保持され、力を入れた際に、織物帯が若干追従する。
〇:矯正された状態が強く保持され、力を入れても織物帯が変化しない。
×:矯正された状態の保持が弱く、力を入れると織物帯が追従する。
D.圧迫感
◎:歩行中に織物帯が覆う部分で違和感はあるが、気にならない。
〇:歩行中に織物帯が覆う部分で圧迫感を感じるが、痛みはない。
×:歩行中に織物帯が覆う部分で圧迫感を強く感じ、痛みがある。
E.擦れ
◎:歩行中に織物帯の周辺で痛みを感じない。
〇:歩行中に織物帯Bの周辺で痛みは感じないが擦れたような違和感がある。
×:歩行中に織物帯の周辺で肌と擦れて痛みを感じる。
JIS L 1096:2010 8.6.1(A法)に基づき測定した。試料を平らな台上に置き、不自然なしわや張力を除いて、異なる5カ所について1inch(2.54cm)間に存在する経糸および緯糸の本数を数え、それぞれの平均値を算出した。
織物から抜き出した経糸及び緯糸について、JIS L1096:2010 8.7(B法)に準じて実施した。20本の糸について測定し、その平均値で示した。
下肢矯正具の着用時における、織物帯A1およびA2の人体に対する着圧を、それぞれエイエムテクノ社製エアパック式着圧測定器AMI3037-10で測定した。
なお、織物帯A1は膝裏の部分で測定し、織物帯A2は中足骨を含む足甲部で測定した。
レッグウェアに54デシテックスのポリエステル繊維と弾性繊維として156デシテックスのポリウレタン繊維の2種類の繊維を交編したトリコット編地を使用した。
織物帯に用いる織物には、経糸として、非弾性糸である167デシテックスのポリエステル(ポリエチレンテレフタレート)繊維、緯糸として、弾性糸である700デシテックスのポリエステルエラストマー“ハイトレル”(登録商標)モノフィラメントを用いて、経糸密度39本/inch(2.54cm)、緯糸密度43本/inch(2.54cm)の平織物を作製した。得られた織物を180℃の温度で2分間、熱処理を行い、経糸密度45本/inch(2.54cm)、緯糸密度46本/inch(2.54cm)の織物を得た。経糸、緯糸のクリンプ率はそれぞれ20%、3%であった。
下肢矯正具の装着時における前記織物帯A1と前記織物帯Bとの内角度を65°に調整した以外は実施例1と同様にソックスタイプの下肢矯正具を用いた。
下肢矯正具の装着時における前記織物帯A1と前記織物帯Bとの内角度を85°に調整した以外は実施例1と同様にソックスタイプの下肢矯正具を用いた。
前記得られた織物の経方向を織物帯の長手方向として設定し、それ以外は実施例1と同様にソックスタイプの下肢矯正具を用いた。織物の長手方向の荷重50N/5cm時の伸長率が1.7%であって、該荷重における伸長と復元を1000回繰り返した後、織物の長手方向の伸長変化率が9%であった。
実施例3の下肢矯正具に、前記織物帯Cを加え、前記織物帯Cは、長手方向の一端を前記織物帯A2と連結した。連結箇所は前記織物帯A2の第1中足骨を含む足部付近とした。前記織物帯Cはこの第1中足骨を含む足部を覆い、足底内側から外側にわたして踵の外側からアキレス腱を含む足首部の内側にかけて覆い、脛骨を含む下腿部から膝部にかけて覆うように配置した。前記織物帯Bの脛骨を含む下腿部を覆う部分の一部が前記織物帯Cと交差した。その交差した部分はミシンで連結し、下肢矯正具の装着時における前記織物帯Bと前記織物帯Cとの内角度を45°のように形成して前記織物帯A1と連結した以外は、実施例1と同様にソックスタイプの下肢矯正具を用いた。前記織物帯の長手方向の荷重50N/5cm時の伸長率が1.7%であって、該荷重における伸長と復元を1000回繰り返した後、織物帯の長手方向の伸長変化率が9%であった。
下肢矯正具の前記織物帯Bを図5に示すように2つの部材b1(弾性織帯B(b1)17),b2(弾性織帯B(b2)18)から構成し、部材b1を織物帯A1と連結し、部材b2を織物帯A2と連結するとともに、部材b1、b2両者を連結する際に、b2を引っ張ってb1と固定することにより長さを調節する機構とし、b1とb2を固定する際の固定方法としては、カン19に通して折り返し、面ファスナーで固定する方法とした以外は実施例1と同様の方法で下肢矯正具を作製した。織物帯Bは、装着者が装着後に、立位で踵が接地した状態で、過度な応力がかからない程度の長さに調整し、着用試験を行った。
下肢矯正具の装着時における前記織物帯A1と前記織物帯Bとの内角度を20°に調整した以外は実施例1と同様にソックスタイプの下肢矯正具を用いた。
レッグウェアに54デシテックスのポリエステル(ポリエチレンテレフタレート)繊維と弾性繊維として156デシテックスのポリウレタン繊維の2種類の繊維を交編したトリコット編地を使用した。
レッグウェアに54デシテックスのポリエステル(ポリエチレンテレフタレート)繊維と弾性繊維として156デシテックスのポリウレタン繊維“ライクラ”(登録商標)の2種類の繊維を交編したトリコット編地を使用した。
前記織物帯A1,A2、Bに用いる織物のかわりに市販のゴムバンドを使用したことと、下肢矯正具の装着時における前記織物帯A1代替のゴムバンドと前記織物帯B代替のゴムバンドとの内角度を20°に調整した以外は実施例1と同様のソックスタイプの下肢矯正具を用いた。
