CN109481114B - Ankle-foot orthosis with adjustable freedom degree for cerebral apoplexy patient - Google Patents
Ankle-foot orthosis with adjustable freedom degree for cerebral apoplexy patient Download PDFInfo
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- CN109481114B CN109481114B CN201811423168.8A CN201811423168A CN109481114B CN 109481114 B CN109481114 B CN 109481114B CN 201811423168 A CN201811423168 A CN 201811423168A CN 109481114 B CN109481114 B CN 109481114B
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- ankle
- sole
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- pin
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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
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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
Abstract
The invention discloses an ankle-foot orthosis with adjustable freedom degree for a cerebral apoplexy patient, which comprises a lower leg mechanism, an ankle mechanism, a sole mechanism and an elastic tension providing mechanism, wherein the lower leg mechanism comprises an upper lower leg and a lower leg which are detachably connected; the ankle mechanism comprises an upper ankle and a lower ankle which are hinged with each other, the upper ankle and the lower calf are limited to rotate in a certain angle and can be positioned at a limit position by the first limiting mechanism, and the upper ankle and the lower ankle are limited to be positioned at the limit position by the second limiting mechanism; the sole mechanism comprises a front sole and a rear sole which are hinged with each other, and the front sole and the rear sole are limited to rotate in a certain angle and can be positioned at a limiting position through a third limiting mechanism; the lower end of the elastic tension providing component of the elastic tension providing mechanism is hinged with the rear sole, and the upper end of the elastic tension providing component is hinged with the lower calf through the adjusting component. The invention has the advantages that: not only can satisfy the fixing and orthopedic functions in the early stage of illness, but also can completely simulate the gait of a normal person in the later stage of rehabilitation training.
Description
Technical Field
The invention relates to the technical field of rehabilitation medical appliances, in particular to an ankle-foot orthosis with adjustable freedom degree for a cerebral apoplexy patient.
Background
The cerebral apoplexy is also called as "apoplexy" and "cerebrovascular accident", and is an acute cerebrovascular disease, which is a group of diseases that cause brain tissue injury due to sudden rupture of cerebral blood vessels or failure of blood to flow into the brain due to vessel blockage. Investigation shows that cerebral apoplexy is the first cause of death in China, is also the primary cause of disability of adults in China, and has the characteristics of high morbidity, high mortality and high disability rate. For cerebral apoplexy patients, the activation of the anterior calf muscle group (anterior tibial muscle) and the lateral muscle group (long short fibula) is insufficient, disuse muscle atrophy occurs to the muscles, so that dorsum extension is difficult, and foot drop is caused, the foot drop is one of the signs of bone surgery, the patient sits down, and the two lower limbs naturally hang down, if the foot is in plantarflexion position and can not actively dorsiflex and turn inwards and outwards at all, the foot drop is caused. Foot drop is caused by paralysis of anterior and lateral muscle groups of the lower leg, and spasticity of the posterior muscle group of the lower leg, and is manifested by inability to dorsiflex the foot, and is disadvantageous for such patients to walk up and down stairs and daily life because the foot drop always comes into contact with the ground at the toe when walking or dragging the diseased foot or lifting the lower limb higher. In recent years, a few related medical research reports indicate that in early treatment, limbs of a cerebral apoplexy patient are kept in functional positions, and the cerebral apoplexy patient is beneficial to preventing the occurrence of adverse complications of the cerebral apoplexy patient.
Ankle-foot orthoses are commonly used to provide protection to a patient's ankle and foot, the primary function being to provide plantar flexion resistance, helping to hold the patient's foot in the correct position as it lifts off the ground. The ankle-foot orthosis in the prior art has single function and inconvenient use, and the whole orthosis has little degree of freedom, and can not completely simulate the gait of a normal person when a patient performs rehabilitation training.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides the ankle-foot orthosis with adjustable freedom degree for a cerebral apoplexy patient, so that the ankle-foot orthosis not only can meet the fixed orthopedic function in the early stage of illness, but also can completely simulate the gait of a normal person in the later stage of rehabilitation training.
