Coil communication and energy transfer system for in-vitro programmable instrument

Abstract

The present application relates to a coil communication and energy transmission system for an external programmer, which is used for communication with and energy transmission to an internal stimulator, and comprises a controller, a transceiver, a signal processing device and an external coil, wherein: the controller is electrically connected with the transceiver, and sends a control signal to the transceiver; the transceiver is communicatively connected with the signal processing device, and is configured to receive the control signal, convert the control signal into a high-frequency control signal, and send the high-frequency control signal to the signal processing device; the signal processing device is electrically connected with the external coil, receives and processes the high-frequency control signal, and sends the processed high-frequency control signal to the external coil; and the external coil, in response to receiving the processed high-frequency control signal, sends a communication and energy transmission signal to the internal stimulator through magnetic field coupling, and receives a working state signal fed back by the internal stimulator.

Description

Technical Field

[0001] This invention relates to the field of communication and power transmission technology for medical electronic devices, and more particularly to a coil communication and power transmission system for an external programmable device. Background Technology

[0002] In existing extracorporeal-in vivo power transfer systems, when wirelessly transmitting energy to therapeutic devices implanted in the patient's body (e.g., an implantable stimulator), there are dipole antenna-based power transfer systems and coil-based power transfer systems. In dipole antenna-based power transfer systems, the dipole antenna has weak directivity, resulting in higher system power consumption to meet power supply requirements.

[0003] To overcome the above problems, coil power transfer schemes have been widely used, but existing technologies still have obvious shortcomings: coils using low-frequency charging methods are large in size; NFC identification systems using coil power transfer cannot support large wireless power supply; and in communication power transfer systems based on dual coils, the power transfer coil and communication coil are separate, which not only leads to more complex circuit design but also increases product size.

[0004] In summary, given the numerous limitations of existing coil-based communication and energy transfer systems in terms of structural design, energy transmission capacity, and integration, further improvements and optimizations are needed.

[0005] The above description of the background technology is only for the purpose of facilitating a deeper understanding of the technical solution of the present invention (the technical means used, the technical problems solved, and the technical effects produced, etc.), and should not be regarded as an admission or in any form an implication that the information constitutes prior art known to those skilled in the art. Summary of the Invention

[0006] To address the shortcomings of existing technologies, this invention proposes a coil communication power transmission system for an external programmable device. This system uses a shared coil for both communication and power transmission to perform bidirectional communication and energy transfer at high frequencies (e.g., 13MHz). It eliminates the need for additional communication coils, power transmission coils, communication antennas, or other communication components, greatly simplifying the internal structural design, significantly reducing system size, lowering hardware costs and clinical implantation difficulty, and thus making it more suitable for clinical applications of wearable medical devices.

[0007] According to an exemplary embodiment of the present invention, a coil communication energy transfer system for an external programmer can be used to communicate with and transfer energy to an in vivo stimulator. The coil communication energy transfer system may include: a controller, a transceiver, a signal processing device, and an external coil. Specifically: the controller is electrically connected to the transceiver and configured to send a control signal including stimulation information and energy transfer information to the transceiver; the transceiver is communicatively connected to the signal processing device and configured to receive the control signal from the controller, convert the received control signal into a high-frequency control signal, and send the high-frequency control signal to the signal processing device; the signal processing device is electrically connected to the external coil and configured to receive the high-frequency control signal from the transceiver, process the received high-frequency control signal to obtain a processed high-frequency control signal, and send the processed high-frequency control signal to the external coil; the external coil is configured to, in response to receiving the processed high-frequency control signal, send a communication energy transfer signal to the in vivo stimulator via magnetic field coupling and receive a working status signal fed back by the in vivo stimulator.

[0008] Preferably, the signal processing device includes a filter electrically connected to the transceiver, the filter being configured to receive a high-frequency control signal from the transceiver and to filter the received high-frequency control signal to generate a filtered signal.

[0009] Preferably, the signal processing device further includes a resonance matching module, which is electrically connected to the filter. The resonance matching module is configured to receive a filtered signal from the filter and perform resonance matching on the received filtered signal to generate a resonance matching signal.

[0010] Preferably, the signal processing device further includes a bandwidth regulator electrically connected to the resonant matching module, the bandwidth regulator being configured to receive a resonant matching signal from the resonant matching module and to perform bandwidth adjustment on the received resonant matching signal to generate a processed high-frequency control signal.

