Transesophageal electrocardio detection and pace-making catheter and integrated device

Abstract

The transesophageal electrocardio detection and pace-making catheter and the integrated device comprise a catheter main body, the catheter body is used for entering the esophagus; electrodes are respectively arranged at a plurality of different positions of the catheter main body; the electrodes comprise an electrocardio electrode and a discharge electrode; the electrocardio-electrode is used for acquiring an electrocardio-signal; the discharge electrode is used for outputting cardiac pacing electrical stimulation signals. The main control module is in electric signal connection with the electrocardio-electrode to obtain an electrocardio-signal; the main control module is in electric signal connection with the discharge electrode and outputs cardiac pacing electrical stimulation signals to the discharge electrode. Moving the catheter main body to obtain electrocardiosignals of the catheter main body at different positions; the electrocardiosignals of the catheter body at different positions are compared, and the catheter body position with the maximum electrocardiosignal amplitude is selected to serve as the transesophageal electrical stimulation cardiac pacing position. According to electrocardiosignal characteristics obtained at different positions, the optimal position of cardiac pacing electrical stimulation can be determined, and corresponding cardiac pacing electrical stimulation signals are output, so that cardiac pacing is safer and more effective.

Description

Technical Field

[0001] The present invention relates to the technical field of transesophageal electrocardiogram measurement and cardiac pacing, and particularly relates to a transesophageal electrocardiogram detection and pacing catheter and an integrated device, as well as a pacing position positioning method based on the transesophageal electrocardiogram detection and pacing catheter and the integrated device. Background Art

[0002] Cardiac pacing is one of the conventional means to restore normal cardiac pacing by means of external electrical stimulation. Usually, it is carried out through chest surface electrodes and with the aid of high voltage and current. Using chest surface electrodes requires a large voltage and input energy, and is likely to cause harm.

[0003] In the prior art, there is also a method of using an intravenous catheter to place an electrode into the heart and performing cardiac pacing with an appropriate current. Using a catheter to place into the heart is complex in operation and high in risk. No matter which cardiac pacing method is used, it is rarely integrated with a physiological signal detection device. That is, the detection of physiological signals and pacing are usually two different devices. The input position of the pacing stimulation signal is usually not accurately positioned, so the signal amount of the pacing signal usually cannot be accurately set. Whether the pacing stimulation signal is suitable is usually simply set according to different population classifications, and it is impossible to accurately apply the corresponding pacing stimulation signal according to an individual's situation. Summary of the Invention

[0004] The technical solution of the present invention overcomes the shortcomings of the prior art and provides a transesophageal electrocardiogram detection and pacing integrated catheter and device. Electrocardiogram electrodes are respectively arranged at multiple different positions of the catheter main body, which is convenient for multiple electrodes to obtain electrocardiogram signals at multiple positions, and can determine the optimal position of cardiac pacing electrical stimulation according to the characteristics of the electrocardiogram signals obtained at different positions, and output the corresponding cardiac pacing electrical stimulation signals, making cardiac pacing safer and more effective.

[0005] The technical solution for solving the above technical problem in the present application is a transesophageal electrocardiogram detection and pacing catheter, including a catheter main body; the catheter main body is used to enter the esophagus; electrodes are respectively arranged at multiple different positions of the catheter main body; the electrodes include electrocardiogram electrodes and discharge electrodes; the electrocardiogram electrodes are used to obtain electrocardiogram signals; the discharge electrodes are used to output cardiac pacing electrical stimulation signals.

[0006] It includes any one of the following technical features: TX1: The electrocardiogram electrode and the discharge electrode are the same electrode; TX2: The electrocardiogram electrode and the discharge electrode are different electrodes, the electrocardiogram electrode and the discharge electrode are arranged in pairs, and each pair is arranged at the same horizontal position of the catheter main body; TX3: A scale is arranged on the catheter main body; TX4: The electrocardiogram electrodes are arranged in sequence and closely on the catheter main body.

[0007] A temperature sensing electrode is also provided on the catheter body for acquiring temperature signals; the temperature sensing electrode is arranged on the outer wall of the catheter body; the temperature sensing electrode is strip-shaped and arranged longitudinally along the catheter body.

