Every year, 150,000 Swedes are affected by heart disease and approximately 10% of these die of their disease. Health care has evolved rapidly to meet these diseases, and cardiac surgery represents an important part of the treatment. The disadvantage of surgery is that it is a major operation with a long convalescence, discomfort and risk of complications. The project aims to develop a new instrument to treat cardiomyopathy. The goal is a prototype that works in large animal experiments and to have 2-3 patent applications submitted.