CN215653440U - Artificial cardiac pacemaker - Google Patents
Artificial cardiac pacemaker Download PDFInfo
- Publication number
- CN215653440U CN215653440U CN202121252970.2U CN202121252970U CN215653440U CN 215653440 U CN215653440 U CN 215653440U CN 202121252970 U CN202121252970 U CN 202121252970U CN 215653440 U CN215653440 U CN 215653440U
- Authority
- CN
- China
- Prior art keywords
- circuit
- coil
- cardiac pacemaker
- artificial cardiac
- primary
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Landscapes
- Electrotherapy Devices (AREA)
Abstract
The present invention provides an artificial cardiac pacemaker, wherein the artificial cardiac pacemaker comprises: the device comprises a parameter sending circuit, a communication modulation circuit, a first primary coil, a first secondary coil, a communication demodulation circuit, a parameter receiving circuit, a control circuit and an output circuit. The inside and the outside of the artificial cardiac pacemaker are coupled through a first primary coil and a first secondary coil of the loosely coupled coil. The parameter transmitting circuit is connected to the communication modulating circuit. The communication modulation circuit is connected to the first primary coil, and the communication demodulation circuit is connected to the first secondary coil. The communication demodulation circuit is connected to the parameter receiving circuit, and the output circuit is connected to the parameter receiving circuit. The utility model solves the problem that the working parameters of the installed artificial cardiac pacemaker can only be modified in an operation mode in the prior art, can realize the wireless transmission of digital signals into the artificial cardiac pacemaker, realizes the setting of the working parameters and reduces the pain of patients.
Description
Technical Field
The utility model relates to the technical field of electromagnetic coupling, in particular to an artificial cardiac pacemaker.
Background
Since the swedish cardiac surgeon Ake Senning implanted the world's first V00 cardiac pacemaker to an imminent death patient with a three-degree atrioventricular block in 1958, the embedded artificial cardiac pacemaker has saved the lives of countless patients. An artificial cardiac pacemaker is an electric pulse stimulator with high reliability, which is a medical electronic instrument that connects a certain form of pacing pulse generator with a specially made conducting wire (i.e. a pacing catheter electrode) and sends electric pulses to stimulate the heart through the pacing electrode, so that the heart cannot be excited or the heart with poor conduction stress can be paced.
The artificial cardiac pacemaker is arranged near the atrium of the human body in an operation mode, on one hand, a battery of the artificial cardiac pacemaker can be used for only 8-10 years generally, after the electric quantity of the battery is used up, the effect of pulse electric shock cannot be achieved, and the battery is only replaced in the operation mode; on the other hand, working parameters such as pulse interval time, pulse frequency and pulse intensity during the operation of the artificial cardiac pacemaker must be set before installation, but the parameter setting needs to be changed along with the change of the age, the illness state and the like of a patient, and the artificial cardiac pacemaker can be taken out only in an operation mode to be reset, which brings secondary physical injury to the patient.
Aiming at the problem that the working parameters of the installed artificial cardiac pacemaker can only be modified in an operation mode in the prior art, an effective solution is not provided yet.
SUMMERY OF THE UTILITY MODEL
In view of this, embodiments of the present invention provide an artificial cardiac pacemaker, so as to solve the problem that in the prior art, for an installed artificial cardiac pacemaker, the working parameters of the artificial cardiac pacemaker can only be modified in an operation manner.
Therefore, the embodiment of the utility model provides the following technical scheme:
in a first aspect of the utility model, there is provided an artificial cardiac pacemaker comprising: the device comprises a parameter sending circuit, a communication modulation circuit, a first primary coil, a first secondary coil, a communication demodulation circuit, a parameter receiving circuit, a control circuit and an output circuit;
the inside and the outside of the artificial cardiac pacemaker are coupled through the first primary coil and the first secondary coil of the loosely coupled coil; the parameter transmitting circuit is connected to the communication modulating circuit; the communication modulation circuit is connected to the first primary side coil, and the communication demodulation circuit is connected to the first secondary side coil; the communication demodulation circuit is connected to the parameter receiving circuit, and the output circuit is connected with the parameter receiving circuit;
the parameter sending circuit is used for sending working parameters of the artificial cardiac pacemaker to the communication modulation circuit, and the communication modulation circuit is used for modulating the working parameters of the artificial cardiac pacemaker to obtain a radio frequency modulation signal;
the first primary coil receives the radio frequency modulation signal; the first secondary coil is coupled and induces the radio frequency modulation signal and sends the radio frequency modulation signal to the communication demodulation circuit; the communication demodulation circuit is used for demodulating the radio frequency modulation signal to obtain working parameters of the artificial cardiac pacemaker;
the working parameters of the artificial cardiac pacemaker are transmitted to the heart through the parameter receiving circuit connection, the control circuit and the output circuit through the lead.
