CN113040709B - Sensory function testing device - Google Patents
Sensory function testing device Download PDFInfo
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- CN113040709B CN113040709B CN202110225673.7A CN202110225673A CN113040709B CN 113040709 B CN113040709 B CN 113040709B CN 202110225673 A CN202110225673 A CN 202110225673A CN 113040709 B CN113040709 B CN 113040709B
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/48—Other medical applications
- A61B5/4824—Touch or pain perception evaluation
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B5/00—Measuring for diagnostic purposes; Identification of persons
- A61B5/40—Detecting, measuring or recording for evaluating the nervous system
- A61B5/4005—Detecting, measuring or recording for evaluating the nervous system for evaluating the sensory system
Abstract
The present invention relates to a sensory function testing device, comprising: the device comprises a main control operation module and a handheld test module; the main control operation module is connected with the handheld test module; the handheld test module comprises a stepping motor and two test needles; the stepping motor is connected with the main control operation module; the test needle head is arranged on the stepping motor; the stepping motor is used for adjusting the distance between the two test needles; the test needle is used for testing the perception state of the patient; the perception state includes the patient's perception at a current test distance and the patient's non-perception at a current test distance; the main control operation module is used for controlling the handheld testing device to adjust the distance between the two testing needles. The invention realizes automatic test and shortens the test time.
Description
Technical Field
The invention relates to the field of sensory dysfunction testing, in particular to a sensory function testing device.
Background
The stroke is a common disease in the elderly, and can often cause disability of the elderly, wherein the somatosensory dysfunction is a common dysfunction after the stroke occurs, can affect the motor function of a patient, and further causes damage to the daily activity of the patient, so that the development of a mature and complete stroke patient two-point discrimination test device is particularly important for the later recovery treatment of the stroke patient.
The existing related research contents about the senile cerebral apoplexy patients mostly focus on the aspects of motor function rehabilitation, psychological intervention, infection control and the like, the research about somatosensory functions is few, and the related research about touch and two-point discrimination is more rare.
The two-point discrimination method mainly measures a two-point discrimination distance. The distance between two points of normal finger distal and palm skin is 3-5mm, when the nerve injury is repaired, the distance between two points is larger in the early stage of sensory recovery, and the distance between two points is gradually reduced along with the increase of the number of regenerated nerve fibers and the improvement of quality. The closer the two-point discrimination distance is to the normal value, the better the neurosensory fiber recovery.
The current measurement mainly uses a special plastic drive plate, the distance of the test needle head is changed through manual adjustment of a doctor, the measurement process is complicated, data are not easy to store, the test precision is low, the test process consumes too long time, and discomfort and even dislike of a patient are easily caused. Moreover, the test needle on the plastic dial is easy to break, and the material consumption of the needle is large.
Disclosure of Invention
The invention aims to provide a sensory function testing device to solve the problems of long testing time and low testing precision of the sensory function testing device in the prior art.
In order to achieve the purpose, the invention provides the following scheme:
a sensory function testing device comprising: the device comprises a main control operation module and a handheld test module; the main control operation module is connected with the handheld test module;
the handheld test module comprises a stepping motor and two test needles; the stepping motor is connected with the main control operation module; the test needle head is arranged on the stepping motor; the stepping motor is used for adjusting the distance between the two test needles; the test needle is used for testing the perception state of the patient; the perception state includes the patient's perception at a current test distance and the patient's non-perception at a current test distance;
the main control operation module is used for detecting the perception state of a patient and controlling the stepping motor to adjust the distance between the two testing needle heads;
when the perception state of the patient is that the patient feels under the current testing distance, the main control operation module generates a distance reduction instruction and sends the distance reduction instruction to the handheld testing module to enable the stepping motor to rotate and reduce the distance between the testing needle heads; when the perception state of the patient is that the patient does not feel at the current testing distance, the main control operation module generates a distance expansion instruction and sends the distance expansion instruction to the handheld testing module, so that the stepping motor rotates to expand the distance between the testing needle heads.
Optionally, the main control operation module further includes: the device comprises a main control circuit, a first key, a second key, a motor driver, a display screen expansion module, a display screen and an SD card;
the first key and the second key are both connected with the main control circuit, the main control circuit is connected with the motor driver, and the motor driver is connected with the handheld test module; when the perception state of the patient is that the patient feels at the current testing distance, the first key is pressed down, and the main control circuit generates a distance reduction instruction; when the perception state of the patient is that the patient does not feel at the current testing distance, the second key is pressed down, and the main control circuit generates a distance expansion instruction; the motor driver is used for controlling the rotation of the stepping motor according to the distance reduction instruction and the distance expansion instruction;
one end of the display screen expansion module is connected with the main control circuit, and the other end of the display screen expansion module is connected with the display screen; the display screen expansion module is used for supplying power to the display screen and providing a serial port communication function;
the display screen is connected with the SD card; the display screen is used for displaying the test data and the test data trend chart;
the SD card is used for storing test data; the test data is the distance between the current test points.
