Dual-mode defibrillation electrode and mode switching method

Abstract

The invention belongs to the technical field of medical instruments, and discloses a dual-mode defibrillation electrode and a mode switching method.The defibrillation electrode comprises a defibrillation electrode circuit board and a defibrillation discharging interface, and the defibrillation electrode circuit board is connected with a multifunctional communication interface, a mode switching switch and a mode indicating lamp; a single-chip microcomputer control unit is integrated in the defibrillation electrode circuit board, and one interface of the multifunctional communication interface is electrically connected with the single-chip microcomputer control unit. The mode change-over switch is electrically connected with the single-chip microcomputer control unit, and the mode indicating lamp is electrically connected with the single-chip microcomputer control unit. Identification of different modes is designed into the defibrillation electrode connector and is integrated with the defibrillation electrode, a toggle switch or a key does not need to be arranged on a defibrillator host, misoperation is avoided, a host shell structure is prevented from being damaged, interfaces of the host are reduced, information of the defibrillation electrode can be stored, and the validity period of the defibrillation electrode can be read.

Description

Technical Field

[0001] The present invention belongs to the technical field of medical devices, and in particular relates to a dual-mode defibrillation electrode and a mode switching method. Background Art

[0002] AEDs generally have two defibrillation treatment modes: adult mode and child mode; the difference lies in the amount of energy released by defibrillation. The on-site rescuer first determines the patient type based on the patient's age and weight, and then sets the corresponding defibrillation treatment mode.

[0003] The known technology on the market at present is that the defibrillation mode is set by designing a toggle switch or button on the defibrillator host. The rescuer can switch the defibrillation mode by toggling the switch on the defibrillator host or pressing the button. The corresponding mode indicator light device will light up, and feedback to the rescuer that the operation setting is successful. The above technology has two defects and shortcomings: First, there are currently three types of defibrillation electrodes: adult electrodes, child electrodes, and adult-child integrated electrodes. If adult electrodes are used during emergency treatment, and the switch is accidentally toggled on the host to switch to the child mode, this will cause the defibrillation on the adult patient to release the child's energy. Since the child's defibrillation energy is low, the defibrillation treatment will fail. On the contrary, when the patient is a child, the adult mode is switched by mistake, and the adult energy is released to the child. The adult defibrillation energy is high, which will cause skin burns and other injuries after defibrillation. Second, installing a switch or button on the defibrillator host requires hollowing out the outer shell of the defibrillator host structure, which destroys the overall strength of the defibrillator host structure and increases the difficulty of waterproofing and dustproofing of the host shell, which is not conducive to waterproofing and dustproofing of the host.

[0004] The Chinese patent publication number is CN211659073U, and the name is a patent application for a defibrillation electrode with dual type modes. The device includes two electrode pads, an electrode wire, and an electrode plug. The two electrode pads are connected to the electrode plug through a wire, and the electrode plug is connected to the defibrillator. The electrode plug includes a defibrillation pin, a signal pin, and a switch. The switch includes two modes, adult and child. The defibrillator determines the mode of the electrode pad through the signal pin. The electrode plug of the defibrillation electrode pad has a switch that can switch the type mode, which can be switched to an adult type defibrillation electrode or a child type defibrillation electrode according to the usage scenario; when the defibrillation electrode pad is inserted into the external defibrillator, the external defibrillator can identify the type mode of the electrode pad and then provide the energy required for defibrillation. This patent application uses a resistor switch to achieve mode switching, which can only distinguish between adult and child electrode types. It cannot store information such as the manufacturing date, expiration date, product unique code, and usage records of the defibrillator electrodes. It is not convenient for remote and local automated network management of the defibrillator accessories of the automatic external defibrillator. It is also prone to serious product quality problems such as the quality and effect of defibrillation treatment being severely reduced due to the degradation of electrode performance after the electrode expires. Summary of the invention

[0005] In order to overcome the problems existing in the above-mentioned prior art, the purpose of the present invention is to provide a dual-mode defibrillation electrode and a mode switching method, in which the identification of different modes is designed into the defibrillation electrode connector and integrated with the defibrillation electrode. There is no need to install a toggle switch or button on the defibrillator host, thereby avoiding misoperation and damage to the host shell structure, reducing the host interface, and being able to store defibrillation electrode information and read its validity period.

