CN115245414A - Intelligent ankle-foot orthosis and manufacturing method thereof - Google Patents

Intelligent ankle-foot orthosis and manufacturing method thereof Download PDF

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Publication number
CN115245414A
CN115245414A CN202110465157.1A CN202110465157A CN115245414A CN 115245414 A CN115245414 A CN 115245414A CN 202110465157 A CN202110465157 A CN 202110465157A CN 115245414 A CN115245414 A CN 115245414A
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orthosis
foot
dimensional
circuit
main body
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田晓青
李雅玲
马丁逸飞
韩江
夏链
张文义
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Wuhu Aisandi Electronic Technology Co ltd
Hefei University of Technology
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Wuhu Aisandi Electronic Technology Co ltd
Hefei University of Technology
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Priority to CN202110465157.1A priority Critical patent/CN115245414A/en
Publication of CN115245414A publication Critical patent/CN115245414A/en
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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
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/1036—Measuring load distribution, e.g. podologic studies
    • A61B5/1038—Measuring plantar pressure during gait
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00—Measuring for diagnostic purposes; Identification of persons
    • A61B5/103—Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11—Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/36003—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation of motor muscles, e.g. for walking assistance
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/36014—External stimulators, e.g. with patch electrodes
    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61N—ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY
    • A61N1/00—Electrotherapy; Circuits therefor
    • A61N1/18—Applying electric currents by contact electrodes
    • A61N1/32—Applying electric currents by contact electrodes alternating or intermittent currents
    • A61N1/36—Applying electric currents by contact electrodes alternating or intermittent currents for stimulation
    • A61N1/36014—External stimulators, e.g. with patch electrodes
    • A61N1/3603—Control systems
    • A61N1/36031—Control systems using physiological parameters for adjustment
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C64/00—Additive manufacturing, i.e. manufacturing of three-dimensional [3D] objects by additive deposition, additive agglomeration or additive layering, e.g. by 3D printing, stereolithography or selective laser sintering
    • B29C64/30—Auxiliary operations or equipment
    • B29C64/386—Data acquisition or data processing for additive manufacturing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B33—ADDITIVE MANUFACTURING TECHNOLOGY
    • B33Y—ADDITIVE MANUFACTURING, i.e. MANUFACTURING OF THREE-DIMENSIONAL [3-D] OBJECTS BY ADDITIVE DEPOSITION, ADDITIVE AGGLOMERATION OR ADDITIVE LAYERING, e.g. BY 3-D PRINTING, STEREOLITHOGRAPHY OR SELECTIVE LASER SINTERING
    • B33Y50/00—Data acquisition or data processing for additive manufacturing

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  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
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  • Veterinary Medicine (AREA)
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  • Heart & Thoracic Surgery (AREA)
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  • Radiology & Medical Imaging (AREA)
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  • Physiology (AREA)
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  • Dentistry (AREA)
  • Surgery (AREA)
  • Pathology (AREA)
  • Manufacturing & Machinery (AREA)
  • Medical Informatics (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Physical Education & Sports Medicine (AREA)
  • Mechanical Engineering (AREA)
  • Optics & Photonics (AREA)
  • Nursing (AREA)
  • Orthopedic Medicine & Surgery (AREA)
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Abstract

The invention relates to the field of intelligent ankle-foot orthotics, in particular to an intelligent ankle-foot orthotics and a manufacturing method thereof; the intelligent ankle-foot orthosis comprises a pressure sensor, a circuit component box and electrodes and is characterized by further comprising an orthosis main body, a leg fixing part arranged at the upper part of the orthosis main body and a foot fixing part arranged at the lower part of the orthosis main body; a hollow hole is formed in the orthosis main body and is opposite to the shank of the user; the inner side surface of the orthosis main body is provided with a buffer substrate so as to be attached to the lower leg; the leg fixing portion and the foot fixing portion fix the lower leg and the foot, respectively, when the lower leg and the foot are placed on the orthosis body; the leg fixing part on the upper part of the orthosis main body and the foot fixing part arranged on the lower part of the orthosis main body can enable the foot and the lower leg of the orthosis main body user to be connected.

Description

Intelligent ankle-foot orthosis and manufacturing method thereof
Technical Field
The invention relates to the field of intelligent ankle-foot orthotics, in particular to an intelligent ankle-foot orthotics and a manufacturing method thereof.
