CN216295009U

CN216295009U - Implanted nerve stimulator

Info

Publication number: CN216295009U
Application number: CN202120789022.6U
Authority: CN
Inventors: 徐天睿
Original assignee: Beijing Lingchuang Yigu Technology Development Co ltd
Current assignee: Beijing Lingchuang Yigu Technology Development Co ltd
Priority date: 2021-04-16
Filing date: 2021-04-16
Publication date: 2022-04-15
Anticipated expiration: 2031-04-16

Abstract

An implantable neurostimulator that communicates with an external energy control device by way of radio frequency and receives electrical energy, comprising: the main control chip comprises a main control CPU, a main control memory and a digital-to-analog conversion current source circuit; the stimulator antenna and the impedance matching circuit thereof are coupled with the external energy controller in a radio frequency way; a rectifying tank circuit that extracts electrical energy from the received input signal and stores the electrical energy; a modulation/demodulation circuit that extracts control information including clinical stimulation parameters from the received input signal; an electrode interface; one or more stimulation electrodes, the electrode interface distributing stimulation pulse sequences to each corresponding stimulation electrode; the main control memory stores the received control information, the digital-to-analog conversion current source circuit generates a stimulation pulse sequence according to clinical stimulation parameters, and the main control CPU controls the operation of the implanted nerve stimulator. The implantable nerve stimulator can avoid treatment failure caused by interruption or unsmooth radio frequency communication.

Description

Implanted nerve stimulator

Technical Field

The utility model relates to an implantable nerve stimulator which forms a nerve stimulation system together with an external energy controller through radio frequency communication. The utility model particularly relates to an implantable nerve stimulator with a main control chip.

Background

Neurostimulation systems incorporating implantable neurostimulators have become widely used in the medical field. In such systems, an implantable neurostimulator is implanted within a patient to effect treatment of the affected site.

Conventional implantable neurostimulators require their own battery to supply power. When the battery is depleted, the neurostimulator implanted in the patient needs to be removed in order to reinstall the battery. In addition, when a physician needs to change the treatment plan, the neurostimulator implanted in the patient also needs to be removed in order to reconfigure the treatment plan. The treatment regimen includes, for example, the pulse width, frequency, etc. of the stimulation pulses. This is clearly painful for patients with long treatment periods.

To address this pain, neurostimulation systems based on radio frequency control have emerged. Chinese utility model patents CN104080509B and CN107789730B disclose such a neurostimulator system. The external energy controller provides electrical stimulation pulses in real time to drive a stimulation electrode of the implantable nerve stimulator so as to apply stimulation signals to a treatment part of a patient; and the external energy controller provides radio frequency electric energy to the implanted nerve stimulator to maintain the operation of the implanted nerve stimulator.

Compared with the traditional implantable neurostimulation system, the radio frequency-based neurostimulator can obtain almost endless electric energy supply, so that the problem of battery exhaustion is not needed to be worried about. Moreover, the radio frequency-based implantable neural stimulator can adjust the electrical stimulation pulse at any time by the external energy controller according to the treatment scheme. There is no concern about repeated implantation problems due to battery depletion and changing treatment regimens.

However, there are many drawbacks to such prior art radio frequency based neurostimulation systems.

Since the external energy controller needs to provide the electrical energy and the input signal (such as various stimulation pulse sequences) to the implantable neurostimulator at the same time, and needs to monitor the working state of the implantable neurostimulator in real time, it may not be able to implement the real-time operation of the implantable neurostimulator, which also has an adverse effect on the treatment process. To solve this problem, CN107789730B adopts a dual-frequency operation mode, which increases the complexity and manufacturing cost of the product and may result in an increase in the volume of the implantable neurostimulator. This increase in volume is clearly detrimental to the implantation of the neurostimulator.

In addition, since the electrical stimulation pulses of the implantable neurostimulator are provided by the external energy controller in real time, reliable communication between the neurostimulator implanted in the patient and the external energy controller must be ensured. The reliability of such communications can be affected by a number of factors. For example, even a very short period of time when the external energy controller is away from the patient by some factor or when the external energy controller is accidentally impacted or damaged, the therapeutic process of the implantable neurostimulator can be adversely affected.