[0006] To achieve the above object, the technical solution adopted by the present invention is: In a first aspect, the present invention provides a dual-mode defibrillation electrode, comprising: a defibrillation electrode circuit board and a defibrillation discharge interface, wherein the defibrillation electrode circuit board is connected to a multifunctional communication interface, a mode switching switch and a mode indicator light, wherein a single-chip microcomputer control unit is integrated in the defibrillation electrode circuit board, wherein one interface of the multifunctional communication interface is electrically connected to the single-chip microcomputer control unit; the mode switching switch is electrically connected to the single-chip microcomputer control unit, and the mode indicator light is electrically connected to the single-chip microcomputer control unit.

[0007] Optionally, the mode indicator light includes a first mode indicator light and a second mode indicator light.

[0008] Optionally, an injection molded structural shell is disposed outside the defibrillation electrode circuit board.

[0009] Optionally, a defibrillation electrode surface sticker is arranged on the top of the injection molded structure shell, and the multifunctional communication interface and the defibrillation discharge interface are both arranged on the bottom of the injection molded structure shell.

[0010] Optionally, the mode switching switch and the mode indicator light are both connected to a GPIO port of a single-chip microcomputer control unit.

[0011] Optionally, the single chip microcomputer control unit adopts an STM32G031 controller.

[0012] Optionally, the single-chip microcomputer control unit stores defibrillator electrode type, production date, expiration date, batch number, and UDI code information.

[0013] Optionally, the mode switching switch is a four-pin button switch.

[0014] Optionally, the mode indicator light is connected to a GPIO port of the single-chip microcomputer control unit.

[0015] In a second aspect, the present invention provides a mode switching method for a dual-mode defibrillation electrode, comprising the following steps: S1: Connect the power supply to power on the defibrillator electrode circuit board and the single-chip control unit; connect with the defibrillator through the multi-function communication interface; the single-chip control unit sends electrode pad status information to the defibrillator through the multi-function communication interface; S2: Read the pressing state of the mode switch through the single-chip control unit; display the current mode through the mode indicator light; S3: Switching the pressed state of the mode switch, detecting the change of the state of the mode switch through the single-chip control unit; and controlling the mode indicator light to switch the display mode through the single-chip control unit.

[0016] Compared with the prior art, the present invention has the following beneficial effects: The mode selection switch of the present invention is arranged on the defibrillation electrode, which reduces the interactive interface of the host and can improve the structural strength and waterproof and dustproof performance of the host shell.

[0017] The electrode sheet of the present invention has the function of storing information. Through the single-chip control unit, key information including the type of defibrillator electrode, production date, expiration date, batch number, and UDI code can be recorded. Data is exchanged with the defibrillator host through a multi-functional communication interface, thereby realizing cloud platform intelligent management and traceability of defibrillator electrodes. The present invention can determine whether the electrode sheet is usable by identifying the expiration date and production date of the electrode sheet, thereby avoiding the problem of reduced rescue rate or failure in treating patients after the electrode sheet fails.

[0018] Furthermore, the present invention can provide eye-catching feedback of the current patient mode status through the mode indicator light and the words printed on the surface of the defibrillation electrode, prompting the operator to prevent the patient from selecting the wrong mode. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The drawings described herein are for explanation purposes only and are not intended to limit the scope of the present invention in any way. In addition, the shapes and proportional dimensions of the components in the drawings are only for illustration purposes to help understand the present invention, and are not intended to specifically limit the shapes and proportional dimensions of the components of the present invention. In the drawings: Figure 1 This is a diagram showing the structure of the adult electrode and the child electrode of the present invention; Figure 2 This is a diagram of the composition of the adult-child integrated electrode structure of the present invention; Figure 3 This is a functional block diagram of the defibrillation electrode circuit of the present invention; Figure 4 This is a circuit diagram of a single chip microcomputer control unit of the present invention; Figure 5 This is a circuit diagram of a key switch of the present invention; Figure 6 This is a circuit diagram of a mode indicator light of the present invention; Figure 7 This is a circuit diagram of the multifunctional communication interface of the present invention; Figure 8 This is a flow chart of the defibrillation electrode software operation of the present invention; Among them, 1. Injection molded structural shell; 2. Defibrillator electrode circuit board; 3. Multi-function communication interface; 4. Defibrillator discharge interface; 5. Defibrillator electrode surface sticker; 6. Mode switching switch; 7. Mode indicator light; 71. First mode indicator light; 72. Second mode indicator light; 8. Single chip microcomputer control unit. DETAILED DESCRIPTION

