Cleaning swab and application thereof to haemal cell analyzer

Abstract

The invention discloses a cleaning swab and application thereof to a haemal cell analyzer. The cleaning swab comprises a main body, wherein the main body has a first surface and a second surface; a centering hole is formed from the first surface to the second surface, is enclosed by a peripheral wall surface and a bottom surface, and penetrates the bottom surface and the second surface to form a puncture channel; the puncture channel is provided with a puncture hole and a cleaning cavity, which are communicated with each other; the main body is provided with a liquid inlet interface and a liquid outlet interface which are communicated with the cleaning cavity; the puncture hole has an axis; the peripheral wall surface comprises a guide surface connected with the bottom surface; the guide surface and the bottom surface are respectively intersected with a plane passing through the axis to form a first line segment and a second line segment; and the first line segment has a slope relative to the second line segment, so that a test tube can slide along the guide surface to the bottom surface. The cleaning swab can simultaneously meet puncture requirements of a common test tube and an injection test tube in a common-precision automatic sampling system, the cost is reduced, and the operation is simple.

Description

technical field [0001] The present invention relates to a cleaning swab. Background technique [0002] With the time-saving, labor-saving and safety requirements put forward by doctors for blood cell analyzers, the automatic sample counting function was born. How to ensure that automatic sampling can support common test tubes (such as figure 1 shown) and injection tubes (such as figure 2 Shown), become a new demand for hematology analyzer manufacturers. [0003] The pierceable area a of the ordinary test tube is different from the pierceable area b of the injection test tube (the puncture area of ​​the injection test tube is smaller than that of the ordinary test tube), so the automatic sample injection of the hematology analyzer must meet the needs of supporting two test tubes at the same time. How to ensure that the puncture needle can penetrate into the pierceable area can ensure normal sampling. [0004] There are currently two methods to ensure that the puncture ne...

AI Technical Summary

Problems solved by technology

[0007] The disadvantage of method 1) is: the cost is high, and the mechanism needs to be re-calibrated and adjusted after a period of use, and the maintenance cost is high

The disadvantage of method 2) is: the operation is cumbersome, and the user needs to replace the swabs according to different test tube types. In addition, one hematology analyzer is equipped with two sets of swabs, which also increases the cost.

Images