CN111387969B - Esophageal heart electrophysiology esophageal lead synchronous recording technology - Google Patents
Esophageal heart electrophysiology esophageal lead synchronous recording technology Download PDFInfo
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- A61B5/279—Bioelectric electrodes therefor specially adapted for particular uses
- A61B5/28—Bioelectric electrodes therefor specially adapted for particular uses for electrocardiography [ECG]
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- A61N1/00—Electrotherapy; Circuits therefor
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Abstract
The invention relates to a synchronous recording technology of esophageal heart electrophysiology esophageal leads, and relates to the technical field of medical electronic instruments. The technical scheme is characterized in that the system comprises: an electrocardiograph acquisition module configured to synchronously acquire body surface electrocardiograph signals and esophageal lead electrocardiograph signals; the control module is connected with the electrocardio acquisition module and is configured to receive the two electrocardiosignals acquired by the electrocardio acquisition module and send the received two electrocardiosignals to the computer for synchronous display of the two electrocardiograph waveforms on the same screen; and an electrophysiological stimulation pulse delivery module configured to apply an electrophysiological stimulation pulse to the esophageal cells; the computer is also used for controlling the time and the stimulation voltage amplitude of the electrophysiological stimulation pulse emitted by the electrophysiological stimulation pulse emitting module. The invention can synchronously collect the body surface electrocardiosignals and the esophagus lead electrocardiosignals and display the corresponding electrocardiographic waveforms of the two electrocardiosignals on the same screen, thereby being beneficial to the reading and analysis of doctors.
Description
Technical Field
The invention relates to the technical field of medical electronic instruments, in particular to an esophageal heart electrophysiology esophageal lead synchronous recording technology.
Background
Currently, in the esophageal heart electrophysiology technology, a body surface lead electrocardiogram is recorded by an electrocardiograph, an electrocardiograph or a certain lead of the electrocardiograph is used for singly recording an esophageal electrocardiogram, and then a doctor analyzes the electrocardiographic change of a patient after cardiac pacing according to the displayed body surface electrocardiogram and the esophageal electrocardiogram.
For example, publication CN109715051a discloses a diagnostic system comprising a measurement probe system adapted to derive an electrocardiogram; a catheter for insertion into the esophagus of a patient, wherein the catheter has a plurality of measurement probes for determining pressure values and/or for impedance measurements, and optionally comprises further measurement probes for determining further measurement values; a recording device having a voltage source and a plurality of channels for registering and recording measurement data originating from the measurement probe, and at least one memory for time-dependent storage of measurement data and means for transmitting data from the measurement probe to the recording device. When in use, the stimulating pulse is applied to the esophageal cells through the catheter, and the recording device can record and display an esophageal electrocardiogram; in diagnosis, the esophageal electrocardiogram displayed by the recording device is combined with the body surface lead electrocardiogram recorded by the traditional electrocardiograph to read and analyze the electrocardiographic change of the human heart after pacing.
However, the prior art solutions in the above have the following drawbacks: because the esophageal electrocardiogram and the body surface electrocardiogram cannot be synchronously displayed on the same screen, the esophageal electrocardiogram and the body surface electrocardiogram cannot be well corresponding in time sequence, and the method has great influence on the reading and analysis of doctors and is unfavorable for diagnosis.
Disclosure of Invention
Aiming at the defects existing in the prior art, the invention aims to provide an esophageal heart electrophysiology esophageal lead synchronous recording technology.
The first object of the invention is: the body surface and esophagus lead electrocardiogram synchronous recording system can synchronously acquire body surface electrocardiosignals and esophagus lead electrocardiosignals and display the two electrocardiosignals on the same screen, is beneficial to the reading and analysis of doctors, and is further beneficial to diagnosis;
the second object of the invention is: the method for synchronously recording the body surface and esophagus lead electrocardiograms is provided, can display the body surface electrocardiograms and the esophagus electrocardiograms on the same screen and in the same time sequence, is beneficial to the doctor to compare various waveforms, and effectively optimizes the heart electrophysiology examination flow;
the third object of the invention is: the synchronous recording device can realize synchronous on-screen display of two electrocardiograms, and is more beneficial to control the heart electrophysiology examination process;
the fourth object of the invention is: a computer readable storage medium is provided, storing a computer program capable of being loaded by a processor and executing the method for synchronously recording the body surface and esophagus lead electrocardiogram, and the method has the characteristics of being beneficial to waveform reading and analysis.
