CN202920217U - Rat paw periphery muscle tone measuring device - Google Patents
Rat paw periphery muscle tone measuring device Download PDFInfo
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- CN202920217U CN202920217U CN 201220487591 CN201220487591U CN202920217U CN 202920217 U CN202920217 U CN 202920217U CN 201220487591 CN201220487591 CN 201220487591 CN 201220487591 U CN201220487591 U CN 201220487591U CN 202920217 U CN202920217 U CN 202920217U
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Abstract
The utility model provides a rat paw periphery muscle tone measuring device which comprises a paw fixed device, an expanding connection device, a signal collection device, a signal processing unit, a servo motor, a servo driver and a microprocessor. The expanding connection device is fixedly connected with the paw fixed device, the signal collection device is fixedly connected with the paw fixed device and the expanding connection device and can collect a voltage signal of paw periphery muscle tone, and the signal processing unit is connected with the signal collection device and can convert the collected voltage signal into a digital signal. The servo motor is fixedly connected with the expanding connection device and can drive a paw to rotate around an ankle joint, the servo driver is connected with the servo motor and can control angular displacement and/or an angular speed of rotation of a rotating shaft of the servo motor, and the microprocessor can generate a corresponding electric signal and sends to the servo driver according to the preset angular displacement and/or the angular speed. The rat paw periphery muscle tone measuring device can achieve measuring of the rat paw periphery muscle tone, and solves the technical problem that in the prior art, people can not precisely measure limb muscle tone of experimental animal models.
Description
Technical field
This utility model relates to the muscle tone measuring technique of experimental animal model, relates in particular to a kind of rat claw periphery muscle tone measurement device.
Background technology
Apoplexy be at present in, the old people is lethal and the principal disease that disables, its and heart disease, malignant tumor are listed as the whole world three large Death causes, have that sickness rate is high, disability rate is high, mortality rate is high, relapse rate is high and complication more than etc. characteristics.
The variation of limb muscle tension force can occur in convalescent period after apoplexy, be embodied in limb muscle tension force and increase or the limb muscle spasm occurs.To be limb muscle produce resistance to the passive exercise of different rates to the clinical characters of limb muscle spasm, and present in proportion and increase, and namely allokinetic speed is higher, and the resistance that limb muscle produces is larger.Limb muscle spasm after apoplexy can obviously reduce Quality of Life, increases the burden of patient family and society.Therefore, utilize experimental animal model that the research of limb muscle spasm occurrence cause and therapeutic effect is had very important significance, and wherein to the measurement of the limb muscle tension variation of experimental animal model and analyze particularly crucial because it can reflect the degree of the limb muscle spasm of this experimental animal model indirectly.
Limb muscle tension force is that limb muscle is in a kind of mechanical stress that has under relaxed state, it can help limbs to remain on state and position between the joint, various limbs attitudes are provided simultaneously, and can provide necessary pressure for the foundation of limb muscle motion.Muscle tone has been described the recovery of muscle between contraction and diastole.The tension force higher than normal condition can be upset the blood flow state of supply in muscle, and this is to diminish because higher muscle tone can cause the diameter of blood vessel, thereby the blood flow that arrives in muscular tissue will reduce.The muscle tone rising can cause that pain, motion function descend, transship and other untoward reaction; A little less than muscle tone hanged down and represents that muscle, its motion function was also lower.
At present, the measuring method for the limb muscle Tensity size of experimental animal model mainly is divided into bio-mechanical measurement method and EMG detection method.Wherein, it is mainly to use motor driving reducer that the bio-mechanical measurement method is measured limb muscle tension force, detected part fixture and torque tester are installed on the output shaft of decelerator, thereby by the trend of the measurement of moment of torsion being inferred tested position muscle tone changes, but this measuring method is in fact a kind of indirectly measuring method, can't reflect exactly size and the situation of change of the limb muscle tension force of experimental animal model.And the EMG detection method is for experimental animal model, and particularly after apoplexy, there is the more technical problem that is difficult to overcome in the measurement of rat claw periphery muscle tone state.At first, because the EMG detection method need be used needle electrode and adopt electrical stimulation technology, can cause certain painful and injury to experimental animal model in testing process, and can only test its Nerve impulse and can arrive muscular tissue, can't measure exactly size and the situation of change of muscle tone.Secondly, require when carrying out EMG detection muscle can loosen fully or do in various degree firmly, thereby require fully cooperation of detected object, this is obviously impossible for experimental animal model.Therefore, how to measure accurately and to analyze for the limb muscle tension force of experimental animal model? be still this area unsolved technical problem always.
