CN107485476B - Foot axis trimming type drop foot rehabilitation orthoses - Google Patents
Foot axis trimming type drop foot rehabilitation orthoses Download PDFInfo
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- CN107485476B CN107485476B CN201710858750.6A CN201710858750A CN107485476B CN 107485476 B CN107485476 B CN 107485476B CN 201710858750 A CN201710858750 A CN 201710858750A CN 107485476 B CN107485476 B CN 107485476B
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- foot
- leg
- footrest
- fixation kit
- support bar
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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
- 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 present invention discloses a kind of foot axis trimming type drop foot rehabilitation orthoses, it include: the foot fixation kit for fixing foot, for fixing the leg fixation kit of calf, foot fixation kit includes footrest, the footrest includes front foot portion, back foot part, and front foot portion is connect with back foot part by length-adjustable medial and lateral connecting rod；Leg fixation kit includes leg support bar, and footrest is connected with leg support bar by elastic component, and the two can be rotated towards each other by the effect of elastic force；Further include control unit, rotated for controlling foot fixation kit by a draw-off mechanism relative to leg fixation kit, so that foot fixation kit opposed legs fixation kit is located at original state, dorsi-flexed state, toe and bends one of state.Forward and backward sufficient axial direction is adjusted to line and rotational angle in the present invention, adapts to different patients' wearings, can carry out correction rehabilitation training to related foot affliction.
Description
Technical field
The present invention relates to a kind of drop foot device for healing and training, more particularly to a kind of foot axis trimming type drop foot health
Multiple orthoses.
Background technique
Drop foot is one of Orthopeadic Surgery sign, refers to foot and dangles naturally, be in plantar flexion state, cannot active dorsiflex with
It is inside and outside to turn over.Drop foot rehabilitation orthoses is to treat a kind of effective means and accessory of drop foot, fixation and work by auxiliary
So that foot and shank is showed back song, to constantly stimulate, promotes the rehabilitation of corresponding disease.
Currently, drop foot orthoses is broadly divided into following three kinds:
The first is traditional footrest, and entirety is made of resin and plastic or Carbon fibe, can make foot and shank always
It is maintained close to orthogonal position, in use, only needing orthosis into shoes.This footrest structure is simple, can
Use when walking, practicability is stronger, but since foot and shank angle are fixed, people walk rehabilitation when, can not carry out further
Foot carry on the back it is bent.Part footrest, by the deformation of material and shape, can be realized certain amplitude in the junction of foot and shank
Back it is bent, but because deformation size is limited so carry on the back bent limited angle, and there are individual differences by patient, are unable to reach satisfied health
Multiple junction fruit.
Second is elastic stretching band, and such as application No. is 201080006062.3 patent applications to disclose a kind of ankle-joint
Bandage passes through elastic fabric, passive drawing foot, to be at dorsi-flexed state.This stretching band structure is simple, convenient for taking
Band can penetrate in shoes and assist patient's walking, but since foot and shank are in drawing stress always, and when toe song is very tired
Difficulty, it is totally unfavorable for long-time Walking.
The third is rehabilitation orthoses, and by complicated structure, the back song or the instruction of rehabilitation accordingly of foot may be implemented
Practice.According to different use states, rehabilitation orthoses is divided into two kinds of running type of muscle-setting exercise type and auxiliary, wherein muscle-setting exercise
Type rehabilitation orthoses refers to that people carries out the device for healing and training of drop foot rehabilitation training under static state, such as application No. is
201210505294.4, device for healing and training disclosed in 201310014261.4,201310421566.7 patent application, this
Class device is suitable for hospital or rehabilitation institution, carries out clinical rehabilitation treatment to individual with drop foot, and general sitting posture uses, volume compared with
Greatly, it controls more complex；Assisting running type rehabilitation orthoses is to make individual with drop foot in machine dermoskeleton using anthropomorphic robot technology
The device for healing and training that foot back is bent and toe is bent is carried out under the drive of bone, such as application No. is 201210564248.1,
Device for healing and training disclosed in 201310026925.9,201410251985.5 patent application, this device can realize with
The similar motion profile of human body, but price is costly.
In conclusion at present existing several orthoses can rehabilitation training to individual with drop foot and auxiliary walking play
Certain effect, but have the disadvantage in that on the one hand, foot state can not be automatically adjusted according to the walking states of people；It is another
Sole is designed to an entirety, does not consider that human foot is made of forward and backward foot, and there are multiple fortune between forward and backward foot by aspect
Dynamic freedom degree, individual with drop foot often with front foot and uneven metapedes axis the problems such as, in this way in drawing, walking, rehabilitation training
During, it not can guarantee the foot state of normal person, be unfavorable for the treatment of related disease.
