Intravascular heat exchange catheter with rib cage-like coolant path
First Claim
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1. A catheter, comprising:
- a first conduit;
a second conduit communicating with the first conduit;
wherein the catheter defines a longitudinal axis, and portions of the first conduit establish axially longer segments and axially shorter segments and wherein portions of the second conduit establish axially longer segments and axially shorter segments, the axially shorter segments being axially shorter segments and the axially longer segments being axially longer segments in that the axially shorter segments are shorter in a dimension defined by the longitudinal axis than the axially longer segments, and further wherein at least one of the axially shorter segments of the second conduit extends axially between first and second transverse segments associated with at least one of the axially longer segments of the first conduit, at least one axially shorter segment of the first conduit being oriented parallel to the longitudinal axis.
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Abstract
An intravascular heat exchange catheter has serpentine-like supply and return conduits circulating working fluid with a heat exchange system to warm or cool a patient in which the catheter is intubated.
185 Citations
17 Claims
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1. A catheter, comprising:
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a first conduit; a second conduit communicating with the first conduit; wherein the catheter defines a longitudinal axis, and portions of the first conduit establish axially longer segments and axially shorter segments and wherein portions of the second conduit establish axially longer segments and axially shorter segments, the axially shorter segments being axially shorter segments and the axially longer segments being axially longer segments in that the axially shorter segments are shorter in a dimension defined by the longitudinal axis than the axially longer segments, and further wherein at least one of the axially shorter segments of the second conduit extends axially between first and second transverse segments associated with at least one of the axially longer segments of the first conduit, at least one axially shorter segment of the first conduit being oriented parallel to the longitudinal axis. - View Dependent Claims (2, 3, 4, 5)
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6. A catheter, comprising:
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a first conduit; a second conduit communicating with the first conduit;
whereinat least a portion of the first conduit and at least a portion of the second conduit are configured in a configuration when a working fluid flows therethrough, the catheter defining a longitudinal axis, the configuration comprising; axially longer segments and axially shorter segments, the axially shorter segments being axially shorter segments and the axially longer segments being axially longer segments in that the axially shorter segments are shorter in a dimension defined by the longitudinal axis than the axially longer segments, at least one of the axially shorter segments of the second conduit extending between first and second transverse segments of at least one of the axially longer segments of the first conduit, at least one of the axially shorter segments being oriented parallel to the longitudinal axis. - View Dependent Claims (7, 8, 9, 10, 11, 12)
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13. An intravascular heat exchange catheter defining a longitudinal axis and comprising:
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first and second conduits in a configuration comprising; axially longer segments and axially shorter segments, the axially shorter segments being axially shorter segments and the axially longer segments being axially longer segments in that the axially shorter segments are shorter in a dimension defined by the longitudinal axis than the axially longer segments, at least one of the axially shorter segments of the first conduit extends from a first transverse segment of at least one of the axially longer segments of the second conduit to a second transverse segment of the axially longer segment of the second conduit, at least one of the axially shorter segments being oriented parallel to the longitudinal axis. - View Dependent Claims (14, 15, 16, 17)
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Specification