CN107184184A - A kind of knee jerk reflex electronic tester and the method for judging knee jerk reflex intensity - Google Patents

A kind of knee jerk reflex electronic tester and the method for judging knee jerk reflex intensity Download PDF

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Publication number
CN107184184A
CN107184184A CN201710597200.3A CN201710597200A CN107184184A CN 107184184 A CN107184184 A CN 107184184A CN 201710597200 A CN201710597200 A CN 201710597200A CN 107184184 A CN107184184 A CN 107184184A
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CN
China
Prior art keywords
sensor
communication module
bluetooth communication
knee jerk
jerk reflex
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CN201710597200.3A
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Chinese (zh)
Inventor
刘志超
郑宇�
张天然
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Wuhan University WHU
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Wuhan University WHU
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Priority to CN201710597200.3A priority Critical patent/CN107184184A/en
Publication of CN107184184A publication Critical patent/CN107184184A/en
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    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/103Detecting, measuring or recording devices for testing the shape, pattern, colour, size or movement of the body or parts thereof, for diagnostic purposes
    • A61B5/11Measuring movement of the entire body or parts thereof, e.g. head or hand tremor, mobility of a limb
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/40Detecting, measuring or recording for evaluating the nervous system
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/6813Specially adapted to be attached to a specific body part
    • A61B5/6828Leg
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/68Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient
    • A61B5/6801Arrangements of detecting, measuring or recording means, e.g. sensors, in relation to patient specially adapted to be attached to or worn on the body surface
    • A61B5/683Means for maintaining contact with the body
    • A61B5/6831Straps, bands or harnesses
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B5/00Measuring for diagnostic purposes; Identification of persons
    • A61B5/72Signal processing specially adapted for physiological signals or for diagnostic purposes

Abstract

The present invention relates to Medical Devices technology, and in particular to a kind of knee jerk reflex electronic tester, including diagnosis box and sensor;Diagnosis box includes LED, USB power supply ports, the first bluetooth communication module, diagnosis box switch and microprocessor;Sensor includes sensing switch, sensor charge port, the second bluetooth communication module and acceleration transducer;First bluetooth communication module is connected with the communication of the second bluetooth communication module;LED, USB power supply ports, the first bluetooth communication module, diagnosis box switch connect with the pin of microprocessor;LED, USB are arranged at diagnosis box outer surfac;Sensing switch, sensor charge port, the second bluetooth communication module are connected with acceleration transducer by circuit board;Sensing switch, sensor charge port are arranged on sensor outer housing.The tester eliminates the subjective impact that doctor uses naked-eye observation to bring, and by substantial amounts of test sample, can constantly adjust the scope of knee jerk reflex intensity weak, medium, strong, makes diagnostic value more accurate.