Optionally, the artificial cardiac pacemaker further comprises: the energy transfer primary side circuit, the second primary side coil, the second secondary side coil, the energy transfer secondary side circuit, the charging circuit and the battery are arranged;
the energy transmission primary side circuit is connected to the second primary side coil, and the energy transmission secondary side circuit is connected to the second secondary side coil; the energy-transferring secondary side circuit is sequentially connected to the charging circuit and the battery; the inside and the outside of the artificial cardiac pacemaker are coupled through the second primary coil and the second secondary coil of the loosely coupled coil;
the energy transfer primary side circuit is used for converting power supply alternating current into first high-frequency alternating current; the second primary coil is used for receiving the first high-frequency alternating current; and the second secondary side coil is used for coupling and inducing the first high-frequency alternating current and inputting the first high-frequency alternating current into the energy transmission secondary side circuit to obtain charging direct current, and the charging direct current charges the battery through the charging circuit.
Optionally, the artificial cardiac pacemaker further comprises: the self-inductance of the second primary coil and the second secondary coil is respectively greater than the self-inductance of the first primary coil and the self-inductance of the first secondary coil.
Optionally, the artificial cardiac pacemaker further comprises: the first primary coil is a part of the second primary coil, and the first secondary coil is a part of the second secondary coil.
Optionally, the energy transfer primary circuit includes: the power frequency rectifying circuit, the filter circuit and the high-frequency inverter circuit are connected in sequence; the power supply alternating current passes through the power frequency rectifying circuit, the filter circuit and the high-frequency inverter circuit to obtain first high-frequency alternating current;
the energy-transfer secondary side circuit comprises: a high-frequency rectification circuit; the high-frequency rectification circuit is connected with the second secondary side coil, the first high-frequency alternating current is connected through the second secondary side coil, and the high-frequency rectification circuit obtains direct current.
Optionally, the energy transfer primary circuit further includes: the input end of the primary side resonance circuit is connected with the high-frequency inverter circuit, the output end of the primary side resonance circuit is connected with the second primary side coil, and the primary side resonance circuit is used for supplementing reactive components of the first high-frequency alternating current to obtain a second high-frequency alternating current;
the energy-transfer secondary side circuit further comprises: a secondary side resonant circuit; the input end of the secondary side resonance circuit is connected with the second secondary side coil, and the output end of the secondary side resonance circuit is connected with the high-frequency rectification circuit; and the secondary resonant circuit is used for supplementing reactive components of the second high-frequency alternating current to obtain the first high-frequency alternating current.
Optionally, the communication modulation circuit includes: the system comprises a carrier modulation circuit and a primary side coupling circuit;
the carrier modulation circuit is connected to the primary side coupling circuit; the carrier modulation circuit is used for carrying out carrier modulation on working parameters of the artificial cardiac pacemaker; the primary side coupling circuit is used for coupling the signal subjected to carrier modulation with the second high-frequency current signal to obtain the radio frequency modulation signal;
the communication demodulation circuit includes: a secondary side decoupling circuit and a carrier demodulation circuit;
the secondary side decoupling circuit is connected to the carrier demodulation circuit; the secondary side decoupling circuit is used for decoupling the radio frequency modulation signal to obtain the carrier modulation signal; the carrier demodulation circuit is used for demodulating the carrier modulation signal to obtain the working parameters of the artificial cardiac pacemaker.
Optionally, the artificial cardiac pacemaker further comprises: a timer;
the controller is connected to the timer; the timer is connected to the output circuit; the controller is used for controlling the working parameters of the artificial cardiac pacemaker to be transmitted to the heart according to the timing signals output by the timer.
One or more technical schemes provided in the embodiment of the utility model can realize the technical effect of wirelessly transmitting the digital signal to the interior of the artificial cardiac pacemaker and realizing the setting of the working parameters.