The invention is realized by the following technical scheme:
an ankle-foot orthosis with adjustable freedom degree for cerebral apoplexy patients, which comprises a shank mechanism, an ankle mechanism, a sole mechanism and an elastic tension providing mechanism,
the lower leg mechanism comprises an upper lower leg and a lower leg, the upper lower leg and the lower leg are detachably connected through an adjusting part, and the lap joint length of the upper lower leg and the lower leg can be adjusted through the adjusting part, so that the length of the whole lower leg formed by the upper lower leg and the lower leg is adjusted;
the ankle mechanism comprises an upper ankle and a lower ankle which are hinged up and down, the upper end of the upper ankle is hinged with the lower end of the lower calf, the hinge axis between the upper ankle and the lower calf extends along the left-right direction, the upper ankle and the lower calf can be limited to rotate in a certain angle and can be positioned at a limit position through a first limiting mechanism, the hinge axis between the upper ankle and the lower ankle extends along the front-back direction, the upper ankle and the lower ankle are limited to be positioned at the limit position through a second limiting mechanism, and the second limiting mechanism is detachably connected with the upper ankle and the lower ankle;
the sole mechanism comprises a front sole and a rear sole which are hinged in front and back, the left side and the right side of the rear sole are respectively fixedly connected with the lower ends of the corresponding lower ankle, the hinge axis between the front sole and the rear sole extends along the left-right direction, and the front sole and the rear sole are limited to rotate in a certain angle and can be positioned at the limit position through a third limiting mechanism;
the elastic tension providing mechanism comprises two elastic tension providing assemblies, the two elastic tension providing assemblies are respectively positioned on the left side and the right side of the sole mechanism, the lower end of the elastic tension providing assembly is hinged with the rear sole, the upper end of the elastic tension providing assembly is hinged with the lower calf through an adjusting assembly, and the deformation of the elastic tension providing assembly can be adjusted through the adjusting assembly.
Further, the first limiting mechanism comprises an ankle locating pin, an ankle limiting pin and an ankle limiting groove, wherein the ankle limiting groove is arc-shaped and is formed in an upper ankle, the center of the ankle limiting groove is located on the axis of a hinge between the upper ankle and the lower ankle, the ankle locating pin is fixedly arranged on the outer side of the lower calf and stretches into the ankle limiting groove, the ankle limiting pin is detachably arranged on the outer side of the lower calf and stretches into the ankle limiting groove, and when the rotation angle between the upper ankle and the lower calf is zero, the ankle locating pin and the ankle limiting pin are located at two ends of the ankle limiting groove to limit relative rotation of the ankle locating pin and the ankle limiting pin; when the ankle locating pin is removed, the lower calf moves with the ankle locating pin in the ankle locating slot.
Further, the third limiting mechanism comprises a sole locating pin, a sole limiting pin and a sole limiting groove, the sole limiting groove is arc-shaped and is formed in the rear sole, the circle center of the sole limiting groove is just positioned on the hinge axis between the front sole and the rear sole, the sole locating pin is fixedly arranged on the outer side of the front sole and stretches into the sole limiting groove, the sole limiting pin is detachably arranged on the outer side of the front sole and stretches into the sole limiting groove, and the sole locating pin and the sole limiting pin are just positioned at two ends of the sole limiting groove to limit relative rotation of the sole locating pin and the sole limiting pin when the rotation angle between the front sole and the rear sole is zero; when the sole limiting pin is removed, the front sole moves in the sole limiting groove with the sole positioning pin.
Further, the second limiting mechanism is a limiting plate, the limiting plate is located on the outer sides of the upper ankle and the lower ankle, and the upper portion and the lower portion of the limiting plate are detachably connected with the upper ankle and the lower ankle through limiting plate bolts respectively.
Further, the elastic tension provides the subassembly and includes a extension spring, adjusting part includes stud, nut, connecting block, the extension spring upper end is connected with the stud lower extreme, the connecting block is L shape, the connecting block includes first connecting plate and second connecting plate, the first connecting plate upper end of connecting block is articulated with lower shank, the stud with the second connecting plate threaded connection of connecting block to through two nuts with the stud with the second connecting plate locking of connecting block, through the position of adjustment stud on the second connecting plate, thereby the deflection of adjustment extension spring.
