CN101612451B - Chargeable implant cardiac pacemaker device and charging method thereof - Google Patents

Abstract

The invention discloses a chargeable implant cardiac pacemaker device, comprising a cardiac pacemaker implanted into human body, an ultrasonic generator outside the human body and an external program controllable instrument; wherein the ultrasonic generator is in signal connection with the cardiac pacemaker by ultrasonic wave, and the external program controllable instrument is in signal connection with the cardiac pacemaker by radio frequency signal. The invention also provides a charging method of the chargeable implant cardiac pacemaker device. The chargeable implant cardiac pacemaker device adopts the ultrasonic wave for energy transmission, stores the energy in an energy storage element of the pacemaker and realizes energy compensation on a power supply of the implant cardiac pacemaker.

Description

Chargeable implant cardiac pacemaker device and charging method thereof

Technical field

The present invention relates to the energy supplement technology of active implantation medical apparatus and instruments power supply, be specifically related to a kind of chargeable implant cardiac pacemaker device and charging method thereof.

Background technology

Cardiac pacemaker is a kind ofly can send the electric pulse stimulation heart, makes excitement can not or conduct bad cardiac stress and the medical electronics of pace-making is mainly used in the treatment bradyarrhythmia, as: sinus node dysfunction and atrioventricular block.At present, artificial cardiac pacemaker can be divided into two kinds of external temporary cardiac pacing type and embedded types, and the former is mainly used in provides the first aid temporary cardiac pacing, and the latter mainly is for the long-term property implanted pacing therapy.

The power supply of present implant cardiac pacemaker both domestic and external is disposable use battery, can not carry out energy supplement, when battery consumption during about 85% electric weight, just can not guarantee the operate as normal of pacemaker, must in time change, implant new pacemaker again.Therefore, the greatest drawback of implant cardiac pacemaker existence at present is that battery life is limited, the final replacing pacemaker of can need having an operation because of battery depletion, this has not only increased new physiology misery, operation risk and financial burden to the patient, and has restricted the use value of implant cardiac pacemaker.

Summary of the invention

The present invention is in order to overcome the deficiency that above prior art exists, a kind of chargeable implant cardiac pacemaker device is provided, the present invention adopts ultrasonic signal to carry out energy delivery, and store energy in the energy-storage travelling wave tube of pacemaker, realize the implant cardiac pacemaker power supply is carried out energy supplement.

Another object of the present invention is to provide a kind of charging method of chargeable implant cardiac pacemaker device.

Purpose of the present invention realizes by following technical scheme: this chargeable implant cardiac pacemaker device, it is characterized in that: comprise cardiac pacemaker, outer supersonic generator and the outside program control instrument of human body in the implant into body, supersonic generator is connected with the cardiac pacemaker signal by ultrasonic signal, and outside program control instrument is connected with the cardiac pacemaker signal by radio frequency signal;

Described supersonic generator comprises generator body and the ultrasonic emitting probe that links to each other with the generator body;

Described outside program control instrument comprises external program control circuit and external wireless radio-frequency communication module, display, button, the printout module of joining with the external program control circuit;

Described cardiac pacemaker comprises internal wireless radio-frequency communication module, microprocessor, pace-making output control circuit, bold and unrestrained and deadlock holding circuit, P or R ripple detection circuit, perception control circuit, power module, defibrillation protection and EMI filter circuit and pacing electrode, and described power module comprises that ultrasonic signal receives modular converter, power supply conditioning module, energy-storage travelling wave tube and power supply monitoring control module;

Described microprocessor connects internal wireless radio-frequency communication module, pace-making output control circuit, bold and unrestrained and deadlock holding circuit, P or R ripple detection circuit, perception control circuit, bold and unrestrainedly be connected the pace-making output control circuit with the deadlock holding circuit, the perception control circuit connects P or R ripple detection circuit, and the defibrillation protection is connected pace-making output control circuit, P or R ripple detection circuit, pacing electrode with the EMI filter circuit;

Described ultrasonic signal receives modular converter and connects the power supply conditioning module, the power supply conditioning module connects the power supply monitoring control module, the power supply monitoring control module connects microprocessor, and the power supply conditioning module connects energy-storage travelling wave tube, and energy-storage travelling wave tube provides electric energy for cardiac pacemaker.

