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Suction-free middle-layer straight dual-channel test tube

A dual-channel, test tube technology, applied in sampling devices and other directions, can solve problems such as blockage and inaccurate blood sample test results, and achieve the effect of simple sampling process, saving medical equipment, and avoiding interference.

Active Publication Date: 2014-07-30
南通市崇川科技创业服务中心有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Because the impurities float on the surface of the serum, when the sampling needle extends downward from the nozzle to the serum to absorb the serum, once the needle passes through the floating layer of impurities, it will often be blocked, even if the sampling needle is partially blocked, it will also cause Inaccurate blood test results

Method used

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  • Suction-free middle-layer straight dual-channel test tube

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Embodiment Construction

[0012] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0013] The non-suction middle-level direct access double-channel test tube is composed of a splash cap 1, a rubber plug 2, a switch rod 3, a catheter plug 4, a catheter 5 and a catheter sleeve 6. The tube body 7 is a cylindrical glass tube with a closed lower end. A rubber plug 2 is plugged in the upper port of the tube body 7 , and the splash-proof cap 1 is set on the rubber plug 2 . The switch rod 3 is a T-shaped plastic rod. The upper end of the switch rod 3 is in the rubber plug 2 and bonded with the rubber plug 2 as a whole. The lower end of the switch rod 3 is in the conduit plug 4 made of butyl rubber. , and bonded with the catheter plug 4 as a whole. The material of conduit plug 4 is butyl rubber, and conduit plug 4 is divided into upper and lower two parts physically, and the upper part is the rounded truncated cone shape with big upper part a...

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Abstract

The invention relates to the technical field of vacuum blood collection, in particular to a suction-free middle-layer straight dual-channel test tube. The suction-free middle-layer straight dual-channel test tube consists of a splash-proof cap, a rubber plug, a switch lever, a conduit plug, a conduit and a conduit sleeve, wherein the switch lever is a T-shaped plastic rod; the upper end of the switch lever is positioned inside the rubber plug and is adhered to the rubber plug as a whole; the lower end of the switch lever is positioned inside the conduit plug made of butyl rubber; a conduit which is integrally fused with the bottom of the tube body is arranged inside the tube body; a lower end opening of the conduit extends out of the bottom of the tube body; the conduit plug is plugged into an upper end opening of the conduit; and the conduit plug is in interference fit with the conduit. The suction-free middle-layer straight dual-channel test tube can directly sample a central position of pure serum, so that the interference of an impurity layer of fibrin on the serum purity is avoided and the accuracy of a detection result of a blood sample is improved.

Description

technical field [0001] The invention relates to the technical field of vacuum blood collection, in particular to a suction-free middle-layer direct-taking double-channel test tube. Background technique [0002] Existing separation gel test tubes are all straight tubes with open upper ends and closed lower ends. After the blood is centrifuged, there will be a layer of impurities floating on the surface of the serum. Because the impurities float on the surface of the serum, when the sampling needle extends downward from the nozzle to the serum to absorb the serum, once the needle passes through the floating layer of impurities, it will often be blocked, even if the sampling needle is partially blocked, it will also cause The blood sample test results were inaccurate. This part of impurities is mainly composed of fibrin filaments in the blood, oils and small molecular colloids in the separating gel. Due to the variety of chemical and physical properties of the impurities, it...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01N1/10
Inventor 许小玲
Owner 南通市崇川科技创业服务中心有限公司
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