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Overcome the hurdles of quality assurance of medical implants
ZEISS Medical Industry Solutions

ZEISS Insights: Technical papers on geometric dimensioning of a knee implant

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The highly sensitive and polished surface of a femoral knee implant requires appropriate quality assurance.

Geometric dimensioning of a femoral implant

In the medical industry, we understand that quality requirements are especially high, particularly for products which are intended for use inside the human body. For example, orthopaedic implant manufacturers are faced with the challenge of precisely and efficiently measuring complex, highly polished free-form surfaces, without destroying the component. In this technical paper, we will show you how to check the geometric dimensioning of highly polished metal implants, without causing micro scratches. It will include a demonstration of an examination on a CMM system, with a femoral of an orthopaedic knee implant as the example workpiece.

Highlights

  • Discover the advantages of optical measurement using a CMM for highly polished metal implants
  • Speed up your measurement process with 4-axis scanning and a rotary table
  • Define easily measured features such as free-form surfaces, using ZEISS CALYPSO software
High-speed, non-contact scanning is ideal for sensitive plastic surfaces, such as the insert of a knee implant.

Geometric dimensioning of a tibial insert

Do you want to measure plastic implants efficiently, accurately and without causing damage? At the same time, are you faced with the challenge of complying with the high regulatory specifications of the medical technology industry?

In this technical paper we’ll demonstrate two different ways to inspect the sensitive surface of a plastic component. We will use a plastic insert from a knee implant to demonstrate these processes. Experience the advantages of high-speed optical measurement and learn more about the benefits of X-ray systems.

Highlights

  • Explore two different ways to efficiently measure plastic implants, featuring demonstrations on the measurement machines
  • Learn more about non-contact high-speed scanning of sensitive plastic surfaces
  • Measure surfaces and inspect internal structures with CT systems
The tibial of a knee implant has hard-to-reach areas and free-form elements, making quality assurance challenging.

Geometric dimensioning of a tibial tray

Do you have to balance meeting the high standards of the medical industry quality requirements, whilst efficiently measuring complex free-form structures? In this technical paper we’ll show you an easy way to measure these hard-to-access freeform features, using the example of an orthopedic tibial implant. We’ll demonstrate this process with a CMM system and guide you step by step - from fixturing the part to creating a measuring protocol.

Highlights

  • Discover how to efficiently measure recessed areas of a metal implant
  • Learn more about the ZEISS Stylus System for flexible measurement of free-form surface elements
  • See how to easily create presentations of results using ZEISS PiWeb software

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