Described power supply monitoring control module comprises interconnective power supply energy consumption monitoring indicating circuit and charging control circuit.

As a kind of preferred version, described energy-storage travelling wave tube is a rechargeable battery.

As a kind of preferred version, described ultrasonic signal receives modular converter and adopts the high-performance piezoelectric ceramic sheet to realize the reception and the conversion of this ultrasonic signal.

As a kind of preferred version, send mutually between described external wireless radio-frequency communication module and the internal wireless radio-frequency communication module and the reception radio frequency signal, cardiac pacemaker carries out exchanges data by internal wireless radio-frequency communication module and external wireless radio-frequency communication module.

As a kind of preferred version, the shell of described cardiac pacemaker is a titanium alloy casing, has good biocompatibility, adopts the two halves elliptic design, and main seamed edge is slick great circle arc, does not have sharp-pointed corner angle, can reduce the stimulation of titanium alloy casing to human body.

As a kind of preferred version, described pace-making output control circuit comprises pacemaker impulse generation circuit, pacemaker impulse control circuit, pacemaker impulse shaping circuit, pulse multiplication of voltage output circuit and pace-making energy compensating circuit, under the control of microprocessor, the pace-making output control circuit is provided the pacing signal of certain frequency, pulse amplitude and pulsewidth within a certain period of time, cardiac stimulus work.

The charging method of above-mentioned chargeable implant cardiac pacemaker device is characterized in that:

Described supersonic generator produces and the emission ultrasonic signal, the power module received ultrasonic signal of the cardiac pacemaker in the implant into body, be converted into the signal of telecommunication of certain voltage simultaneously, and electric weight is stored in the energy-storage travelling wave tube of power module, this energy-storage travelling wave tube provides electric energy for cardiac pacemaker, thereby realize the energy supplement to cardiac pacemaker, the electric quantity consumption of energy-storage travelling wave tube and charge condition obtain by the radio frequency signal of outside program control instrument to cardiac pacemaker;

Described supersonic generator comprises generator body and the ultrasonic emitting probe that links to each other with the generator body, is used for producing and the emission ultrasonic signal, and this ultrasonic signal penetrates human body skin and transmits energy to described cardiac pacemaker;

Described outside program control instrument carries out the inquiry of pacing parameter inquiry, programming and power supply energy consumption information and charge information to cardiac pacemaker by external wireless radio-frequency communication module;

Described ultrasonic signal receives the signal of telecommunication that modular converter receives the resonance ultrasonic signal of described supersonic generator generation and converts certain voltage to, after the power supply conditioning module with electrical power storage in energy-storage travelling wave tube, energy-storage travelling wave tube provides electric energy for cardiac pacemaker; Described power supply monitoring control module comprises interconnective power supply energy consumption monitoring indicating circuit and charging control circuit, is used for the electric weight of energy-storage travelling wave tube is monitored and charging process is controlled; The energy expenditure information and the charge information of energy-storage travelling wave tube are provided to outside program control instrument by internal wireless radio-frequency communication module under the control of microprocessor.

Described bold and unrestrained and deadlock holding circuit is joined with microprocessor and pace-making output control circuit; startup work under the control of microprocessor; when being used to prevent that some discrete component of cardiac pacemaker from damaging; the pace-making pace-making output control circuit that causes out of control is exported fast and irregular impulse stimulation, influences the normal pace-making of heart.

The protection of described defibrillation and EMI filter circuit and P or R ripple detection circuit and pace-making output control circuit link to each other; perception electrocardiosignal and output pacing signal are carried out defibrillation protection and electromagnetic interference filtering; high-voltage pulse is to the cardiac pacemaker damage of circuit when being used for preventing defibrillation, and electromagnetic interference signal carried out filtering avoid its interference to normal pacing signal.

