Wireless charging system for implantable cardiac pacemaker

Abstract

The invention relates to the technical field of cardiac pacemaker wireless charging, in particular to an implantable cardiac pacemaker wireless charging system which comprises a wireless charging management platform, a charging information base, a stable performance analysis unit, an induction supervision unit, an induction charging evaluation unit, a side charging self-checking unit and a charging management unit. According to the invention, the external charging end of the cardiac pacemaker is preliminarily analyzed to ensure the charging stability and safety of the cardiac pacemaker, and the sensing state information is further subjected to dynamic charging safety supervision, evaluation and analysis in a deep manner to ensure the continuous and stable charging performance of the cardiac pacemaker. And analysis is carried out from two points of charging characteristics and side user states in an information feedback mode, so that on one hand, the overall reliability of the cardiac pacemaker in the charging period can be known, and on the other hand, reasonable and targeted management of cardiac pacemaker charging can be carried out, and potential risks of the cardiac pacemaker in the charging period can be reduced.

Description

Technical Field

[0001] The present invention relates to the technical field of wireless charging of cardiac pacemakers, and in particular to a wireless charging system for an implantable cardiac pacemaker. Background Art

[0002] An implantable cardiac pacemaker is an electronic therapeutic device implanted in the human body. It emits electrical pulses powered by a battery through a pulse generator, which are conducted through electrode wires to stimulate the myocardium on the inner surface of the heart, causing the heart to be stimulated and contracted, allowing the human body to achieve an appropriate heart rate pace, thereby achieving the purpose of treating heart dysfunction caused by arrhythmia.

[0003] When the battery capacity decreases further, it will affect the normal operation of the pacemaker, so the pacemaker needs to be charged and managed. However, in the existing technology, it is impossible to safely monitor the charging stability of the pacemaker, which leads to the inability to charge the pacemaker continuously and stably, thereby reducing the charging efficiency and safety of the pacemaker. In addition, it is impossible to monitor the charging characteristics and user status of the pacemaker during the charging process, and thus it is impossible to reasonably manage the pacemaker, which increases the potential risk of hidden dangers during the pacemaker charging period.

[0004] In view of the above technical defects, a solution is now proposed. Summary of the Invention

[0005] The purpose of the present invention is to provide an implantable cardiac pacemaker wireless charging system to solve the above-mentioned technical defects. The present invention preliminarily analyzes the external charging terminal of the pacemaker so as to intuitively understand the charging status of the external charging terminal of the pacemaker, so as to timely early warning feedback management to ensure the charging stability and safety of the pacemaker. The present invention further conducts dynamic charging safety supervision and evaluation analysis on the sensing status information in an in-depth manner to determine whether the charging current is stable to ensure the continuous and stable charging performance of the pacemaker. The charging safety analysis is performed from two points of view, charging characteristics and side user status, through information feedback. On the one hand, it helps to understand the overall reliability of the pacemaker charging period, and on the other hand, it helps to reasonably and targetedly manage the charging of the pacemaker to reduce the potential hidden dangers and risks during the pacemaker charging period, and at the same time helps to reduce the pain caused by pacemaker charging.

[0006] The object of the present invention can be achieved by the following technical solutions: an implantable cardiac pacemaker wireless charging system, comprising a wireless charging management platform, a charging information database, a stability performance analysis unit, an inductive supervision unit, an inductive charging evaluation unit, a side charging self-test unit, and a charging management unit; The wireless charging management platform retrieves the charging environment information of the pacemaker from the charging information database and sends the charging environment information to the stability performance analysis unit; After receiving the charging environment information, the stability performance analysis unit immediately performs a charging performance safety assessment analysis on the charging environment information, compares and analyzes the obtained charging stability risk factor D, and obtains a stable signal or a floating signal; The response monitoring unit is used to respond to the stable signal and collect the induction state information of the pacemaker receiving coil, and perform dynamic charging safety supervision assessment and analysis on the induction state information, perform discrimination processing on the obtained dynamic discrete index, and obtain a dynamic balance signal or an alarm signal; The inductive charging evaluation unit responds to the dynamic balance signal and collects charging performance information of the pacemaker, and performs internal charging characteristic safety supervision evaluation analysis on the charging performance information to obtain a normal signal or an abnormal signal; The side charging self-test unit is used to respond to the dynamic balance signal and collect the user's status characteristic parameters. At the same time, it performs side charging abnormality risk feedback analysis on the status characteristic parameters, compares and analyzes the obtained charging heart rate risk value, and obtains a safety signal or risk signal; Further interactive fusion analysis is performed on normal signals, abnormal signals, safety signals and risk signals to obtain charging signals or management signals.