Summary of the invention
In view of the foregoing, the purpose of the present invention is to provide a kind of foot axis trimming type drop foot rehabilitation orthoses,
Footrest is formed by connecting with back foot part by the connecting rod of adjustable in length by front foot portion, be adjusted it is forward and backward it is sufficient it is axial to line and
Rotational angle adapts to different patient's wearings, can carry out correction rehabilitation training to related foot affliction.
To achieve the above object, the invention adopts the following technical scheme:
A kind of foot axis trimming type drop foot rehabilitation orthoses, comprising:
For fixing the foot fixation kit of foot,
The foot fixation kit includes footrest,
The footrest includes front foot portion, back foot part, and front foot portion is connect with back foot part by length-adjustable connecting rod.
The foot axis trimming type drop foot rehabilitation orthoses, further includes the leg fixation kit for fixing calf,
The leg fixation kit includes leg support bar, and the footrest is connected with the leg support bar by elastic component, and the two is by bullet
The effect of property power can rotate towards each other.
The front foot portion is connected with back foot part by medial and lateral connecting rod, and the length of medial and lateral connecting rod is adjusted separately,
The relative axis angle and rotational angle of adjustable front and back foot, to adapt to the patient of different syndromes.
The foot axis trimming type drop foot rehabilitation orthoses, further includes draw-off mechanism, which includes rope sheave, cunning
Wheel, rope part, the rope sheave are set to the bottom that the footrest corresponds to front foot position, and pulley is set to the footrest rear end, the rope part one end
It is fixed on the leg fixation kit, the other end is connected by the pulley with rope sheave, and the rope sheave is by a driving motor
It drives and can be rotated, can adjust the relative position of the footrest and leg support bar.
The foot axis trimming type drop foot rehabilitation orthoses, further includes control unit, by controlling the driving motor
Rotation drives the rope sheave to rotate so that the foot fixation kit opposed legs fixation kit be located at original state, carry on the back it is curved
State, toe bend one of state state.
Described control unit includes main control chip, front foot pressure sensor, metapedes pressure sensor, front foot pressure sensor
The position of front foot is corresponded in the footrest, metapedes pressure sensor is set in the footrest position for corresponding to metapedes, front foot
Pressure sensor, the signal output end of metapedes pressure sensor are connected with the data input pin of main control chip, main control chip
Control signal output is connected with the control terminal of the driving motor.
Described control unit further includes angular transducer, which is set to the footrest and leg support bar
It is rotatablely connected position, the signal output end of the angular transducer is connected with the data input pin of the main control chip, the angle
Sensor carries on the back bent angle, toe angle in the wrong for sensing.
The leg fixation kit includes leg butt, and leg butt and the leg support bar are hinged, and the rope part is solid
Due on the leg butt.
Induction insole is equipped at the top of the footrest, the position that toe is corresponded on the induction insole is arranged the front foot pressure and passes
The metapedes pressure sensor is arranged in the position of sensor, corresponding heel.
The footrest further includes the front foot fixing belt and metapedes fixing belt being fixedly connected with the footrest, and the leg is fixed
Component further includes leg fixing belt, leg lining, and leg fixing belt is fixedly connected with the leg support bar, leg lining and the leg branch
Strut is hinged, can carry out part fine tuning according to patient legs' state, improve the followability of leg and orthoses.
The invention has the advantages that
1, drop foot rehabilitation orthoses of the invention, footrest are connect with back foot part by adjustable connecting rod by front foot portion
It forms, forward and backward sufficient axis can realize alignment and rotation, related disorder patients can be assisted to rectify by the adjusting of connecting rod
Positive rehabilitation training；
2, drop foot rehabilitation orthoses of the invention, can according to the walking states of people, by control unit and draw-off mechanism,
Automatic adjustment foot is converted between dorsi-flexed state and toe bend state；
3, drop foot rehabilitation orthoses of the invention, the back for detecting foot by angular transducer is bent, toe bends angle, guarantees
Foot movement is within the scope of normal safety；
4, drop foot rehabilitation orthoses of the invention, draw-off mechanism drive pulling rope come real by the driving motor of foot bottom
It is existing, the effect of human foot heel string can be imitated；
5, drop foot rehabilitation orthoses of the invention, footrest correspond to forward and backward sufficient position and are respectively provided with fixing belt, Ke Yifen
It is other that forward and backward foot is fixed, and adjustable tightness；
6, drop foot rehabilitation orthoses of the invention, leg fixation kit include plastic leg lining and metal support
Frame, plastic leg lining can contact for leg provides comfortable interface, and metal bracket can provide stable mechanical support；
7, drop foot rehabilitation orthoses of the invention, after metal bracket includes medial and lateral support rod and upper and lower part
Support can provide enough support forces for leg, and can improve leg and orthoses according to the leg state flexible modulation of patient
Followability.
