Swing saw control system based on single chip microcomputer
By using a microcontroller-based control system and a trolley power supply and step-down module, the problems of frequent battery replacement and power depletion in medical oscillating saws are solved, thereby reducing doctor fatigue and improving surgical safety.
Patent Information
- Application Number
- CN202423179752.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-23
- Publication Date
- 2026-01-09
- Estimated Expiration
- 2034-12-23
AI Technical Summary
Existing medical oscillating saws are battery powered, which leads to frequent battery replacements, increases doctor fatigue, and may affect surgical safety if the battery is depleted.
The system employs a microcontroller-based control system, utilizing a trolley for power supply. A step-down module converts high voltage to low voltage, and the system is controlled by a microcontroller, a swing saw drive module, a communication module, and a host computer. This reduces battery replacements and improves safety and stability.
To reduce physician fatigue, improve surgical safety, avoid the impact of battery depletion, achieve boundary protection through upper computer control, reduce preoperative preparation work, and ensure stable power supply.
Smart Images

Figure CN223784646U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of electromechanical equipment, and in particular to a swing saw control system based on a microcontroller. Background Technology
[0002] A common drawback of current medical oscillating saws on the market is their battery power. In hospitals, the entire oscillating saw is sterilized, and the batteries also need to be removed and sterilized. Batteries need frequent replacements after each use, and doctors must hold the oscillating saw during operation. If this continues for extended periods, doctors are prone to fatigue and misalignment. Furthermore, if the oscillating saw's battery depletes during surgery, it can significantly impact the procedure.
[0003] In summary, a microcontroller-based oscillating saw control system is needed to address the shortcomings of existing technologies. Utility Model Content
[0004] To address the shortcomings of existing technologies, this invention provides a microcontroller-based oscillating saw control system, aiming to solve the aforementioned problems.
[0005] To achieve the above objectives, this utility model provides the following technical solution: a microcontroller-based oscillating saw control system, comprising a step-down module, a microcontroller, an oscillating saw drive module, a communication module, a host computer, and an oscillating saw;
[0006] A step-down module is used to convert high-voltage input to low-voltage to power the microcontroller and communication module.
[0007] The microcontroller is used to process and receive signals from the host computer and drive the output control signals of the swing saw.
[0008] The oscillating saw drive module is used to receive the oscillating saw control input signal and control the oscillating saw power output;
[0009] The communication module is used to receive signals from the host computer and send them to the microcontroller for processing.
[0010] The host computer is used to send control commands to the microcontroller according to the communication protocol;
[0011] An oscillating saw is used in medical surgery to cut bones or bone implants.
[0012] Optionally, the control system of the microcontroller includes a power supply circuit, a clock circuit, a reset circuit, a microcontroller U2, and a control filter circuit;
[0013] The power supply circuit is filtered by capacitors C2 and C3 and connected to the VDD pin of the microcontroller.
[0014] The clock circuit uses crystal oscillator Y2 and capacitors C7 and C9 to form the clock circuit. Crystal oscillator Y2 is connected to the pin of the microcontroller.
[0015] The reset circuit is connected to the NRST pin, which is controlled, via resistor R4 and capacitor C5.
[0016] The microcontroller U2 is used to process data and control other components;
[0017] The control filter circuit, including C4 and C10, is used for filtering and decoupling.
[0018] Optionally, the control system of the communication module includes a power supply circuit, a crystal oscillator circuit, a microcontroller U3, and a protection circuit;
[0019] The power supply circuit is filtered by capacitors C30 and C31 and then connected to the microcontroller U3.
[0020] The crystal oscillator circuit uses capacitors C26 and C29 to stabilize the oscillator frequency and provide a clock signal to enable the circuit to operate synchronously.
[0021] Microcontroller U3 is used for network TCP / IP communication;
[0022] The protection circuit protects the circuit from overvoltage damage through diode D2 and absorbs transient voltages through capacitors C30 and C31.
[0023] Optionally, the control system of the oscillating saw includes a control circuit and a drive circuit;
[0024] The control circuit includes resistors R1 and R2 and transistor Q1. Resistors R1 and R2 are used for voltage division and current limiting.
[0025] The drive circuit includes an IGBT module Q3 and a resistor R3. The IGBT module Q3 is used to drive the load, and the resistor R3 is used to provide the bias voltage.
[0026] Optionally, the control system of the buck module includes a buck filter circuit, a buck controller, a feedback circuit, and a diode D1;
[0027] A step-down filter circuit is used to filter out high-frequency noise in the voltage.