[0008] A temperature sensing electrode is also provided on the catheter body for acquiring temperature signals; TY1: the electrocardiogram electrode, the discharge electrode, and the temperature sensing electrode are arranged on the same electrode patch; TY2: the electrocardiogram electrode, the discharge electrode, and the temperature sensing electrode are arranged on different electrode patches; the electrocardiogram electrode, the discharge electrode, and the temperature sensing electrode are arranged in groups, and each group is arranged at the same horizontal position of the catheter body.

[0009] The technical solution for solving the above technical problem in this application can also be an integrated transesophageal electrocardiogram detection and pacing device, including a catheter body; the catheter body is used to enter the esophagus; electrodes are respectively arranged at multiple different positions of the catheter body; the electrodes include an electrocardiogram electrode and a discharge electrode; the electrocardiogram electrode is used to acquire electrocardiogram signals; the discharge electrode is used to output cardiac pacing electrical stimulation signals; it further includes a main control module; the main control module is electrically connected to the electrocardiogram electrode to acquire electrocardiogram signals; the main control module is electrically connected to the discharge electrode to output cardiac pacing electrical stimulation signals to the discharge electrode.

[0010] A temperature sensing electrode is also provided on the catheter body for acquiring temperature signals; the main control module is electrically connected to the temperature sensing electrode to acquire temperature signals.

[0011] The integrated transesophageal electrocardiogram detection and pacing device includes any one of the following technical features: TX1: the electrocardiogram electrode and the discharge electrode are the same electrode; TX2: the electrocardiogram electrode and the discharge electrode are different electrodes, the electrocardiogram electrode and the discharge electrode are arranged in pairs, and each pair is arranged at the same horizontal position of the catheter body; TX3: a scale is provided on the catheter body; TX4: the electrocardiogram electrodes are arranged closely in sequence on the catheter body.

[0012] A temperature sensing electrode is also provided on the catheter body for acquiring temperature signals; TY1: the electrocardiogram electrode, the discharge electrode, and the temperature sensing electrode are arranged on the same electrode patch; TY2: the electrocardiogram electrode, the discharge electrode, and the temperature sensing electrode are arranged on different electrode patches; the electrocardiogram electrode, the discharge electrode, and the temperature sensing electrode are arranged in groups, and each group is arranged at the same horizontal position of the catheter body.

[0013] A temperature sensing electrode is also provided on the catheter body for acquiring temperature signals; TY3: the temperature sensing electrode is arranged on the outer wall of the catheter body; the temperature sensing electrode is strip-shaped and arranged longitudinally along the catheter body.

[0014] The technical solution for solving the above technical problem in this application can also be a method for positioning the transesophageal electrical stimulation cardiac pacing position, based on an integrated device for transesophageal electrocardiogram detection and pacing; the integrated device for transesophageal electrocardiogram detection and pacing includes a catheter body and a main control module; the catheter body is used to enter the esophagus; electrodes are respectively arranged at multiple different positions of the catheter body; the electrodes include electrocardiogram electrodes; the main control module is electrically connected to the electrocardiogram electrodes and is used to acquire electrocardiogram signals; it includes the following steps: Step A: Move the catheter body to acquire electrocardiogram signals at different positions of the catheter body; Step B: Compare the electrocardiogram signals at different positions of the catheter body and select the position of the catheter body where the electrocardiogram signal amplitude is the largest; Step C: Use the position of the catheter body obtained in Step B as the transesophageal electrical stimulation cardiac pacing position.

[0015] In the integrated device for transesophageal electrocardiogram detection and pacing, the electrodes include discharge electrodes; the main control module is electrically connected to the discharge electrodes and is used to output cardiac pacing electrical stimulation signals to the discharge electrodes, and the discharge electrodes are used to output cardiac pacing electrical stimulation signals to the outside; it further includes Step D, at the transesophageal electrical stimulation cardiac pacing position obtained in Step C, the main control module controls the discharge electrodes to output cardiac pacing electrical stimulation signals to the outside.