The embodiment of the utility model provides an artificial cardiac pacemaker, wherein the artificial cardiac pacemaker comprises: the device comprises a parameter sending circuit, a communication modulation circuit, a first primary coil, a first secondary coil, a communication demodulation circuit, a parameter receiving circuit, a control circuit and an output circuit. The inside and the outside of the artificial cardiac pacemaker are coupled through a first primary coil and a first secondary coil of the loosely coupled coil. The parameter transmitting circuit is connected to the communication modulating circuit. The communication modulation circuit is connected to the first primary coil, and the communication demodulation circuit is connected to the first secondary coil. The communication demodulation circuit is connected to the parameter receiving circuit, and the output circuit is connected to the parameter receiving circuit. The parameter sending circuit is used for sending working parameters of the artificial cardiac pacemaker to the communication modulation circuit, and the communication modulation circuit is used for modulating the working parameters of the artificial cardiac pacemaker to obtain a radio frequency modulation signal. The first primary coil receives a radio frequency modulated signal. The first secondary coil couples the induced RF modulated signal and transmits the RF modulated signal to the communication demodulation circuit. The communication demodulation circuit is used for demodulating the radio frequency modulation signal to obtain the working parameters of the artificial cardiac pacemaker. The working parameters of the artificial cardiac pacemaker are transmitted to the heart through the lead by the parameter receiving circuit connection, the control circuit and the output circuit. The embodiment of the utility model solves the problem that the working parameters of the installed artificial cardiac pacemaker can only be modified in an operation mode in the prior art, can realize the wireless transmission of digital signals into the artificial cardiac pacemaker, realizes the setting of the working parameters and reduces the pain of patients.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic diagram of a circuit configuration for wirelessly transmitting operating parameters of an artificial cardiac pacemaker according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of an electrical configuration of an artificial cardiac pacemaker according to an embodiment of the present invention;
fig. 3 is a schematic diagram showing the structure of the wireless transmission circuit of the artificial cardiac pacemaker according to the embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the present disclosure, the word "exemplary" is used to mean "serving as an example, instance, or illustration. Any embodiment described herein as "exemplary" is not necessarily to be construed as preferred or advantageous over other embodiments. The following description is presented to enable any person skilled in the art to make and use the utility model. In the following description, details are set forth for the purpose of explanation. It will be apparent to one of ordinary skill in the art that the present invention may be practiced without these specific details. In other instances, well-known structures and processes are not shown in detail to avoid obscuring the description of the utility model with unnecessary detail. Thus, the present invention is not intended to be limited to the embodiments shown, but is to be accorded the widest scope consistent with the principles and features disclosed herein.
In addition, the technical features involved in the different embodiments of the present invention described below may be combined with each other as long as they do not conflict with each other.
In this embodiment, an embodiment of an artificial cardiac pacemaker is provided, and fig. 1 is a schematic diagram illustrating a circuit structure of an artificial cardiac pacemaker according to an embodiment of the present invention for wirelessly transmitting operating parameters, as shown in fig. 1, the artificial cardiac pacemaker includes: the device comprises a parameter sending circuit, a communication modulation circuit, a first primary coil, a first secondary coil, a communication demodulation circuit, a parameter receiving circuit, a control circuit and an output circuit. The inside and the outside of the artificial cardiac pacemaker are coupled through a first primary coil and a first secondary coil of the loosely coupled coil. The parameter transmitting circuit is connected to the communication modulating circuit. The communication modulation circuit is connected to the first primary coil, and the communication demodulation circuit is connected to the first secondary coil. The communication demodulation circuit is connected to the parameter receiving circuit, and the output circuit is connected with the parameter receiving circuit. In particular, an artificial cardiac pacemaker includes two parts, a first part being an internal pacemaker and a second part being an external pacemaker. The internal pacemaker is installed inside a human body, and the connection with the external pacemaker is realized through a loose coupling coil, so that the wireless transmission of working parameters is realized. The secondary coil of the loose coupling coil is arranged in the internal pacemaker, the primary coil of the loose coupling coil is arranged in the external pacemaker, and the primary coil and the secondary coil are wirelessly interconnected in a magnetic field coupling mode.