Description

A kind of knee jerk reflex electronic tester and the method for judging knee jerk reflex intensity
Technical field
The invention belongs to technical field of medical equipment, more particularly to a kind of knee jerk reflex electronic tester and judge that knee jerk is anti- The method for penetrating intensity.
Background technology
Knee jerk reflex is a kind of simplest reflection, including two neurons.The whole neuromechanisms for performing reflection are referred to as Reflex arc, generally comprises five parts:Receptor, afferent neurofibers, maincenter, efferent neurofibres and effector.Reflex arc Structure also has letter to have numerous, in simplest reflex arc, and afferent neuron and efferent neuron are directly contacted in maincenter, are referred to as Monosynaptic reflex, such as knee jerk reflex.Complicated reflex arc has many intrerneurons.
The afferent nerve and efferent nerve of knee jerk reflex are femoral nerve, and nerve center is lower nervous center, positioned at spinal cord Grey matter in.Brain can be got forwarded to by this nerve impulse by leading to cerebripetal nerve while knee jerk reflex, in spinal cord, make one sense Feel that, by knocking, knee jerk reflex is first completed, then just feel that knee is kowtowed, but this is almost simultaneously.
Knee jerk reflex by central nervous system senior department position influence, its react strong and weak, slow speed can reflect nervous centralis The functional status of system, clinically to check the illness of central nervous system.By the impression for stimulating knee leg muscle Device (mechanoceptor in quadriceps muscle of thigh tendon), has triggered action potential, action potential is up to spinal cord in sensory neuron, Sensory neuron directly sets up synaptic contact with motor neuron in spinal cord.If signal is sufficiently strong, it is possible in kinesitherapy nerve Trigger action potential in member.When action potential is delivered to leg muscle (quadriceps muscle of thigh), quadriceps muscle of thigh shrinks, and biceps muscle of thigh relaxes , you can cause knee jerk reflex.
At present, doctor often checks neuromuscular reflex with percussion hammer, and percussion hammer is more with one piece of rubber and a wooden or gold Belong to handle to constitute, with the rubber section gently relevant position of knocking when using, to observe knee jerk reflex.This diagnosis process is subjective by doctor Influence is big, is on the one hand that doctor is difficult to accurately control each knocking power, on the other hand, and doctor is (dynamic to patient's knee jerk reflected intensity Make amplitude, speed) judgement there is very big subjectivity and faint reaction may be neglected, cause erroneous judgement.Therefore, it is knee jerk is anti- Penetrate intensity quantified it is very necessary for doctor's clinical diagnosis.
The content of the invention
An object of the present invention is to provide a kind of electronic test equipment of energetic knee jerk reflex, can be strong by knee jerk reflex Degree is shown by different level, and layered weighting sensitivity is adjusted according to patient's actual test situation, is that doctor diagnoses trouble using knee jerk reflex The illness of person's nervous system provides data.
The second object of the present invention is to provide the side that a kind of utilization knee jerk reflex electronic tester judges knee jerk reflex intensity Method.
To realize above-mentioned first purpose, the technical solution adopted by the present invention is:A kind of knee jerk reflex electronic tester, bag Include diagnosis box and sensor;Diagnosis box includes LED, USB power supply ports, the first bluetooth communication module, diagnosis box switch and micro- place Manage device;Sensor includes sensing switch, sensor charge port, the second bluetooth communication module and acceleration transducer;First is blue Tooth communication module is connected with the communication of the second bluetooth communication module;LED, USB power supply ports, the first bluetooth communication module, diagnosis box Switch connects with the pin of microprocessor;LED, USB are arranged at diagnosis box outer surfac;Sensing switch, sensor charge port, Second bluetooth communication module is connected with acceleration transducer by circuit board;Sensing switch, sensor charge port are arranged on On sensor outer housing.
In above-mentioned knee jerk reflex electronic tester, bandage and velcro are also associated with outside diagnosis box.
In above-mentioned knee jerk reflex electronic tester, LED uses 1-8 LEDs, totally 8.
In above-mentioned knee jerk reflex electronic tester, acceleration transducer is xyz three-axis sensors.
To realize above-mentioned second purpose, the technical solution adopted by the present invention is:One kind utilizes knee jerk reflex Electronic Testing The method that instrument judges knee jerk reflex intensity, comprises the following steps:
Step 1, testee's shank acceleration and angle-data are gathered by sensor and pass through the second bluetooth communication mould Block is transmitted to the first bluetooth communication module;
Acceleration and angle-data that step 2, the bluetooth communication module of microprocessor processes first are received, are calculated by program Method realizes the judgement of knee jerk reflex intensity.
