CN209826751U - Spasm sensor based on muscle tension detection - Google Patents
Spasm sensor based on muscle tension detection Download PDFInfo
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- CN209826751U CN209826751U CN201820353422.0U CN201820353422U CN209826751U CN 209826751 U CN209826751 U CN 209826751U CN 201820353422 U CN201820353422 U CN 201820353422U CN 209826751 U CN209826751 U CN 209826751U
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Abstract
The utility model relates to a spasm sensor based on muscle tension detects, including the muscle force transmission module that is used for gathering human surface muscle tension, adjust the quick unit module of power of muscle force transmission module and human muscle contact dynamics, receive and handle sensor data and finally show the detection module of spasm characteristic information, a casing module for installing muscle force transmission module, quick unit module of power and detection module, muscle force transmission module connects the lower extreme at casing module, quick unit module of power and detection module are located the upper end of muscle force transmission module and link to each other with casing module's upper end. The utility model can stably obtain the amplitude and frequency of muscle tension, evaluate the spasm characteristic information from the perspective of muscle tension perception, and realize quantitative evaluation of spasm; the spasm sensor has small volume and light weight, and is convenient for clinical measurement of rehabilitation.
Description
Technical Field
The utility model relates to a medical sensor technical field that mechanical quantity detected, specific spasm sensor based on muscle tension detects that says so.
Background
Pathological spasm is a specific dyskinetic syndrome which manifests itself as intermittent or continuous twitching of muscles accompanied by severe pain, which causes increased muscle tone, clinically manifested as muscle stiffness, rigidity contraction, painful spasm, and thus obstruction of limb movement.
The clinical evaluation method of the spasm mainly depends on that a doctor manually pulls the diseased limb of the patient, and the impedance of the muscle of the patient is sensed by observing the movement range of the joint of the patient and a palpation mode, so that the evaluation purpose is achieved, for example, the Ashoworth scale evaluation method is utilized. However, the method is a subjective measuring method, and different doctors can obtain different conclusions, so that the accuracy and objectivity of the conclusions are influenced. Meanwhile, palpation is a traditional diagnosis method, and is sensed by naked eye observation and hand touch, so that the method has strong subjectivity, and different doctor assessment results may be different.
Some researchers use an isokinetic muscle strength tester to measure muscle tension, but the main function of the isokinetic muscle strength tester is muscle exercise, and the muscle tension measurement of patients by using the isokinetic muscle strength tester is poor in accuracy and safety. In addition to mechanical measurement methods, there have been attempts to use non-mechanical measurement methods, such as electromyography, which have drawbacks in terms of the theoretical basis for detecting muscle tone. The electromyogram testing method mainly comprises the steps of needle electrode electromyogram and surface electromyogram, and the needle electrode is inserted into muscle for detecting, so that damage to a human body can be caused. The surface electromyographic signals are bioelectrical signals of the neuromuscular system during the activity, which are guided and recorded from the skin surface through the electrodes, and can reflect the activity of the neuromuscular system. However, the electromyographic signal detection is influenced by uncertain factors such as the placement position of the surface electrode, the body temperature change, the thickness of the lower limb fat and the like, and the accuracy of information acquisition is influenced.
In addition, in the clinical application of rehabilitation medicine, the lower limb physiological information of a patient is correlated with the rehabilitation training intensity through the evaluation of spasm characteristic information, a spasm test means and an evaluation scheme are objectively introduced into the rehabilitation robot training, muscle spasm is prevented and relieved to improve the rehabilitation training efficiency and effect, and the clinical rehabilitation training is well promoted.
Currently, there are related testing instruments in the market, such as myotonics-american Meotene (MYOTON) noninvasive muscle testing system, which can provide parameters of biomechanical properties such as vibration frequency, stiffness, elasticity, etc. by testing biomechanical force, truly and objectively reflect the functional state of muscle, and can make an assessment of metabolic action. However, the myotonics are less versatile and have not been rated for spasticity.
