阅读说明：本技术 一种心脏起搏装置 (Cardiac pacemaker ) 是由 熊梦晨 于 2021-08-22 设计创作，主要内容包括：本发明提出了一种心脏起搏装置,涉及心脏起搏技术领域。一种心脏起搏装置,包括电压处理单元、脉冲发生器和两个起搏电极导线,电压处理单元包括调压模块,调压模块包括可调电压路和供电电压路,可调电压路与任意起搏电极导线连接,脉冲发生器包括控制单元,供电电压路与控制单元连接,控制单元的接地端与另一起搏电机导线连接。可调电压路与起搏电极导线之间设置有无触点开关,控制单元与无触点开关连接,控制单元连接有占空比输入端和频率输入端。本发明能够自由调节脉冲信号,可根据不同的需求分别用于体内心脏起搏和体外心脏起搏。(The invention provides a cardiac pacing device, and relates to the technical field of cardiac pacing. The utility model provides a cardiac pacing device, includes voltage processing unit, pulse generator and two pacing electrode wires, and voltage processing unit includes the pressure regulating module, and the pressure regulating module is pressed and is supplied power the electric road including the adjustable electric road, and the adjustable electric road is connected with arbitrary pacing electrode wire, and pulse generator includes the control unit, supplies power the electric road and is connected with the control unit, and the earthing terminal and another pacing motor wire of control unit are connected. A contactless switch is arranged between the adjustable electric road roller and the pacing electrode lead, a control unit is connected with the contactless switch, and the control unit is connected with a duty ratio input end and a frequency input end. The invention can freely adjust the pulse signal, and can be respectively used for internal cardiac pacing and external cardiac pacing according to different requirements.)

1. A cardiac pacing device is characterized by comprising a voltage processing unit, a pulse generator and two pacing electrode leads, wherein the voltage processing unit comprises a voltage regulating module, the voltage regulating module comprises a voltage regulating circuit and a power supply circuit, the voltage regulating circuit is connected with any pacing electrode lead, the pulse generator comprises a control unit, the power supply circuit is connected with the control unit, and the grounding end of the control unit is connected with another pacing motor lead;

a contactless switch is arranged between the adjustable electric road roller and the pacing electrode lead, the control unit is connected with the contactless switch, and the control unit is connected with a duty ratio input end and a frequency input end.

2. The cardiac pacing device according to claim 1, wherein the voltage processing unit further comprises a voltage transformation module, and the voltage transformation module is respectively connected with the voltage regulation module and a mains supply.

3. The cardiac pacing device according to claim 2, wherein a rectifying module is disposed between the voltage transforming module and the voltage regulating module.

4. A cardiac pacing device according to claim 1, wherein the contactless switch comprises a transistor having a collector connected to an adjustable voltage path, a base connected to the control unit, and an emitter connected to the pacing electrode lead.

5. The cardiac pacing device according to claim 1, wherein the contactless switch comprises a mos transistor, a drain of the mos transistor is connected to an adjustable voltage path, a gate of the mos transistor is connected to the control unit, and a source of the mos transistor is connected to the pacing electrode lead.

6. A cardiac pacing device according to any one of claims 1-5 wherein a current regulation circuit is provided between the two pacing electrode leads for regulating the pulsed output current.

7. A cardiac pacing device according to claim 1, wherein a plurality of voltage detectors are provided between the two pacing electrode leads, the voltage detectors being connected to the control unit.

8. A cardiac pacing device according to claim 1, wherein the control unit is further connected to an activation command input.

9. A cardiac pacing device according to claim 1, wherein a display module is connected to the control unit.

10. A cardiac pacing device according to claim 1, wherein a clock module is connected to the control unit.

Technical Field

The invention relates to the technical field of cardiac pacing, in particular to a cardiac pacing device.

Background

Pacemaker, in fact, refers to the entire pacing system. The pacing system consists of a pacemaker, a pacing electrode lead and a program controller. Wherein the pacemaker and the pacing electrode lead are implanted in a human body. The pacemaker consists of a circuit and a battery mounted in a metal case. The pacemaker sends tiny electric pulse to the heart when needed, and the pacing electrode lead consists of insulated leads and is responsible for transmitting tiny electric pulses to the heart and stimulating the heart to beat. The heart pacemaker is an electronic therapeutic apparatus implanted in a human body, and electric pulses powered by a battery are delivered by a pulse generator, and conducted by a lead electrode to stimulate cardiac muscle contacted by the electrode so as to excite and contract the heart, thereby achieving the aim of treating heart dysfunction caused by certain arrhythmia. The existing cardiac pacemaker comprises an external pacemaker and an internal pacemaker, wherein the pulse signal output by the external pacemaker is larger, and the pulse signal output by the internal pacemaker is smaller. At present, no pacemaker capable of freely adjusting pulse signals exists in the market.