Background
A3D printing integrally formed ankle-foot orthosis and a manufacturing method thereof are provided in a patent document CN 109998759A. The hole is placed to the outside ankle that this ankle foot orthopedic ware set up, can avoid producing the friction between outside ankle and the ankle foot orthopedic ware, and it is more comfortable to dress, also avoids simultaneously causing foot and ankle foot orthopedic ware to produce the displacement because of the friction, influences the correction effect. The arranged calf muscle group release area can enable the calf muscle group to be arranged in the calf muscle group release area when the ankle-foot orthosis is worn, so that the calf muscle group can be prevented from being completely coated, and the calf muscle group is prevented from rubbing with the ankle-foot orthosis while the calf muscle group is breathable. In addition, the invention also provides a manufacturing method of the ankle-foot orthosis, and the method can be used for customizing and producing the ankle-foot orthosis aiming at the ankle-foot with a specific shape, so that the aims of individual solution, convenience and comfort are fulfilled.
The effect of the above-mentioned patent is, however, currently only to produce an adapted ankle-foot orthosis, which is not known to the current user, nor is it indicative of the situation at the time of use of the user.
Disclosure of Invention
The invention provides an intelligent ankle-foot orthosis and a manufacturing method thereof, aiming at providing feedback for a user.
The invention provides an intelligent ankle-foot orthosis, which comprises a pressure sensor, a circuit element box and electrodes, and is characterized by further comprising an orthosis main body, a leg fixing part arranged at the upper part of the orthosis main body and a foot fixing part arranged at the lower part of the orthosis main body; a hollow hole is formed in the orthosis main body and is opposite to the shank of the user; the inner side surface of the orthosis main body is provided with a buffer substrate so as to be attached to the lower leg; the leg fixing portion and the foot fixing portion fix the lower leg and the foot, respectively, when the lower leg and the foot are placed on the orthosis body.
Further, the intelligent ankle-foot orthosis also comprises a circuit component box arranged on the side surface of the orthosis main body, an electrode arranged on the inner side surface of the orthosis main body and two pressure sensors arranged on the bottom surface of the orthosis main body; the circuit component box 5 is electrically connected with the electrode 7 and the pressure sensor; when the pressure sensor sends pressure data, the circuit element box drives the electrodes to work.
Further, the circuit component box 5 comprises a control module and a driving circuit electrically connected with the control module; the output end of the pressure sensor is electrically connected with the input end of the control module; the input end of the driving circuit is electrically connected with the output end of the control module, and the output end of the driving circuit is electrically connected with the input end of the electrode.
Further, the driving circuit includes a first driving circuit and a second driving circuit; the first driving circuit and the second driving circuit are respectively in one-to-one correspondence with the two input ends of the electrode; when the first driving circuit works, current passes through a human body and then forms a current loop through the second driving circuit; when the second driving circuit works, the current passes through the human body and then forms a current loop through the first driving circuit.
Further, the first driving circuit and the second driving circuit have the same structure; the first driving circuit comprises a first driving sub-circuit, a second driving sub-circuit and a working circuit; the first driving sub-circuit consists of a triode Q1; the second driving sub-circuit consists of a triode Q5; the working circuit consists of a field effect transistor Q8; when the control module sends a working signal to enable the triode Q1 to be conducted, the triode Q5 is driven to be conducted, and therefore the field effect transistor Q8 works.
On the other hand, the invention also provides a manufacturing method of the intelligent ankle-foot orthosis, which comprises the steps of scanning the foot and the lower leg of the human body to obtain a space three-dimensional value; and inputting the space three-dimensional value into a computer to generate a space three-dimensional parameter.
Further, a space three-dimensional coordinate system is established in the three-dimensional software; importing the space three-dimensional parameters and the circuit element box parameters into a space three-dimensional coordinate system, and superposing the circuit element box parameters and the space three-dimensional parameters; and (4) removing the intersection of the space three-dimensional parameters and the circuit element box parameters to obtain three-dimensional processing parameters.