For example, chinese patent No. CN105726039A discloses a method for evaluating limb spasm and a device for implementing the method, which evaluates the degree of upper limb spasm by monitoring the elbow joint angle corresponding to the angular acceleration of the elbow joint of the upper limb or the linear velocity change of any point of the forearm, and the data of the angular velocity of the elbow joint or the acceleration change of any point of the forearm in real time. Therefore, a sensor device for evaluating spasm from the perspective of muscle tension perception is urgently needed, so that the spasm evaluation is more scientific and accurate, and the problem of quantification of spasm evaluation in rehabilitation clinic is effectively solved.
Disclosure of Invention
In order to avoid and solve the technical problem, the utility model provides a spasm sensor based on muscle tension detects.
The utility model discloses the technical problem that will solve adopts following technical scheme to realize:
the utility model provides a spasm sensor based on muscle tension detects, is including the muscle power transmission module that is used for gathering human surface muscle tension, adjusts the quick unit module of force of muscle power transmission module and human muscle contact dynamics in order to adapt to different patients, receives and handles sensor data and finally shows the detection module of spasm characteristic information, the casing module that is used for installing muscle power transmission module, quick unit module of force and detection module.
The muscle force transmission module is connected to the lower end of the shell module, and the force sensing unit module and the detection module are located at the upper end of the muscle force transmission module and connected with the upper end of the shell module.
Furthermore, the shell module comprises a shell, an upper end cover connected with the shell in a threaded connection mode, a lower end cover installed on the shell, and a binding belt connected with the upper end cover and forming a column shape. The lower end cover is connected to the shell through screws, and the binding band is fixedly connected with the upper end cover through rivets.
Furthermore, the force-sensitive unit module comprises an adjusting screw arranged in the upper end cover and a circular truncated cone connected with the bottom of the adjusting screw. And the round platform is provided with a set screw connected with the adjusting screw through threads.
Further, muscle power transmission module includes with casing and lower end cover axial sliding fit's fore-set, through threaded connection at the fore-set board of fore-set upper end, one end links to each other and the other end and casing sliding fit's guide shaft with the fore-set board through threaded connection's mode, suit damping spring on the guide shaft, fix boss on the fore-set board, fix the pressure sensor on the boss through the flexible glue. The top of the boss is connected with the top column plate through a screw.
Furthermore, an intermediate plate matched with the top column and the guide shaft is arranged in the shell.
Furthermore, the detection module comprises a signal processing unit, an upper computer, a wireless communication circuit unit and a power supply module, wherein the signal processing unit is connected with the pressure sensor in the muscle strength transmission module, acquires data, processes and analyzes the data, classifies and judges spasm characteristics, the wireless communication circuit unit is connected with the signal processing unit and communicates with the upper computer, and the power supply module is connected with the signal processing unit.
Furthermore, a pressure sensor signal modulation circuit and an A/D conversion circuit are sequentially connected between the pressure sensor and the signal processing unit.
Furthermore, the upper computer is connected with a wireless communication module and a display module, data transmission between the upper computer and the signal processing unit is achieved through the wireless communication module and the wireless communication circuit unit, and the display module is used for displaying characteristic information of muscle spasm.
Furthermore, the upper computer and the signal processing unit are connected with USB modules, and data transmission between the upper computer and the signal processing unit is achieved through USB data lines.
Furthermore, the pressure sensor in the muscle force transmission module is excited when the tension of external muscles changes to form an excitation signal with amplitude jump, frequency change and amplitude-frequency alternating change, the signal processing unit receives the excitation signal and then processes the excitation signal to analyze three pathological spasm characteristics of rigidity, clonus and cramps, and finally the signal processing unit is connected with the upper computer and outputs and displays the characteristics in the upper computer.
Furthermore, a digital-analog conversion module is arranged in the upper end cover, the digital-analog conversion module amplifies obtained data, performs algorithm processing on the data and transmits data information to the detection module, so that stable muscle tension data are transmitted to an upper computer through a wireless communication circuit unit or a USB module, the size of the muscle tension can be displayed in the upper computer during measurement, and spasm characteristics are revealed through the change rule of the amplitude and the frequency of the muscle tension.
