Coreless motors: ideal for ROSA robot motor drive systems
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In the modern medical field, ROSA robots are widely used in neurosurgery and orthopedics as an advanced surgical aid to improve surgical accuracy and safety. One of the core technologies that supports its high-precision operation is the motor drive system. In particular, coreless motors, with their advantages of high response, low inertia and no cogging, can better meet the stringent requirements of surgical robots for stability and fine control compared to traditional motors. This article will explore the role of ROSA robots, the key role of motor drive systems, and how coreless motors can improve their performance.
ROSA robot: the future assistant for precision surgery
ROSA robot (Robotic Frameless Stereotactic Surgery Assist System) is a high-end medical device that integrates surgical planning, navigation functions and robot-assisted positioning operating system. It combines the concept of traditional stereotactic technology with modern computer technology, greatly improving the accuracy and safety of neurosurgery.
In terms of clinical application, ROSA is mainly used for the implantation of stereotactic electrodes in the brain. Through minimally invasive technology, electrodes are buried to help accurately locate epileptic lesions, making the treatment of epilepsy more precise. In addition, it is also used for the implantation of electrodes for functional neurosurgical diseases such as Parkinson's disease, dystonia, Tourette syndrome, chorea, and can assist surgical navigation systems and ventriculoscope surgery.
Before the advent of the ROSA robot, the localization of epileptic lesions mainly relied on scalp EEG, and later developed into intracranial electrode implantation, but patients needed to undergo craniotomy. Although the classic framed stereotactic technology has improved the accuracy of electrode implantation and reduced trauma and risks, it is still complicated to operate. The ROSA robot has completely revolutionized this process, making the surgery more efficient and precise.
ROSA's surgical process includes preoperative non-invasive examination and evaluation to determine the possible location of the epileptogenic focus, plan the electrode implantation path, and transmit MRI scan data to the ROSA system to design the optimal implantation plan. During the operation, ROSA scans the patient's head and matches it with the virtual three-dimensional image to accurately determine the electrode implantation position and direction, thereby ensuring the accuracy and safety of the operation.
ROSA robots have many advantages over traditional methods:
Higher safety: Use three-dimensional imaging technology to avoid important brain functional areas and areas with dense blood vessels, reducing surgical risks.
Minimally invasive surgery: No need to open the skull, only a small hole with a diameter of about 1 mm needs to be drilled on the skull to complete the implant, reducing the patient's pain.
Strong flexibility: The surgical path can be freely adjusted to adapt to the anatomical structure and lesion location of different patients.
Save surgical time: ROSA's robotic arm can automatically position itself according to the preoperative plan. Each electrode implant only takes 4 to 10 minutes, which saves more than 3 hours compared to traditional methods, significantly reducing patient trauma and intraoperative risks.
With these advantages, the ROSA robot has become an important innovative tool in the field of neurosurgery, providing more accurate and safer treatment options for patients with epilepsy, Parkinson's disease, etc.
The motor drive system is the core guarantee of the ROSA robot
In the field of neurosurgery, the ROSA robot uses minimally invasive surgical techniques to help doctors complete delicate intracranial electrode implants, providing accurate and safe treatment options for patients with functional neurological diseases such as epilepsy and Parkinson's. To complete such a difficult operation, the ROSA robot must rely on a powerful motor drive system to ensure its stability and accuracy.
The core task of the ROSA robot is to accurately locate the electrodes and implant them into the predetermined area within the millimeter or even micron level, while avoiding important nerves and blood vessels in the brain. To achieve this goal, the motor drive system must provide the following key guarantees:
1. High-precision control - In the narrow intracranial space, the ROSA robot must implant electrodes according to the preset trajectory, and the error cannot exceed the micron level, otherwise it may damage the patient's brain. The motor must have a precise position feedback system to ensure that each step of the operation is highly consistent with the preoperative plan.
2. Stable and jitter-free operation - Due to the high risk of brain surgery, the robot arm cannot have any extra vibration or jitter when adjusting its position or performing implantation, otherwise it will affect the implantation accuracy. The motor needs to have the ability to run smoothly at low speeds to avoid sudden speed fluctuations or torque changes.
3. Fast response and high dynamic performance - During the operation, ROSA needs to adjust the path at any time according to the intraoperative image and the doctor's instructions. This requires the motor system to respond quickly to the control signal and accurately perform small adjustments to ensure the precise matching of the implant angle and depth.