8, drop foot rehabilitation orthoses of the invention, structure is simple, and the comparable dimensions with shoes can be dressed flexibly, for foot
Sagging patient provides walking power-assisted, and auxiliary carries out foot rehabilitation training.
Detailed description of the invention
Fig. 1 is the overall structure diagram of orthoses of the invention.
Fig. 2 is orthoses of the invention in the overall structure diagram at another visual angle, shows the draw-off mechanism of footrest bottom.
Fig. 3 is the schematic diagram that orthoses of the invention adjusts between original state and dorsi-flexed state.
Fig. 4 is the floor map of induction insole of the invention.
Fig. 5 is the top view that front foot portion of the invention is connect with back foot part.
Fig. 6 is the structural block diagram of control unit of the invention.
Fig. 7 is cannot to carry on the back bent foot and the foot is pulled to be returned to entopic schematic diagram.
Fig. 8 is the schematic diagram of human body travel condition.
Specific embodiment
Below in conjunction with drawings and examples, the present invention will be further described in detail.
As shown in figures 1 to 6, foot axis trimming type drop foot rehabilitation orthoses disclosed by the invention, including the fixed group of foot
Part, leg fixation kit, draw-off mechanism, control unit.
As shown in Fig. 1,2,5, foot fixation kit includes footrest 1, and the position that human body front foot is corresponded in footrest 1 is equipped with front foot
The position of fixing belt 15, corresponding human body metapedes is equipped with metapedes fixing belt 16.Footrest 1 includes front foot portion 11 and back foot part 12, front foot
Portion 11 is corresponding with the position of human body front foot, and back foot part 12 is corresponding with the position of human body metapedes, and front foot portion 11 passes through with back foot part 12
Adjustable connecting rod is connected, and specifically, front foot portion 11 is connect with the outside of back foot part 12 by outer lateral connector bar 13, preceding
Foot 11 is connect with the inside of back foot part 12 by interior lateral connector bar 14, and the length of outer lateral connector bar 13 and interior lateral connector bar 14
Adjustable, by adjusting the length (while adjusting or adjust one of them) of two connecting rods, adjustable forward and backward sufficient axial direction is right
Line and rotational angle, are dressed in order to adapt to different patients, carry out correction rehabilitation training to related foot affliction.
As shown in Fig. 1,4,1 top of footrest (part of human foot contact) is equipped with induction insole 2, and it is right on insole 2 to incude
It answers the position of human body toe to be equipped with front foot pressure sensor 21, incudes the position for corresponding to human body heel on insole 2 equipped with metapedes pressure
Force snesor 22.
Leg fixation kit include leg support bar 3 (including lateral branch strut, medial support bar), top butt 41, under
Portion's butt 42, leg fixing belt 5 (including top, lower part fixing belt), plastic leg lining 6.The lower end of leg support bar 3 and foot
Support 1 is connected close to the position of heel by elastic component (e.g., torsional spring), under the action of no external force, leg support bar 3 and footrest 1
Between under the action of elastic-restoring force, can rotate towards each other and close to each other.Top butt 41, lower part butt 42,6 difference of leg lining
It is connected by a hinge with leg support bar 3, leg fixing belt 5 is fixedly connected by screw with leg support bar 3.
Draw-off mechanism 7 includes rope sheave 71, pulley 72, tightrope 73, driving motor 74, and rope sheave 71 and driving motor 74 are fixed on
For 1 bottom of footrest close to the position of human body front foot, pulley 72 is fixed on 1 rear end of footrest, the power end and rope sheave 71 of driving motor 74
It is connected, lower part butt 42 is fixed in 73 one end of tightrope, and the other end is connected on rope sheave 71 by pulley 72.