The first object of the present invention is achieved by the following technical solutions:
a body surface and esophageal lead electrocardiogram synchronous recording system, comprising:
an electrocardiograph acquisition module configured to synchronously acquire body surface electrocardiograph signals and esophageal lead electrocardiograph signals;
the control module is connected with the electrocardio acquisition module and is configured to receive the two electrocardiosignals acquired by the electrocardio acquisition module and send the two received electrocardiosignals to the computer for synchronous display of two electrocardiograph waveforms on the same screen; the method comprises the steps of,
an electrophysiological stimulation pulse delivery module configured to apply electrophysiological stimulation pulses to esophageal cells;
wherein the computer is also used for controlling the time and the stimulation voltage amplitude of the electrophysiological stimulation pulse emitted by the electrophysiological stimulation pulse emitting module.
By adopting the technical scheme, the body surface electrocardiosignals and the esophagus lead electrocardiosignals can be synchronously acquired and synchronously displayed on the same screen, and the chart reading and analysis of doctors are facilitated, so that the diagnosis is facilitated.
The present invention may be further configured in a preferred example to: the electrocardio acquisition module comprises:
a limb lead electrode and a chest lead electrode for acquiring body surface electrocardiosignals;
an esophageal bipolar lead electrode for acquiring esophageal lead electrocardiosignals;
the protection unit comprises a defibrillation protection unit for preventing a defibrillation voltage from damaging a circuit and an antistatic protection unit for preventing static electricity from influencing signal transmission; the anti-static protection unit is connected with the anti-vibration protection unit;
the right leg driving unit is connected with the antistatic protection unit and the limb lead electrode and is used for reducing common mode interference;
the shielding driving unit is connected with the antistatic protection unit, the limb lead electrode, the chest lead electrode and the esophagus bipolar lead electrode and is used for reducing interference on a cable wire;
the signal amplifying unit is connected with the antistatic protection unit and is used for amplifying the collected electrocardiosignals;
and the AD conversion unit is connected with the signal amplification unit and is used for sending the electrocardiosignals amplified by the signal amplification unit into the control module after AD conversion.
By adopting the technical scheme, the collected electrocardiosignals can be transmitted into the control module after being filtered and amplified, so that the accuracy of the electrocardiosignals displayed on the computer is improved, and the influence on the reading of doctors is further reduced.
The present invention may be further configured in a preferred example to: the electrophysiological stimulation pulse delivery module comprises:
a stimulus voltage generator for outputting a stimulus voltage;
a stimulation voltage amplitude control unit connected with the stimulation voltage generator and used for controlling the amplitude of the output stimulation voltage according to the control signal of the computer;
the pulse control switch unit is connected with the stimulation voltage amplitude control unit and is used for controlling the release time of the electrophysiological stimulation pulse according to the control signal of the computer;
and the esophagus stimulating electrode is connected with the pulse control switch unit and is used for applying electrophysiological stimulating pulses to esophagus cells.
By adopting the technical scheme, the stimulation voltage of the output can be automatically controlled, and the problems that the efficiency and the accuracy of manually adjusting the rheostat are low when the output voltage is changed in the past are solved.
The present invention may be further configured in a preferred example to: the control module includes:
the singlechip is connected with the electrocardio acquisition module and the computer and is used for acquiring two electrocardiosignals and analyzing and processing the electrocardiosignals;
the first photoelectric isolation unit is connected with the singlechip and is used for sending electrocardiosignals which are analyzed and processed by the singlechip to a USB data interface connected with the computer;
the second photoelectric isolation unit is connected with the singlechip and the stimulation voltage amplitude control unit and is used for responding to the control signal of the singlechip to control the amplitude of the stimulation voltage output by the stimulation voltage amplitude control unit;
and the third photoelectric isolation unit is connected with the singlechip and the pulse control switch unit and is used for responding to the control signal of the singlechip to control the release time of the electrophysiological stimulation pulse.
By adopting the technical scheme, the output voltage and the release time of the stimulation pulse can be directly controlled through the singlechip optocoupler isolation, so that the response efficiency of the system is improved.
