Intravascular systems for corporeal cooling
First Claim
1. A catheter for intravascular corporeal cooling which comprises:
- an elongated tubular member having proximal and distal sections, at least first and second lumens extending therethrough, an outer surface, and an outer wall, an inflatable annular balloon positioned on the outer surface of the elongated tubular member and in fluid communication with a lumen for inflation, and pressure relief means positioned in the outer wall of the elongated tubular member and proximal to the annular inflatable balloon, wherein at least the first lumen can provide cooled blood in the distal direction and distal to the inflatable annular balloon, and when the pressure of fluid within the first lumen reaches a predetermined value, the pressure relief means opens to permit fluid to be released from the elongated tubular member.
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Accused Products
Abstract
A catheter for intravascular corporeal cooling comprises an elongated tubular member having at least one lumen extending therethrough for providing cooled blood, an inflatable annular balloon positioned on the outer surface of the elongated tubular member, and a pressure reliever positioned in the external wall of the elongated tubular member and proximal to the annular inflatable balloon, wherein when the pressure of blood within a lumen reaches a predetermined value, the pressure reliever opens to permit fluid to be released from the elongated tubular member. In other embodiments of the invention the catheter may have two or more inflatable annular balloons that are separately inflatable and/or the catheter has an insulative outer annular member.
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Citations
37 Claims
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1. A catheter for intravascular corporeal cooling which comprises:
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an elongated tubular member having proximal and distal sections, at least first and second lumens extending therethrough, an outer surface, and an outer wall, an inflatable annular balloon positioned on the outer surface of the elongated tubular member and in fluid communication with a lumen for inflation, and pressure relief means positioned in the outer wall of the elongated tubular member and proximal to the annular inflatable balloon, wherein at least the first lumen can provide cooled blood in the distal direction and distal to the inflatable annular balloon, and when the pressure of fluid within the first lumen reaches a predetermined value, the pressure relief means opens to permit fluid to be released from the elongated tubular member. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. A catheter for intravascular corporeal cooling which comprises:
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an elongated tubular member having proximal and distal sections, at least first and second lumens extending therethrough, an outer surface, and an outer wall;
an inflatable annular balloon positioned on the outer surface of the elongated tubular member and in fluid communication wit a lumen for inflation; and
pressure relief means comprising a one-way valve positioned in the outer wall of the elongated tubular member and proximal to the annular inflatable balloon, wherein at least the first lumen can provide cooled blood in the distal direction and distal to the inflatable annular balloon, and wherein when the pressure of fluid within the first lumen reaches a predetermined value, the pressure relief means opens to permit fluid to be released from the elongated tubular member. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16)
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17. A catheter for intravascular corporeal cooling which comprises:
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an elongated tubular member having proximal and distal sections, at least first and second lumens extending therethrough, an outer surface, and an outer wall;
an inflatable annular balloon positioned on the outer surface of the elongated tubular member and in fluid communication with a lumen for inflation;
pressure relief means positioned in the outer wall of the elongated tubular member and proximal to the annular inflatable balloon, and a pressure sensor at or adjacent to the distal end of the elongated tubular member, wherein at least the first lumen can provide cooled blood in the distal direction and distal to the inflatable annular balloon, and wherein when the pressure relief means opens to permit to be released from the elongated tubular member. - View Dependent Claims (18, 19, 20, 21, 22, 23, 24)
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25. A catheter for intravascular corporeal cooling which comprises:
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an elongated tubular member having proximal and distal sections, at least first and second lumens extending therethough, an outer surface, and an outer wall;
an inflatable annular balloon positioned on the outer surface of the elongated tubular member and in fluid communication with a lumen for inflation; and
pressure relief positioned in the outer wall of the elongated tubular member and proximal to the annular inflatable balloon, wherein at least the first lumen can provide cooled blood in the distal direction and distal to the inflatable annular balloon, wherein at least one lumen is in fluid communication with a source of cooled blood, and wherein when the pressure of fluid within the first lumen reaches a predetermined value, the pressure relief means opens to permit fluid to be released from the elongated tubular member. - View Dependent Claims (26, 27, 28, 29, 30, 31)
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32. A catheter for intravascular coporeal cooling which comprises:
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an elongated tubular member having proximal and distal sections, at least first and second lumens extending therethrough, an outer surface, and an outer wall;
an inflatable annular balloon positioned on the outer surface of the elongated tubular member and in fluid communication with a lumen for inflation; and
pressure relief means positioned in the outer wall of the elongated tubular member and proximal to the annular inflatable balloon, wherein at least the first lumen can provide cooled blood in the distal direction and distal to the inflatable annular balloon, wherein at least one lumen is in fluid communication with a liquid pharmaceutical source, and wherein when the pressure of fluid within the first lumen reaches a predetermined value, the pressure relief means opens to permit fluid to be released from the elongated tubular member. - View Dependent Claims (33, 34, 35, 36, 37)
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Specification