CN102125727B - Foot drop stimulator - Google Patents
Foot drop stimulator Download PDFInfo
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- CN102125727B CN102125727B CN 201110091366 CN201110091366A CN102125727B CN 102125727 B CN102125727 B CN 102125727B CN 201110091366 CN201110091366 CN 201110091366 CN 201110091366 A CN201110091366 A CN 201110091366A CN 102125727 B CN102125727 B CN 102125727B
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- patient
- drop foot
- angle
- angular transducer
- memory element
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Abstract
The invention discloses a foot drop stimulator which comprises at least one left electrode and/or at least one right electrode, a first storage unit, a second storage unit, an angle sensor, a control unit, a pulse generating unit and a power supply unit, wherein the left electrode is arranged at the left leg of a patient, and the right electrode is arranged at the right leg of the patient; the first storage unit stores an included angle threshold value; the second storage unit stores a current type list; the angle sensor induces an included angle of the crus of the patient and a coronal shaft and/or a vertical shaft; the control unit is used for sending a pulse start signal with current type corresponding to the foot drop type of the patient when the included angle is larger than or equal to the included angle threshold value; the pulse generating unit is used for transmitting pulse current with current type corresponding to the foot drop type of the patient; and the left electrode and/or right electrode correspondingly stimulates the legs of the patient according to the pulse current. The foot drop stimulator disclosed by the invention can transmit the pulse current in different current types according to the type difference of foot drop of the patient and achieve the aim of targeted correction on the patient, thereby further expanding the application range of the foot drop stimulator.
Description
Technical field
The invention belongs to drop foot correcting technology field, relate in particular to a kind of drop foot stimulator.
Background technology
Drop foot refers to that slight apoplexy or other reason cause patient's common peroneal nerve out of control, makes that patient can not be by the calf bit function sexual disorders in the crooked ankle of muscle joint.The patient can not independently lift tiptoe in the process of walking in such cases, causes patient's difficulty in walking, is easy to fall, even causes life danger.
For this reason, the drop foot stimulator that prior art provides adopts mechanical system, as hand steered support, mechanical foot holder etc. patient's drop foot is assisted recovery, yet the complex structure of this kind drop foot stimulator, bulky, complicated operation, generally need under the guidance of medical practitioner, use, and can't correct targetedly at dissimilar drop foot patients, be of limited application.
Summary of the invention
The purpose of the embodiment of the invention is to provide a kind of drop foot stimulator, can't correct the problem that is of limited application at dissimilar drop foot patients targetedly with the drop foot stimulator that the solution prior art provides.
The embodiment of the invention is achieved in that a kind of drop foot stimulator, and described drop foot stimulator comprises:
At least one places the left electrode of patient left side lower limb, and/or at least one places the right electrode of the right lower limb of patient;
First memory element is used for storage angle threshold value;
Second memory element is used for the current type table that stored record has drop foot type and corresponding current type thereof;
Angular transducer is for the angle of the described patient's shank of induction and frontal axis and/or vertical axis;
Control unit, the angle that is used for sensing described patient's shank and frontal axis and/or vertical axis when described angular transducer is during more than or equal to the described angle threshold value of described cell stores, according to the described second cell stores current type table, send the burst enable signal of the current type corresponding with described patient's drop foot type;
The pulse generation unit that is electrically connected with described left electrode and/or right electrode, be used for sending according to the described burst enable signal that described control unit sends the pulse current of default current type dutycycle, corresponding with described patient's drop foot type, described left electrode and/or right electrode correspondingly stimulate described patient's shank according to described pulse current;
Power supply unit is used for to described control unit, angular transducer, first memory element, second memory element and the power supply of pulse generation unit.
Described drop foot stimulator can also comprise: trigger element is used for receiving the triggering signal that the user imports;
Described power supply unit begins to described control unit, angular transducer, first memory element, second memory element and the power supply of pulse generation unit according to described triggering signal.
Described drop foot stimulator can also comprise:
Tip element, be used for when described trigger element receives the described triggering signal of user's input, send cue, and the angle of sensing described patient's shank and frontal axis and/or vertical axis when described angular transducer sends cue during more than or equal to the described angle threshold value of described cell stores.
Described power supply unit can comprise:
The transformation module is used for external voltage or cell voltage are converted to the 9V DC voltage;
Voltage stabilizing module is after being used for the described 9V DC voltage that described transformation module converts obtains is converted to the 5V DC voltage, to described control unit, angular transducer, first memory element, second memory element and the power supply of pulse generation unit.
Described control unit can comprise:
The angle signal receiver module be used for to receive described patient's shank that described angular transducer senses and the angle of frontal axis and/or vertical axis;
Comparison module is used for described patient's shank that described angle signal receiver module is received and the angle of frontal axis and/or vertical axis and the described angle threshold value of described cell stores and compares;
Pulse control module, be used for when the angle of described patient's shank and frontal axis and/or vertical axis during more than or equal to the described angle threshold value of described cell stores, according to the current type table of described second cell stores, send the burst enable signal of the current type corresponding with described patient's drop foot type.