Further, inputting material data of the production material into three-dimensional software, and matching hollow parameters in a database according to the material data; inputting the hollow-out parameters into a space three-dimensional coordinate system, and superposing the hollow-out parameters and the three-dimensional processing parameters; and removing the intersection of the three-dimensional processing parameters and the hollow-out parameters to generate the hollow-out processing parameters.
Further, importing hollow processing parameters into the three-dimensional printing software slice to generate slice data; and inputting the slice data into a 3D printer, and printing the orthosis main body.
The orthopedic device has the beneficial effects that the foot and the lower leg of a user of the orthopedic device main body can be ensured through the leg fixing part at the upper part of the orthopedic device main body and the foot fixing part arranged at the lower part of the orthopedic device main body.
Drawings
The invention is further illustrated with reference to the following figures and examples.
FIG. 1 is a schematic view of a wearing configuration of an intelligent ankle-foot orthosis of the present invention;
fig. 2 is a schematic structural diagram of an orthosis body of the intelligent ankle-foot orthosis of the present invention;
FIG. 3 is a partial cross-sectional view of A of FIG. 2 of the intelligent ankle-foot orthosis of the present invention;
FIG. 4 is a circuit schematic of the drive circuit of the intelligent ankle-foot orthosis of the present invention;
FIG. 5 is a flow chart of a method of making an intelligent ankle-foot orthosis of the present invention;
FIG. 6 is a flow chart of embodiment 3 of the intelligent ankle-foot orthosis of the present invention;
in the figure:
1. an orthosis body; 2. a leg fixing portion; 3. a foot fixing part; 4. a pressure sensor; 5. a circuit element box; 6. hollowing out holes; 7. and an electrode.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
In order to facilitate understanding of the technical solutions of the present application, the related technical problems and technical features in the present application are now explained; in the use process of the ankle-foot orthosis, a user needs to tightly wear the orthosis, so that the orthosis can be attached to the user to achieve the effect of the orthosis; however, foot data and calf data of each person are different, and if a uniform production template is adopted, the orthosis is difficult to fit a user.
Examples
The invention provides an intelligent ankle-foot orthosis, which comprises a pressure sensor 4, a circuit component box 5 and electrodes 7 and is characterized by further comprising an orthosis main body 1, a leg fixing part 2 arranged at the upper part of the orthosis main body 1 and a foot fixing part 3 arranged at the lower part of the orthosis main body 1;
the leg fixing part 2 and the foot fixing part 3 have the same structure, and the leg fixing device comprises elastic cloth and a side-opening buckle arranged at the end part of the elastic cloth; the elastic cloth can be adapted to different users.
A hollow hole 6 is formed in the orthosis main body 1, and the hollow hole 6 is over against the shank of a user; under the condition of meeting the requirement of mechanical property, the manufacturing cost can be reduced, and simultaneously, the requirement of air permeability can be met, so that a user can wear the clothes more comfortably.
The inner side surface of the orthosis body 1 is provided with a buffer substrate so as to be attached to the lower leg; improve user's wearing comfort level.
The leg fixing portion 2 and the foot fixing portion 3 fix the lower leg and the foot, respectively, when the lower leg and the foot are placed on the orthosis body 1.
The intelligent ankle-foot orthosis further comprises a circuit component box 5 arranged on the side surface of the orthosis main body 1, an electrode 7 arranged on the inner side surface of the orthosis main body 1 and two pressure sensors 4 arranged on the bottom surface of the orthosis main body 1; the circuit component box 5 is electrically connected with the electrode 7 and the pressure sensor 4;
the orthosis main body 1 needs real-time detection during design, generally adopts an external scheme in an experimental stage, connects various sensors to a computer, and is not convenient for batch production and use; a mounting blind groove is formed in the side surface of the orthosis main body 1 so as to mount the circuit element box 5; meanwhile, the surface of the orthosis body 1, namely the foot position of the orthosis body 1, is reduced in size and convenient to carry through the installation blind slot and the click blind slot.
The pressure sensors 4 are all arranged on the bottom surface of the foot of the orthosis main body 1 and distributed in the areas with large foot pressure of a human body, namely the areas of the front sole and the heel, and when the orthosis main body is used, the sensors collect pressure data of the sole of a patient in real time and output voltage signals of 0 to 50mV.
