What Are The Advantages Of CNC Machining In Medical Devices?

Industrial CNC machine at Yonglihao Machinery's factory machining metal parts for medical devices, complex manufacturing process

Today, CNC technology is constantly evolving. CNC machined parts are becoming more and more accurate and reliable. CNC machined services are widely used in various industries, including the medical device industry. As medical parts require high precision, accuracy and reliability, many parts are very complex and also need to meet very strict implementation standards, therefore, with the progress of medicine, a large number of related needs are also increasing, and the advantages of CNC machining in this industry have been gradually enlarged.

This paper will explore the many advantages of CNC machining in medicine. It will highlight its uses, advantages, and main concerns. This will give you a basic understanding of this field. Let Yonglihao Machinery take you through this process in detail!

Table of Contents

Overview of CNC machining

CNC is a method of machining that uses a program to control the movement of the machine tool and the machining of the part. It is very precise and efficient. It is ideal for use in aerospace, medical devices and other fields. It is better suited for producing many types of parts in small batches. Those parts can be very complex and require high precision. It allows you to machine those parts efficiently and automatically. It greatly improves efficiency and shortens cycle times.

The development of medical devices dates back to ancient times, when simple tools and materials were used to treat diseases. For example, the ancient Egyptians invented their own tool and then used it to treat their teeth. Ancient Greek doctors invented the Hippocratic bone needle for use in surgery. In modern times, steel scalpels and electric scalpels were invented. From ancient to modern times, the development of medical devices can be said to be closely related to human life. With the continuous development of medical devices, CNC technology will become more and more prominent in the field of medical devices.

Yonglihao Machinery Performs Precision CNC Machining of Customer's Medical Device Components

How to use CNC to process medical devices?

CNC machining is used to manufacture medical devices. First, a design file is created using CAD. Then, the file is sent to a CNC machine. The CNC machine uses the CAD file to create a three-dimensional model for machining. The process of machining a part includes the following steps:

  1. Design the part:The part is designed according to the relevant requirements, including information such as size, shape and appearance.
  2. Prepare the machining program:The designed part is transformed into a machining program by CAM software, which is responsible for breaking down the designed part into commands that can be understood by the machine tool, including cutting path, cutting speed, feed rate, etc. 
  3. Select the correct machining process:Selec tion is based on the material and machining requirements of the part. Different process parameters will affect the quality of the final part and machining efficiency.
  4. Select the right tool: Select according to the shape of the part and machining needs.
  5. Prepare machine tools and fixtures:Prepare suitable machine tools and fixtures according to the machining program and part size. The selection of fixtures is related to the clamping method and clamping position. The preparation of machine tools includes calibrating the zero point of the machine, installing tools, adjusting the position of the table and so on.
  6. Machining preparation:Machining preparation before machining, including installing tools, adjusting the initial position, determining the machining sequence, etc.
  7. Machining operation:According to the compiled machining program for machining operations. Input the machining program through the machine control system, start the machine tool for machining. The machine tool according to the program instructions for parts cutting, drilling and a series of other operations.
Yonglihao Machinery factory equipment cutting metal parts for medical device manufacturing

The main advantages of medical equipment CNC machining

The quality of equipment in the medical device industry is key. It is closely related to the life and safety of patients. Therefore, medical equipment has high requirements for quality and safety. Medical equipment CNC machining has unparalleled precision. It can process complex and fine CNC medical parts. The parts processed through it also ensure patient safety and effective equipment. Its main advantages are as follows:

High precision and accuracy

Medical equipment often comes into contact with patients in the course of use. Therefore, there are strict requirements for their quality and efficacy. These rules cannot be compromised. This method is superior to some traditional methods. The parts it makes can be very precise. The products it makes can also be very precise. Therefore, it is the best choice for making medical devices.

High production efficiency

Since many medical devices have complex parts, depending on the different complexity of the processed parts, high-precision parts can be produced within a few hours. Realizing rapid production without compromising quality shortens the product delivery cycle and improves the quality of product delivery.

Higher flexibility and adaptability

Medical science is constantly advancing. New treatments and technologies are emerging. Equipment updates are accelerated. Related requirements are higher. CNC machined parts can quickly adapt to design changes. They do not require much time and effort. This greatly demonstrates its flexibility.

Diversity of machining materials

In the production of medical devices, it is necessary to use a variety of raw materials such as metals, plastics, and composite materials, because different raw materials have different properties and characteristics, so the choice of CNC machining can be realized by choosing different machining tools to achieve the processing of different raw materials, greatly simplifying the processing of different parts.

Applicable to any number and type of parts processing

Usually, the medical industry, the demand for parts processing of many varieties, small batch, and CNC machining without special molds. Therefore, choosing CNC machining for medical parts can realize fast and accurate machining. It is not too costly. At the same time, it is suitable for many types of parts machining.