Further, the adjusting part comprises a buckle, a plurality of positioning holes are respectively formed in the lower section of the upper shank and the upper section of the lower shank, two inward protruding clamping blocks are arranged on the inner side of the buckle, and the two clamping blocks through the buckle are sequentially clamped into the positioning holes on the upper shank and the lower shank, so that connection between the upper shank and the lower shank is realized.
Further, shank mechanism still includes shank bandage, shank baffle and shank bandage ring, the shank baffle sets up the top rear side at two upper shanks, shank bandage sets up the top front side at two upper shanks, be connected through shank bandage ring respectively between shank bandage and the two upper shanks, the shank bandage is the elastic cord.
Further, sole mechanism still includes preceding sole bandage, preceding sole bandage ring, back sole bandage ring, heel baffle, be connected through preceding sole bandage ring between preceding sole bandage and the preceding sole, be connected through back sole bandage ring between back sole bandage and the back sole, preceding sole bandage and back sole bandage are the elastic cord, the heel baffle sets up in back sole rear side.
Compared with the prior art, the invention has the following advantages:
the ankle-foot orthosis with adjustable freedom degree for cerebral apoplexy patients has various functions, and the calf mechanism can adjust the length so as to adapt to patients with different heights, so that the ankle-foot orthosis has strong universality; the ankle mechanism has two degrees of freedom, the sole mechanism has one degree of freedom, and the three degrees of freedom can be completely limited for fixing and correcting the ankle and can be released to simulate the gait of a normal person; in the elastic tension providing mechanism, the deformation length of the tension spring is adjusted through the adjusting component so as to provide corresponding tension, so that the requirement of different rehabilitation periods or different damage degrees on the tension is met. The ankle and foot corrector has the advantages of complete functions, strong applicability, simple structure, convenient use and remarkable effect.
Drawings
Fig. 1 is a schematic perspective view of the present invention.
Fig. 2 is a schematic view of the ankle mechanism of the present invention.
Fig. 3 is a schematic view showing the structure of the ankle mechanism of the present invention for restoring the degree of freedom after removing the stopper plate and the ankle stopper pin.
Fig. 4 is a schematic structural view of the sole mechanism of the present invention.
Fig. 5 is a schematic view of the sole mechanism of the present invention after removal of the sole limiting pin to restore the degree of freedom.
Fig. 6 is a schematic structural view of the tension spring mechanism of the present invention.
Reference numerals in the drawings: 1 upper calf, 2 calf strap, 3 calf baffle, 4 calf strap ring, 5 buckle, 6 lower calf, 7 tension spring bolt, 8 upper ankle bolt, 9 upper ankle, 10 limiting plate, 11 heel baffle, 12 limiting plate bolt, 13 lower ankle, 14 lower ankle bolt, 15 rear sole, 16 rear sole strap, 17 rear sole strap ring, 18 front sole strap ring, 19 front sole strap, 20 front sole, 21 tension spring, 22 stud, 23 nut, 24 connecting block, 25 ankle limiting pin, 26 ankle locating pin, 27 sole bolt, 28 sole limiting pin, 29 sole locating pin, 30 ankle limiting groove, 31 sole limiting groove.
Detailed Description
The following describes in detail the examples of the present invention, which are implemented on the premise of the technical solution of the present invention, and detailed embodiments and specific operation procedures are given, but the scope of protection of the present invention is not limited to the following examples.
Referring to fig. 1 to 6, the present embodiment discloses an ankle-foot orthosis with adjustable degrees of freedom for a stroke patient, which includes a lower leg mechanism, an ankle mechanism, a sole mechanism, and an elastic tension providing mechanism.
