×

Transatrial patient temperature control catheter

  • US 9,259,348 B2
  • Filed: 09/28/2011
  • Issued: 02/16/2016
  • Est. Priority Date: 09/28/2011
  • Status: Active Grant
First Claim
Patent Images

1. A transatrial intravascular temperature management catheter, comprising:

  • a lower heat exchange segment positionable in the inferior vena cava of a patient without blocking the inferior vena cava such that blood can flow past the lower heat exchange segment;

    an upper heat exchange segment positionable in the superior vane cava of the patient without blocking the superior vena cava such that blood can flow past the upper heat exchange segment when the lower heat exchange segment is located in the inferior vena cava;

    a connecting segment connecting the heat exchange segments and positionable in the right atrium of the patient when the lower heat exchange segment is located in the inferior vena cava and the upper heat exchange segment is positioned in the superior vena cava, working fluid being circulatable through the heat exchange segments and the connecting segment to and from a heat exchange system external to the patient, the heat exchange system establishing a temperature of the working fluid at least in part based on a signal representing patient temperature, the connecting segment being configured as a simple elongated thin cylindrical tube with a supply and a return lumen for the per heat exchange heat segment, the connecting segment having a smaller diameter than at least the lower heat exchange segment to minimize risk of the connecting segment contacting the right atrium; and

    a temperature sensor on the distal tip o the upper heat exchange segment providing the signal representing patient temperature.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×