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CRYOSHEATH

  • US 20100324546A1
  • Filed: 07/09/2008
  • Published: 12/23/2010
  • Est. Priority Date: 07/09/2007
  • Status: Abandoned Application
First Claim
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1. A cryoprobe operating with a cryogen comprising:

  • an external shaft with an outlet connection for removal of gaseous cryogenic medium, said external shaft including an inner thermal insulation;

    an internal feeding lumen located within said external shaft, said internal feeding lumen serving to transmit the cryogen and having an inlet connection for receiving the cryogen;

    a cryotip joined with said external shaft and cooled with the cryogen transmitted by said internal feeding lumen;

    a displaceable sheath, which comprises an envelope positioned with a gap around said external shaft; and

    an inlet to said envelope for providing a warming gaseous medium into said gap.

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