Control unit includes main control chip, angular transducer, front foot pressure sensor 21, metapedes pressure sensor 22, leg
Angular transducer 8, angular transducer 8, front foot pressure sensor 21, metapedes pressure is arranged in portion's support rod 3 and the link position of footrest 1
The signal output end of force snesor 22 is connected with the data input pin of main control chip respectively, the control signal output of main control chip
End is connected with the control terminal of driving motor 74.
The working principle of foot axis trimming type drop foot rehabilitation orthoses of the invention is:
In conjunction with Fig. 7, bent individual with drop foot, after dressing orthoses of the invention, footrest 1 and leg cannot be carried on the back for foot
By the effect of elastic-restoring force between support rod 3, foot is brought up to normal position (original state), it is reachable further up
To dorsi-flexed state.
In conjunction with Fig. 8, by taking right foot as an example.When metapedes and ground face contact, metapedes pressure sensor senses metapedes pressure letter
Number, metapedes pressure signal is transmitted to main control chip, main control chip is controlling driving motor 74 just according to the metapedes pressure signal
Turn, driving motor 74 rotates forward, and rope sheave 71 is driven to rotate forward, and tightrope 73 reduces the pulling force of footrest 1, and footrest 1 is in elastic-restoring force
It is mobile to leg support bar 3 under effect, so that foot carries out back Qu Yundong.In the rotation process of 1 opposed legs support rod 3 of footrest
In, angular transducer 8 detects the back song angle signal between footrest 1 and leg support bar 3, will carry on the back bent angle signal and is transmitted to master
Chip is controlled, main control chip will be carried on the back bent angle signal and is compared with the bent angle threshold of preset back, reach when carrying on the back bent angle signal
When preset back song angle threshold, main control chip, which controls driving motor 74, to be stopped rotating forward, so that footrest 1 and leg support bar 3 are not
It rotates towards each other again, prevents from carrying on the back the normal range value that bent angle is more than human body.
When front foot and ground face contact, front foot pressure sensor senses front foot pressure signal, front foot pressure signal is transmitted
To main control chip, main control chip controls driving motor 74 and inverts according to the front foot pressure signal, and driving motor 74 inverts, and drives
Rope sheave 71 inverts, and tightrope 73 increases the pulling force of footrest 1, and footrest 1 overcomes the effect of elastic-restoring force to far from leg support bar 3
Direction it is mobile so that foot, which carries out toe, bends movement.In the rotation process of 1 opposed legs support rod 3 of footrest, angular transducer
Toe between 8 detection footrests 1 and leg support bar 3 bends angle signal, and toe is bent angle signal and is transmitted to main control chip, master control core
Toe is bent angle signal and is compared with preset toe angle threshold in the wrong by piece, bends angle signal when toe and reaches preset toe angle in the wrong
When threshold value, main control chip controls driving motor 74 and stops reversion, so that footrest 1 is no longer rotated towards each other with leg support bar 3, prevents
Toe bends the normal range value that angle is more than human body.
When foot is not contacted with ground, the pressure of front foot pressure sensor Yu metapedes pressure sensor is not detected in main control chip
Force signal, main control chip controls driving motor 74 and rotates, so that footrest and leg support bar 3 are located at entopic initial shape
State.
Further, main control chip can pass through respectively control respectively according to the size of front foot pressure signal, metapedes pressure signal
The reversion of driving motor 74 processed rotates forward, and controls and reaches different angular positions between footrest and leg support bar 3, that is, so that foot
Portion is located at different toes and bends angle, dorsiflex angle.
The above is presently preferred embodiments of the present invention and its technical principle used, for those skilled in the art
For, without departing from the spirit and scope of the present invention, any equivalent change based on the basis of technical solution of the present invention
Change, simple replacement etc. is obvious changes, all fall within the protection scope of the present invention.
Claims (7)
1. foot axis trimming type drop foot rehabilitation orthoses characterized by comprising
For fixing the foot fixation kit of foot,
The foot fixation kit includes footrest,
The footrest includes front foot portion, back foot part, and front foot portion is connect with back foot part by length-adjustable connecting rod；
It further include the leg fixation kit for fixing calf, which includes leg support bar, the footrest
It is connected with the leg support bar by elastic component, the two can be rotated towards each other by the effect of elastic force；
The front foot portion is connected with back foot part by medial and lateral connecting rod, and the length of medial and lateral connecting rod is adjusted separately, adjustable
The relative axis angle and rotational angle of whole front and back foot, to adapt to the patient of different syndromes；
It further include draw-off mechanism, which includes rope sheave, pulley, rope part, which is set to the footrest and corresponds to front foot position
The bottom set, pulley are set to the footrest rear end, which is fixed on the leg fixation kit, and the other end is by being somebody's turn to do
Pulley is connected with rope sheave, the rope sheave by a driving motor drive and can be rotated, can adjust the footrest and thigh support
The relative position of bar.
