一次性采血针

Disposable blood sampling needle

Abstract

The utility model provides a disposable blood sampling needle which belongs to the technical field of medicine equipment. The utility model is composed of a needle head (1), a joint (2), a needle cylinder (3), a piston (4), and a pushing rod (5). The utility model is characterized in that the outer wall of the upper end of the needle cylinder (3) is sheathed with the joint (2) of the needle head (1); the bottom part of the needle cylinder (3) is provided with a circular hole (6) which can be penetrated by the pushing rod (5), wherein the diameter of the circular hole is less than the diameter of the piston (4). The utility model has the following positive and beneficial effects that after blood sampling is finished, the blood does need to be transferred into a test tube, the chance of the outward splash of the blood is reduced, the utility model is good for environment protection and is good for the health of operators, after the blood sampling is finished, the blood can be directly conveyed to be assayed without needing the assembly of the test tube, the cost of blood assay is saved and the disposable blood sampling needle simultaneously has a function of a syringe and can replace the syringe in use.
本实用新型提供了一种一次性采血针,属于医疗器械技术领域。由针头(1)、接头(2)、针筒(3)、活塞(4)、推杆(5)构成,其特征在于针筒(3)上端外壁上连有上端套有针头(1)的接头(2),在针筒(3)底部设有一个能使推杆(5)通过的直径小于活塞(4)直径的圆孔(6)。本实用新型有以下积极有益的效果:在采集血样完成以后,不需要将血液转移到试管内,降低了血液外溅的机会,既有利于环境保护,又有利于操作人员的健康;在进行采集血样后,不需要再配置试管,就可直接送检,节省了血液化验的成本;一次性采血针同时也具有注射器的功能,可以替代注射器使用。

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