Described angular transducer can be the twin shaft angular transducer.
Described angle threshold value can be 20 degree.
Described control unit can be singlechip chip.
Described foot-drop corrector can be positioned over tibial tuberosity bottom under described patient's knee joint.
Drop foot stimulator provided by the invention is simple in structure, processing ease, volume are little, thereby is convenient to carrying and using, applied range of patient; And this drop foot stimulator can send the pulse currents of different current type according to the type difference of patient's drop foot, has played the purpose that the patient is corrected targetedly, has further expanded its range of application.
Description of drawings
Below the present invention is described in detail by drawings and the specific embodiments.
Fig. 1 is the structure principle chart of drop foot stimulator provided by the invention;
Fig. 2 is the concrete structure figure of power supply unit and control unit among Fig. 1;
Fig. 3 is a kind of circuit diagram of Fig. 1.
The specific embodiment
In order to make purpose of the present invention, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the present invention is further elaborated.Should be appreciated that specific embodiment described herein only in order to explaining the present invention, and be not used in restriction the present invention.
Fig. 1 shows the structural principle of drop foot stimulator provided by the invention.
Drop foot stimulator provided by the invention comprises: at least one places the left electrode 16 of left lower limb, and/or at least one places the right electrode 17 of right lower limb; First memory element 14 is used for storage angle threshold value; Second memory element 19 is used for the storaging current type list, and this current type table record has drop foot type and corresponding current type thereof; Angular transducer 13 is for the angle of induction patient's shank and frontal axis and/or vertical axis; Control unit 11, during angle threshold value that the angle that is used for sensing patient's shank and frontal axis and/or vertical axis when angular transducer 13 is stored more than or equal to first memory element 14, according to second memory element, 19 storaging current type lists, send the burst enable signal of the current type corresponding with this patient's drop foot type; The pulse generation unit 15 that is electrically connected with left electrode 16 and/or right electrode 17, be used for sending according to the burst enable signal that control unit 11 sends the pulse current of default current type dutycycle, corresponding with this patient's drop foot type, left side electrode 16 and/or right electrode 17 are according to this pulse current, correspondingly stimulate patient's shank, lift the lower limb action thereby make the patient finish; Power supply unit 18 is used for to control unit 11, angular transducer 13, first memory element 14, second memory element 19 and 15 power supplies of pulse generation unit.Current type wherein comprises triangular wave, square wave, trapezoidal wave, sine wave, staircase waveform, exponential wave etc.; Angular transducer 13 wherein is preferably the twin shaft angular transducer; Angle threshold value wherein is preferably 20 degree; Control unit 11 wherein can adopt singlechip chip, ARM chip or other programmable logic device; This drop foot stimulator of the present invention preferably is positioned over tibial tuberosity bottom under patient's knee joint.
Drop foot stimulator provided by the invention is simple in structure, processing ease, volume are little, thereby is convenient to carrying and using, applied range of patient; And this drop foot stimulator can send the pulse currents of different current type according to the type difference of patient's drop foot, has played the purpose that the patient is corrected targetedly, has further expanded its range of application.
This drop foot stimulator provided by the invention also comprises: trigger element 12, be used for receiving the triggering signal of user's input, at this moment, power supply unit 18 begins to control unit 11, angular transducer 13, first memory element 14, second memory element 19 and 15 power supplies of pulse generation unit according to this triggering signal.
This drop foot stimulator provided by the invention also comprises: the Tip element (not shown) is used for sending cue when trigger element 12 receives the triggering signal of user's input; During angle threshold value that the angle that this Tip element can also be used for sensing patient's shank and frontal axis and/or vertical axis when angular transducer 13 is stored more than or equal to first memory element 14, send cue.This cue can be optical signal or voice signal.
Fig. 2 shows the concrete structure of power supply unit 18 and control unit 11 among Fig. 1.
Fig. 3 shows a kind of circuit of Fig. 1.Wherein, U3 is the singlechip chip as control unit 11; U4 is angular transducer 13; U1 is the 24C16 memory chip; U2 is the MAX232 communication interface; U5 is 7805 voltage stabilizing chips, output 5V unidirectional current; Interface J2 connection electrode; Interface J5 is spare interface; Interface J1 is power interface, connects the 9V unidirectional current.
Drop foot stimulator provided by the invention is simple in structure, processing ease, volume are little, thereby is convenient to carrying and using, applied range of patient; And this drop foot stimulator can send the pulse currents of different current type according to the type difference of patient's drop foot, has played the purpose that the patient is corrected targetedly, has further expanded its range of application.
The above; only be the preferable specific embodiment of the present invention; but protection scope of the present invention is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the present invention discloses; be equal to replacement or change according to technical scheme of the present invention and inventive concept thereof, all should be encompassed within protection scope of the present invention.
