CN110420024A - A kind of collector for collecting electric signals on human facial muscle - Google Patents

Abstract

The invention belongs to the technical field of medical devices, and is specifically a human body surface electromyography signal collector, which includes an outer frame, a side box, an inner frame and a collection rod. The right side wall of the outer frame is fixedly connected to the side wall by bolts. Box, the bottom of the inner cavity of the outer frame is fixedly connected to the inner frame by bolts. This kind of human body surface electromyography signal collector can use the retractor inside the acquisition rod to cooperate with the telescopic wire to extend and shrink, which can effectively increase The flexibility of surface electromyography signal acquisition, the addition of fixed stickers, reduces the chance of shaking the collection patch, and ensures the stability of surface electromyography signal acquisition. After the surface electromyography signal is collected, the signal passes through the collector. Comparing the preset reference voltage in the controller can make the collected surface electromyographic signal reach the preset standard, reduce the pressure of later demodulation, and improve efficiency.

Description

A human body surface electromyography signal collector

technical field

The invention relates to the technical field of medical devices, in particular to a human body surface electromyography signal collector.

Background technique

EMG signal is the temporal and spatial superposition of motor unit action potentials in numerous muscle fibers. Surface electromyography is the combined effect of superficial muscle EMG and nerve trunk electrical activity on the skin surface, which can reflect neuromuscular activity to a certain extent, so it is widely used in clinical medicine, ergonomics, rehabilitation medicine and sports science. All have important practical value.

Among them, the myoelectric signal acquisition device is a kind of equipment that cooperates with the acquisition of myoelectric signals. As a collector of the comprehensive effect of superficial muscle EMG and nerve trunk electrical activity on the skin surface, it is useful for clinical medicine, ergonomics, and rehabilitation medicine. As well as sports science and other aspects are of great value.

The existing human body surface electromyography signal collector, in the process of collecting surface electromyography signals that are not used, has different collection positions and cannot effectively cooperate flexibly. After the collection patch contacts the human body surface, it is affected by the drooping of the wire gravity And the shaking of the human body itself will cause the acquisition patch to loosen, which will reduce the stability of surface EMG signal acquisition and limit the accuracy of data acquisition, which greatly affects the stability of data, and the strong surface EMG signal of the human body There is a difference between weak and weak. After the EMG signal is acquired, it is necessary to carry out post-demodulation in a unified manner, which reduces the efficiency of data acquisition.

Contents of the invention

The object of the present invention is to provide a kind of human body surface electromyography signal collector, to solve the existing human body surface electromyography signal collector proposed in the above-mentioned background technology, in the face of the surface electromyography signal acquisition process that is not used, the collected Different positions make it impossible to cooperate effectively and flexibly. After the collection patch is in contact with the human body surface, the collection patch will become loose due to the influence of the sagging of the wire gravity and the shaking of the human body itself, which will reduce the stability of surface EMG signal collection. The accuracy of data acquisition is limited, which greatly affects the stability of the data, and the strength of the human body surface EMG signal is different. After the EMG signal is acquired, it needs to be demodulated in a unified way, which reduces the efficiency of data acquisition. question.

In order to achieve the above object, the present invention provides the following technical solutions: a human body surface electromyography signal collector, comprising an outer frame, a side box, an inner frame and a collection rod, the right side wall of the outer frame is fixedly connected to the side wall by bolts. box, the bottom of the inner cavity of the outer frame is fixedly connected to the inner frame by bolts, the left side wall of the outer frame is screwed to the collection rod, and the top of the outer frame is fixedly connected to a hinge by screws. The top of the hinge is fixedly connected with a clamshell, the top of the clamshell is provided with a through window, the bottom of the inner cavity of the side box is fixedly connected with a microcontroller, and the bottom of the inner cavity of the side box is fixedly connected with a screw. There is a receiving demodulator, the microcontroller and the receiving modulator are electrically connected by wires, the bottom of the inner cavity of the inner frame is fixedly connected with a collector by screws, and the input end of the collector is connected by a wire The frequency conversion controller is electrically connected, the output end of the collector is electrically connected to a filter amplifier through a wire, the output end of the filter amplifier is electrically connected to the input end of the microcontroller through a wire, and the inner frame The top of the main body is fixedly connected with a host by bolts, the top of the main unit is fixedly connected with a display screen by screws, the inside of the collection rod is bonded with an inner pad, the top of the collection rod is threaded with a fixing bolt, and the collection rod The inner cavity of the retractor is fixedly connected with a retractor through screws, and the outer wall of the retractor is wound with a telescopic wire, and the right side wall of the telescopic wire is electrically connected with the input end of the collector, and the left side wall of the telescopic wire is electrically connected. There are sub-conductors connected to each other, the ends of the sub-conductors are electrically connected to collection patches, and the outer wall of the stretchable conductors is sleeved with fixed patches.