The information disclosed in this background section is only for enhancement of understanding of the general background of the utility model and should not be taken as an acknowledgement or any form of suggestion that this information forms the prior art already known to a person skilled in the art.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an implantable nerve stimulator which forms a nerve stimulation system together with an in-vitro energy controller through radio frequency communication. The neurostimulation system may also include upper computer software to facilitate the set-up of the operation. The operation control of the implanted nerve stimulator is not completed by an external energy controller, but is realized by a main control chip carried by the implanted nerve stimulator. Therefore, the problems of treatment safety and product complexity caused by the need of real-time communication of the implanted nerve stimulator system in the prior art are solved.

Specifically, the present invention provides an implantable neurostimulator which communicates with an external energy controller and receives electric energy by radio frequency, comprising: the main control chip comprises a main control CPU, a main control memory and a digital-to-analog conversion current source circuit (DAC); the stimulator antenna and the impedance matching circuit thereof are coupled with the external energy controller in a radio frequency mode so as to receive input signals containing electric energy and control information from the external energy controller and send data to the external energy controller; a rectification energy storage circuit respectively connected to the impedance matching circuit and the main control chip so as to extract and store electric energy from the received input signal and supply power to the main control chip; the modulation/demodulation circuit is connected to the impedance matching circuit and the main control chip so as to extract control information from the received input signal, transmit the control information to the main control chip, modulate data sent by the main control chip, transmit the modulated data to the impedance matching circuit, and send the modulated data to the external energy controller through the stimulator antenna; the electrode interface is connected to the main control chip, receives polarity distribution information from the main control chip and receives a stimulation pulse sequence from the digital-to-analog conversion current source circuit; one or more stimulation electrodes connected to the electrode interface, the electrode interface distributing the stimulation pulse sequences to each corresponding stimulation electrode according to polarity distribution information; the main control CPU runs the control program to control the digital-to-analog conversion current source circuit to generate the stimulation pulse sequence according to the control information, wherein the control information comprises a clinical stimulation parameter combination which is a parameter combination of polarity distribution information parameters, pulse width parameters, pulse amplitude parameters and pulse frequency parameters.

In the above implantable neurostimulator, preferably, the master memory is a nonvolatile memory.

In the above implantable neurostimulator, preferably, the clinical stimulation parameter combinations include a plurality of groups, each group of clinical stimulation parameter combinations has a respective code, and the control information further includes a clinical stimulation parameter code, and the clinical stimulation parameter codes correspond to the codes of the plurality of groups of clinical stimulation parameter combinations stored in the main control memory in a one-to-one manner.

In the above implantable neurostimulator, preferably, the control information further comprises an up-down shift control command, and the main control chip adjusts the pulse intensity of the stimulation pulse sequence in a step-by-step manner in response to the up-down shift control command.

In the above-mentioned implantable neurostimulator, preferably, the control information further comprises a data reading instruction, and the master CPU responds to the data reading instruction to send the corresponding data stored in the master memory to the external energy controller.

In the above implantable neurostimulator, preferably, the parameters of the clinical stimulation parameter combination further comprise a charge balance time, and the length of the charge balance time is enough to ensure that the charges between the adjacent electrical stimulation pulses are sufficiently released, so as to realize passive charge balance.

In the above-mentioned implantable neurostimulator, preferably, a charge balancing circuit is further connected between the electrode interface and the digital-to-analog conversion current source circuit of the main control chip, and the charge balancing circuit can apply reverse pulses to the electrode interface between adjacent electrical stimulation pulses, thereby realizing active charge balancing.

In the above-mentioned implantable neurostimulator, preferably, the implantable neurostimulator further comprises an operation data memory, which is electrically connected to the main control chip and is used for storing various operation data generated during the operation of the implantable neurostimulator, the control information further comprises a data reading instruction, and the main control CPU responds to the data reading instruction and sends the data stored in the operation data memory to the external energy controller. Further preferably, the operation data memory is a nonvolatile memory.

In the above implantable neurostimulator, preferably, the implantable neurostimulator further comprises a post-measurement feedback circuit, the post-measurement feedback circuit is respectively connected to the electrode interface and the main control chip so as to measure the real-time stimulation parameters on the stimulation electrode and transmit the real-time stimulation parameters to the main control chip, and the main control chip stores the real-time stimulation parameters in the operation data storage.

In the above implantable neural stimulator, preferably, the main control chip compares the real-time stimulation parameters with the clinical stimulation parameters, and corrects the stimulation signals applied to the stimulation electrodes according to the comparison result.