The second object of the present invention is achieved by the following technical solutions:
a method for synchronously recording electrocardiogram of body surface and esophagus leads, comprising the following steps:
delivering electrophysiological stimulation pulses through a cardiac electrophysiological stimulation pulse generator and an esophageal stimulation electrode connected with the cardiac electrophysiological stimulation pulse generator;
synchronously acquiring body surface electrocardiosignals and esophageal lead electrocardiosignals by using the same electrocardiosignal acquisition equipment;
the acquired body surface electrocardiosignals and esophageal lead electrocardiosignals are sent to a computer to synchronously display the two electrocardiograph waveforms on the same screen;
the stimulation voltage amplitude and the release time of the electrophysiological stimulation pulse sent by the heart electrophysiological stimulation pulse generator are controlled by a computer.
By adopting the technical scheme, the body surface electrocardiogram and the esophagus electrocardiogram can be displayed on the computer in the same screen and in the same sequence, so that a doctor can compare various waveforms, and the heart electrophysiology examination flow is effectively optimized.
The present invention may be further configured in a preferred example to: the method comprises the steps of sending the acquired body surface electrocardiosignals and the esophageal lead electrocardiosignals to a computer for synchronous display of two electrocardiograph waveforms on the same screen, and specifically comprises the following steps:
the acquired body surface electrocardiosignals and esophagus lead electrocardiosignals are sent to a computer;
dividing a display area of the computer into a main display window and a draggable second view;
according to the body surface electrocardiosignals and the esophagus lead electrocardiosignals received by the computer, synchronously displaying two electrocardiograph waveforms on a main display window;
the selection of a segment of the electrocardiogram waveform display for comparison with other waveforms is fixed in a second view, in which the electrocardiogram waveforms may be arranged as a single, double or four-column display, and the second view may also be saved as an image file.
By adopting the technical scheme, a doctor can fix a section of waveform to be displayed on the second view for comparison with other waveforms, and the doctor is more favorable for comparing and analyzing each waveform.
The present invention may be further configured in a preferred example to: when the computer synchronously displays two electrocardiographic waveforms on the same screen, the method also comprises the following steps:
s101, selecting to keep storing or suspending storing, and simultaneously selecting to keep monitoring or suspending monitoring; if the hold storage is selected, the process proceeds to step S201, if the pause storage is selected, the process proceeds to step S301, if the hold monitoring is selected, the process proceeds to step S401, and if the pause monitoring is selected, the process proceeds to step S501;
s201, recording waveform data, and displaying a flashing indication icon in a display area of a computer;
s301, suspending recording of waveform data, wherein the indication icon is not flashing any more; if the storage is selected continuously, returning to the step S201, and generating a mark representing the storage interruption in the recorded waveform;
s401, synchronously displaying waveforms on the same screen according to the received body surface electrocardiosignals and the esophageal lead electrocardiosignals;
s501, suspending updating of waveforms in a computer display area so as to analyze, mark and measure previous waveforms; if the keep-alive is continued, the process returns to step S401.
By adopting the technical scheme, a doctor can select to keep or pause storage, keep or pause monitoring according to actual needs, and the method is flexible and convenient.
The present invention may be further configured in a preferred example to: in step S501, when the computer is in a state of maintaining storage, the computer still records waveform data; when the computer is in a state of suspending storage, the computer may still suspend recording waveform data.
By adopting the technical scheme, the functions of pause monitoring and pause storage are mutually independent, and the system still records waveform data when the pause monitoring is carried out, so that a doctor can check the waveform data at a later stage.
The third object of the present invention is achieved by the following technical solutions:
a synchronous recording device comprising a memory and a processor, the memory having stored thereon a computer program capable of being loaded by the processor and performing any one of the methods described above.
By adopting the technical scheme, the device has the characteristics of synchronously displaying the body surface electrocardio waveform and the esophagus lead electrocardio waveform on the same screen, is convenient for a clinician to analyze the time sequence of various electrocardios and the electrocardio change after the electric pulse drives the heart to pace, and improves the working efficiency.
The fourth object of the present invention is achieved by the following technical solutions:
a computer readable storage medium storing a computer program capable of being loaded by a processor and executing any one of the methods described above.
By adopting the technical scheme, the method can store corresponding programs and has the characteristic of realizing the synchronous display of the control body surface electrocardio waveform and the esophagus lead electrocardio waveform on a computer.
