Applicator Made from a Semi-Crystalline POM Copolymer Can Simplify Cruciate Ligament Operation

July 6, 2010 – 7:45 am

Since 2001, the market for plastics in the medical device sector has grown by 3% annually and, according to projections by experts, will account for four million metric tons by 2010. Engineering plastics with their high performance capabilities are even growing at an annual rate between 4 and 10% in these demanding applications. An engineering plastic from BASF is now expected to help minimise the consequences of torn cruciate ligaments in the future: The handle of a new instrument for inserting cruciate ligament implants that resorbable implant manufacturer Resoimplant expects to launch this year utilises Ultraform PRO – a semi-crystalline POM copolymer (polyoxy-methylene, polyacetal) from BASF.

In addition to the good mechanical properties, the deciding factor for selecting this material was an extensive service package that BASF created specifically for applications in the medical device sector.

A new operating procedure developed by Resoimplant is expected to simplify treatment of torn cruciate ligaments. The concept that the company is currently introducing to clinics is said to simplify securing a cruciate ligament implant in the bone of the knee in an unusual manner: It employs an anchor made from a bioabsorbable material. A few months after the operation, it is resorbed, and the new cruciate ligament – usually a tendon taken from the thigh – is firmly attached. Previous operating procedures used metal screws to affix the tendon. These had to be removed again after the healing process was complete – posing the risk that the newly attached tendon might be damaged. According to the company, the new procedure eliminates the need for the second operation. The screwdriver is replaced by a disposable applicator called Resofix Plus that helps to guide the critical anchor through the operating channel and expands it in the bone.

To read the full article, click here.

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