Judging the motion state of the current user by comparing the pressure data actually acquired by the two pressure sensors 4, presetting a threshold value for the two pressure sensors 4 in the system respectively, and when the pressure sensor 4 at the sole and the pressure sensor 4 at the heel are close to the preset threshold values, the analysis result is standing; when the difference between any one of the pressure sensor 4 at the front sole or the pressure sensor 4 at the heel and the preset threshold is large, or the difference between the two is large, the analysis result is walking.
The fixation of the circuit component box 5 to the orthosis body 1, the fixation of the pressure sensor 4 to the orthosis body 1 and the fixation of the internal relevant circuitry can be, but is not limited to, the use of a polyurethane adhesive for shoes.
The polyurethane adhesive for shoes has excellent shock resistance and flexibility, and the buffering and shock absorption are very stable.
The electrode 7 is fixed on the inner cavity surface of the orthosis body 1; after the current state of the user is judged, the user needs to be stimulated appropriately to correct the current posture of the user; when the state of the user is a walking state, and the pressure sensor 4 at the foot root has no data, namely the current state is a heel-off walking state, the electrode 7 works to stimulate the peroneal nerve, activate paralyzed tibialis anterior muscles, dorsiflex the ankle and increase the foot eversion force; when the user is standing, the electrode 7 stops working.
The orthosis main body 1 is covered with elastic cloth, so that connecting lines on the orthosis main body 1 can be shielded, meanwhile, the orthosis main body has a buffering effect on a user, and the discomfort caused by collision, friction and long-time contact with skin can be avoided; the inner part of the orthosis body 1 is filled with wave-shaped filling; the conventional straight line filling mode can generate a plurality of sharp corners and increase the manufacturing difficulty, and the wavy filling structure is an ideal filling structure for the bent thin-wall part.
The orthosis main body 1 is made of nylon reinforced carbon fibers, and the nylon reinforced carbon fibers have excellent performance in the aspects of chemical resistance, abrasion resistance and impact resistance, and also have excellent durability and toughness. Simultaneously, the composite material achieves the effect of integrating the advantages of the nylon and the carbon fiber, such as the strength and the rigidity are much higher than those of the non-reinforced nylon, the creep at high temperature is small, the thermal stability is obviously improved, the dimensional precision is good, and the wear resistance and the damping performance are excellent.
The circuit element box 5 comprises a control module and a driving circuit electrically connected with the control module; the output end of the pressure sensor 4 is electrically connected with the input end of the control module; the input end of the driving circuit is electrically connected with the output end of the control module, and the output end of the driving circuit is electrically connected with the input end of the electrode 7.
The control module controls the electrode 7 to work, and automatic processing is realized.
The control module can but not be limited to adopt ardonio Uno development board, can also be main control chip such as singlechip, microprocessor chip.
The driving circuit comprises a first driving circuit and a second driving circuit; the first driving circuit and the second driving circuit are respectively in one-to-one correspondence with the two input ends of the electrode 7; when the first driving circuit works, current passes through a human body and then forms a current loop through the second driving circuit; when the second driving circuit works, the current passes through the human body and then forms a current loop through the first driving circuit.
The direction of the current on the electrode 7 is from A to B or from B to A, and the direction of the current is alternate, so that the stimulation effect on the electrode 7 can be improved.
The first driving circuit and the second driving circuit have the same structure; the first driving circuit comprises a first driving sub-circuit, a second driving sub-circuit and a working circuit; the first driving sub-circuit consists of a triode Q1; the second driving sub-circuit consists of a triode Q5; the working circuit consists of a field effect transistor Q8; when the control module sends a working signal to enable the triode Q1 to be conducted, the triode Q5 is driven to be conducted, and therefore the field effect transistor Q8 works.
When Q5 and Q8 are conducted, Q6 and Q7 are cut off, the current direction is A-human body-B, and a positive stimulation pulse is generated; when Q5 and Q8 are cut off, Q6 and Q7 are conducted, the current direction is B-human body-A, and a reverse stimulation pulse is generated, and Q5, Q8, Q6 and Q7 are conducted in turn.
The triode is driven by the first driving sub-circuit Q1, so that the control circuit and the driving circuit are separated, and the control module is prevented from being filled with large current of the driving circuit so as to burn out the control module.