The lower leg mechanism comprises an upper lower leg 1, a lower leg 6, a lower leg strap 2, a lower leg baffle 3 and a lower leg strap ring 4, wherein the upper lower leg 1 and the lower leg 6 are detachably connected through an adjusting part, and the lap joint length of the upper lower leg 1 and the lower leg 6 can be adjusted through the adjusting part, so that the length of the whole lower leg consisting of the upper lower leg 1 and the lower leg 6 is adjusted. The shank baffle 3 sets up the top rear side at two upper shank 1, and shank bandage 2 sets up the top front side at two upper shank 1, connects through shank bandage ring 4 respectively between shank bandage 2 and the two upper shank 1, and shank bandage 2 is the elastic webbing, adjustable elasticity.
Wherein, adjusting part includes buckle 5, and it has a plurality of locating holes to open respectively to go up shank 1 hypomere and lower shank 6 upper segment, and buckle 5 inboard is equipped with two inwards bellied fixture blocks, and the locating hole on last shank 1 and lower shank 6 is blocked in proper order through two fixture blocks of buckle 5 realizes going up the connection between shank 1 and the lower shank 6. The length of the whole calf can be adjusted by selecting positioning holes at different positions.
The ankle mechanism comprises an upper ankle 9 and a lower ankle 13 which are hinged up and down, the upper end of the upper ankle 9 is hinged with the lower end of the lower calf 6 through an upper ankle bolt 8, the hinge axis between the upper ankle 9 and the lower calf 6 extends along the left-right direction, the upper ankle 9 and the lower calf 6 can be limited to rotate in a certain angle and can be positioned at a limiting position through a first limiting mechanism, the upper ankle 9 and the lower ankle 13 are hinged through a lower ankle bolt 14, the hinge axis between the upper ankle 9 and the lower ankle 13 extends along the front-back direction, the upper ankle 9 and the lower ankle 13 are limited to be positioned at the limiting position through a second limiting mechanism, and the second limiting mechanism is detachably connected with the upper ankle 9 and the lower ankle 13.
The first limiting mechanism comprises an ankle positioning pin 26, an ankle limiting pin 25 and an ankle limiting groove 30, wherein the ankle limiting groove 30 is arc-shaped and is opened on the upper ankle 9, the center of the ankle limiting groove 30 is positioned on the axis of the hinge between the upper ankle 9 and the lower ankle 13, the ankle positioning pin 26 is fixedly arranged on the outer side of the lower calf 6 and stretches into the ankle limiting groove 30, the ankle limiting pin 25 is detachably arranged on the outer side of the lower calf 6 and stretches into the ankle limiting groove 30, and when the rotation angle between the upper ankle 9 and the lower calf 6 is zero, the ankle positioning pin 26 and the ankle limiting pin 25 are positioned at two ends of the ankle limiting groove 30 to limit relative rotation of the ankle limiting pin and the ankle limiting pin; when the ankle regulating pin 25 is removed, the lower calf 6 moves with the ankle regulating pin 26 in the ankle regulating groove 30.
The second limiting mechanism is a limiting plate 10, the limiting plate 10 is positioned on the outer sides of the upper ankle 9 and the lower ankle 13, and the upper part and the lower part of the limiting plate 10 are detachably connected with the upper ankle 9 and the lower ankle 13 respectively through limiting plate bolts 12.
The sole mechanism comprises a front sole 20, a rear sole 15, a front sole binding belt 19, a front sole binding belt ring 18, a rear sole binding belt 16, a rear sole binding belt ring 17 and a heel baffle 11, wherein the left side and the right side of the rear sole 15 are respectively fixedly connected with the lower end of the corresponding lower ankle 13, the front sole 20 and the rear sole 15 are hinged through sole bolts 27, the hinge axis between the front sole 20 and the rear sole 15 extends along the left-right direction, and the front sole 20 and the rear sole 15 can be limited to rotate in a certain angle and can be positioned at a limiting position through a third limiting mechanism. The front sole binding band 19 is connected with the front sole 20 through a front sole binding band ring 18, the rear sole binding band 16 is connected with the rear sole 15 through a rear sole binding band ring 17, and the front sole binding band 19 and the rear sole binding band 16 are elastic bands, so that the tightness can be adjusted. A heel plate 11 is provided at the rear side of the rear sole 15 for restricting the position of the heel of the shoe.
