Medical equipment supporting quick restart

Abstract

According to the medical equipment supporting rapid restart, the working principle of a Hall circuit is utilized, the output of an OUT pin is 3.3 V during normal work, the output of the OUT pin is 0V when a magnet is close to a Hall switch U2, and a signal output by the OUT pin of the Hall switch is sent to a ResetS pin of an equipment main control chip U1, so that the equipment main control chip U1 is guided to be restarted. A restart button does not need to be arranged on a shell of the medical equipment, and equipment restart caused by misoperation of a user is avoided. When the equipment needs to be restarted, only the restarting magnet needs to be close to the equipment, the shell of the equipment does not need to be disassembled, operation is easy, and execution efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of medical devices, and particularly relates to a medical device supporting rapid restart. Background Art

[0002] For some devices with long-term operation, such as some small portable electrocardiogram recorders, they collect users' electrocardiogram data in real time and transmit it to the APP on the mobile phone via Bluetooth. Since users carry them around, for the convenience of carrying, the instrument itself is very small, and for reasons such as waterproofing, the instrument shell is integrally injection-molded. In order to avoid misoperation by users during long-term use and to make the device appearance more concise, many small electrocardiogram recorders do not have a restart button on the device body. However, the device may also encounter problems such as failures or freezes during long-term operation. Since users cannot operate the restart or reset of the device by themselves, maintenance personnel must perform maintenance at this time. And because there is no restart button set, it is necessary to restart the device after disassembling the device, but because the device shell is integrally injection-molded, the repair is very difficult, with low efficiency and high cost. Content of the Utility Model

[0003] In order to solve the problem that it is difficult to repair a medical device without a restart button when it needs to be restarted, the utility model provides a medical device supporting rapid restart, which can restart the device from the outside without disassembling the device shell, improving the repair efficiency.

[0004] The technical solution of the utility model is as follows: A medical device supporting rapid restart, characterized in that it includes: a device main control chip U1 and a magnetic switch reset circuit; the magnetic switch reset circuit includes: a Hall switch U2, capacitors C1 and C2, and a resistor R1;

[0005] The Hall switch U2 is arranged at a position adjacent to the shell in the device;

[0006] One end of the capacitor C1 is grounded, and the other end is connected to the power supply VCC. The VDD pin of the Hall switch U2 is connected to the power supply VCC, the GND pin of the Hall switch U2 is grounded, and the output of the OUT pin of the Hall switch U2 is sent to the Reset_S pin of the device main control chip U1;

[0007] One end of the capacitor C2 is grounded, and the other end is connected to one end of the resistor R1 and the Reset_S pin of the device main control chip;

[0008] The other end of the resistor R1 is grounded.

[0009] It is further characterized in that:

[0010] It also includes: an anti-accidental circuit, and the anti-accidental circuit includes: an MCU chip U3, which is implemented based on HC32L110CPA; the MCU chip U3 is arranged between the Hall switch U2 and the device main control chip U1;

[0011] The OUT pin of the Hall switch U2 is connected to the 13th pin of the MCU chip U3;

[0012] The output of the 10th pin of the MCU chip U3 is sent to the Reset_S pin of the device main control chip U1;

[0013] It also includes: the peripheral circuit of the MCU chip U3, and the peripheral circuit of the MCU chip U3 includes: resistor R2, capacitors C3 and C4

[0014] The 4th pin of the MCU chip U3 is connected to one end of the capacitor C3, and the other end of the capacitor C3 is grounded;

[0015] The 10th pin of the MCU chip U3 is connected to one end of the resistor R2, and the other end of the resistor R2 is connected to the Reset_S pin of the device main control chip U1;

[0016] The 8th pin of the MCU chip U3 is connected to one end of the capacitor C4, and the 7th pin of the MCU chip U3 is connected to the other end of the capacitor C4 and then grounded;

[0017] It also includes: a restart magnet, and the magnetism of the restart magnet is strong enough to penetrate the device housing.

