ECG cable for use in MRI

• US 20060247509A1
• Filed: 04/28/2006
• Published: 11/02/2006
• Est. Priority Date: 04/28/2005
• Status: Abandoned Application

• Current Assignee: Ivy Biomedical Systems Inc
• Original Assignee: Ivy Biomedical Systems Inc
• Inventors: Blank, Elliot Jay, Tuccillo, Mark Joseph
• Application Number:
  US11/414,695
• Publication Number:
  US 20060247509A1
• Time in Patent Office: Days
• US Class Current: 600/372
• CPC Class Codes: A61B 2562/222 Electrical cables or leads therefor, e.g. coaxial cables or ribbon cables
• CPC Class Codes: A61B 5/303 Patient cord assembly, e.g. cable harness
• CPC Class Codes: A61B 5/308 for electrocardiography [ECG]

Abstract

A cable for use in monitoring patients in an MRI environment. In one embodiment the cable is constructed of a flexible substrate on which are drawn conductive traces with a conductive ink. In one embodiment the flexible substrate is Kapton. In one embodiment the conductive ink is a carbon ink. In one embodiment the carbon ink has a resistance of 10 ohms/sq. In one embodiment the cable has a distributed impedance of 10,000 ohms/ft.

Claims

1. A cable for use in monitoring patients in an MRI environment comprising a flexible substrate on which are drawn conductive traces with a conductive ink.

2. The cable of claim 1 wherein the flexible substrate is Kapton.

3. The cable of claim 1 wherein the conductive ink is a carbon ink.

4. The cable of claim 3 wherein carbon ink has a resistance of 10 ohms/sq.

5. The cable of claim 1 wherein the cable has a distributed impedance of 10,000 ohms/ft.

6. A method of fabricating a cable adapted for monitoring patients in an MRI environment, the method comprising the steps of

providing a flexible substrate having a first surface and a second surface;

and

drawing a plurality of conductive traces on the first surface with a conductive ink.

7. The method of claim 6 wherein the flexible substrate is Kapton.

8. The method of claim 6 wherein the conductive ink is a carbon ink.

9. The method of claim 8 wherein carbon ink has a resistance of 10 ohms/sq.

10. The method of claim 6 wherein the cable has a distributed impedance of 10,000 ohms/ft.

11. A system for monitoring a patient in an MRI environment, the system comprising

a cable adapted for use in monitoring patients in an MRI environment, the cable comprises a flexible substrate on which are drawn a plurality of conductive traces with a conductive ink, the cable adapted to substantially resist motion in response to a magnetic field induced by a MRI device,

an ECG monitor, the monitor adapted to be in electrical communication with the cable, and

an ECG electrode in electrical communication with the cable.

12. The system of claim 11 wherein the flexible substrate is Kapton.

13. The system of claim 11 wherein the conductive ink is a carbon ink.

14. The system of claim 13 wherein carbon ink has a resistance of 10 ohms/sq.

15. The system of claim 11 wherein the cable has a distributed impedance of 10,000 ohms/ft.