抄録
To decrease human error in pericardiocentesis, we developed a pericardiocentesis assistance device that does not use a needle. The proposed device is able to aspirate the fluid in the pericardial space by cutting the pericardium with a cutter. To cut the pericardium, we designed a stress-type cutter and a shear-type cutter. We compared the two types, and found that the shear-type cutter can cut the mock pericardium.