[0011] Preferably, the signal processing device further includes a capacitive voltage divider, which is electrically connected to the resonant matching module and the transceiver respectively. The capacitive voltage divider is configured to acquire the resonant matching signal according to the voltage division ratio to generate a positive energy state signal, and to send the positive energy state signal to the transceiver.

[0012] Preferably, the transceiver is further configured to convert the received positive energy state signal from the capacitor divider into a positive feedback signal, and transmit the converted positive feedback signal to the controller.

[0013] Preferably, the voltage division ratio of the capacitor voltage divider is set by the controller.

[0014] Preferably, the external coil is further configured to send an in vivo feedback signal to the bandwidth regulator in response to a received operating status signal fed back from the in vivo stimulator.

[0015] Preferably, the bandwidth regulator is further configured to perform bandwidth matching on the received in-cell feedback signal and generate a feedback adjustment signal, and transmit the feedback adjustment signal to the resonance matching module; the resonance matching module is further configured to perform resonance matching on the received feedback adjustment signal and generate a feedback resonance matching signal.

[0016] Preferably, the capacitor divider of the signal processing device is further configured to acquire the feedback resonant matching signal according to the voltage division ratio to generate a reverse communication status signal, and send the reverse communication status signal to the transceiver.

[0017] Preferably, the transceiver is further configured to convert the received reverse communication status signal from the capacitor divider into a reverse feedback signal, and transmit the converted reverse feedback signal to the controller.

[0018] Preferably, the resonant matching module includes a fixed capacitor and a variable capacitor, the fixed capacitor being electrically connected to the variable capacitor, and the variable capacitor being electrically connected to the controller. The capacitance value of the variable capacitor is adjusted by the controller to adapt to the impedance of the external coil port under different environments.

[0019] Preferably, the bandwidth regulator includes an adjustable impedance device, which is electrically connected to the controller. The impedance of the adjustable impedance device is adjusted by the controller to adapt to different communication bandwidth requirements.

[0020] Preferably, the working status signal includes a communication energy transmission signal reflected by the in vivo stimulator and stimulation status information of the in vivo stimulator.

[0021] The present invention adopts the above technical solution, which has the following beneficial effects: According to an exemplary embodiment of the present invention, the coil communication power transfer system for an external programmable device can achieve the sharing of communication coil and power transfer coil by adjusting the resistance value of the bandwidth regulator, which simplifies the system design, thereby reducing the system size and lowering the system cost.

[0022] Furthermore, the coil communication energy transfer system for an external programmable device according to an exemplary embodiment of the present invention can transmit communication information and energy through a coil, and can feed back the transmitted communication information to the controller through a capacitor voltage divider, thereby enabling bidirectional communication.

[0023] Furthermore, the coil communication power transfer system for an external programmer according to an exemplary embodiment of the present invention can make the coil (especially the in-body coil) smaller in size by using the high-frequency band (13MHz) of the coil for communication power transfer, thereby making it easier to implant into the patient's body.

[0024] Furthermore, the coil communication power transmission system for an external programmer according to an exemplary embodiment of the present invention can transmit a larger amount of wireless energy through magnetic field coupling between the external coil and the internal coil, thereby supporting a larger supply of wireless energy, which is more conducive to the high-intensity operation of the internal stimulator and also more conducive to the sustained operation of the internal stimulator. Attached Figure Description

[0025] The exemplary embodiments of the present invention will now be described in more detail with reference to the accompanying drawings. For clarity, the same components in different drawings are shown with the same reference numerals. It should be noted that the drawings are for illustrative purposes only and are not necessarily drawn to scale. In these drawings: Figure 1 This is a schematic diagram of the structure of a coil communication power transfer system for an external programmable device according to an exemplary embodiment of the present invention.

[0026] Figure 2 This is a diagram showing the electrical connection relationship between the fixed capacitor and the variable capacitor of the controller and the resonant matching module of the coil communication power transmission system for an external programmable device according to an exemplary embodiment of the present invention.

[0027] It should be understood that the accompanying drawings are not necessarily drawn to scale, but rather present simplified representations of various features to illustrate the basic principles of the invention. Specific design features disclosed in this invention (including, for example, specific dimensions, orientations, positions, and shapes) will be determined in part by the specific environment in which they will be applied and used.