[0028] A step-down controller is used to control the step-down process, converting high voltage to low voltage;
[0029] Feedback circuit is used to adjust the resistance value and change the magnitude of the output voltage;
[0030] Diode D1 is used in inductors to prevent the circuit from burning out when the power supply to the circuit stops.
[0031] Optionally, the buck filter circuit includes an input filter circuit and an output filter circuit;
[0032] The input filter circuit includes capacitors C19-C22, which are used to filter out high-frequency noise in the input voltage;
[0033] The output filter circuit includes capacitors C16-C18, which are used to filter out high-frequency noise in the output voltage.
[0034] The beneficial effects of this utility model are:
[0035] 1. In this utility model, the fixed swing saw can reduce the doctor's operating fatigue, the trolley power supply eliminates the need for frequent battery replacements, the host computer control is used, and boundary protection is added during use, which greatly improves safety.
[0036] 2. In this utility model, the trolley is directly powered, which reduces the preoperative preparation work related to batteries and makes the power supply more stable.
[0037] 3. In this utility model, the host computer can control the protection when the swing saw exceeds the boundary, and the doctor can operate it without picking up the swing saw, thus avoiding fatigue. Attached Figure Description
[0038] Figure 1 This is a system structure diagram of the present invention.
[0039] Figure 2 This is a circuit diagram of a communication module according to the present invention.
[0040] Figure 3 This is a circuit diagram of a microcontroller according to the present invention.
[0041] Figure 4 This is a circuit diagram of a swing saw control according to the present invention.
[0042] Figure 5 This is a circuit diagram of a step-down module according to the present invention. Detailed Implementation
[0043] To more clearly illustrate the technical solutions in the embodiments of the invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0044] Refer to the instruction manual. Figure 1 -Appendix Figure 5 This technical solution will be described.
[0045] like Figures 1-5 As shown, a microcontroller-based oscillating saw control system includes a step-down module, a microcontroller, an oscillating saw drive module, a communication module, a host computer, and an oscillating saw;
[0046] A step-down module is used to convert high-voltage input to low-voltage to power the microcontroller and communication module.
[0047] The microcontroller is used to process and receive signals from the host computer and drive the output control signals of the swing saw.
[0048] The oscillating saw drive module is used to receive the oscillating saw control input signal and control the oscillating saw power output;
[0049] The communication module is used to receive signals from the host computer and send them to the microcontroller for processing.
[0050] The host computer is used to send control commands to the microcontroller according to the communication protocol;
[0051] An oscillating saw is used in medical surgery to cut bones or bone implants.
[0052] The control system of a microcontroller includes a power supply circuit, a clock circuit, a reset circuit, a microcontroller U2, and a control filter circuit;
[0053] The power supply circuit is filtered by capacitors C2 and C3 and connected to the VDD pin of the microcontroller.
[0054] The clock circuit uses crystal oscillator Y2 and capacitors C7 and C9 to form the clock circuit. Crystal oscillator Y2 is connected to the pin of the microcontroller.
[0055] The reset circuit is connected to the NRST pin, which is controlled, via resistor R4 and capacitor C5.
[0056] The microcontroller U2 is used to process data and control other components;
[0057] The control filter circuit, including C4 and C10, is used for filtering and decoupling.
[0058] The control system of the communication module includes a power supply circuit, a crystal oscillator circuit, a microcontroller U3, and a protection circuit.
[0059] The power supply circuit is filtered by capacitors C30 and C31 and then connected to the microcontroller U3.
[0060] The crystal oscillator circuit uses capacitors C26 and C29 to stabilize the oscillator frequency and provide a clock signal to enable the circuit to operate synchronously.
[0061] Microcontroller U3 is used for network TCP / IP communication;
[0062] The protection circuit protects the circuit from overvoltage damage through diode D2 and absorbs transient voltages through capacitors C30 and C31.
[0063] The control system of the oscillating saw includes a control circuit and a drive circuit.
[0064] The control circuit includes resistors R1 and R2 and transistor Q1. Resistors R1 and R2 are used for voltage division and current limiting.
[0065] The drive circuit includes an IGBT module Q3 and a resistor R3. The IGBT module Q3 is used to drive the load, and the resistor R3 is used to provide the bias voltage.
[0066] Control signal input:
[0067] When a control signal is input, the base voltage of transistor Q1 increases due to the voltage division by resistors R1 and R2, and Q1 turns on.
[0068] Transistor Q1 is turned on:
[0069] After Q1 is turned on, its collector current flows through resistor R3, which increases the gate voltage of IGBT module Q3, and Q3 is turned on.
[0070] IGBT module Q3 is turned on:
[0071] After Q3 is turned on, the 48V power supply flows to motor M1 through Q3, and the motor starts to work.
