专利名称：Perfusion angioplasty catheter with pump
assist
发明人：Jeffrey L. Helfer申请号：US07/219526申请日：19880715公开号：US04857054A公开日：19890815
摘要：A catheter is described to provide perfusion while a body vessel is beingblocked by the catheter for angioplasty treatment. Intake apertures and ejectionapertures are constructed with one-way valves that permit the upstream apertures toonly take fluid into the catheter, and the downstream apertures only to eject fluid fromthe catheter. A pump cooperates with the one-way valves to eject the drawn in aliquotwithout having to circulate the body fluid outside of the body vessel.
申请人：EASTMAN KODAK COMPANY
代理人：Dana M. Schmidt
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