4. Low noise and low heat - Surgery requires the environment to be as quiet as possible so that doctors can focus on the operation. At the same time, during long operations, overheating of the motor may affect its performance stability. Therefore, ROSA needs to use a motor that runs quietly and has low temperature rise to ensure that the operation continues stably.
5. Compact and lightweight design - Since the robot arm needs to perform precise operations on the patient's head, its structure must be as compact as possible to avoid affecting operational flexibility due to excessive size or weight. The motor drive system should have high power density and lightweight design to reduce the burden on the robot arm while maintaining high performance.
Coreless motors: ideal for ROSA robot motor drive systems
Based on the above requirements, we can see that traditional motors (such as ordinary DC motors or traditional servo motors) have some natural defects, such as large inertia, low-speed jitter, cogging effect, high heat generation, etc., which may affect the surgical accuracy and stability of the ROSA robot. The characteristics of the coreless motor make it the most ideal solution for the ROSA robot motor drive system.
1. No cogging effect, smoother operation
The stator of a traditional motor is usually made of an iron core, which is prone to cogging when running at low speeds, causing the robot arm to shake during fine-tuning. The coreless motor uses an iron-coreless winding structure with a uniform magnetic field distribution, making it more stable during operation, and is particularly suitable for ROSA robots to avoid vibration interference during micron-level adjustments.
2. Low inertia, high speed response
The rotor of the coreless motor has no iron core, is lighter, and has an inertia several or even ten times lower than that of traditional motors. This enables the ROSA robot arm to start, stop, or adjust instantly, greatly improving operational sensitivity and path tracking accuracy, ensuring more precise surgical procedures.
3. High-precision control to ensure accurate electrode implantation
Since the Coreless Motor can be used in conjunction with a high-resolution encoder, its control accuracy can reach the micron level, greatly reducing errors and enabling the ROSA robot to accurately execute every instruction in complex neurosurgery to ensure the accuracy of the electrode implantation position.
4. Low noise and low heat generation, improving surgical stability
Traditional motors tend to generate a lot of noise and heat due to core loss and commutator friction. In contrast, the coreless motor uses an ironless design, which reduces eddy current loss and lowers temperature rise during operation. At the same time, the brushless structure reduces noise, which is more in line with the requirements of surgical operations for a quiet environment.
5. Small size and light weight, improving the flexibility of the robot arm
The coreless motor has a high power density and can provide sufficient driving force in a smaller volume, making the ROSA robot's robotic arm lighter and more flexible, allowing it to freely adjust the angle and position within a limited surgical space, further improving the flexibility and precision of the surgery.
Professional Coreless Motor manufacturer
precision and high safety in neurosurgery is inseparable from its powerful motor drive system. The motor must not only provide key guarantees such as precise positioning, smooth operation, fast response, low noise, and low heat generation, but also meet the requirements of compact and lightweight design. Among all motor types, the Coreless Motor has become the best drive solution for the ROSA robot with its unique advantages such as no cogging effect, low inertia, high-precision control, low noise and low heat generation, small size and light weight, ensuring the accuracy of surgery and the safety of patients.
So how to choose a Coreless Motor supplier that can meet the needs of high-end medical robots is also very important. With more than ten years of R&D and customization experience, VSD has become one of the leading Coreless Motor manufacturers in the industry, providing the best drive solutions for high-precision medical equipment.
With its profound technical accumulation and advanced manufacturing process, VSD ensures that the Coreless Motor has excellent precision and stability. The use of coreless winding technology enables the motor to achieve micron-level precision control, perfectly meeting the high-precision requirements of the ROSA robot in neurosurgery. In addition, we select high-conductivity copper wire, high-quality magnetic steel and high-durability bearings to ensure that the motor runs with low noise and low heat, and remains stable and reliable under long-term operation.
As a professional motor manufacturer, VSD has an internationally leading production line and a strict quality inspection system to ensure that each motor meets the high standards of the medical industry. We not only provide standardized products, but also provide customized solutions for different robot system requirements, including personalized optimization of motor size, voltage power, encoder integration, bearing structure, etc. VSD has passed ISO 9001 quality management system certification and has established cooperation with many medical robot manufacturers around the world. Its products are exported to Europe, America and Asia. It is a reliable choice for high-quality Coreless Motors.
