CN207928316U - Biological electrical signal collecting device - Google Patents
Biological electrical signal collecting device Download PDFInfo
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- CN207928316U CN207928316U CN201721172770.XU CN201721172770U CN207928316U CN 207928316 U CN207928316 U CN 207928316U CN 201721172770 U CN201721172770 U CN 201721172770U CN 207928316 U CN207928316 U CN 207928316U
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- Prior art keywords
- electrode
- fixing piece
- ionic conductor
- sleeve
- electrical signal
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000010416 ion conductor Substances 0.000 claims abstract description 87
- 239000008151 electrolyte solution Substances 0.000 claims abstract description 7
- 239000007787 solid Substances 0.000 claims description 17
- 210000004556 brain Anatomy 0.000 claims description 6
- 230000005611 electricity Effects 0.000 claims description 6
- 239000004020 conductor Substances 0.000 claims description 2
- 239000003792 electrolyte Substances 0.000 description 13
- 210000004761 scalp Anatomy 0.000 description 7
- 238000009434 installation Methods 0.000 description 5
- 238000005260 corrosion Methods 0.000 description 4
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- 230000005540 biological transmission Effects 0.000 description 2
- 239000000499 gel Substances 0.000 description 2
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- SDLBJIZEEMKQKY-UHFFFAOYSA-M silver chlorate Chemical compound [Ag+].[O-]Cl(=O)=O SDLBJIZEEMKQKY-UHFFFAOYSA-M 0.000 description 2
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- BQCADISMDOOEFD-UHFFFAOYSA-N Silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 238000009825 accumulation Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000019771 cognition Effects 0.000 description 1
- 230000001149 cognitive effect Effects 0.000 description 1
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- 239000003292 glue Substances 0.000 description 1
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- 238000012544 monitoring process Methods 0.000 description 1
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Landscapes
- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
The utility model is related to a kind of biological electrical signal collecting device, including eeg sensor and eeg amplifier, the eeg sensor includes fixing piece, electrode, sleeve and ionic conductor；The fixing piece inner wall is equipped with electrode, and its middle part is equipped with through-hole；The ionic conductor is the fixed-type entirety containing electrolyte solution；The sleeve is equipped with ionic conductor；When sleeve is inserted into fixing piece through-hole and is connected on fixing piece, the ionic conductor is contacted with electrode extruding, and the electrode is connect with external circuit, to form bioelectrical signals measuring loop.The utility model advantage is：Apparatus structure is reasonable, and while the sleeve of built-in ionic conductor is clamped with fixing piece, ionic conductor is contacted with the electrode extruding of connection external circuit, and stable connection, signal base line is steady and signal quality is high.
Description
Technical field
The utility model is related to a kind of biological electrical signal collecting devices, are widely used in biological electrographic recording, measurement and stimulation, packet
Include Medical Devices, mobile device, family health care, psychological cognition, game, brain-computer interface, rehabilitation training and nerve marketing etc..
Background technology
With the development of science and technology, bioelectrical signals（Such as brain electricity, electrocardio, myoelectricity）Acquisition has been widely used for each
The monitoring, diagnosing of kind the nervous system disease and the rehabilitation equipment of bioelectricity feedback.Eeg signal acquisition or cognitive psychological are ground
The important laboratory facilities studied carefully.Bioelectrical signals sensor is the critical component of bioelectricity harvester, by collected life
Object electric signal through conducting wire pass to the equipment such as discharger, computer be amplified, calculation process.Bioelectrical signals sensor is raw
The critical component of object electrical signal collection.
Brain electricity is a kind of common bioelectrical signals, weak output signal, generally microvolt grade.The transmission of EEG signals is in life
The intercellular fluid of object（Electrolyte）Middle progress, transmission of the substantially faint ion electric signal in electrolyte.Due to people
Body keratoderma and hair electric conductivity are very poor, electrode for encephalograms and human skin（Hair）Between impedance it is excessive, and contact not
Stablize, EEG signals will appear larger decaying by electrode and human skin interface, directly affect the acquisition of EEG signals.For
Accurate measure is carried out to brain electricity not have to invade subcutaneous formula electrode again, just has the application of the products such as electroconductive paste, conducting resinl, to provide
The environment of electrolyte forms ionic conducting path.The product helps such as conducting resinl or electroconductive paste bioelectricity travels to measurement from vivo
Electrode, form a good ion conductor interface between electrode and skin, internal faint ion electric signal converted
At electronic telecommunication number for measurement.This method that conducting resinl or electroconductive paste are coated between electrode and skin is exactly wide at present
The wet electrode technology of general application.Although wet electrode can reduce the impedance between electrode and skin, accurate EEG signals are obtained,
But it has the following disadvantages：Professional assistance is needed, and set-up procedure is cumbersome, time-consuming；Conductive paste can make hair dirty, and subject is caused not relaxed
It is suitable.The disadvantages mentioned above of wet electrode directly affects it applied to emerging brain electricity applications such as wearable devices.
