L or T shaped apparatus for surgically bypassing an obstructed coronary artery and additionally avoids impingement of high velocity blood flow directly against the coronary artery wall

摘要

An apparatus for performing coronary artery bypass surgery establishes a channel leading directly from a chamber of a heart into a coronary artery with the channel retained open during both diastole and systole. The coronary artery bypass procedure may be performed with or without cardiopulmonary bypass. Fig. 1 is a right, front and top perspective view of an L-shaped conduit. Fig. 2 is a right, front and top perspective view of a T-shaped conduit. Fig. 2b is a side elevation view of the conduit of Fig. 2 shown partially in section to reveal one optional bi-directional flow regulator located in an intra-coronary arm of the conduit. Fig. 3 is a partial external perspective view of a transversely sectioned coronary artery and heart wall illustrating the partial placement of one embodiment of the conduit into the incised coronary artery.