[0018] A medical device supporting fast restart provided by the present application utilizes the working principle of the Hall circuit: when working normally, the output of the OUT pin is 3.3V. When a magnet approaches the Hall switch U2, the output of the OUT pin is 0V. Sending the signal output by the OUT pin of the Hall switch to the Reset_S pin of the device main control chip U1 will cause the device main control chip U1 to restart. There is no need to set a restart button on the housing of the medical device, and device restart caused by user's accidental operation can be avoided. When the device needs to be restarted, only need to bring the restart magnet close to the device, without opening the device housing, the operation is simple and the execution efficiency is high. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic structural diagram example of a medical device supporting fast restart;

[0020] Figure 2 It is a magnetic switch reset circuit example 1;

[0021] Figure 3 It is a magnetic switch reset circuit example 2. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0022] As Figure 1 shown, it is an embodiment of the present application in a portable electrocardiogram recorder. The portable electrocardiogram recorder includes an integrally injection-molded housing 1, a main control chip 1 and a magnetic switch reset circuit 2 are arranged inside the housing 1, and an electrode patch 4 is attached to the user's body. The housing 1 is adhered to the outside of the electrode patch 4 through an adhesive sticker 5 to ensure that the user can carry the electrocardiogram recorder with them. Among them, the magnetic switch reset circuit 2 is arranged in a position adjacent to the housing 1. The restart magnet 6 can act on the Hall switch U2 in the magnetic switch reset circuit 2 within a range of about 5 mm to 10 mm. This can also prevent the electrocardiogram recorder from restarting due to accidental contact with magnetic substances in daily life.

[0023] The present application includes a medical device supporting fast restart, which includes: a device main control chip U1 and a magnetic switch reset circuit; the magnetic switch reset circuit is as Figure 2 shown, and includes: a Hall switch U2, capacitors C1 and C2, and a resistor R1. Figure 1 In the shown embodiment, the chip U1 is implemented based on the low-power MCU chip HC32L136K8TA. The Hall switch U2 is implemented based on the low-power magnetic switch sensor TMR1302S.

[0024] The external power supply uses a battery or direct current. The connector A3 is the input end of the power supply to connect the power supply. After the 3V - 5V power supply is input, it is filtered by the capacitors C11 and C12, and then regulated by U4 implemented based on the voltage regulator chip TPS73633 to output 3.3V VCC to supply power to other chips in the device. Sampling of the input power supply is realized based on the resistors R23 and R24.

[0025] The Hall switch U2 is arranged at a position adjacent to the housing in the device. The preset restart magnet has a magnetic property strong enough to penetrate the device housing. Ensure that the magnetic property can pass through the housing and act on the Hall switch U2.

[0026] One end of the capacitor C1 is grounded, and the other end is connected to the power supply VCC. The VDD pin of the Hall switch U2 is connected to the power supply VCC, the GND pin of the Hall switch U2 is grounded, and the OUT pin output of the Hall switch U2 is sent to the Reset_S pin of the device main control chip U1;

[0027] One end of the capacitor C2 is grounded, and the other end is connected to one end of the resistor R1 and the Reset_S pin of the device main control chip; the other end of the resistor R1 is grounded.

[0028] Based on Figure 2 the reset control method of the medical device implemented by the shown reset circuit includes the following steps.

[0029] S1: Arrange the magnetic switch reset circuit at a position adjacent to the housing in the device;

[0030] When working normally, the OUT pin of the Hall switch outputs a high level of 3.3V;

[0031] S2: When it is necessary to reset and restart the device, use the restart magnet to approach the position where the Hall switch is located in the device;

[0032] S3: The output of the OUT pin of the Hall switch becomes 0V and is sent to the Reset_S pin of the main control chip U1 of the device; Figure 2 and 3 In the embodiment of, the Reset_S pin of the main control chip U1 of the device is the 7th pin;

[0033] Make the output level of RESET_S also become low level to realize reset and restart the main control chip U1 of the device.

[0034] Usually in use, users will carry the device close to their body, and the probability of users contacting high-magnetic objects in daily life is very small. However, in order to more strictly ensure that the device will not be accidentally restarted, in actual applications, some methods can also be used to prevent accidental triggering of the Hall switch. For example, the housing 1 of the device is installed with a material having better magnetic isolation, and at the same time, the restart magnet 6 is set as a high-magnetic magnet. But this will increase the overall production cost of the device. Therefore, in this embodiment, by setting the MCU chip U3, the manufacturer is supported to set the judgment conditions through programming from the hardware. This can not only control the overall cost but also prevent accidental triggering of the Hall switch.