[0016] The method for positioning the transesophageal electrical stimulation cardiac pacing position described above includes any one of the following technical features: TX1: The electrocardiogram electrode and the discharge electrode are the same electrode; TX2: The electrocardiogram electrode and the discharge electrode are different electrodes, the electrocardiogram electrode and the discharge electrode are arranged in pairs, and each pair is arranged at the same horizontal position of the catheter body; TX3: A scale is provided on the catheter body; TX4: The electrocardiogram electrodes are arranged closely in sequence on the catheter body.

[0017] The method for positioning the transesophageal electrical stimulation cardiac pacing position described above includes any one of the following technical features: TZ1: A temperature sensing electrode is further provided on the catheter body for acquiring temperature signals; the temperature sensing electrode is arranged on the outer wall of the catheter body; the temperature sensing electrode is strip-shaped and is arranged longitudinally along the catheter body; TZ2: A temperature sensing electrode is further provided on the catheter body for acquiring temperature signals, and the electrocardiogram electrode, the discharge electrode, and the temperature sensing electrode are arranged on the same electrode plate; TZ3: A temperature sensing electrode is further provided on the catheter body for acquiring temperature signals, and the electrocardiogram electrode, the discharge electrode, and the temperature sensing electrode are arranged on different electrode plates; the electrocardiogram electrode, the discharge electrode, and the temperature sensing electrode are arranged in groups, and each group is arranged at the same horizontal position of the catheter body.

[0018] Step D also includes Step D1: determining whether the amplitude of the electrocardiogram signal with the maximum signal amplitude exceeds a set threshold; if the amplitude of the electrocardiogram signal does not exceed the set threshold, the discharge electrode does not release an electrical stimulation signal outward; if the amplitude of the electrocardiogram signal exceeds the set threshold, the discharge electrode releases an electrical stimulation signal outward; it includes any one of the following technical features: Step E: the position where the electrical stimulation signal is released outward is the position of the electrocardiogram signal with the maximum signal amplitude or the position of the discharge electrode closest to this position; Step F: analyzing the electrocardiogram signal with the maximum signal amplitude, and setting the signal amplitude and frequency of the electrical stimulation signal released outward according to the signal amplitude of the electrocardiogram signal with the maximum signal amplitude; Step G: a scale is provided on the catheter body for marking the moving position; after obtaining the position where the electrocardiogram signal with the maximum signal amplitude is located, the position of the catheter body is fixed.

[0019] Compared with the prior art, one of the beneficial effects of the present invention is that electrocardiogram electrodes are respectively provided at multiple different positions on the catheter body, which is convenient for the multiple electrodes to obtain electrocardiogram signals at multiple positions.

[0020] Compared with the prior art, one of the beneficial effects of the present invention is that discharge electrodes are respectively provided at multiple different positions on the catheter body, which is convenient for outputting cardiac pacing electrical stimulation signals at different positions and provides a material basis for accurately outputting cardiac pacing electrical stimulation signals.

[0021] Compared with the prior art, one of the beneficial effects of the present invention is that the electrocardiogram electrode and the discharge electrode are the same electrode, which is convenient for directly outputting a cardiac pacing electrical stimulation signal at the position where the electrocardiogram signal amplitude is the largest, reducing the process of switching and conversion, and being more efficient.

[0022] Compared with the prior art, one of the beneficial effects of the present invention is that the electrocardiogram electrode and the discharge electrode are arranged in pairs, and each pair is arranged at the same horizontal position on the catheter body, which is convenient for obtaining the position where the electrocardiogram signal amplitude is the largest, directly outputting a cardiac pacing electrical stimulation signal, reducing the process of switching and conversion, and being more efficient.

[0023] Compared with the prior art, one of the beneficial effects of the present invention is that a scale is provided on the catheter body, which is convenient for positioning and marking the electrocardiogram electrode and the discharge electrode.

[0024] Compared with the prior art, one of the beneficial effects of the present invention is that the electrocardiogram electrodes are arranged in sequence and closely on the catheter body, which is convenient for obtaining electrocardiogram signals at different positions during the movement process.

[0025] Compared with the prior art, one of the beneficial effects of the present invention is that the temperature sensing electrode is used to obtain temperature signals. The temperature electrode is strip-shaped and arranged longitudinally along the catheter body, which can obtain temperature information at different positions. The temperature signal is used for alarm prompt; when the energy of the stimulation signal is too large, the temperature will also change, and with additional temperature detection, the risk can be reduced.