[0007] Preferably, the charging performance safety assessment analysis process of the stability performance analysis unit is as follows: monitoring a pacemaker charging period and setting it as a time threshold, obtaining the pacemaker's remaining power depth within the time threshold, and comparing and analyzing the remaining power depth with a preset remaining power depth threshold to obtain a charging alarm signal; The remaining power depth represents the ratio between the energy storage capacity corresponding to the remaining power and the total energy storage capacity.

[0008] Preferably, when generating a charging alarm signal, the time threshold is divided into i sub-time periods, where i is a natural number greater than zero. The difference between the maximum electromagnetic intensity and the minimum electromagnetic intensity of the charging electromagnetic field of the pacemaker in each sub-time period is obtained and set as the electromagnetic intensity span value. The electromagnetic intensity floating value of the pacemaker is then obtained based on the electromagnetic intensity span value. The electromagnetic intensity floating value represents the ratio between the number of sub-time periods corresponding to the electromagnetic intensity span value being greater than or equal to the preset electromagnetic intensity span value threshold and the total number of sub-time periods; Acquiring charging environment information of the pacemaker in each sub-time period, the charging environment information including a temperature deviation value and an electromagnetic interference mean value, and setting the number of temperature deviation values ​​and electromagnetic interference mean values ​​that are greater than or equal to a corresponding preset threshold as an external interference index; The temperature deviation value indicates the duration that the ambient temperature exceeds the preset temperature threshold; The electromagnetic intensity floating value and the external interference index are changed to DQ and WG respectively, and the electromagnetic intensity floating value DQ and the external interference index WG are substituted into the formula to obtain the charging stability risk coefficient D. The charging stability risk coefficient D is compared and analyzed with the preset charging stability risk coefficient threshold value recorded and stored internally to generate a stable signal or a floating signal.

[0009] Preferably, the dynamic charging safety supervision evaluation and analysis process of the induction supervision unit is as follows: Acquire sensing state information of the pacemaker in each sub-time period, the sensing state information representing a current characteristic curve, and then obtain the maximum peak value and minimum trough value in the current characteristic curve, and set the average of the maximum peak value and the minimum trough value as the time period current average; The difference between the period current average and the preset period current average threshold is obtained, and the ratio between the number of times the difference between the period current average and the preset period current average threshold is greater than the preset threshold and the total number is set as a dynamic discrete index, and the dynamic discrete index is judged and processed to generate a dynamic balance signal or an alarm signal.

[0010] Preferably, the internal charging feature safety supervision assessment and analysis process of the inductive charging assessment unit is as follows: obtaining charging performance information of the pacemaker in each sub-time period, the charging performance information including a temperature performance value and an efficiency performance value, obtaining a ratio between the number of sub-time periods corresponding to the temperature performance value being greater than a preset temperature performance value threshold, or the efficiency performance value being greater than a preset efficiency performance value threshold, and the total number of sub-time periods, and setting the ratio as a charging characteristic deviation index; The charging characteristic deviation index is discriminated and processed to generate a normal signal or an abnormal signal.

[0011] Preferably, the temperature performance value represents the size of the area enclosed by the temperature characteristic curve of the pacemaker housing and the X-axis in the sub-time period; the efficiency performance value represents the duration corresponding to the charging efficiency of the pacemaker being lower than the preset charging efficiency threshold in the sub-time period.

[0012] Preferably, the side charging abnormality risk feedback analysis process of the side charging self-checking unit is as follows: Obtaining the maximum and minimum charging current values ​​of the user's pacemaker within the time threshold, and then constructing a charging current range for the pacemaker, comparing and analyzing the charging current range with a preset charging current range, and obtaining a set heart rate characteristic curve of a historical user's normal charging corresponding to a charging current range that falls within the preset charging current range; Obtaining the user's actual heart rate characteristic curve within the time threshold, and then obtaining the difference between the actual heart rate characteristic curve and the set heart rate characteristic curve, and setting it as the charging heart rate risk value; The charging heart rate risk value is compared and analyzed with the preset charging heart rate risk value threshold recorded and stored internally to generate a safety signal or a risk signal.