Described microprocessor mainly realizes that by control pace-making output control circuit, perception control circuit and internal wireless radio-frequency communication module the output of pacemaker impulse signal, the perception of electrocardiosignal and the inquiry and the programming of pacing parameter are provided with; Microprocessor is realized the work of P or R ripple detection circuit is controlled by the signal controlling to the perception control circuit, behind the electrocardio perceptual signal that microprocessor reception P or R ripple detection circuit send over, careful inductance is known when signal frequency is higher than the pacing signal operating frequency that microprocessor sets, microprocessor can send signal is suppressed the pacing stimulation pulse of pace-making output control circuit, careful inductance is known when signal frequency is lower than the pacing signal operating frequency that microprocessor sets, microprocessor can send signal makes the pace-making output control circuit produce the pacing stimulation cardiac stimulating pulse, is higher than pacing frequency up to heart self heart rate; Microprocessor carries out the communication of pacing parameter by internal wireless radio-frequency communication module and outside program control instrument, and by outside program control instrument pacing parameter is programmed, and exchanges with microprocessor data, realizes carrying out program control to the pacing parameter of cardiac pacemaker.

The present invention has following advantage with respect to prior art:

(1) the present invention adopts the carrier of ultrasonic signal as energy delivery, can penetrate human body skin and muscular tissue by noinvasive, the power supply of the subcutaneous cardiac pacemaker of implant into body is carried out the contactless charging of noinvasive come makeup energy, avoided the operation of replacing once more behind the pacemaker batteries power consumption, the operation that has reduced the patient is dangerous and painful, alleviate patient's financial burden, improved the use value of implant cardiac pacemaker.

(2) the present invention's energy supplement of can be the miniature therapy equipment power supply of other property implanted provides technical support.

(3) implantation rate of China's cardiac pacemaker is low at present, and the annual newly-increased patient that need implantable heart pacer more than 100,000 is arranged, along with the arrival of aging society, cardiovascular disease has the trend of rapid increase, and the present invention has good economic benefit and social benefit.

Description of drawings

Fig. 1 is the system construction drawing of a kind of chargeable implant cardiac pacemaker device of the present invention.

Fig. 2 is the theory diagram of the outside program control instrument of Fig. 1.

Fig. 3 is the theory diagram of the cardiac pacemaker of Fig. 1.

Reference numeral:

1 supersonic generator; 2 outside program control instruments; 3 human body skins; 4 cardiac pacemakers; 5 external wireless radio-frequency communication modules; 6 external program control circuits; 7 display; 8 buttons; 9 printout modules; 10 internal wireless radio-frequency communication modules; 11 microprocessors; 12 pace-making output control circuits; 13 bold and unrestrained and deadlock holding circuits; 14P or R ripple detection circuit; 15 perception control circuits; 16 power supply monitoring control modules; 17 power supply conditioning module; 18 ultrasonic signals receive modular converter; 19 power modules; protection of 20 defibrillations and EMI filter circuit; 21 pacing electrodes.

The specific embodiment

The invention will be further described below in conjunction with drawings and Examples.

As shown in Figure 1, this chargeable implant cardiac pacemaker device, comprise cardiac pacemaker 4, outer supersonic generator 1 and the outside program control instrument 2 of human body in the implant into body, supersonic generator 1 is connected with cardiac pacemaker 4 signals by ultrasonic signal, and outside program control instrument 2 is connected with cardiac pacemaker 4 signals by radio frequency signal;

Described supersonic generator 1 comprises generator body and the ultrasonic emitting probe that links to each other with the generator body;

As shown in Figure 2, described outside program control instrument 2 comprises externalprogram control circuit 6 and external wireless radio-frequency communication module 5,display 7,button 8, theprintout module 9 of joining with externalprogram control circuit 6;

As shown in Figure 3, described cardiac pacemaker 4 comprises internal wireless radio-frequency communication module 10, microprocessor 11, pace-making output control circuit 12, bold and unrestrained and deadlock holding circuit 13, P or R ripple detection circuit 14, perception control circuit 15, power module 19, defibrillation protection and EMI filter circuit 20 and pacing electrode 21, and described power module 19 comprises that ultrasonic signal receives modular converter 18, power supply conditioning module 17, energy-storage travelling wave tube and power supply monitoring control module 16;

Described microprocessor 11 connects internal wireless radio-frequency communication modules 10, pace-making output control circuit 12, bold and unrestrained and deadlock holding circuit 13, P or R ripple detection circuit 14, perception control circuit 15, bold and unrestrainedly be connected pace-making output control circuit 12 with deadlock holding circuit 13, perception control circuit 15 connects P or R ripple detection circuit 14, and the defibrillation protection is connected pace-making output control circuit 12, P or R ripple detection circuit 14, pacing electrode 21 with EMI filter circuit 20;

Described ultrasonic signal receives modular converter 18 and connects power supply conditioning module 17, power supply conditioning module 17 connects power supply monitoring control module 16, power supply monitoring control module 16 connects microprocessor 11, and power supply conditioning module 17 connects energy-storage travelling wave tube, and energy-storage travelling wave tube provides electric energy for cardiac pacemaker 4.

Described power supply monitoring control module 16 comprises interconnective power supply energy consumption monitoring indicating circuit and charging control circuit.

In the present embodiment, described energy-storage travelling wave tube is a rechargeable battery.

In the present embodiment, described ultrasonic signal receives modular converter 18 and adopts the high-performance piezoelectric ceramic sheet to realize the reception and the conversion of this ultrasonic signal.

In the present embodiment, send and receive radio frequency signal between described external wireless radio-frequency communication module 5 and the internal wireless radio-frequency communication module 10 mutually, cardiac pacemaker 4 carries out exchanges data by internal wireless radio-frequency communication module 10 and external wireless radio-frequency communication module 5.

In the present embodiment, the shell of described cardiac pacemaker 4 is titanium alloy casings, has good biocompatibility, adopts the two halves elliptic design, and main seamed edge is slick great circle arc, does not have sharp-pointed corner angle, can reduce the stimulation of titanium alloy casing to human body.

In the present embodiment, described pace-making output control circuit 12 comprises pacemaker impulse generation circuit, pacemaker impulse control circuit, pacemaker impulse shaping circuit, pulse multiplication of voltage output circuit and pace-making energy compensating circuit, under the control of microprocessor 11, pace-making output control circuit 12 is provided the pacing signal of certain frequency, pulse amplitude and pulsewidth within a certain period of time, cardiac stimulus work.

The charging method of above-mentioned chargeable implant cardiac pacemaker device, specific as follows:

Described supersonic generator 1 produces and the emission ultrasonic signal, power module 19 received ultrasonic signals of the cardiac pacemaker 4 in the implant into body, be converted into the signal of telecommunication of certain voltage simultaneously, and electric weight is stored in the energy-storage travelling wave tube of power module 19, this energy-storage travelling wave tube provides electric energy for cardiac pacemaker 4, thereby realize the energy supplement to cardiac pacemaker 4, the electric quantity consumption of energy-storage travelling wave tube and charge condition obtain by the radio frequency signal of 2 pairs of cardiac pacemakers 4 of outside program control instrument;

Described supersonic generator 1 comprises generator body and the ultrasonic emitting probe that links to each other with the generator body, is used for producing and the emission ultrasonic signal, and this ultrasonic signal penetrates human body skin 3 and transmits energy to described cardiac pacemaker 4;

Described outside program control instrument 2 carries out the inquiry of pacing parameter inquiry, programming and power supply energy consumption information and charge information by 5 pairs of cardiac pacemakers of external wireless radio-frequency communication module 4; Bybutton 8 inquiry, programming and print command are set, charging process is carried out by key control, carry out the demonstration of query argument and program parameters, carry out the papery printout byprintout module 9 pairs of inquiries, program parameters bydisplay 7.

Described ultrasonic signal receives the signal of telecommunication that modular converter 18 receives the resonance ultrasonic signal of described supersonic generator 1 generation and converts certain voltage to, after power supply conditioning module 17 with electrical power storage in energy-storage travelling wave tube, energy-storage travelling wave tube provides electric energy for cardiac pacemaker 4; Described power supply monitoring control module 16 comprises interconnective power supply energy consumption monitoring indicating circuit and charging control circuit, is used for the electric weight of energy-storage travelling wave tube is monitored and charging process is controlled; The energy expenditure information and the charge information of energy-storage travelling wave tube are provided to outside program control instrument 2 by internal wireless radio-frequency communication module 10 under the control of microprocessor 11.