In summary, the present invention includes at least one of the following beneficial technical effects:
1. through the design of an electrocardio acquisition module, a control module, an electrophysiology stimulation pulse issuing module and a computer, standard twelve-lead electrocardio and esophagus bipolar lead electrocardio are displayed on the same screen, which is beneficial to the reading and analysis of doctors, thereby being more beneficial to diagnosis;
2. the computer program control is used for sending out the electro-physiological stimulation pulse, so that a series of functions of electro-physiological stimulation, recording, analysis, archiving, printing and the like of the heart are realized, and a clinician can conveniently analyze the time sequence of the electrocardio and the electrocardio change after the electric pulse drives the heart to pace.
Drawings
FIG. 1 is a block diagram showing a body surface and esophageal lead electrocardiogram synchronous recording system according to an embodiment;
FIG. 2 is a flow chart of a method for synchronous recording of body surface and esophageal lead electrocardiograms shown in embodiment two;
fig. 3 is a flowchart of steps S101 to S501 shown in the second embodiment;
fig. 4 is a schematic structural diagram of a synchronous recording device according to the third embodiment.
In the figure, 1, a control module; 11. a single chip microcomputer; 12. a first photoelectric isolation unit; 13. a second photoelectric isolation unit; 14. a third photo-isolation unit; 15. a USB data interface; 2. a computer; 3. an electrophysiological stimulation pulse delivery module; 31. a stimulus voltage generator; 32. a stimulus voltage amplitude control unit; 33. a pulse control switch unit; 34. an esophageal stimulation electrode; 41. a limb lead electrode; 42. chest lead electrodes; 43. esophageal bipolar lead electrodes; 44. a defibrillation prevention and removal protection unit; 45. an antistatic protection unit; 46. a right leg driving unit; 47. a shield driving unit; 48.a signal amplifying unit; 49. an AD conversion unit; 51. a Wilson network; 52. a band-pass filtering unit; 53. a time constant unit; 54. a low-pass filtering unit; 6. a cardiac electrophysiology stimulator; 7. a printer.
Detailed Description
The present invention will be described in further detail with reference to the accompanying drawings.
Example 1
Referring to fig. 1, the system for synchronously recording the electrocardiogram of the body surface and the esophagus leads disclosed by the invention comprises an electrocardio acquisition module, a control module 1 and an electrophysiological stimulation pulse issuing module 3. The electrocardio acquisition module is configured to synchronously acquire body surface electrocardiosignals and esophageal lead electrocardiosignals; the control module 1 is connected with the electrocardio acquisition module and is used for receiving two electrocardio signals acquired by the electrocardio acquisition module and sending the received two electrocardio signals to the computer 2 for synchronous display of two electrocardiograph waveforms on the same screen; the electrophysiological stimulation pulse delivery module 3 is used for applying electrophysiological stimulation pulses to esophageal cells. Wherein, the time and the stimulation voltage amplitude of the electrophysiological stimulation pulse emitted by the electrophysiological stimulation pulse emitting module 3 are controlled by the computer 2.
Referring to fig. 1, the electrocardiographic acquisition module includes a limb lead electrode 41, a chest lead electrode 42, an esophageal bipolar lead electrode 43, a protection unit, a right leg driving unit 46, a shield driving unit 47, a signal amplifying unit 48, and an AD conversion unit 49. The limb lead electrode 41 and the chest lead electrode 42 are used to acquire body surface electrocardiographic signals. The esophageal bipolar lead electrode 43 is used to acquire esophageal lead electrocardiographic signals. The protection units comprise a defibrillation protection unit 44 for preventing defibrillation voltage from damaging the circuit and an antistatic protection unit 45 for preventing static electricity from affecting signal transmission; the anti-vibration protection unit 44 is connected to the limb lead electrode 41, the chest lead electrode 42, and the esophageal bipolar lead electrode 43, and the anti-static protection unit 45 is connected to the anti-vibration protection unit 44.
Referring to fig. 1, a right leg driving unit 46 is connected to both the anti-static electricity protection unit 45 and the limb lead electrode 41 for reducing common mode interference caused when the patient's body is subjected to electromagnetic interference as an antenna. The shielding driving unit 47 is connected with the antistatic protection unit 45, the limb lead electrode 41, the chest lead electrode 42 and the esophagus bipolar lead electrode 43 for reducing interference on the cable wire; the anti-interference principle is that when a certain potential is applied to the shielding layer of the cable for transmitting the weak signal, the interference caused by the distributed capacitive coupling between the shielding layer and the core wire can be greatly reduced, and the circuit of the shielding driving unit 47 is in the prior art and will not be described herein.