織物帯にポリエステルエラストマー“ハイトレル”(登録商標)モノフィラメントを用いたことと、下肢矯正具の装着時における前記織物帯A1と前記織物帯Bとの内角度を20°に調整した以外は実施例1と同様のソックスタイプの下肢矯正具を用いた。
前記織物帯A1の位置を脹脛における最大径の位置に設定した以外は実施例2と同様のソックスタイプの下肢矯正具を用いた。
前記織物帯A1,A2、Bに用いる織物のかわりに市販のゴムバンドを使用したこと以外は実施例1と同様のソックスタイプの下肢矯正具を用いた。
2 織物帯A2
3 織物帯B
4 第1中足骨
5 第5中足骨
6 立方骨
7 踵骨
8 距骨
9 脛骨
10 腓骨
11 下腿部
12 織物帯A1と織物帯Bとの内角度
13 織物帯C
14 織物帯Bと織物帯Cとの内角度
15 織物帯Bの中心線
16 織物帯Cの中心線
17 弾性織帯B(b1)
18 弾性織帯B(b2)
19 カン
Claims (15)
- 下肢矯正具であって、踝を含む足首部の少なくとも一部および/または、膝部の少なくとも一部を覆う織物帯A1、中足骨を含む足部を覆う織物帯A2および少なくとも一つの織物帯Bを含み、前記織物帯Bは、少なくとも一部が第5中足骨または立方骨を含む足部を覆い、前記第5中足骨または立方骨を含む足部から足首部および/または膝部にかけて位置するように配置され、前記織物帯Bの長手方向端部の一方を前記織物帯A1に、もう一方の端部を前記織物帯A2にそれぞれ連結され、前記下肢矯正具の装着時における前記織物帯A1と前記織物帯Bの内角度は30°~90°であり、前記織物帯のうち少なくとも一つが、荷重100N/5cm時の伸長率が、幅方向および長手方向または、そのいずれかの方向で、0.5%以上50%以下である下肢矯正具。
- 前記織物帯Bは長さ調整機構を備えるものである請求項1に記載の下肢矯正具。
- 前記織物帯A1、織物帯A2および織物帯Bを構成する繊維として1種類以上の熱可塑性エラストマー繊維を含む請求項1または2に記載の下肢矯正具。
- 前記織物帯A1、織物帯A2および織物帯Bを構成する繊維としてポリエステル系熱可塑性エラストマー繊維を含む請求項1~3のいずれかに記載の下肢矯正具。
- 前記下肢矯正具がさらに一つ以上の織物帯Cを含み、前記織物帯Cの少なくとも一部が第1中足骨を含む足部を覆うように配置され、前記織物帯Cは、前記第1中足骨を含む足部から足首部および/または膝部にかけて位置するように、前記織物帯Cの長手方向端部の一方を前記織物帯A1に、もう一方の端部を前記織物帯A2に連結してなる請求項1~4のいずれかに記載の下肢矯正具。
- 前記織物帯Bと前記織物帯Cの内角度は30°~80°である請求項5に記載の下肢矯正具。
- 前記織物帯Cを構成する繊維として1種類以上の熱可塑性エラストマー繊維を含む請求項5または6のいずれかに記載の下肢矯正具。
- 前記織物帯Cを構成する繊維としてポリエステル系熱可塑性エラストマー繊維を含む請求項5~7のいずれかに記載の下肢矯正具。
- 前記織物帯A1、A2、B、Cの荷重100N/5cm時伸長率をそれぞれA1E、A2E、BE、CEとするとき、A1E≧CE≧BE、かつA2E≧CE≧BEである請求項5~8のいずれかに記載の下肢矯正具。
- 前記下肢矯正具の装着時における前記織物帯A1およびA2の人体に対する着圧がそれぞれ1hPa~20hPaである請求項1~9のいずれかに記載の下肢矯正具。
- 前記織物帯のうち少なくとも一つが、荷重20N/5cm時の伸長率が、幅方向および長手方向、または、そのいずれかの方向で、0.1%以上10%以下である請求項1~10のいずれかに記載の下肢矯正具。
- 前記織物帯Bの長手方向の荷重50N/5cm時の伸長率が0.5%~15%であり、かつ前記荷重における伸長と復元を1000回繰り返した後、織物帯Bの長手方向の伸長変化率が20%以下である請求項1~11のいずれかに記載の下肢矯正具。
- 前記織物帯のうち少なくとも一つが、長手方向の荷重100N/5cmにおける50回伸長後の伸長回復率が、長手方向および幅方向、または、そのいずれかの方向で80%~100%である請求項1~12のいずれかに記載の下肢矯正具。
- 前記下肢矯正具は少なくとも膝から足部まで覆うレッグウェアと一体的に形成され、着用時に開閉可能な機構を備えている請求項1~13のいずれかに記載の下肢矯正具
- 前記下肢矯正具は尖足矯正用および下垂足矯正用から選択される用途に用いられるものである請求項1~14のいずれかに記載の下肢矯正具。
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EP21778769.6A EP4129262A1 (en) | 2020-03-31 | 2021-02-01 | Lower-limb orthotic device |
US17/912,923 US20230149197A1 (en) | 2020-03-31 | 2021-02-01 | Lower-limb orthotic device |
AU2021249727A AU2021249727A1 (en) | 2020-03-31 | 2021-02-01 | Lower-limb orthotic device |