[0035] The MCU chip U3 is implemented based on HC32L110CPA; the MCU chip U3 is set between the Hall switch U2 and the main control chip U1 of the device; the peripheral circuit of the MCU chip U3 includes: resistor R2, capacitors C3 and C4.

[0036] The OUT pin of the Hall switch U2 is connected to the 13th pin of the MCU chip U3; the 4th pin of the MCU chip U3 is connected to one end of the capacitor C3, and the other end of the capacitor C3 is grounded; the 10th pin of the MCU chip U3 is connected to one end of the resistor R2, and the other end of the resistor R2 is connected to the Reset_S pin of the main control chip U1 of the device; the 8th pin of the MCU chip U3 is connected to one end of the capacitor C4, and the 7th pin of the MCU chip U3 is connected to the other end of the capacitor C4 and then grounded.

[0037] Based on the MCU chip U3, the implemented anti-accident circuit has the following working steps:

[0038] a1: Add an MCU chip U3 implemented based on HC32L110CPA between the Hall switch U2 and the main control chip U1 in the magnetic switch reset circuit; make the output of the OUT pin of the Hall switch U2 pass through the MCU chip U3 and then be sent to the main control chip U1;

[0039] a2: Based on the MCU chip U3, set the counting method:

[0040] When a pulse change is detected at pin 12 of the MCU chip U3, the MCU chip U3 counts once.

[0041] a3: Set the control condition; in this embodiment, the control condition is set to: three pulse changes can be detected within 5 seconds.

[0042] That is, count the number of times and the time; if three pulse changes can be detected within 5 seconds, the MCU chip U3 controls pin 10 and outputs a low level for 2 seconds to the Reset_S pin of the device main control chip U1.

[0043] The specific counting method and the implementation method of the control condition are realized based on the R & D technology of the HC32L110CPA chip in the prior art. Of course, according to specific needs, the control condition can also be set to any mode supported by the HC32L110CPA chip, such as setting the low-level output time of the Hall switch U2 to last more than 4 seconds and other conditions.

[0044] After using the technical solution of this application, the restart magnet will be provided to the user along with the device instrument. Once the device freezes or fails, it is convenient for the user to quickly solve the problem by themselves.

Claims

1. A medical device supporting fast restart, characterized in that, It includes: The device main control chip U1 and the magnetic switch reset circuit; the magnetic switch reset circuit includes: Hall switch U2, capacitors C1 and C2, and resistor R1; The Hall switch U2 is arranged at a position adjacent to the outer shell in the device; One end of the capacitor C1 is grounded, and the other end is connected to the power supply VCC. The VDD pin of the Hall switch U2 is connected to the power supply VCC, the GND pin of the Hall switch U2 is grounded, and the output of the OUT pin of the Hall switch U2 is sent to the Reset_S pin of the device main control chip U1; One end of the capacitor C2 is grounded, and the other end is connected to one end of the resistor R1 and the Reset_S pin of the device main control chip; The other end of the resistor R1 is grounded.

2. The medical device supporting fast restart according to claim 1, wherein: It further includes: an anti-accident circuit, the anti-accident circuit includes: MCU chip U3, and the MCU chip U3 is implemented based on HC32L110CPA; the MCU chip U3 is arranged between the Hall switch U2 and the device main control chip U1; The OUT pin of the Hall switch U2 is connected to pin 13 of the MCU chip U3; The output of pin 10 of the MCU chip U3 is sent to the Reset_S pin of the device main control chip U1.

3. The medical device supporting fast restart according to claim 2, characterized in that: It further includes: the peripheral circuit of the MCU chip U3, and the peripheral circuit of the MCU chip U3 includes: resistor R2, capacitors C3 and C4, Pin 4 of the MCU chip U3 is connected to one end of the capacitor C3, and the other end of the capacitor C3 is grounded; Pin 10 of the MCU chip U3 is connected to one end of the resistor R2, and the other end of the resistor R2 is connected to the Reset_S pin of the device main control chip U1; Pin 8 of the MCU chip U3 is connected to one end of the capacitor C4, and pin 7 of the MCU chip U3 is connected to the other end of the capacitor C4 and then grounded.

4. The medical device supporting fast restart according to claim 1, wherein: It further includes: a restart magnet, and the magnetism of the restart magnet is strong enough to penetrate the device outer shell.

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