[0026] Compared with the prior art, one of the beneficial effects of the present invention is that the electrocardiogram electrode, the discharge electrode, and the temperature sensing electrode are arranged on the same electrode patch, which is convenient for obtaining electrocardiogram, discharging, and temperature detection at the same position, and can achieve accurate acquisition of electrocardiogram signals and discharge control at different positions.

[0027] Compared with the prior art, one of the beneficial effects of the present invention is that the transesophageal electrocardiogram detection and pacing integrated device integrates pacing and electrocardiogram detection in one device, reducing the implementation cost. It serves multiple purposes, also improves the accuracy and effectiveness of the applied pacing signal, and can reduce the risk caused by an excessive pacing signal. At the position where the electrocardiogram signal amplitude is the largest, the minimum energy stimulation signal is applied, reducing the process risk, and it is an efficient integrated device.

[0028] Compared with the prior art, one of the beneficial effects of the present invention is that the method for positioning the transesophageal electrical stimulation cardiac pacing position selects the position of the catheter body where the electrocardiogram signal amplitude is the largest; this position is used as the transesophageal electrical stimulation cardiac pacing position. It can perform more accurate pacing position selection and control, and can apply different energy cardiac pacing electrical stimulation signals according to the electrocardiogram signal amplitude sizes obtained at different positions. It is a safer cardiac pacing method and can reduce the risk caused by too large a pacing signal volume. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figures 1 to 6 It is a schematic diagram of a transesophageal electrocardiogram detection and pacing catheter;

[0030] Figure 7 It is a schematic block diagram of a transesophageal electrocardiogram detection and pacing integrated device;

[0031] Figure 8 and Figure 9 It is a schematic flowchart of the method for positioning the transesophageal electrical stimulation cardiac pacing position;

[0032] Figure 10 It is a schematic diagram of electrocardiogram signals obtained at different positions during transesophageal electrocardiogram detection. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0033] The following further details the content of the present invention in conjunction with the accompanying drawings.

[0034] [[ID=****]]As used herein, the term "prepared from" is synonymous with "comprising". The term "comprising" as used herein, "having", "containing" or any other variation thereof, is intended to cover non-exclusive inclusion. For example, a composition, step, method, article or device comprising the listed elements need not be limited to those elements, but may include other elements not expressly listed or elements inherent to such composition, step, method, article or device. The connecting phrase "consisting of" excludes any unstated element, step or component.

[0035] If used in a claim, this phrase will render the claim closed-ended, excluding materials other than those described, except for conventional impurities associated therewith. When the phrase "consisting of" appears in a clause of the claim body rather than immediately following the subject, it only limits the elements described in that clause; other elements are not excluded from the claim as a whole. When a quantity, concentration, or other value or parameter is expressed as a range, a preferred range, or a range defined by a series of upper preferred values and lower preferred values, this should be understood to specifically disclose all ranges formed by any pairing of any range upper limit or preferred value with any range lower limit or preferred value, whether or not the range is separately disclosed. For example, when the range "1 to 5" is disclosed, the described range should be interpreted to include the ranges "1 to 4", "1 to 3", "1 to 2", "1 to 2 and 4 to 5", "1 to 3 and 5", etc. When a numerical range is described herein, unless otherwise stated, the range is intended to include its end values and all integers and fractions within the range. The singular form includes plural referents unless the context clearly dictates otherwise. "Optional" or "any one" means that the matter or event described thereafter may or may not occur, and the description includes both the case where the event occurs and the case where the event does not occur. Approximating language, as used in the specification and claims, is used to modify a quantity, indicating that the present invention is not limited to the specific quantity and also includes a modified portion that is close to the quantity and is acceptable without causing a relevant fundamental functional change. Accordingly, modifying a numerical value with "about", "approximately", etc. means that the present invention is not limited to the exact numerical value. In some instances, the approximating language may correspond to the precision of the instrument for measuring the value. In the specification and claims of the present application, range limitations may be combined and / or interchanged, and if not otherwise stated, these ranges include all sub-ranges subsumed therein. In addition, the indefinite articles "a" and "an" before an element or component of the present invention do not limit the quantity requirement (i.e., the number of occurrences) of the element or component. Thus, "a" or "an" should be construed to include one or at least one, and the singular form of an element or component also includes the plural form unless the quantity is clearly meant to be singular.