Furthermore, the signal processing unit is further connected with a user key module, the user key module is used for realizing different functional use requirements, the power supply module comprises a battery management module, a battery state display and a lithium battery, the battery state display and the lithium battery are connected with the battery management module, and the signal processing unit is further connected with a red display lamp and a green display lamp, wherein the red display lamp and the green display lamp are used for displaying system states.
The utility model has the advantages that:
1. the utility model discloses an utilize the fore-set to carry out slow extrusion contact to measurand muscle, measure muscle tension with muscle tension sensor, make the spasm assess can quantify, the evaluation result is more accurate.
2. The utility model provides a convenient to use, simple structure, can stably acquire muscular tension's size and frequency spasm perception method, not only can regard as the detection and the prevention of spasm in the rehabilitation training, can also regard as the quantitative evaluation of spasm, are favorable to patient's rehabilitation training.
3. The utility model discloses small, the quality is light, convenient recovered clinical measurement.
Drawings
The present invention will be further explained with reference to the drawings and examples.
Fig. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
fig. 3 is a schematic structural diagram of a muscle strength transmission module according to the present invention;
FIG. 4 is a schematic structural diagram of a force-sensitive unit module according to the present invention;
FIG. 5 is a schematic diagram of the present invention in contact with the muscles of the lower limbs of the human body;
fig. 6 is a block diagram of the detection module according to the present invention.
Detailed Description
In order to make the utility model realize, the technical means, the creation characteristics, the achievement purpose and the efficacy are easy to understand and understand, and the utility model is further explained below.
As shown in fig. 1 to 6, a spasm sensor based on muscle tension detection includes a muscle force transmission module for collecting the muscle tension on the surface of a human body, a force sensitive unit module for adjusting the contact force between the muscle force transmission module and the muscle of the human body to adapt to different patients, a detection module for receiving and processing sensor data and finally displaying spasm characteristic information, and a housing module for installing the muscle force transmission module, the force sensitive unit module, and the detection module.
The muscle force transmission module is connected to the lower end of the shell module, and the force sensing unit module and the detection module are located at the upper end of the muscle force transmission module and connected with the upper end of the shell module.
The shell module comprises a shell 3-2, an upper end cover 3-3 connected with the shell 3-2 in a threaded connection mode, a lower end cover 3-1 installed on the shell 3-2, and a binding band 3-4 connected with the upper end cover 3-3 and forming a column shape. The lower end cover 3-1 is connected to the shell 3-2 through screws, and the binding band 3-4 is fixedly connected with the upper end cover 3-3 through rivets.
The force sensing unit module comprises an adjusting screw 2-1 arranged in an upper end cover 3-3 and a circular truncated cone 2-3 connected with the bottom of the adjusting screw 2-1, and a set screw 2-2 connected with the adjusting screw 2-1 through threads is arranged on the circular truncated cone 2-3.
The muscle force transmission module comprises a top column 1-1, a top column plate 1-2, a guide shaft 1-3, a damping spring 1-4, a boss 1-5 and a pressure sensor 1-6, wherein the top column 1-1 is in axial sliding fit with a shell 3-2 and a lower end cover 3-1, the top column plate 1-2 is connected to the upper end of the top column 1-1 through threads, one end of the guide shaft 1-3 is connected with the top column plate 1-2 through threads, the other end of the guide shaft 1-3 is in sliding fit with the shell 3-2, the boss 1-5 is fixed on the top column plate 1-2, and the pressure sensor 1-6 is. The top of the boss 1-5 is connected with the top column plate 1-2 through a screw. When the pressure sensor is used, the lower end face of the top column 1-1 is in contact with lower limb muscles 1-7, the upper end face of the top column is in contact with the pressure sensor 1-6, the pressure sensor 1-6 is pressed under the adjusting action of the adjusting screw 2-1 during measurement, and the pressed force is collected by the detection module.
An intermediate plate 3-2-1 matched with the top column 1-1 and the guide shaft 1-3 is arranged in the shell 3-2.