Referring to fig. 1, a signal amplifying unit 48 is connected to the antistatic protection unit 45, and is configured to amplify the collected electrocardiographic signals. A Wilson network 51, a band-pass filter unit 52 and a time constant unit 53 are sequentially connected between the antistatic protection unit 45 and the signal amplification unit 48, and electrocardiosignals output by the antistatic protection unit 45 are selected by matching with leads through the Wilson network 51, so that the attenuation of voltage equalizing resistance to the electrocardiosignals can be reduced, and the input impedance of an amplifier is not influenced; the electrocardiosignal is then filtered by a band-pass filter unit 52 and a time constant unit 53 and then enters a signal amplifying unit 48. The AD conversion unit 49 is connected to the output end of the signal amplification unit 48, and is configured to send the electrocardiosignal amplified by the signal amplification unit 48 to the control module 1 after AD conversion.
Referring to fig. 1, the electrophysiological stimulation pulse delivery module 3 includes a stimulation voltage generator 31, a stimulation voltage amplitude control unit 32, a pulse control switching unit 33, and an esophageal stimulation electrode 34. The stimulus voltage generator 31 is for outputting a stimulus voltage; the stimulus voltage amplitude control unit 32 is connected to the stimulus voltage generator 31 for controlling the amplitude of the output stimulus voltage according to the control signal of the computer 2; the pulse control switch unit 33 is connected with the stimulation voltage amplitude control unit 32 and is used for controlling the issuing time of the electrophysiological stimulation pulse according to the control signal of the computer 2; the esophageal stimulation electrode 34 is connected to the pulse control switch unit 33 for applying an electrophysiological stimulation pulse to esophageal cells.
Referring to fig. 1, the control module 1 includes a single-chip microcomputer 11, a first photoelectric isolation unit 12, a second photoelectric isolation unit 13, and a third photoelectric isolation unit 14, where the first photoelectric isolation unit 12, the second photoelectric isolation unit 13, and the third photoelectric isolation unit 14 are all opto-coupler switches. The singlechip 11 is connected with the electrocardio acquisition module and the computer 2 and is used for acquiring two electrocardio signals and analyzing and processing the two electrocardio signals. The first photoelectric isolation unit 12 is connected with the single chip microcomputer 11 and is used for sending electrocardiosignals which are analyzed and processed by the single chip microcomputer 11 to the USB data interface 15 connected with the computer 2. The second photoelectric isolation unit 13 is connected with the singlechip 11 and the stimulation voltage amplitude control unit 32, and is used for responding to the control signal of the singlechip 11 and controlling the amplitude of the stimulation voltage output by the stimulation voltage amplitude control unit 32; specifically, when the singlechip 11 needs to control the amplitude of the stimulation voltage, a square wave with an adjustable duty ratio is output, and after the square wave is isolated by an optical coupler and shaped by filtering, the control of the voltage amplitude is realized by controlling the amplitude of the stimulation voltage to be output by the stimulation voltage amplitude control unit 32. The third photoelectric isolation unit 14 is connected with the singlechip 11 and the pulse control switch unit 33, and is used for responding to the control signal of the singlechip 11 to control the release time of the electrophysiological stimulation pulse; specifically, when the discharge pulse stimulation is required to be sent, the singlechip 11 controls the third photoelectric isolation unit 14 to be opened through an internal timer.
The implementation principle of the embodiment is as follows:
after passing through the anti-vibration protection unit 44 and the anti-static protection unit 45, the body surface and esophagus lead electrocardiosignals enter the lead conversion and signal amplification unit 48, and the extracted common-mode voltage is output through the right leg driving unit 46 to reduce common-mode interference; the amplified electrocardiosignals are sent to the singlechip 11 after passing through the AD conversion unit 49 and then are sent to the USB data interface 15 through the first photoelectric isolation unit 12, so that the electrocardiosignals are sent to the computer 2 for analysis and the synchronous display of the body surface and esophagus lead electrocardiosignals on the same screen is realized.
The pulse control signal sent by the computer 2 is transmitted to the singlechip 11 through the USB data interface 15, after the singlechip 11 receives the signal, the singlechip 11 isolates and outputs square waves with adjustable duty ratio through the second photoelectric isolation unit 13, and after the square waves are filtered and shaped, the high voltage amplitude output by the stimulation voltage amplitude control unit 32 is controlled to realize the control of the output voltage amplitude of the electrophysiological stimulation pulse issuing module 3; meanwhile, the singlechip 11 sends a pulse width control signal and controls the pulse control switch unit 33 to connect the esophageal stimulating electrode 34 with the stimulating voltage amplitude control unit 32 after being isolated by the third photoelectric isolation unit 14, so that stimulating pulses are generated through the esophageal stimulating electrode 34.
