CN212816276U - Wearable combined surface electromyography sensor - Google Patents
Wearable combined surface electromyography sensor Download PDFInfo
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- CN212816276U CN212816276U CN202021543657.XU CN202021543657U CN212816276U CN 212816276 U CN212816276 U CN 212816276U CN 202021543657 U CN202021543657 U CN 202021543657U CN 212816276 U CN212816276 U CN 212816276U
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Abstract
The utility model discloses a wearable combined surface electromyography sensor, wherein, a single surface electromyography sensor comprises a wearable shell, an embedded electrode and a lead electrode which can be contacted with the body surface, a circuit board and a battery are respectively arranged in the shell, wherein, the embedded electrode is used as a detection channel and is electrically connected with the circuit board; the lead electrode is used as another detection channel and is selectively and electrically connected with the circuit board through a plug connector; the circuit board is powered by a battery and is in communication connection with the upper computer; the utility model discloses can realize single, binary channels convenient mode switch, and mounting structure is simple compact, and the commonality is good, and the cost is lower relatively.
Description
Technical Field
The utility model belongs to the biomedical field, concretely relates to wearable combination formula surface myoelectricity sensor.
Background
The surface electromyogram sensor belongs to a sensor used in the technical field of biomedical engineering and bioelectricity control, and the working principle of the surface electromyogram sensor is mainly that electromyogram EMG is obtained by collecting electromyogram signals of target muscles through a body surface electrode, amplifying and processing the electromyogram signals and then sending the amplified and processed electromyogram signals to an upper computer. In the fields of rehabilitation medicine, sports medicine and the like, a plurality of surface electromyography sensors are generally required to be worn on a subject, acquire electromyography signals of a plurality of muscles when the subject walks or exercises, measure and evaluate muscle strength and fatigue of the muscles, force sequence of the plurality of muscles in a specific exercise mode and the like, and therefore a wearable surface electromyography sensor is required.
The conventional wearable surface electromyography sensor adopts a single-channel structure, is high in cost, can simultaneously measure less muscles, is large in installation size, and cannot realize single-channel and double-channel mode switching.
The applicant therefore wishes to seek technical solutions to improve on the above technical problems.
Disclosure of Invention
In view of this, the utility model aims at providing a wearable combination formula surface myoelectricity sensor can realize single, binary channels convenient mode switch, and mounting structure is simple compact, and the commonality is good, and the cost is lower relatively.
The utility model adopts the technical scheme as follows:
a wearable combined surface electromyography sensor comprises a wearable shell, wherein an embedded electrode and a lead electrode which can be contacted with the body surface, a circuit board and a battery are respectively arranged in the shell,
the embedded electrode is used as a detection channel and is electrically connected with the circuit board;
the lead electrode is used as another detection channel and is selectively and electrically connected with the circuit board through a plug connector;
the circuit board is powered by a battery and is in communication connection with the upper computer.
Preferably, the circuit board is provided with a preamplifier, a filter, an analog-to-digital converter, an MCU module and a communication module which are respectively and electrically connected, and the communication module adopts wired communication and/or wireless communication; the preamplifier is respectively electrically connected with the embedded electrode and the lead electrode and is used for amplifying the electromyographic signals collected by the electrodes, the analog-to-digital converter is electrically connected with the MCU module and is used for performing analog-to-digital conversion on the amplified and filtered signals to obtain digitized electromyographic signals, and the digitized electromyographic signals are sent to an upper computer through the communication module.
Preferably, a first circuit board and a second circuit board electrically connected are respectively mounted in the housing, wherein,
the first circuit board and the second circuit board are both powered by batteries;
the first circuit board is provided with the preamplifier, a filter and an analog-to-digital converter, and the preamplifier is electrically connected with the embedded electrode and the lead electrode respectively;
the second circuit board is provided with the MCU module and the communication module.
Preferably, the battery is disposed between the first circuit board and the second circuit board.
Preferably, the first circuit board and the second circuit board are electrically connected by using a flexible circuit board and/or pins.
Preferably, the embedded electrode is fixedly and electrically connected with the circuit board by adopting a welding pin; the circuit board is provided with a plug interface which is movably and electrically connected with the plug connector.
Preferably, the circuit board is provided with an acceleration sensor module and/or an IMU inertial measurement unit for detecting a motion parameter corresponding to a human body part attached to the wearable housing, transmitting the motion parameter to the MCU module, and transmitting the motion parameter to the upper computer through the communication module.
Preferably, the circuit board is provided with a battery charging interface for automatically charging the battery, and when the battery is in a charging state, the surface electromyography sensor is in a shutdown state.
