Blood sampling and infusion device

Abstract

The invention relates to the technical field of medical instruments, in particular to a blood sampling and infusion device which comprises a connector body, a connecting part and a blood sampling device, one end of the connector body is connected to an infusion end or a blood sampling end, a cavity is formed in the connector body, a pipeline part is arranged at the bottom of the cavity, and threads are arranged at the other end of the connector body; one end of the connecting part is provided with a connector matched with the threads of the connector body, the connecting part is connected to the connector body through the connector, and a conveying pipe is arranged in the middle of the connecting part. The blood collection device is detachably connected to the connecting part, a blood return cavity is formed in the blood collection device and comprises a first cavity, a second cavity and a third cavity which are communicated in sequence, and a needle head is connected to the lower portion of the blood return cavity; according to the connector, two operations of blood drawing and sampling and infusion are achieved through one-time needle insertion, pain of a patient caused by repeated needle insertion is reduced, it is guaranteed that the connector can be detached and separated from blood sampling and storage, and clinical medical staff can operate the connector conveniently.

Description

technical field [0001] The invention relates to the field of medical devices, in particular to a blood collection and infusion device. Background technique [0002] In clinical care, some tests require repeated blood draws from patients and need to connect blood collection needles. During the entire operation, the risk of needle stick injury and the workload of medical workers are increased. In addition, repeated punctures increase patient pain and risk of infection. Many patients also need to infuse the patient while drawing blood. [0003] Clinically, repeated blood draws and infusions are more common now. At present, the existing joints need to be punctured again, and because of the structural design, most of them are integrated structures, and the joint and the blood collection device cannot be disassembled at will. Thereby can cause pain to the patient; Simultaneously clinically cause medical personnel to operate inconvenience, therefore be badly in need of changing ...

AI Technical Summary

Problems solved by technology

At present, the existing joints need to be punctured again, and because of the structural design, most of them are integrated structures, and the joint and the blood collection device cannot be disassembled at will. This will cause pain to the patient; at the same time, it will be inconvenient for medical staff to operate clinically, so it is urgently necessary to change it in combination with the above problems

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