[0013] The beneficial effects of the present invention are as follows: (1) The present invention preliminarily analyzes the external charging terminal angle of the pacemaker to intuitively understand the charging status of the external charging terminal of the pacemaker, so as to provide timely early warning feedback management to ensure the charging stability and safety of the pacemaker. In addition, the present invention further conducts dynamic charging safety supervision and evaluation analysis on the sensing status information in an in-depth manner to determine whether the charging current is stable, thereby ensuring the continuous and stable charging performance of the pacemaker. (2) The present invention performs charging safety analysis from two perspectives, charging characteristics and user status, through information feedback. On the one hand, it helps to understand the overall reliability of the pacemaker charging period. On the other hand, it helps to manage the charging of the pacemaker in a reasonable and targeted manner, so as to reduce the potential risks of hidden dangers during the pacemaker charging period, and at the same time helps to reduce the pain caused by pacemaker charging. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] The present invention will be further described below with reference to the accompanying drawings; Figure 1 It is a flow chart of the system of the present invention; Figure 2 This is a reference analysis diagram for Example 2 of the present invention. DETAILED DESCRIPTION

[0015] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0016] Example 1: See also Figures 1 to 2As shown, the present invention is a wireless charging system for an implantable cardiac pacemaker, comprising a wireless charging management platform, a charging information library, a stability performance analysis unit, an inductive supervision unit, an inductive charging evaluation unit, a side charging self-test unit, and a charging management unit. The charging information library is in a one-way communication connection with the wireless charging management platform, the wireless charging management platform is in a one-way communication connection with the stability performance analysis unit, the stability performance analysis unit is in a one-way communication connection with both the inductive supervision unit and the charging management unit, the inductive supervision unit is in a one-way communication connection with the inductive charging evaluation unit, the side charging self-test unit, and the charging management unit, the inductive charging evaluation unit is in a one-way communication connection with the side charging self-test unit, and the side charging self-test unit is in a one-way communication connection with the charging management unit. The wireless charging management platform retrieves the charging environment information of the pacemaker from the charging information database and sends the charging environment information to the stability performance analysis unit. After receiving the charging environment information, the stability performance analysis unit immediately performs a charging performance safety assessment analysis on the charging environment information to determine whether the external charging terminal of the pacemaker is normal in the current period, so as to provide timely early warning feedback management to ensure the charging stability of the pacemaker. The specific charging performance safety assessment analysis process is as follows: The pacemaker charging period is monitored and set as a time threshold. The remaining power depth of the pacemaker within the time threshold is obtained, and the remaining power depth is compared and analyzed with the preset remaining power depth threshold: If the remaining power depth is greater than the preset remaining power depth threshold, no signal is generated; If the remaining power depth is less than or equal to the preset remaining power depth threshold, a charging alarm signal is generated; In the embodiment of the present invention, the remaining power depth represents the ratio between the energy storage capacity corresponding to the remaining power and the total energy storage capacity; When a charging alarm signal is generated, the time threshold is divided into i sub-time periods, where i is a natural number greater than zero. The difference between the maximum and minimum electromagnetic intensity of the charging electromagnetic field of the pacemaker in each sub-time period is obtained. The difference between the maximum and minimum electromagnetic intensity of the charging electromagnetic field is set as the electromagnetic intensity span value. The electromagnetic intensity floating value of the pacemaker is then obtained based on the electromagnetic intensity span value. It should be noted that the larger the electromagnetic intensity floating value, the greater the risk of abnormal stability of the charging electromagnetic field. In the embodiment of the present invention, the electromagnetic intensity floating value represents the ratio between the number of sub-time periods corresponding to the electromagnetic intensity span value being greater than or equal to the preset electromagnetic intensity span value threshold and the total number of sub-time periods; Obtaining charging environment information for the pacemaker during each sub-time period, including temperature deviation values ​​and electromagnetic interference mean values, and setting the number of temperature deviation values ​​and electromagnetic interference mean values ​​that are greater than or equal to corresponding preset thresholds as an external interference index. It should be noted that a larger value of the external interference index indicates a greater risk to the stability of the charging electromagnetic field of the pacemaker. In the embodiment of the present invention, the temperature deviation value indicates the duration corresponding to the ambient temperature exceeding the preset temperature threshold; Change the electromagnetic intensity floating value and the external interference index to DQ and WG respectively, and substitute the electromagnetic intensity floating value DQ and the external interference index WG into the formula The charging stability risk coefficient is obtained, where a1 and a2 are the preset error correction factors of the electromagnetic intensity floating value and the external interference index, respectively; a3 is the preset fault tolerance factor; a1, a2, and a3 are all greater than zero; and D is the charging stability risk coefficient. The charging stability risk coefficient D is compared with the preset charging stability risk coefficient threshold stored internally for analysis: If the ratio between the charging stability risk factor D and the preset charging stability risk factor threshold is less than 1, a stabilization signal is generated; If the ratio between the charging stability risk factor D and the preset charging stability risk factor threshold is greater than or equal to 1, a floating signal is generated and the stable signal or floating signal is sent to the charging management unit. After receiving the stable signal or floating signal, the charging management unit immediately performs the preset warning operation corresponding to the stable signal or floating signal, so as to intuitively understand the charging safety and stability of the external charging terminal of the pacemaker, so as to provide timely warning feedback management and ensure the charging stability of the pacemaker; When a stable signal is generated, the induction supervision unit is used to respond to the stable signal and collect the induction status information of the pacemaker receiving coil. The induction status information is then dynamically evaluated for charging safety supervision to determine whether the charging current is stable, thereby ensuring continuous and stable charging of the pacemaker. The specific dynamic charging safety supervision evaluation and analysis process is as follows: Acquire sensing state information of the pacemaker in each sub-time period, the sensing state information representing a current characteristic curve, and then obtain the maximum peak value and minimum trough value in the current characteristic curve, and set the average of the maximum peak value and the minimum trough value as the time period current average; The difference between the period current average and the preset period current average threshold is obtained, and the ratio between the number of times the difference between the period current average and the preset period current average threshold is greater than the preset threshold and the total number is set as the dynamic discrete index, and the dynamic discrete index is judged: If the dynamic discrete index is less than a preset dynamic discrete index threshold, a dynamic balance signal is generated; If the dynamic discrete index is greater than or equal to the preset dynamic discrete index threshold, an alarm signal is generated and sent to the charging management unit. After receiving the alarm signal, the charging management unit immediately performs the preset warning operation corresponding to the alarm signal so as to provide timely feedback management to ensure continuous and stable charging of the pacemaker.