Preferably, the housing includes a housing base body and a housing cover which are integrally mounted, the housing base body has a mounting space for mounting the embedded electrode and lead electrode plug connector, the circuit board and the battery, and the housing cover is provided with a key surface which is electrically connected to the circuit board.
Preferably, the surface of the shell substrate provided with the embedded electrode adopts an adhesive surface for adhering and contacting with a body surface.
Preferably, a plurality of the surface electromyography sensors used in combination are included; each surface electromyographic sensor is in wireless or wired communication connection with a repeater, and the repeaters are in wireless or wired communication connection with an upper computer so as to send digital electromyographic signals transmitted by the surface electromyographic sensors to the upper computer; the repeater can be used as a signal repeater between each surface electromyography sensor and an upper computer, and can also be used as a charger of each surface electromyography sensor to charge the battery of each surface electromyography sensor.
The utility model discloses a set up fixed embedded electrode, activity plug-in type lead wire electrode and constitute the wearable combination formula surface electromyography electric sensor that can carry out single channel, binary channels switching, can detect the electromyography EMG of 2 muscles simultaneously, also can carry out the electromyography EMG detection to single muscle, can also use simultaneously a plurality of wearable combination formula surface electromyography electric sensors, the simple operation, moreover the utility model provides an installation simple structure is compact, and the commonality is good, and is with low costs.
Drawings
Fig. 1 is a schematic diagram of a modular structure of a wearable combined surface electromyography sensor according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the electrical connection between the first circuit board and the second circuit board according to an embodiment of the present invention;
fig. 3 is a schematic structural diagram of the wearable combined surface electromyography sensor according to the specific embodiment of the present invention;
FIG. 4 is a schematic view of an electrical connection structure of the first circuit board and the second circuit board in another direction in FIG. 3
Fig. 5 is a schematic structural diagram of a plurality of surface electromyography sensors used in combination according to an embodiment of the present invention.
Detailed Description
The embodiment of the utility model discloses a wearable combined surface electromyography sensor, a single surface electromyography sensor comprises a wearable shell, an embedded electrode and a lead electrode which can be contacted with the body surface, a circuit board and a battery are respectively arranged in the shell, wherein the embedded electrode is used as a detection channel and is electrically connected with the circuit board; the lead electrode is used as another detection channel and is selectively and electrically connected with the circuit board through a plug connector; the circuit board adopts battery power supply, and circuit board and host computer communication connection.
In order to make the technical solutions in the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, but not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts shall belong to the protection scope of the present invention.
Referring to fig. 1, 2, 3 and 4, in a wearable combined surface electromyography sensor, a single surface electromyography sensor 1 includes a wearable housing 10, preferably, in this embodiment, the housing 10 includes a housing base 11 and a housing cover 12 which are integrally installed, the housing base 11 has an installation space 11a, the housing cover 12 is provided with a key surface 12a (keys are not shown) electrically connected to a circuit board, and a test instruction is input to the circuit board by operating the keys;
in the present embodiment, the embedded electrode 21 and the plug connector 22a, the circuit board and the battery 23 which can contact with the body surface are respectively installed in the installation space 11a of the housing base body 11, and preferably, in the present embodiment, the surface of the housing base body 11 provided with the embedded electrode 21 adopts an adhesive surface for bonding contact with the body surface, which is beneficial to quickly and effectively wearing; wherein, the embedded electrode 21 is used as a detection channel and is electrically connected with the circuit board; the lead electrode 22 is used as another detection channel and is selectively and electrically connected with a port of the circuit board through a plug-in connector 22 a; the circuit board is powered by a battery 23 and is in communication connection with an upper computer 24, and electromyographic signals obtained by the embedded electrodes 21/and the lead electrodes 22 are collected and processed and then transmitted to the upper computer 24 (usually a desktop computer or a tablet computer, or a mobile phone, etc.);
preferably, in order to realize a more convenient and efficient electrical connection structure, in the present embodiment, a first circuit board 31 and a second circuit board 32, which are electrically connected, are mounted in the housing, respectively, wherein,
the first circuit board 31 and the second circuit board 32 are both powered by the battery 23; preferably, the first circuit board 31 and the second circuit board 32 are electrically connected by using a flexible circuit board 33 and a pin 34 respectively; a battery 23 is arranged between the first circuit board 31 and the second circuit board 32, and the installation position of the battery 23 is designed to ensure that the first circuit board 31 and the second circuit board 32 have a sufficient and proper installation distance, so that the installation and the electrical connection of the pins 34 are facilitated;
