CN214017583U - Wireless BAEP signal acquisition device - Google Patents
Wireless BAEP signal acquisition device Download PDFInfo
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- CN214017583U CN214017583U CN202022942898.8U CN202022942898U CN214017583U CN 214017583 U CN214017583 U CN 214017583U CN 202022942898 U CN202022942898 U CN 202022942898U CN 214017583 U CN214017583 U CN 214017583U
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Abstract
A wireless BAEP signal acquisition device comprising: the electrode is used for acquiring BAEP signals; the amplifier is used for amplifying the BAEP signal acquired by the electrode; the amplifier is connected with the electrode; the wireless module is used for transmitting the BAEP signal amplified by the amplifier to the outside; the wireless module is connected with the amplifier. The wireless BAEP signal acquisition device provided by the application can monitor the BAEP of a subject noninvasively, cables in testing are reduced, and monitoring effectiveness is improved.
Description
Technical Field
The utility model belongs to the technical field of BAEP test, concretely relates to wireless BAEP signal pickup assembly.
Background
BAEP (brainstem auditory evoked potential) is the most commonly used test method in auditory evoked potentials, can evaluate the integrity of an auditory pathway from the inner ear to the auditory brainstem, is not influenced by the state of a subject, can be used for persons who cannot cooperate with behavior audiometry and need auditory pathway lesion evaluation, and is an indispensable audiological detection means in clinic.
In clinic, the BAEP test is to attach electrodes to the head and the earlobes (or the mastoid behind the ear) of a subject, the used electrode plates are mostly disposable button-type wet electrode plates which are connected with a BAEP device main body through leads, and a plurality of connecting leads are easily affected by the limb movement of the subject, so that the electrodes are displaced and even fall off, and the test is interrupted or failed. In addition, in order for the electrodes to conduct electricity well, a clean wipe of the subject's skin (using alcohol or a scrub) is required to reduce skin impedance and enhance conductivity. The skin preparation operation is tedious for medical staff, and for the test person, there is a risk of iatrogenic skin damage.
Recently, an ear canal type dry electrode has been proposed at home and abroad, which can be integrated with a test transducer (an air bone conduction earphone) and placed in the external auditory canal of a subject to obtain BAEP. However, such a collection device is clearly not suitable for use in patients with malformed and occluded external ear canals.
In summary, how to design a light, thin and convenient electrode plate, optimize the connection mode with the BAEP acquisition device, improve the BAEP signal acquisition quality and meet the safety of human use is an urgent need to solve in the field.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problem, the utility model provides a wireless BAEP signal pickup assembly, include:
the electrode is used for acquiring BAEP signals;
the amplifier is used for amplifying the BAEP signal acquired by the electrode; the amplifier is connected with the electrode;
the wireless module is used for transmitting the BAEP signal amplified by the amplifier to the outside; the wireless module is connected with the amplifier.
Preferably, the electrode comprises: the circuit comprises a first insulating layer, a circuit element layer, a second insulating layer and an electrode layer, wherein the circuit element layer is arranged between the first insulating layer and the second insulating layer, and the electrode layer is arranged on the second insulating layer and is connected with the circuit element layer.
Preferably, a through hole is formed in the second insulating layer, and the electrode layer extends into the through hole and is connected to the circuit element layer.
Preferably, a sectional area of the through hole is smaller than a sectional area of the electrode layer.
Preferably, the electrode further comprises: the adhesion layer with from the type rete, wherein, the adhesion layer set up in on the second insulating layer, and follow the electrode layer is arranged, from the type rete paste in on the adhesion layer, and with the electrode layer is hugged closely.
Preferably, the adhesion layer is a single-sided adhesive tape, the single-sided adhesive tape has an adhesive surface and a non-adhesive surface, the non-adhesive surface is closely attached to the second insulating layer, and the adhesive surface is closely attached to the release film layer in an adhesive manner.
Preferably, the adhesion layer is a double-sided tape, the double-sided tape has a first adhesive surface and a second adhesive surface, wherein the first adhesive surface is closely adhered to the second insulating layer, and the second adhesive surface is closely adhered to the release film layer.
