公开(公告)号：US07438861B2

公开(公告)日：2008-10-21

申请号：US11804279

申请日：2007-05-16

申请人： Remo Anton Hochstrasser ,  Dieter Voegelin ,  Frédéric Ran

发明人： Remo Anton Hochstrasser ,  Dieter Voegelin ,  Frédéric Ran

IPC分类号： B01L3/02

CPC分类号： B01L3/021 ,  B01L2200/147 ,  B01L2300/1827 ,  B01L2300/1888 ,  B01L2400/0487 ,  G01N35/10 ,  G01N2035/00425

摘要： A heatable pipette, with a needle has an inner channel defined by an inner wall, arranged to conduct electric current through the inner wall for resistively heating the inner wall. The needle has an outer wall, which is defined between the outer wall and the inner wall and connectable for providing pressure air into the outer channel. By conducting current directly through the inner wall, the inner wall itself operates as resistor. Particularly, if the inner wall is made of an appropriate material, for example of stainless steel, the ohmic resistance of the inner wall is not negligible even if the inner wall is very thin. Therefore, the inner wall can directly be used as resistor for resistance heating of the inner wall even if the needle is manufactured in small dimensions.

摘要翻译： 具有针的可加热移液管具有由内壁限定的内部通道，其布置成将电流传导通过内壁以电阻加热内壁。 该针具有外壁，该外壁限定在外壁和内壁之间，并且可连接用于将压力空气提供到外部通道中。 通过直接通过内壁传导电流，内壁本身作为电阻工作。 特别地，如果内壁由适当的材料制成，例如不锈钢，即使内壁非常薄，内壁的欧姆电阻也不可忽略。 因此，即使在小尺寸制造针的情况下，内壁也可以直接用作内壁的电阻加热用电阻器。