Case of ceramic femur processing customer

Why need to process orthopedic implants?

As the global population ages, the average life span of humans increases, and the incidence of orthopedic diseases increases year by year. The demand for instruments and high-performance components used in surgery has also changed. In view of the human life support properties of the required implants, the demand for The processing quality of the implant material surfaces of the smallest components is particularly stringent, especially when it comes to orthopedic implants, joint replacements and implant material surface processing applications.

Medical implants are mostly made of biocompatible materials, which are difficult to process.

Slight errors in the processing process will have a significant impact on the quality of life. Therefore, the medical industry has increasingly stringent requirements for the reliability, lightweight and compatibility of medical implants.

The artificial hip prosthesis mainly consists of the acetabulum, lining, femoral head and femoral stem. It imitates the structure of the human hip joint, inserts the prosthesis handle into the femoral medullary cavity, and uses the head to rotate with the joint socket or prosthetic metal cup to achieve flexion, extension and movement of the femur. Among them, femoral head materials are usually divided into two categories: metal alloys and ceramics.

Features of ceramic femoral head:

➤ Its material is aluminum oxide or zirconia, which is difficult to grind with ordinary grinding wheels.

➤ Due to high spherical roundness requirements, the grinding machine tool needs to have spherical grinding function and high precision.

➤ The inner cone surface and the small end surface have transition arc requirements, so the grinding machine tool needs to have multi-axis linkage arc processing functions.

➤ Superhard diamond  grinding wheels are used for processing, so the grinding machine tool must have diamond grinding wheel dressing technology.

It is precisely because of the particularity of the ceramic femoral head itself that it puts forward more stringent requirements for grinding processing. STUDER, known for its high precision and quality, has been deeply involved in the field of internal and external cylindrical grinding for many years. It has mature high-precision grinding solutions for the grinding of ceramic femoral heads of hip joints in the medical field. STUDER has also been a world-renowned medical company. A trusted partner for industry customers such as hip joint ceramic femoral head manufacturers. STUDER grinding machines also provide technical support for the grinding of ceramic products with the characteristics of high precision, multi-function, strong versatility, stability and reliability. Moresuperhard diamond grinding wheels can also be matched with STUDER grinding machines to ensure good surface quality of femoral artificial joints.

The current use of ceramic grinding wheels for femoral processing is not suitable, and the first four generations of porcelain can

The fifth generation porcelain has higher toughness and high hardness, and is prone to being unable to be ground. The result is poor and unstable final grinding surface quality.

For ceramic femur processing, Moresuperhard recommends using resin diamond grinding wheel for rough grinding and a resin grinding wheel for fine grinding (resin is easy to repair).

Suggestions of Moresuperhard: