(under subclass 30) Devices in which the hollow electrode or lead is provided with a closed conduit designed for the passage of a temperature modifying fluid therethrough.
(1) Note. In many of the devices in this subclass the electrode or lead is provided with two coaxial tubes one within the other and the fluid flows in one direction through the inner tube and in the opposite direction between the walls of the inner and outer tubes, but this subclass is not limited to such devices.
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31, where the electrode is in the form of a conduit which is in the form of a coil.
35+, and the subclasses specified in the notes thereto for devices under subclass 11 in which the temperature modifying means includes means for applying a temperature modifying fluid (e.g., a cooling fluid) to some part of the device, which part may be an electrode or lead.