The third limiting mechanism and the first limiting mechanism are similar in structural composition. The third limiting mechanism comprises a sole locating pin 29, a sole limiting pin 28 and a sole limiting groove 31, wherein the sole limiting groove 31 is arc-shaped and is formed in the rear sole 15, the circle center of the sole limiting groove 31 is just positioned on the hinge axis between the front sole 20 and the rear sole 15, the sole locating pin 29 is fixedly arranged on the outer side of the front sole 20 and extends into the sole limiting groove 31, the sole limiting pin 28 is detachably arranged on the outer side of the front sole 20 and extends into the sole limiting groove 31, and when the rotation angle between the front sole 20 and the rear sole 15 is zero, the sole locating pin 29 and the sole limiting pin 28 are just positioned at the two ends of the sole limiting groove 31 so as to limit the relative rotation of the two; when the ball limiting pin 28 is removed, the forefoot 20 moves with the ball limiting pin 29 in the ball limiting groove 31.
The elastic tension providing mechanism comprises two elastic tension providing assemblies, the two elastic tension providing assemblies are respectively positioned on the left side and the right side of the sole mechanism, the lower end of each elastic tension providing assembly is hinged with the rear sole 15, the upper end of each elastic tension providing assembly is hinged with the lower calf 6 through an adjusting assembly, and the deformation of each elastic tension providing assembly can be adjusted through the adjusting assembly. The elastic tension providing assembly comprises a tension spring 21, the adjusting assembly comprises a stud 22, a nut 23 and a connecting block 24, the upper end of the tension spring 21 is connected with the lower end of the stud 22, the connecting block 24 is L-shaped, the connecting block 24 comprises a first connecting plate and a second connecting plate, the upper end of the first connecting plate of the connecting block 24 is hinged with the lower calf 6 through the tension spring bolt 7, the stud 22 is in threaded connection with the second connecting plate of the connecting block 24, the stud 22 is locked with the second connecting plate of the connecting block 24 through the two nuts 23, and the deformation of the tension spring 21 is adjusted by adjusting the position of the stud 22 on the second connecting plate.
Referring to fig. 1, 2 and 4, when the patient needs to fix and correct the ankle in early stage of illness, the ankle limit pin 25, the sole limit pin 28 and the limit plate 10 are all installed, at this time, three degrees of freedom in the ankle mechanism and the sole mechanism are limited, and the whole ankle-foot orthosis can be regarded as a rigid body and is fixedly connected with the shank of the patient, so that the purpose of fixing and correcting is achieved.
Referring to fig. 3 and 5, when a patient performs rehabilitation training, the limitation of three degrees of freedom of the ankle mechanism and the sole mechanism is released, namely, the ankle limiting pin 25, the sole limiting pin 28 and the limiting plate 10 are removed, so that the ankle foot orthosis can have the activity function of the ankle of a normal person, meanwhile, the ankle limiting groove 30 on the ankle positioning pin 26 and the upper ankle 9 cooperate to limit the relative rotation direction and angle of the upper ankle 9 and the lower ankle 13, the sole limiting pin 29 cooperates with the sole limiting groove 31 on the sole 15 to limit the relative rotation direction and angle of the sole 15 and the sole 20, and the ankle foot orthosis can prevent injuries to the ankle of the patient when accidents such as falling and the like occur.
Referring to fig. 6, when a patient performs rehabilitation training, according to different rehabilitation periods or different damage degrees, the stud 22 can be controlled to move up and down along the connecting block 24 by adjusting the positions of the two nuts 23, so that the deformation length of the tension spring 21 is adjusted to obtain corresponding tension, provide assistance for the patient, and meet the muscle stretching requirement in rehabilitation exercise of the patient.
The foregoing description of the preferred embodiments of the invention is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the invention.