[0020] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0021] It should be noted that when an element is referred to as being "disposed on" another element, it may be directly on the other element or there may be a central element. When an element is considered to be "connected to" another element, it may be directly connected to the other element or there may be a central element at the same time. The terms "vertical", "horizontal", "left", "right" and similar expressions used herein are for illustrative purposes only and are not intended to be the only embodiment.

[0022] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. The terms used herein in the specification of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the present invention. The term "and / or" used herein includes any and all combinations of one or more of the related listed items.

[0023] The present invention is described in detail below with reference to the accompanying drawings.

[0024] like Figure 1 As shown, a dual-mode defibrillation electrode of the present invention comprises: a defibrillation electrode circuit board 2 and a defibrillation discharge interface 4, the defibrillation electrode circuit board 2 is connected with a multifunctional communication interface 3, a mode switching switch 6 and a mode indicator light 7, a single-chip microcomputer control unit is integrated in the defibrillation electrode circuit board 2, one interface of the multifunctional communication interface 3 is electrically connected to the single-chip microcomputer control unit; the mode switching switch 6 is electrically connected to the single-chip microcomputer control unit, and the mode indicator light 7 is electrically connected to the single-chip microcomputer control unit.

[0025] The dual-mode defibrillation electrode of the present invention reduces the interactive interfaces of the defibrillation host by arranging the mode switching switch 6 on the defibrillation electrode, and can improve the structural strength and waterproof and dustproof performance of the host housing.

[0026] The dual-mode defibrillation electrode of the present invention can record key information including defibrillation electrode type, production date, expiration date, batch number, and UDI code through a single-chip control unit, and exchange data with a defibrillator host through a multifunctional communication interface, thereby realizing cloud platform intelligent management and tracing of defibrillation electrodes. The problem of electrode sheet expiration and inability to trace its production date can be avoided.

[0027] A dual-mode defibrillation electrode of the present invention comprises the following steps when switching modes: S1: Connect the power supply to power on the defibrillator electrode circuit board 2 and the single-chip control unit; connect to the defibrillator through the multi-function communication interface 3; the single-chip control unit sends electrode pad status information to the defibrillator through the multi-function communication interface 3; S2: Read the pressing state of the mode switching switch 6 through the single-chip control unit; display the current mode through the mode indicator light 7; S3: Switch the pressed state of the mode switching switch 6, and detect the state change of the mode switching switch 6 through the single-chip control unit; and control the mode indicator light 7 to switch the display mode through the single-chip control unit.

[0028] Example 1 like Figure 1As shown, a dual-mode defibrillator electrode of this embodiment includes an injection molded structural shell 1, a defibrillator electrode circuit board 2, a multifunctional communication interface 3, a defibrillator discharge interface 4, a defibrillator electrode surface sticker 5, a mode switching switch 6 and a mode indicator light 7.

[0029] The injection molded structural shell 1 is arranged outside the defibrillator electrode circuit board 2 , a defibrillator electrode surface sticker 5 is arranged on the top surface of the injection molded structural shell 1 , and the multifunctional communication interface 3 and the defibrillator discharge interface 4 are both arranged on the bottom of the injection molded structural shell 1 .

[0030] The injection molded structural shell 1 is used to protect the internal defibrillator electrode circuit board 2, and plays the role of waterproofing, dustproofing, isolating the high and low voltage electrical inside the defibrillator electrode, and fixing various communication interfaces.

