A disposable collection needle capable of synchronously collecting multiple tubes of venous blood samples

Abstract

The invention provides a disposable collection needle capable of synchronously collecting multiple tubes of venous blood samples, comprising a connecting seat, the bottom of the connecting seat is provided with a diversion hole communicating with the puncture needle, and the inside of the connecting seat is rotatably connected with a sealing plate, the sealing plate The outer side of the adjustment plate is connected with a swivel ring, the front of the adjustment plate is provided with tooth segments corresponding to the teeth, the inside of the fixed pipe is movably inserted with a positioning rod inserted into the inside of the adjustment plate, and the outer side of the positioning rod is fixedly connected with a floating plate. The suction component pumps air from the connecting seat and the puncture needle, and the floating plate drives the positioning rods to move up under the action of the suction force. After all the positioning rods leave the positioning grooves, the adjustment plate will move under the action of the spring and pass through the teeth. The segments and teeth drive the swivel to rotate, and the swivel drives the sealing plate to rotate through the connecting plate, so that the diversion hole is opened. By setting the positioning rod and the sealing plate, the suction force in each puncture needle is guaranteed to be consistent, thereby ensuring Consistent synchronization of blood sampling across multiple needles.

Description

technical field [0001] The invention belongs to the technical field of venous blood sample collection, in particular to a disposable collection needle capable of synchronously collecting multiple tubes of venous blood samples. Background technique [0002] In the medical system, in order to obtain the patient's human physiological and pathological information to obtain a more accurate diagnosis, it is often necessary to collect blood samples from the patient. Common blood samples are collected from subcutaneous blood, venous blood and arterial blood. Among them, venous blood can be used for Hematology, blood endogenous pathogens and other related subject indicators are tested in detail, so they are widely used in clinical practice. [0003] In the collection of venous blood samples, the method of multi-tube venous blood sample collection is sometimes used, that is, in one collection device, it is equipped with multiple collection puncture needles and pipelines, and the blood...

AI Technical Summary

Problems solved by technology

[0003] In the collection of venous blood samples, the method of multi-tube venous blood sample collection is sometimes used, that is, in one collection device, it is equipped with multiple collection puncture needles and pipelines, and the blood sample is drawn by suction, but in the process of collection , multiple puncture needles and the suction force in the pipeline are not all the same, and synchronous collection cannot be realized. Therefore, there will be inconsistent blood sample volumes drawn by each puncture needle, which will affect subsequent blood sample detection

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