[0028] Throughout these figures, the same reference numerals denote the same or equivalent parts of the invention. Detailed Implementation

[0029] The following provides a detailed description of the embodiments of the present invention. These embodiments are implemented based on the technical solution of the present invention and provide detailed implementation methods and specific operation processes. However, the scope of protection of the present invention is not limited to the following embodiments.

[0030] Figure 1 This is a schematic diagram of the structure of a coil communication power transfer system for an external programmable device according to an exemplary embodiment of the present invention.

[0031] Reference Figure 1According to an exemplary embodiment of the present invention, a coil communication energy transfer system for an external programmable device can be used to communicate with an implanted in vivo stimulator and transfer energy to the in vivo stimulator. The coil energy transfer system may include: a controller 10, a transceiver 20, a signal processing device 30, and an external coil 40.

[0032] The controller 10 can be electrically connected to the transceiver 20, and the controller 10 can be configured to send control signals to the transceiver 20, including stimulation information and energy transmission information.

[0033] Controller 10 may include a processor or microprocessor (MCU), etc. Optionally, controller 10 may also include a memory. The memory stores stimulus information and energy transfer information. Furthermore, the aforementioned operations / functions of controller 10 can be implemented as computer-readable code / algorithms / software stored on its memory, which may include a non-volatile computer-readable recording medium. A non-volatile computer-readable recording medium is any data storage device capable of storing data that can be read by a processor or microprocessor. Examples of computer-readable recording media include hard disk drives (HDDs), solid-state drives (SSDs), silicon disk drives (SDDs), read-only memory (ROM), random access memory (RAM), CD-ROMs, magnetic tapes, floppy disks, optical data storage devices, etc. The processor or microprocessor can execute the operations / functions of controller 10 by executing computer-readable code / algorithms / software stored on the non-volatile computer-readable recording medium.

[0034] Specifically, the stimulation information may include communication information for communicating with the in vivo stimulator, including but not limited to information such as stimulation amplitude, frequency, pulse width, and period. The energy transfer information may include the energy transfer timing for transmitting energy to the in vivo stimulator.

[0035] The transceiver 20 can be communicatively connected to the signal processing device 30. The transceiver 20 can be configured to receive control signals from the controller 10, convert the received control signals into high-frequency control signals, and send the high-frequency control signals to the signal processing device 30.

[0036] Specifically, the transceiver 20 internally employs a switching amplifier for outputting high-frequency control signals. Based on the output characteristics of the switching amplifier, the output high-frequency control signal is a triangular wave containing multiple harmonics and spurious signals. The purpose of using a switching amplifier is to improve the system's power transfer efficiency. Preferably, the high-frequency control signal is a 13MHz high-frequency control signal.

[0037] In the coil communication energy transfer system for an external programmer according to an exemplary embodiment of the present invention, the external coil and the internal coil communicate and transfer energy using a high-frequency band of 13MHz. This allows for the transmission of greater energy during the transmission of communication information and energy, while also making the coil smaller in size. This enables the internal stimulator to support high-intensity or sustained operation when necessary, and the smaller size also makes it easier to implant into the patient's body.

[0038] The signal processing device 30 can be electrically connected to the external coil 40. The signal processing device 30 can be configured to receive high-frequency control signals from the transceiver 20, process the received high-frequency control signals to obtain processed high-frequency control signals, and send the processed high-frequency control signals to the external coil 40.

[0039] In an exemplary embodiment of the present invention, the signal processing device 30 may include a filter 31, which may be electrically connected to the transceiver 20. The filter 31 may be configured to receive a high-frequency control signal from the transceiver 20 and filter the received high-frequency control signal to generate a filtered signal.

[0040] Specifically, filter 31 can be an EMC filter, which can filter out high-order spurious waves in the frequency domain of the triangular wave emitted by transceiver 20 through the capacitor-inductor resonance characteristic, retaining only the fundamental signal. Preferably, the inductance value of the EMC filter can be approximately 270nH, and the capacitance value can be approximately 680pF.

[0041] In an exemplary embodiment of the present invention, the signal processing device 30 may further include a resonance matching module 32, which may be electrically connected to the filter 31. The resonance matching module 32 may be configured to receive a filtered signal from the filter 31 and perform resonance matching on the received filtered signal to generate a resonance matching signal.