Optionally, the heights of the two test needles are the same; the two test needles are on the same straight line; the distance between the two test needles is the distance between the test points.
Optionally, the display screen includes a test area selection interface; the test area selection interface is used for selecting a test area;
the test area comprises a palm area and a finger area, wherein the palm area takes the palm center as the center to make a dot-and-dash cross, and the palm area is divided into four test areas; the finger regions include a thumb region, an index finger region, a middle finger region, a ring finger region, and a little finger region.
Optionally, the display screen further includes a login interface; the login interface is used for user login.
Optionally, the display screen further includes a left-right hand selection interface; the left-hand and right-hand selection interface is used for selecting a left hand or a right hand for testing.
Optionally, the display screen further includes a test interface; the test interface is used for displaying the distance between the test points in the test process.
Optionally, the display screen further includes a historical data viewing interface; the historical data viewing interface is used for viewing the test data of the patient.
Optionally, the display screen further includes a line graph interface; the line graph interface is used to view a test data trend graph for the patient test site.
According to the specific embodiment provided by the invention, the invention discloses the following technical effects:
the sensory function testing device detects the perception state of a patient at the current testing distance through the main control operation module, and when the detected perception state is sensed, the main control operation module generates a control instruction for reducing the distance of a testing needle and sends the control instruction to the handheld testing module, so that the stepping motor rotates to reduce the distance of the testing needle; when the detected sensing state is no sense, the main control operation module generates a control instruction for expanding the distance of the test needle head and sends the control instruction to the handheld test module to enable the stepping motor to rotate so as to expand the distance of the test needle head; the sensory function testing device improves the testing precision when the sensory function is measured, realizes automation in the whole testing process, and shortens the testing time.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a structural diagram of a sensory function testing device according to the present invention;
fig. 2 is a system block diagram of a sensory function testing device according to the present invention.
Description of the symbols: 1-a main control operation module; 2-a hand-held test module; 3-a step motor; 4-testing the needle head; 5-a display screen; 6-first key; 7-a second key; 8-SD card; 9-a master control circuit; 10-a display screen expansion module; 11-motor drive.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a sensory function testing device to solve the problems of long testing time and low testing precision of the sensory function testing device in the prior art.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
According to the sensory function testing device provided by the invention, when a patient closes eyes, the two needle points touch the testing area, the number of stimulation points can be sensed, and the distance can be obtained by inquiring whether the patient can sense 2 stimulation points or not, namely the data obtained by the handheld testing module 2. By this test, a quantification of the sensory function of minimal discrimination of the patient can be measured.
All patients, conscious, were defined as: two test points can be sensed; the definition of imperceptible is: two test points cannot be felt.
Fig. 1 is a structural diagram of a sensory function test apparatus according to the present invention, as shown in fig. 1, the sensory function test apparatus including: the device comprises a main control operation module 1 and a handheld test module 2; the main control operation module 1 is connected with the handheld test module 2.
The handheld test module 2 comprises a stepping motor 3 and two test needles 4; the stepping motor 3 is connected with the main control operation module 1; the test needle 4 is arranged on the stepping motor 3; the stepping motor 3 is used for adjusting the distance between the two test needles 4; the test needle 4 is used for testing the perception state of the patient; the perception state includes the patient's perception at a current test distance and the patient's non-perception at the current test distance.
The main control operation module 1 is used for controlling the handheld testing device to adjust the distance between the two testing needles 4.
When the sensing state detected by the main control operation module 1 is that the patient feels at the current testing distance, the main control operation module 1 generates a distance reduction instruction and sends the distance reduction instruction to the handheld testing module 2, so that the stepping motor 3 rotates to reduce the distance between the testing needles 4; when the sensing state detected by the main control operation module 1 is that the patient does not feel at the current testing distance, the main control operation module 1 generates a distance expansion instruction and sends the distance expansion instruction to the handheld testing module 2, so that the stepping motor 3 rotates to expand the distance between the testing needles 4.