[0017] Example 2: The inductive charging assessment unit responds to the dynamic balance signal and collects the pacemaker's charging performance information. It then performs an internal charging characteristic safety supervision assessment and analysis on the charging performance information. This allows for a safety analysis based on the pacemaker's charging characteristics to understand the pacemaker's charging risks. The specific internal charging characteristic safety supervision assessment and analysis process is as follows: obtaining charging performance information of the pacemaker in each sub-time period, the charging performance information including a temperature performance value and an efficiency performance value, obtaining a ratio between the number of sub-time periods corresponding to the temperature performance value being greater than a preset temperature performance value threshold, or the efficiency performance value being greater than a preset efficiency performance value threshold, and the total number of sub-time periods, and setting the ratio as a charging characteristic deviation index; In the embodiment of the present invention, the temperature performance value represents the size of the area enclosed by the temperature characteristic curve of the pacemaker housing and the X-axis within the sub-time period. It should be noted that the larger the temperature performance value, the greater the risk of abnormal charging of the pacemaker. In the embodiment of the present invention, the efficiency performance value represents the duration during which the charging efficiency of the pacemaker is lower than a preset charging efficiency threshold value within the sub-time period. It should be noted that the larger the efficiency performance value, the greater the risk of abnormal charging of the pacemaker. In the embodiment of the present invention, the charging characteristic deviation index is subjected to discrimination processing: If the charging characteristic deviation index is less than the preset charging characteristic deviation index threshold, a normal signal is generated; If the charging characteristic deviation index is greater than or equal to a preset charging characteristic deviation index threshold, an abnormal signal is generated; The side charging self-test unit is used to respond to dynamic balance signals and collect user status characteristic parameters. It also performs side charging abnormality risk feedback analysis on the status characteristic parameters. This allows the safety performance of the pacemaker charging period to be evaluated from the user's perspective, allowing for reasonable pacemaker charging management. The specific side charging abnormality risk feedback analysis process is as follows: Obtaining the maximum and minimum charging current values ​​of the user's pacemaker within the time threshold, and then constructing a charging current range for the pacemaker, comparing and analyzing the charging current range with a preset charging current range, and obtaining a set heart rate characteristic curve of a historical user's normal charging corresponding to a charging current range that falls within the preset charging current range; In the embodiment of the present invention, each preset charging current interval is set with a set heart rate characteristic curve of a historical user's normal charging; Obtain the user's actual heart rate characteristic curve within the time threshold, and then obtain the difference between the actual heart rate characteristic curve and the set heart rate characteristic curve, and set it as the charging heart rate risk value. It should be noted that the larger the value of the charging heart rate risk value, the greater the potential safety risk of pacemaker charging; Compare and analyze the charging heart rate risk value with the preset charging heart rate risk value threshold stored internally: If the charging heart rate risk value is less than the preset charging heart rate risk value threshold, a safety signal is generated; If the charging heart rate risk value is greater than or equal to the preset charging heart rate risk value threshold, a risk signal is generated; Further interactive fusion analysis of normal signals, abnormal signals, safety signals and risk signals: If a normal signal and a safety signal are generated, a charging signal is obtained; If a normal signal and a risk signal, or an abnormal signal and a safety signal, or an abnormal signal and a risk signal are generated, a management signal is obtained, and the charging signal or the management signal is sent to the charging management unit. After receiving the charging signal or the management signal, the charging management unit immediately performs a preset warning operation corresponding to the charging signal or the management signal. This not only helps to understand the overall safety and stability of the pacemaker charging period, but also helps to reasonably and specifically manage the charging of the pacemaker, thereby reducing the potential risks of hidden dangers during the pacemaker charging period. In summary, the present invention preliminarily analyzes the external charging terminal of the pacemaker so as to intuitively understand the charging status of the external charging terminal of the pacemaker, so as to provide timely early warning feedback management to ensure the charging stability and safety of the pacemaker. In an in-depth manner, the present invention further performs dynamic charging safety supervision and evaluation analysis on the sensing status information to determine whether the charging current is stable to ensure the continuous and stable charging performance of the pacemaker. In addition, the present invention performs charging safety analysis from two points of view, charging characteristics and side user status, through information feedback. On the one hand, it helps to understand the overall reliability of the pacemaker charging period, and on the other hand, it helps to reasonably and specifically manage the charging of the pacemaker to reduce the potential hidden dangers and risks during the pacemaker charging period, and at the same time helps to reduce the pain caused by pacemaker charging.