Claims (5)
1. a drop foot stimulator is characterized in that, described drop foot stimulator comprises:
At least one places the left electrode of patient left side lower limb, and/or at least one places the right electrode of the right lower limb of patient;
First memory element is used for storage angle threshold value;
Second memory element is used for the current type table that stored record has drop foot type and corresponding current type thereof;
Angular transducer is for the angle of the described patient's shank of induction and frontal axis and/or vertical axis;
Control unit, the angle that is used for sensing described patient's shank and frontal axis and/or vertical axis when described angular transducer is during more than or equal to the described angle threshold value of described cell stores, according to the described second cell stores current type table, send the burst enable signal of the current type corresponding with described patient's drop foot type;
The pulse generation unit that is electrically connected with described left electrode and/or right electrode, be used for sending according to the described burst enable signal that described control unit sends the pulse current of default current type dutycycle, corresponding with described patient's drop foot type, described left electrode and/or right electrode correspondingly stimulate described patient's shank according to described pulse current;
Power supply unit is used for to described control unit, angular transducer, first memory element, second memory element and the power supply of pulse generation unit;
Described drop foot stimulator also comprises: trigger element is used for receiving the triggering signal that the user imports;
Described power supply unit begins to described control unit, angular transducer, first memory element, second memory element and the power supply of pulse generation unit according to described triggering signal;
Described drop foot stimulator also comprises:
Tip element, be used for when described trigger element receives the described triggering signal of user's input, send cue, and the angle of sensing described patient's shank and frontal axis and/or vertical axis when described angular transducer sends cue during more than or equal to the described angle threshold value of described cell stores;
Described power supply unit comprises:
The transformation module is used for external voltage or cell voltage are converted to the 9V DC voltage;
Voltage stabilizing module is after being used for the described 9V DC voltage that described transformation module converts obtains is converted to the 5V DC voltage, to described control unit, angular transducer, first memory element, second memory element and the power supply of pulse generation unit;
Described control unit comprises:
The angle signal receiver module be used for to receive described patient's shank that described angular transducer senses and the angle of frontal axis and/or vertical axis;
Comparison module is used for described patient's shank that described angle signal receiver module is received and the angle of frontal axis and/or vertical axis and the described angle threshold value of described cell stores and compares;
Pulse control module, be used for when the angle of described patient's shank and frontal axis and/or vertical axis during more than or equal to the described angle threshold value of described cell stores, according to the current type table of described second cell stores, send the burst enable signal of the current type corresponding with described patient's drop foot type.
2. drop foot stimulator as claimed in claim 1 is characterized in that, described angular transducer is the twin shaft angular transducer.
3. drop foot stimulator as claimed in claim 1 is characterized in that, described angle threshold value is 20 degree.
4. drop foot stimulator as claimed in claim 1 is characterized in that, described control unit is singlechip chip.
5. drop foot stimulator as claimed in claim 1 is characterized in that, described foot-drop corrector is positioned over tibial tuberosity bottom under described patient's knee joint.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110091366 CN102125727B (en) | 2011-04-12 | 2011-04-12 | Foot drop stimulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110091366 CN102125727B (en) | 2011-04-12 | 2011-04-12 | Foot drop stimulator |
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| Publication Number | Publication Date |
|---|---|
| CN102125727A CN102125727A (en) | 2011-07-20 |
| CN102125727B true CN102125727B (en) | 2013-08-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110091366 Expired - Fee Related CN102125727B (en) | 2011-04-12 | 2011-04-12 | Foot drop stimulator |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1767872A (en) * | 2003-04-02 | 2006-05-03 | 神经技术公司 | Implantable nerve signal sensing and stimulation device for treating foot drop and other neurological disorders |
| CN101822870A (en) * | 2010-05-14 | 2010-09-08 | 大连理工大学 | Foot drop self-adaptive stimulator |
| CN201625339U (en) * | 2009-12-11 | 2010-11-10 | 杭州共远科技有限公司 | Rehabilitation therapy device |
| CN101947153A (en) * | 2010-08-21 | 2011-01-19 | 赵智博 | Wearable intelligent foot drop corrector and correction method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20090043357A1 (en) * | 2007-08-07 | 2009-02-12 | The Hong Kong Polytechnic University | Wireless real-time feedback control functional electrical stimulation system |
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2011
- 2011-04-12 CN CN 201110091366 patent/CN102125727B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1767872A (en) * | 2003-04-02 | 2006-05-03 | 神经技术公司 | Implantable nerve signal sensing and stimulation device for treating foot drop and other neurological disorders |
| CN201625339U (en) * | 2009-12-11 | 2010-11-10 | 杭州共远科技有限公司 | Rehabilitation therapy device |
| CN101822870A (en) * | 2010-05-14 | 2010-09-08 | 大连理工大学 | Foot drop self-adaptive stimulator |
| CN101947153A (en) * | 2010-08-21 | 2011-01-19 | 赵智博 | Wearable intelligent foot drop corrector and correction method |
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| Publication number | Publication date |
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| CN102125727A (en) | 2011-07-20 |
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