In the method that above-mentioned utilization knee jerk reflex electronic tester judges knee jerk reflex intensity, sensed described in step 1 It is that sensor is fixed on into testee by bandage and velcro that device, which gathers testee's shank acceleration and angle-data, On shank, measure x-axis, y-axis and z-axis acceleration, and acceleration of gravity direction and x-axis, y-axis and z-axis angle.
It is logical described in step 2 in the method that above-mentioned utilization knee jerk reflex electronic tester judges knee jerk reflex intensity Cross programmed algorithm and realize that the judgement of knee jerk reflex intensity includes:
Step 2.1, self-test unit, it is ensured that first, second bluetooth communication module and LED normal operation;
Step 2.2, reference plane demarcation unit, it is ensured that sensor is tied up to be started to survey when not moving on testee's shank Examination;
Step 2.3, intensity identifying unit, the value a of the z-axis acceleration gathered in real time using sensorzSubtract gravity acceleration The component in z-axis is spent, the acceleration magnitude a of testee's shank direction of action is obtainedzx, i.e.,:
azx=az-cosθz
According to azxSize, the intensity of knee jerk reflex is judged, while showing the bright number of LED.
In the method that above-mentioned utilization knee jerk reflex electronic tester judges knee jerk reflex intensity, the realization of step 2.1 Including:Sensor is opened, after diagnosis box is powered, into self-test unit, if the connection of first, second bluetooth communication module is normal, 8 LED all lights are controlled, makes 2-8 LEDs continue to extinguish after 2 seconds by delay procedure, only stays No. 1 LED is bright to characterize start State;If first, second bluetooth communication module connection failure, No. 8 LED flickers of control, delay is extinguished after 2 seconds.
In the method that above-mentioned utilization knee jerk reflex electronic tester judges knee jerk reflex intensity, the realization of step 2.2 Including:Compare the acceleration magnitude of the x-axis gathered twice before and after sensor and y-axis, if difference twice is sufficiently small less than what is given Value 1%, then it is assumed that sensor is not moved, can now start percussion process;If difference twice is more than 1%, then it is assumed that Sensor is moved, and percussion process is not entered, until sensor is not moved.
The beneficial effects of the invention are as follows:
1) by the accurate measurement of acceleration, the subjective impact that doctor uses naked-eye observation to bring is eliminated;
2) it is easy to operate without Switching Power Supply repeatedly if necessary to repeatedly test within a test period;
3) test sample is obtained by substantial amounts of test, can constantly adjusts the scope of weak, medium, strong, make diagnostic value more next Closer to accurate.
Brief description of the drawings
Fig. 1 is knee jerk reflex schematic device.
Fig. 1 (a) is one embodiment of the invention knee jerk reflex electronic tester diagnosis box schematic diagram;
Wherein, 1- diagnosis boxes, 101-LED lamps, 102-USB power supply ports, the bluetooth communication modules of 103- first, 104- diagnosis boxes Switch, 105- microprocessors;
Fig. 1 (b) is one embodiment of the invention knee jerk reflex electronic tester sensor schematic;
Wherein, 2- sensors, 201- sensing switch, 202- sensor charge ports, the bluetooth communication modules of 203- second, 204- acceleration transducers, 205- bandages, 206- velcros;
Fig. 2 demarcates unit flow chart for the reference plane of one embodiment of the invention;
Fig. 3 is the intensity identifying unit flow chart of one embodiment of the invention;
Fig. 4 runs main-process stream schematic diagram for the knee jerk reflex electronic tester of one embodiment of the invention.
Embodiment
Embodiments of the present invention are described in detail below in conjunction with the accompanying drawings.
The example of the embodiment is shown in the drawings, wherein same or similar label represents identical or class from beginning to end As element or the element with same or like function.The embodiments described below with reference to the accompanying drawings are exemplary, only For explaining the present invention, and it is not construed as limiting the claims.
Following disclosure provides many different embodiments or example is used for realizing the different structure of the present invention.For letter Change disclosure of the invention, hereinafter the part and setting of specific examples are described.They are only merely illustrative, and purpose is not It is to limit the present invention.In addition, the present invention can in different examples repeat reference numerals and/or letter.This repetition be for Simplify and clear purpose, the relation between discussed various embodiments and/or setting itself is not indicated.In addition, this hair The bright example for providing various specific techniques and material, but those of ordinary skill in the art can be appreciated that other techniques The use of applicability and/or other materials.In addition, fisrt feature described below second feature it " on " structure can be with The embodiment for being formed as directly contacting including the first and second features, can also include other feature formation first and second Embodiment between feature, such first and second feature may not be direct contact.