Fig. 2 is a system block diagram of a sensory function testing apparatus according to the present invention, as shown in fig. 2, as an alternative embodiment, the main control operating module 1 further includes: the device comprises a main control circuit 9, a first key 6, a second key 7, a motor driver 11, a display screen expansion module 10, a display screen 5 and an SD card 8.
The first key 6 and the second key 7 are both connected with the main control circuit 9, the main control circuit 9 is connected with the motor driver 11, and the motor driver 11 is connected with the handheld test module 2; when the perception state of the patient is that the patient feels at the current testing distance, the first key 6 is pressed, and the main control circuit 9 generates a distance reduction instruction; when the perception state of the patient is that the patient does not feel at the current testing distance, the second key 7 is pressed, and the main control circuit 9 generates a distance expansion instruction; the motor driver 11 is configured to control the rotation of the stepping motor 3 according to the instruction for reducing the distance and the instruction for increasing the distance.
One end of the display screen expansion module 10 is connected with the main control circuit 9, and the other end of the display screen expansion module 10 is connected with the display screen 5; the display screen expansion module 10 is used for supplying power to the display screen 5 and providing a serial communication function.
The display screen 5 is connected with the SD card 8; the display screen 5 is used for displaying the distance between the test points; the SD card 8 is used for storing test data; the test data includes a current test point distance.
As an alternative embodiment, the two test needles 4 have the same height; the two test needles 4 are on the same straight line; the distance between two of the test needles 4 is the distance between the test points.
As an optional implementation mode, the programming software using the display screen 5 can perform detailed interface design to meet the requirement of the test, and the display screen 5 further comprises a login interface, a left-right hand selection interface, a test area selection interface, a test interface, a historical data viewing interface and a polyline trend graph interface.
The login interface is used for user login; the left-hand and right-hand selection interface is used for selecting a left hand or a right hand for testing; the test area selection interface is used for selecting a test area; the test area comprises a palm area and a finger area, wherein the palm area takes the palm center as the center to make a dot-and-dash cross, and the palm area is divided into four test areas; the finger areas comprise a thumb area, an index finger area, a middle finger area, a ring finger area and a little finger area; the test interface is used for displaying the distance between the test points in the test process; the historical data viewing interface is used for viewing the test data of the patient; the line graph interface is used to view a test data trend graph for the patient test site.
The display screen 5 further comprises a creation user interface; the creation user interface is used for new user registration; the new user can complete the registration of the new user by clicking a 'creation' button for the first time and inputting basic information such as four digits after the mobile phone number is input, and the test can be started by entering a left-hand and right-hand selection interface after the new user logs in. In order to prevent the repeated creation of the existing user, a query function is added in the programming, and if the user is queried to exist, the interface displays a corresponding prompt. If the user who does not exist is inquired to log in, the interface prompts that the user does not exist.
And entering a test site selection interface, inputting a test date, and entering the test interface after the site is selected. At this time, the distance between the two test needles 4 is initially 20mm, and the distance between the two test needles 4 is changed by the patient's test feedback after the doctor presses the green and red buttons indicating "success" or "failure". When the data in the box is determined to be the maximum distance which can be felt by the patient, the interface record control key is clicked, the data is recorded in the test part selection interface, and meanwhile, the distance between the two test needles 4 returns to the initial value of 20mm, so that the measurement of the next part is facilitated.
The first key 6 is green, which represents success and indicates that the perception state of the patient is sensed under the current testing distance; the second button 7 is red, representing "fail", indicating that the patient's perception status at the current test distance is not perceptible. When the first key 6 is pressed, the "test point distance" on the display screen 5 becomes smaller, and at the same time the stepping motor moves to a corresponding distance so that the distance between the two test needles 4 becomes smaller. Examples are: the distance value between the two initial test points is 20mm, the distance between the test points on the display screen 5 is 20mm, and the distance between the two test needles is 20 mm. After pressing first button 6, show "test point distance" on the display screen 5 and be 10mm, simultaneously, step motor begins to move, and the distance between two test syringe needles 4 becomes 10 mm. When the second key 7 is pressed, the distance between the test points on the display screen 5 is increased, and simultaneously the stepping motor moves to a corresponding distance to increase the distance between the two test needles 4. Examples are: at the moment, the distance value between the two test points is 10mm, the distance between the test points on the display screen 5 is 10mm, and the distance between the two test needles is 10 mm. After pressing the second key 7, the display screen 5 shows that the distance between the test points is 15mm, and meanwhile, the stepping motor starts to move, and the distance between the two test needles 4 becomes 15 mm.