In the above implantable neurostimulator, preferably, the implantable neurostimulator further comprises a pre-measurement feedback circuit, the pre-measurement feedback circuit is electrically connected to the rectification energy storage circuit and the main control chip, so as to measure the real-time electric energy storage amount in the rectification energy storage circuit at any time and transmit the real-time electric energy storage amount to the main control chip, and the main control chip stores the real-time electric energy storage amount in the operation data storage.

In the above implantable neural stimulator, preferably, the main control chip evaluates whether to adjust the electric energy input by the radio frequency according to the real-time electric energy storage amount, and when the real-time electric energy storage amount is lower than a set value, the main control chip sends a power adjustment instruction to the external energy controller antenna through the stimulator antenna and the impedance matching circuit thereof, so as to adjust the transmitting power of the external energy controller.

In the above-mentioned implantable neurostimulator, preferably, the main control chip controls the implantable neurostimulator to periodically send the various operation data to the external energy controller.

The implantable neural stimulator can achieve the following beneficial technical effects. Because the electric pulse stimulation is implemented based on the treatment parameter combination stored in the main control memory of the external energy controller, the external energy controller only needs to provide radio frequency electric energy, and does not need to obtain a real-time stimulation signal containing the stimulation electric pulse from the external energy controller, thereby improving the operation reliability of the implanted nerve stimulator, and avoiding worrying about treatment failure caused by sudden communication interruption or unsmooth communication.

Because the energy storage circuit is arranged in the medical treatment device, the electric energy supply in a short time can be ensured under the condition of sudden communication interruption or unsmooth communication, and the treatment can not be interrupted.

The memory of the implanted nerve stimulator can store various operation parameters and can send the data to the external energy controller in the intermittent treatment period or in the busy communication period, so that the smoothness of communication can be further ensured when the communication is needed, and the performance of the equipment is improved.

The method and apparatus of the present invention have other features and advantages which will be apparent from or are set forth in detail in the accompanying drawings and the following detailed description, which are incorporated herein, and which together serve to explain certain principles of the utility model.

Drawings

Figure 1 illustrates a functional block diagram of one embodiment of a neurostimulation system incorporating an implantable neurostimulator of the present invention.

Figure 2 illustrates a functional block diagram of another embodiment of a neurostimulation system incorporating an implantable neurostimulator of the present invention.

Fig. 3 shows a functional block diagram of an implantable neural stimulator of the present invention.

Fig. 4 shows a functional block diagram of another implantable neurostimulator of the present invention.

It is to be understood that the drawings are not necessarily to scale, illustrating features of the basic principles of the utility model which are somewhat simplified. The specific design features of the utility model disclosed herein, including, for example, specific dimensions, orientations, and configurations, will be determined in part by the particular intended application and use environment.

In the drawings, like or equivalent elements of the utility model are designated with reference numerals throughout the several views of the drawings.

Detailed Description

Reference will now be made in detail to the various embodiments of the utility model, examples of which are illustrated in the accompanying drawings and described below. While the utility model is described in conjunction with the exemplary embodiments, it will be understood that this description is not intended to limit the utility model to those exemplary embodiments. On the contrary, the utility model is intended to cover not only these exemplary embodiments, but also various alternatives, modifications, equivalents and other embodiments, which may be included within the spirit and scope of the utility model as defined by the appended claims.

Figure 1 illustrates a functional block diagram of one embodiment of a neurostimulation system incorporating an implantable neurostimulator of the present invention. As shown in fig. 1, the neurostimulation system comprises an implantable neurostimulator 1 and an external energy controller 2.

Figure 2 illustrates a functional block diagram of another embodiment of a neurostimulation system incorporating an implantable neurostimulator of the present invention. Compared to the embodiment in fig. 1, the embodiment in fig. 2 is added with an upper computer 3. The upper computer is not necessary. The addition of the upper computer is beneficial to improving the human-computer interaction function, so that doctors or patients can operate the nerve stimulation system more conveniently, and more complex functions can be set for the nerve stimulation system conveniently.