[0042] Figure 2 This is a diagram showing the electrical connection relationship between the fixed capacitor and the variable capacitor of the controller and the resonant matching module of a coil communication power transfer system for an external programmer according to an exemplary embodiment of the present invention. Figure 2As shown, the resonant matching module 32 may include a fixed capacitor 321 and a variable capacitor 322. The fixed capacitor 321 can be electrically connected to the variable capacitor 322, and the variable capacitor 322 can be electrically connected to the controller 10. The capacitance value of the variable capacitor 322 can be adjusted by the controller 10 through the general purpose input / output (GPIO) control line to flexibly adapt to the changes in the impedance of the external coil port under different clinical scenarios (e.g., different human tissue media, coil attachment position deviation, equipment aging, etc.), thereby ensuring optimal transmission performance and maximizing the energy transfer efficiency of the coil.

[0043] In an exemplary embodiment of the present invention, the sum of the capacitance values ​​of the fixed capacitor 321 and the variable capacitor 322 can range from 1 to 200 pF. However, the present invention is not limited thereto; the resonant matching module 32 can be implemented using only the fixed capacitor 321 with a fixed capacitance value, or it can be implemented using only the variable capacitor 322 with an adjustable capacitance value.

[0044] The signal processing device 30 may further include a bandwidth regulator 33, which may be electrically connected to the resonant matching module 32. The bandwidth regulator 33 may be configured to receive a resonant matching signal from the resonant matching module 32 and perform bandwidth adjustment on the received resonant matching signal to generate a processed high-frequency control signal.

[0045] In an exemplary embodiment of the invention, the bandwidth regulator 33 may include an adjustable impedance that may be electrically connected to the controller 10, and the impedance of the adjustable impedance may be adjusted by the controller 10 to adapt to different communication bandwidth requirements by adjusting the impedance value of the adjustable impedance.

[0046] Specifically, the adjustable impedance can be a series resistor. By adjusting the resistance value of the series resistor, the quality factor Q of the coil communication power transfer system for an external programmable device according to an exemplary embodiment of the present invention can be affected. The specific relationship is as follows: Q=ωL / R Where ω is 2π×13MHz, L represents the inductance of the external coil, and R is the sum of the resistance of the series resistor of the bandwidth regulator 33 and the inherent resistance of the external coil.

[0047] As can be seen from the above relationships, the Q value is directly proportional to the inductance of the external coil. Increasing the inductance of the external coil can improve the quality factor Q, that is, it can improve the energy transfer efficiency. On the other hand, the Q value is inversely proportional to the transmission bandwidth. That is, the larger the Q value, the narrower the resonant frequency band of the system and the smaller the transmission bandwidth; the smaller the Q value, the larger the transmission bandwidth.

[0048] The formula for calculating the inductance L of the external coil is: L=μ×N 2 ×A / l Where μ represents the magnetic permeability of the material, N represents the number of turns of the external coil, A represents the cross-sectional area of ​​the external coil, and l is the length of the external coil.

[0049] As can be seen from the above relationship, the value of L is directly proportional to the number of turns and cross-sectional area of ​​the external coil, and inversely proportional to the length of the external coil.

[0050] When using the coil communication power transfer system for an external programmable device according to an exemplary embodiment of the present invention, by combining the actual communication bandwidth with the determination of parameters such as the resistance value of the bandwidth regulator 33 and the number of turns and cross-sectional area of ​​the external coil, the coil communication power transfer system of the present invention can simultaneously meet the communication and power transfer requirements. Preferably, the number of turns of the external coil can be 4 or 5, the inductance value L can be approximately 4uH, and the resistance value R can be between 1 and 2Ω.

[0051] Therefore, the coil communication power transfer system for an external programmable device according to an exemplary embodiment of the present invention can simultaneously achieve communication and power transfer by adjusting the resistance value of the bandwidth regulator 33, while sharing the communication coil and the power transfer coil. This simplifies the system design, thereby reducing the system size and lowering the system cost.

[0052] The external coil 40 can be configured to send a communication energy transfer signal to the internal stimulator via magnetic field coupling in response to receiving a processed high-frequency control signal.

[0053] Specifically, the in vivo stimulator may include an in vivo coil, which may be electrically connected to the in vivo stimulator. An external coil may be communicatively connected to the in vivo coil via magnetic field coupling, thereby transmitting communication signals to the in vivo stimulator.

