ECG Leadwire System With Noise Suppression and Related Methods

• US 20140221856A1
• Filed: 12/19/2013
• Published: 08/07/2014
• Est. Priority Date: 09/30/2011
• Status: Active Grant

• Current Assignee: Kpr U.S., LLC (Cardinal Health, Inc.)
• Original Assignee: Covidien LP (Medtronic Plc)
• Inventors: Callahan, Mark J., Gilbert, Glenn, Coggins, Scott R., D'Elia, Linda
• Granted Patent: US 9,375,162 B2
• Time in Patent Office: Days
• US Class Current: 600/509
• CPC Class Codes: A61B 2562/182 Electrical shielding, e.g. using a Faraday cage
• CPC Class Codes: A61B 2562/227 Sensors with electrical connectors
• CPC Class Codes: A61B 5/303 Patient cord assembly, e.g. cable harness
• CPC Class Codes: A61B 5/316 Modalities, i.e. specific diagnostic methods
• CPC Class Codes: A61B 5/318 Heart-related electrical modalities, e.g. electrocardiography [ECG]
• CPC Class Codes: A61B 5/7217 of noise originating from a therapeutic or surgical apparatus, e.g. from a pacemaker
• CPC Class Codes: H01F 17/06 with core substantially closed in itself, e.g. toroid
• CPC Class Codes: H01F 2017/065 Core mounted around conductor to absorb noise, e.g. EMI filter
• CPC Class Codes: H01R 13/719 specially adapted for high frequency, e.g. with filters
• CPC Class Codes: H01R 2201/12 for medicine and surgery
• CPC Class Codes: H01R 31/065 with built-in electric apparatus
• CPC Class Codes: H03H 2001/005 Wound, ring or feed-through type inductor
• CPC Class Codes: H05K 9/0066 Constructional details of transient suppressor

Abstract

A noise-suppressing electrocardiograph (ECG) adapter having a first end, a second end, and a noise-suppression element is presented, together with an ECG noise-suppressing system and related methods. In an embodiment, the noise-suppressing ECG adapter includes a housing having at least one first connector disposed at a first end of the housing adapted to electrically couple with an ECG lead set, and at least one second connector adapted for coupling to an input of an ECG device. The adapter includes a noise suppression element. The noise suppression element includes a ferromagnetic element having an opening defined therein. In an embodiment the noise suppression element is internal to the adapter. In another embodiment, the noise suppression element is tethered externally to the adapter and configured to clamp around at least a portion of an ECG leadwire.

Claims

1. A noise-suppressing ECG adapter, comprising:

a housing having a first end and a second end;

at least one first connector disposed at the first end of the housing, the at least one first connector adapted for operably coupling to a proximal end of ECG lead set;

at least one second connector disposed at the second end of the housing, the at least one second connector adapted for coupling to an input of an ECG device;

a noise suppression element disposed within the housing, the noise suppression element including one of a ferromagnetic element and an electromagnet having an opening defined therein; and

at least one conductor operably coupling the first connector and the second connector and passing through the opening of the one of the ferromagnetic element and the electromagnet.

2. The noise-suppressing ECG adapter according to claim 1, wherein the noise suppression element includes one of a low pass filter, a high pass filter, a notch filter, or a nyquist

3. The noise-suppressing ECG adapter according to claim 1, wherein the first connector includes a six-pin configuration.

4. The noise-suppressing ECG adapter according to claim 3, wherein the six-pin configuration comprises five signal pins and one ground pin.

5. The noise-suppressing ECG adapter according to claim 1, wherein the at least one second connector includes one signal pin and one ground pin.

6. The noise-suppressing ECG adapter according to claim 1, wherein the one of the ferromagnetic element and the electromagnet includes a shape selected from the group consisting of a toroid and an open cylinder.

8. The noise-suppressing ECG adapter according to claim 1, wherein the noise suppression element is a ferromagnetic element formed from material selected from the group consisting of ferrite and laminated iron.

7. The noise-suppressing ECG adapter according to claim 7, wherein the at least one conductor passes through the opening of the ferromagnetic element in a plurality of windings.

9. A noise-suppressing ECG system, comprising:

a noise-suppressing ECG adapter, comprising;

a housing having a first end and a second end;

at least one first connector disposed at the first end of the housing, the at least one first connector adapted for operably coupling to proximal end of ECG lead set;

at least one second connector disposed at the second end of the housing, the at least one second connector adapted for coupling to an input of an ECG device;

a noise suppression element disposed within the housing, the noise suppression element including one of a ferromagnetic element and an electromagnet having an opening defined therein; and

at least one conductor operably coupling the first connector and the second connector and passing through the opening of the one of the ferromagnetic element and the electromagnet; and

an ECG device adapted to operably couple to the at least one second connector of the noise-suppressing ECG adapter.

10. The noise-suppressing ECG system according to claim 9, further comprising an ECG lead set including a plurality of lead wires at a distal end of the ECG lead set configured to operably couple to a plurality of ECG pads, and an ECG connector disposed at a proximal end of ECG leadwire set.

11. The noise-suppressing ECG system according to claim 9, wherein the noise suppression element includes one of a low pass filter, a high pass filter, a notch filter and a nyquist filter.

12. The noise-suppressing ECG system according to claim 9, wherein the first connector includes a six-pin configuration.

13. The noise-suppressing ECG system according to claim 9, wherein the six-pin configuration comprises five signal pins and one ground pin.

14. The noise-suppressing ECG system according to claim 9, wherein the at least one second connector includes one signal pin and one ground pin.

15. The noise-suppressing ECG system according to claim 9, wherein the one of the ferromagnetic element and the electromagnet includes a shape selected from the group consisting of a toroid and an open cylinder.

16. The noise-suppressing ECG system according to claim 15, wherein the at least one conductor passes through the opening of the ferromagnetic element in a plurality of windings.

17. The noise-suppressing ECG system adapter according to claim 9, wherein the noise suppression element is a ferromagnetic element formed from material selected from the group consisting of ferrite and laminated iron.

18-41. -41. (canceled)