The parameter sending circuit is used for sending the working parameters of the artificial cardiac pacemaker to the communication modulation circuit, and the communication modulation circuit is used for modulating the working parameters of the artificial cardiac pacemaker to obtain a radio frequency modulation signal. In particular, the operating parameters may include pulse interval time, pulse frequency, and pulse intensity. The parameter sending circuit carries out digital conversion on working parameters such as pulse interval time, pulse frequency and pulse intensity required by the work of the artificial cardiac pacemaker, each parameter is converted into a binary code, all the binary codes are packed into an array according to a fixed sequence by the parameter sending circuit to form a digital signal which can be sent to the outside, the digital signal is transmitted to the communication modulation circuit, and the communication modulation circuit carries out carrier modulation on a digital instruction to generate a radio frequency modulation signal. And the radio frequency modulation signal generated by the communication modulation circuit is input into a first primary coil of the loosely coupled coil.
The first primary coil receives the radio frequency modulated signal. The first secondary coil is coupled and inducts the radio frequency modulation signal and sends the radio frequency modulation signal to the communication demodulation circuit. The communication demodulation circuit is used for demodulating the radio frequency modulation signal to obtain the working parameters of the artificial cardiac pacemaker. Specifically, the radio frequency signal is restored to a digital signal by the communication demodulation circuit, and the digital signal is restored to the operating parameter by the parameter receiving circuit.
The working parameters of the artificial cardiac pacemaker are transmitted to the heart through the lead by the parameter receiving circuit connection, the control circuit and the output circuit. Specifically, wireless transmission of working parameters is realized through the transmission of the working parameters, and the external pacemaker wirelessly transmits the working parameters to the internal pacemaker through the magnetic coupling of the loosely coupled coil. For example, the pulse intensity is input to an output circuit via a control circuit, and the output circuit outputs a current of a certain pulse intensity, thereby realizing cardiac pacing.
Because the installed artificial cardiac pacemaker in the prior art can only modify the working parameters of the artificial cardiac pacemaker in an operation mode, the embodiment of the utility model adopts the coupling coil to realize the wireless transmission of the working parameters, which is different from the operation required for modifying the working parameters of the installed artificial cardiac pacemaker in the prior art and brings pain to a patient. The problem that the working parameters of the installed artificial cardiac pacemaker can only be modified in an operation mode in the prior art is solved, and then the working parameters of the artificial cardiac pacemaker can be modified in a non-invasive condition according to the age, the physical state and the actual condition of the disease development of a patient in the service life cycle of the artificial cardiac pacemaker so as to exert the effect of the artificial cardiac pacemaker to the maximum extent.
To illustrate that the artificial cardiac pacemaker may also be charged wirelessly, in some alternative embodiments, as shown in fig. 2, the artificial cardiac pacemaker further comprises: the energy transfer primary side circuit, the second primary side coil, the second secondary side coil, the energy transfer secondary side circuit, the charging circuit and the battery. The energy transfer primary side circuit is connected to the second primary side coil, and the energy transfer secondary side circuit is connected to the second secondary side coil. The energy-transferring secondary side circuit is sequentially connected to the charging circuit and the battery. The inner part and the outer part of the artificial cardiac pacemaker are coupled through a second primary coil and a second secondary coil of the loosely coupled coil. Specifically, the power frequency alternating current refers to the alternating current with the frequency of 50 Hz. When wireless charging is carried out, the input power frequency voltage is converted into high-frequency alternating-current voltage through the energy transfer primary side circuit. The high-frequency alternating voltage generated by the energy transfer primary side circuit is input to a second primary side coil of the loosely coupled coil. Through the effect of coil, input high frequency alternating current to biography ability secondary side circuit, convert high frequency alternating current to the direct current that charges. The direct current generated by the energy transfer secondary side circuit is input into the charging circuit and then converted into charging voltage to charge the battery of the internal pacemaker. When the battery is in insufficient voltage, the battery is charged in a constant current mode, and when the voltage of the battery is charged to the platform voltage, the charger enters a constant voltage state to charge the battery at a constant voltage until the battery is fully charged. It should be understood by those skilled in the art that the power input to the primary power transmission circuit is a power frequency ac power, and other types of power are within the scope of the present invention. Such as direct current power and 60Hz alternating current power.