[0054] An in vivo stimulator can be configured to perform stimulation and store energy based on received communication energy transfer signals. In an exemplary embodiment of the present invention, the communication energy transfer signal may include a communication signal and an energy transfer signal. The communication signal may include, but is not limited to, stimulation signals for the in vivo stimulator, such as signals including information such as stimulation amplitude, frequency, pulse width, and period. The energy transfer signal may include energy transfer signals for the in vivo stimulator, such as signals including information such as energy transfer timing. The in vivo stimulator can be configured to provide energy using the energy transfer signal in the received communication energy transfer signal, perform stimulation based on the communication signal in the received communication energy transfer signal, and store remaining energy. However, the present invention is not limited thereto; the communication signal and the energy transfer signal in the communication energy transfer signal may also be integrated into the same signal.

[0055] The signal processing device 30 may further include a capacitive voltage divider 50, which is electrically connected to the resonant matching module 32 and the transceiver 20 respectively. The capacitive voltage divider 50 may be configured to acquire the resonant matching signal according to the voltage division ratio to generate a positive energy state signal, and send the positive energy state signal to the transceiver 20.

[0056] The transceiver 20 can be further configured to convert the received positive energy status signal from the capacitor divider 50 into a positive feedback signal and transmit the converted positive feedback signal to the controller 10.

[0057] The controller 10 can determine whether the energy transfer information sent by the controller 10 is normal based on the positive feedback signal received from the transceiver 20. For example, it can judge the amplitude and phase stability of the positive energy output, and adjust the energy transfer information accordingly, such as adjusting the energy transfer timing and adjusting the matching parameters, so as to ensure that the energy transfer process is normal and stable.

[0058] Therefore, the coil communication energy transfer system for an external programmer according to an exemplary embodiment of the present invention can acquire control signals (including energy transfer information) issued by the controller through a capacitive voltage divider, and transmit the acquired control signals (including energy transfer information) to the controller to monitor the state of the energy to be transferred to the in vivo stimulator.

[0059] The in vivo stimulator can be further configured to feed back an operating status signal to the in vivo coil, which can send the operating status signal to the external coil 40 via magnetic field coupling. The external coil 40 can be further configured to receive the operating status signal and, in response to the received operating status signal, send an in vivo feedback signal to the bandwidth regulator 33.

[0060] Specifically, the operating status signal may include communication energy transmission signals reflected by the in vivo stimulator and stimulation status information of the in vivo stimulator. The stimulation status information includes, but is not limited to, stimulation intensity, connection status, current, temperature, and other status information of the stimulation electrodes.

[0061] Therefore, according to an exemplary embodiment of the present invention, the coil communication power transmission system for an external programmable device can achieve matching and common porting of the transmitting and receiving front-ends at the link layer by setting the capacitance value of the fixed capacitor 321 of the resonant matching module 32 and adjusting the capacitance value of the variable capacitor 322.

[0062] According to an exemplary embodiment of the present invention, the coil communication power transfer system for an external programmable device can integrate the resonant matching module 32, the capacitive voltage divider 50, and the bandwidth regulator 33 into the same radio frequency front end. On the one hand, the high-frequency control signal emitted from the transceiver 20 directly enters the differential port of the external coil 40 after passing through the aforementioned radio frequency front end; on the other hand, the internal feedback signal emitted from the external coil 40 can also be emitted from the differential port and sent to the bandwidth regulator 33, thereby enabling bidirectional transmission using the same differential port.

[0063] The bandwidth regulator 33 can be further configured to perform bandwidth matching on the received internal feedback signal and generate a feedback regulation signal, and transmit the feedback regulation signal to the resonant matching module 32.

[0064] The resonance matching module 32 can be further configured to perform resonance matching on the received feedback adjustment signal and generate a feedback resonance matching signal.

[0065] The capacitor voltage divider 50 of the signal processing device 30 can be further configured to acquire the feedback resonant matching signal according to the voltage division ratio to generate a reverse communication status signal, and send the reverse communication status signal to the transceiver 20.

[0066] The transceiver 20 can be further configured to convert the received reverse communication status signal from the capacitor divider 50 into a reverse feedback signal and transmit the converted reverse feedback signal to the controller 10.

[0067] The controller 10 can determine whether the stimulation state of the in vivo stimulator is normal based on the received reverse feedback signal from the transceiver 20. For example, it can determine the stimulation intensity, connection status, current, temperature and other stimulation states of the stimulation electrodes, and adjust the stimulation information accordingly to ensure that the communication process is normal and stable.

