Two-stroke liquid discharging needle
The utility model discloses a two-stroke liquid discharging needle which belongs to the biochemical and medical fields. The two-stroke liquid discharging needle comprises a needle sleeve and two needle tubes which are arranged in the needle sleeve, parallel to each other and symmetric with each othe...
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| Format: | Patent |
| Sprache: | chi ; eng |
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| Zusammenfassung: | The utility model discloses a two-stroke liquid discharging needle which belongs to the biochemical and medical fields. The two-stroke liquid discharging needle comprises a needle sleeve and two needle tubes which are arranged in the needle sleeve, parallel to each other and symmetric with each other in the axial direction, wherein the needle sleeve is cylindrical; two axial through holes for accommodating the needle tubes are formed in the needle sleeve; the axes of the axial through holes are positioned on the diameter line on the cross section of the needle sleeve; an included angle between the liquid outlet end of each needle tube and the axis of the needle sleeve is 10 to 15 degrees; the liquid discharging end is totally 1/54 to 1/56 long; an included angle between the liquid feeding end of each needle tube and the axis of the needle sleeve is 45 to 50 degrees; and the liquid feeding end is totally 1/13 to 1/14 long. The two-stroke liquid discharging needle is applied to an elution part of a chemilumines |
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