[0036] Cardiac pacing is one of the conventional means of restoring normal cardiac pacing by external electrical stimulation, usually through chest surface electrodes and with the aid of high voltage and current. Using chest surface electrodes requires a large voltage and input energy and is prone to causing harm.

[0037] As described above, there are many problems with the cardiac pacing methods in the prior art. In some of the prior art, using external surface electrodes requires a larger voltage and input energy and is prone to causing harm.

[0038] In another part of the prior art, an intravascular catheter is used to place an intracardiac electrode, and cardiac pacing is performed with an appropriate current. Placing an electrode into the heart using a catheter is complex and risky.

[0039] In the prior art, there are few integrated devices that combine a cardiac pacing device and multi-physiological signal monitoring. In particular, an integrated device that combines transesophageal electrocardiogram signal and temperature signal detection and pacing has not been seen.

[0040] Regardless of the type of cardiac pacing method, it is rarely integrated with a physiological signal detection device. That is, the detection of physiological signals and pacing are usually two different devices. The input position of the pacing stimulation signal is usually not accurately positioned, so the signal amount of the pacing signal usually cannot be accurately set. Whether the pacing stimulation signal is appropriate is usually only simply set according to different population classifications, and it is impossible to accurately apply the corresponding pacing stimulation signal according to an individual's situation.

[0041] The standard name of esophageal electrophysiological examination is transesophageal cardiac electrophysiological examination, which is a non-invasive examination method that helps diagnose and treat certain arrhythmia diseases by monitoring the electrophysiological parameters of various parts of the heart. Transesophageal cardiac electrophysiological examination takes advantage of the close anatomical relationship between the esophagus and the heart. An electrode catheter is inserted into the esophagus through the nasal cavity, and the atrium or ventricle is indirectly monitored through the esophageal electrode. This examination helps diagnose and treat certain arrhythmia diseases by monitoring the electrophysiological parameters of various parts of the heart, such as diagnosing dual atrioventricular node pathways and multiple pathways, sinus node function examination, measuring the anterograde refractory period of various parts of the heart, and correcting atrial flutter. Transesophageal echocardiogram examination needs to be carried out under the guidance of a doctor. Generally, fasting is required before the examination to avoid the presence of food in the stomach affecting the observation.

[0042] Both the esophagus and the heart are located in the mediastinum. The heart is in front of the esophagus, and the left atrium is adjacent to the esophagus. Therefore, esophageal pacing and recording of electrocardiac activity can be performed for cardiac electrophysiological examination. The anterior wall of the esophagus is closely attached to the posterior wall of the left atrium. Using this anatomical relationship, by placing esophageal electrodes, the electrophysiological characteristics of the heart and the mechanism of arrhythmia can be analyzed by analyzing the simultaneously recorded surface electrocardiogram. Transesophageal cardiac electrophysiological examination is applicable to: 1. Evaluation of sinus node function. 2. Evaluation of atrioventricular conduction function. 3. Evaluation of the bypass function of preexcitation syndrome.

[0043] It is not only possible to detect electrocardiogram (ECG) signals through the esophagus, but also to indirectly stimulate the heart through the esophagus. Although it is an indirect stimulation, compared with external stimulation, the stimulation through the esophagus is closer to the heart. Therefore, the amplitude of the stimulating electrical signal required to achieve the same stimulating effect is smaller. Therefore, cardiac pacing can also be performed through the esophagus, including transesophageal atrial pacing and transesophageal ventricular pacing. The pacing position can be selected more precisely.

[0044] For the ECG signal detection and stimulation device through the esophagus, it is necessary to design a suitable catheter. The design of the esophageal electrode catheter is different from that of the intracardiac electrode catheter. Special catheters need to be designed for esophageal electrophysiological examinations, and the thickness of the catheter needs to be suitable for entering the esophagus. Compared with intracardiac catheters, the diameter is larger, which is more convenient for setting ECG electrodes. The position setting of the ECG sensing electrodes directly affects the acquisition of ECG signals.

