公开(公告)号：US11364333B2

公开(公告)日：2022-06-21

申请号：US16754382

申请日：2018-10-10

申请人： UNIVERSITY OF MARYLAND, BALTIMORE ,  UNIVERSITY OF MARYLAND MEDICAL SYSTEM, LLC

发明人： Zachary Kon ,  Mehrdad Ghoreishi ,  Chetan Pasrija ,  Bartley Griffith ,  Gregory Bittle

IPC分类号： A61M1/36 ,  A61M25/00

摘要： Disclosed herein is a bidirectional intravascular cannula, or catheter, that is configured to provide and return blood in a patient bidirectionally. The bidirectional intravascular cannula is configured to reduce or obviate the need for a second cannula, such as currently available unidirectional cannulae, to be placed in a second or opposite direction of flow. Users would include cardiac surgeons, intensivists, vascular surgeons, ER doctors, IR doctors and cardiologist who use peripheral cannulation for ECLS or cardiopulmonary bypass. The cannula allows continued flow to a patient's limb even with the cannula proximally in the vessel. The cannula further allows larger size cannula to be placed without the need for additional distal catheter placement.

公开(公告)号：US20190224456A1

公开(公告)日：2019-07-25

申请号：US16256499

申请日：2019-01-24

申请人： University of Maryland, Baltimore ,  University of Maryland Medical System, LLC

发明人： Zachary Kon ,  Bartley P. Griffith ,  Mehrdad Ghoreishi ,  Chetan Pasrija ,  Gregory Bittle

IPC分类号： A61M25/09

摘要： Disclosed herein is a guidewire configured for placement of large bore catheters and cannulae inside of a patient's blood vessels without fluoroscopic guidance. The guidewire, in accordance with certain aspects of an embodiment of the invention, comprises sections of varying stiffness throughout optimally fixed length portions of the guidewire that particularly ease placement of such large bore catheters and cannulae in ECMO applications.