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Plasma-generating device, plasma surgical device and use of a plasma surgical device

  • US 10,201,067 B2
  • Filed: 01/19/2018
  • Issued: 02/05/2019
  • Est. Priority Date: 07/08/2005
  • Status: Active Grant
First Claim
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1. A plasma-generating device, comprising:

  • an insulator sleeve having a distal end;

    an anode disposed distal to the insulator sleeve;

    a cathode having a tapered portion narrowing toward the anode, the tapered portion having a first portion disposed within the insulator sleeve and a second portion projecting beyond the insulator sleeve toward the anode;

    a plasma channel extending longitudinally between said cathode and through said anode and having an outlet at an end of the plasma channel;

    at least one intermediate electrode disposed between said anode and said cathode; and

    at least one coolant channel having at least one outlet at an end of the at least one coolant channel that is closer to the anode, whereby a coolant flowing through said at least one coolant channel can cool a portion of the device to which the at least one coolant channel is adjacent.

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