[0031] The defibrillation electrode circuit board 2 is respectively connected to the multifunctional communication interface 3, the defibrillation discharge interface 4, the mode switching switch 6 and the mode indicator light 7. A single-chip microcomputer control unit is integrated in the defibrillation electrode circuit board 2, and one interface of the multifunctional communication interface 3 is electrically connected to the single-chip microcomputer control unit; the mode switching switch 6 is electrically connected to the single-chip microcomputer control unit. Specifically, the mode switching switch 6 and the mode indicator light 7 are both connected to the GPIO port of the single-chip microcomputer control unit.

[0032] The defibrillation electrode circuit board 2 can detect the defibrillation electrode type, identify the patient mode, indicate the patient mode, and store the production period and validity period of the electrode sheet.

[0033] The multifunctional communication interface 3 is used to connect the defibrillation electrodes with the defibrillator host to realize data communication interaction.

[0034] The defibrillation discharge interface 4 is used to transfer the high-voltage and high-current pulse energy released by the defibrillator host to the patient to achieve defibrillation treatment.

[0035] The mode switching switch 6 is used to switch between the adult mode and the child mode. Specifically, the patient mode changes once the mode switching switch 6 is triggered.

[0036] Specifically, the mode indicator light 7 includes a first mode indicator light 71 and a second mode indicator light 72 ; the words adult and child are respectively silk-screened on the defibrillation electrode surface sticker 5 at the positions corresponding to the first mode indicator light 71 and the second mode indicator light 72 .

[0037] The mode indicator light 7 is used to indicate the current patient mode.

[0038] The single-chip microcomputer control unit is used to detect whether the key switch is triggered, control the on and off status of the indicator light, store the information of the defibrillation electrode, and communicate data with the host.

[0039] Optionally, when the mode switching switch 6 is in a pressed state, the first mode indicator light 71 is on; when the mode switching switch 6 is in a non-pressed state, the second mode indicator light 72 is on.

[0040] Optionally, when the mode switching switch 6 is in a pressed state, the second mode indicator light 72 is on; when the mode switching switch 6 is in a non-pressed state, the first mode indicator light 71 is on.

[0041] Optionally, when the current patient mode is adult, the first mode indicator light 71 above the word "adult" on the corresponding defibrillation electrode surface sticker 5 lights up, indicating that the current defibrillation electrode is in the adult mode; when the patient mode is child, the second mode indicator light 72 above the word "child" on the defibrillation electrode surface sticker 5 lights up, indicating that the current defibrillation electrode is in the child mode.

[0042] Optionally, when the current patient mode is adult, the second mode indicator light 72 above the word "adult" on the corresponding defibrillation electrode surface sticker 5 lights up, indicating that the current defibrillation electrode is in the adult mode; when the patient mode is child, the first mode indicator light 71 above the word "child" on the defibrillation electrode surface sticker 5 lights up, indicating that the current defibrillation electrode is in the child mode.

[0043] Specifically, when the defibrillation electrode of the present invention is produced, the information of the defibrillation electrode type, production date, validity period, batch number, and UDI code is written into the Flash of the single-chip control unit through the multifunctional communication interface 3. When the defibrillation electrode is connected to the defibrillator host, these data information can be transmitted to the host through serial communication, and the host determines whether the defibrillation electrode is effective, so as to avoid the defibrillation rescue effect affected by the invalid defibrillation electrode. In addition, the host can also transmit these data information of the defibrillation electrode type, production date, validity period, batch number, and UDI code to the network cloud platform, which is convenient for dealers to manage and trace the defibrillation electrodes.

[0044] Example 2 like Figure 4 The figure shows the circuit diagram of the microcontroller control unit. Since the defibrillator electrode circuit requires a small size and low power consumption, and the defibrillator electrode is a consumable accessory of the host, the hardware cost requirement is low. Therefore, the microcontroller STM32G031 is selected as the controller. It has an internal RC oscillator to provide the operating clock. The reset circuit uses resistors R3 and C3 for power-on reset. The program download and debugging use the SWD interface of the microcontroller itself. The microcontroller is powered by the 3.3V power supply provided by the host. Capacitors C4 and C2 act as energy storage filters.

