CANNULA AND ASSISTED CIRCULATION DEVICE

摘要

The invention is configured in a tube shape that has a tip (31) and base ends (32, 33). Towards the tip (31), a first opening (11) and a second opening (21) are provided. The cannula (100), which positions the first opening (11) inside the aorta (66) and positions the second opening (21) inside a ventricle (64) when the tip (31) is pierced directly in a heart (60) to perform assisted circulation, is equipped with: a first lumen (10) that comprises the first opening (11) and extends from the first opening (11) to the base end (32); and a second lumen (20) that comprises the second opening (21), which is formed in a region closer to the base end (33) than the first opening (11), and extends side-by-side with the first lumen (10) from the second opening (21) towards the base end (33). The cannula (100) is designed to improve circulation efficiency in assisted circulation of blood.