The energy transfer primary side circuit is used for converting power supply alternating current into first high-frequency alternating current. The second primary coil is used for receiving the first high-frequency alternating current. The second secondary winding is coupled with the first high-frequency alternating current and inputs the first high-frequency alternating current into the energy transmission secondary winding to obtain charging direct current, and the charging direct current charges the battery through the charging circuit. By wireless mode, the electric energy stored in the battery in the internal pacemaker is supplemented, and the service life of the artificial cardiac pacemaker is prolonged
To illustrate the first primary coil, the first secondary coil, the second primary coil, and the second secondary coil, in some alternative embodiments, the self-inductance of the second primary coil and the second secondary coil is greater than the self-inductance of the first primary coil and the first secondary coil, respectively. Specifically, the artificial cardiac pacemaker is wirelessly transmitted by high-frequency alternating current during charging, but the transmission mode is characterized by narrow band and high power, so that the second primary coil and the second secondary coil are required to have larger self-inductance. When the working parameters of the inner pacemaker in the artificial cardiac pacemaker are modified, radio frequency modulation signals are used for wireless transmission, however, the transmission mode has the characteristics of broadband and low power, and therefore the first primary coil and the first secondary coil are required to have smaller self inductance. Based on this, the self-inductance of the second primary coil and the second secondary coil is respectively larger than the self-inductance of the first primary coil and the first secondary coil.
To further illustrate the first primary coil, the first secondary coil, the second primary coil, and the second secondary coil, in some alternative embodiments, the first primary coil is part of the second primary coil and the first secondary coil is part of the second secondary coil. Specifically, when the primary coil of the loosely coupled coil is wound, the primary coil needs to be led out from the middle of the coil, a part of windings of the primary coil form a first primary coil as a sending coil of the radio frequency modulation signal, and the whole section of the primary coil forms a second primary coil as a sending coil of the high-frequency alternating current. Therefore, the first primary coil has smaller self-inductance, the second primary coil has larger self-inductance, and meanwhile, the self-inductance of the second primary coil is larger than that of the regional primary coil. And the first secondary winding and the second secondary winding correspond to the first primary winding and the second primary winding respectively.
To illustrate the loosely coupled coil, in some alternative embodiments, the secondary winding of the loosely coupled coil is spatially close to the primary coil of the loosely coupled coil in an internal pacemaker of the artificial cardiac pacemaker, the primary coil and the secondary coil of the loosely coupled coil are coupled by a magnetic field, and the combined high frequency ac and rf modulated signal is coupled by the magnetic field between the loosely coupled coils such that the high frequency ac and rf modulated signal can be transferred from the primary coil to the secondary coil. The high-frequency alternating current is input into an energy-transferring secondary side circuit through a secondary side coil, and the high-frequency alternating current is converted into direct current; meanwhile, the radio frequency modulation signal is input to the communication demodulation circuit through the secondary coil, a digital signal is generated through demodulation of the communication demodulation circuit, and the digital signal is transmitted to the parameter receiving circuit. The turn ratio of a first primary coil used for transmitting radio frequency modulation signals to a second primary coil used for transmitting high-frequency alternating current is smaller than 1, and the number of coils in the first primary coil is 1-2 in order to obtain a better transmission effect. And the first secondary winding and the second secondary winding correspond to the first primary winding and the second primary winding.
To illustrate the primary and secondary energy transfer circuits, in some alternative embodiments, as shown in fig. 3, the primary energy transfer circuit includes: the power frequency rectifying circuit, the filter circuit and the high-frequency inverter circuit are connected in sequence. The power supply alternating current passes through the power frequency rectifying circuit, the filter circuit and the high-frequency inverter circuit to obtain first high-frequency alternating current. Specifically, the energy transmission primary circuit comprises a power frequency rectifying circuit, a filter circuit and a high-frequency inverter circuit. The power frequency alternating current is input into the power frequency rectifying circuit to generate a first direct current. After the first direct current is input to the filter circuit, high-frequency clutter in the first direct current is filtered by the filter, a second relatively pure direct current can be obtained, and the second direct current is inverted into first high-frequency alternating current through the high-frequency inverter circuit.
The energy-transfer secondary side circuit comprises: a high-frequency rectification circuit; the high-frequency rectification circuit is connected with the second secondary side coil, the first high-frequency alternating current is connected through the second secondary side coil, and the high-frequency rectification circuit obtains direct current. Specifically, the first high-frequency alternating current is input to the second primary coil, the first high-frequency alternating current is induced at two ends of the second secondary coil in a magnetic induction mode, and the first high-frequency alternating current is input to the high-frequency rectifying circuit and is converted into charging direct current by the high-frequency rectifying circuit, so that wireless transmission of electric energy is realized.