Disclosure of Invention

The invention aims to provide a cardiac pacing device which can freely adjust pulse signals and can be respectively used for internal cardiac pacing and external cardiac pacing according to different requirements.

The embodiment of the invention is realized by the following steps:

the embodiment of the application provides a cardiac pacing device, which comprises a voltage processing unit, a pulse generator and two pacing electrode leads, wherein the voltage processing unit comprises a voltage regulating module, the voltage regulating module comprises a voltage regulating circuit and a power supply circuit, the voltage regulating circuit is connected with any pacing electrode lead, the pulse generator comprises a control unit, the power supply circuit is connected with the control unit, and the grounding end of the control unit is connected with the lead of another pacing motor;

a contactless switch is arranged between the adjustable electric road roller and the pacing electrode lead, a control unit is connected with the contactless switch, and the control unit is connected with a duty ratio input end and a frequency input end.

In some embodiments of the present invention, the voltage processing unit further includes a voltage transforming module, and the voltage transforming module is respectively connected to the voltage regulating module and the commercial power.

In some embodiments of the present invention, a rectifying module is disposed between the voltage transforming module and the voltage regulating module.

In some embodiments of the present invention, the contactless switch comprises a triode, a collector of the triode is connected to the adjustable voltage circuit, a base of the triode is connected to the control unit, and an emitter of the triode is connected to the pacing electrode lead.

In some embodiments of the present invention, the contactless switch includes a mos transistor, a drain of the mos transistor is connected to the adjustable voltage circuit, a gate of the mos transistor is connected to the control unit, and a source of the mos transistor is connected to the pacing electrode lead.

In some embodiments of the present invention, a current regulating circuit is disposed between the two pacing electrode leads for regulating the pulse output current.

In some embodiments of the present invention, a plurality of voltage detectors are disposed between the two pacing electrode leads, and the voltage detectors are connected to the control unit.

In some embodiments of the present invention, the control unit is further connected to a start command input terminal.

In some embodiments of the present invention, the control unit is connected to a display module.

In some embodiments of the present invention, the control unit is connected to a clock module.

Compared with the prior art, the embodiment of the invention has at least the following advantages or beneficial effects:

the invention provides a cardiac pacing device, which comprises a voltage processing unit, a pulse generator and two pacing electrode leads. The voltage processing unit is used for processing the commercial power into a voltage suitable for cardiac pacing and eliminating a pole wound signal of the commercial power. The pulse generator delivers electric pulses which are powered by a power supply, and the electric pulses are conducted by the pacing electrode lead to stimulate the cardiac muscle contacted by the electrode, so that the heart is excited and contracted, and the purpose of treating the heart dysfunction caused by certain arrhythmia is achieved. The pacing electrode leads are connected to the heart for pacing. The voltage processing unit comprises a voltage regulating module, the voltage regulating module comprises an adjustable voltage circuit and a power supply voltage circuit, the adjustable voltage circuit is connected with any pacing electrode lead, the pulse generator comprises a control unit, the power supply voltage circuit is connected with the control unit, and the grounding end of the control unit is connected with another pacing motor lead. The voltage regulating module is used for dividing the direct current into a fixed direct current part and providing power for the control unit, and the voltage regulating module is also used for dividing the direct current into an adjustable direct current part and outputting pulses for adjustable direct current voltage. The adjustable voltage circuit is used for dividing direct current into an adjustable direct current part, and the power supply circuit is used for dividing the direct current into a fixed direct current part. A contactless switch is arranged between the adjustable electric road roller and the pacing electrode lead, the control unit is connected with the contactless switch, and the control unit is connected with a duty ratio input end and a frequency input end. The contactless switch can function as a contactless switch. The control unit controls the on-off of the contactless switch, thereby controlling the disconnection and connection between the adjustable voltage circuit and the pacing electrode lead. The duty ratio input end and the frequency input end can send control signals of duty ratio and frequency to the control unit, and the control signals are used for controlling the duty ratio and the frequency of the pulse signals and achieving the purpose of adjusting the pulse signals. Therefore, the cardiac pacing device can regulate the output pulse signal through the pressure regulating module according to two requirements of external pacing and internal pacing.