[0018] The threshold is set to facilitate comparison. The size of the threshold depends on the amount of sample data and the number of bases set by technicians in this field for each set of sample data; as long as it does not affect the proportional relationship between the parameter and the quantized value.

[0019] The above formulas are obtained by collecting a large amount of data and performing software simulation, and a formula close to the actual value is selected. The coefficients in the formula are set by those skilled in the art according to actual conditions. The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with this technical field, within the technical scope disclosed by the present invention, can make equivalent replacements or changes based on the technical solution and inventive concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. An implantable cardiac pacemaker wireless charging system, characterized in that: It includes a wireless charging management platform, a charging information database, a stability performance analysis unit, an induction supervision unit, an induction charging evaluation unit, a side charging self-test unit, and a charging management unit; The wireless charging management platform retrieves the charging environment information of the pacemaker from the charging information database and sends the charging environment information to the stability performance analysis unit; After receiving the charging environment information, the stability performance analysis unit immediately performs a charging performance safety assessment analysis on the charging environment information, compares and analyzes the obtained charging stability risk factor D, and obtains a stable signal or a floating signal; The response monitoring unit is used to respond to the stable signal and collect the induction state information of the pacemaker receiving coil, and perform dynamic charging safety supervision assessment and analysis on the induction state information, perform discrimination processing on the obtained dynamic discrete index, and obtain a dynamic balance signal or an alarm signal; The inductive charging evaluation unit responds to the dynamic balance signal and collects charging performance information of the pacemaker, and performs internal charging characteristic safety supervision evaluation analysis on the charging performance information to obtain a normal signal or an abnormal signal; The side charging self-test unit is used to respond to the dynamic balance signal and collect the user's status characteristic parameters. At the same time, it performs side charging abnormality risk feedback analysis on the status characteristic parameters, compares and analyzes the obtained charging heart rate risk value, and obtains a safety signal or risk signal; Further interactive fusion analysis is performed on normal signals, abnormal signals, safety signals and risk signals to obtain charging signals or management signals.

