Retrograde venous perfusion with isolation of cerebral...

Surgery – Blood drawn and replaced or treated and returned to body – Constituent removed from blood and remainder returned to body

Reexamination Certificate

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Reexamination Certificate

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06896663

ABSTRACT:
A medical device for providing retrograde venous perfusion to the cerebral vasculature for treatment of global or focal cerebral ischemia is disclosed. The device includes a catheter having an infusion port at its distal end, venous drainage port(s), and an expandable occluder disposed between the infusion port and drainage port(s). The catheter can be inserted into the superior vena cava or the internal jugular vein. The catheter is attached proximally to a pump and an oxygenator with or without a cooling system. Alternatively, the device includes two catheters, each having a lumen communicating with a distal infusion port and an occluder mounted proximal to the port. The catheters can be inserted into the internal jugular veins distal to jugular venous valves. Methods of using the devices to provide retrograde venous perfusion and isolated cerebral hypothermia are disclosed.

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Juvonen et al., Cardiopulmonary Support and Physiology, “Can Retrograde Perfusion Mitigate Cerebral Injury After Particulate Embolization? A Study in a Chronic Porcine Model,”J. Thorac. and Cardiovasc. Surg.,115(5):1142-1159 (1998).

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