Therefore, the cardiac pacing device can freely adjust the pulse signals and can be respectively used for internal cardiac pacing and external cardiac pacing according to different requirements.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural diagram of an embodiment of the present invention;

fig. 2 is a block diagram of the structure of the embodiment of the present invention.

Icon: 1-starting command input end, 2-display module, 3-A/D converter, 4-voltage detector, 5-current regulation circuit, 6-second knob, 7-pacing electrode lead, 8-single chip microcomputer, 9-first knob, 10-voltage regulation module, 11-rectification module, 12-transformer, 13-crystal oscillator, 14-contactless switch, 15-duty ratio input end, 16-evaluation input end, 17-adjustable voltage circuit and 18-power supply circuit.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, 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 some, but not all, embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the figures, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. 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.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the embodiments of the present invention, it should be noted that, if the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or the orientations or positional relationships that the products of the present invention are usually placed in when used, the orientations or positional relationships are only used for convenience of describing the present invention and simplifying the description, but the terms do not indicate or imply that the devices or elements indicated must have specific orientations, be constructed in specific orientations, and operate, and therefore, should not be construed as limiting the present invention. Furthermore, the appearances of the terms "first," "second," "third," and the like, if any, are only used to distinguish one description from another, and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not require that the components be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the embodiments of the present invention, "plurality" if any, means at least 2.

In the description of the embodiments of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

Examples

Referring to fig. 1 and 2, fig. 1 is a schematic structural diagram according to an embodiment of the present invention; fig. 2 is a block diagram of the structure of the embodiment of the present invention. The present embodiment provides a cardiac pacing apparatus comprising a voltage processing unit, a pulse generator and two pacing electrode leads 7. The voltage processing unit is used for processing the commercial power into a voltage suitable for cardiac pacing and eliminating a pole wound signal of the commercial power. The pulse generator delivers electric pulses which are supplied with energy by a power supply, and the electric pulses are conducted through the pacing electrode lead 7 to stimulate the cardiac muscle contacted by the electrode, so that the heart is excited and contracted, and the purpose of treating the heart dysfunction caused by certain arrhythmia is achieved. The pacing electrode lead 7 is connected to the heart for pacing.

In this embodiment, the voltage processing unit includes a voltage regulating module 10, the voltage regulating module 10 includes an adjustable voltage path 17 and a power supply voltage path 18, the adjustable voltage path 17 is connected to any pacing electrode lead 7, the pulse generator includes a control unit, the power supply voltage path 18 is connected to the control unit, and a ground terminal of the control unit is connected to another pacing motor lead.

In this embodiment, the voltage regulating module 10 is configured to divide the dc power into a fixed dc portion for providing power to the control unit, and the voltage regulating module 10 is further configured to divide the dc power into an adjustable dc portion for pulse output of the adjustable dc voltage. The adjustable voltage circuit 17 is used to divide the dc power into adjustable dc portions, and the supply voltage circuit 18 is used to divide the dc power into fixed dc portions.

In this embodiment, a contactless switch 14 is provided between the adjustable voltage path 17 and the pacing electrode lead 7, the control unit is connected to the contactless switch 14, and the control unit is connected to a duty input terminal 15 and a frequency input terminal.

In the present embodiment, the above-described contactless switch 14 can function as the contactless switch 14. The control unit controls the on and off of the contactless switch 14, thereby controlling the disconnection and connection between the adjustable voltage path 17 and the pacing electrode lead 7. Therefore, the cardiac pacing device can regulate the output pulse signal through the voltage regulating module 10 according to two requirements of external pacing and internal pacing.

Therefore, the cardiac pacing device can freely adjust the pulse signals and can be respectively used for internal cardiac pacing and external cardiac pacing according to different requirements.

Referring to fig. 1 and 2, in some embodiments of the present embodiment, the voltage processing unit further includes a voltage transformation module, and the voltage transformation module is respectively connected to the voltage regulation module 10 and the commercial power.