the first circuit board 31 is provided with a preamplifier 31a, a filter 31b and an analog-to-digital converter 31c, and the preamplifier 31a is electrically connected with the embedded electrode 21 and the lead electrode 22 respectively; preferably, in the present embodiment, the embedded electrode 21 is fixedly electrically connected to the preamplifier 31a of the first circuit board 31 using the bonding pin 21 a; the first circuit board 31 is provided with a jack for making a movable electrical connection with the plug connector 22 a; the second circuit board 32 is provided with an MCU module 32a and a communication module 32 b; in the present embodiment, the communication module 32b employs wired communication and/or wireless (e.g., bluetooth or WIFI) communication, preferably wireless communication; the preamplifier 31a is electrically connected with the embedded electrode 21 and the lead electrode 22 respectively, and is used for amplifying the acquired signal and then filtering the acquired signal by the filter 31 b; the analog-to-digital converter 31c is electrically connected with the MCU module 32a, and is configured to perform analog-to-digital conversion on the amplified and filtered signals to obtain digitized electromyographic signals, and send the digitized electromyographic signals to the upper computer 24 through the communication module 32 b;
preferably, in this embodiment, the first circuit board 31 or the second circuit board 32 is provided with an acceleration sensor module and/or an IMU inertial measurement unit (which may be in a serial connection manner) for detecting a motion parameter corresponding to the electrode contact portion of the wearer, sending the motion parameter to the MCU module, and sending the motion parameter to the upper computer 24 through the communication module; when an acceleration sensor module is adopted, the motion acceleration parameters of the wearer can be obtained and can be sent to the upper computer 24 for further motion state analysis of the wearer, when an Inertial Measurement Unit (IMU) is adopted, the motion parameters of the wearer, such as the motion acceleration, the angular rate and the like, can be obtained and can be sent to the upper computer for further motion state analysis of the wearer, specifically and preferably, the 9-axis IMU-inertial measurement unit is connected to the serial port of the second circuit board 32 in an extended mode, and further comprehensive analysis is carried out through the motion acceleration and the angular rate of the wearer, the specific analysis process is common knowledge of technicians in the field, and the embodiment has no specific innovation, so that the description is not expanded one by one;
preferably, the first circuit board 31 or the second circuit board 32 is provided with a battery charging interface (not shown) for automatically charging the battery, and when the battery 23 is in a charging state, the surface electromyography sensor 1 is in a shutdown state; more preferably, in this embodiment, the battery charging interface is provided with 3 pins, two pins of the pins are used as charging pins to form a charging loop, the remaining pin is used as a charging detection pin, in a non-charging condition, the charging detection pin is in a high-level state, when the battery charging interface of the surface electromyography sensor 1 is inserted into a charging seat (not shown), the charging detection pin is grounded and converted into a low-level signal, the signal is detected by the MCU module 32a, and the MCU module 32a outputs a power-off instruction, so that the surface electromyography sensor 1 is in a power-off state; specifically, when the present embodiment is used, after the charging value of the battery 23 generally reaches 4.0V, it may be determined that charging is completed, and the battery charging interface of the surface electromyography sensor 1 may be detached from the charging seat, and of course, specific charging parameter settings may be specifically selected according to actual application requirements, which are not necessarily limited in the present embodiment;
as shown in fig. 5, in practical application, the present embodiment may include a plurality of combined surface electromyography sensors 1, each surface electromyography sensor 1 is connected to a relay 1 'in a wireless or wired communication manner, and the relay 1' is connected to an upper computer 24 in a wireless or wired communication manner, so as to send a digitized electromyography signal transmitted from the surface electromyography sensor 1 to the upper computer 24; the repeater 1' can be used as a signal repeater between each surface electromyography sensor 1 and the upper computer 24, and can also be used as a charger of each surface electromyography sensor 1 to charge the battery of each surface electromyography sensor; the technical proposal is provided because the practical design usually allows 8 sets of surface electromyography sensors 1 (equivalent to 16 channels) to be used simultaneously, and sometimes 2 sets or even 4 sets of surface electromyography sensors 1 are used simultaneously. With such a large number of surface electromyographic sensors 1, the amount of data required for communication connection is large (sampling rate 1K-4 Ksps, 16bits per data point per channel), and it is not practical to use direct wireless transmission to the upper computer 24 (such as a computer), so this embodiment suggests to use a high-performance repeater to collect and acquire these digitized electromyographic signal data by wireless communication, and then to transmit to the upper computer 24 (such as a computer) through a high-speed USB port or a high-speed WiFi, so that a more reliable data communication effect can be obtained, and communication obstacles are avoided; also belonging to the preferred technical scheme, the repeater 1' in this embodiment can be used as the charger of these surface electromyography sensors 1 at the same time, and can conveniently charge the battery of the surface electromyography sensors 1, thereby further simplifying the charging structure.