Claims (8)
1. An ankle-foot orthosis with adjustable degrees of freedom for stroke patients, characterized in that: the ankle-foot orthosis comprises a shank mechanism, an ankle mechanism, a sole mechanism and an elastic tension providing mechanism,
the lower leg mechanism comprises an upper lower leg (1) and a lower leg (6), wherein the upper lower leg (1) and the lower leg (6) are detachably connected through an adjusting part, and the lap joint length of the upper lower leg (1) and the lower leg (6) can be adjusted through the adjusting part, so that the length of the whole lower leg consisting of the upper lower leg (1) and the lower leg (6) is adjusted;
the ankle mechanism comprises an upper ankle (9) and a lower ankle (13) which are hinged up and down, wherein the upper end of the upper ankle (9) is hinged with the lower end of the lower shank (6), the hinge axis between the upper ankle (9) and the lower shank (6) extends along the left-right direction, the upper ankle (9) and the lower shank (6) can be limited to rotate in a certain angle and can be positioned at a limit position through a first limiting mechanism, the hinge axis between the upper ankle (9) and the lower ankle (13) extends along the front-back direction, the upper ankle (9) and the lower ankle (13) are limited to be positioned at the limit position through a second limiting mechanism, and the second limiting mechanism is detachably connected with the upper ankle (9) and the lower ankle (13);
the sole mechanism comprises a front sole (20) and a rear sole (15) which are hinged in front and back, the left side and the right side of the rear sole (15) are respectively fixedly connected with the lower ends of the corresponding lower ankle (13), the hinge axis between the front sole (20) and the rear sole (15) extends along the left-right direction, and the front sole (20) and the rear sole (15) are limited to rotate in a certain angle and can be positioned in a limiting position through a third limiting mechanism;
the elastic tension providing mechanism comprises two elastic tension providing assemblies, the two elastic tension providing assemblies are respectively positioned on the left side and the right side of the sole mechanism, the lower end of the elastic tension providing assembly is hinged with the rear sole (15), the upper end of the elastic tension providing assembly is hinged with the lower calf (6) through an adjusting assembly, and the deformation of the elastic tension providing assembly can be adjusted through the adjusting assembly.
2. An adjustable freedom ankle foot orthosis for a stroke patient according to claim 1, wherein: the first limiting mechanism comprises an ankle positioning pin (26), an ankle limiting pin (25) and an ankle limiting groove (30), wherein the ankle limiting groove (30) is arc-shaped and is formed in the upper ankle (9), the center of the ankle limiting groove (30) is just located on the axis of the hinge between the upper ankle (9) and the lower ankle (13), the ankle positioning pin (26) is fixedly arranged on the outer side of the lower shank (6) and stretches into the ankle limiting groove (30), the ankle limiting pin (25) is detachably arranged on the outer side of the lower shank (6) and stretches into the ankle limiting groove (30), and when the rotation angle between the upper ankle (9) and the lower shank (6) is zero, the ankle positioning pin (26) and the ankle limiting pin (25) are located at two ends of the ankle limiting groove (30) so as to limit relative rotation of the ankle limiting pin and the ankle limiting pin; when the ankle limiting pin (25) is removed, the lower calf (6) moves in the ankle limiting groove (30) with the ankle limiting pin (26).
3. An adjustable freedom ankle foot orthosis for a stroke patient according to claim 1, wherein: the third limiting mechanism comprises a sole locating pin (29), a sole limiting pin (28) and a sole limiting groove (31), wherein the sole limiting groove (31) is arc-shaped and is formed in the rear sole (15), the circle center of the sole limiting groove (31) is just positioned on a hinge axis between the front sole (20) and the rear sole (15), the sole locating pin (29) is fixedly arranged on the outer side of the front sole (20) and stretches into the sole limiting groove (31), the sole limiting pin (28) is detachably arranged on the outer side of the front sole (20) and stretches into the sole limiting groove (31), the rotation angle between the front sole (20) and the rear sole (15) is zero, and the sole locating pin (29) and the sole limiting pin (28) are just positioned at the two ends of the sole limiting groove (31) to limit relative rotation of the front sole and the rear sole limiting groove (20); when the sole limiting pin (28) is removed, the front sole (20) moves in the sole limiting groove (31) with the sole limiting pin (29).
