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Embedded thermocouple in denervation flex circuit

  • US 10,271,898 B2
  • Filed: 10/22/2014
  • Issued: 04/30/2019
  • Est. Priority Date: 10/25/2013
  • Status: Active Grant
First Claim
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1. A medical device for sympathetic nerve ablation, comprising:

  • a catheter shaft;

    an expandable balloon disposed on the catheter shaft, the expandable balloon being capable of shifting between an unexpanded configuration and an expanded configuration; and

    a plurality of elongate electrode assemblies each constructed as a flexible circuit having a plurality of layers comprising a base layer facing the expandable balloon and an insulating layer, the plurality of elongate electrode assemblies attached to an outer surface of the expandable balloon;

    wherein each of the plurality of elongate electrode assemblies includes a temperature sensor and a sensor ground pad, wherein the temperature sensor and the sensor ground pad are embedded within the plurality of layers, between the base layer and the insulating layer and wherein the sensor ground pad is between the temperature sensor and the insulating layer.

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