[0072] Control signal disconnected:
[0073] When the control signal is disconnected, the base voltage of Q1 decreases, Q1 is turned off, the gate voltage of Q3 decreases, Q3 is turned off, and the motor stops working.
[0074] The control system of the buck module includes a buck filter circuit, a buck controller, a feedback circuit, and diode D1;
[0075] A step-down filter circuit is used to filter out high-frequency noise in the voltage.
[0076] A step-down controller is used to control the step-down process, converting high voltage to low voltage;
[0077] Feedback circuit is used to adjust the resistance value and change the magnitude of the output voltage;
[0078] Diode D1 is used in inductors to prevent the circuit from burning out when the power supply to the circuit stops.
[0079] Optionally, the buck filter circuit includes an input filter circuit and an output filter circuit;
[0080] The input filter circuit includes capacitors C19-C22, which are used to filter out high-frequency noise in the input voltage;
[0081] The output filter circuit includes capacitors C16-C18, which are used to filter out high-frequency noise in the output voltage.
[0082] This invention reduces doctor fatigue through a fixed oscillating saw, eliminates the need for frequent battery changes by using a trolley-powered system, and employs a host computer for control. It also features boundary protection during use, significantly improving safety. Direct power supply from the trolley reduces pre-operative battery-related preparations and ensures a more stable power supply. The host computer can control the oscillating saw to prevent it from exceeding boundaries, allowing operation without picking it up and avoiding doctor fatigue.
[0083] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions or improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. A single-chip microcomputer-based oscillating saw control system, characterized in that, It includes a step-down module, a microcontroller, a oscillating saw drive module, a communication module, a host computer, and the oscillating saw; A step-down module is used to convert high-voltage input to low-voltage to power the microcontroller and communication module. The microcontroller is used to process and receive signals from the host computer and drive the output control signals of the swing saw. The oscillating saw drive module is used to receive the oscillating saw control input signal and control the oscillating saw power output; The communication module is used to receive signals from the host computer and send them to the microcontroller for processing. The host computer is used to send control commands to the microcontroller according to the communication protocol; An oscillating saw is used in medical surgery to cut bones or bone implants. The control system of the microcontroller includes a power supply circuit, a clock circuit, a reset circuit, a microcontroller U2, and a control filter circuit. The power supply circuit is filtered by capacitors C2 and C3 and connected to the VDD pin of the microcontroller. The clock circuit consists of crystal oscillator Y2 and capacitors C7 and C9. Crystal oscillator Y2 is connected to the pins of the microcontroller. The reset circuit is connected to the NRST pin, which is controlled, via resistor R4 and capacitor C5. The microcontroller U2 is used to process data and control other components; The control filter circuit, including C4 and C10, is used for filtering and decoupling.
2. The microcontroller-based oscillating saw control system according to claim 1, characterized in that, The control system of the communication module includes a power supply circuit, a crystal oscillator circuit, a microcontroller U3, and a protection circuit. The power supply circuit is filtered by capacitors C30 and C31 and then connected to the microcontroller U3. The crystal oscillator circuit uses capacitors C26 and C29 to stabilize the oscillator frequency and provide a clock signal to enable the circuit to operate synchronously. Microcontroller U3 is used for network TCP / IP communication; The protection circuit protects the circuit from overvoltage damage through diode D2 and absorbs transient voltages through capacitors C30 and C31.
3. The microcontroller-based oscillating saw control system according to claim 1, characterized in that, The control system of the oscillating saw includes a control circuit and a drive circuit. The control circuit includes resistors R1 and R2 and transistor Q1. Resistors R1 and R2 are used for voltage division and current limiting. The drive circuit includes an IGBT module Q3 and a resistor R3. The IGBT module Q3 is used to drive the load, and the resistor R3 is used to provide the bias voltage.
4. The oscillating saw control system based on a single-chip microcomputer according to claim 1, characterized in that, The control system of the buck module includes a buck filter circuit, a buck controller, a feedback circuit, and a diode D1; A step-down filter circuit is used to filter out high-frequency noise in the voltage. A step-down controller is used to control the step-down process, converting high voltage to low voltage; Feedback circuit is used to adjust the resistance value and change the magnitude of the output voltage; Diode D1 is used in inductors to prevent the circuit from burning out when the power supply to the circuit stops.
5. The microcontroller-based oscillating saw control system according to claim 4, characterized in that, The step-down filter circuit includes an input filter circuit and an output filter circuit; The input filter circuit includes capacitors C19-C22, which are used to filter out high-frequency noise in the input voltage; The output filter circuit includes capacitors C16-C18, which are used to filter out high-frequency noise in the output voltage.