The field effect transistor Q6 and the field effect transistor Q8 adopt field effect transistors with the type of MOSFET-N;
the triode Q5 and the triode Q7 adopt a type of 9018 triode;
the type of the three-level tube Q1, the three-level tube Q3, the three-level tube Q50 and the three-level tube Q51 is S8050
The triode of (2).
Example 2
On the basis of the embodiment 1, the invention also provides a manufacturing method of the intelligent ankle-foot orthosis, which comprises the steps of scanning the feet and the lower legs of the human body to obtain a space three-dimensional value; and inputting the space three-dimensional value into a computer to generate a space three-dimensional parameter.
The An Sanwei scanner scans point cloud data which cannot be directly used by three-dimensional software and needs to be converted into an accurate digital model and converted into a format recognizable by the three-dimensional software.
Establishing a space three-dimensional coordinate system in the three-dimensional software; importing the digital model into three-dimensional design software to generate space three-dimensional parameters; at the moment, the parameters of the circuit element box are led into a space three-dimensional coordinate system, and the parameters of the circuit element box and the space three-dimensional parameters are superposed; removing the intersection of the space three-dimensional parameters and the circuit element box parameters, namely subtracting the position of the circuit element box from the space three-dimensional parameters, so that the model has a position where the circuit element box can be installed; three-dimensional processing parameters are obtained, and the processed orthosis main body 1 can be provided with a circuit element box.
Inputting material data of a production material into three-dimensional software, and matching hollow parameters in a database according to the material data; the three-dimensional design software is provided with material libraries, each material library has a hollow-out parameter matched with the material library according to the type of the material, so that the manufactured orthopedic device main body 1 can reduce the manufacturing cost under the condition of meeting the requirement of mechanical property, and can also meet the requirement of air permeability at the same time, and a user can wear the orthopedic device better and comfortable.
Inputting the hollow-out parameters into a space three-dimensional coordinate system, and superposing the hollow-out parameters and the three-dimensional processing parameters; and (3) removing the intersection of the three-dimensional processing parameters and the hollowing parameters to generate the hollowing processing parameters.
Importing hollow processing parameters into a three-dimensional printing software slice to generate slice data; the slice data is input to a 3D printer, and the orthosis body 1 is printed.
In summary, the orthosis main body 1 is directly generated by scanning data, which is convenient for the user to use.
Example 3
On the basis of the embodiment 1, the invention also provides a manufacturing method of the intelligent ankle-foot orthosis, which comprises the steps of scanning the feet and the lower legs of the human body to obtain a space three-dimensional value; inputting the space three-dimensional value into a computer to generate a space three-dimensional parameter; importing the spatial three-dimensional data into a modeling program to generate three-dimensional processing parameters; the An Sanwei scanner scans data which is point cloud data, which cannot be directly used by three-dimensional software and needs to be converted into an accurate digital model.
And generating a digital model of the current space three-dimensional value pair by reverse design software, wherein the reverse design software adopts Geomagic Studio software.
Establishing a space three-dimensional coordinate system in a computer; and importing the space three-dimensional value into a three-dimensional coordinate system to generate space three-dimensional parameters.
After the digital model is obtained, the digital model needs to be processed, and data of the digital model is input into three-dimensional software to obtain space three-dimensional parameters in three-dimensional design;
importing model parameters of the intelligent ankle-foot orthosis; generating processing parameters according to the model parameters:
Figure 491162DEST_PATH_IMAGE001
(ii) a When the orthosis body 1 is designed, a standard model is preset in the system to match different users, and the standard model is scaled according to the spatial three-dimensional parameters, so that the produced model meets the design requirements.
Taking foot parameters in the three-dimensional space parameters as actual foot data; taking foot parameters in the model parameters as design foot data; scaling ratio value = (c) ((c))
Figure 877144DEST_PATH_IMAGE002
) (ii) a The actual foot data is the relative length of the foot of the orthosis body 1, and the designed foot parameters are the relative length of the foot in the model parameters, so that the scaling can be accurately obtained.
Inputting the parameters of the circuit element box into three-dimensional software, inputting the production and processing parameters into the three-dimensional software, and combining the parameters of the circuit element box with the production and processing parameters to obtain actual processing parameters.
Inputting actual processing parameters into slicing software, producing slicing processing parameters, and inputting the slicing parameters into a 3D printer printing orthosis main body 1.