Preferably, the second insulating layer is a single-sided tape having an adhesive surface and a non-adhesive surface, wherein the adhesive surface is adhesively attached to the adhesive layer, and the non-adhesive surface is attached to the circuit element layer.
Preferably, the first insulating layer is a single-sided tape having an adhesive surface, wherein the adhesive surface is adhesively attached to the second insulating layer.
Preferably, the thickness of the electrode is 0.1mm-0.3mm, and the diameter is 10mm-15 mm.
The application provides a wireless BAEP signal acquisition device has following advantage:
(1) the acquisition device adopts a flexible electrode as the front end of signal acquisition, and the electrode can be tightly attached to a subject, so that the complicated skin preparation step is omitted, and the hidden danger of iatrogenic skin damage of the subject is eliminated;
(2) the signal amplifier and the wireless module in the acquisition device both adopt flexible substrates, can be recycled, and are green and environment-friendly;
(3) the acquisition device adopts wireless module, can be in real time with the neural signal of telecommunication transmission to BAEP host computer terminal of gathering, avoids many wires to distribute at the testee head, and then has effectively improved the travelling comfort in the monitoring process, is favorable to going on smoothly of test.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive exercise.
Fig. 1 is a schematic diagram of a wireless BAEP signal acquisition device provided by the present invention;
fig. 2 is a schematic structural diagram of an electrode in a wireless BAEP signal acquisition device provided by the present invention;
fig. 3 is a schematic structural diagram of an electrode in a wireless BAEP signal acquisition device provided by the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-3, in the embodiment of the present application, the utility model provides a wireless BAEP signal acquisition device, include:
an electrode 10 for acquiring BAEP signals;
an amplifier 20 for amplifying BAEP signals collected by the electrodes 10; the amplifier 20 is connected with the electrode 10;
a wireless module 30, configured to transmit the BAEP signal amplified by the amplifier 20 to the outside; the wireless module 30 is connected to the amplifier 20.
In the embodiment of the application, the nerve electrical signals recorded on the surface of the skull by the electrode 10 are transmitted to the amplifier 20, the amplifier 20 amplifies and converts the acquired analog signals into analog signals, and finally, the obtained digital signals are transmitted to the device host through the wireless module 30 for further processing and displaying.
As shown in fig. 1 to 3, in the embodiment of the present application, the electrode 10 includes: the circuit comprises a first insulating layer 1, a circuit element layer 2, a second insulating layer 3 and an electrode layer 7, wherein the circuit element layer 2 is arranged between the first insulating layer 1 and the second insulating layer 3, and the electrode layer 7 is arranged on the second insulating layer 3 and is connected with the circuit element layer 2.
In the embodiment of the application, the electrode 10 can be processed into a thin slice with the thickness of 0.1mm-0.3mm by using metal and metal plated parts, and is cut into a circular slice with the diameter of 10mm-15 mm. The electrode 10 made of metal or metal plated material has strong conductivity, so that the skin of a subject does not need to be treated in advance, and the electrode can be closely contacted with a tested site, thereby ensuring the quality and stability of the acquired signal. The metal comprises steel, copper, nickel, silver and other materials. The metal plating piece comprises materials such as nickel plating and silver plating of metal.
As shown in fig. 1-3, in the embodiment of the present application, the electrode 10 further includes: adhesion layer 4 with from type rete 5, wherein, adhesion layer 4 set up in on the second insulating layer 3, and follow electrode layer 7 arranges, from type rete 5 paste in on adhesion layer 4, and with electrode layer 7 hugs closely.
In the embodiment of the present application, the adhesive layer 4 is a single-sided tape, and the single-sided tape has an adhesive surface and a non-adhesive surface, wherein the non-adhesive surface is closely attached to the second insulating layer 3, and the adhesive surface is closely attached to the release film layer 5 in an adhesive manner.