2. foot axis trimming type drop foot rehabilitation orthoses according to claim 1, which is characterized in that further include control
Unit is rotated by controlling the driving motor, the rope sheave is driven to rotate, so that the foot fixation kit opposed legs are solid
Determine component and is located at one of original state, dorsi-flexed state, toe state in the wrong state.
3. foot axis trimming type drop foot rehabilitation orthoses according to claim 2, which is characterized in that the control is single
Member includes main control chip, front foot pressure sensor, metapedes pressure sensor, and front foot pressure sensor is set to corresponding in the footrest
The position of front foot, metapedes pressure sensor are set in the footrest position for corresponding to metapedes, front foot pressure sensor, metapedes pressure
The signal output end of sensor is connected with the data input pin of main control chip, the control signal output of main control chip with it is described
The control terminal of driving motor is connected.
4. foot axis trimming type drop foot rehabilitation orthoses according to claim 3, which is characterized in that the control is single
Member further includes angular transducer, which is set to the rotation connection position of the footrest and leg support bar, the angle
The signal output end of degree sensor is connected with the data input pin of the main control chip, and the angular transducer is bent for sensing back
Angle, toe bend angle.
5. foot axis trimming type drop foot rehabilitation orthoses according to claim 2, which is characterized in that the leg is solid
Determining component includes leg butt, and leg butt and the leg support bar are hinged, and the rope part is fixed on the leg butt.
6. foot axis trimming type drop foot rehabilitation orthoses according to claim 3, which is characterized in that the footrest top
Portion is equipped with induction insole, and the front foot pressure sensor, the position of corresponding heel is arranged in the position that toe is corresponded on the induction insole
Install the metapedes pressure sensor.
7. foot axis trimming type drop foot rehabilitation orthoses according to claim 2, which is characterized in that the footrest is also
Including the front foot fixing belt and metapedes fixing belt being fixedly connected with the footrest, the leg fixation kit further includes that leg is fixed
Band, leg lining, leg fixing belt are fixedly connected with the leg support bar, and leg lining is hinged with the leg support bar, can basis
Patient legs' state carries out part fine tuning, improves the followability of leg and orthoses.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710858750.6A CN107485476B (en) | 2017-09-20 | 2017-09-20 | Foot axis trimming type drop foot rehabilitation orthoses |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710858750.6A CN107485476B (en) | 2017-09-20 | 2017-09-20 | Foot axis trimming type drop foot rehabilitation orthoses |
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| CN107485476B true CN107485476B (en) | 2019-08-16 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108324505A (en) * | 2018-03-26 | 2018-07-27 | 苏州大学 | A kind of drop foot rehabilitation power assisting device |
| CN109394403A (en) * | 2018-12-06 | 2019-03-01 | 川北医学院 | Drop foot rehabilitation orthoses |
| CN109498992A (en) * | 2018-12-25 | 2019-03-22 | 南通市第人民医院 | A kind of multi-functional spasmolysis instrument |
| CN111938889A (en) * | 2020-07-17 | 2020-11-17 | 哈尔滨理工大学 | Powered knee joint orthosis |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7410471B1 (en) * | 1998-09-18 | 2008-08-12 | Becker Orthopedic Appliance Company | Orthosis knee joint and sensor |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101548925B (en) * | 2009-05-05 | 2011-01-05 | 浙江大学 | Gait phase detection apparatus with ankle joint angle self-rectification function |
| CN202288736U (en) * | 2011-10-19 | 2012-07-04 | 汕头大学医学院第一附属医院 | Rehabilitation training device for preventing foot drop |
| CA2771972A1 (en) * | 2012-03-15 | 2013-09-15 | The Governors Of The University Of Alberta | Knee ankle foot orthosis |
| CN204337090U (en) * | 2014-12-25 | 2015-05-20 | 欧传双 | Turn up in a kind of foot day and night orthosis |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7410471B1 (en) * | 1998-09-18 | 2008-08-12 | Becker Orthopedic Appliance Company | Orthosis knee joint and sensor |
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