[0045] In the prior art, the ECG signal detection device and the stimulation device are usually separately set. The stimulator also needs to design a corresponding special catheter, with an output voltage of 0 - 50V, a pulse width adjustable to 10ms, and the way of sending pulses is similar to that of the intracardiac stimulator. The position setting of the pacing electrodes directly affects the output effect of the stimulating signal.

[0046] In this application, as Figure 1 shown, in an embodiment of a transesophageal ECG detection and pacing catheter, it includes a catheter body 1010; the catheter body is used to enter the esophagus; electrodes are respectively arranged at multiple different positions of the catheter body; the electrodes include ECG electrodes and discharge electrodes; the ECG electrodes are used to acquire ECG signals; the discharge electrodes are used to output cardiac pacing electrical stimulation signals.

[0047] As Figure 1 shown, in an embodiment of a transesophageal ECG detection and pacing catheter, the ECG electrodes and the discharge electrodes are the same electrode. The electrodes are arranged at equal intervals. Figure 1 The electrical connector at the middle end is a 7 - pin electrical signal connector, of which 6 are used for connecting the ECG electrodes and one is the ground wire. T1 is a temperature sensor, which is arranged at the end of the catheter.

[0048] As Figure 2 and Figure 3 shown, in an embodiment of a transesophageal ECG detection and pacing catheter, it includes a catheter body 2010; the ECG electrodes and the discharge electrodes are different electrodes, the ECG electrodes and the discharge electrodes are arranged in pairs, and each pair is arranged at the same horizontal position of the catheter body. Figure 2 What is shown in Figure 3 is the ECG electrode;

[0049] In some embodiments of the transesophageal electrocardiogram detection and pacing catheter, a scale is provided on the catheter body; the scale is used to mark the depth of the catheter entering the esophagus.

[0050] For example Figure 4 , in an embodiment of the transesophageal electrocardiogram detection and pacing catheter, it includes a catheter body 3010; each electrocardiogram electrode is closely arranged in sequence on the catheter body.

[0051] For example Figure 5 , in an embodiment of the transesophageal electrocardiogram detection and pacing catheter, it includes a catheter body 4010; a temperature sensing electrode is further provided on the catheter body for obtaining a temperature signal; the temperature sensing electrode is arranged on the outer wall of the catheter body; the temperature sensing electrode T4 is strip-shaped and arranged longitudinally along the catheter body. The label of the temperature sensing electrode in Figure 5 is T4.

[0052] In some embodiments of the transesophageal electrocardiogram detection and pacing catheter, a temperature sensing electrode is further provided on the catheter body for obtaining a temperature signal; the electrocardiogram electrode, the discharge electrode, and the temperature sensing electrode are arranged on the same electrode plate.

[0053] For example Figure 6 , in an embodiment of the transesophageal electrocardiogram detection and pacing catheter, it includes a catheter body 5010; the electrocardiogram electrode, the discharge electrode, and the temperature sensing electrode are arranged on different electrode plates; the electrocardiogram electrode, the discharge electrode, and the temperature sensing electrode are arranged in groups, and each group is arranged at the same horizontal position of the catheter body. The label of the temperature sensing electrode in the figure is T2.

[0054] For example Figure 7 , in an embodiment of an integrated transesophageal electrocardiogram detection and pacing device, it includes a catheter body; the catheter body is used to enter the esophagus; electrodes are respectively provided at multiple different positions of the catheter body; the electrodes include an electrocardiogram electrode and a discharge electrode; the electrocardiogram electrode is used to obtain an electrocardiogram signal; the discharge electrode is used to output a cardiac pacing electrical stimulation signal; it further includes a main control module; the main control module is electrically connected to the electrocardiogram electrode to obtain the electrocardiogram signal; the main control module is electrically connected to the discharge electrode to output a cardiac pacing electrical stimulation signal to the discharge electrode. A temperature sensing electrode is further provided on the catheter body for obtaining a temperature signal; the main control module is electrically connected to the temperature sensing electrode to obtain the temperature signal.

