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Do You Know What Medical Device PCBA Application Products Are?

2024-04-21

With the continuous development of medical technology, medical electronic equipment is becoming more and more popular. Among them, printed circuit boards play a key role in medical electronic equipment. However, do you know what medical device PCBA application products are? This article will unveil this mystery for you and give you an in-depth understanding of the specific applications of circuit boards for medical electronic equipment.

1. Medical Imaging Equipment  

Used to diagnose, treat and monitor disease. PCBA boards play a key role in medical imaging equipment, which controls imaging processes, signal processing, data transmission and other functions. PCBA design scheme and manufacturing quality directly affect the performance and reliability of the equipment, so it is strictly controlled in the medical device industry.  The following are the main application products of PCB assembly circuit boards in medical imaging equipment:


● X-ray machine (X-ray)

● CT scanner (Computed Tomography)

● MRI imaging equipment (Magnetic Resonance Imaging)

● Ultrasound imaging equipment

2. Pacemaker and Rhythm Manager

In pacemakers and rhythm managers, the PCBA design and manufacturing quality are crucial because they are directly related to the device's therapeutic efficacy and patient safety. PCBA must have high reliability, low power consumption, and good durability to comply with the high standards of supervision of medical equipment.

● Control unit: PCB assembly board is used to control the operation of the pacemaker and heart rhythm manager. It includes components such as processors, memory, and clocks to perform various device functions, such as rhythm monitoring, data processing, and stimulation control.

● Sensor interface: Connect to the heart sensor through PCBA to detect the heart's rhythm and heartbeat, and transmit the data to the control unit for analysis and processing to monitor the heart's electrical signals.

● Stimulation output: When the device detects an abnormal heart rhythm, the PCBA will trigger the stimulation current to restore the normal rhythm of the heart. This involves high-precision circuit design and control to ensure that electrical stimulation is safe and effective for patients.

● Power management: circuit board is responsible for managing the power supply of the device to ensure that the device maintains a stable power supply for a sustained period of time. This includes features such as battery management, charging control and energy efficiency optimization.

● Communication module: PCBA is responsible for managing the interface and protocol for communication between the device and the outside, allowing medical staff to remotely monitor the operating status of the device and the patient's heart health.

3. Defibrillator

Defibrillators are often used in emergency scenarios, so PCBA must have high reliability, fast response, and stability.


● PCB assembly board assumes the core control functions of the defibrillator. It includes a processor, memory, and control algorithms that monitor heart rhythm and release electrical energy when needed to restore the heart's normal rhythm.

● Electric energy storage and release: Efficient circuit design and precise PCBA control. When the defibrillator detects a severe arrhythmia, the PCBA releases electric energy to the heart to restore normal heartbeat rhythm.

● Sensor interface: PCBA is connected to the heart sensor to monitor the occurrence of arrhythmia. The sensor detects the heart's electrical signals and transmits the data to the control unit for analysis and processing.

● Power management: PCB assembly is responsible for managing the power supply of the defibrillator to ensure that the device can provide sufficient power when needed.

● Display and user interface: Some defibrillators are equipped with a display and user interface to display device status and operating interface. The circuit board manufacturing is responsible for managing the display screen and user input devices such as buttons or touch screens.

PCB assembly in medical device application

4. Ventilators and Artificial Respiration Equipment

PCB assembly is responsible for controlling the operation of ventilators and artificial respiration equipment. It includes a processor, control algorithms, and interface circuitry to monitor the patient's breathing and adjust the device's working mode.

The circuit board assembly is connected to respiratory system sensors and is used to monitor parameters such as the patient's respiratory rate, tidal volume, and oxygen concentration. The sensors transmit data to the control unit so that the ventilator settings can be adjusted as needed.

At the same time, the PCBA is responsible for managing the alarm system to monitor the status of the equipment and patients and issue alarms when abnormal conditions occur. This helps medical staff take timely action and ensure patient safety.

5. Medical Testing Instruments

In medical testing instruments (such as blood oximeters, electrocardiographs, heart rate meters, etc.), PCB assembly undertakes many important tasks. PCBA manufacturing quality directly affect the performance, accuracy, and reliability of the instrument. Therefore, in the medical field, strict requirements for PCB assembly quality control and manufacturing processes are particularly important to ensure that medical testing instruments can provide accurate, stable, and reliable test results, thereby providing effective support for the medical diagnosis and treatment process. 


● Signal processing and control

The PCB assembly is responsible for receiving data signals from the sensor, and processing and decoding them to generate readable detection results. The control unit is usually integrated in the PCB assembly and is used to control various parts of the instrument, such as switches, parameter settings, and function selection.

● Sensor interface

The PCB assembly is connected to various sensors, such as blood oxygen sensors, ECG sensors, and heart rate sensors, for receiving and converting biological signals from the patient. PCB assembly layout must fully consider the characteristics of the sensor and the stability of signal transmission to ensure accurate detection results.

● Power management

The PCB assembly is responsible for managing the instrument's power system, including battery management, charging control, and power conversion. For portable medical testing instruments, the effectiveness of power management directly affects the usage time and portability of the equipment.

● Data processing and storage

The PCBA  assumes the task of processing and storing the raw data received from the sensor, as well as the function of displaying the processed data on the instrument's screen or outputting it to an external device. This includes processing steps such as data filtering, signal amplification, digital conversion, and data compression to ensure accurate, stable, and high-quality data output.

● Communication function

Some medical testing instruments may be equipped with communication modules that allow the device to communicate with other medical devices or cloud platforms to achieve remote monitoring and data storage. The PCB assembly is responsible for managing the interface and data transmission of the communication module to ensure reliable connection with external systems.

6. Rehabilitation Equipment

In rehabilitation equipment, Including electric wheelchairs, orthotics, etc., the printed circuit board is particularly important to ensure that the rehabilitation equipment can provide stable, reliable, and efficient rehabilitation support and help users better restore health and life functions.


●Control system

PCB assembly assumes the core functions of the control system of rehabilitation equipment, including controlling the operation of motors, actuators, and other key components. It integrates control algorithms, sensor interfaces, and actuator drive circuits to ensure the stability and reliability of rehabilitation equipment.

● Power management

PCB assembly is responsible for managing the power system of rehabilitation equipment, including battery management, charging control, and power conversion. For portable rehabilitation equipment such as electric wheelchairs, the effectiveness of power management directly affects the usage time and performance of the equipment.

● Sensor interface

The PCB assembly is connected to various sensors such as posture sensors, pressure sensors, and speed sensors to monitor the user's movements and environmental status. The data provided by these sensors is used to control the movement and operation of rehabilitation equipment, such as adjusting the speed and direction of an electric wheelchair.

● User interface

The circuit board integrates interfaces for user interaction, such as buttons, displays, and sound prompts. The user interface provides a way to control the functions and parameter settings of the rehabilitation equipment, so the PCB assembly must ensure the responsiveness and ease of use of the interface.

● Communication function

Some rehabilitation equipment may be equipped with communication modules that allow the equipment to communicate with other smart devices or cloud platforms to achieve remote monitoring and data analysis. PCBA is responsible for managing the interface and data transmission of the communication module to ensure reliable connection with external systems.

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