To further illustrate the energy transfer primary circuit and the energy transfer secondary circuit, in some alternative embodiments, the energy transfer primary circuit further comprises: and the input end of the primary side resonance circuit is connected with the high-frequency inverter circuit, the output end of the primary side resonance circuit is connected with the second primary side coil, and the primary side resonance circuit is used for supplementing the reactive component of the first high-frequency alternating current to obtain a second high-frequency alternating current. The energy transfer secondary side circuit further comprises: and a secondary side resonant circuit. The input end of the secondary resonant circuit is connected with the second secondary coil, and the output end of the secondary resonant circuit is connected with the high-frequency rectifying circuit. The secondary side resonant circuit is used for supplementing reactive components of the second high-frequency alternating current to obtain the first high-frequency alternating current.
In some optional embodiments, the communication modulation circuit comprises: a carrier modulation circuit and a primary side coupling circuit. The carrier modulation circuit is connected to the primary side coupling circuit; the carrier modulation circuit is used for carrying out carrier modulation on the working parameters of the artificial cardiac pacemaker. And the primary side coupling circuit is used for coupling the signal subjected to carrier modulation with the second high-frequency alternating current to obtain a radio frequency modulation signal. Specifically, after being input to a carrier modulation circuit, a digital signal is modulated into a carrier modulation signal, the carrier modulation signal is input to a primary side coupling circuit, the carrier modulation signal is coupled with a second high-frequency alternating current under the action of a capacitance voltage division circuit, an LC bypass circuit and other circuits in the primary side coupling circuit to obtain a radio frequency modulation signal, and finally the radio frequency modulation signal is input to a first primary side coil and used for transmitting the radio frequency modulation signal.
The communication demodulation circuit includes: secondary decoupling circuit and carrier demodulation circuit. The secondary side decoupling circuit is connected to the carrier demodulation circuit. The secondary side decoupling circuit is used for decoupling the radio frequency modulation signal to obtain a carrier modulation signal. The carrier demodulation circuit is used for demodulating the carrier modulation signal to obtain the working parameters of the artificial cardiac pacemaker. Specifically, radio frequency modulation signals are induced at two ends of the first secondary coil in a magnetic induction mode, the radio frequency modulation signals are input into the secondary decoupling circuit, and the carrier modulation signals are coupled with the second high-frequency alternating current under the action of a capacitance voltage division circuit, an LC bypass circuit and other circuits in the secondary decoupling circuit to obtain the radio frequency modulation signals. After the radio frequency modulation signal is input to the carrier demodulation circuit for demodulation, the digital signal is restored through the action of the carrier demodulation circuit, and the wireless transmission of the digital signal is realized.
In some optional embodiments, the artificial cardiac pacemaker further comprises: a timer. The controller is connected to the timer. The timer is connected to the output circuit. The controller is used for controlling the working parameters of the artificial cardiac pacemaker to be transmitted to the heart according to the timing signals output by the timer. Specifically, a battery of an internal pacemaker of the artificial cardiac pacemaker can supply power to the control circuit, the timer and the output circuit, the parameter receiving circuit inputs working parameters such as pulse interval time, pulse frequency and pulse intensity of the artificial cardiac pacemaker to the control circuit, the control circuit inputs the pulse interval time and the pulse frequency to the timer and inputs the pulse intensity parameters to the output circuit, and the output circuit inputs pulse current with set intensity to the heart through a lead according to a timing signal generated by the timer, so that the pacing of the heart is realized.
To further illustrate the internal pacemaker and the external pacemaker of the artificial cardiac pacemaker, in some alternative embodiments the artificial cardiac pacemaker comprises two parts, an internal pacemaker and an external pacemaker. The internal pacemaker is coupled with the external pacemaker through a primary coil and a secondary coil of a loosely coupled coil, the primary coil is arranged on the external pacemaker, and the secondary coil is arranged on the internal pacemaker. The external pacemaker also comprises a parameter transmitting circuit, a communication modulation circuit and an energy transmission primary circuit, and the internal pacemaker also comprises a communication demodulation circuit, a parameter receiving circuit, an energy transmission secondary circuit, a charging circuit, a battery, a controller, a timer and an output circuit. The electric energy and the working parameters input into the external pacemaker can be wirelessly transmitted to the internal pacemaker through the circuit structure under the action of the coupling coil. On one hand, the electric energy stored in the battery of the inner pacemaker can be supplemented, and the service life of the artificial cardiac pacemaker is prolonged; on the other hand, in the service life cycle of the cardiac pacemaker, the working parameters of the artificial cardiac pacemaker can be corrected under the non-invasive condition according to the age, the physical state and the actual condition of the disease development of the patient, so as to exert the effect of the pacemaker to the maximum extent.