[0055] For example Figure 8, in an embodiment of a method for positioning the transesophageal electrical stimulation cardiac pacing position, based on a transesophageal electrocardiogram detection and pacing integrated device; the transesophageal electrocardiogram detection and pacing integrated device includes a catheter body and a main control module; the catheter body is used to enter the esophagus; electrodes are respectively arranged at multiple different positions of the catheter body; the electrodes include electrocardiogram electrodes; the main control module is electrically connected to the electrocardiogram electrodes for acquiring electrocardiogram signals; the following steps are included, step A: move the catheter body to acquire electrocardiogram signals at different positions of the catheter body; step B: compare the electrocardiogram signals at different positions of the catheter body and select the position of the catheter body where the electrocardiogram signal amplitude is the largest; step C: use the position of the catheter body obtained in step B as the transesophageal electrical stimulation cardiac pacing position.

[0056] As Figure 9 , in an embodiment of a method for positioning the transesophageal electrical stimulation cardiac pacing position, in the transesophageal electrocardiogram detection and pacing integrated device, the electrodes include discharge electrodes; the main control module is electrically connected to the discharge electrodes for outputting cardiac pacing electrical stimulation signals to the discharge electrodes, and the discharge electrodes are used to output cardiac pacing electrical stimulation signals to the outside; step D is further included, at the transesophageal electrical stimulation cardiac pacing position obtained in step C, the main control module controls the discharge electrodes to output cardiac pacing electrical stimulation signals to the outside.

[0057] As Figure 10 As shown, in transesophageal electrocardiogram detection, it can be seen that the electrocardiogram signals obtained at different positions are different; moreover, the electrocardiogram signal is a vector, so the electrocardiogram signals obtained by performing vector operations on different electrodes will also be different. In this application, the electrocardiogram signal can be obtained based on the electrocardiogram vector operation of fixed electrodes. It can also be obtained based on the electrocardiogram vector operation of non-fixed electrodes, and the electrocardiogram vectors on the electrodes required can be flexibly selected for operation according to needs to obtain the electrocardiogram signal.

[0058] As Figure 9 , in an embodiment of a method for positioning the transesophageal electrical stimulation cardiac pacing position, step D1 is further included in step D: determine whether the amplitude of the electrocardiogram signal with the largest signal amplitude exceeds a set threshold; if the amplitude of the electrocardiogram signal does not exceed the set threshold, the discharge electrodes do not release electrical stimulation signals to the outside; if the amplitude of the electrocardiogram signal exceeds the set threshold, the discharge electrodes release electrical stimulation signals to the outside.

[0059] In some embodiments of the method for positioning the transesophageal electrical stimulation cardiac pacing position, step E is included: the position where the electrical stimulation signal is released to the outside is the position where the electrocardiogram signal with the largest signal amplitude is located or the position of the discharge electrode closest to this position.

[0060] In some embodiments of the method for positioning the transesophageal electrical stimulation cardiac pacing position, it includes step F: analyzing the electrocardiogram signal with the maximum signal amplitude, and setting the signal amplitude and frequency of the externally released electrical stimulation signal according to the signal amplitude of the electrocardiogram signal with the maximum signal amplitude.

[0061] In some embodiments of the method for positioning the transesophageal electrical stimulation cardiac pacing position, it includes step G: a scale is provided on the catheter body for marking the moving position; after obtaining the position where the electrocardiogram signal with the maximum signal amplitude is located, the position of the catheter body is fixed.

[0062] A catheter electrode with an electrode and a temperature sensor is inserted through the esophagus. First, it combines electrical stimulation, electrical signal sensing, and temperature sensing into one, improving usability. Second, it adopts electrode control technology, which can realize the adaptive adjustment of transesophageal stimulation and signal monitoring, obtain the best sensing and stimulation effects, and realize the synchronous monitoring of transesophageal cardiac pacing, electrocardiogram, and core body temperature.

[0063] The best pacing stimulation effect can be achieved with the smallest stimulation signal.

[0064] The above are only embodiments of the present application, and thus do not limit the scope of the present application. Any equivalent structural or equivalent process transformation made by using the content of the application specification and the drawings, or directly or indirectly applied in other related technical fields, are similarly included in the scope of protection of the present application.