To overcome the disadvantages mentioned above of wet electrode, people, which explore always, in recent years develops new electrode technology, that is, is not necessarily to coating
The electrode technology of conductive paste, i.e., without gel electrode technology.This kind of new electrode technology is mainly explored in two directions：When
Without using any additional electrolyte, i.e., dry electrode technology.Dry electrode has many advantages, such as no glue, quickly places, but electrode and skin
Interfacial instability, therefore impedance is high and unstable, signal quality is poor.Another thinking is half-dried electrode technology, that is, is used micro
Electrolyte substitute conductive paste, such as using porous ceramics, foam, gel material absorbed electrolyte, contact skin simultaneously slowly release
Microelectrolysis matter is put, to maintain stable electrode-skin surface, improves signal quality.
It is 205181340 U of CN with the immediate prior art of the utility model, discloses a kind of half-dried electrode sensor
Concept, the sensor are connect by tenon groove structure with fixing piece；Fixing piece is circular ring shape or block shape, in one plane
There is opening to be directed toward the locating slot in the middle through-hole center of circle, sensor is located in the middle through-hole of fixing piece, symmetrical on sensor periphery
It is provided with the positioning tenon for matching identical with locating slot, which is clamped with locating slot；Locating slot is equipped with and dispatch from foreign news agency
The electrical connector of line conductor unicom, the electrical connector connect unicom, conductive sheet and sensor with fixed conductive sheet on positioning tenon
In electrode electrical connection.The advantages of this sensor is：Sensor is independent accessory, is connected by electrical connector and external circuit
It connects, conducting wire is fixed on supporter in advance, and sensor installation, removal, replacement is quick and convenient, and same set of sensor can be at multiple
It uses, increases operation rate on support body, greatly reduce the damage of conducting wire.But still it has the disadvantages that：Electric connector connector is long
Phase uses, and is inevitably contacted with electrolyte, easy to wear and corrosion, to influence the conduction property of electrode and external circuit,
Influence eeg signal acquisition.
Invention content
The utility model aim is, overcome the prior art caused by the abrasion of electronic conductor connection component and corrosion electrode with
External circuit is not turned on problem, provides a kind of biological electrical signal collecting device, and the apparatus structure is reasonable, ionic conductor with connect it is outer
The electrode of circuit squeezes contact, while can effectively reach scalp, and can realize the Fast Installation of ionic conductor again, tear open
It unloads.
The technical solution of biological electrical signal collecting device provided by the utility model is：
A kind of biological electrical signal collecting device, including eeg sensor and eeg amplifier, the eeg sensor packet
Include fixing piece, electrode, sleeve and ionic conductor；The fixing piece inner wall is equipped with electrode, and its middle part is equipped with through-hole；It is described
Ionic conductor be the fixed-type entirety containing electrolyte solution；The sleeve is equipped with ionic conductor；Work as sleeve
When being inserted into fixing piece through-hole and being connected on fixing piece, the ionic conductor is contacted with electrode extruding, while can be effective
Scalp is contacted, the electrode is connect with external circuit, to form bioelectrical signals measuring loop.
Further technical solution is：
The biological electrical signal collecting device, sleeve cavity is interior at least provided with a notch, so that ionic conductor
Expose.
The biological electrical signal collecting device, sleeve cavity non-notch, the ionic conductor are whole from cavity
Interior stretching.
The biological electrical signal collecting device, sleeve lower end are solid post, and ionic conductor is sleeved on solid post surface；
When sleeve and fixing piece are clamped, the ion conductor at least one solid post surface is contacted with electrode extruding.