[0068] Therefore, the coil communication energy transfer system for an external programmable device according to an exemplary embodiment of the present invention can acquire the working status signal reflected by the in vivo stimulator (including the communication energy transfer signal reflected by the in vivo stimulator and the stimulation status information of the in vivo stimulator) through a capacitive voltage divider, and transmit the acquired working status signal (including the communication energy transfer signal reflected by the in vivo stimulator and the stimulation status information of the in vivo stimulator) to the controller to realize the monitoring of the working status of the in vivo stimulator.

[0069] Specifically, the voltage division ratio of the capacitive voltage divider 50 can be achieved using a capacitor with a fixed capacitance value, or it can be achieved using an adjustable capacitor whose capacitance value can be adjusted by the controller 10. Since the communication coil and the energy transfer coil are shared, the voltage division ratio directly affects and balances the energy transfer and communication effects. The voltage division ratio can be comprehensively determined based on the communication and energy transfer effects of the coils, so that the capacitive voltage divider can meet the purpose of collecting resonant matching signals to monitor the energy state, and simultaneously collecting feedback resonant matching signals to monitor the working state of the in vivo stimulator. Preferably, the capacitive voltage division ratio can be set to 1:18.

[0070] Therefore, the coil communication energy transmission system for an external programmable device according to an exemplary embodiment of the present invention can transmit communication information and energy to an internal stimulator through devices such as a controller, transceiver, signal processing device, and external coil, and can feed back the transmitted communication information to the controller through a capacitive voltage divider, thereby realizing bidirectional communication.

[0071] According to an exemplary embodiment of the present invention, the coil communication power transfer system for an external programmable device can achieve communication and power transfer sharing by adjusting the resistance value of the bandwidth regulator, thereby realizing the sharing of communication coil and power transfer coil, making the system architecture simple, thereby reducing the system size and reducing the system cost.

[0072] Furthermore, the coil communication energy transfer system for an external programmable device according to an exemplary embodiment of the present invention can transmit communication information and energy through coils, and can feed back the transmitted communication information to the controller through a capacitor voltage divider, thereby realizing bidirectional communication.

[0073] Furthermore, according to an exemplary embodiment of the present invention, the coil communication power transfer system for an external programmable device can integrate a resonant matching module, a capacitor voltage divider, and a bandwidth regulator into the same radio frequency front end, and directly interface with the external coil. That is, the high-frequency control signal emitted from the transceiver can enter the differential port of the external coil after passing through the bandwidth regulator, and the internal feedback signal emitted from the external coil can also be emitted from the differential port and sent to the bandwidth regulator, thereby realizing "bidirectional transmission on the same port".

[0074] Furthermore, the coil communication energy transfer system for an external programmer according to an exemplary embodiment of the present invention can use high-frequency (13MHz) communication energy transfer between an external coil and an internal coil, so that the coil volume can be smaller during the transmission of communication information and energy, thereby supporting high-intensity or persistent operation of the internal stimulator, and also making it easier to implant into the patient.

[0075] Furthermore, various embodiments of the present invention can be implemented through hardware, firmware, software, or a combination thereof. The hardware can be implemented using one or more of an application-specific integrated circuit (ASIC), a digital signal processor (DSP), a digital signal processing device (DSPD), a programmable logic device (PLD), a field-programmable gate array (FPGA), a general-purpose processor, a controller, a microcontroller, a microprocessor, etc.

[0076] The scope of the invention is also intended to include software or machine-executable instructions (e.g., control systems, applications, firmware, programs, etc.) and non-volatile computer-readable media, the software or machine-executable instructions causing control according to various embodiments to be performed on a device or computer, and the non-volatile computer-readable media being executable on a device or computer storing such software or instructions, etc.

[0077] The various embodiments of the present invention are not an exhaustive list of all possible combinations, but are intended to describe representative aspects of the invention, and the contents described in the various embodiments can be applied independently or in two or more combinations.

[0078] The description of the exemplary embodiments presented above is merely illustrative of the technical solutions of the present invention and is not intended to be exhaustive, nor is it intended to limit the invention to the precise forms described. Obviously, those skilled in the art can make many changes and variations based on the above teachings. The exemplary embodiments were chosen and described to explain the specific principles of the invention and its practical applications, thereby enabling others skilled in the art to understand, implement, and utilize the various exemplary embodiments of the invention and their various alternatives and modifications. The scope of protection of the present invention is intended to be defined by the appended claims and their equivalents.