[0045] like Figure 5As shown, the input function of the single-chip control unit is used to detect the mode switching switch 6, and the mode switching switch 6 includes a switch SW1 with 4 contacts, wherein contacts 1 and 2 are both grounded; and contact 3 is sequentially connected to the first node, the second node, the third node and the resistor R7.

[0046] The resistor R7 is connected to the AC KEY of the single-chip microcomputer control unit. The first node is connected to the contact 4; the second node is connected to the diode D3, and the other end of the diode D3 is grounded; the third node is respectively connected to the capacitor C1 and the resistor R6, wherein the capacitor C1 is grounded, and the resistor R6 is connected to a 3.3V power supply. D3 is a bidirectional TVS tube, which is used for the electrostatic protection of the key switch, the resistors R6 and C1 are for key debounce to prevent false triggering operations, and the resistor R7 plays the role of current limiting to protect the GPIO port of the single-chip microcomputer.

[0047] When the mode switching switch 6 is pressed, the GPIO port of the single-chip control unit detects a low level state, which indicates that the patient mode has changed. The single-chip control unit records the change state. If the previous state is adult mode, the current state is child mode.

[0048] like Figure 6 As shown, the GPIO port output function of the single-chip control unit is used to control the on and off status of the indicator light, wherein the light-emitting diode D1 is the adult indicator light, the light-emitting diode D2 is the child indicator light, and the resistors R1 and R2 are current limiting protection resistors.

[0049] When the single-chip control unit records that the current state is adult mode, the adult indicator light is controlled to be on and the child indicator light is off. Conversely, when the current state is child mode, the child indicator light is controlled to be on and the adult indicator light is off. Specifically, the indicator light is a green LED. The indicator light serves as feedback triggered by the key operation to prompt the operator.

[0050] like Figure 7 The multifunctional communication interface 3 shown in the figure, wherein the first interface provides 3.3V power supply for the single-chip microcomputer, and the second interface realizes the data communication function, using the serial port of the single-chip microcomputer control unit as a way to communicate with the defibrillator host. In addition, the defibrillator electrode's own software upgrade, the writing of the production process configuration information, and the defibrillator electrode finished product function inspection can also be realized through the data communication function.

[0051] A dual-mode defibrillation electrode of this embodiment, when used, includes the following steps: Connect the power supply to power on the defibrillation electrode circuit board 2 and the single-chip microcomputer control unit.

[0052] The single-chip control unit is connected to the defibrillator through the multifunctional communication interface 3; the single-chip control unit sends electrode sheet status information to the defibrillator through the multifunctional communication interface 3, and the electrode sheet status information includes the type of defibrillation electrode, the production date of the defibrillation electrode, the validity period of the defibrillation electrode, the batch number of the defibrillation electrode, and the UDI code of the defibrillation electrode. The type information of the defibrillation electrode identified by the defibrillator can avoid misusing other types of electrodes other than the dual-mode defibrillation electrode of the present invention to cause operational errors. The production date and validity period information of the defibrillation electrode identified by the defibrillator can identify whether the defibrillator is expired, and avoid the failure of the defibrillation electrode caused by expiration.

[0053] The single chip control unit reads the pressed state of the mode switching switch 6; the mode at this time is displayed through the mode indicator light 7 and the defibrillation electrode surface sticker 5; When the pressed state of the mode switch 6 is switched, the mode switch 6 is pressed, and the state change of the mode switch 6 is detected by the single-chip control unit; specifically, the state change of the low level and the high level is detected by the GPIO port of the single-chip control unit. If the previous state is the adult mode, the current state is the child mode. If the previous state is the child mode, the current state is the adult mode.

[0054] The single chip control unit controls the mode indicator light 7 to switch the display mode.

[0055] Example 3 In this embodiment, the electrode sheet type is encoded using hexadecimal numbers, wherein the adult mode is encoded as 0xB1 and the child mode is encoded as 0xB2. The upper 4 bits of the hexadecimal number represent the configuration parameter of the patient mode, and the lower 4 bits represent the mode state currently selected by the electrode sheet.

[0056] The remaining configuration parameters include: production date, expiration date, batch number, and UDI code, which are also written into the Flash of the microcontroller control unit using hexadecimal encoding.