Claims

1. An esophageal electrocardiogram detection and pacing catheter, characterized in that it includes a catheter body; the catheter body is used to enter the esophagus; electrodes are respectively arranged at multiple different positions of the catheter body; the electrodes include electrocardiogram electrodes and discharge electrodes; the electrocardiogram electrodes are used to acquire electrocardiogram signals; the discharge electrodes are used to output cardiac pacing electrical stimulation signals.

2. The esophageal electrocardiogram detection and pacing catheter according to claim 1, characterized in that it includes any one of the following technical features: TX1: The electrocardiogram electrode and the discharge electrode are the same electrode; TX2: The electrocardiogram electrode and the discharge electrode are different electrodes, the electrocardiogram electrodes and the discharge electrodes are arranged in pairs, and each pair is arranged at the same horizontal position of the catheter body; TX3: A scale is provided on the catheter body; TX4: The electrocardiogram electrodes are arranged in sequence and closely on the catheter body.

3. The esophageal electrocardiogram detection and pacing catheter according to claim 1, characterized in that a temperature sensing electrode is further provided on the catheter body for acquiring temperature signals; the temperature sensing electrode is arranged on the outer wall of the catheter body; the temperature sensing electrode is strip-shaped and arranged longitudinally along the catheter body.

4. The esophageal electrocardiogram detection and pacing catheter according to claim 1, characterized in that a temperature sensing electrode is further provided on the catheter body for acquiring temperature signals; TY1: The electrocardiogram electrode, the discharge electrode, and the temperature sensing electrode are arranged on the same electrode plate; TY2: The electrocardiogram electrode, the discharge electrode, and the temperature sensing electrode are arranged on different electrode plates; the electrocardiogram electrodes, the discharge electrodes, and the temperature sensing electrodes are arranged in groups, and each group is arranged at the same horizontal position of the catheter body.

5. An esophageal electrocardiogram detection and pacing integrated device, characterized in that it includes a catheter body; the catheter body is used to enter the esophagus; electrodes are respectively arranged at multiple different positions of the catheter body; the electrodes include electrocardiogram electrodes and discharge electrodes; the electrocardiogram electrodes are used to acquire electrocardiogram signals; the discharge electrodes are used to output cardiac pacing electrical stimulation signals; it further includes a main control module; the main control module is electrically connected to the electrocardiogram electrodes to acquire electrocardiogram signals; the main control module is electrically connected to the discharge electrodes to output cardiac pacing electrical stimulation signals to the discharge electrodes.

6. The esophageal electrocardiogram detection and pacing integrated device according to claim 5, characterized in that a temperature sensing electrode is further provided on the catheter body for acquiring temperature signals; the main control module is electrically connected to the temperature sensing electrode to acquire temperature signals.

7. The esophageal electrocardiogram detection and pacing integrated device according to claim 5, characterized in that it includes any one of the following technical features: TX1: The electrocardiogram electrode and the discharge electrode are the same electrode; TX2: The electrocardiogram electrode and the discharge electrode are different electrodes, the electrocardiogram electrodes and the discharge electrodes are arranged in pairs, and each pair is arranged at the same horizontal position of the catheter body; TX3: A scale is provided on the catheter body; TX4: The electrocardiogram electrodes are arranged in sequence and closely on the catheter body.

8. The esophageal electrocardiogram detection and pacing integrated device according to claim 5, characterized in that a temperature sensing electrode is further provided on the catheter body for acquiring temperature signals; TY1: The electrocardiogram electrode, the discharge electrode, and the temperature sensing electrode are arranged on the same electrode patch; TY2: The electrocardiogram electrode, the discharge electrode, and the temperature sensing electrode are arranged on different electrode patches; the electrocardiogram electrode, the discharge electrode, and the temperature sensing electrode are set in groups, and each group is arranged at the same horizontal position of the catheter body.

9. The transesophageal electrocardiogram detection and pacing integrated device according to claim 5, characterized in that a temperature sensing electrode is further arranged on the catheter body for acquiring a temperature signal; TY3: The temperature sensing electrode is arranged on the outer wall of the catheter body; the temperature sensing electrode is strip-shaped and arranged longitudinally along the catheter body.

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