As shown in fig. 3, the implantable neurostimulator 1 of the present invention, which communicates with the external energy controller 2 by radio frequency and receives electric energy, comprises: a main control chip 11 including a main control CPU 111, a main control memory 112, and a digital-to-analog conversion current source circuit (i-DAC) 113; a stimulator antenna and its impedance matching circuit 12, which is radio frequency coupled to the external energy controller, to receive input signals containing electrical energy and control information from the external energy controller, and to be able to send data to the external energy controller; a rectifying tank circuit 13 connected to the impedance matching circuit 12 and the main control chip 11, respectively, so as to extract and store electric energy from the received input signal and supply power to the main control chip 11; a modulation/demodulation circuit 14 connected to the impedance matching circuit 12 and the main control chip 11 so as to extract control information from the received input signal and transmit the control information to the main control chip 11, and transmit the data transmitted by the main control chip 11 to the impedance matching circuit after modulating the data, and transmit the data to an external energy controller through a stimulator antenna; an electrode interface 15 connected to the main control chip 11, receiving polarity distribution information from the main control chip 11, and receiving a stimulation pulse sequence from the digital-to-analog conversion current source circuit 113; one or more stimulation electrodes 16 connected to the electrode interface 15, which distributes the stimulation pulse sequences to the respective corresponding stimulation electrodes 16 according to polarity distribution information; the main control memory 112 stores a control program and stores the received control information, the main control CPU runs the control program to control the digital-to-analog conversion current source circuit 113 to generate the stimulation pulse sequence according to the control information, the control information includes a combination of clinical stimulation parameters, and the combination of the clinical stimulation parameters includes a polarity distribution information parameter, a pulse width parameter, a pulse amplitude parameter, and a pulse frequency parameter.

The master memory 112 is preferably a non-volatile memory to store data even after power is removed. In this way, the implantable neurostimulator 1 can be adapted to the entire treatment phase by simply configuring it for each patient according to the treatment protocol before each treatment phase begins. Thus, the need for frequent setup of the implantable neurostimulator 1 by the physician is avoided.

The clinical stimulation parameter combinations may include a plurality of groups, each group of clinical stimulation parameter combinations has a respective code, and the control information further includes a clinical stimulation parameter code, which corresponds to the codes of the plurality of groups of clinical stimulation parameter combinations stored in the main control memory one to one. In this way, the user (doctor or patient) can operate the external energy controller to directly invoke the corresponding treatment protocol (corresponding to the corresponding clinical stimulation parameter combination) according to the progress of the treatment. The trouble that the implantable nerve stimulator needs to be frequently configured along with the improvement of the disease condition of the patient is avoided.

The control information further includes an up-down shift control instruction, and the main control chip 11 adjusts the pulse intensity of the stimulation pulse sequence in a step-by-step manner in response to the up-down shift control instruction. Thus, the patient can adjust the intensity of stimulation at any time according to the experience of the patient. In the implantable neurostimulator 1, the control information also comprises a data reading instruction, and the main control CPU responds to the data reading instruction and sends corresponding data stored in the main control memory to the external energy controller 2. Thus, the patient or physician may obtain various combinations of treatment parameters stored in implantable neurostimulator 1, as well as data generated by the operation of implantable neurostimulator 1.

Implantable neurostimulators employ a sequence of stimulation pulses to treat a patient. When the pulse frequency is high, the charge between adjacent stimulation pulses cannot be sufficiently released, thereby making the actual pulse waveform sequence different from the pulse waveform sequence required for treatment. This will affect the therapeutic effect and also reduce the lifetime of the implantable neurostimulator itself.

In implantable neurostimulator 1, the parameters of the combination of clinical stimulation parameters further include a charge balance time of sufficient length to ensure that the charge between adjacent electrical stimulation pulses is sufficiently released to achieve passive charge balance. Therefore, the problem that the charges between adjacent electric stimulation pulses cannot be released in the existing nerve stimulator is solved.

As shown in fig. 3, in the implantable neurostimulator 1, a charge balancing circuit 17 is further connected between the electrode interface 15 and the digital-to-analog conversion current source circuit 113 of the main control chip 11, and the charge balancing circuit 17 can apply reverse pulses to the electrode interface 15 between adjacent electrical stimulation pulses, so as to realize active charge balancing. Active charge balancing can complete the discharge process faster than passive charge balancing, which is naturally discharged. Clearly, this active charge balancing allows higher stimulation pulse frequencies to be employed. Conversely, charge balancing circuit 17 is not necessary, depending on the frequency of the stimulation pulses employed by implantable neurostimulator 1.

As shown in fig. 3, the implantable neurostimulator 1 further comprises an operation data memory 18 for storing various operation data generated during the operation of the implantable neurostimulator. The control information received from the external energy controller further includes a data reading instruction, and the main control CPU 111 transmits the data stored in the operation data memory 18 to the external energy controller 2 in response to the data reading instruction.