The wearable combined type surface electromyography sensor 1 capable of switching between a single channel and a double channel is formed by arranging the fixed embedded electrode 21 and the movable plug-in type lead electrode 22, electromyography EMG of 2 muscles can be detected simultaneously, electromyography EMG detection can also be performed on a single muscle, and the operation is convenient and fast; in practical application, the present embodiment may combine a plurality of surface electromyography sensors 1, and the process of the combined use mainly includes: the surface electromyographic sensors are respectively attached to different muscle parts related to finishing one exercise, so that the contraction sequence and the contraction strength of the muscles can be detected, the perfect degree of the exercise can be analyzed, the exercise achievement can be guided to be improved, the specific combined use and analysis process belongs to the common knowledge of technicians in the field, and the part is not used as the innovative technical content of the application, so the description is not expanded.
It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.
Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.
Claims (10)
1. A wearable combined surface electromyography sensor is characterized in that a single surface electromyography sensor comprises a wearable shell, an embedded electrode and a lead electrode which can be contacted with the body surface, a circuit board and a battery are respectively arranged in the shell, wherein,
the embedded electrode is used as a detection channel and is electrically connected with the circuit board;
the lead electrode is used as another detection channel and is selectively and electrically connected with the circuit board through a plug connector;
the circuit board is powered by a battery and is in communication connection with the upper computer.
2. The wearable combined surface electromyography sensor of claim 1, wherein the circuit board is provided with a preamplifier, a filter, an analog-to-digital converter, an MCU module and a communication module which are respectively and electrically connected, and the communication module adopts wired communication and/or wireless communication; the preamplifier is respectively and electrically connected with the embedded electrode and the lead electrode, the analog-to-digital converter is electrically connected with the MCU module, and the communication module is used for sending the digitized electromyographic signals to an upper computer.
3. The wearable combined surface electromyography sensor of claim 2, wherein a first circuit board and a second circuit board are mounted within the housing, respectively, that are electrically connected, wherein,
the first circuit board and the second circuit board are both powered by batteries;
the first circuit board is provided with the preamplifier, a filter and an analog-to-digital converter, and the preamplifier is electrically connected with the embedded electrode and the lead electrode respectively;
the second circuit board is provided with the MCU module and the communication module.
4. The wearable combined surface electromyography sensor of claim 3, wherein the battery is disposed between the first and second circuit boards.
5. The wearable combined surface electromyography sensor of claim 3, wherein the first circuit board and the second circuit board are electrically connected by a flexible circuit board and/or a pin.
6. The wearable combined surface electromyography sensor of claim 1 or 2, wherein the embedded electrode is fixedly electrically connected to the circuit board using a welding pin; the circuit board is provided with a plug interface which is movably and electrically connected with the plug connector.
7. The wearable combined surface electromyography sensor of claim 2, wherein the circuit board is provided with an acceleration sensor module and/or an IMU inertial measurement unit; the circuit board is provided with a battery charging interface for automatically charging the battery.
8. The wearable combined surface electromyography sensor of claim 1, wherein the housing comprises a housing base and a housing cover integrally mounted, the housing base having a mounting space for mounting the embedded electrode and lead electrode plug connector, the circuit board, and the battery, the housing cover having a key pad electrically connected to the circuit board.
9. The wearable combined surface electromyography sensor of claim 8, wherein the surface of the shell substrate provided with the embedded electrodes is an adhesive surface for adhesive contact with a body surface.
10. The wearable combined surface electromyography sensor of claim 1, comprising a plurality of the surface electromyography sensors used in combination; each surface electromyographic sensor is in wireless or wired communication connection with a repeater, and the repeaters are in wireless or wired communication connection with an upper computer, so that digital electromyographic signals transmitted by the surface electromyographic sensors are transmitted to the upper computer.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202021543657.XU CN212816276U (en) | 2020-07-30 | 2020-07-30 | Wearable combined surface electromyography sensor |
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| CN202021543657.XU CN212816276U (en) | 2020-07-30 | 2020-07-30 | Wearable combined surface electromyography sensor |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111820892A (en) * | 2020-07-30 | 2020-10-27 | 江苏德长医疗科技有限公司 | Wearable combined surface electromyography sensor |
| WO2023242449A1 (en) * | 2022-06-15 | 2023-12-21 | Universidad De Alicante | Sensorised device for rehabilitating a limb of the body |
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2020
- 2020-07-30 CN CN202021543657.XU patent/CN212816276U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111820892A (en) * | 2020-07-30 | 2020-10-27 | 江苏德长医疗科技有限公司 | Wearable combined surface electromyography sensor |
| WO2023242449A1 (en) * | 2022-06-15 | 2023-12-21 | Universidad De Alicante | Sensorised device for rehabilitating a limb of the body |
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