VSD Coreless Motor Product Recommendation:
The VEC - 1630 Coreless Motor is suitable for high-speed, high-response applications. Its ultra-high speed and low inertia characteristics make it an ideal choice for robots, automation equipment and other fields. It has two specifications, supporting an operating voltage range of 814 V and 2226 V, providing high-efficiency output and being able to maintain stable operation in different needs. With its low-noise, non-cogging design, the motor provides a smooth operating experience and has customizable options such as speed, voltage and torque to adapt to various specific working environments.
The VEC - 1819 Coreless Motor has a compact design and is suitable for precision equipment that requires high efficiency and low noise. The motor supports multiple voltage options and has a no-load speed of up to 38233 r/min, making it suitable for high-speed, high-load applications. The design without cogging further reduces noise and vibration and enhances the stability of the motor. Whether it is automated machinery, drones, or other high-precision equipment, VEC - 1819 can provide fast response and high-efficiency performance, and is a key drive component in high-performance systems.
The VEC - 2855 Coreless Motor has excellent power density and is suitable for applications requiring fast response and high efficiency. The motor supports two voltage options (12 V and 24 V) and can provide up to 38.525 W of output power at maximum efficiency. The characteristics of low noise and low vibration ensure stability during long-term operation. Thanks to high-performance ball bearings and precision design, VEC-2855 shows excellent compatibility and reliability in robots, power tools and other precision equipment, and also supports customized services for specific needs.
VEC - 3269 Coreless Motor has excellent low noise and high efficiency characteristics, and is widely used in precision industrial equipment and high-performance robots. The motor supports 24 V voltage, provides a maximum torque of 42.08 mN.m, and an output power of up to 20.265 W. It is suitable for occasions requiring high precision and fast response. By adopting high-quality ball bearings, VEC-3269 can provide longer service life and lower vibration. In addition, the motor also supports customized services to meet the needs of different applications, such as output shaft, speed, bearings, etc.
The VEC - 1656SI coreless motor is an ideal choice for demanding precision applications with its fast response, high speed and low noise. It has a high starting torque and is suitable for applications that require large starting torque, such as high-performance power tools. The motor supports a wide voltage range, from 12 V to 32 V, providing continuous and efficient output. The VEC - 1656SI uses high-quality ball bearings to ensure long life and low vibration, and can be customized according to customer needs, such as speed, bearing type and interface method.
VEC - 1657 Coreless Motor is an efficient and stable motor suitable for various applications with high speed and high efficiency requirements. Its excellent starting torque and maximum speed performance are very suitable for precision equipment and high load applications. The motor supports two operating voltages of 814 V and 2232 V, with a maximum torque of 7.317 mN.m and an output power of up to 21.31 4W. Its low noise and low vibration characteristics ensure its long-term stable operation, and it supports comprehensive customization services, such as speed, voltage and interface design, to meet the special needs of different applications.
VEC - 20 Series Coreless Motors
The VEC - 20 series Coreless Motors excel in high efficiency and high stability, and are suitable for applications with high speed and precision control. Each model in the series offers different operating voltages and output parameters to meet different load requirements. Whether it is power tools, robots or other precision equipment, the VEC - 20 series can provide excellent power output and continuous efficient operation. Its low noise design and fine speed control enable it to maintain an efficient and quiet working environment in various types of equipment, and can be customized according to customer requirements.
VEC - 28 Series Coreless Motors
VEC - 28 series Coreless Motors are widely used in high-speed, high-response applications such as robots and automation equipment due to their excellent high efficiency and low noise. This series of motors has multiple voltage and speed options, supports an operating voltage range of 12 V to 36 V, and has an output power of up to 34.4 W, providing stable and efficient torque output. Its non-cogging design ensures low noise and efficient operation, and the voltage, speed, and bearing type can be customized according to customer needs to meet the needs of different application scenarios.
VEC - 32 Series Coreless Motors
The VEC - 32 series Coreless Motor is an ideal choice for high-performance applications due to its high power density and ultra-high speed. The motor supports a wide operating voltage range from 18 V to 36 V and an output power of up to 61.5 W. The low inertia design ensures fast response and high efficiency, suitable for precision equipment and industrial automation applications. Its non-cogging design reduces noise and vibration, and supports customized options such as output shaft, speed, torque, etc. to meet special needs, and is widely used in high-load, high-precision scenarios.