, it is necessary to explanation in description of the invention, unless otherwise prescribed and limit, term " connected " " connection " should do extensively Reason and good sense solution, can be joined directly together for example, it may be mechanically connecting or electrical connection or the connection of two element internals, It can also be indirectly connected to, for those of ordinary skill in the related art, can managed as the case may be by intermediary Solve the concrete meaning of above-mentioned term.
What the present embodiment was realized using following technical scheme, a kind of knee jerk reflex electronic tester, including diagnosis box with Sensor;Diagnosis box includes LED, USB power supply ports, the first bluetooth communication module, diagnosis box switch and microprocessor;Sensor Including sensing switch, sensor charge port, the second bluetooth communication module and acceleration transducer;First bluetooth communication module with The communication connection of second bluetooth communication module;LED, USB power supply ports, the first bluetooth communication module, diagnosis box switch and microprocessor The pin of device connects;LED, USB are arranged at diagnosis box outer surfac;Sensing switch, sensor charge port, the second bluetooth communication Module is connected with acceleration transducer by circuit board;Sensing switch, sensor charge port are arranged on sensor outer housing.
Further, bandage and velcro are also associated with outside diagnosis box.
Further, LED uses 1-8 LEDs, totally 8.
Further, acceleration transducer is xyz three-axis sensors.
A kind of method that utilization knee jerk reflex electronic tester judges knee jerk reflex intensity, comprises the following steps:
Step 1, testee's shank acceleration and angle-data are gathered by sensor and pass through the second bluetooth communication mould Block is transmitted to the first bluetooth communication module;
Acceleration and angle-data that step 2, the bluetooth communication module of microprocessor processes first are received, are calculated by program Method realizes the judgement of knee jerk reflex intensity.
Further, sensor collection testee's shank acceleration and angle-data described in step 1 be by bandage and Sensor is fixed on testee's shank by velcro, measures the acceleration of x-axis, y-axis and z-axis, and acceleration of gravity Direction and the angle of x-axis, y-axis and z-axis.
Further, realize that the judgement of knee jerk reflex intensity includes by programmed algorithm described in step 2:
Step 2.1, self-test unit, it is ensured that first, second bluetooth communication module and LED normal operation;
Step 2.2, reference plane demarcation unit, it is ensured that sensor is tied up to be started to survey when not moving on testee's shank Examination;
Step 2.3, intensity identifying unit, the value a of the z-axis acceleration gathered in real time using sensorzSubtract gravity acceleration The component in z-axis is spent, the acceleration magnitude a of testee's shank direction of action is obtainedzx, i.e.,:
azx=az-cosθz
According to azxSize, the intensity of knee jerk reflex is judged, while showing the bright number of LED.
Further, the realization of step 2.1 includes:Sensor is opened, after diagnosis box is powered, into self-test unit, if the First, the connection of the second bluetooth communication module is normal, then controls 8 LED all lights, 2-8 LEDs is continued 2 by delay procedure Extinguish after second, only stay the bright sign open state of No. 1 LED;If first, second bluetooth communication module connection failure, No. 8 are controlled LED is flashed, and delay is extinguished after 2 seconds.
Further, the realization of step 2.2 includes:Compare the acceleration of the x-axis gathered twice before and after sensor and y-axis Value, if difference twice is less than given sufficiently small value 1%, then it is assumed that sensor is not moved, can now start percussion Process;If difference twice is more than 1%, then it is assumed that sensor is moved, and percussion process is not entered, until sensor does not occur Motion.
When it is implemented, a kind of knee jerk reflex electronic tester, including diagnosis box 1 and sensor 2, such as shown in Fig. 1 (a), LED 101 is used for characterizing diagnosis box state and display knee jerk reflex intensity, and USB power supply ports 102 are used to power to diagnosis box 1;The One bluetooth communication module 103 receives from sensor 2 and transmits a of comingz、θzValue, then calculated and controlled by microprocessor 105 The lighting lamp state of LED 101;The control diagnosis box switching electricity of switch 104 of diagnosis box 1.
As shown in Fig. 1 (b), sensing switch 201 is used for controlling cut-offfing for sensor 2, and sensor charge port 202 can give The internal battery charging of sensor 2.Second bluetooth communication module 203 is used for leading to the first bluetooth communication module 103 of diagnosis box 1 News.Acceleration transducer 204 is xyz three-axis sensors.Bandage 205 and velcro 206 are tested for sensor 2 is fixed on Examination person's shank knee.
The method that knee jerk reflex intensity is judged using knee jerk reflex electronic tester is as follows:
(1) sensor realizes collection and the Bluetooth transmission function of acceleration and angle-data.