Although the embodiments of the present invention have been described in conjunction with the accompanying drawings, those skilled in the art may make various modifications and variations without departing from the spirit and scope of the utility model, and such modifications and variations fall within the scope defined by the appended claims.
Claims (8)
1. An artificial cardiac pacemaker, comprising: the device comprises a parameter sending circuit, a communication modulation circuit, a first primary coil, a first secondary coil, a communication demodulation circuit, a parameter receiving circuit, a control circuit and an output circuit;
the inside and the outside of the artificial cardiac pacemaker are coupled through the first primary coil and the first secondary coil of the loosely coupled coil; the parameter transmitting circuit is connected to the communication modulating circuit; the communication modulation circuit is connected to the first primary side coil, and the communication demodulation circuit is connected to the first secondary side coil; the communication demodulation circuit is connected to the parameter receiving circuit, and the output circuit is connected with the parameter receiving circuit;
the parameter sending circuit is used for sending working parameters of the artificial cardiac pacemaker to the communication modulation circuit, and the communication modulation circuit is used for modulating the working parameters of the artificial cardiac pacemaker to obtain a radio frequency modulation signal;
the first primary coil receives the radio frequency modulation signal; the first secondary coil is coupled and induces the radio frequency modulation signal and sends the radio frequency modulation signal to the communication demodulation circuit; the communication demodulation circuit is used for demodulating the radio frequency modulation signal to obtain working parameters of the artificial cardiac pacemaker;
the working parameters of the artificial cardiac pacemaker are transmitted to the heart through the parameter receiving circuit connection, the control circuit and the output circuit through the lead.
2. The artificial cardiac pacemaker as described in claim 1, further comprising: the energy transfer primary side circuit, the second primary side coil, the second secondary side coil, the energy transfer secondary side circuit, the charging circuit and the battery are arranged;
the energy transmission primary side circuit is connected to the second primary side coil, and the energy transmission secondary side circuit is connected to the second secondary side coil; the energy-transferring secondary side circuit is sequentially connected to the charging circuit and the battery; the inside and the outside of the artificial cardiac pacemaker are coupled through the second primary coil and the second secondary coil of the loosely coupled coil;
the energy transfer primary side circuit is used for converting power supply alternating current into first high-frequency alternating current; the second primary coil is used for receiving the first high-frequency alternating current; and the second secondary side coil is used for coupling and inducing the first high-frequency alternating current and inputting the first high-frequency alternating current into the energy transmission secondary side circuit to obtain charging direct current, and the charging direct current charges the battery through the charging circuit.
3. The artificial cardiac pacemaker as described in claim 2, wherein the self-inductances of said second primary coil and said second secondary coil are greater than the self-inductances of said first primary coil and said first secondary coil, respectively.
4. The artificial cardiac pacemaker as described in claim 2 or claim 3, wherein said first primary coil is part of said second primary coil and said first secondary coil is part of said second secondary coil.
5. The artificial cardiac pacemaker as described in claim 2, wherein said primary energy transfer circuit comprises: the power frequency rectifying circuit, the filter circuit and the high-frequency inverter circuit are connected in sequence; the power supply alternating current passes through the power frequency rectifying circuit, the filter circuit and the high-frequency inverter circuit to obtain first high-frequency alternating current;
the energy-transfer secondary side circuit comprises: a high-frequency rectification circuit; the high-frequency rectification circuit is connected with the second secondary side coil, the first high-frequency alternating current is connected through the second secondary side coil, and the high-frequency rectification circuit obtains direct current.
6. The artificial cardiac pacemaker as described in claim 5, wherein said primary energy transfer circuit further comprises: the input end of the primary side resonance circuit is connected with the high-frequency inverter circuit, the output end of the primary side resonance circuit is connected with the second primary side coil, and the primary side resonance circuit is used for supplementing reactive components of the first high-frequency alternating current to obtain a second high-frequency alternating current;
the energy-transfer secondary side circuit further comprises: a secondary side resonant circuit; the input end of the secondary side resonance circuit is connected with the second secondary side coil, and the output end of the secondary side resonance circuit is connected with the high-frequency rectification circuit; and the secondary resonant circuit is used for supplementing reactive components of the second high-frequency alternating current to obtain the first high-frequency alternating current.