It should be noted that the operation data memory 18 is not necessary, and various operation data generated during the operation of the implantable neurostimulator can be stored in a certain partition of the main memory 112 as long as the storage capacity of the main memory is large enough. The operating data memory 18 is preferably a non-volatile memory to store data even after power is removed. In this way, the external energy controller can retrieve the operation data of the implanted nerve stimulator as required within a period of time within the allowable range of the storage space. Data loss due to sudden communication interruption is also prevented.

As shown in fig. 3, the implantable neurostimulator 1 further comprises a post-measurement feedback circuit 19, wherein the post-measurement feedback circuit 19 is respectively connected to the electrode interface 15 and the main control chip 11, so as to measure the real-time stimulation parameters on the stimulation electrode 16 and transmit the real-time stimulation parameters to the main control chip 11, and the main control chip stores the real-time stimulation parameters in the operation data storage 18.

The main control chip 11 can compare the real-time stimulation parameters with the stored clinical stimulation parameters, and modify the stimulation signals applied to the stimulation electrodes according to the comparison result.

It should be noted that a post-measurement feedback circuit is not necessary. As a simplified configuration, the implantable neurostimulator may be designed to operate in a simple and reliable manner without the need to measure the operating parameters of the stimulation electrodes. This helps to reduce costs.

In the implantable neurostimulator 1 shown in fig. 3, the implantable neurostimulator further comprises a pre-measurement feedback circuit 10, the pre-measurement feedback circuit 10 is arranged between the rectification energy storage circuit 13 and the main control chip 11, so as to measure the real-time electric energy storage amount in the rectification energy storage circuit 13 at any time and transmit the real-time electric energy storage amount to the main control chip 11, and the main control chip stores the real-time electric energy storage amount in the operation data storage 18.

The main control chip 11 evaluates whether the radio frequency input electric energy needs to be adjusted according to the real-time electric energy storage amount, and when the real-time electric energy storage amount is lower than a set value, the main control chip 11 sends a power adjustment instruction to the external energy controller 2 antenna through the stimulator antenna and the impedance matching circuit 12 thereof, so as to adjust the transmitting power of the external energy controller 2.

As described above, the implantable neurostimulator 1 of the present invention has a master memory and an operation data memory. As a data management measure, the main control chip 11 may actively transmit data to the external energy controller, that is, periodically transmit various data stored in the main control memory and/or the operation data memory to the external energy controller.

In the schematic block diagram of the implantable neurostimulator shown in fig. 3, the main control chip 11 only comprises a main control CPU 111, a main control memory 112 and a digital-to-analog conversion current source circuit (i-DAC)113, wherein the circuit parts serve as peripheral circuits. Of course, in consideration of balancing the improvement of integration, the reduction of volume, and the process cost, some or all of the pre-measurement feedback circuit, the modulation/demodulation circuit, the electrode interface, the charge balance circuit, the operation data memory, and the post-measurement feedback circuit may be designed in the main control chip 11. For example, in the schematic block diagram of another implantable neurostimulator shown in fig. 4, the main control chip 11 comprises a main control CPU 111, a main control memory 112, a digital-to-analog conversion current source circuit (i-DAC)113, a pre-measurement feedback circuit 110, a modulation/demodulation circuit 114, an electrode interface 115, a charge balance circuit 117, a running data memory 118 and a post-measurement feedback circuit 119.

In summary, the implantable neurostimulator 1 of the present invention is configured with parameters by the external energy controller, and starts to operate by the external energy controller. Once activated, the implantable neurostimulator 1 begins to operate actively, depending on the configured parameters, to complete the electrode pulse stimulation therapy for the patient.

The implanted nerve stimulator 1 is provided with a rectification energy storage circuit 13, and the electric energy stored by the rectification energy storage circuit 13 is supplied to the whole implanted nerve stimulator 1 to operate. Meanwhile, the rectifying energy storage circuit 13 receives the radio frequency electric energy of the external energy controller 2 for charging so as to maintain the continuous operation of the implanted nerve stimulator 1. The storage of electrical energy in the rectified tank circuit 13 can be monitored by a pre-measurement circuit. When the electric energy storage capacity is reduced, the implanted nerve stimulator 1 sends an instruction to the external energy controller 2, and the external energy controller 2 increases the transmitting power.

