CN219803723U - Intelligent electrocardiograph monitoring equipment - Google Patents
Intelligent electrocardiograph monitoring equipment Download PDFInfo
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- CN219803723U CN219803723U CN202320526981.8U CN202320526981U CN219803723U CN 219803723 U CN219803723 U CN 219803723U CN 202320526981 U CN202320526981 U CN 202320526981U CN 219803723 U CN219803723 U CN 219803723U
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- 238000012544 monitoring process Methods 0.000 title claims abstract description 29
- GQYHUHYESMUTHG-UHFFFAOYSA-N lithium niobate Chemical compound [Li+].[O-][Nb](=O)=O GQYHUHYESMUTHG-UHFFFAOYSA-N 0.000 claims abstract description 41
- 230000010287 polarization Effects 0.000 claims abstract description 32
- 238000001514 detection method Methods 0.000 claims abstract description 9
- 239000013307 optical fiber Substances 0.000 claims description 38
- 238000012806 monitoring device Methods 0.000 claims description 22
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- WHXSMMKQMYFTQS-UHFFFAOYSA-N Lithium Chemical compound [Li] WHXSMMKQMYFTQS-UHFFFAOYSA-N 0.000 claims description 3
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- 208000024172 Cardiovascular disease Diseases 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
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- 230000005189 cardiac health Effects 0.000 description 1
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- 230000003313 weakening effect Effects 0.000 description 1
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- Measurement And Recording Of Electrical Phenomena And Electrical Characteristics Of The Living Body (AREA)
Abstract
The utility model provides intelligent electrocardio monitoring equipment, which is characterized in that an ASE broadband light source module is adopted to emit C-band broadband continuous light, the C-band broadband continuous light passes through a polarization controller to obtain polarized light modulated by a polarization state, the polarized light passes through a lithium niobate electro-optic modulator, voltage signals of two electrode plates are connected into the lithium niobate electro-optic modulator, the applied voltage of the lithium niobate electro-optic modulator is continuously changed due to the periodic beating of a heart, the lithium niobate electro-optic modulator is of an M-Z structure, the polarized light is subjected to intensity modulation, detection light is output, a photoelectric detector detects the light intensity value of the detection light, the change of the light intensity value is obtained, and the light intensity value reflects the size of electrocardio signals. The utility model solves the problems that the electrocardio monitoring equipment in the prior art is easy to be subjected to electromagnetic interference under a complex electromagnetic environment and cannot carry out accurate electrocardio signal monitoring, and has the advantages of strong anti-electromagnetic interference capability under the complex electromagnetic environment and capability of carrying out accurate electrocardio signal monitoring.
Description
Technical Field
The utility model relates to the technical field of electrocardiograph monitoring, in particular to intelligent electrocardiograph monitoring equipment.
Background
Along with the development of modern medicine, electrocardiographic monitoring is widely applied to clinical departments, provides favorable objective data for observing the disease conditions, can be used for diagnosing various cardiovascular diseases, and is an important medical means for detecting heart health.
The prior patent of the utility model such as CN201921253686.X discloses a wearable wireless electrocardiograph acquisition monitoring patch, which comprises: the medical gel patch comprises a flexible shell, a control module, a power module, an electrode module and a patch, wherein the flexible shell comprises an upper shell and a negative film, the upper shell is divided into three sections, each section of upper shell is internally provided with a groove, each negative film is provided with four electrode holes and a group of charging holes, the control module is arranged in the upper shell of the second section and comprises a circuit board, a data transmission module, a controller, an AD converter, a memory, a synchronization module and a charging pile, the data transmission module, the controller, the AD converter, the synchronization module and the memory are fixed on the front surface of the circuit board, the charging pile is fixed on the back surface of the circuit board, the power module is arranged in the upper shell of the first section and the upper shell of the third section, the power module is connected with the control module through wires, the electrode module comprises four monitoring electrodes and electrode gaskets, the monitoring electrodes are embedded in the electrode gaskets, the four monitoring electrodes are respectively connected with the control module through wires, the electrode gaskets are bonded on the four electrode holes, the patch is formed by a release film and a spinning cloth group, the size of the four release film and the four release film are bonded on the back surface of the membrane and the back surface of the medical gel patch, and the four release film is bonded on the back surface of the four release film and the adhesive layers are respectively.