The biological electrical signal collecting device, electrode are electrode slice, and the electrode slice both ends are embedded in fixing piece
Both ends；When sleeve is connected in fixing piece, the ionic conductor expose from least one notch of cavity inner wall and with to
A few electrode slice squeezes contact.
The biological electrical signal collecting device, electrode are electrode column, and one end is embedded or is bonded in fixing piece inner wall,
The other end is towards in fixing piece；The ionic conductor exposes from least one notch of cavity inner wall, and at least one electricity
Pole squeezes contact.
The biological electrical signal collecting device, electrode are electrode column, and number is 1, is located at fixed inner wall lower end；When
When sleeve is connected in fixing piece, the ionic conductor is contacted from cavity external part with electrode column extruding.
The biological electrical signal collecting device, electrode are electrode column, and number is multiple；Or the highland such as uniform is arranged in
Fixing piece inner wall lower end, when sleeve is connected in fixing piece, the ionic conductor is from cavity section of stretching out and multiple electrodes column
Squeeze contact；Or uniformly non-contour it is arranged in fixing piece inner wall lower end, when sleeve is connected in fixing piece, the ionic conduction
Body external part is staggeredly contacted with multiple electrodes extruding.
The biological electrical signal collecting device, electrode are electrode slice；When sleeve is connected in fixing piece, it is described from
Subconductivity body is contacted from cavity section of stretching out with the extruding of at least one electrode slice.
The biological electrical signal collecting device, electrode slice are the electrode slice of two parallel arrangements, the spacing of electrode slice
Less than the radius of ionic conductor；Or the electrode slice is three or more, forms regular polygon, inscribed circle radius is less than
The radius of ionic conductor.
The biological electrical signal collecting device, electrode are wire electrode or/and electrode clusters, are exposed in fixing piece
Wall surface；When sleeve is connected in fixing piece, the ionic conductor is from cavity section of stretching out and wire electrode or/and electrode clusters
Contact.
The acquiring biological electric signals dress, sleeve lower end are equipped with multiple solid posts, and each solid post is cased with ion and leads
Electric body.
The biological electrical signal collecting device, ionic conductor is fixed on cavity inside, or directly inserts in cavity.
The biological electrical signal collecting device, ion conductor body are the hydrogel for being filled electrolyte solution, water suction fibre
Dimension, sponge, foam, porous ceramics one kind or combination thereof.
The utility model advantageous effect is：
1. biological electrical signal collecting device provided by the utility model, sleeve and the fixing piece of built-in ionic conductor are clamped
While, ionic conductor is squeezed with the electrode for being connected with external circuit and is contacted, and compared with prior art, effectively prevents leading because of electronics
Body connector is worn or corrosion causes to be not turned on problem, is contacted by squeezing, and ionic conductor contacts stabilization, signal base with electrode
Line is steady and signal quality is high.
2. the sleeve of biological electrical signal collecting device provided by the utility model, built-in ionic conductor is independent accessory,
Installing and dismounting is quick and convenient, can both be used as medical disposable material, can also be repeated as many times and use again.Derivative can also be measured according to practical
Needs flexibly install, the number and location of the sleeve of built-in ionic conductor can adjust, and same supporter need to only pass through tune
Whole riding position and number can meet the requirement of different application.In addition, can be pre- by the middle through-hole of fixing piece before installation
It handles scalp and pushes hair aside, to reach satisfied record effect.
3. biological electrical signal collecting device provided by the utility model, ionic conductor with positioned at fixing piece inner wall lower end
Electrode slice or electrode column contact, electrode is closer from scalp, shortens ionic conduction access, improves signal-to-noise ratio.In addition, fixing piece
Electrolyte in the ionic conduction body of inner wall lower end finally dries up, and also extends the signal record time to a certain extent.
Description of the drawings
Fig. 1 is the schematic diagram of the fixing piece of biological electrical signal collecting device.
Fig. 2 is the schematic diagram of the sleeve of biological electrical signal collecting device.
Fig. 3 is the sleeve schematic diagram of the built-in ionic conductor of biological electrical signal collecting device.
While Fig. 4 is that ionic conductor built in biological electrical signal collecting device and fixing piece are clamped, ionic conductor with
Electrode squeezes the schematic diagram of contact.
In figure：1- fixing pieces；1.1- locating slot；1.2- refers to handle；2- electrodes；2.1- electrode slice；3- sleeves；3.1- positioning
Tenon；4- ionic conductors；5- notches.
