Methods and devices for occluding a vessel and performing differential perfusion
First Claim
1. An aortic catheter for segmenting and selectively perfusing a patient'"'"'s aorta comprising:
- (a) an elongated shaft having a proximal end, a distal end and a length sufficient to be inserted into an ascending aorta and guided transluminally in an antegrade direction such that said distal end is positioned in a descending aorta when in the operative position and said proximal end resides external to the patient when in an operative position;
(b) a proximal portion of said elongated shaft having an inner coil reinforced shaft whose internal diameter defines a corporeal perfusion lumen and an outer coil reinforced shaft, said inner coil reinforced shaft and said outer coil reinforced shaft configured in a coaxial relationship such that an annular space is created therebetween;
(c) an arch perfusion lumen defined by said annular space terminating as at least one arch perfusion port positioned along the length of said elongated shaft;
(d) a distal portion of said elongated shaft defined by said inner coil reinforced shaft and terminating as at least one or more corporeal perfusion ports;
(e) a flow control regulator positioned proximal to said distal end and distal to said at least one arch perfusion ports, said flow control regulator sized and configured to at least partially occlude the aorta; and
(f) a distal tip configured for insertion into the ascending aorta.
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Accused Products
Abstract
The present invention includes an apparatus and methods for differentially perfusing a patient undergoing cardiopulmonary bypass. A cardiopulmonary bypass machine is configured to provide hypothermic oxygenated blood and normothermic oxygenated blood to an aortic balloon catheter. The catheter has arch perfusion ports and corporeal perfusion ports and is introduced into a patient'"'"'s aorta and navigated transluminally until the occlusion balloon is located in the descending aorta. The occlusion balloon is inflated and hypothermic oxygenated blood is perfused to the arch vessels while normothermic oxygenated blood is perfused to the corporeal circulation. This procedure offers the benefit of cerebral protection from embolic events during cardiopulmonary bypass surgery.
110 Citations
26 Claims
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1. An aortic catheter for segmenting and selectively perfusing a patient'"'"'s aorta comprising:
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(a) an elongated shaft having a proximal end, a distal end and a length sufficient to be inserted into an ascending aorta and guided transluminally in an antegrade direction such that said distal end is positioned in a descending aorta when in the operative position and said proximal end resides external to the patient when in an operative position;
(b) a proximal portion of said elongated shaft having an inner coil reinforced shaft whose internal diameter defines a corporeal perfusion lumen and an outer coil reinforced shaft, said inner coil reinforced shaft and said outer coil reinforced shaft configured in a coaxial relationship such that an annular space is created therebetween;
(c) an arch perfusion lumen defined by said annular space terminating as at least one arch perfusion port positioned along the length of said elongated shaft;
(d) a distal portion of said elongated shaft defined by said inner coil reinforced shaft and terminating as at least one or more corporeal perfusion ports;
(e) a flow control regulator positioned proximal to said distal end and distal to said at least one arch perfusion ports, said flow control regulator sized and configured to at least partially occlude the aorta; and
(f) a distal tip configured for insertion into the ascending aorta. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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Specification