However, in this structure, since the monitoring electrode is connected with the control module through a wire, the control module is an acquisition control module based on an electrical principle, and is easy to be subjected to electromagnetic interference in a complex electromagnetic environment, and the problems of deformation and defect of electrocardiosignal waveforms occur. The electrocardio monitoring equipment in the prior art has the problems that the electrocardio monitoring equipment is easy to be subjected to electromagnetic interference under a complex electromagnetic environment and cannot accurately monitor electrocardio signals.
Disclosure of Invention
Aiming at the defects existing in the prior art, the utility model provides intelligent electrocardio monitoring equipment, which solves the problems that the electrocardio monitoring equipment in the prior art is easy to be subjected to electromagnetic interference under a complex electromagnetic environment and cannot accurately monitor electrocardio signals.
According to an embodiment of the utility model, an intelligent electrocardiograph monitoring device comprises an ASE broadband light source module, a flange plate, a polarization controller, a lithium niobate electro-optical modulator and a photoelectric detector; the tail fiber of the ASE broadband light source module is connected with the first optical fiber end of the polarization controller and is used for generating C-band broadband continuous light; the second optical fiber end of the polarization controller is connected with the input optical fiber end of the lithium niobate electro-optical modulator, and stress birefringence is generated on the continuous light by adjusting the polarization controller, so that the polarization state of the continuous light is modulated, and polarized light is output; the output optical fiber end of the lithium niobate electro-optical modulator is connected with the photoelectric detector, the lithium niobate electro-optical modulator is connected with an external electrode plate, and the lithium niobate electro-optical modulator is used for modulating the intensity of the polarized light and outputting detection light; the photoelectric detector is used for detecting the light intensity value of the detection light and converting the light intensity value into a photocurrent signal to be output.
Optionally, the intelligent electrocardiograph monitoring device further comprises a circuit board, wherein the photoelectric detector is connected with the circuit board, and the circuit board comprises a photoelectric conversion circuit, a filter circuit and an amplifying circuit; the photoelectric conversion circuit is used for converting the photocurrent signal into a voltage signal, the filtering circuit is used for filtering and denoising the voltage signal to obtain a filtering signal, and the amplifying circuit is used for amplifying the filtering signal to obtain an amplified signal.
Optionally, the intelligent electrocardiograph monitoring device further comprises an optical power meter, the polarization controller is connected with the optical power meter, and the polarization controller is rotated to enable the optical power meter to display the maximum number, so that the input polarized light with the strongest modulation depth of the lithium niobate electro-optical modulator is obtained.
Optionally, the number of the external electrode plates is two, and the two electrode plates are connected with the two electrode connecting buckles through buckles for electrocardiosignal acquisition.
Optionally, the photodetector is powered by a lithium battery.
Optionally, the model of the ASE broadband light source module is OS-ASE-M1-C-F-20-0-S-FU.
Optionally, the polarization controller is of the OM-PC-PLC type.
Optionally, the lithium niobate electro-optical modulator comprises an optical fiber waveguide region, a coupling region, a modulation region, a slab waveguide region and a D-type optical fiber waveguide region, wherein the coupling region is connected with the modulation region, and the coupling region is connected with the optical fiber waveguide region; the coupling region and the modulation region are both arranged above the slab waveguide region, and the slab waveguide region is arranged above the plane of the D-type optical fiber waveguide region; the modulation area adopts a Mach-Zehnder structure, two waveguides of the modulation area are lithium niobate waveguides, two grounding metal electrodes are positioned at the outer sides of the two waveguides and symmetrically distributed, and a signal metal electrode is positioned at the center of the two waveguides; the polarized light is gradually coupled into the coupling area from the optical fiber input end of the optical fiber waveguide, is connected with the external electrode plate on the signal metal electrode, is grounded, the refractive index of the lithium niobate waveguide is changed due to the electro-optic effect under the action of an electric field, and a refractive index difference is generated between the two waveguides, so that two light beams with the same phase generate a phase difference, then interference occurs through coupling, intensity modulation is realized, and finally the light is coupled into the optical fiber waveguide through the coupling area and is output by the optical fiber output end.