Specific implementation mode
The utility model is described in further detail with reference to the accompanying drawings and embodiments：
Embodiment 1：It is one basic embodiment of the utility model.As shown in Figs 1-4, a kind of acquiring biological electric signals dress
It sets, including eeg sensor and eeg amplifier, the eeg sensor includes that fixing piece 1, electrode 2, sleeve 3 and ion are led
Electric body 4；1 inner wall of fixing piece is equipped with electrode 2, and middle part is equipped with through-hole；The ionic conductor 4 is to contain electrolyte
The fixed-type entirety of solution；The sleeve is equipped with ionic conductor 4；When sleeve 3 is inserted into fixing piece through-hole and is clamped
When on fixing piece 1, the ionic conductor 4 is contacted with the extruding of electrode 2, and the electrode is connect with external circuit, to shape
At bioelectrical signals measuring loop.
Compared with prior art, biological electrical signal collecting device provided by the utility model, the set of built-in ionic conductor
While cylinder is clamped with fixing piece, ionic conductor is squeezed with the electrode for being connected with external circuit and is contacted, and is effectively prevented because of electrical connection
Part is worn or corrosion causes to be not turned on problem, is contacted by squeezing, and ionic conductor contacts stabilization with electrode, and signal base line is steady
And signal quality is high.The sleeve of built-in ionic conductor is independent accessory simultaneously, and installing and dismounting is quick and convenient, can both be used as one
Secondary property consumptive material（For the clinical place such as emergency ward）, can also be repeated as many times and use again（Common bioelectrical signals record）.It can also root
According to needing flexibly to install, the number and location of the sleeve of built-in ionic conductor can adjust, and same supporter need to only pass through tune
Whole riding position and number can meet the requirement of different application.In addition, can in advance be located by the middle through-hole of fixing piece before installation
It manages skin and pushes hair aside, to reach satisfied record effect.
Embodiment 2：It is further embodiment.As shown in Fig. 2, ionic conductor 4 built in the cavity of the sleeve, and
At least provided with a notch 5, so that ionic conductor 4 exposes.When the sleeve cavity non-notch, the ionic conductor
It is whole to be stretched out out of cavity, then it is equivalent embodiment.When sleeve lower end is solid post, ionic conductor is sleeved on solid post table
Face, when sleeve and fixing piece clamping, the ion conductor at least one solid post surface is contacted with electrode extruding, then is another etc.
Same embodiment.
Embodiment 3：It is further embodiment.The electrode is electrode slice, and the electrode slice both ends are embedded in solid
The both ends of part are determined, to which fixing piece is divided into bowed cavity, to slight squeeze electrode slice, with the electrode for connecting external circuit
Form stable contact；When sleeve is connected in fixing piece, the ionic conductor reveals from least one notch of cavity inner wall
Go out and is contacted with the extruding of at least one electrode slice.
Embodiment 4：It is further embodiment.The electrode is electrode column, and one end is embedded or is bonded in fixing piece
Inner wall, the other end is towards in fixing piece；The ionic conductor exposes from least one notch of cavity inner wall, and at least one
A electrode column squeezes contact.
Embodiment 5：It is further embodiment.The electrode is electrode column, and number is 1, is located under fixed inner wall
End.When sleeve is connected in fixing piece, the ionic conductor is contacted from cavity external part with electrode column extruding.Advantage be from
Subconductivity body and electrode contact site are closer from scalp, shorten ionic conduction access, improve signal-to-noise ratio.In addition, fixing piece
Electrolyte in the ionic conduction body of inner wall lower end finally dries up, and also extends the signal record time to a certain extent.
Embodiment 6：It is further embodiment.The electrode is electrode column, and number is multiple, uniformly highland is waited to arrange
In fixing piece inner wall lower end.When sleeve is connected in fixing piece, the ionic conductor is from cavity section of stretching out and multiple electrodes column
Squeeze contact.Advantage is increased contact area, reduces electrode-skin impedance.As long as there are one electrode column contacts to add,
It can realize conducting, increase the stability of record.In addition, ionic conductor and electrode contact site it is closer from scalp, shorten from
Subconductivity access, improves signal-to-noise ratio.Electrolyte in the ionic conduction body of fixing piece inner wall lower end finally dries up, in certain journey
Also the signal record time is extended on degree.
