초록 ▼

A parallel aorta passageway is provided with its upper end being connected to the aorta in close proximity to the heart. The opposite ends of the parallel aorta are grafted to the aorta without interrupting the blood flow through the heart and circulatory system. The parallel aorta is received in an

A parallel aorta passageway is provided with its upper end being connected to the aorta in close proximity to the heart. The opposite ends of the parallel aorta are grafted to the aorta without interrupting the blood flow through the heart and circulatory system. The parallel aorta is received in an outer tube with a balloon being positioned between the inner and outer tubes. An air line extends from the lower end of the balloon through the ribs under the flesh and out of the body through a hole drilled in the iliac crest. The tube is connected to an external control unit synchronized with the heart to provide counter pulsations 180°out of phase with the heart pulsations.

대표청구항 ▼

An implantable parallel aorta balloon pump for pumping blood from the descending aorta to the ascending aorta comprising, a valveless open flexible substantially straight inner tube positioned in a flexible substantially straight outer tube, connecting means on the one end of said inner tube for con

An implantable parallel aorta balloon pump for pumping blood from the descending aorta to the ascending aorta comprising, a valveless open flexible substantially straight inner tube positioned in a flexible substantially straight outer tube, connecting means on the one end of said inner tube for connecting said one end to a descending aorta, connecting means on the other end of said inner tube for connecting said other end to an ascending aorta, a balloon positioned between the walls of the inner and outer tubes for engagement against only one side of the inner tube wall, and said balloon having one end adjacent said one end of said inner tube and an opposite end positioned adjacent the other end of said inner tube, an air drive means connected to said one end of said balloon alternately inflating and deflating said balloon whereby said one side of the inner tube wall is collapsed when said balloon is inflated thereby providing a pumping action in said inner tube in direction towards the other end of said balloon to move blood from said one end of said inner tube to the other end of said inner tube. A method of assisting the heart comprising the steps of, implanting in the body without interrupting the flow of blood through the heart and its circulation system a balloon pump including a substantially straight open and flexible passageway parallel to and connected between the ascending aorta and descending aorta and positioning an inflatable balloon on one outside wall of the parallel passageway and providing a flexible outer tube on an inner tube with the balloon therebetween, connecting an external gas drive means to the pump and extending a tube from the lower end of the balloon to outside the body, and synchronizing the pumping action to provide pulsations 180°out of phase with the heart thereby producing upwardly moving pressure waves in the parallel passageway as the balloon fills from the lower end to the upper end.