Optionally, the model of the photodetector is DET20C/M.
Optionally, the ASE broadband light source module, the polarization controller, the lithium niobate electro-optic modulator and the photodetector are installed in the shell, and the shell is encapsulated through the shell cover. The technical principle of the utility model is as follows: the ASE broadband light source module is adopted to emit C-band broadband continuous light, the polarized light is modulated by a polarization controller, the polarized light enters the lithium niobate electro-optic modulator, two electrode sheet voltage signals are connected into the lithium niobate electro-optic modulator, the applied voltage of the lithium niobate electro-optic modulator is continuously changed due to the period beating of a heart, two paths of light sources of an M-Z waveguide in the modulator generate different phase changes, two paths of light waves with phase differences generate interference, the phase modulation is converted into intensity modulation, detection light is output, a photoelectric detector detects the light intensity value of the detection light, and the change of the light intensity value reflects the size of an electrocardiosignal.
Compared with the prior art, the utility model has the following beneficial effects: by converting the electrocardiosignal acquisition based on the electrical principle into the electrocardiosignal acquisition based on the optical principle, the intelligent electrocardiosignal monitoring equipment has strong electromagnetic interference resistance in a complex electromagnetic environment and can carry out accurate electrocardiosignal monitoring.
Drawings
Fig. 1 is a schematic structural diagram of an intelligent electrocardiograph monitoring device according to an embodiment of the present utility model.
Fig. 2 is a top view of an internal structure of an intelligent electrocardiographic monitoring device according to another embodiment of the present utility model.
In the above figures: 1. a housing cover; 2. an ASE broadband light source module; 3. a circuit board; 4. a lithium niobate electro-optic modulator; 5. an electrocardiosignal input end; 6. a polarization controller; 7. a photodetector; 8. a photodetector switch; 9. an equipment housing; 10. a round hole of the shell is arranged at the output position of the electrocardiosignal; 11. the external electrode is connected with the round hole of the shell; 12. a shell round hole is formed at the switch of the photoelectric detector; 13. a strap; 14. an electrode connecting buckle; 15. electrode plate.
Detailed Description
The technical scheme of the utility model is further described below with reference to the accompanying drawings and examples.
As shown in fig. 1, the embodiment of the utility model provides an intelligent electrocardiograph monitoring device, which comprises a shell cover 1, an ASE broadband light source module 2, a circuit board 3, a lithium niobate electro-optical modulator 4, an electrocardiograph signal input end 5, a polarization controller 6, a photoelectric detector 7, a photoelectric detector switch 8, a device shell 9, a shell round hole 10 at an electrocardiograph signal output position, a shell round hole 11 of an external electrode connecting buckle, a shell round hole 12 at a photoelectric detector switch position, a binding belt 13, an electrode connecting buckle 14 and an electrode sheet 15. The intelligent electrocardio monitoring equipment shell 9 is of a rectangular structure, the long side of the equipment shell 9 is a plane, the short side of the equipment shell 9 is a curved surface, round holes for connecting an electrode connecting buckle 14, a power line and operating a photoelectric detector switch 8 are formed in the side face of the equipment shell 9, a tail fiber optical fiber head of the ASE broadband light source module 2 is connected with a first optical fiber end of the polarization controller 6 through a flange plate, a second optical fiber end of the polarization controller 6 is connected with an input optical fiber end of the lithium niobate electro-optical modulator 4 through the flange plate, an output optical fiber end of the lithium niobate electro-optical modulator 4 is connected with the photoelectric detector 7 through the flange plate, the photoelectric detector 7 is connected with the circuit board 3, and all devices are installed inside the equipment shell 9 and packaged through the shell cover 1. The shell round hole 10 at the electrocardiosignal output position is used for connecting an external data acquisition card and a computer for real-time monitoring and storage of electrocardiosignals, the shell round hole 11 of the external electrode connecting buckle is used for connecting an electrode for acquiring the electrocardiosignals externally, and the shell round hole 12 at the photoelectric detector switch is used for operating and controlling the state of the photoelectric detector switch 8.