Preferably, the front side wall of the outer frame is connected with a door leaf through a hinge, and the area of the flip cover is the same as the top area of the outer frame.

Preferably, an inner panel is inlaid inside the through window, and the material of the inner panel is a transparent toughened glass plate.

Preferably, a round hole is opened on the top of the collection rod, and a fixing bolt is threadedly connected to the inner wall of the round hole, and the material of the fixing bolt and the inner pad is a rubber stick.

Preferably, the top of the fixed sticker is integrally formed with a round sleeve, the inner diameter of the circular sleeve is the same as the diameter of the telescopic wire, and the bottom of the fixed sticker is bonded with a suction cup.

Preferably, the number of the sub-conductors and the collection patches is three, and the output ends of the three collection patches are electrically connected to the telescopic conductors through the three sub-conductors.

Compared with the prior art, the beneficial effect of the present invention is: this kind of human body surface electromyography signal collector, through the combined use of accessories, can use the retractor inside the collection rod to cooperate with the telescopic wire to extend and shrink, and cooperate with the sub-wire The acquisition patch at the end can effectively increase the flexibility of surface electromyography signal acquisition, adding a fixed sticker can assist in fixing after the acquisition position is determined, reducing the chance of the acquisition patch shaking, ensuring stable acquisition of surface electromyography signals, and After the surface electromyography signal is collected, when the signal passes through the collector, cooperate with the frequency conversion controller, and use the preset reference voltage in the frequency conversion controller for comparison, so that the collected surface electromyography signal can reach the preset standard and reduce the later demodulation Pressure, efficiency improvement.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Fig. 2 is the internal schematic diagram of structure of the present invention;

Fig. 3 is a schematic diagram of the structure of the collection rod of the present invention.

In the figure: 100 outer frame, 110 door leaf, 120 hinge, 130 clamshell, 140 through window, 200 side box, 210 microcontroller, 220 receiving demodulator, 300 inner frame, 310 collector, 320 frequency conversion controller, 330 Filter amplifier, 340 host, 350 display screen, 400 collection rod, 410 inner pad, 420 fixed bolt, 430 retractor, 440 telescopic wire, 450 fixed sticker, 460 sub-wire, 470 collection patch.

Detailed ways

The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

The present invention provides a human body surface electromyography signal collector, through the combined use of accessories, the flexibility of surface electromyography signal collection can be improved, and the efficiency of data acquisition can be increased. Please refer to Figures 1-3, including an outer frame 100, a side box 200, inner frame 300 and collection rod 400;

Please refer to Fig. 1-2 again, the front side wall of the outer frame 100 has a door leaf 110, specifically, the front side wall of the outer frame 100 is connected with the door leaf 110 through a hinge, the area of the flip cover 130 is the same as the top area of the outer frame 100, the outer The top of the frame 100 is fixedly connected with a hinge 120 by screws, the top of the hinge 120 is fixedly connected with a flip cover 130, and the top of the flip cover 130 is provided with a through window 140;

Please refer to Fig. 2 again, the left side wall of the side box 200 is fixedly installed with the right side wall of the outer frame 100, specifically, the right side wall of the outer frame 100 is fixedly connected to the side box 200 by bolts, and the bottom of the inner cavity of the side box 200 passes through The micro-controller 210 is fixedly connected with the screw, and the bottom of the inner cavity of the side box 200 is fixedly connected with the receiving demodulator 220 by screws, and the micro-controller 210 and the receiving modulator 220 are electrically connected through wires;