The pressure sensor 1-6 adopts single-point pressure sensor, is an ultra-thin flexible printed circuit, pressure sensor 1-6 includes 2 layers of base layer films, has one deck signal transmission layer and one deck pressure sensitive material on every layer, and one deck insulating glue is used for pasting two-layer base layer film, and its flexibility is high, linearity and precision are high and wide range pressure test scope. The single-point pressure sensor is equivalent to a pressure resistor in a circuit, when the pressure sensor has no external load, the circuit is in a high-resistance state, when external pressure is applied to the sensor, the resistance of the circuit is reduced along with the reduction of the resistance, and the resistance value is correspondingly changed along with the change of the external pressure.
The detection module comprises a signal processing unit, an upper computer, a wireless communication circuit unit and a power supply module, wherein the signal processing unit is connected with the pressure sensors 1-6 in the muscle strength transmission module and used for acquiring data, processing and analyzing the data, classifying and judging spasm characteristics, the wireless communication circuit unit is connected with the signal processing unit and communicated with the upper computer, and the power supply module is connected with the signal processing unit.
And a pressure sensor signal modulation circuit and an A/D conversion circuit are sequentially connected between the pressure sensors 1-6 and the signal processing unit.
The upper computer is connected with a wireless communication module and a display module, data transmission between the upper computer and the signal processing unit is achieved through the wireless communication module and the wireless communication circuit unit, and the display module is used for displaying characteristic information of muscle spasm. The upper computer and the signal processing unit are connected with USB modules, and data transmission between the upper computer and the signal processing unit is achieved through USB data lines. When the device is used, data transmission between the upper computer and the signal processing unit can be realized by any one of the wireless communication or data line connection.
The pressure sensors 1-6 in the muscle force transmission module are excited when the tension of external muscles changes to form excitation signals with amplitude jump, frequency change and amplitude-frequency alternating change, the signal processing unit receives the excitation signals and processes the excitation signals to analyze three pathological spasm characteristics of rigidity, clonus and cramps, and finally the signal processing unit is connected with the upper computer and outputs and displays the characteristics in the upper computer.
The digital-analog conversion module is arranged in the upper end cover, the digital-analog conversion module amplifies obtained data, performs algorithm processing on the data and transmits data information to the detection module, so that stable muscle tension data are transmitted to the upper computer through the wireless communication circuit unit or the USB module, the size of the muscle tension can be displayed in the upper computer during measurement, and spasm characteristics are revealed through the change rule of the amplitude and the frequency of the muscle tension.
The signal processing unit is also connected with a user key module, the user key module is used for realizing different functional use requirements, the power supply module comprises a battery management module, a battery state display and a lithium battery, the battery state display and the lithium battery are connected with the battery management module, and the signal processing unit is also connected with a red display lamp and a green display lamp, which are used for displaying the system state.
The working principle of the present invention is further explained below:
when in detection, the binding bands 3-4 are bound on the lower leg, the part of the lower end of the top column 1-1 outside the shell 3-2 is embedded into soleus muscles or gastrocnemius muscles of a human body, the lower end part of the top column 1-1 is properly extruded with the lower limb muscles 1-7 through the adjusting screw 2-1, the adjusting screw 2-1 applies force to the pressure sensor 1-6, meanwhile, the bottom end face of the pressure sensor 1-6 is abutted against the top column 1-1 through the boss 1-5, and the muscle tension applied to the top column 1-1 is transmitted to the pressure sensor 1-6.
The signal processing unit receives the collected signals of the pressure sensors 1-6, the signals are processed by the pressure sensor modulation circuit and the A/D conversion circuit, data information is transmitted to an upper computer through the wireless communication circuit unit, the upper computer reads and analyzes the data, and the size range of the muscle tension is judged firstly.
If the amplitude of the muscle tension is kept at a certain value and the fluctuation is small, the muscle can be judged to be in the strong direct contraction according to the three characteristics of the spasm.
If the frequency of the muscle tension is changed and the amplitude is small, the muscle is in the clonus state according to the three characteristics of the spasm.
If the amplitude and the frequency of the muscle tension are changed, the muscle can be judged to be cramp according to the three characteristics of the cramp.