The detailed working procedure of this embodiment is: the ASE broadband light source module 2, the circuit board 3 and the photoelectric detector 7 are connected, the photoelectric detector switch 8 is turned on, the intelligent electrocardio monitoring equipment is worn on the arm of a subject by using the binding belt 13, the two electrode plates 15 are respectively stuck on the left wrist and the right wrist of the subject, and the two electrode connecting buckles 14 are connected with the electrode plates 15 through buckles. The ASE broadband light source module 2 emits C-band broadband continuous light, the continuous light generates stress birefringence by adjusting the polarization controller 6 to modulate the polarization state of the continuous light, the polarized light is output, and the lithium niobate electro-optical modulator 4 is used for intensity modulating the polarized light and outputting detection light. The voltage signals of the two electrode plates 15 enter the lithium niobate electro-optic modulator 4 through the electrocardiosignal input end 5, the external voltage of the lithium niobate electro-optic modulator 4 is continuously changed due to the period beating of the heart, the refractive index of lithium niobate crystals in the lithium niobate electro-optic modulator 4 is linearly changed due to the change of the external voltage, the inside of the lithium niobate electro-optic modulator 4 is of an M-Z structure, two paths of light waves generate different phase changes, the two paths of light waves with phase difference generate interference, the phase modulation is converted into intensity modulation, the modulated light signals enter the photoelectric detector 7, the change of the light intensity value is obtained, the change of the loading voltage is obtained through the change of the light intensity value measured by the photoelectric detector 7, and the acquisition of the electrocardiosignal is realized. Because the electrocardiosignal acquisition based on the electrical principle is converted into the electrocardiosignal acquisition based on the optical principle, the intelligent electrocardiosignal monitoring equipment has strong electromagnetic interference resistance under a complex electromagnetic environment, can carry out accurate electrocardiosignal monitoring, basically does not have the problems of deformation, defect and the like of electrocardiosignal waveform, and has the advantages of low time delay, real-time monitoring, high signal to noise ratio and the like. The intelligent electrocardio monitoring device can be fixed on the arm of a subject through the binding belt 13, can monitor electrocardio signals in real time in daily life scenes such as families, and is not limited to medical institutions. The device has the advantages of simple assembly, simple operation, small volume, light weight, convenient wearing and good comfort, and can be suitable for real-time electrocardiosignal monitoring and long-time ECG data storage of most subjects.
In some embodiments, when the intelligent electrocardiograph monitoring device is used, the two electrode plates 15 are adhered to the wrists of the two hands of the subject, the subject needs to keep a static or small-amplitude motion state, the device can be worn on the arm through the binding belt 13 or placed on a static desktop, when the electrocardiograph signal is collected, the optical power of the ASE broadband light source module 2 needs to be set to be a proper value, the polarization controller 6 is adjusted to enable the transmitted light to be in an optimal polarization state, finally the electrocardiograph signal is filtered and amplified through a designed circuit, data is collected and stored through the data collection card, real-time display can be carried out on the PC end, the ASE broadband light source module 2, the circuit board 3 and the photoelectric detector 7 can be powered by an external power supply, more optimally and selectively using a lithium battery, and the device can be more portable.
In some embodiments, the intelligent electrocardiograph monitoring device can also open a communication interface, and a wireless communication module is added, so that data transmission and communication between doctors and subjects are improved, and timeliness of treatment are improved.
Optionally, the intelligent electrocardiograph monitoring device further comprises a circuit board 3, the photoelectric detector 7 is connected with the circuit board 3, and the circuit board 3 comprises a photoelectric conversion circuit, a filter circuit and an amplifying circuit; the photoelectric conversion circuit is used for converting a photocurrent signal into a voltage signal, the filtering circuit is used for filtering and denoising the voltage signal to obtain a filtered signal, and the amplifying circuit is used for amplifying the filtered signal to obtain an amplified signal. The photoelectric detector 7 is connected with the circuit board 3, converts the photocurrent signal into a voltage signal, filters and amplifies the electrocardiosignal noise, and the output characteristic waveforms of the electrocardiosignal QRS complex, the R wave, the T wave and the like can be clearly distinguished. Because the photocurrent signal is very weak and cannot be directly observed or collected, signal processing is carried out by a conversion, filtering and amplifying circuit to display an electrocardiogram with better quality and finish data storage and subsequent signal characteristic extraction.
