CREB-UPC

Tantalum foams for orthopaedic applications

Posted by CREB-UPCResponsive · Innovative Products and Technologies · Spain

Summary of the technology

- Easy manufacture.
- High degree of porosity (60-80%), high interconnectivity between pores and with a pore diameter greater than 100 µm allowing vascular invasion and bone inward.
- With a specially roughened surface topography.
- The Young’s modulus (0.5-2%GPa) is very close to that of subchondral bone, enhancing the mechanical biocompatibility.
- High surface roughness in conjunction with a low elastic modulus cause fric-tion between the outer surface of the foam and the surrounding bone. It is ap-proximately 1.5 times greater than the friction produced by conventional mesh systems or with titanium or cobalt-chromium spherules, achieving an excel-lent primary stability of the implant.

Description of the tech for sale

A method for obtaining Tantalum (Ta) foams through the powder metallurgy technique for trabecular bone implants has been patented and developed. Part-ners to further develop the system and/or to establish commercial agreements along with technical cooperation are sought. Tantalum porous systems, thus created, effectively promote their integration and invasion by the surrounding bone even in a complex quantitative and qualitative deficit of bone, with a defective contact of up to 5 mm wide. Their behavior is significantly better than those obtained with porous coatings of materials such as cobalt-chrome or titanium which have much more limited osteoconduction.

Specifications

The powder metallurgy (PM) technique that will be used to obtain Ta foams is the space holder method which is a fabrication process that can produce porous metal samples of greater porosity (60-80%). This method has advantages like adjustable porosity amount, pore shape and pore size distribution. The aim of this patent is to obtain open cells structures of Ta with a porosity greater than 60%, medium pore size (100-400 µm), interconnected pores and mechanical properties suitable for trabecular bone implants.

Main advantages of its use

  • - Easy manufacture.- High degree of porosity (60-80%), high interconnectivity between pores and with a pore diameter greater than 100 µm allowing vascular invasion and bone inward.- With a specially roughened surface topography. - The Young’s modulus (0.5-2%GPa) is very close to that of subchondral bone, enhancing the mechanical biocompatibility.- High surface roughness in conjunction with a low elastic modulus cause fric-tion between the outer surface of the foam and the surrounding bone. It is ap-proximately 1.5 times greater than the friction produced by conventional mesh systems or with titanium or cobalt-chromium spherules, achieving an excel-lent primary stability of the implant.

Applications

  • - Total hip prosthesis, knee, ankle and shoulder.- Intersomatic implants in the spine, cervical, thoracic and lumbar.

Additional information (attached documents)

Additional information (attached documents)

Related keywords

  • Industrial Technologies
  • Physical Sciences and Exact Sciences
  • Biological Sciences
  • Coatings
  • Materials Technology
  • System and transportation
  • Physiotherapy, Orthopaedic Technology
  • Industrial Products
  • Medical Health related
  • Genetic Engineering / Molecular Biology
  • foams
  • tantalum
  • orthopaedic
  • obtaining
  • trabecular
  • bone
  • bones
  • Implant
  • implants

About CREB-UPC

Technology Transfer Office from Spain

The Biomedical Engineering Research Centre (CREB) of Universitat Politècnica de Catalunya (UPC) is a multidisciplinary research center in biomedical engineering with over three decades of experience.

Our aim is to support the needs of research, technological development, innovation and knowledge transfeer companies, hospitals and institutions related to the field of medical technologly.

Our professionals, more than 80 researchers are doctors (50%) and graduates in engineering and other disciplines. Our specialized laboratories enable us to offer solutions for any need or demand from the biomedical field, and as a result, the CREB-UPC acts as an activation tool in the science, technolgoy and business.

The CREB-UPC brand TECNIO part of the Government of Catalonia which brings together key actors and experts in applied research and technology transfer in catalonia. It should also be noted that CREB has quality management programs and support programs for the management of innovation in the business sector.

The CREB is able to solve scientific and technological problems, acting as a center of support for technology transfer and training to the industry and the field of Helath Science.

In the early 90's given the idea of coordinating efforts and maximize resources for a corporate image by different research groups working in the field of Biomedical Engineering at the UPC.

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