Sensor is placed on testee's shank by bandage, the acceleration of measurable x-axis, y-axis and z-axis, and gravity Acceleration direction and the angle of x-axis, y-axis and z-axis, diagnosis box is transferred to by the first bluetooth communication module by measurement signal.X-axis It is used to determining reference plane with the acceleration of y-axis, z-axis acceleration and is used to judge knee jerk reflex intensity with the angle of z-axis.Sensing The signal collected is real-time transmitted to microprocessor by device with the first bluetooth communication module.
(2) diagnosis box includes microprocessor, 8 LEDs, the second bluetooth communication modules, is powered using USB.Microprocessor For handling acceleration and angle-data that the second bluetooth communication module is received, and realize that knee jerk reflex is strong by programmed algorithm The judgement of degree, diagnostic state is shown by the number of 8 LED bright lights.
(3) programmed algorithm includes herein below:
1) self-test unit:Opened in sensor, after box diagnosis box is powered, into self-test unit, if first, second bluetooth is logical Interrogate module connection normal, then control 8 LED all lights, make 2-8 signal lamps continue to extinguish after 2 seconds by delay procedure, only stay No. 1 The bright sign open state of lamp.If first, second bluetooth communication module connection failure, No. 8 LED flickers of control, after being delayed 2 seconds Extinguish.Self-test unit ensures first, second bluetooth communication module and LED normal operation.
2) reference plane demarcation unit:Sensor is tied up on testee's shank, by the x-axis that gathers twice before and after relatively with The acceleration magnitude of y-axis, if difference twice is less than given sufficiently small value (being set as 1%), then it is assumed that sensor does not occur Motion, can now start percussion process;If difference twice is more than 1%, then it is assumed that sensor is moved, and does not enter percussion Journey, until sensor is not moved.Reference plane demarcation unit ensures to tie up on shank in sensor, and is opened when not moving Begin to test, eliminate the influence of artificial malfunction.Perform flow as shown in Figure 2.
3) intensity identifying unit:In gatherer process, the value a of the z-axis acceleration collected in real time using sensorz( According to gravity acceleration g normalizing) component of the acceleration of gravity in z-axis is subtracted, obtain the acceleration of testee's shank direction of action Angle value azx, i.e.,:
azx=az-cosθz
According to azxSize, the intensity of knee jerk reflex is judged, while showing the bright number of LED.In theory, if knee jerk is anti- Penetrate stronger, then azxValue it is bigger, now control LED it is bright number it is more.
In the present embodiment, tested by small sample, a is tentatively setzx<When 0.15, not bright light;0.15≤azx<When 0.3, No. 3 LEDs are bright;0.3≤azx<When 0.9,3, No. 5 LEDs it is bright;azx>When 0.9,3,5, No. 7 LEDs it is bright.Respectively correspond to it is very weak, Four grades of weak, medium, strong.Shown in execution flow chart 3.
Use the step of above-mentioned knee jerk reflex strength tester is diagnosed for:
1) sensor is tied up on testee's shank, and opens sensing switch;
2) diagnosis box is powered using USB;
3) confirm sensor and diagnosis box successful connection, and " startups " lamp length it is bright when, prepare to diagnose knocking;
4) knee jerk reflex intensity is judged according to the degree of strength of diagnosis box Display panel;
5) complete after once diagnosing, to repeatedly diagnose, can directly carry out, otherwise close diagnosis box power supply;
6) diagnosis box is powered off after completing diagnosis;
7) sensor and closure sensor switch are removed.
In summary, knee jerk reflex electronic tester operation main-process stream as shown in figure 4, start sensor 2, and will pass first Sensor 2 is tied up in testee's calf by bandage 205 and velcro 206.Then diagnosis box 1 is passed through into USB power supply ports 102 Power supply starts, and the signal lamp of LED 7 is bright during startup, the flicker of 8 signal lamps.7th, after 8 signal lamps extinguish, diagnosis box brings into operation self-test unit, 1 ~8 signal lamp all lights, extinguish, 1 signal lamp persistently can be lighted to characterize open state after 2~No. 8 delays.If LED and first, second Bluetooth communication module does not have failure, then carries out formal knee jerk reflex test.
Doctor taps the knee of patient with percussion hammer, and sensor 2 is by a collected in real timezWith θzValue is led to by the second bluetooth News module 203 is sent to the first bluetooth communication module 103 of diagnosis box 1, and diagnosis box 1 carries out data processing and calculates azx, root According to azxIt is worth the break-make that size judges and controls LED 101, doctor judges the power of knee jerk reaction from the bright quantity of LED.
It should be appreciated that the part that this specification is not elaborated belongs to prior art.
Although describing the embodiment of the present invention above in association with accompanying drawing, those of ordinary skill in the art should Understand, these are merely illustrative of, and various deformation or modification can be made to these embodiments, without departing from the original of the present invention Reason and essence.The scope of the present invention is only limited by the claims that follow.