Optionally, the intelligent electrocardiograph monitoring device further comprises an optical power meter, the polarization controller 6 is connected with the optical power meter, and the polarization controller 6 is rotated to enable the optical power meter to display the maximum number, so that the input polarized light with the strongest modulation depth of the lithium niobate electro-optical modulator 4 is obtained.
Alternatively, the ASE broadband light source module 2 is of the type OS-ASE-M1-C-F-20-0-S-FU.
Optionally, the polarization controller 6 is model OM-PC-PLC.
Optionally, the lithium niobate electro-optical modulator 4 includes an optical fiber waveguide region, a coupling region, a modulation region, a slab waveguide region, and a D-type optical fiber waveguide region, where the coupling region is connected with the modulation region and the coupling region is connected with the optical fiber waveguide region; the coupling area and the modulation area are both arranged above the slab waveguide area, and the slab waveguide area is arranged above the plane of the D-type optical fiber waveguide area; the modulation area adopts a Mach-Zehnder structure, two waveguides of the modulation area are lithium niobate waveguides, two grounded metal electrodes are positioned at the outer sides of the two waveguides and symmetrically distributed, and the signal metal electrodes are positioned at the right center of the two waveguides; polarized light is gradually coupled into a coupling region from an optical fiber input end of an optical fiber waveguide, is connected with an external electrode plate 15 on a signal metal electrode, is grounded, and is subjected to refractive index change due to an electro-optic effect under the action of an electric field, so that a refractive index difference is generated between the two waveguides, two light beams with the same phase generate a phase difference, then interference is generated through coupling, intensity modulation is realized, and finally the light is coupled into the optical fiber waveguide through the coupling region and is output by an optical fiber output end. Because the lithium niobate electro-optical modulator 4 has better linearity when being loaded with voltage and jumping, the amplitude change of the electrocardiosignal is a process of repeatedly increasing and weakening, the sensitivity of a sensing system can be effectively ensured, and the characteristic waveforms such as QRS wave group, R wave, T wave and the like can be clearly distinguished by observing the details of the electrocardiogram waveform, and can be used for daily accurate monitoring of the electrocardiogram.
Alternatively, the model of the photodetector 7 is DET20C/M.
As shown in fig. 2, according to another embodiment of the present utility model, the internal structure of an intelligent electrocardiographic monitoring device can see that each device of the device is compactly installed in a device housing 9, so that the integration level is high, and the portability is good.
Finally, it is noted that the above embodiments are only for illustrating the technical solution of the present utility model and not for limiting the same, and although the present utility model has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that modifications and equivalents may be made thereto without departing from the spirit and scope of the technical solution of the present utility model, which is intended to be covered by the scope of the claims of the present utility model.
Claims (10)
1. The intelligent electrocardio monitoring equipment is characterized by comprising an ASE broadband light source module (2), a polarization controller (6), a lithium niobate electro-optical modulator (4) and a photoelectric detector (7);
the tail fiber of the ASE broadband light source module (2) is connected with the first optical fiber end of the polarization controller (6) and is used for generating C-band broadband continuous light;
the second optical fiber end of the polarization controller (6) is connected with the input optical fiber end of the lithium niobate electro-optic modulator (4), and continuous light in the optical fiber generates stress birefringence by adjusting the polarization controller (6), modulates the polarization state of the continuous light and outputs polarized light;
the output optical fiber end of the lithium niobate electro-optic modulator (4) is connected with the photoelectric detector (7), the lithium niobate electro-optic modulator (4) is connected with an external electrode plate (15), and the lithium niobate electro-optic modulator (4) is used for modulating the intensity of the polarized light and outputting detection light;
the photoelectric detector (7) is used for detecting the light intensity value of the detection light and converting the light intensity value into a photocurrent signal to be output.