Example two
Referring to fig. 2, the method for synchronously recording the electrocardiogram of the body surface and the esophagus leads disclosed by the invention comprises the following steps:
s100, delivering electrophysiological stimulation pulses through an electrophysiological stimulation pulse generator of the heart and an esophageal stimulation electrode connected with the electrophysiological stimulation pulse generator of the heart; the stimulation voltage amplitude and the release time of the electrophysiological stimulation pulse sent by the electrophysiological stimulation pulse generator of the heart are controlled by a computer;
s200, synchronously acquiring body surface electrocardiosignals and esophageal lead electrocardiosignals by using the same electrocardiograph acquisition equipment;
and S300, sending the acquired body surface electrocardiosignals and the acquired esophageal lead electrocardiosignals to a computer for synchronous display of two electrocardiograph waveforms on the same screen.
Specifically, the step S300 specifically includes the following substeps:
s31, sending the acquired body surface electrocardiosignals and esophageal lead electrocardiosignals to a computer;
s32, dividing the display area of the computer into a main display window and a draggable second view;
s33, synchronously displaying two electrocardiograph waveforms on a main display window according to the body surface electrocardiograph signals and the esophageal lead electrocardiograph signals received by the computer;
s34, selecting a section of electrocardiogram waveform display for comparison with other waveforms, and fixing the electrocardiogram waveform display in a second view, wherein the electrocardiogram waveform in the second view can be set to be displayed in a single column, a double column or a four column according to the requirement, the second view can be stored as an image file, and the format of a picture is BMP, JPG, PNG or GIF.
Referring to fig. 3, when the computer performs on-screen synchronous display of two electrocardiographic waveforms in step S300, the following steps may be further performed:
s101, selecting to keep storing or suspending storing, and simultaneously selecting to keep monitoring or suspending monitoring; if the hold storage is selected, the process proceeds to step S201, if the pause storage is selected, the process proceeds to step S301, if the hold monitoring is selected, the process proceeds to step S401, and if the pause monitoring is selected, the process proceeds to step S501;
s201, recording waveform data, and displaying a flashing indication icon on a main display window of a computer;
s301, suspending recording of waveform data, wherein the indication icon is not flashing any more; if the storage is selected continuously, returning to the step S201, and generating a mark representing the storage interruption in the recorded waveform;
s401, carrying out synchronous display of waveforms on the same screen in a display area of a computer according to the received body surface electrocardiosignals and the esophageal lead electrocardiosignals;
s501, suspending updating of waveforms in a computer display area so as to analyze, mark and measure previous waveforms; if the monitor is to be kept, returning to step S401; wherein, in step S501, when the computer is in a state of keeping storage, the computer still records waveform data; when the computer is in a state of suspending storage, the computer may still suspend recording waveform data.
Example III
Referring to fig. 4, the synchronous recording device comprises a cardiac electrophysiology stimulator 6 connected with a limb lead electrode, a chest lead electrode, an esophagus bipolar lead electrode and an esophagus stimulating electrode, wherein the cardiac electrophysiology stimulator 6 is used for synchronously acquiring body surface electrocardiosignals and esophagus lead electrocardiosignals and sending the two electrocardiosignals to a computer 2 through a USB data interface for synchronous display on the same screen, and the computer 2 is connected with a printer 7 capable of printing the displayed electrocardiosignals. The computer 2 includes a memory and a processor, and the memory stores thereon a computer program that can be loaded by the processor and execute the body surface and esophageal lead electrocardiogram synchronous recording method as in the second embodiment.
Example IV
A computer-readable storage medium storing a computer program capable of being loaded by a processor and executing the body surface and esophageal lead electrocardiogram synchronous recording method as in the second embodiment, the computer-readable storage medium comprising, for example: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a random access Memory (Random Access Memory, RAM), a magnetic disk, or an optical disk, or other various media capable of storing program codes.