In the implantable neurostimulator 1, the electrical pulse stimulation is implemented based on the treatment parameter combination stored in the main control memory of the neurostimulator, so that only radio frequency electrical energy needs to be provided by the external energy controller, and a real-time stimulation signal containing a stimulation electrical pulse does not need to be obtained from the external energy controller. Therefore, even if the communication is interrupted or is not smooth due to an emergency, the treatment failure can not be caused.

Because the energy storage circuit is arranged, even if the radio frequency power supply is interrupted for a short time due to communication interruption or communication unsmooth caused by an emergency, the implanted nerve stimulator can continue to operate for a period of time until the communication is recovered to be normal, so that the treatment is not interrupted.

The memory of the implanted nerve stimulator can store various operation parameters and can send the data to the external energy controller in the intermittent treatment period or in the busy communication period, so that the implanted nerve stimulator can further ensure the smooth communication when in need of communication, thereby improving the performance of the equipment. For example, when a doctor or a patient operates the in-vitro energy controller to send a command to the implanted neural stimulator, the implanted neural stimulator does not send data to the outside to ensure smooth communication.

The foregoing descriptions of specific exemplary embodiments of the present invention have been presented for purposes of illustration and description. They are not intended to be exhaustive or to limit the utility model to the precise forms disclosed, and obviously many modifications and variations are possible in light of the above teaching. The exemplary embodiments were chosen and described in order to explain certain principles of the utility model and its practical application to enable others skilled in the art to make and use various exemplary embodiments of the utility model and various alternatives and modifications as are suited to the particular use contemplated. It is intended that the scope of the utility model be defined by the following claims and their equivalents.

Claims

1. An implantable neural stimulator communicating with an external energy controller by radio frequency and receiving electric energy, comprising:

the main control chip comprises a main control CPU, a main control memory and a digital-to-analog conversion current source circuit;

the stimulator antenna and the impedance matching circuit thereof are coupled with the external energy controller in a radio frequency mode so as to receive input signals containing electric energy and control information from the external energy controller and send data to the external energy controller;

a rectifying tank circuit electrically connected to the impedance matching circuit and the main control chip, respectively, so as to extract and store electric energy from the received input signal and supply power to the main control chip;

the modulation/demodulation circuit is electrically connected to the impedance matching circuit and the main control chip so as to extract control information from the received input signal, transmit the control information to the main control chip, modulate data sent by the main control chip, transmit the modulated data to the impedance matching circuit, and send the modulated data to an external energy controller through a stimulator antenna;

the electrode interface is electrically connected to the main control chip, receives polarity distribution information from the main control chip and receives a stimulation pulse sequence from the digital-to-analog conversion current source circuit;

one or more stimulation electrodes electrically connected to the electrode interface, the electrode interface assigning the stimulation pulse sequences to each corresponding stimulation electrode according to polarity assignment information;

the main control memory stores a control program and stores the received control information, and the control information comprises a clinical stimulation parameter combination which is a parameter combination of a polarity distribution information parameter, a pulse width parameter, a pulse amplitude parameter and a pulse frequency parameter.

2. The implantable neurostimulator of claim 1, wherein the master memory is a non-volatile memory.

3. The implantable neurostimulator of claim 1, wherein a charge balancing circuit is electrically connected between the electrode interface and the digital-to-analog conversion current source circuit of the main control chip, and the charge balancing circuit can apply reverse pulses to the electrode interface between adjacent electrical stimulation pulses, so as to realize active charge balancing.

4. The implantable neurostimulator of claim 1, further comprising an operation data memory electrically connected to the main control chip for storing various operation data energy controllers generated during the operation of the implantable neurostimulator.

5. The implantable neurostimulator of claim 4, wherein the operational data memory is a non-volatile memory.

6. The implantable neurostimulator according to claim 4, further comprising a post-measurement feedback circuit, wherein the post-measurement feedback circuit is electrically connected with the electrode interface and the main control chip respectively so as to measure and transmit real-time stimulation parameters on the stimulation electrode to the main control chip, and the main control chip stores the real-time stimulation parameters in the operation data storage.

7. The implantable neurostimulator according to claim 4, further comprising a pre-measurement feedback circuit, wherein the pre-measurement feedback circuit is electrically connected with the rectifying energy storage circuit and the main control chip so as to measure the real-time electric energy storage amount in the rectifying energy storage circuit at any time and transmit the real-time electric energy storage amount to the main control chip, and the main control chip stores the real-time electric energy storage amount in the operation data storage.