The utility model content
This utility model provides a kind of rat claw periphery muscle tone measurement device, to solve in prior art the technical problem of the limb muscle tension force of experiments of measuring animal model exactly.
This utility model provides a kind of rat claw periphery muscle tone measurement device, and this measuring device comprises:
The claw fixture is used for the fixedly claw of rat, and does not limit described claw around the rotation of ankle joint;
The expansion connecting device, an end of this expansion connecting device is fixedly connected with described claw fixture;
Signal pickup assembly, this signal pickup assembly are fixedly connected with described expansion connecting device with described claw fixture respectively, and can gather the voltage signal of described claw this claw periphery muscle tone when ankle joint rotates;
Signal processing unit is connected with described signal pickup assembly, exports after can and converting digital signal to the described voltage signal amplification, the filtering that collect;
Servomotor, the rotating shaft of this servomotor is fixedly connected with the other end of described expansion connecting device, can be by this expansion connecting device with the transmission of torque of described rotating shaft to described claw fixture, and drive described claw and rotate in the certain angle scope around ankle joint;
Servo-driver, this servo-driver is connected with described servomotor, can by the signal of telecommunication corresponding with predefined angular displacement and/or angular velocity, control angular displacement and/or angular velocity that described servomotor rotating shaft is rotated;
Microprocessor, this microprocessor is connected with described servo-driver, can generate the corresponding signal of telecommunication according to predefined angular displacement and/or angular velocity, and the described signal of telecommunication is sent to described servo-driver.
In rat claw periphery muscle tone measurement device as above, described claw fixture is " ㄩ " type hardware, be somebody's turn to do end and the pivot joint of described expansion connecting device of a side vertical beam of " ㄩ " type hardware, the end of being somebody's turn to do the opposite side vertical beam of " ㄩ " type hardware is fixedly connected with described expansion connecting device by described signal pickup assembly, and the crossbeam that is somebody's turn to do " ㄩ " type hardware is used for fixing described claw.
in rat claw periphery muscle tone measurement device as above, described expansion connecting device is the L-type hardware, comprise: the motor extended axis, be fixedly connected with arm and machine shaft engaging arm, one end of this machine shaft engaging arm is fixedly connected with the rotating shaft of described servomotor, the other end of this machine shaft engaging arm be fixedly installed can with the motor extended axis of the end pivot joint of described claw fixture one side vertical beam, and the other end of this machine shaft engaging arm intersects vertically and is formed in one with a described end that is fixedly connected with arm, the described other end that is fixedly connected with arm is fixedly connected with by the end of described signal pickup assembly with described claw fixture opposite side vertical beam.
In rat claw periphery muscle tone measurement device as above, described signal pickup assembly comprises the sensor be used to the voltage signal that gathers described claw periphery muscle tone, and is used for fixed part that this sensor is fixedly connected with described expansion connecting device with described claw fixture respectively.
In rat claw periphery muscle tone measurement device as above, described sensor is the thin beam load cell of full-bridge.
In rat claw periphery muscle tone measurement device as above, the cassette screw that the end that described claw fixture is connected with described fixed part is provided with U-shaped draw-in groove and can matches and screw tight with this U-shaped draw-in groove and described fixed part.
In rat claw periphery muscle tone measurement device as above, also comprise:
Display device, the numerical value that is used for receiving the digital signal of described signal processing unit output and shows the claw periphery muscle tone corresponding with this digital signal;
Man-machine interaction unit comprises keyboard and display, and this man-machine interaction unit is connected with described microprocessor, can and set described angular displacement and/or angular velocity by this keyboard input, and show the numerical value of described angular displacement and/or angular velocity by this display;
Power Management Unit, this Power Management Unit is connected with described servo-driver, microprocessor and signal processing unit respectively, is described servo-driver, microprocessor and signal processing unit power supply after alternating current power supply being converted to dc source.
In sum, a kind of rat claw periphery muscle tone measurement device provided by the utility model has following beneficial effect with respect to prior art:
due to rat claw periphery muscle tone measurement device provided by the utility model, can use the claw of rat to rotate around its ankle joint according to predefined angular displacement and/or angular velocity control experiment, and can be in the process that claw rotates, gather the voltage signal of described claw periphery muscle tone, and export after converting digital signal to, therefore realized the measurement to limbs (claw) muscle tone of experimental animal model (rat), and can be instant, the situation of change that reflects exactly limb muscle tension force, thereby solved in the prior art technical problem of the limb muscle tension force of experiments of measuring animal model exactly.Simultaneously, measuring device provided by the utility model can provide the reference data of relevant limb muscle tension force accurately for rat experiment processes such as limbs muscle spasm after apoplexy, spinal cord injury paraplegia, the poisoning limb muscle that causes of Acute Morphine are stiff.