Under the constraint of the timer and the flag bit, the main control operation module 1 sends an instruction to the handheld test module 2 to enable the stepping motor 3 to rotate. After one-time measurement is finished, serial port communication is carried out between the handheld test module 2 and the display screen 5 in the main control operation module 1, so that the stepping motor 3 is recovered to the initial measurement position, and meanwhile, the main control operation module 1 uploads data to the SD card 8.
The functions of 'history data viewing' and 'broken line trend graph' of the display screen 5 in the main control operation module 1 call data from the SD card 8, so as to generate a spreadsheet and a broken line graph.
The STM32F412 chip is used by the main control circuit 9, and serial port communication is adopted between the main control circuit 9, the display screen 5 and the handheld test module 2. When the key is pressed, the main control circuit 9 sends a corresponding number of pulses to the stepping motor 3 through the timer/timer function, and the stepping motor 3 can thus move a corresponding distance. By pressing the control key on the display screen 5, the display screen 5 sends the distance between the two current test points to the main control circuit 9 through serial port communication, and then the main control circuit 9 sends out the pulses with the corresponding number to the handheld test module 2 again according to the received information to enable the handheld test module 2 to return to the initial distance.
When all the parts are tested, the 'save' control key of the test part selection interface is clicked, all the data are displayed in an electronic watch, and the data are also saved in the SD card 8 externally inserted from the display screen 5. Clicking a control key of 'viewing historical data', so that all test data of the patient from creation to the present can be viewed; the trend chart of the test data of the test part of the patient can be checked by clicking the control key of the 'broken line trend chart'.
Motor driver 11 locates inside master control operation module 1, is connected through the long line between with step motor 3 to wrap up scattered line with pyrocondensation pipe, this design uses nimble activation with step motor 3's measurement, makes things convenient for the doctor to contact with patient when measuring.
Two test needles 4 are fixed on the stepping motor 3, and the heights of the two test needles 4 are equal, so that the phenomenon that a patient feels wrong due to needle difference is prevented, and the measuring result is influenced.
With step motor 3 with self tapping screw fixation in hand-held type test module 2, the gripping when making things convenient for the doctor to measure promotes to use and experiences, has also protected step motor 3 simultaneously, increases life.
The SD card 8 is externally inserted in the display screen card slot and used for storing test data and calling data.
The invention has the advantages of high precision, high efficiency, convenient operation and man-machine interaction. Wherein: the efficiency is high in that a complete set of tests can be completed in 5-10 minutes using the present invention, while 2-3 hours are required using prior art test tools. The time to complete a full set of tests using the present invention is 1/24 of the time measured using the prior art test tool. The short test time can prevent patients from uncomfortable, conflicting or dislike emotions, and reduce the possibility of doctor-patient contradiction.
The high precision is embodied in the motor driver 11: the high-speed current compensation function of the DC12V-2A can compensate the influence caused by the back electromotive force when the stepping motor 3 rotates at a high speed, and ensure the normal operation of the stepping motor 3. When the device is used, a common anode connection method is adopted, the subdivided dial is set to be 1011, the angle corresponding to each pulse is 0.45 degrees, the number of pulses required for one rotation is 800, and the voltage signal is 3.3V. The accuracy was 0.1mm and the speed was 5 mm/s. The prior art testing tool adopts manual distance adjustment and has large error.
At present, when the measurement is carried out in a hospital, a plastic dial is used, the measurement distance is manually adjusted by a doctor, the measurement result obtained from each part is recorded on paper, and the paper record is lost. However, with the present invention, testing only requires operations on the device: (1) when the key is pressed down, the handheld test module 2 can automatically move to the required distance; (2) and the data can be directly recorded by clicking the display screen 5, and a data trend graph and a history record can be checked at the same time.
The man-machine interaction comes from the main control operation module 1. The user operates through the result of the two-point discrimination test, and the machine completes the instruction according to the requirement of the user.
The invention aims to design a digitalized and intelligentized sensory function testing device which makes up the defects of the traditional measuring mode, can quantify sensory functions, shorten measuring time, increase the accuracy of measured data and ensure the long-term storage of the measured data.
