Electrode connector system

• US 5,813,404 A
• Filed: 10/20/1995
• Issued: 09/29/1998
• Est. Priority Date: 10/20/1995
• Status: Expired due to Term

• Current Assignee: Nellcor Puritan Bennett LLC (Medtronic Plc)
• Original Assignee: Aspect Medical Systems, Inc. (Medtronic Plc)
• Inventors: Devlin, Philip H., Chamoun, Nassib G., Shambroom, John R., Marcus, Todd A., Bruckner, Mark E.
• Primary Examiner(s): JAWORSKI, FRANCIS J
• Application Number:
  US08/545,981
• Time in Patent Office: 1,075 Days
• Field of Search: 128/660.01, 128/639, 128/731-733, 128/630
• US Class Current: 600/372
• CPC Class Codes: A61B 18/14 Probes or electrodes therefor
• CPC Class Codes: A61B 2018/00178 Electrical connectors
• CPC Class Codes: A61B 2560/045 with a separable interface unit, e.g. for communication
• CPC Class Codes: A61B 2562/08 Sensors provided with means for identification, e.g. barcodes or memory chips
• CPC Class Codes: A61B 2562/227 Sensors with electrical connectors
• CPC Class Codes: A61B 5/274 using snap or button fasteners
• CPC Class Codes: A61B 5/291 for electroencephalography [EEG]
• CPC Class Codes: A61B 5/303 Patient cord assembly, e.g. cable harness
• CPC Class Codes: H01R 29/00 Coupling parts for selective co-operation with a counterpart in different ways to establish different circuits, e.g. for voltage selection, for series-parallel selection, programmable connectors

Abstract

Disclosed is a physiological electrical signal connector system which one connector connected to an electrode set and another connector connected to a digital signal convertor which leads to a patient monitor. Each type of electrode set has a specific code identified with it and when connected to the digital signal convertor, the connector code is recognized by the digital signal convertor. The connector code is then relayed to the monitor which will self-configure based on the identified code.

Claims

1. An electrode connector system which is used to connect one or more electrodes to a physiological signal monitor, said connector system comprising:

an electrode connector connected through a patient interface cable to said one or more electrodes;

a monitor connector connected to a pigtail cable;

each of said electrode connector and said monitor connector having a plurality of signal lines dedicated to transmit a corresponding one or more channels of a predetermined type of physiological signals and at least two electrode connector identification lines dedicated to transmit a unique identification code associated with a unique electrode configuration.

2. The electrode connector system of claim 1 further comprising a digital signal converter for converting analog physiological signals obtained by said one or more electrodes into digital signals to be processed by said monitor, said digital signal converter being attached at one end to said pigtail cable and at a second end to a monitor interface cable.

3. The electrode connector system of claim 2 further comprising a unique identification code hardwired into said electrode connector and wherein said digital signal converter further comprises means for interpreting said hardwired code.

4. The electrode connector system of claim 1 further comprising a unique identification code hardwired into said electrode connector.

5. The electrode connector system of claim 1 wherein the monitor is connected to one end of said monitor connector.

6. The electrode connector system of claim 1 wherein said electrode connector includes a cutout region and said monitor connector includes a corresponding cutout region, whereby when said electrode connector and said monitor connector are united one of said cutout regions fits within a second of said cutout regions.

7. The electrode connector system of claim 1 further comprising a pulse generator for periodically sensing said unique identification code.

8. The electrode connector system of claim 7 wherein said pulse generator generates pulses at an analog to digital conversion Nyquist frequency.

9. The electrode connector system of claim 1 wherein the monitor further comprises a processor for processing physiological signals if said monitor recognizes a unique identification code as a supported code.

10. The electrode connector system of claim 1 wherein the monitor further comprises a processor for initiating a self test procedure if said monitor recognizes a unique identification code as a supported code.

11. The electrode connector system of claim 1 wherein the monitor further comprises a processor for initiating an electrode impedance test if said monitor recognizes a unique identification code as a supported code.

12. The electrode connector system of claim 1 wherein the monitor further comprises a processor for self-configuring the monitor to receive the number and type of electrodes identified by a unique identification code.

13. The electrode connector system of claim 1 wherein the monitor further comprises a processor for determining from said unique identification code the relative position of said one or more electrodes.

14. The electrode connector system of claim 1 wherein the monitor further comprises a processor for determining the type of said pigtail cable connected to the monitor.