It will be apparent that the embodiments described above are some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Claims (7)
1. A system for simultaneous recording of body surface and esophageal lead electrocardiograms, comprising:
an electrocardiograph acquisition module configured to synchronously acquire body surface electrocardiograph signals and esophageal lead electrocardiograph signals;
the control module (1) is connected with the electrocardio acquisition module and is configured to receive the two electrocardiosignals acquired by the electrocardio acquisition module and send the received two electrocardiosignals to the computer (2) for synchronous display of two electrocardiograph waveforms on the same screen; the method comprises the steps of,
an electrophysiological stimulation pulse delivery module (3) configured for applying electrophysiological stimulation pulses to esophageal cells;
wherein the computer (2) is further used for controlling the time and the stimulation voltage amplitude of the electrophysiological stimulation pulse which is sent by the electrophysiological stimulation pulse sending module (3);
the electrophysiological stimulation pulse delivery module (3) comprises: a stimulation voltage generator (31) for outputting a stimulation voltage; a stimulus voltage amplitude control unit (32) connected to the stimulus voltage generator (31) for controlling the amplitude of the output stimulus voltage in accordance with the control signal of the computer (2);
the control module (1) comprises a singlechip (11) which is connected with the electrocardio acquisition module and the computer (2) and is used for acquiring two electrocardiosignals and analyzing and processing the electrocardiosignals; when the single chip microcomputer (11) needs to control the amplitude of the stimulation voltage, a square wave with an adjustable duty ratio is output, and after the square wave is isolated by an optical coupler and filtered and shaped, the control of the voltage amplitude is realized by controlling the amplitude of the stimulation voltage to be output by the stimulation voltage amplitude control unit (32);
the method for transmitting the received two electrocardiograph signals to the computer (2) for synchronous display of two electrocardiograph waveforms on the same screen specifically comprises the following steps: the collected body surface electrocardiosignals and esophagus lead electrocardiosignals are sent to a computer (2); dividing the display area of the computer (2) into a main display window and a draggable second view; according to the body surface electrocardiosignals and the esophagus lead electrocardiosignals received by the computer (2), synchronous display of two electrocardiograph waveforms is carried out on a main display window; selecting a segment of the electrocardiogram waveform display for comparison with other waveforms to fix to a second view, wherein the electrocardiogram waveform in the second view can be set to be displayed in a single column, a double column or four columns, and the second view can be further saved as an image file;
the computer (2) performs on-screen synchronous display of two electrocardiographic waveforms, and further comprises the following steps:
s101, selecting to keep storing or suspending storing, and simultaneously selecting to keep monitoring or suspending monitoring; if the hold storage is selected, the process proceeds to step S201, if the pause storage is selected, the process proceeds to step S301, if the hold monitoring is selected, the process proceeds to step S401, and if the pause monitoring is selected, the process proceeds to step S501;
s201, recording waveform data, and displaying a flashing indication icon in a display area of the computer (2);
s301, suspending recording of waveform data, wherein the indication icon is not flashing any more; if the storage is selected continuously, returning to the step S201, and generating a mark representing the storage interruption in the recorded waveform;
s401, synchronously displaying waveforms on the same screen according to the received body surface electrocardiosignals and the esophageal lead electrocardiosignals;
s501, suspending updating of waveforms in a display area of the computer (2) so as to analyze, mark and measure the previous waveforms; if the monitor is to be kept, returning to step S401;
in step S501, when the computer (2) is in a state of holding storage, the computer (2) still records waveform data; when the computer (2) is in a state of suspending storage, the computer (2) may still suspend recording waveform data.
2. The system of claim 1, wherein the electrocardiograph acquisition module comprises:
a limb lead electrode (41) and a chest lead electrode (42) for acquiring body surface electrocardiosignals;
an esophageal bipolar lead electrode (43) for acquiring esophageal lead electrocardiographic signals;
a protection unit including a defibrillation protection unit (44) for preventing a defibrillation voltage from damaging the circuit and an antistatic protection unit (45) for preventing static electricity from affecting signal transmission; wherein the anti-vibration protection unit (44) is connected with the limb lead electrode (41), the chest lead electrode (42) and the esophagus bipolar lead electrode (43), and the anti-static protection unit (45) is connected with the anti-vibration protection unit (44);
a right leg driving unit (46) connected to both the antistatic protection unit (45) and the limb lead electrode (41) for reducing common mode interference;
a shielding driving unit (47) connected with the antistatic protection unit (45), the limb lead electrode (41), the chest lead electrode (42) and the esophagus bipolar lead electrode (43) for reducing interference on a cable wire;
the signal amplifying unit (48) is connected with the antistatic protection unit (45) and is used for amplifying the collected electrocardiosignals;
and the AD conversion unit (49) is connected with the signal amplification unit (48) and is used for sending the electrocardiosignals amplified by the signal amplification unit (48) into the control module (1) after AD conversion.
