The application of IMS three-seat measuring machine in medical industry!
The quality accuracy and material composition of the artificial femur ball head are very high. If they are not achieved, the clinical effect is not ideal, and it will cause great harm to patients. As a quality assurance device for the artificial femur ball head, the IMS coordinate measuring machine can fully realize the efficient and high-precision measurement of the femur ball head.
With the rapid development of the domestic orthopedic medical device industry, efficient and professional testing technology is particularly important for the quality monitoring of orthopedic equipment products. Hip prosthesis is a kind of artificial ball-and-socket joint, which is composed of four parts: acetabular cup, acetabular lining, femur ball head and femur stalk. The lower spherical radial deviation of the acetabular inner liner can reduce the friction coefficient of the femoral head rotating in the acetabular inner liner, thereby reducing the wear of the material and prolongating the service life of the hip prosthesis.
IMS uses the CMM programming method to segment and measure the spherical surface of the concave spherical hip joint prosthesis, and records the measurement elements and the measurement stroke to complete the automatic detection of the radial deviation of the sphericity, so as to improve the accuracy and efficiency of the detection.
STAFF575 Coordinate Measuring machine for measuring femoral bulb head
How to ensure that the size data of the femur bulb meet the design requirements? A CMM with high precision, repeatability, stability and micrometer tolerance is needed to control the femoral ball. To meet this requirement, the STAFF575 coordinate measuring machine with fully automatic measuring mount can easily perform the task of femoral head ball measurement.
IMS three coordinate technology advantages:
The IMS STAFF575 Tridimensional Series models come in different configurations for high-precision measurements and better performance for continuous scanning measurements, combining precision and dynamic performance. With good reliability and lower cost input, it is a practical and efficient measuring machine, which can provide a variety of reliable measuring solutions for different manufacturing enterprises.
IMS CAD++ has passed the authoritative certification of the German Federal Institute of Physics and Technology, can read various measurement procedures, and can easily meet the following detection technical requirements and provide real and reliable data results.
Femur bulb measurement process:
The diameter of the femur bulb was measured by 25 points, with 1 point at the apex and the remaining 24 points divided into 3 layers with 8 points in each layer. The Angle of the layers was 1 layer according to the equator, the Angle between the two layers was 45 degrees, and the third layer was at the apex. Calculate the distance from each point to the center of the sphere.
Femur ball head sphericity measurement: The method of measuring 25 points is also adopted, and the sphericity evaluation is carried out after the ball is fitted with the best fitting function of the software.
Cone hole measurement: The default method in the industry now is to measure two layers of circles at a fixed depth based on the machining plane on the ball, and calculate the cone Angle according to the cone fitted by the two layers of circles.
Femur bulb measurement process:
The diameter of the femur bulb was measured by 25 points, with 1 point at the apex and the remaining 24 points divided into 3 layers with 8 points in each layer. The Angle of the layers was 1 layer according to the equator, the Angle between the two layers was 45 degrees, and the third layer was at the apex. Calculate the distance from each point to the center of the sphere.
Femur ball head sphericity measurement: The method of measuring 25 points is also adopted, and the sphericity evaluation is carried out after the ball is fitted with the best fitting function of the software.
Cone hole measurement: The default method in the industry now is to measure two layers of circles at a fixed depth based on the machining plane on the ball, and calculate the cone Angle according to the cone fitted by the two layers of circles.
Coordinate measuring machine detection method
According to different measurement requirements of femoral bulbar, IMS measurement provides three convenient and efficient detection methods
1, single-piece testing is mainly used in the product trial production stage, can be directly measured.
2, small batch testing, mainly using programming detection method, convenient and efficient.
3. When it is necessary to carry out mass testing of finished products, the batch testing method of pallet placement is adopted, and the mass automatic testing is realized by means of tooling positioning.
Summary: The IMS STAFF series coordinate measuring machine has rich measuring functions and can deal with more measuring problems one by one. The femur ball head measurement program can greatly improve the yield, obtain high-quality products, shorten the delivery cycle of new products for enterprises, and meet the requirements of reverse testing of products.