Described bold and unrestrained and deadlock holding circuit 13 is joined with microprocessor 11 and pace-making output control circuit 12; startup work under the control of microprocessor 11; when being used to prevent that cardiac pacemaker 4 some discrete component from damaging; the pace-making pace-making output control circuit 12 that causes out of control is exported fast and irregular impulse stimulation, influences the normal pace-making of heart.

The protection of described defibrillation and EMI filter circuit 20 and P or R ripple detection circuit 14 and pace-making output control circuit 12 link to each other; perception electrocardiosignal and output pacing signal are carried out defibrillation protection and electromagnetic interference filtering; high-voltage pulse is to cardiac pacemaker 4 damage of circuit when being used for preventing defibrillation, and electromagnetic interference signal carried out filtering avoid its interference to normal pacing signal.

Described microprocessor 11 mainly realizes that by control pace-making output control circuit 12, perception control circuit 15 and internal wireless radio-frequency communication module 10 output of pacemaker impulse signal, the perception of electrocardiosignal and the inquiry and the programming of pacing parameter are provided with; Microprocessor 11 is realized the work of P or R ripple detection circuit 14 is controlled by the signal controlling to perception control circuit 15, behind the electrocardio perceptual signal that microprocessor 11 reception P or R ripple detection circuit 14 send over, careful inductance is known when signal frequency is higher than the pacing signal operating frequency that microprocessor 11 sets, microprocessor 11 can send signal is suppressed the pacing stimulation pulse of pace-making output control circuit 12, careful inductance is known when signal frequency is lower than the pacing signal operating frequency that microprocessor 11 sets, microprocessor 11 can send signal makes pace-making output control circuit 12 produce the pacing stimulation cardiac stimulating pulse, is higher than pacing frequency up to heart self heart rate; Microprocessor 11 carries out the communication of pacing parameter by internal wireless radio-frequency communication module 10 and outside program control instrument 2, and by 2 pairs of pacing parameter programmings of outside program control instrument, and with microprocessor 11 exchanges data, realize carrying out program control to the pacing parameter of cardiac pacemaker 4.

The above-mentioned specific embodiment is the preferred embodiments of the present invention; can not limit claim of the present invention; other any change or other equivalent substitute mode that does not deviate from technical scheme of the present invention and made is included within protection scope of the present invention.

Claims (6)

1. chargeable implant cardiac pacemaker device, it is characterized in that: comprise cardiac pacemaker, outer supersonic generator and the outside program control instrument of human body in the implant into body, supersonic generator is connected with the cardiac pacemaker signal by ultrasonic signal, and outside program control instrument is connected with the cardiac pacemaker signal by radio frequency signal;

Described supersonic generator comprises generator body and the ultrasonic emitting probe that links to each other with the generator body;

Described outside program control instrument comprises external program control circuit and external wireless radio-frequency communication module, display, button, the printout module of joining with the external program control circuit;

Described cardiac pacemaker comprises internal wireless radio-frequency communication module, microprocessor, pace-making output control circuit, bold and unrestrained and deadlock holding circuit, P or R ripple detection circuit, perception control circuit, power module, defibrillation protection and EMI filter circuit and pacing electrode, and described power module comprises that ultrasonic signal receives modular converter, power supply conditioning module, energy-storage travelling wave tube and power supply monitoring control module;

Described microprocessor connects internal wireless radio-frequency communication module, pace-making output control circuit, bold and unrestrained and deadlock holding circuit, P or R ripple detection circuit, perception control circuit, bold and unrestrainedly be connected the pace-making output control circuit with the deadlock holding circuit, the perception control circuit connects P or R ripple detection circuit, and the defibrillation protection is connected pace-making output control circuit, P or R ripple detection circuit, pacing electrode with the EMI filter circuit;

Described ultrasonic signal receives modular converter and connects the power supply conditioning module, the power supply conditioning module connects the power supply monitoring control module, the power supply monitoring control module connects microprocessor, and the power supply conditioning module connects energy-storage travelling wave tube, and energy-storage travelling wave tube provides electric energy for cardiac pacemaker;

Described power supply monitoring control module comprises interconnective power supply energy consumption monitoring indicating circuit and charging control circuit;

Described ultrasonic signal receives modular converter and adopts the high-performance piezoelectric ceramic sheet to realize the reception and the conversion of this ultrasonic signal.

