Method and system for patient temperature management and central venous access

• US 6,942,644 B2
• Filed: 03/31/2003
• Issued: 09/13/2005
• Est. Priority Date: 02/19/1999
• Status: Expired due to Term

• Current Assignee: Zoll Circulation Incorporated (Asahi Kasei Corporation)
• Original Assignee: Alsius Corporation (Asahi Kasei Corporation)
• Inventors: Worthen, William J.
• Primary Examiner(s): Lucchesi, Nicholas D.
• Assistant Examiner(s): WILLIAMS, CATHERINE SERKE
• Application Number:
  US10/403,981
• Publication Number:
  US 20030195465A1
• Time in Patent Office: 897 Days
• Field of Search: 604/113, 604/507, 604/508, 604/509, 604/93.01, 604/114, 604/174, 604/175, 604/179, 604/180, 604/523, 604/96.01, 604/101.01, 604/101.05, 604/101.03, 60410201-10203, 604/103.07, 604/103.08, 607/104, 607/105, 607/106, 607/21, 607/23, 606 21- 26, 606 27- 31, 137/340, 137/334, 128897-898
• US Class Current: 604/113
• CPC Class Codes: A61B 2018/00011 with fluids
• CPC Class Codes: A61F 7/123 using a flexible balloon containing the thermal element
• CPC Class Codes: A61M 1/369 Temperature treatment
• CPC Class Codes: A61M 5/44 having means for cooling or heating the devices or media

Abstract

A catheter with three spiral heat exchange elements surrounding a central supply tube and communicating with a source of heat exchange fluid in a closed loop for effecting patient temperature control and at least two infusion lumens for providing access to the central venous blood supply when the catheter is placed in the central venous system. An anchor can be provided to suture or tape the catheter to the skin of a patient.

Claims

1. A method for treating a patient, comprising:

advancing a catheter into the central venous system of the patient, catheter having plural spiral heat exchangers extending next to each other in a longitudinal dimension, each heat exchanger having an outside surface;

circulating a heat exchange fluid through the heat exchangers to exchange heat with the patient at least by cooling blood flowing around at least the outside surface of the heat exchangers; and

simultaneously with the circulating act, undertaking one or more central venous (CV) line functions.

2. The method of claim 1, wherein at least one heat exchanger conveys heat exchange fluid in a proximal direction relative to the catheter.

3. The method of claim 1, wherein the CV function is medicament infusion.

4. The method of claim 1, wherein the CV function is blood monitoring.

5. The method of claim 1, comprising undertaking at least two CV functions.