When electrode be electrode column, number be it is multiple, uniformly it is non-it is contour be arranged in fixing piece inner wall lower end, when sleeve is connected in
When fixing piece, the ionic conductor external part is staggeredly contacted with multiple electrodes extruding, then is other embodiment.Advantage
It is：Interlacing contact, ionic conductor is contacted with electrode more to be stablized.Contact area is also added simultaneously, reduces electrode-skin
Impedance.As long as there are one electrode column contacts to add, it can be achieved with being connected, increase the stability of record.
Embodiment 7：It is further embodiment.The electrode is electrode slice, described when sleeve is connected in fixing piece
Ionic conductor contacted from the extruding of cavity section of stretching out and at least one electrode slice.
Embodiment 8：It is further embodiment.The electrode slice is the electrode slice of two parallel arrangements, electrode slice
Spacing is slightly less than the radius of ionic conductor, in this way by slight extruding, can be achieved with stablizing with the electrode for connecting external circuit
Contact, while avoiding squeezing excessive, internal electrolyte solution fast dissipation again, to cause skin surface electrolyte to accumulate
It is more, cause the uncomfortable of subject.When the electrode slice be three or more, form regular polygon（As equilateral triangle, diamond shape,
Regular pentagon etc.）, inscribed circle radius be less than ionic conductor radius, both realized in this way with connect external circuit electrode stabilization
Contact avoids squeezing excessive, internal electrolyte solution fast dissipation, to cause the accumulation of skin surface electrolyte excessive, draws
Play the uncomfortable of subject；The contact area for also increasing ionic conductor and electrode slice advantageously reduces electrode-skin impedance；
The stability of contact is also improved simultaneously.
Embodiment 9：It is further embodiment.The electrode is wire electrode or/and electrode clusters, is exposed to fixation
Part inner wall surface；When sleeve is connected in fixing piece, the ionic conductor is from cavity section of stretching out and wire electrode or/and electrode
Clusters contact, and increase the reliability that ionic conductor is contacted with electrode in this way.
Embodiment 10：It is further embodiment.The sleeve lower end is equipped with multiple solid posts, and each solid post is cased with
Ionic conductor.Advantage is multiple solid posts can penetrate dense hair as comb, preferably electrode be maintained to be contacted with scalp,
Signal acquisition quality is improved, women brain wave acquisition is particularly suitable for.
Embodiment 11：It is further embodiment.The ionic conductor is fixed on by modes such as bondings in cavity
Portion avoids the occurrence of ionic conductor and falls off in installation or removal process, is suitble to repeatedly use.When built-in ionic conductor
Sleeve is as medical disposable material in use, also can directly will be in ionic conductor insertion sleeve cavity.
Embodiment 12：It is further embodiment.Picture 1-4, the sleeve 2 of the built-in ionic conductor 4 passes through tenon
Slot structure is connect with fixing piece 1；Fixing piece is circular ring shape or block shape, has opening to be directed toward the middle through-hole center of circle in one plane
Locating slot 1.1, the sleeve 2 of built-in ionic conductor 4 is located in the middle through-hole of fixing piece, is symmetrical arranged on 2 periphery of sleeve
There is the positioning tenon for matching identical with locating slot, which is clamped with locating slot.The locating slot is half opening knot
Structure facilitates positioning.The fixing piece points to hand 1.2 equipped with a pair, with the fingerhold position, is easily installed or dismantles.Institute
The ion conductor body stated is one or more combinations of the hydrogel for being filled electrolyte solution, foam, porous ceramics, is preferably steeped
Cotton.The electrode slice is that fine silver plates silver chlorate.The electrode column is the powder sintered electrode of silver/silver chlorate.
The claims of the utility model are not limited to the above embodiments.
Claims (13)
1. a kind of biological electrical signal collecting device, including eeg sensor and eeg amplifier, it is characterised in that：The brain electricity
Sensor includes fixing piece, electrode, sleeve and ionic conductor；The fixing piece inner wall is equipped with electrode, and its middle part is equipped with
Through-hole；The ionic conductor is the fixed-type entirety containing electrolyte solution；The sleeve is led equipped with ion
Electric body；When sleeve is inserted into fixing piece through-hole and is connected on fixing piece, the ionic conductor is contacted with electrode extruding, institute
The electrode stated is connect with external circuit, to form bioelectrical signals measuring loop.
