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Magnetic electrical connector for patient monitors

  • US 9,775,545 B2
  • Filed: 09/27/2011
  • Issued: 10/03/2017
  • Est. Priority Date: 09/28/2010
  • Status: Active Grant
First Claim
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1. A system for connecting a sensor using isolation of electrical components comprising:

  • a noninvasive optical sensor including a light source configured to emit light and a detector configured to detect the light after attenuation by body tissue at a measurement site;

    an EEG sensor comprising a plurality of EEG electrodes configured to detect a bioelectric signal from a patient;

    a first cable including a first plurality of conductors electrically connected to the EEG sensor and the noninvasive optical sensor;

    a second cable including a second plurality of conductors coupled to a patient monitoring system; and

    a signal isolation coupling comprising;

    a first electrical element inside the first cable and forming a part of the first cable, said first electrical element electrically connected to said first plurality of conductors via a modulator circuit inside the first cable, wherein said modulator circuit is configured to transform low frequency signals carried by the first plurality of conductors to high frequency signals;

    a first insulating barrier inside the first cable protecting the first portion;

    a second electrical element inside the second cable and forming a part of the second cable, said second electrical element electrically connected to the second plurality of conductors, said second plurality of conductors configured to carry said high frequency signals received by the second electrical element from the first electrical element over a physical separation between the first cable and the second cable, wherein said second cable is configured to detachably connect with the first cable at the physical separation; and

    a second insulating barrier inside the second cable protecting the second portion;

    wherein the first cable comprises a cavity configured to receive the second cable and electrically couple with the second cable at the physical separation with no exposed conductors, the cavity comprising a first section and a second section, the first section perpendicular to the second section, and wherein the cavity is configured to secure the first cable with the second cable through the first and the second sections.

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