How to improve the accuracy and stability of surgical bone drills through Coreless Motors

 

Surgical bone drills are essential tools in orthopedic surgery, mainly used for drilling, sampling and positioning. Its core function is to drive the rotating drill bit through a motor to process bones in a precise manner. It is widely used in fracture repair, joint surgery and minimally invasive surgery. In order to ensure the safety and accuracy of the operation, surgical bone drills require motors with high speed, low vibration and precise control.

 

The motor drives the bone drill bit to rotate, generating cutting force through rotation. During the drilling process, the motor speed and torque need to be precisely controlled to avoid damaging surrounding tissues.

 

 

Coreless Motor is an ideal choice for surgical bone drills due to its ironless design. The application of coreless motors brings several advantages to surgical bone drills:

 

Precise control: The coreless design of the coreless motor eliminates hysteresis loss, making control more precise. The speed and torque of the drill can be precisely adjusted to ensure high precision in surgical operations.

 

Lightweight: Since there is no iron core, the Coreless Motor is smaller in size and lighter in weight, which is suitable for surgical bone drills that need to be handheld. It reduces the doctor's operating burden and enhances flexibility.

 

Low Noise and Vibration: Coreless motors operate with very low noise and vibration, making them ideal for medical environments. This helps reduce patient discomfort while providing a more stable surgical experience.

 

High speed and high efficiency: The coreless motor can provide high speed and high efficiency without increasing power consumption, which is particularly suitable for operations that require high-speed drilling.

 

 

In surgical operations, especially orthopedic operations, surgical drills need to meet a series of stringent requirements. The following are several major requirements for motors in surgical drills, and the performance of Coreless Motors and traditional motors is compared in these requirements:

 

1. High precision and adjustable control

Surgical drill requirements: One of the core requirements for surgical drills is the ability to achieve precise control. The motor needs to provide stable speed and torque to ensure that the drill bit is operated accurately and avoid causing additional damage to the patient's bone tissue.

 

Coreless motor: The coreless design of the coreless motor avoids the hysteresis loss of traditional motors and provides extremely precise and stable speed control. Its high-precision control characteristics are very suitable for bone drilling operations that require micron-level accuracy.

 

Traditional motors (such as brushed or brushless DC motors): Although brushless DC motors have acceptable accuracy, the fluctuation of their speed and torque is slightly greater than that of coreless motors, making it difficult to achieve higher-precision fine-tuning. Especially for brushed motors, due to the friction between the brushes and the commutator, the accuracy control is more complicated and easily affects the operational stability.

 

2. Lightness and ease of operation

Surgical drill requirements: Surgeons need to hold the drill for a long time, and the weight and size of the drill directly affect the comfort and flexibility of the operation. Especially in minimally invasive surgery, the operating accuracy has a higher requirement for lightness.

 

Coreless motor: Due to its coreless design, the coreless motor is small and light. It is very suitable for surgical drills that require long-term, handheld operation, reducing the burden on doctors and improving surgical flexibility and operating precision.

 

Traditional motors: Traditional motors, especially brushed motors, are usually heavy and large in size, which may cause operational inconvenience during surgery, increase the burden on doctors, and limit the flexibility of surgical instruments.

 

3. Low noise and low vibration

Surgical drill requirements: During surgical operations, especially delicate operations, the noise and vibration of the drill have a direct impact on the doctor's operating stability and the patient's comfort. Lower noise and vibration can improve the success rate of the operation and reduce the patient's anxiety.

 

Coreless motor: Coreless motors have almost no friction, very low noise and vibration due to their ironless design and efficient working principle, which is especially important for surgical drills. It can provide a stable and precise operating experience in a non-interference environment.

 

Traditional motor: The friction between the brushes and the commutator of the brushed motor will produce loud noise and vibration, which may cause discomfort during surgery, affect the doctor's concentration, and may affect the accuracy of the surgery.

 

4. High speed and continuous performance

Surgical drill requirements: Surgical drills need to operate continuously and stably at a high speed to complete drilling operations quickly and smoothly. The motor must be able to withstand long-term high-speed operation and maintain stable output.

 

Coreless motor: Coreless motors are able to run at higher speeds while maintaining high efficiency and low heat generation. Since there are no brushes, coreless motors can maintain more stable performance at high speeds and are suitable for long-term high-speed operation.

Traditional motors: Brushed motors are prone to overheating when running at high speed for a long time, resulting in reduced motor performance. Although brushless motors can improve this problem to a certain extent, they are still slightly inferior to coreless motors in high speed and continuous operation.

