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30th December 2014, Tokyo

Warp knitted cardiac-repair patch gets Japanese government support

The new cardiac patch is expected to combine bio-absorbable and non-bio-absorbable polymers. It will incorporate Teijin’s expertise in polymers and technologies and Fukui Warp Knitting’s technologies for warp knitting, or zigzag knitting along the length of the fabric. A joint project to develop a long-lasting regenerative patch for cardiac-repair applications by Osaka Medical College, Fukui Warp Knitting, and Teijin Limited has been selected for support under a Japanese government programme.

The programme, aimed at promoting collaboration between the medical and industrial fields, was launched by Japan’s Ministry of Economy, Trade and Industry (METI) this year.

New cardiac patch

The new cardiac patch is expected to combine bio-absorbable and non-bio-absorbable polymers. It will incorporate Teijin’s expertise in polymers and technologies and Fukui Warp Knitting’s technologies for warp knitting, or zigzag knitting along the length of the fabric.

The aim is to develop an innovative patch featuring a strong, expansive structure suited to cardiovascular surgeries as determined by Osaka Medical College.

Developing innovative device

METI’s new programme succeeds the Program to Develop Medical Equipment and Devices to Solve Unmet Medical Needs, which was launched in 2010. The ongoing goal is to support advances in the medical device industry by incorporating Japan’s world-class manufacturing technologies to develop innovative new medical device.

Osaka Medical College, Fukui Warp Knitting and Teijin contribute medical technologies advancement by basic materials development in paediatric cardiac operation treatment to develop and provide universal medical materials through the integration of research outcomes and Japanese manufacturing technologies.

Cardiac patches

Cardiac patches are widely used to repair heart tissue during cardiovascular operations. Biomaterials derived from bovine and equine tissue and non-absorbable polymer polytetrafluoroethylene are used in existing patches.

The use of biological materials presents safety and handling problems, such as sterilisation and preservation, as well as quality deterioration after long use. Current non-absorbable polymers do not achieve the expansion property required for long-term use with beating, growing hearts, resulting in the need for repeated surgeries to replace the patches, according to Teijin.

www.teijin.com

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