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Excellence in Digital Orthopedic Measurements


High precision three-dimensional measurement in vivo

knee operation

Injectors and Tantalum Markers

RSA Biomedical is the world’s foremost provider of Tantalum Markers / Tantalum Beads, and Tantalum Marker Injectors. Our UmRSA® Injector™ and UmRSA® Tantalum Markers™ are well proven, are used in hundreds of RSA® studies, and meet the highest standards of quality in medical research.

UmRSA® Injector™

The UmRSA® Injector™ is designed to help surgeons easily insert spherical UmRSA® Tantalum Markers™ in the skeleton. It is a well-balanced and robust tool, developed in collaboration with medical experts having extensive experience in RadioStereometric Analysis (RSA®).

  • Easy to use.
  • Robust, modular design.
  • Easy to clean and sterilize.
  • For percutaneous insertion of Tantalum Markers.

The UmRSA® Injector™ is ergonomically designed to help surgeons insert markers accurately and efficiently. The UmRSA® Injector™ is easy to dissemble, sterilize, assemble, and load. It uses a spring-loaded punch to force markers into the skeleton.

The UmRSA® Injector™ is available in two sizes, for 0.8 mm and 1.0 mm UmRSA® Tantalum Markers™.

UmRSA® Tantalum Markers™

Skeletal and prosthetic device markers used in the UmRSA® system are made of biocompatible spherical tantalum, a material that is well tolerated by the body and readily observed as a distinct point in the radiograph.

RSA Biomedical offers 3 sizes of UmRSA® Tantalum Markers™, in diameters of 0.5, 0.8, and 1.0 mm.

UmRSA® Tantalum Markers™ are also known as RSA® Tantalum Beads, UmRSA® Tantalum Beads, or RSA® Tantalum Markers.

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