[0057] like Figure 8 The software operation flow chart of the single-chip microcomputer is shown. When the defibrillation electrodes are connected to the defibrillator host, the single-chip microcomputer control unit is powered on to perform initialization operations, read the configuration parameters stored in the internal Flash of the single-chip microcomputer control unit, and send them to the defibrillator host through serial communication. The single-chip microcomputer control unit polls the mode switch 6, records the current patient mode status, and controls the corresponding patient mode indicator light 7 to turn on or off.

[0058] Example 4 A dual-mode defibrillator electrode is used for an automatic external defibrillator. The defibrillator electrode is connected to the defibrillator host using a multi-functional communication wired interface. The data information of the defibrillator electrode (including the defibrillator electrode type, production date, expiration date, batch number, and UDI code) is uploaded to the cloud platform management system through the wireless communication module of the defibrillator host, thereby completing the effective management and quality traceability of the defibrillator electrode.

[0059] Unless otherwise specified, the device elements involved in the above embodiments are all conventional device elements, and the structural settings, working modes or control modes involved are all conventional settings, working modes or control modes in the art unless otherwise specified.

[0060] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Other modifications or equivalent substitutions made to the technical solution of the present invention by ordinary technicians in the field should be included in the scope of the claims of the present invention as long as they do not depart from the spirit and scope of the technical solution of the present invention.

Claims

1. A dual-mode defibrillation electrode, characterized in that: include: A defibrillation electrode circuit board (2) and a defibrillation discharge interface (4); the defibrillation electrode circuit board (2) is connected to a multifunctional communication interface (3), a mode switching switch (6) and a mode indicator light (7); a single-chip microcomputer control unit is integrated in the defibrillation electrode circuit board (2); an interface of the multifunctional communication interface (3) is electrically connected to the single-chip microcomputer control unit; the mode switching switch (6) is electrically connected to the single-chip microcomputer control unit; and the mode indicator light (7) is electrically connected to the single-chip microcomputer control unit.

2. A dual-mode defibrillation electrode according to claim 1, characterized in that: The mode indicator light (7) comprises a first mode indicator light (71) and a second mode indicator light (72).

3. A dual-mode defibrillation electrode according to claim 1, characterized in that: An injection molded structural housing (1) is arranged outside the defibrillation electrode circuit board (2).

4. A dual-mode defibrillation electrode according to claim 3, characterized in that: A defibrillation electrode surface sticker (5) is arranged on the top of the injection molded structural shell (1), and the multifunctional communication interface (3) and the defibrillation discharge interface (4) are both arranged on the bottom of the injection molded structural shell (1).

5. A dual-mode defibrillation electrode according to claim 1, characterized in that: The mode switching switch (6) and the mode indicator light (7) are both connected to the GPIO port of the single-chip microcomputer control unit.

6. A dual-mode defibrillation electrode according to claim 1, characterized in that: The defibrillator electrode surface sticker (5) comprises a mode switching switch icon and silk-screen words corresponding to the mode.

7. A dual-mode defibrillation electrode according to claim 1, characterized in that: The single chip microcomputer control unit adopts an STM32G031 controller.

8. A dual-mode defibrillation electrode according to claim 1, characterized in that: The single chip control unit stores information on the defibrillation electrode type, production date, expiration date, batch number, and UDI code.

9. A dual-mode defibrillation electrode according to claim 1, characterized in that: The mode switching switch (6) is a four-pin push button switch.

10. A mode switching method for a dual-mode defibrillation electrode according to any one of claims 1 to 9, characterized in that: The following steps are involved: S1: connecting a power source to power on the defibrillator electrode circuit board (2) and the single-chip control unit; connecting with the defibrillator via the multifunctional communication interface (3); the single-chip control unit sends electrode pad status information to the defibrillator via the multifunctional communication interface (3); S2: reading the pressing state of the mode switching switch (6) through the single-chip control unit; and displaying the current mode through the mode indicator light (7); S3: Switching the pressed state of the mode switching switch (6), detecting the change of the state of the mode switching switch (6) by means of the single-chip control unit; and controlling the mode indicator light (7) to switch the display mode by means of the single-chip control unit.

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