2. chargeable implant cardiac pacemaker device according to claim 1 is characterized in that: described energy-storage travelling wave tube is a rechargeable battery.

3. chargeable implant cardiac pacemaker device according to claim 1, it is characterized in that: send mutually between described external wireless radio-frequency communication module and the internal wireless radio-frequency communication module and the reception radio frequency signal, cardiac pacemaker carries out exchanges data by internal wireless radio-frequency communication module and external wireless radio-frequency communication module.

4. chargeable implant cardiac pacemaker device according to claim 1 is characterized in that: the shell of described cardiac pacemaker is a titanium alloy casing, and shell is the two halves ellipsoidal structure.

5. chargeable implant cardiac pacemaker device according to claim 1, it is characterized in that: described pace-making output control circuit comprises pacemaker impulse generation circuit, pacemaker impulse control circuit, pacemaker impulse shaping circuit, pulse multiplication of voltage output circuit and pace-making energy compensating circuit, under the control of microprocessor, the pace-making output control circuit is provided the pacing signal of certain frequency, pulse amplitude and pulsewidth within a certain period of time, cardiac stimulus work.

6. the charging method of chargeable implant cardiac pacemaker device according to claim 1 is characterized in that:

Described supersonic generator produces and the emission ultrasonic signal, the power module received ultrasonic signal of the cardiac pacemaker in the implant into body, be converted into the signal of telecommunication of certain voltage simultaneously, and electric weight is stored in the energy-storage travelling wave tube of power module, this energy-storage travelling wave tube provides electric energy for cardiac pacemaker, thereby realize the energy supplement to cardiac pacemaker, the electric quantity consumption of energy-storage travelling wave tube and charge condition obtain by the radio frequency signal of outside program control instrument to cardiac pacemaker;

Described supersonic generator comprises generator body and the ultrasonic emitting probe that links to each other with the generator body, is used for producing and the emission ultrasonic signal, and this ultrasonic signal penetrates human body skin and transmits energy to described cardiac pacemaker;

Described outside program control instrument carries out the inquiry of pacing parameter inquiry, programming and power supply energy consumption information and charge information to cardiac pacemaker by external wireless radio-frequency communication module;

Described ultrasonic signal receives the signal of telecommunication that modular converter receives the resonance ultrasonic signal of described supersonic generator generation and converts certain voltage to, after the power supply conditioning module with electrical power storage in energy-storage travelling wave tube, energy-storage travelling wave tube provides electric energy for cardiac pacemaker; Described power supply monitoring control module comprises interconnective power supply energy consumption monitoring indicating circuit and charging control circuit, is used for the electric weight of energy-storage travelling wave tube is monitored and charging process is controlled; The energy expenditure information and the charge information of energy-storage travelling wave tube are provided to outside program control instrument by internal wireless radio-frequency communication module under the control of microprocessor;

Described bold and unrestrained and deadlock holding circuit is joined with microprocessor and pace-making output control circuit, startup work under the control of microprocessor, when being used to prevent that some discrete component of cardiac pacemaker from damaging, the pace-making pace-making output control circuit that causes out of control is exported fast and irregular impulse stimulation;

The protection of described defibrillation and EMI filter circuit and P or R ripple detection circuit and pace-making output control circuit link to each other, perception electrocardiosignal and output pacing signal are carried out defibrillation protection and electromagnetic interference filtering, high-voltage pulse is to the cardiac pacemaker damage of circuit when being used for preventing defibrillation, and electromagnetic interference signal carried out filtering avoid its interference to normal pacing signal;

Described microprocessor mainly realizes that by control pace-making output control circuit, perception control circuit and internal wireless radio-frequency communication module the output of pacemaker impulse signal, the perception of electrocardiosignal and the inquiry and the programming of pacing parameter are provided with; Microprocessor is realized the work of P or R ripple detection circuit is controlled by the signal controlling to the perception control circuit; Microprocessor carries out the communication of pacing parameter by internal wireless radio-frequency communication module and outside program control instrument, and by outside program control instrument pacing parameter is programmed, and exchanges with microprocessor data, realizes carrying out program control to the pacing parameter of cardiac pacemaker.

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