In this embodiment, the voltage processing unit further includes a voltage transforming module, and the voltage transforming module is configured to transform the commercial power with a high voltage into a low voltage that can be used by the voltage regulating module 10. Specifically, the transformer module includes a transformer 12, and the transformer 12 is a device for transforming ac voltage, current and impedance, and when an ac current flows through a primary winding, an ac magnetic flux is generated in an iron core (or a magnetic core), so that a voltage (or a current) is induced in a secondary winding. The transformer 12 is composed of an iron core (or a magnetic core) and a coil, and the coil has two or more windings, wherein the winding connected with a power supply is called a primary coil, and the other windings are called secondary coils. In a generator, an electric potential is induced in a coil, whether the coil is moved through a magnetic field or the magnetic field is moved through a stationary coil, in both cases the value of the flux is constant, but the amount of flux linked to the coil varies, which is the principle of mutual induction. The transformer 12 is a device for transforming voltage, current and impedance by using the effect of mutual electromagnetic inductance. In this embodiment, the transformer 12 is used to convert the 220V commercial power into a low voltage current for conveniently converting the adjustable voltage circuit 17 and the power supply voltage circuit 18.

Referring to fig. 1 and 2, in some embodiments of the present invention, a rectifying module 11 is disposed between the voltage transforming module and the voltage regulating module 10.

In the present embodiment, the rectifier module 11 is a circuit for converting ac power into dc power, and converts the dc power into 48V or 24V dc power to be output to the dc power distribution unit. The resonance switch power supply technology adopting resonance voltage type double-loop control has the characteristics of high voltage stabilization precision and quick dynamic response. If the user uses a direct current power supply, the direct current power supply can be connected into the rectifying circuit to realize the transformation of the direct current power supply. Similarly, when the utility power supply is used, the utility power is transformed by the transformer 12, and then the alternating current is converted into the direct current by the rectifier module 11.

Referring to fig. 1, in some embodiments of the present invention, the contactless switch 14 includes a transistor, a collector of the transistor is connected to an adjustable voltage circuit 17, a base of the transistor is connected to the control unit, and an emitter of the transistor is connected to the pacing electrode lead 7.

In this embodiment, the contactless switch 14 includes a transistor, and the control unit transmits a high frequency signal to the base of the transistor to connect the collector with the emitter when the collector of the transistor transmits an electrical signal to the emitter. The high-frequency signal comprises a duty ratio and frequency adjusting signal which is used for adjusting the duty ratio and the frequency of the output pulse current. The duty ratio is a ratio of the energization time to the total time in one pulse cycle. The duty ratio is the modulation of pulse width of a voltage signal with a certain frequency added on the triode by the control unit, namely, the duty ratio control, so as to realize the accurate and continuous control of the working condition of the triode. The frequency control is realized by the frequency of the high-frequency signal transmitted by the control unit.

In some embodiments of the present embodiment, the contactless switch 14 comprises a mos transistor (not shown), the drain of which is connected to the adjustable voltage path 17. The gate of the mos tube is connected to the control unit, and the source of the mos tube is connected to the pacing electrode lead 7.

In this embodiment, the mos tube functions as the transistor. A self-excitation circuit is formed by a triode or an MOS tube and outputs pulse power. And a pulse signal is input to the base electrode of the triode or the MOS tube, and the on-off of the triode or the MOS tube is controlled so as to output pulse voltage.

Referring to fig. 1, in some embodiments of the present invention, a current adjusting circuit 5 is disposed between the two pacing electrode leads 7, and the current adjusting circuit 5 is used for adjusting the pulse output current.

In the present embodiment, the current adjusting circuit 5 is used to adjust the intensity of the output pulse current. The current adjusting circuit 5 comprises a second knob 6, and the rotation of the second knob 6 can enable the current adjusting circuit 5 to adjust the circuit. The adjustable range of the current adjusting circuit 5 in this embodiment is 3 to 30 mA.

It should be noted that, in this embodiment, the adjustable voltage path 17 includes a first knob 9 for adjusting voltage, and the voltage adjustment can be completed by rotating the first knob 9. The voltage regulating range of the adjustable electric road roller 17 is 5-30V. The power supply circuit 18 directly adjusts the self-current generated by the rectifying circuit to 5V dc. In this embodiment, the control unit includes a single chip microcomputer 8, specifically AT89C52, and the power supply of the control unit is required to be 5V dc, and can be directly connected to the power supply circuit 18.