And judging the type of the spasm according to the three characteristics of the spasm, wherein the muscle tension in the process of muscle spasticity is expressed as a certain value, the muscle tension in the process of muscle clonus is expressed as a wave function, and the muscle tension in the process of pain spasm is a combination of spasticity and clonus, and has a fixed value and a jump.
The foregoing shows and describes the general principles, essential features, and advantages of the invention. It should be understood by those skilled in the art that the present invention is not limited to the above embodiments, and the above embodiments and what is described in the specification are the principles of the present invention, and that there can be various changes and modifications without departing from the spirit and scope of the present invention, and these changes and modifications all fall into the scope of the claimed invention. The scope of the invention is defined by the appended claims and equivalents thereof.
Claims (6)
1. A spasm sensor based on muscle tension detection, characterized in that: the method comprises the following steps:
the muscle force transmission module is used for acquiring the surface muscle tension of the human body;
the force sensitive unit module is used for adjusting the contact force of the muscle force transmission module and human muscle;
a detection module that receives and processes sensor data and displays seizure characteristic information;
the shell module is used for installing the muscle force transmission module, the force sensitive unit module and the detection module;
the muscle force transmission module is connected to the lower end of the shell module, and the force sensing unit module and the detection module are located at the upper end of the muscle force transmission module and connected with the upper end of the shell module.
2. A spasm sensor based on muscle tone detection according to claim 1, wherein: the shell module comprises a shell (3-2), an upper end cover (3-3) connected with the shell (3-2) in a threaded connection mode, a lower end cover (3-1) installed on the shell (3-2), and a binding band (3-4) connected with the upper end cover (3-3) and forming a column shape.
3. A spasm sensor based on muscle tone detection according to claim 2, wherein: the force-sensitive unit module comprises an adjusting screw (2-1) arranged on an upper end cover (3-3) and a circular truncated cone (2-3) connected with the bottom of the adjusting screw (2-1).
4. A spasm sensor based on muscle tone detection according to claim 2, wherein: the muscle strength transmission module comprises a top column (1-1) in axial sliding fit with a shell (3-2) and a lower end cover (3-1), a top column plate (1-2) in threaded connection with the upper end of the top column (1-1), a guide shaft (1-3) with one end in threaded connection with the top column plate (1-2) and the other end in sliding fit with the shell (3-2), a damping spring (1-4) sleeved on the guide shaft (1-3), a boss (1-5) fixed on the top column plate (1-2), and a pressure sensor (1-6) fixed on the boss (1-5).
5. A spasm sensor based on muscle tone detection according to claim 4, wherein: the detection module comprises a signal processing unit, an upper computer, a wireless communication circuit unit and a power module, wherein the signal processing unit is connected with the muscle strength transmission module and used for acquiring data, processing and analyzing the acquired data, classifying and judging spasm characteristics, the wireless communication circuit unit is connected with the signal processing unit and communicated with the upper computer, the power module is connected with the signal processing unit, and a pressure sensor modulation circuit and an A/D conversion circuit are sequentially connected between the pressure sensor and the signal processing unit.
6. A spasm sensor based on muscle tone detection according to claim 5, wherein: the muscle force transmission module is subjected to external muscle tension change to form an excitation signal with amplitude jump, frequency change and amplitude-frequency alternating change, and the signal processing unit receives the excitation signal, processes the excitation signal, analyzes pathological spasm characteristics and displays the pathological spasm characteristics in the upper computer.
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| CN201820353422.0U CN209826751U (en) | 2018-03-15 | 2018-03-15 | Spasm sensor based on muscle tension detection |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108433735A (en) * | 2018-03-15 | 2018-08-24 | 安徽工程大学 | A kind of spasm sensor based on Muscle tensility detection |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108433735A (en) * | 2018-03-15 | 2018-08-24 | 安徽工程大学 | A kind of spasm sensor based on Muscle tensility detection |
| CN108433735B (en) * | 2018-03-15 | 2023-07-21 | 安徽工程大学 | Spasm sensor based on muscle tension detection |
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