Please refer to Fig. 2 again, the bottom of the inner frame 300 is fixedly installed with the bottom of the inner cavity of the outer frame 100, specifically, the bottom of the inner cavity of the outer frame 100 is fixedly connected to the inner frame 300 by bolts, and the bottom of the inner cavity of the inner frame 300 is fixed by screws The collector 310 is connected, the input end of the collector 310 is electrically connected to the frequency conversion controller 320 through a wire, the output end of the collector 310 is electrically connected to a filter amplifier 330 through a wire, and the output end of the filter amplifier 330 is connected to a micro-controller through a wire. The input terminal of the detector 210 is electrically connected, the top of the inner frame 300 is fixedly connected with the host 340 by bolts, and the top of the host 340 is fixedly connected with the display screen 350 by screws, wherein the collector 310 collects the surface electromyographic signals, and the frequency conversion controller 320 contains a chip inside, and the preset threshold value in the chip can be compared with the collected voltage, so that the collected surface electromyographic signal reaches the preset standard. The filter amplifier 330 can amplify and filter the collected surface electromyographic signal. The micro-controller 210 can perform analog-to-digital conversion processing on the surface electromyography signal to achieve an output effect, and the receiving demodulator 220 can demodulate the surface electromyography signal of the analog signal, which is convenient to cooperate with the host computer 340 to receive and cooperate with the display screen 350 For data display, the models of collector 310, frequency conversion controller 320, filter amplifier 330, microcontroller 210 and receiver demodulator 220 can be selected from common, commonly used or more commonly used equipment on the market to meet the operating environment and economic budget. as a measure

Please refer to Fig. 2-3 again, the right side wall of the collection rod 400 is fixedly installed with the left side wall of the outer frame 100, specifically, the left side wall of the outer frame 100 is threadedly connected to the collection rod 400, and the inside of the collection rod 400 is bonded with The inner pad 410, the top of the collection rod 400 is threadedly connected with the fixed bolt 420, the inner cavity of the collection rod 400 is fixedly connected with the telescopic device 430 by screws, the outer wall of the telescopic device 430 is wound with a telescopic wire 440, and the right side wall of the telescopic wire 440 is It is electrically connected to the input end of the collector 310, the left side wall of the telescopic wire 440 is electrically connected to the sub-wire 460, the end of the sub-wire 460 is electrically connected to the collection patch 470, and the outer wall of the telescopic wire 440 is sleeved with a fixed paste 450;

In specific use, first place the device on a suitable position, pull the telescopic wire 440, so that the telescopic wire 440 moves in the telescopic device 430, rotate the fixed bolt 420 after determining the length, and the fixed bolt 420 falls and fits the inner pad 410. Fix and limit the telescopic wire 440, use the collection patch 470 at the end of the sub-wire 460 to fit the surface of the human body, and then cooperate with the fixed sticker 450 to fix it, so as to reduce the gravity drop of the telescopic wire 440 and the collection patch caused by the movement of people In the case of 470 shaking and separation, when the data is collected, it will be passed to the collector 310, and the chip in the frequency conversion controller 320 connected to the collector 310 contains a preset threshold value to compare the data of the electromyographic signal, and the filter amplifier The 330 can amplify and filter the collected surface electromyography signals, and cooperate with the microcontroller 210 to perform analog-to-digital conversion processing on the surface electromyography signals to achieve the output effect, and then the receiving demodulator 220 can analyze the surface electromyography signals of the analog signals The electrical signal is demodulated, and the host computer 340 is used to receive it, and then the display screen 350 is used to display the data.

Please refer to FIG. 2 again. In order to facilitate observation of the display screen 350 , specifically, an inner panel is inlaid inside the transparent window 140 , and the material of the inner panel is a transparent toughened glass plate.

Please refer to Fig. 3 again, in order to limit the telescopic wire 440, specifically, the top of the collection rod 400 is provided with a circular hole, and the inner wall of the circular hole is threaded with a fixed bolt 420, and the material of the fixed bolt 420 and the inner pad 410 is rubber stick.