Claims (9)

1. a kind of knee jerk reflex electronic tester, it is characterised in that including diagnosis box and sensor;Diagnosis box include LED, USB power supply ports, the first bluetooth communication module, diagnosis box switch and microprocessor;Sensor includes sensing switch, sensor and filled Power port, the second bluetooth communication module and acceleration transducer;First bluetooth communication module and the communication of the second bluetooth communication module connect Connect;LED, USB power supply ports, the first bluetooth communication module, diagnosis box switch connect with the pin of microprocessor;LED, USB It is arranged at diagnosis box outer surfac;Sensing switch, sensor charge port, the second bluetooth communication module and acceleration transducer pass through Circuit board is connected;Sensing switch, sensor charge port are arranged on sensor outer housing.
2. knee jerk reflex electronic tester as claimed in claim 1, it is characterised in that bandage and Buddhist nun are also associated with outside diagnosis box Imperial hasp.
3. knee jerk reflex electronic tester as claimed in claim 1, it is characterised in that LED uses 1-8 LEDs, totally 8 It is individual.
4. knee jerk reflex electronic tester as claimed in claim 1, it is characterised in that acceleration transducer passes for the axles of xyz tri- Sensor.
5. a kind of method that utilization knee jerk reflex electronic tester judges knee jerk reflex intensity, it is characterised in that including following step Suddenly:
Step 1, gather by sensor testee's shank acceleration and angle-data and pass through the second bluetooth communication module and pass Transport to the first bluetooth communication module;
Acceleration and angle-data that step 2, the bluetooth communication module of microprocessor processes first are received, it is real by programmed algorithm The judgement of existing knee jerk reflex intensity.
6. judging the method for knee jerk reflex intensity using knee jerk reflex electronic tester as claimed in claim 5, its feature exists In sensor collection testee's shank acceleration and angle-data described in step 1 will be sensed by bandage and velcro Device is fixed on testee's shank, measures the acceleration of x-axis, y-axis and z-axis, and acceleration of gravity direction and x-axis, y-axis and The angle of z-axis.
7. judging the method for knee jerk reflex intensity using knee jerk reflex electronic tester as claimed in claim 5, its feature exists In realizing that the judgement of knee jerk reflex intensity includes by programmed algorithm described in step 2:
Step 2.1, self-test unit, it is ensured that first, second bluetooth communication module and LED normal operation;
Step 2.2, reference plane demarcation unit, it is ensured that sensor, which is tied up, starts test when not moved on testee's shank;
Step 2.3, intensity identifying unit, the value a of the z-axis acceleration gathered in real time using sensorzAcceleration of gravity is subtracted in z The component of axle, obtains the acceleration magnitude a of testee's shank direction of actionzx, i.e.,:
azx=az-cosθz
According to azxSize, the intensity of knee jerk reflex is judged, while showing the bright number of LED.
8. judging the method for knee jerk reflex intensity using knee jerk reflex electronic tester as claimed in claim 7, its feature exists In the realization of step 2.1 includes:Sensor is opened, after diagnosis box is powered, into self-test unit, if first, second bluetooth communication Module connection is normal, then controls 8 LED all lights, makes 2-8 LEDs continue to extinguish after 2 seconds by delay procedure, only stays No. 1 The bright sign open state of LED;If first, second bluetooth communication module connection failure, No. 8 LED flickers of control, delay 2 Extinguish after second.
9. judging the method for knee jerk reflex intensity using knee jerk reflex electronic tester as claimed in claim 7, its feature exists In the realization of step 2.2 includes:Compare the acceleration magnitude of the x-axis gathered twice before and after sensor and y-axis, if difference twice Less than given sufficiently small value 1%, then it is assumed that sensor is not moved, can now start percussion process;If difference twice Value is more than 1%, then it is assumed that sensor is moved, and percussion process is not entered, until sensor is not moved.
CN201710597200.3A 2017-07-20 2017-07-20 A kind of knee jerk reflex electronic tester and the method for judging knee jerk reflex intensity Withdrawn CN107184184A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107625617A (en) * 2017-11-03 2018-01-26 河南科技大学第附属医院 A kind of chair of Neurology inspection and exercise

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2110213C1 (en) * 1996-06-14 1998-05-10 Вадим Александрович Сафронов Device for measuring and studying human muscle responses
CN204121075U (en) * 2014-10-28 2015-01-28 南阳医学高等专科学校第一附属医院 A kind of electronic nerve detection hammer
CN106943161A (en) * 2017-04-25 2017-07-14 武汉大学 A kind of intelligent diagnosis and treatment percussion hammer of the human body knee jerk based on six-axle acceleration sensor

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
RU2110213C1 (en) * 1996-06-14 1998-05-10 Вадим Александрович Сафронов Device for measuring and studying human muscle responses
CN204121075U (en) * 2014-10-28 2015-01-28 南阳医学高等专科学校第一附属医院 A kind of electronic nerve detection hammer
CN106943161A (en) * 2017-04-25 2017-07-14 武汉大学 A kind of intelligent diagnosis and treatment percussion hammer of the human body knee jerk based on six-axle acceleration sensor

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107625617A (en) * 2017-11-03 2018-01-26 河南科技大学第附属医院 A kind of chair of Neurology inspection and exercise
CN107625617B (en) * 2017-11-03 2019-07-09 河南科技大学第一附属医院 A kind of chair of Neurology inspection and exercise

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