4. An adjustable freedom ankle foot orthosis for a stroke patient according to claim 1, wherein: the second limiting mechanism is a limiting plate (10), the limiting plate (10) is positioned on the outer sides of the upper ankle (9) and the lower ankle (13), and the upper portion and the lower portion of the limiting plate (10) are detachably connected with the upper ankle (9) and the lower ankle (13) through limiting plate bolts (12) respectively.
5. An adjustable freedom ankle foot orthosis for a stroke patient according to claim 1, wherein: the elastic tension provides subassembly and includes a extension spring (21), adjusting part includes stud (22), nut (23), connecting block (24), extension spring (21) upper end is connected with stud (22) lower extreme, connecting block (24) are L shape, connecting block (24) include first connecting plate and second connecting plate, first connecting plate upper end and lower shank (6) of connecting block (24) articulate, stud (22) with the second connecting plate threaded connection of connecting block (24) to lock stud (22) with the second connecting plate of connecting block (24) through two nuts (23), through the position of adjustment stud (22) on the second connecting plate, thereby the deflection of adjustment extension spring (21).
6. An adjustable freedom ankle foot orthosis for a stroke patient according to claim 1, wherein: the adjusting part comprises a buckle (5), a plurality of positioning holes are respectively formed in the lower section of the upper shank (1) and the upper section of the lower shank (6), two inward protruding clamping blocks are arranged on the inner side of the buckle (5), and the two clamping blocks of the buckle (5) are sequentially clamped into the positioning holes of the upper shank (1) and the lower shank (6) to realize connection between the upper shank (1) and the lower shank (6).
7. An adjustable freedom ankle foot orthosis for a stroke patient according to claim 1, wherein: the shank mechanism further comprises shank straps (2), shank baffles (3) and shank strap rings (4), the shank baffles (3) are arranged on the rear sides of the tops of the two upper shanks (1), the shank straps (2) are arranged on the front sides of the tops of the two upper shanks (1), the shank straps (2) are connected with the two upper shanks (1) through the shank strap rings (4) respectively, and the shank straps (2) are elastic bands.
8. An adjustable freedom ankle foot orthosis for a stroke patient according to claim 1, wherein: the sole mechanism further comprises a front sole strap (19), a front sole strap ring (18), a rear sole strap (16), a rear sole strap ring (17) and a heel baffle plate (11), wherein the front sole strap (19) is connected with the front sole (20) through the front sole strap ring (18), the rear sole strap (16) is connected with the rear sole (15) through the rear sole strap ring (17), the front sole strap (19) and the rear sole strap (16) are elastic bands, and the heel baffle plate (11) is arranged at the rear side of the rear sole (15).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811423168.8A CN109481114B (en) | 2018-11-27 | 2018-11-27 | Ankle-foot orthosis with adjustable freedom degree for cerebral apoplexy patient |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811423168.8A CN109481114B (en) | 2018-11-27 | 2018-11-27 | Ankle-foot orthosis with adjustable freedom degree for cerebral apoplexy patient |
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| Publication Number | Publication Date |
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| CN109481114A CN109481114A (en) | 2019-03-19 |
| CN109481114B true CN109481114B (en) | 2023-09-26 |
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| CN201811423168.8A Active CN109481114B (en) | 2018-11-27 | 2018-11-27 | Ankle-foot orthosis with adjustable freedom degree for cerebral apoplexy patient |
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| CN109966040A (en) * | 2019-05-13 | 2019-07-05 | 高学建 | A kind of deformable supporting adn fixing device of orthopaedics |
| CN110314026A (en) * | 2019-08-06 | 2019-10-11 | 解二康 | Elastic assist function orthoses before ankle after a kind of knee |
| CN110292476A (en) * | 2019-08-07 | 2019-10-01 | 李志凤 | Elastic pulling force ankle orthosis and its straightening method before a kind of walk help ankle |
| CN111888072A (en) * | 2020-07-15 | 2020-11-06 | 高志云 | Multifunctional adjustable elastic ankle joint orthosis |
| CN112386381A (en) * | 2020-12-08 | 2021-02-23 | 河南省洛阳正骨医院（河南省骨科医院） | Orthopedic device for resetting and fixing orthopedics department |
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