Referring to fig. 1, in some embodiments of the present invention, a plurality of voltage detectors 4 are disposed between the two pacing electrode leads 7, and the voltage detectors 4 are connected to the control unit. An a/D converter 3 is provided between the voltage detector 4 and the control unit.

In the present embodiment, the voltage detector 4 is configured to detect a voltage between the two pacing electrode leads 7 and transmit a detected voltage signal to the a/D converter 3, and the a/D converter 3 is configured to convert an electrical signal of the voltage signal into an analog signal that the control unit can receive and process. After the control unit receives the voltage signal, a current signal can be obtained through analysis and processing. Thereby, the characteristics of the finally output pulse signal are obtained. If the characteristics do not meet the output requirement, the control unit can control to output a new high-frequency signal to the base electrode of the triode for dynamically adjusting the output of the pulse signal.

Referring to fig. 1, in some embodiments of the present invention, the control unit is further connected to a start command input terminal 1.

In this embodiment, the start command input terminal 1 can send a start signal to the control unit to start the control unit to operate.

Referring to fig. 1, in some embodiments of the present invention, the control unit is connected to a display module 2. The display module 2 is used for displaying information analyzed and processed by the control unit in real time, such as displaying: duty ratio, frequency, voltage and current of the pulse signal. The user can observe the pulse signal information in real time conveniently, and different pacing treatment references are given to the patient.

Referring to fig. 1, in some embodiments of the present invention, the control unit is connected to a clock module. The clock module comprises a crystal oscillator 13 connected with the control unit and used for displaying that the control unit sends out a high-frequency signal with required frequency to obtain a pulse signal with required frequency.

When in use, the first knob 9 and the second knob 6 are adjusted, so that the first knob 9 and the second knob are adjusted to the required voltage and power supply. The start signal is then input via start command input 1 and the required duty cycle and frequency are input via duty cycle input 15 and frequency input. The control unit sends out a required high-frequency signal to the base electrode of the triode under the action of the crystal oscillator 13, and controls and outputs a required pulse signal.

In summary, the embodiment of the present invention provides a cardiac pacing device, which includes a voltage processing unit, a pulse generator and two pacing electrode leads 7. The voltage processing unit is used for processing the commercial power into a voltage suitable for cardiac pacing and eliminating a pole wound signal of the commercial power. The pulse generator delivers electric pulses which are supplied with energy by a power supply, and the electric pulses are conducted through the pacing electrode lead 7 to stimulate the cardiac muscle contacted by the electrode, so that the heart is excited and contracted, and the purpose of treating the heart dysfunction caused by certain arrhythmia is achieved. The pacing electrode lead 7 is connected to the heart for pacing. The voltage processing unit comprises a voltage regulating module 10, the voltage regulating module 10 comprises an adjustable voltage circuit 17 and a power supply voltage circuit 18, the adjustable voltage circuit 17 is connected with any pacing electrode lead 7, the pulse generator comprises a control unit, the power supply voltage circuit 18 is connected with the control unit, and the grounding end of the control unit is connected with another pacing motor lead. The voltage regulating module 10 is used for dividing the direct current into a fixed direct current part and providing a power supply for the control unit, and the voltage regulating module 10 is also used for dividing the direct current into an adjustable direct current part and performing pulse output on the adjustable direct current voltage. The adjustable voltage circuit 17 is used to divide the dc power into adjustable dc portions, and the supply voltage circuit 18 is used to divide the dc power into fixed dc portions. A contactless switch 14 is arranged between the adjustable voltage path 17 and the pacing electrode lead 7, the control unit is connected with the contactless switch 14, and the control unit is connected with a duty ratio input end 15 and a frequency input end. The above-described contactless switch 14 can function as the contactless switch 14. The control unit controls the on and off of the contactless switch 14, thereby controlling the disconnection and connection between the adjustable voltage path 17 and the pacing electrode lead 7. The duty ratio input terminal 15 and the frequency input terminal can send control signals of duty ratio and frequency to the control unit, so as to control the duty ratio and frequency of the pulse signal, and achieve the purpose of adjusting the pulse signal. Therefore, the cardiac pacing device can regulate the output pulse signal through the voltage regulating module 10 according to two requirements of external pacing and internal pacing. Therefore, the cardiac pacing device can freely adjust the pulse signals and can be respectively used for internal cardiac pacing and external cardiac pacing according to different requirements.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.