Establishment of novel living tissue adhesion method by using integrated low-level energies of heat, pressure and vibration

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Novel biological tissue adhesion method, which is using integrated low-level energy sources of heat, vibration and pressure, has been established. Morphological changes of collagen by heating and applying pressure were observed. It seems that thermal cross-links of collagen fibers could contribute the adhesion strength. We succeeded in shortening the adhesion time to 20 sec by developing specialized heater control unit. The adhesion performance with metal specimen can be regulated by using DLC coating and changing the roughness of metal surface. The polymer material with polar groups can be adhered on the living tissue. In animal experiments, no inflammation was observed, the tissue construction could be preserved well and the adhesion performance could be kept for more than 1 month in the living body.