In summary, the orthosis body 1 with the matched size is produced by scaling the model parameters, so that the orthosis body is convenient for the user to use.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations will be apparent to those skilled in the art without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims (9)

1. An intelligent ankle-foot orthosis is characterized by comprising a pressure sensor, a circuit component box and electrodes, and further comprising an orthosis main body, a leg fixing part arranged at the upper part of the orthosis main body and a foot fixing part arranged at the lower part of the orthosis main body;
a hollow hole is formed in the orthosis main body and is opposite to the shank of the user;
the inner side surface of the orthosis main body is provided with a buffer substrate so as to be attached to the lower leg;
the leg fixing portion and the foot fixing portion fix the lower leg and the foot, respectively, when the lower leg and the foot are placed on the orthosis body.
2. The intelligent ankle-foot orthosis set forth in claim 1,
the intelligent ankle-foot orthosis also comprises a circuit element box arranged on the side surface of the orthosis main body, an electrode arranged on the inner side surface of the orthosis main body and two pressure sensors arranged on the bottom surface of the orthosis main body;
the circuit component box is electrically connected with the electrode and the pressure sensor;
when the pressure sensor sends pressure data, the circuit element box drives the electrodes to work.
3. The intelligent ankle foot orthosis set forth in claim 2,
the circuit element box comprises a control module and a driving circuit electrically connected with the control module;
the output end of the pressure sensor is electrically connected with the input end of the control module;
the input end of the driving circuit is electrically connected with the output end of the control module, and the output end of the driving circuit is electrically connected with the input end of the electrode.
4. The intelligent ankle-foot orthosis set forth in claim 3,
the driving circuit comprises a first driving circuit and a second driving circuit;
the first driving circuit and the second driving circuit are respectively in one-to-one correspondence with the two input ends of the electrode;
when the first driving circuit works, current passes through a human body and then forms a current loop through the second driving circuit;
when the second driving circuit works, the current passes through the human body and then passes through the first driving circuit to form a current loop.
5. The intelligent ankle-foot orthosis set forth in claim 4,
the first driving circuit and the second driving circuit have the same structure;
the first driving circuit comprises a first driving sub-circuit, a second driving sub-circuit and a working circuit;
the first driving sub-circuit consists of a triode Q1;
the second driving sub-circuit consists of a triode Q5;
the working circuit consists of a field effect transistor Q8;
when the control module sends a working signal to enable the triode Q1 to be conducted, the triode Q5 is driven to be conducted, and therefore the field effect transistor Q8 works.
6. A method of making an intelligent ankle-foot orthosis according to claim 1, comprising
Scanning feet and shanks of a human body to obtain a spatial three-dimensional value;
and inputting the space three-dimensional value into a computer to generate a space three-dimensional parameter.
7. The method of claim 6, wherein the ankle-foot orthosis is formed from a plurality of components,
establishing a space three-dimensional coordinate system in the three-dimensional software;
importing the space three-dimensional parameters and the circuit element box parameters into a space three-dimensional coordinate system, and superposing the circuit element box parameters and the space three-dimensional parameters;
and (4) removing the intersection of the space three-dimensional parameters and the circuit element box parameters to obtain three-dimensional processing parameters.
8. The method of making an intelligent ankle-foot orthosis according to claim 7,
inputting material data of the production material into the three-dimensional software,
matching hollow-out parameters in a database according to the material data;
inputting the hollow-out parameters into a space three-dimensional coordinate system, and superposing the hollow-out parameters and the three-dimensional processing parameters;
and removing the intersection of the three-dimensional processing parameters and the hollow-out parameters to generate the hollow-out processing parameters.
9. The method of claim 8, wherein the ankle-foot orthosis is formed from a plurality of components,
importing hollow processing parameters into a three-dimensional printing software slice to generate slice data;
and inputting the slice data into a 3D printer, and printing the orthosis main body.
CN202110465157.1A 2021-04-28 2021-04-28 Intelligent ankle-foot orthosis and manufacturing method thereof Pending CN115245414A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116205090A (en) * 2023-05-05 2023-06-02 合肥工业大学 Method and system for designing bare foot orthosis

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN116205090A (en) * 2023-05-05 2023-06-02 合肥工业大学 Method and system for designing bare foot orthosis

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