The embodiments in the present description are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The principles and embodiments of the present invention have been described herein using specific examples, which are provided only to help understand the method and the core concept of the present invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (9)
1. A sensory function testing device, comprising: the device comprises a main control operation module and a handheld test module; the main control operation module is connected with the handheld test module;
the handheld test module comprises a stepping motor and two test needles; the stepping motor is connected with the main control operation module; the main control operation module comprises a motor driver, and the motor driver is connected with the stepping motor; the test needle head is arranged on the stepping motor; the stepping motor is used for adjusting the distance between the two test needles; the test needle is used for testing the perception state of the patient; the perception state includes the patient's perception at a current test distance and the patient's non-perception at a current test distance; the motor driver is used for controlling the rotation of the stepping motor according to the distance reduction instruction and the distance expansion instruction;
the main control operation module is used for controlling the stepping motor to adjust the distance between the two test needles;
when the perception state of the patient is that the patient feels under the current testing distance, the main control operation module generates a distance reduction instruction and sends the distance reduction instruction to the handheld testing module to enable the stepping motor to rotate and reduce the distance between the testing needle heads; when the perception state of the patient is that the patient does not feel at the current testing distance, the main control operation module generates a distance expansion instruction and sends the distance expansion instruction to the handheld testing module to enable the stepping motor to rotate and expand the distance between the testing needle heads;
when the motor driver is used, a common anode connection method is adopted, the subdivided dial codes are set to be 1011, the corresponding angle of each pulse is 0.45 degrees, the number of pulses required by one turn is 800, the voltage signal is 3.3V, the accuracy is 0.1mm, and the speed is 5 mm/s.
2. The sensory function testing device of claim 1, wherein the master operating module further comprises:
the device comprises a main control circuit, a first key, a second key, a display screen expansion module, a display screen and an SD card;
the first key and the second key are both connected with the main control circuit, and the main control circuit is connected with the motor driver; when the perception state of the patient is that the patient feels at the current testing distance, the first key is pressed down, and the main control circuit generates a distance reduction instruction; when the perception state of the patient is that the patient does not feel at the current testing distance, the second key is pressed down, and the main control circuit generates a distance expansion instruction;
one end of the display screen expansion module is connected with the main control circuit, and the other end of the display screen expansion module is connected with the display screen; the display screen expansion module is used for supplying power to the display screen and providing a serial port communication function;
the display screen is connected with the SD card; the display screen is used for displaying the test data and the test data trend chart;
the SD is used for storing test data; the test data is the distance between the current test points.
3. The sensory function testing device of claim 1, wherein the heights of the two test needles are the same; the two test needles are on the same straight line; the distance between the two test needles is the distance between the test points.
4. The sensory function testing device of claim 2, wherein the display screen comprises a test area selection interface; the test area selection interface is used for selecting a test area;
the test area comprises a palm area and a finger area, the palm area takes the palm center as the center to make a dot-and-dash cross, and the palm area is divided into four test areas; the finger regions include a thumb region, an index finger region, a middle finger region, a ring finger region, and a little finger region.
5. The sensory function testing device of claim 2, wherein the display screen further comprises a login interface; the login interface is used for user login.
6. The sensory function testing device of claim 2, wherein the display screen further comprises a left and right hand selection interface; the left-hand and right-hand selection interface is used for selecting a left hand or a right hand for testing.
7. The sensory function testing device of claim 2, wherein the display screen further comprises a test interface; the test interface is used for displaying the distance between the test points in the test process.
8. The sensory function testing device of claim 2, wherein the display screen further comprises a historical data viewing interface; the historical data viewing interface is used for viewing the test data of the patient.
9. The sensory function testing device of claim 2, wherein the display screen further comprises a line graph interface; the line graph interface is used to view a test data trend graph for the patient test site.
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| US5022407A (en) * | 1990-01-24 | 1991-06-11 | Topical Testing, Inc. | Apparatus for automated tactile testing |
| CN201185918Y (en) * | 2008-03-13 | 2009-01-28 | 蔺庆春 | Discrimination detector |
| CN204484071U (en) * | 2015-03-20 | 2015-07-22 | 哈尔滨市第一医院 | A kind of two point discrimination electronic detectors |
| KR20200055203A (en) * | 2018-11-12 | 2020-05-21 | 동국대학교 산학협력단 | System and method for predicting force based on image |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2012078243A2 (en) * | 2010-10-11 | 2012-06-14 | Woundmatrix, Inc. | Wound management mobile image capture device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5022407A (en) * | 1990-01-24 | 1991-06-11 | Topical Testing, Inc. | Apparatus for automated tactile testing |
| CN201185918Y (en) * | 2008-03-13 | 2009-01-28 | 蔺庆春 | Discrimination detector |
| CN204484071U (en) * | 2015-03-20 | 2015-07-22 | 哈尔滨市第一医院 | A kind of two point discrimination electronic detectors |
| KR20200055203A (en) * | 2018-11-12 | 2020-05-21 | 동국대학교 산학협력단 | System and method for predicting force based on image |
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