Lead protection and identification system

• US 6,142,949 A
• Filed: 11/24/1998
• Issued: 11/07/2000
• Est. Priority Date: 11/24/1998
• Status: Expired due to Fees

• Current Assignee: Ortivus AB
• Original Assignee: Ortivus AB
• Inventors: Ubby, Johan
• Primary Examiner(s): EVANISKO, GEORGE ROBERT
• Application Number:
  US09/200,140
• Time in Patent Office: 714 Days
• Field of Search: 437/909, 600/508, 600/372, 600/386, 600/394, 600/522, 600/509, 128/908
• US Class Current: 600/508
• CPC Class Codes: A61B 5/276 Protection against electrode failure
• CPC Class Codes: A61B 5/28 for electrocardiography [ECG]
• CPC Class Codes: A61B 5/7203 for noise prevention, reduction or removal

Abstract

The present invention is a lead protection and identification system for a medical diagnostic device. Electrodes are placed on predetermined locations of a patient, and the system includes clips for attaching to the electrodes. The system identifies a lead and provides information to a user as to which one of the electrodes the lead should be connected to. Potentially dangerous signals are prevented from being inputted to a clip when the clip is not connected to an electrode and prevents the patient from being injured.

Claims

1. A lead identification system comprising:

a medical diagnostic device;

a plurality of electrodes;

a patient cable having a first end connected to said medical diagnostic device and a second end including a plurality of cables;

a plurality of clips each attached to a corresponding one of said plurality of cables, each clip comprising an input line, a shield, a switch, a handle, and an electrode connector, said switch operable by said handle and connecting said input line to said shield in an inactive mode, and connecting said input line to said electrode connector in an active mode;

a signal generator for providing a predetermined signal to said shield of each clip;

a signal analyzer for analyzing a signal based on said predetermined signal present on each said input line and outputting an analyzing result; and

a notification device for receiving the analyzing result output by said signal analyzer and for providing information to an operator as to which of said plurality of electrodes a given clip should be attached to, based on the analyzing result, said notification device providing said information to the operator when said handle of one of said plurality of clips is pressed and said switch goes from an inactive mode to an active mode, permitting said electrode connector to engage one of said plurality of electrodes.

2. The lead identification system according to claim 1, wherein said information provided by said notification device is an audio message.

3. The lead identification system according to claim 1, further comprising a display, wherein said information provided by said notification device is a visual message displayed on said display.

4. The lead identification system according to claim 1, wherein said switch is one of a pin switch, button switch, and magnetic reed switch, integrated with said clip.

5. The lead identification system according to claim 4, wherein said switch is said magnetic reed switch, and each of said plurality of clips further includes a magnet which communicates with said magnetic reed switch to allow said magnetic reed switch to go between said inactive mode and active mode.

6. The lead identification system according to claim 1, wherein said patient cable is one of a 12-lead electrocardiogram cable and an 8-lead vector electrocardiogram cable.

7. A lead protection and identification system for a medical diagnostic device, the medical diagnostic device including a patient cable having a first end and a second end, wherein the first end connects to said medical diagnostic device and the second end includes a plurality of cables, each of said plurality of cables respectively connects to one of a plurality of electrodes, said plurality of electrodes adapted to be placed on predetermined locations of a patient, the lead protection and identification system comprising:

a plurality of clips each comprising an input line, a shield, a switch, a handle, and an electrode connector, said switch operable by said handle and connecting said input line to said shield in an inactive mode, and connecting said input line to said electrode connector in an active mode;

a signal generator for providing an input signal to said shield allowing the switch to selectively cause a characteristic event to occur on said input line;

an identifier for identifying which one of said plurality of clips is in said active mode based upon the occurrence of the characteristic event of said input line;

a notification device for providing information to a user as to which one of said plurality of clips should be connected to which one of said plurality of electrodes based on an output from the identifier;

wherein said switch of said clip prevents potentially dangerous signals from being inputted to said clip when said clip is not connected to said electrode.

8. The lead protection and identification system according to claim 7, further comprising an audio device, wherein said information provided by said notification device is an audio message output by said audio device.

9. The lead protection and identification system according to claim 7, further comprising a display, wherein said information provided by said notification device is a visual message displayed on said display.

10. The lead protection and identification system according to claim 7, wherein said switch is one of a pin switch, button switch, and magnetic reed switch, integrated with said clip.

11. The lead protection and identification system according to claim 10, wherein said switch is said magnetic reed switch, and said plurality of clips further includes a magnet which communicates with said magnetic reed switch to allow said magnetic reed switch to go between an inactive mode and active mode.

12. The lead protection and identification system according to claim 7, wherein said patient cable is one of a 12-lead electrocardiogram cable and an 8-lead vector electrocardiogram cable.