Description of drawings
The structural representation of a kind of rat claw periphery muscle tone measurement device that Fig. 1 provides for this utility model embodiment;
Fig. 2 is the structure enlarged diagram of the claw fixture shown in Fig. 1;
Fig. 3 is the structure enlarged diagram of the expansion connecting device shown in Fig. 1;
The specific embodiment
For the purpose, technical scheme and the advantage that make this utility model embodiment clearer, below in conjunction with the accompanying drawing in this utility model embodiment, technical scheme in this utility model embodiment is clearly and completely described, obviously, described embodiment is this utility model part embodiment, rather than whole embodiment.Based on the embodiment in this utility model, those of ordinary skills are not making the every other embodiment that obtains under the creative work prerequisite, all belong to the scope of this utility model protection.
The structural representation of a kind of rat claw periphery muscle tone measurement device that Fig. 1 provides for this utility model embodiment.As shown in Figure 1, the rat claw periphery muscle tone measurement device that provides of this utility model embodiment comprises:
servo-driver 60, this servo-driver 60 is connected with servomotor 50, can be by the signal of telecommunication corresponding with predefined angular displacement and/or angular velocity, control angular displacement and/or the angular velocity of the rotating shaft rotation of servomotor 50, this servo-driver 60 comprises servo control unit, power drive unit, communication interface unit and feedback detecting unit, wherein, servo control unit comprises again the Angular displacement control device, angular rate control unit and torque and current controller, and the rotating shaft that this servo-driver 60 can be controlled servomotor 50 is rotated continuously with uniform angular velocity, the rotation of uniform angular velocity crawl reaches various modes such as deciding the angular displacement rotation and rotates, thereby can measure the rat claw with the periphery muscle tone of different mode this claw when ankle joint rotates,
the technical scheme of the present embodiment can use the claw of rat to rotate around its ankle joint according to predefined angular displacement and/or angular velocity control experiment, and can be in the process that claw rotates, gather the voltage signal of described claw periphery muscle tone, and export after converting digital signal to, therefore realized the measurement to limbs (claw) muscle tone of experimental animal model (rat), and can be instant, the situation of change that reflects exactly limb muscle tension force, thereby solved in the prior art technical problem of the limb muscle tension force of experiments of measuring animal model exactly.Simultaneously, the rat claw periphery muscle tone measurement device that provides of the present embodiment can provide the reference data of relevant limb muscle tension force accurately and reliably for rat experiment processes such as limbs muscle spasm after apoplexy, spinal cord injury paraplegia, the poisoning limb muscle that causes of Acute Morphine are stiff.
Fig. 2 is the structure enlarged diagram of the claw fixture 10 shown in Fig. 1.as depicted in figs. 1 and 2, on the basis of technique scheme, this claw fixture 10 is " ㄩ " type hardware, the end of a side vertical beam that should " ㄩ " type hardware be provided with can with the hole (not shown in accompanying drawing) of expansion connecting device 20 pivot joints, the end of being somebody's turn to do the opposite side vertical beam of " ㄩ " type hardware is fixedly connected with expansion connecting device 20 by signal pickup assembly 30, the crossbeam that is somebody's turn to do " ㄩ " type hardware is used for fixedly rat foot pawl, but not limiting this claw rotates around its ankle joint, wherein also need to prove: for the Stability and veracity of measuring, can be first the trunk of rat being fixed in diameter is in the plastic hollow pipe of 10 centimetres, and then with adhesive tape or otherwise the claw of rat is fixed on the crossbeam of above-mentioned " ㄩ " type hardware, and the ankle joint of this claw and the rotating shaft of servomotor 50 are positioned on same axis.