Please refer to Fig. 3 again, in order to make the fixed patch 450 can be fixed with adsorption and improve the stability of the collection patch 470, specifically, the top of the fixed patch 450 is integrally formed with a round sleeve, the inner diameter of the round sleeve and the diameter of the telescopic wire 440 Similarly, the bottom of the fixing sticker 450 is bonded with a suction cup.

Please refer to FIG. 3 again. In order to perform regional collection, multiple collection points are ensured. Specifically, the number of sub-conductors 460 and collection patches 470 is three, and the output ends of the three collection patches 470 pass through three sub-conductors. 460 is electrically connected to the telescopic wire 440 .

While the invention has been described above with reference to the embodiments, various modifications may be made thereto and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features in the embodiments disclosed in the present invention can be used in combination with each other in any way, and the description of these combinations is not exhaustive in this specification only to show In consideration of omitting space and saving resources. Therefore, the present invention is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims (6)

1. a kind of collector for collecting electric signals on human facial muscle, it is characterised in that: including outline border (100), side case (200), inside casing (300) With acquisition bar (400), the right side wall of the outline border (100) is bolted to connection the side case (200), the outline border (100) intracavity bottom is bolted to connection the inside casing (300), and the left side wall of the outline border (100) is threadedly coupled institute Acquisition bar (400) is stated, has been fixed by screws hinge (120) at the top of the outline border (100), the hinge (120) Top has been fixed by screws flip lid (130), is offered window (140) at the top of the flip lid (130), the side case (200) intracavity bottom has been fixed by screws microcontroller (210), and the intracavity bottom of the side case (200) passes through Screw, which is fixedly connected with, receives demodulator (220), leads between the microcontroller (210) and the reception demodulator (220) Conducting wire electric connection is crossed, the intracavity bottom of the inside casing (300) has been fixed by screws collector (310), the acquisition The input terminal of device (310) is electrically connected with frequency-variable controller (320) by conducting wire, and the output end of the collector (310) passes through Conducting wire is electrically connected with filter amplifier (330), and the output end of the filter amplifier (330) passes through conducting wire and the miniature control The input terminal of device (210) processed is electrically connected, and has been bolted to connection host (340) at the top of the inside casing (300), described It has been fixed by screws at the top of host (340) display screen (350), the inside of acquisition bar (400) is bonded with interior pad (410), the screw top of acquisition bar (400) is connected with fixing bolt (420), and the inner cavity of acquisition bar (400) passes through spiral shell Silk is fixedly connected with expansion bend (430), and the outer circumferential walls of expansion bend (430) are wound with stretch conducting wire (440), the stretch conducting wire (440) input terminal of right side wall and the collector (310) is electrically connected, and the left side wall of the stretch conducting wire (440) is electrical It is connected with intraphase conductor (460), the end of the intraphase conductor (460) is electrically connected with acquisition patch (470), the stretch conducting wire (440) outer circumferential walls are socketed with fixed patch (450).

2. a kind of collector for collecting electric signals on human facial muscle according to claim 1, it is characterised in that: the outline border (100) Front side wall be connected by a hinge and have door leaf (110), the area of the flip lid (130) and the topside area of the outline border (100) It is identical.

3. a kind of collector for collecting electric signals on human facial muscle according to claim 1, it is characterised in that: the window (140) Inside be inlaid with inner panel, the material of the inner panel is transparent toughened glass plate.

4. a kind of collector for collecting electric signals on human facial muscle according to claim 1, it is characterised in that: the acquisition bar (400) circular hole is offered at the top of, the circumferential inner wall of the circular hole is threaded with fixing bolt (420), the fixing bolt (420) Material with the interior pad (410) is rubber stick.

5. a kind of collector for collecting electric signals on human facial muscle according to claim 1, it is characterised in that: the fixed patch (450) top, which is integrally formed, is connected with round set, and the internal diameter of the circle set is identical with the diameter of the stretch conducting wire (440), institute The bottom for stating fixed patch (450) is bonded with sucker.

6. a kind of collector for collecting electric signals on human facial muscle according to claim 1, it is characterised in that: the intraphase conductor (460) and the quantity of acquisition patch (470) is three, and the output end of three acquisitions patch (470) passes through three institutes Intraphase conductor (460) and the stretch conducting wire (440) are stated to be electrically connected.