2. An intelligent electrocardiographic monitoring device according to claim 1, characterized in that the intelligent electrocardiographic monitoring device further comprises a circuit board (3), the photodetector (7) is connected with the circuit board (3), and the circuit board (3) comprises a photoelectric conversion circuit, a filter circuit and an amplifying circuit; the photoelectric conversion circuit is used for converting the photocurrent signal into a voltage signal, the filtering circuit is used for filtering and denoising the voltage signal to obtain a filtering signal, and the amplifying circuit is used for amplifying the filtering signal to obtain an amplified signal.
3. An intelligent electrocardiographic monitoring device according to claim 1, further comprising an optical power meter, wherein the polarization controller (6) is connected to the optical power meter, and the polarization controller (6) is rotated to maximize the optical power meter count, so that the input polarized light with the strongest modulation depth of the lithium niobate electro-optical modulator (4) is obtained.
4. An intelligent electrocardiograph monitoring device according to claim 1, characterized in that two external electrode plates (15) are connected with two electrode connecting buckles (14) through buckles, and are used for electrocardiograph signal acquisition.
5. An intelligent electrocardiographic monitoring device according to claim 1 wherein the photodetector (7) is powered by a lithium battery.
6. The intelligent electrocardiographic monitoring device according to claim 1 wherein the ASE broadband light source module (2) is of the type OS-ASE-M1-C-F-20-0-S-FU.
7. An intelligent electrocardiographic monitoring device according to claim 1 wherein the polarization controller (6) is of the OM-PC-PLC type.
8. An intelligent electrocardiographic monitoring device according to claim 1, wherein the lithium niobate electro-optical modulator (4) comprises an optical fiber waveguide area, a coupling area, a modulation area, a slab waveguide area and a D-type optical fiber waveguide area, the coupling area is connected with the modulation area, and the coupling area is connected with the optical fiber waveguide area; the coupling region and the modulation region are both arranged above the slab waveguide region, and the slab waveguide region is arranged above the plane of the D-type optical fiber waveguide region; the modulation area adopts a Mach-Zehnder structure, two waveguides of the modulation area are lithium niobate waveguides, two grounding metal electrodes are positioned at the outer sides of the two waveguides and symmetrically distributed, and a signal metal electrode is positioned at the center of the two waveguides; the polarized light is gradually coupled into the coupling area from the optical fiber input end of the optical fiber waveguide, is connected with the external electrode plate (15) on the signal metal electrode, is grounded, the refractive index of the lithium niobate waveguide is changed due to the electro-optic effect under the action of an electric field, and a refractive index difference is generated between the two waveguides, so that two light beams with the same phase generate a phase difference, then interference occurs through coupling, intensity modulation is realized, and finally the light is coupled into the optical fiber waveguide through the coupling area and is output by the optical fiber output end.
9. An intelligent electrocardiographic monitoring device according to claim 1 wherein the photo detector (7) is of model DET20C/M.
10. An intelligent electrocardiographic monitoring device according to claim 1, characterized by further comprising a housing and a housing cover (1), wherein the ASE broadband light source module (2), the polarization controller (6), the lithium niobate electro-optical modulator (4) and the photodetector (7) are mounted in the housing, and wherein the housing is encapsulated by the housing cover (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320526981.8U CN219803723U (en) | 2023-03-17 | 2023-03-17 | Intelligent electrocardiograph monitoring equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320526981.8U CN219803723U (en) | 2023-03-17 | 2023-03-17 | Intelligent electrocardiograph monitoring equipment |
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| Publication Number | Publication Date |
|---|---|
| CN219803723U true CN219803723U (en) | 2023-10-10 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320526981.8U Active CN219803723U (en) | 2023-03-17 | 2023-03-17 | Intelligent electrocardiograph monitoring equipment |
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|---|---|
| CN (1) | CN219803723U (en) |
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- 2023-03-17 CN CN202320526981.8U patent/CN219803723U/en active Active
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