In the embodiment of the present application, the adhesion layer 4 is a double-sided tape, the double-sided tape has a first adhesive surface and a second adhesive surface, wherein the first adhesive surface is adhered to the second insulating layer 3, and the second adhesive surface is adhered to the release film layer 5.
In the embodiment of the present application, the adhesive layer 4 may be a single-sided tape having one adhesive surface, or may be a double-sided tape having two adhesive surfaces. Specifically, a circular electrode layer 7 is adhered to the adhesive surface of the adhesive layer 4, the remaining blank adhesive surface is sealed by the release film layer 5, and after the release film layer 5 is peeled off, the electrode layer 7 on the adhesive surface is tightly adhered to the skin of the subject. The other adhesive or non-adhesive side is in contact with the second insulating layer 3.
Further, the adhesive layer 4 may be a medical adhesive tape including pressure-sensitive adhesives such as natural rubbers, acrylates, polyurethanes, and silicone adhesives. The release film layer 5 and the second insulating layer 3 may be polyethylene terephthalate (PET) films.
In the embodiment of the present application, the second insulating layer 3 is a single-sided tape having an adhesive surface and a non-adhesive surface, wherein the adhesive surface is adhesively attached to the adhesive layer 4, and the non-adhesive surface is attached to the circuit element layer 2.
In the embodiment of the present application, the second insulating layer 3 is a single-sided tape, the adhesive surface of the second insulating layer 3 is connected to the adhesive layer 4, the non-adhesive surface is connected to the circuit element layer 2, the circuit element layer 2 is adhered to the adhesive surface of the second insulating layer 3, and the remaining blank adhesive surface is connected to the adhesive layer 4.
As shown in fig. 1 to 3, in the embodiment of the present application, a through hole 6 is provided on the second insulating layer 3, and the electrode layer 7 extends into the through hole 6 and is connected to the circuit element layer 2. And a through hole 6 with a proper size and shape is reserved on the second insulating layer 3, and the size of the through hole 6 is smaller than that of the electrode layer 7. The contact of the circuit element layer 2 is brought into contact with and closely attached to the electrode layer 7 through the through hole 6, that is, the position of the electrode layer 7, which is the position of the through hole 6, to achieve conduction with the electrode layer 7.
In the embodiment of the present application, the first insulating layer 1 is a single-sided tape having an adhesive surface, wherein the adhesive surface is closely adhered to the second insulating layer 3.
In the embodiment of the present application, the electrode 10 has a thickness of 0.1mm to 0.3mm and a diameter of 10mm to 15 mm.
In the embodiment of the present application, the signal input terminal of the amplifier 20 is connected to the signal output terminal of the electrode 10, and the signal output terminal thereof is connected to the signal input terminal of the wireless module 30. In the wireless module 30, the signal is sampled and then wirelessly transmitted to the device host by the near field communication technology for further processing and display. In addition, the wireless module 30 can also achieve wireless power transmission by means of inductive coupling, so as to achieve a wireless power supply function.
In the embodiment of the present application, the electrode 10 for acquiring BAEP signals is composed of two concentric circular ring silver-plated copper electrodes with different diameters, and the nerve electrical signals on the surface of the skull are dynamically recorded through the two electrodes 10. The electrode 10 material used in the embodiment has good biocompatibility and conductivity, is low in manufacturing cost, and does not need skin preparation and additional conductive paste. The dual concentric circular design of the electrode 10 in the example has better position selectivity and higher signal-to-noise ratio than the conventional ring electrode 10. In the embodiment of the present invention, the adhesive layer 4 is Tegaderm tape of 3M company, and the second insulating layer 3 is colorless transparent polyethylene terephthalate (PET) single-sided adhesive.
In the embodiment of the present invention, the amplifier 20 can adopt an instrumentation amplifier chip AD620 of Analog Devices, and the AD620 has the advantages of low noise, low drift and low power consumption, so that it is very suitable for remote monitoring application. The wireless module 30 is also a circuit board fabricated based on flexible PCB technology, and may be selected from RF430FRL152H of Texas Instruments, which includes a programmable 16-bit MSP430 □ with a low power consumption, an on-board 14-bit sigma-delta analog-to-digital converter, and collects analog signals transmitted from an Analog Front End (AFE) and converts the analog signals into digital signals. And the device employs an embedded generic FRAM non-volatile memory to store the measured neuroelectrical signal data.
