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Laser welding a feedthrough

  • US 9,478,959 B2
  • Filed: 03/14/2013
  • Issued: 10/25/2016
  • Est. Priority Date: 03/14/2013
  • Status: Active Grant
First Claim
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1. A method of coupling an insulator to a surrounding ferrule in an implantable medical device comprising:

  • providing an electrical insulator having a plurality of conducting elements extending therethrough;

    placing the insulator with conducting elements within a ferrule having a shape surrounding the insulator along an interface;

    heating the insulator with energy from a first laser until raising the temperature of the insulator to a first temperature level; and

    welding the ferrule to the insulator along the interface with energy from a second laser once the insulator has reached the first temperature.

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