Ensure strict medical standards

The medical device industry has strict standard requirements for their products, and they also have to comply with strict international standards. the ISO 13485 standard makes special requirements for the quality of medical devices, so CNC machining of parts can be a good way to support medical device manufacturers to meet this standard.

CNC machine tool using coolant to machine high precision metal parts for medical devices

CNC Machining in the Medical Industry

CNC has many advantages in machining medical device parts, so it is very widely used in the medical field. So what are the specific applications? 

Surgical instruments

The quality of surgical instruments is directly related to the success or failure of the operation, so surgical instruments require high precision and stability of the parts. Through CNC machining technology, reliable surgical instruments can be produced to provide timely, accurate and stable support for the doctor’s surgical operations. For example, scalpels, forceps, pliers, retractors and other surgical tools can be machined with high precision using CNC technology.

Medical Implants

There are many medical implants in the healthcare industry. They are implanted into patients to ensure that they can use certain functions normally, and therefore require particularly stringent precision, and any slight deviation may affect the final functionality. CNC-machined medical implants can meet the dimensional requirements and surface finish very well. For example, CNC machining plays an important role in knee implants and hip replacements, where medical implants are machined to help patients quickly realize certain functions.

Diagnostic and Electronic Devices

The medical industry uses many pieces of equipment such as MRI machines, CT scanners, and lab analyzers. These devices contain thousands of parts, some in the tens of thousands. Since these parts do not need to be biocompatible, most of them can be manufactured by CNC machining. This method is very precise and reliable.

Customized Prosthetics and Exoskeletons

Patients require different prostheses and exoskeletons. This is because their body structures are not identical. 3D scanning and image acquisition technology can be used to collect specific data from different parts of the patient’s body, and then CNC machining can be used to produce compliant prosthetics and exoskeletons that restore the patient’s function.

Each patient’s prosthesis and exoskeleton is unique. The parts that require CNC machining are few and varied. Therefore, they are well suited for CNC machining.

Micromachining of small parts

CNC machining is often used in medical devices because there are many small parts that play an irreplaceable role in repairing damaged bones and joints. In addition, in diagnostic systems, there are miniature parts with complex shapes and high precision requirements, and the use of CNC machining ensures the production of high-quality parts.

The main considerations of CNC machining in the manufacture of medical devices

CNC machining of medical devices directly affects the quality, safety and function of medical devices, so the factors to be considered when machining parts are crucial. The main considerations are in the following areas:

Compliance and Standards

The International Organization for Standardization (ISO) developed quality management system standards for CNC machining in the medical field early on, such as the ISO 13485 standard, which was developed specifically to control the quality of medical devices. This includes everything from design and machining to product delivery. Therefore, the entire machining process of medical device parts must comply with the requirements of this standard. In addition, the legal requirements of the relevant country must be met.

Material Selection

Medical devices for different applications require the use of different materials. The materials used need to be selected based on strength, flexibility, corrosion resistance, chemical resistance and mechanical properties. Biocompatibility needs to be considered when dealing with parts of the device that come into contact with the patient’s body to ensure that they do not cause adverse body reactions. Materials in critical areas must have the required tensile and compressive strength. The selected materials must not release any harmful elements such as toxic, carcinogenic or mutagenic agents.

Maintenance and quality control

Proper maintenance and care of the machine tool is critical to ensure quality machining of medical parts. Routine maintenance must be carried out on the equipment involved at times other than CNC machining. This is to ensure their accuracy. In addition, a sound quality control mechanism for parts should be established to ensure that there are no major quality issues with the machined parts and that the quality of the final part is controlled.

Yonglihao Machinery performs high-precision CNC machining of complex metal parts for medical devices, advanced manufacturing capabilities and attention to detail.

Conclusion

Medical technology is always advancing. The parts of medical equipment are becoming more and more complex. Parts need to be more precise and smooth. Therefore, CNC machining of medical equipment will become more and more common. Yonglihao Machinery Company specializes in machining mechanical parts. We have years of experience and expertise in CNC machining. If you need machining parts, please contact us. We will provide you with professional services and complete solutions.

FAQ

Materials include titanium, stainless steel, and medical-grade plastics such as PEEK (polyether ether ether ketone).

CNC machining uses CAD software. It also uses automation and high-precision equipment. This is done to achieve tight tolerances and consistent quality.

These include surgical instruments, implants, diagnostic equipment and customized prosthetics.

Standards include ISO 10993 for biocompatibility, ISO 13485, and other medical device regulations.

CNC machining reduces overall costs by reducing material waste, enabling small production runs and minimizing errors.

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