2. The implantable cardiac pacemaker wireless charging system according to claim 1, wherein: The charging performance safety assessment analysis process of the stability performance analysis unit is as follows: monitoring a pacemaker charging period and setting it as a time threshold, obtaining the pacemaker's remaining power depth within the time threshold, and comparing and analyzing the remaining power depth with a preset remaining power depth threshold to obtain a charging alarm signal; The remaining power depth represents the ratio between the energy storage capacity corresponding to the remaining power and the total energy storage capacity.

3. The implantable cardiac pacemaker wireless charging system according to claim 2, wherein: When a charging alarm signal is generated, the time threshold is divided into i sub-time periods, where i is a natural number greater than zero. The difference between the maximum electromagnetic intensity and the minimum electromagnetic intensity of the charging electromagnetic field of the pacemaker in each sub-time period is obtained and set as the electromagnetic intensity span value. The electromagnetic intensity floating value of the pacemaker is then obtained based on the electromagnetic intensity span value. The electromagnetic intensity floating value represents the ratio between the number of sub-time periods corresponding to the electromagnetic intensity span value being greater than or equal to the preset electromagnetic intensity span value threshold and the total number of sub-time periods; Acquiring charging environment information of the pacemaker in each sub-time period, the charging environment information including a temperature deviation value and an electromagnetic interference mean value, and setting the number of temperature deviation values ​​and electromagnetic interference mean values ​​that are greater than or equal to a corresponding preset threshold as an external interference index; The temperature deviation value indicates the duration that the ambient temperature exceeds the preset temperature threshold; The electromagnetic intensity floating value and the external interference index are changed to DQ and WG respectively, and the electromagnetic intensity floating value DQ and the external interference index WG are substituted into the formula to obtain the charging stability risk coefficient D. The charging stability risk coefficient D is compared and analyzed with the preset charging stability risk coefficient threshold value recorded and stored internally to generate a stable signal or a floating signal.

4. The implantable cardiac pacemaker wireless charging system according to claim 1, wherein: The dynamic charging safety supervision assessment and analysis process of the induction supervision unit is as follows: Acquire sensing state information of the pacemaker in each sub-time period, the sensing state information representing a current characteristic curve, and then obtain the maximum peak value and minimum trough value in the current characteristic curve, and set the average of the maximum peak value and the minimum trough value as the time period current average; The difference between the period current average and the preset period current average threshold is obtained, and the ratio between the number of times the difference between the period current average and the preset period current average threshold is greater than the preset threshold and the total number is set as a dynamic discrete index, and the dynamic discrete index is judged and processed to generate a dynamic balance signal or an alarm signal.

5. The implantable cardiac pacemaker wireless charging system according to claim 1, wherein: The internal charging characteristic safety supervision assessment analysis process of the inductive charging assessment unit is as follows: obtaining charging performance information of the pacemaker in each sub-time period, the charging performance information including a temperature performance value and an efficiency performance value, obtaining a ratio between the number of sub-time periods corresponding to the temperature performance value being greater than a preset temperature performance value threshold, or the efficiency performance value being greater than a preset efficiency performance value threshold, and the total number of sub-time periods, and setting the ratio as a charging characteristic deviation index; The charging characteristic deviation index is discriminated and processed to generate a normal signal or an abnormal signal.

6. The implantable cardiac pacemaker wireless charging system according to claim 5, characterized in that: The temperature performance value represents the size of the area enclosed by the temperature characteristic curve of the pacemaker housing and the X-axis in the sub-time period; the efficiency performance value represents the duration corresponding to the charging efficiency of the pacemaker being lower than the preset charging efficiency threshold in the sub-time period.

7. The implantable cardiac pacemaker wireless charging system according to claim 1, wherein: The side charging abnormality risk feedback analysis process of the side charging self-test unit is as follows: Obtaining the maximum and minimum charging current values ​​of the user's pacemaker within the time threshold, and then constructing a charging current range for the pacemaker, comparing and analyzing the charging current range with a preset charging current range, and obtaining a set heart rate characteristic curve of a historical user's normal charging corresponding to a charging current range that falls within the preset charging current range; Obtaining the user's actual heart rate characteristic curve within the time threshold, and then obtaining the difference between the actual heart rate characteristic curve and the set heart rate characteristic curve, and setting it as the charging heart rate risk value; The charging heart rate risk value is compared and analyzed with the preset charging heart rate risk value threshold recorded and stored internally to generate a safety signal or a risk signal.

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