Fig. 3 is the structure enlarged diagram of the expansion connecting device 20 shown in Fig. 1.as shown in Figure 1 to Figure 3, on the basis of technique scheme, expansion connecting device 20 is the L-type hardware, it comprises: motor extended axis 21, be fixedly connected with arm 22 and machine shaft engaging arm 23, one end of this machine shaft engaging arm 23 is fixedly connected with by the rotating shaft of hex screw 24 with servomotor 50, the other end of this machine shaft engaging arm 23 by hex screw 24 be fixedly installed can with the motor extended axis 21 of hole (not shown in the accompanying drawing) pivot joint of the end of claw fixture 10 1 side vertical beams, this motor extended axis 21 is positioned on same axis with the rotating shaft of servomotor 50 and the ankle joint of rat claw, and the other end of this machine shaft engaging arm 23 intersects vertically and is formed in one with an end that is fixedly connected with arm 22, this other end that is fixedly connected with arm 22 is fixedly connected with by the end of signal pickup assembly 30 with claw fixture 10 opposite side vertical beams, so, claw fixture 10 can directly not be connected with the rotating shaft of servomotor 50, thereby the large and harmful effect that may cause accuracy and the stability of tension force collection and measurement result of torque when having reduced due to motor start-up.
As shown in figures 1 and 3, on the basis of technique scheme, signal pickup assembly 30 comprises the sensor 31 for the voltage signal that gathers claw periphery muscle tone, and is used for this sensor 31 respectively with claw fixture 10 and expands the bridge-type fixed part 32 that connecting device 20 is fixedly connected with.wherein, this sensor 31 can be that (the thin beam load cell of full-bridge is a sensor that is used for specially carrying out little load measurement that U.S. Omega company releases to the thin beam load cell of full-bridge, it can be used to measure Medical Instruments, domestic. applications, process control, robot, various stress parameters in automobile and many other volume applications, and have remarkable Measurement sensibility and a reliability), this sensor 31 can Real-time Collection claw this claw periphery muscle tone when ankle joint rotates voltage signal, for example, but gather once this claw each second with the angular velocity of 5 radian per seconds (rad/s), the voltage signal of the claw periphery muscle tone the uniform rotation process of the angular displacement of from 0 to 50 radian, the two ends of this fixed part 32 are respectively equipped with the hex screw 33 that sensor 31 can be fixed on fixed part 32, and wherein the hex screw 33 of an end can be fixed to this fixed part 32 being fixedly connected with on arm 22 of expansion connecting device 20.
As shown in Figure 1 to Figure 3, on the basis of technique scheme, the cassette screw 12 that the end that claw fixture 10 is connected with fixed part 32 is provided with U-shaped draw-in groove 11 and can matches and screw tight with this U-shaped draw-in groove 11 and fixed part 32.so can realize sensor 31 with claw fixture 10 and expand being fixedly connected with of connecting device 20 by fixed part 32, certainly also can adopt welding to wait other fixed forms that sensor 31 is fixedly connected with expansion connecting device 20 with claw fixture 10 respectively, like this, when the rat claw under the driving of servomotor 50 when its ankle joint rotates (rotation direction please refer to the arc double-head arrow shown in Fig. 1), the tension force that claw periphery muscle produces can be fed back to sensor 31 by claw fixture 10 and fixed part 32, thereby make sensor 31 can collect the voltage signal of this claw periphery muscle tone.
As shown in Figure 1, on the basis of technique scheme, the rat claw periphery muscle tone measurement device that the present embodiment provides also comprises:
Man-machine interaction unit 80, comprise keyboard and display (not shown in accompanying drawing) and I/O (I/O) interface, this man-machine interaction unit 80 is connected with microprocessor 70, can and set above-mentioned angular displacement and/or angular velocity by this keyboard input, and show the numerical value of above-mentioned angular displacement and/or angular velocity by this display, so, make the user can be convenient according to the measurement needs of oneself, the rotating shaft of fast and intuitively inputting and set servomotor 50 angular displacement and/or the angular velocity that rotate;
It should be noted that at last: above embodiment only in order to the technical solution of the utility model to be described, is not intended to limit; Although with reference to previous embodiment, this utility model is had been described in detail, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme that previous embodiment is put down in writing, and perhaps some or all of technical characterictic wherein is equal to replacement; And these modifications or replacement do not make the essence of appropriate technical solution break away from the scope of this utility model embodiment technical scheme.
