Wick arrangement for an anesthetic evaporator
AssigneeDräger Medical AG & Co. KGaA
InventorKarl-Ludwig Gippert
Life of this patent
Estimating the term…
Abstract
A wick arrangement for an anesthetic evaporator includes a wick with a carrier material (2) that is essentially impermeable to gas provided with wick material (3, 4) on both sides. A great path length is provided for saturating the gas with anesthetic vapor in the smallest possible installation volume by providing flow channels such as helical flow channels (10, 11) extending helically on both sides of the wick. The gas flow is led in counterflow in the flow channels (10, 11) by a housing (9).
Claims20
A wick arrangement for an anesthetic evaporator, the wick arrangement comprising:
- a wick comprising a carrier material and wick material on each side of the carrier material, said carrier material being essentially impermeable to gas, said wick being provided with helically extending flow channels on both sides of the wick, the wick having deflecting means for deflecting gas flow such that the gas flow is led in one flow channel in one direction and the gas flow is led in another flow channel in an opposite direction, said flow channels being located adjacent to one another and separated by the wick.
A wick arrangement for an anesthetic evaporator, the wick arrangement comprising:
- an outer wall;
- carrier material within said outer wall;
- wick material on each side of the carrier material, said carrier material and wick material defining flow channels with wick material on each side;
- and
- a deflecting means for deflecting gas flow such that the gas flow is led over the wick material on one side of the carrier in one flow channel in one direction and the gas flow is led over the wick material on the other side of the carrier in another adjacent flow channel in another direction.
A wick and housing arrangement for an anesthetic evaporator, the wick and housing arrangement comprising:
- an outer wall defining a housing;
- a first gas channel for leading a gas flow out of said housing;
- a second gas channel for leading a gas flow into said housing;
- carrier material within said outer wall;
- wick material on each side of the carrier material, said carrier material and wick material defining a first flow channel supplying the gas flow to said first gas channel and defining a second flow channel for receiving the gas flow from said second gas channel, said first flow channel being between portions of said second flow channel and said second flow channel being between portions of said first flow channel;
- a deflecting means for deflecting gas flow from said second flow channel to said first flow channel such that the gas flow is led over the wick material in said second flow channel traveling in one direction and the gas flow is led over the wick material in said first flow channel traveling in an opposite direction.
Dependencies are inferred from the claim text.