Blood collection tube with adjustable blood transfusion rate

Abstract

The invention discloses a blood sampling pipe capable of adjusting the blood transfusion speed. The blood sampling pipe comprises a blood collecting pipe, a soft plug and a plastic cover, and is characterized in that an insertion opening is formed in the top of the plastic cover, an annular pit is formed in the side wall of the part, close to the top, inside the plastic cover, an annular sealing groove for an opening port of the blood collecting pipe to be inserted is formed in the soft plug, the part, on the outer side of the annular sealing groove, of a plug body is embedded in the annular pit, a longitudinal groove extending to the annular pit from the edge is formed in the inner wall of the plastic cover, a longitudinal opening is formed in the side wall of the plastic cover, an elastic strip is arranged in the longitudinal opening and connected with the side, away from the top of the plastic cover, of the longitudinal opening, a protrusion protruding out of the inner face of the side wall of the plastic cover is connected with the free end of the elastic strip, and a space is reserved between the protrusion and the annular pit. A plate strip stretching out of the cover body is arranged on the plastic cover and provided with a notch used for clamping a blood transfusion pipe. By means of the blood sampling pipe, it can be avoided that negative pressure is generated in the vein near a puncture needle, and the discomfort generated by blood drawing is reduced.

Description

technical field [0001] The invention relates to a medical blood collection device, in particular to a blood collection tube with adjustable blood transfusion speed. Background technique [0002] my country is a country with a large population. With the improvement of living standards, people pay more attention to their own health. The medical consumables in disease treatment and preventive physical examination have increased greatly, especially the consumption of blood collection tubes used as the main basis for diagnosis. Most of the blood collection tubes are vacuumed and have medicine attached. After venipuncture, the other end of the puncture needle hose is inserted into the blood collection tube, and the venous blood is drawn into the blood collection tube by the internal negative pressure of the blood collection tube. Although it is fast, it is different from blood drawing with a needle tube. When drawing blood with a needle tube, the suction force can be adjusted throug...

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Problems solved by technology

[0002] my country is a country with a large population. With the improvement of living standards, people pay more attention to their own health. The medical consumables in disease treatment and preventive physical examination have increased greatly, especially the consumption of blood collection tubes used as the main basis for diagnosis. Most of the blood collection tubes are vacuumed and have medicine attached. After venipuncture, the other end of the puncture needle hose is inserted into the blood collection tube, and the venous blood is drawn into the blood collection tube by the internal negative pressure of the blood collection tube. Although it is fast, it is different from blood drawing with a needle tube. When drawing blood with a needle tube, the suction force can be adjusted through the force applied to keep the whole blood drawing process at a balanced negative pressure. It changes from high to low. In the initial high negative pressure, the blood in the vein near the puncture needle will be drawn out at a high speed, and a negative pressure will be generated in the vein near the puncture needle, and the tip of the needle will also adsorb the blood vessel wall. Increase the discomfort caused by blood drawing, still needs to be improved

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