3. The system according to claim 1, wherein the electrophysiological stimulation pulse delivery module (3) further comprises:
a pulse control switch unit (33) connected with the stimulation voltage amplitude control unit (32) and used for controlling the issuing time of the electrophysiological stimulation pulse according to the control signal of the computer (2);
and an esophageal stimulation electrode (34) connected with the pulse control switch unit (33) and used for applying electrophysiological stimulation pulses to esophageal cells.
4. A system according to claim 3, characterized in that the control module (1) further comprises:
the first photoelectric isolation unit (12) is connected with the single chip microcomputer (11) and is used for sending electrocardiosignals which are analyzed and processed by the single chip microcomputer (11) to a USB data interface (15) connected with the computer (2);
the second photoelectric isolation unit (13) is connected with the singlechip (11) and the stimulation voltage amplitude control unit (32) and is used for responding to the control signal of the singlechip (11) to control the amplitude of the stimulation voltage output by the stimulation voltage amplitude control unit (32);
and the third photoelectric isolation unit (14) is connected with the singlechip (11) and the pulse control switch unit (33) and is used for responding to the control signal of the singlechip (11) to control the release time of the electrophysiological stimulation pulse.
5. A method for synchronously recording a body surface and esophagus lead electrocardiogram, which is characterized by comprising the following steps:
delivering electrophysiological stimulation pulses through a cardiac electrophysiological stimulation pulse generator and an esophageal stimulation electrode connected with the cardiac electrophysiological stimulation pulse generator;
synchronously acquiring body surface electrocardiosignals and esophageal lead electrocardiosignals by using the same electrocardiosignal acquisition equipment;
the acquired body surface electrocardiosignals and esophageal lead electrocardiosignals are sent to a computer to synchronously display the two electrocardiograph waveforms on the same screen;
the system comprises a heart electrophysiological stimulation pulse generator, a computer, a pulse voltage amplitude and a release time of the electrophysiological stimulation pulse emitted by the heart electrophysiological stimulation pulse generator;
the method comprises the steps of sending the acquired body surface electrocardiosignals and the esophageal lead electrocardiosignals to a computer for synchronous display of two electrocardiograph waveforms on the same screen, and specifically comprises the following steps:
the acquired body surface electrocardiosignals and esophagus lead electrocardiosignals are sent to a computer;
dividing a display area of the computer into a main display window and a draggable second view;
according to the body surface electrocardiosignals and the esophagus lead electrocardiosignals received by the computer, synchronously displaying two electrocardiograph waveforms on a main display window;
selecting a segment of the electrocardiogram waveform display for comparison with other waveforms to fix to a second view, wherein the electrocardiogram waveform in the second view can be set to be displayed in a single column, a double column or four columns, and the second view can be further saved as an image file;
when the computer synchronously displays two electrocardiographic waveforms on the same screen, the method also comprises the following steps:
s101, selecting to keep storing or suspending storing, and simultaneously selecting to keep monitoring or suspending monitoring; if the hold storage is selected, the process proceeds to step S201, if the pause storage is selected, the process proceeds to step S301, if the hold monitoring is selected, the process proceeds to step S401, and if the pause monitoring is selected, the process proceeds to step S501;
s201, recording waveform data, and displaying a flashing indication icon in a display area of a computer;
s301, suspending recording of waveform data, wherein the indication icon is not flashing any more; if the storage is selected continuously, returning to the step S201, and generating a mark representing the storage interruption in the recorded waveform;
s401, synchronously displaying waveforms on the same screen according to the received body surface electrocardiosignals and the esophageal lead electrocardiosignals;
s501, suspending updating of waveforms in a computer display area so as to analyze, mark and measure previous waveforms; if the monitor is to be kept, returning to step S401;
in step S501, when the computer (2) is in a state of holding storage, the computer (2) still records waveform data; when the computer (2) is in a state of suspending storage, the computer (2) may still suspend recording waveform data.
6. A synchronous recording device characterized by comprising a memory and a processor, the memory having stored thereon a computer program that can be loaded by the processor and that performs the method as claimed in claim 5.
7. A computer readable storage medium, characterized in that a computer program is stored which can be loaded by a processor and which performs the method as in claim 5.
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