2. biological electrical signal collecting device according to claim 1, which is characterized in that ion built in the sleeve cavity
Electric conductor, and at least provided with a notch, so that ionic conductor exposes.
3. biological electrical signal collecting device according to claim 1, which is characterized in that intact in the sleeve cavity
Mouthful, the ionic conductor is integrally stretched out out of cavity.
4. biological electrical signal collecting device according to claim 1, which is characterized in that the sleeve lower end is solid post,
Ionic conductor is sleeved on solid post surface；When sleeve and fixing piece are clamped, the ion conductor at least one solid post surface with
Electrode squeezes contact.
5. biological electrical signal collecting device according to claim 2, which is characterized in that the electrode is electrode slice, institute
The electrode slice both ends stated are embedded in the both ends of fixing piece；When sleeve is connected in fixing piece, the ionic conductor is from cavity
At least one notch of inner wall exposes and is contacted with the extruding of at least one electrode slice.
6. biological electrical signal collecting device according to claim 2, which is characterized in that the electrode is electrode column,
One end is embedded or is bonded in fixing piece inner wall, and the other end is towards in fixing piece；The ionic conductor from cavity inner wall at least
One notch exposes, and is contacted with the extruding of at least one electrode column.
7. biological electrical signal collecting device according to claim 3, which is characterized in that the electrode is electrode column, number
Mesh is 1, is located at fixed inner wall lower end；When sleeve is connected in fixing piece, the ionic conductor from cavity external part with
Electrode column squeezes contact.
8. biological electrical signal collecting device according to claim 3, which is characterized in that the electrode is electrode column, number
Mesh is multiple；Or the highland such as uniform is arranged in fixing piece inner wall lower end, when sleeve is connected in fixing piece, the ionic conduction
Body is contacted from cavity section of stretching out with the extruding of multiple electrodes column；Or uniformly it is non-it is contour be arranged in fixing piece inner wall lower end, when sleeve card
When being connected to fixing piece, the ionic conductor external part is staggeredly contacted with multiple electrodes extruding.
9. biological electrical signal collecting device according to claim 3, which is characterized in that the electrode is electrode slice；When
When sleeve is connected in fixing piece, the ionic conductor is contacted from cavity section of stretching out with the extruding of at least one electrode slice.
10. biological electrical signal collecting device according to claim 9, which is characterized in that the electrode slice is two flat
The electrode slice of row arrangement, the radius for being smaller than ionic conductor of electrode slice；Or the electrode slice is three or more, group
At regular polygon, inscribed circle radius is less than the radius of ionic conductor.
11. biological electrical signal collecting device according to claim 3, which is characterized in that the electrode be wire electrode or/and
Electrode clusters are exposed to fixing piece inner wall surface；When sleeve is connected in fixing piece, the ionic conductor is stretched from cavity
Go out section to contact with wire electrode or/and electrode clusters.
12. biological electrical signal collecting device according to claim 4, which is characterized in that the sleeve lower end is equipped with more
A solid post, each solid post are cased with ionic conductor.
13. biological electrical signal collecting device according to claim 1, which is characterized in that the ionic conductor is fixed
In cavity inside.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721172770.XU CN207928316U (en) | 2017-09-13 | 2017-09-13 | Biological electrical signal collecting device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721172770.XU CN207928316U (en) | 2017-09-13 | 2017-09-13 | Biological electrical signal collecting device |
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| Publication Number | Publication Date |
|---|---|
| CN207928316U true CN207928316U (en) | 2018-10-02 |
Family
ID=63644451
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721172770.XU Withdrawn - After Issue CN207928316U (en) | 2017-09-13 | 2017-09-13 | Biological electrical signal collecting device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107440715A (en) * | 2017-09-13 | 2017-12-08 | 武汉格林泰克科技有限公司 | A kind of biological electrical signal collecting device |
-
2017
- 2017-09-13 CN CN201721172770.XU patent/CN207928316U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107440715A (en) * | 2017-09-13 | 2017-12-08 | 武汉格林泰克科技有限公司 | A kind of biological electrical signal collecting device |
| CN107440715B (en) * | 2017-09-13 | 2024-08-16 | 武汉格林泰克科技有限公司 | Bioelectric signal acquisition device |
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| AV01 | Patent right actively abandoned | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20181002 Effective date of abandoning: 20240816 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20181002 Effective date of abandoning: 20240816 |