Patent ID: 6416533
Filing Date: 2002-07-09
Classification: A61F,A61M

Abstract:
A catheter adapted to be disposed in a body conduit to facilitate an exchange of heat between the catheter and a body fluid flowing in the body conduit, comprising:a shaft having an axis, a first lumen, and a second lumen each extending generally between a proximal end and a distal end of the shaft; a first sheet material disposed to define a first cavity exteriorly of the shaft; a second sheet material disposed to define a second cavity exteriorly of the shaft; portions of the shaft defining separate inlet holes providing fluid communication between the first lumen and each of the first cavity and the second cavity; portions of the shaft defining separate outlet holes providing fluid communication between the second lumen and each of the first cavity and the second cavity; whereby a heat exchange fluid can be introduced into the first lumen and through the inlet and outlet holes to and from the first and second cavities to facilitate the exchange of heat with the body fluid flowing in the body conduit.