 

Due to its unique design, the coreless motor is significantly superior to traditional motors in terms of high precision, low noise, low vibration, lightness and long life, and is particularly suitable for surgical bone drills that have high requirements for operating accuracy and stability. Although traditional motors can also meet the needs of surgical electric drills to a certain extent, the advantages of the coreless motor make it a more ideal choice, especially in minimally invasive surgery and long-term surgical operations, which can significantly improve surgical efficiency and safety.

 

 

In the application of high-demand equipment such as surgical electric drills, VSD provides a series of high-performance Coreless Motors. With its excellent accuracy, stability and long life, it has become an ideal choice for the medical industry and high-precision tools. The following are several Coreless Motors specially optimized for precision tools such as surgical electric drills:

 

VEC-1218 Coreless Motor

The VEC-1218 coreless motor is a small and efficient motor designed for small power tools that require high precision and stability. Its 12mm motor diameter and short body length make it ideal for handheld devices, especially surgical drills, providing precise speed control and efficient torque output.

 

Advantages: The maximum efficiency speed of up to 24010 r/min ensures stable power output at low current, suitable for long-term use. The starting torque is up to 6.8 mN.m, which can start quickly and provide powerful drilling power.

 

Application: In surgical drills, the high efficiency and low power consumption of the VEC-1218 motor can effectively reduce the weight of surgical equipment while ensuring precise operation.

 

VEC-1336 Coreless Motor

The VEC-1336 is a 13mm diameter coreless motor suitable for precision tools that require higher speeds and greater torque output. The motor's high starting torque and high efficiency make it an ideal choice for demanding equipment such as surgical bone drills.

 

Advantages: The no-load speed is up to 42500 r/min, and it can provide an output power of 17.6W. The speed at maximum efficiency is 37204 r/min, and the torque output is 4.5 mN.m. The starting torque is as high as 36.3 mN.m, which can complete high-intensity work in a short time.

 

Application: The VEC-1336 motor is able to handle the high power demands in surgical drills, especially the requirements for fast and stable drilling during surgery.

 

VEC-16 Series Coreless Motors

The VEC-16 series includes a variety of specifications, especially suitable for surgical drills that require different power and speed. Whether it is 12V, 24V or 36V working voltage, the VEC-16 series can provide up to 34.2W output power and has stable speed and torque performance.

 

Advantages: The maximum output power is 34.2W, and the speed is up to 39200 r/min, which is suitable for high-speed drilling operations. Its Hall signal output design makes the motor more compatible and accurate in the control system.

 

Application: The VEC-16 series' multiple voltage options make it adaptable to the needs of different types of surgical drills, providing a more flexible solution, especially for applications that require high speed and high torque output.

 

VEC-32mm Series Coreless Motors (Double-Direction Bearings)

The VEC-32mm series motors are particularly suitable for high-precision tools that require greater power and stronger torque output, and are suitable for more complex surgical electric drilling tasks. Its efficient torque output and high durability meet the high power requirements while also ensuring the stability of the motor.

 

Advantages: For example, the EC3242 motor provides a maximum output power of 38.5W and a torque of up to 25 mN.m, making it suitable for orthopedic surgical drilling operations with heavier loads.

 

Application: VEC-32mm series motors are particularly suitable for surgical drills that require high torque and high output, especially in high-intensity operations such as drilling holes in hard bones, providing strong power and stable performance.

 

VSD's Coreless Motors are perfectly adapted to the needs of high-precision surgical equipment such as surgical bone drills with their excellent precision, stability and high efficiency. Whether it is a small and lightweight motor or a high-intensity application requiring higher power and torque, VSD's Coreless Motors can provide the best solution. Its ultra-low noise and low vibration characteristics make the operation more precise and the surgical process smoother, reducing the patient's postoperative discomfort and the doctor's operating fatigue.

 

 

Since its establishment in 2011, VSD has accumulated more than ten years of experience in micro motor R&D and manufacturing, becoming the preferred partner of many industries. We have a technologically advanced R&D team dedicated to continuously breaking through the bottleneck of motor technology and optimizing product performance.

 

Leading technology and strong production capacity

VSD's production base covers an area of more than 10,000 square meters, equipped with advanced assembly lines and automation equipment to ensure efficient and precise production. Every year, it can meet orders from customers of various sizes and needs, ensuring product quality and delivery time.

 

Flexible customization and global service

We focus on customized design, flexibly adjust motor characteristics according to customer needs, provide OEM and ODM services, and ensure that the product accurately matches your needs. VSD also provides global customers with comprehensive technical support and high-quality after-sales service to help you quickly enter the market.

 

Efficient response and fast delivery

We have efficient sample processing capabilities. Generally, brushed motors are produced within 7 days, and brushless motors are delivered within 15 to 25 days, ensuring that you get the products you need in the shortest time.

 

Choosing VSD will give you access to advanced technology, efficient production and global support. We will provide you with the best motor solutions.