The application provides a wireless BAEP signal acquisition device has following advantage:
(1) the acquisition device adopts a flexible electrode as the front end of signal acquisition, and the electrode can be tightly attached to a subject, so that the complicated skin preparation step is omitted, and the hidden danger of iatrogenic skin damage of the subject is eliminated;
(2) the signal amplifier and the wireless module in the acquisition device both adopt flexible substrates, can be recycled, and are green and environment-friendly;
(3) the acquisition device adopts wireless module, can be in real time with the neural signal of telecommunication transmission to BAEP host computer terminal of gathering, avoids many wires to distribute at the testee head, and then has effectively improved the travelling comfort in the monitoring process, is favorable to going on smoothly of test.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (10)
1. A wireless BAEP signal acquisition device, comprising:
the electrode is used for acquiring BAEP signals;
the amplifier is used for amplifying the BAEP signal acquired by the electrode; the amplifier is connected with the electrode;
the wireless module is used for transmitting the BAEP signal amplified by the amplifier to the outside; the wireless module is connected with the amplifier.
2. The wireless BAEP signal acquisition device of claim 1, wherein the electrode comprises: the circuit comprises a first insulating layer, a circuit element layer, a second insulating layer and an electrode layer, wherein the circuit element layer is arranged between the first insulating layer and the second insulating layer, and the electrode layer is arranged on the second insulating layer and is connected with the circuit element layer.
3. The wireless BAEP signal acquisition device according to claim 2, wherein the second insulating layer is provided with a through hole, and the electrode layer extends into the through hole and is connected with the circuit element layer.
4. The wireless BAEP signal acquisition device of claim 3, wherein the cross-sectional area of the through-hole is smaller than the cross-sectional area of the electrode layer.
5. The wireless BAEP signal acquisition device of claim 2, wherein the electrode further comprises: the adhesion layer with from the type rete, wherein, the adhesion layer set up in on the second insulating layer, and follow the electrode layer is arranged, from the type rete paste in on the adhesion layer, and with the electrode layer is hugged closely.
6. The wireless BAEP signal acquisition device according to claim 5, wherein the adhesive layer is a single-sided tape having an adhesive side and a non-adhesive side, wherein the non-adhesive side is closely attached to the second insulation layer and the adhesive side is closely attached to the release film layer.
7. The wireless BAEP signal acquisition device of claim 5, wherein the adhesive layer is a double-sided tape having a first adhesive side and a second adhesive side, wherein the first adhesive side is adhesively attached to the second insulation layer and the second adhesive side is adhesively attached to the release film layer.
8. The wireless BAEP signal acquisition device of claim 5, wherein the second insulating layer is a single-sided tape having an adhesive side and a non-adhesive side, wherein the adhesive side is adhesively attached to the adhesive layer and the non-adhesive side is attached to the circuit element layer.
9. The wireless BAEP signal acquisition device of claim 2, wherein the first insulating layer is a single-sided tape having an adhesive side, wherein the adhesive side is adhesively attached to the second insulating layer.
10. The wireless BAEP signal acquisition device of claim 1, wherein the electrodes have a thickness of 0.1mm to 0.3mm and a diameter of 10mm to 15 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022942898.8U CN214017583U (en) | 2020-12-07 | 2020-12-07 | Wireless BAEP signal acquisition device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022942898.8U CN214017583U (en) | 2020-12-07 | 2020-12-07 | Wireless BAEP signal acquisition device |
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| Publication Number | Publication Date |
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| CN214017583U true CN214017583U (en) | 2021-08-24 |
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| CN202022942898.8U Active CN214017583U (en) | 2020-12-07 | 2020-12-07 | Wireless BAEP signal acquisition device |
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| CN (1) | CN214017583U (en) |
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