SELF-CENTERING PATIENT TEMPERATURE CONTROL CATHETER
First Claim
Patent Images
1. A catheter, comprising:
- working fluid supply and return lumens through which working fluid circulates to exchange heat with a patient in whom the catheter is positioned, at least one lumen being defined by plural coils axially spaced from each other, at least a first coil being a large coil that inflates with working fluid to seat against a wall of a blood vessel in which the catheter is positioned with blood flowing through the coil so as not to block blood flow in the vessel.
1 Assignment
0 Petitions
Accused Products
Abstract
A patient temperature control catheter includes working fluid supply and return lumens through which working fluid circulates to exchange heat with a patient in whom the catheter is positioned. At least one lumen is defined by plural coils axially spaced from each other. At least a first coil is a large coil that inflates with working fluid to seat against a wall of a blood vessel in which the catheter is positioned, with blood flowing through the coil so as not to block blood flow in the vessel.
-
Citations
20 Claims
-
1. A catheter, comprising:
working fluid supply and return lumens through which working fluid circulates to exchange heat with a patient in whom the catheter is positioned, at least one lumen being defined by plural coils axially spaced from each other, at least a first coil being a large coil that inflates with working fluid to seat against a wall of a blood vessel in which the catheter is positioned with blood flowing through the coil so as not to block blood flow in the vessel. - View Dependent Claims (2, 3, 4, 5)
- 6. The catheter of claim 6, wherein the coils are in the working fluid supply path and the straight tube defines at least part of the working fluid return path.
-
8. A method, comprising:
-
circulating working fluid through working fluid supply and return lumens of a catheter to exchange heat with a patient in whom the catheter is positioned; and providing at least one self-centering member engaged with the catheter, the at least one member being expandable against a wall of a vascular area in which the catheter is positioned to center at least one heat exchange region of the catheter in the vascular area. - View Dependent Claims (9, 10, 11, 14, 15, 17, 18)
-
- 12. The method of claim 12, wherein the at least one member is substantially coaxial with the heat exchange region(s) when the member is expanded against the wall of the vascular area.
-
16. A catheter, comprising:
-
working fluid supply and return lumens through which working fluid circulates to exchange heat with a patient in whom the catheter is positioned; and at least one expandable wire located longitudinally along the catheter and engaged therewith, the wire being expandable against a wall of a blood vessel in which the catheter is positioned to center heat exchange regions of the catheter in the vessel. - View Dependent Claims (19, 20)
-
Specification