Claims (7)
1. a rat claw periphery muscle tone measurement device, is characterized in that, comprising:
The claw fixture is used for the fixedly claw of rat, and does not limit described claw around the rotation of ankle joint;
The expansion connecting device, an end of this expansion connecting device is fixedly connected with described claw fixture;
Signal pickup assembly, this signal pickup assembly are fixedly connected with described expansion connecting device with described claw fixture respectively, and can gather the voltage signal of described claw this claw periphery muscle tone when ankle joint rotates;
Signal processing unit is connected with described signal pickup assembly, exports after can and converting digital signal to the described voltage signal amplification, the filtering that collect;
Servomotor, the rotating shaft of this servomotor is fixedly connected with the other end of described expansion connecting device, can be by this expansion connecting device with the transmission of torque of described rotating shaft to described claw fixture, and drive described claw and rotate in the certain angle scope around ankle joint;
Servo-driver, this servo-driver is connected with described servomotor, can by the signal of telecommunication corresponding with predefined angular displacement and/or angular velocity, control angular displacement and/or angular velocity that described servomotor rotating shaft is rotated;
Microprocessor, this microprocessor is connected with described servo-driver, can generate the corresponding signal of telecommunication according to predefined angular displacement and/or angular velocity, and the described signal of telecommunication is sent to described servo-driver.
2. rat claw periphery muscle tone measurement device according to claim 1, it is characterized in that, described claw fixture is " ㄩ " type hardware, be somebody's turn to do end and the pivot joint of described expansion connecting device of a side vertical beam of " ㄩ " type hardware, the end of being somebody's turn to do the opposite side vertical beam of " ㄩ " type hardware is fixedly connected with described expansion connecting device by described signal pickup assembly, and the crossbeam that is somebody's turn to do " ㄩ " type hardware is used for fixing described claw.
3. rat claw periphery muscle tone measurement device according to claim 2, it is characterized in that, described expansion connecting device is the L-type hardware, comprise: the motor extended axis, be fixedly connected with arm and machine shaft engaging arm, one end of this machine shaft engaging arm is fixedly connected with the rotating shaft of described servomotor, the other end of this machine shaft engaging arm be fixedly installed can with the motor extended axis of the end pivot joint of described claw fixture one side vertical beam, and the other end of this machine shaft engaging arm intersects vertically and is formed in one with a described end that is fixedly connected with arm, the described other end that is fixedly connected with arm is fixedly connected with by the end of described signal pickup assembly with described claw fixture opposite side vertical beam.
According to claim 1 to 3 arbitrary described rat claw periphery muscle tone measurement device, it is characterized in that, described signal pickup assembly comprises the sensor be used to the voltage signal that gathers described claw periphery muscle tone, and is used for fixed part that this sensor is fixedly connected with described expansion connecting device with described claw fixture respectively.
5. rat claw periphery muscle tone measurement device according to claim 4, is characterized in that, described sensor is the thin beam load cell of full-bridge.
6. rat claw periphery muscle tone measurement device according to claim 4, it is characterized in that the cassette screw that the end that described claw fixture is connected with described fixed part is provided with U-shaped draw-in groove and can matches and screw tight with this U-shaped draw-in groove and described fixed part.
According to claim 1 to 3 arbitrary described rat claw periphery muscle tone measurement device, it is characterized in that, also comprise:
Display device, the numerical value that is used for receiving the digital signal of described signal processing unit output and shows the claw periphery muscle tone corresponding with this digital signal;
Man-machine interaction unit comprises keyboard and display, and this man-machine interaction unit is connected with described microprocessor, can and set described angular displacement and/or angular velocity by this keyboard input, and show the numerical value of described angular displacement and/or angular velocity by this display;
Power Management Unit, this Power Management Unit is connected with described servo-driver, microprocessor and signal processing unit respectively, is described servo-driver, microprocessor and signal processing unit power supply after alternating current power supply being converted to dc source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220487591 CN202920217U (en) | 2012-09-24 | 2012-09-24 | Rat paw periphery muscle tone measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220487591 CN202920217U (en) | 2012-09-24 | 2012-09-24 | Rat paw periphery muscle tone measuring device |
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| Publication Number | Publication Date |
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| CN202920217U true CN202920217U (en) | 2013-05-08 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201220487591 Expired - Fee Related CN202920217U (en) | 2012-09-24 | 2012-09-24 | Rat paw periphery muscle tone measuring device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102835966A (en) * | 2012-09-24 | 2012-12-26 | 王麟鹏 | Device and method for measuring peripheral muscle tension of rat paw |
| CN103654729A (en) * | 2013-12-12 | 2014-03-26 | 张军 | Pressing pain mechanics tester |
-
2012
- 2012-09-24 CN CN 201220487591 patent/CN202920217U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102835966A (en) * | 2012-09-24 | 2012-12-26 | 王麟鹏 | Device and method for measuring peripheral muscle tension of rat paw |
| CN103654729A (en) * | 2013-12-12 | 2014-03-26 | 张军 | Pressing pain mechanics tester |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20130924 |