KR1020227032201A KR20220160569A (ko) | 2020-03-31 | 2021-02-01 | 하지 교정구 |
JP2021521437A JP7420139B2 (ja) | 2020-03-31 | 2021-02-01 | 下肢矯正具 |
CA3176925A CA3176925A1 (en) | 2020-03-31 | 2021-02-01 | Lower-limb orthotic device |
CN202180023627.7A CN115335022A (zh) | 2020-03-31 | 2021-02-01 | 下肢矫正器具 |
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EP (1) | EP4129262A1 (ja) |
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Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09313553A (ja) | 1996-05-27 | 1997-12-09 | Hiroshi Okumura | 足の矯正用装具 |
US20030204157A1 (en) * | 2002-04-29 | 2003-10-30 | Cropper Dean E. | Ankle control system |
JP2005028025A (ja) * | 2003-07-11 | 2005-02-03 | Nitto Denko Corp | 膝部用粘着部材 |
WO2015133479A1 (ja) * | 2014-03-03 | 2015-09-11 | 興和株式会社 | 膝サポーター及び膝関節のサポート方法 |
WO2019159281A1 (ja) * | 2018-02-15 | 2019-08-22 | 紀臣 角田 | 踵足首サポーター |
-
2021
- 2021-02-01 WO PCT/JP2021/003534 patent/WO2021199648A1/ja unknown
- 2021-02-01 CA CA3176925A patent/CA3176925A1/en active Pending
- 2021-02-01 JP JP2021521437A patent/JP7420139B2/ja active Active
- 2021-02-01 US US17/912,923 patent/US20230149197A1/en active Pending
- 2021-02-01 AU AU2021249727A patent/AU2021249727A1/en active Pending
- 2021-02-01 EP EP21778769.6A patent/EP4129262A1/en active Pending
- 2021-02-01 CN CN202180023627.7A patent/CN115335022A/zh active Pending
- 2021-02-01 KR KR1020227032201A patent/KR20220160569A/ko unknown
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH09313553A (ja) | 1996-05-27 | 1997-12-09 | Hiroshi Okumura | 足の矯正用装具 |
US20030204157A1 (en) * | 2002-04-29 | 2003-10-30 | Cropper Dean E. | Ankle control system |
JP2005028025A (ja) * | 2003-07-11 | 2005-02-03 | Nitto Denko Corp | 膝部用粘着部材 |
WO2015133479A1 (ja) * | 2014-03-03 | 2015-09-11 | 興和株式会社 | 膝サポーター及び膝関節のサポート方法 |
WO2019159281A1 (ja) * | 2018-02-15 | 2019-08-22 | 紀臣 角田 | 踵足首サポーター |
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AU2021249727A1 (en) | 2022-11-17 |
JP7420139B2 (ja) | 2024-01-23 |
JPWO2021199648A1 (ja) | 2021-10-07 |
US20230149197A1 (en) | 2023-05-18 |
KR20220160569A (ko) | 2022-12-06 |
EP4129262A1 (en) | 2023-02-08 |
CA3176925A1 (en) | 2021-10-07 |
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