In the world of orthopaedic implants, customised test protocols often need to be developed for complex products. The French industry specialist, Newclip Technics, called on Cetim for this process.
Although some orthopaedic implants are covered by standards, when it comes to complex products, manufacturers have to devise and implement customised test protocols that are suited to each case. Newclip Technics draws on Cetim’s resources and expertise in this area. The French company designs, manufactures and markets various ranges of osteosynthesis implants for elective surgery or traumatology. The protocols are devised based on the specific needs set out by the company in order to reproduce the in vivo conditions of the implant on the static and fatigue testing benches, while applying any stresses where needed and in a reproducible manner.
Challenges of orthopaedic implants designers & manufacturers
Some fractures can’t be treated using plaster casts, in which case pins, plates and screws are required to reposition and consolidate the bone. In France, Newclip Technics designs and manufactures just such anatomical orthopaedic implants and plates for the upper and lower limbs. For almost 20 years the company has been developing new innovative products designed to solve a range of problems. However, in the field of medicine, inventiveness is not always enough. The implants have to meet strict standards if they are to be approved for market release. For example, when it comes to their mechanical characteristics, a range of values has to be measured and compared with those specified in the relevant standards.
Cetim’s expertise and solutions
Some standards, such as those relating to fatigue and wear testing, are particularly difficult to apply. They simply set out in schematic terms the tests to be carried out and give the tester complete licence as to how this is done. “That’s why we ask Cetim to carry out these tests. As well as having a Cofrac-accredited biomechanics laboratory, they have the right testing facilities and the expertise required to devise and implement the test protocols necessary to ensure our products meet the requirements set out in the standards. Their engineers can also develop the protocols we need to achieve our target performances for complex implants. And their know-how is equally valuable when it comes to deciding on a test procedure for an assembly (plate and screws) for which there are no established standards.”, explains Renaud Rougé, Head of R&D at Newclip Technics.
Results and benefit
As a result, the protocols are devised according to the specific needs set out by the company in order to reproduce the in vivo conditions of the implant on our static and fatigue test benches while applying any necessary constraints in a reproducible manner.
Zoom on Cetim’s asset
Cetim’s biomechanics laboratory is Cofrac-accredited (accreditation no. 1.1006, scope available on Cofrac.fr) and equipped with 15 static and fatigue test benches for orthopaedic implants and 12 wear test benches for cervical and lumbar spine surgery implants. It helps manufacturers make the right testing procedure and parameter selections, performs the necessary tests using the appropriate procedures and analyses the results.
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For more information about our services and solutions for the Health of the Future, contact our expert Vincent Caulet via :
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