Claims

1. A coil communication power transfer system for an external programmer, used for communicating with and transferring power to an in vivo stimulator, the coil communication power transfer system comprising a controller, a transceiver, a signal processing device, and an external coil, wherein: The controller is electrically connected to the transceiver, and the controller is configured to send control signals to the transceiver including stimulation information and energy transmission information. The transceiver is communicatively connected to the signal processing device. The transceiver is configured to receive control signals from the controller, convert the received control signals into high-frequency control signals, and send the high-frequency control signals to the signal processing device. The signal processing device is electrically connected to the external coil. The signal processing device is configured to receive a high-frequency control signal from the transceiver, process the received high-frequency control signal to obtain a processed high-frequency control signal, and send the processed high-frequency control signal to the external coil. The external coil is configured to, in response to receiving a processed high-frequency control signal, send a communication energy transmission signal to the internal stimulator via magnetic field coupling, and receive a working status signal fed back by the internal stimulator.

2. The coil communication power transfer system for an external programmable controller according to claim 1, wherein, The signal processing device includes a filter electrically connected to the transceiver. The filter is configured to receive a high-frequency control signal from the transceiver and filter the received high-frequency control signal to generate a filtered signal.

3. The coil communication power transfer system for an external programmable device according to claim 2, wherein, The signal processing device further includes a resonance matching module, which is electrically connected to the filter. The resonance matching module is configured to receive a filtered signal from the filter and perform resonance matching on the received filtered signal to generate a resonance matching signal.

4. The coil communication power transfer system for an external programmable controller according to claim 3, wherein, The signal processing device further includes a bandwidth regulator electrically connected to the resonant matching module. The bandwidth regulator is configured to receive a resonant matching signal from the resonant matching module and to adjust the bandwidth of the received resonant matching signal to generate a processed high-frequency control signal.

5. The coil communication power transfer system for an external programmable controller according to claim 3, wherein, The signal processing device further includes a capacitive voltage divider, which is electrically connected to the resonant matching module and the transceiver, respectively. The capacitive voltage divider is configured to acquire the resonant matching signal according to the voltage division ratio to generate a positive energy state signal, and to send the positive energy state signal to the transceiver.

6. The coil communication power transfer system for an external programmable controller according to claim 5, wherein, The transceiver is further configured to convert the received positive energy state signal from the capacitor divider into a positive feedback signal and transmit the converted positive feedback signal to the controller.

7. The coil communication power transfer system for an external programmable controller according to claim 5, wherein, The voltage division ratio of the capacitor voltage divider is set by the controller.

8. The coil communication power transfer system for an external programmable controller according to claim 4, wherein, The external coil is further configured to send an in vivo feedback signal to the bandwidth regulator in response to a received operating status signal fed back from the in vivo stimulator.

9. The coil communication power transfer system for an external programmable controller according to claim 8, wherein, The bandwidth regulator is further configured to perform bandwidth matching on the received in vivo feedback signal and generate a feedback adjustment signal, and transmit the feedback adjustment signal to the resonant matching module. The resonance matching module is further configured to perform resonance matching on the received feedback adjustment signal and generate a feedback resonance matching signal.

10. The coil communication power transmission system for an external programmable device according to claim 9, wherein the capacitor voltage divider of the signal processing device is further configured to acquire the feedback resonant matching signal according to the voltage division ratio to generate a reverse communication state signal, and to send the reverse communication state signal to the transceiver.

11. The coil communication power transfer system for an external programmable device according to claim 10, wherein, The transceiver is further configured to convert the received reverse communication status signal from the capacitor divider into a reverse feedback signal, and transmit the converted reverse feedback signal to the controller.

12. The coil communication power transfer system for an external programmable device according to claim 3, wherein, The resonant matching module includes a fixed capacitor and a variable capacitor. The fixed capacitor is electrically connected to the variable capacitor, and the variable capacitor is electrically connected to the controller. The capacitance value of the variable capacitor is adjusted by the controller to adapt to the impedance of the external coil port under different environments.

13. The coil communication power transfer system for an external programmable device according to claim 4, wherein, The bandwidth regulator includes an adjustable impedance, which is electrically connected to the controller. The impedance of the adjustable impedance is adjusted by the controller to adapt to different communication bandwidth requirements.

14. The coil communication power transfer system for an external programmable controller according to claim 1, wherein, The operating status signal includes the communication energy transmission signal reflected by the in vivo stimulator and the stimulation status information of the in vivo stimulator.

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