7. The artificial cardiac pacemaker as described in claim 6, wherein said communication modulation circuitry comprises: the system comprises a carrier modulation circuit and a primary side coupling circuit;
the carrier modulation circuit is connected to the primary side coupling circuit; the carrier modulation circuit is used for carrying out carrier modulation on working parameters of the artificial cardiac pacemaker; the primary side coupling circuit is used for coupling the signal subjected to carrier modulation with the second high-frequency current signal to obtain the radio frequency modulation signal;
the communication demodulation circuit includes: a secondary side decoupling circuit and a carrier demodulation circuit;
the secondary side decoupling circuit is connected to the carrier demodulation circuit; the secondary side decoupling circuit is used for decoupling the radio frequency modulation signal to obtain the carrier modulation signal; the carrier demodulation circuit is used for demodulating the carrier modulation signal to obtain the working parameters of the artificial cardiac pacemaker.
8. The artificial cardiac pacemaker as described in claim 1, further comprising: a timer;
the controller is connected to the timer; the timer is connected to the output circuit; the controller is used for controlling the working parameters of the artificial cardiac pacemaker to be transmitted to the heart according to the timing signals output by the timer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121252970.2U CN215653440U (en) | 2021-06-04 | 2021-06-04 | Artificial cardiac pacemaker |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121252970.2U CN215653440U (en) | 2021-06-04 | 2021-06-04 | Artificial cardiac pacemaker |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215653440U true CN215653440U (en) | 2022-01-28 |
Family
ID=79974109
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121252970.2U Active CN215653440U (en) | 2021-06-04 | 2021-06-04 | Artificial cardiac pacemaker |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215653440U (en) |
-
2021
- 2021-06-04 CN CN202121252970.2U patent/CN215653440U/en active Active
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN100386916C (en) | Wireless charging device through skin in use for implantation type medical treatment instrument | |
| CN103560572B (en) | A kind of implantable cardiac pacemaker magnetic coupling resonance wireless charging device | |
| CN101612451B (en) | Chargeable implant cardiac pacemaker device and charging method thereof | |
| CN103595144B (en) | A kind of implantable left ventricular assist system of wireless power transmission | |
| EP3065819B1 (en) | Orientation and placement of inductive components to minimize noise coupling to a communication coil in an implantable medical device | |
| CN101980412B (en) | Percutaneous closed-loop control charging device for implantation type medical treatment instrument | |
| CN102832722A (en) | Implanted self-adaptive wireless source transmission method and system | |
| CN108233550A (en) | A kind of multistage multi-panel magnetic resonance pacemaker wireless charging system | |
| CN109603007A (en) | A kind of implantation type electric stimulation device based on magnetic coupling resonance formula wireless energy transfer | |
| CN114768092A (en) | Capacitive coupling energy transfer nerve electrical stimulation system and in-vivo nerve electrical stimulator and in-vitro energy controller thereof | |
| CN103683438B (en) | Be applied to the power adjustable formula wireless charging device of Implanted cardiac pacemaker | |
| US20190070421A1 (en) | Supercapacitor-Powered Charger and Implantable Medical Device | |
| CN201437021U (en) | Chargeable implanted cardiac pacemaker system | |
| CN106451626B (en) | Wireless charging device of implanted electronic stimulator | |
| CN102179003A (en) | Implantable medical device | |
| CN215653440U (en) | Artificial cardiac pacemaker | |
| CN203617791U (en) | Implantable left-ventricle auxiliary system in wireless electric energy transmission | |
| CN112564247A (en) | Implantable device | |
| CN113209479A (en) | Artificial cardiac pacemaker | |
| CN113117229A (en) | Circuit for pulse generator, pulse generator and deep brain electrical stimulation system | |
| CN110380519A (en) | A kind of wireless charging system and its charging method of pacemaker | |
| CN210041442U (en) | Wireless charging system of cardiac pacemaker | |
| CN114225218A (en) | Wireless energy transmission control system of implantable cardiac pacemaker | |
| CN113300478A (en) | Anti-deviation wireless power transmission system for implantable medical equipment | |
| CN103107606A (en) | Implanting type integrated magnetic coupling resonator wireless energy transfer method |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |