Assembling the Push Hemostatic Valve Arterial Indwelling Cannula

Abstract

The invention provides an assembled remaining needle suite provided with a bleeding stopping valve.The remaining needle suite comprises an outer catheter assembly, an inner steel needle assembly, a negative pressure blood return cavity and a cap.The outer catheter assembly is provided with a puncturing catheter, a catheter seat and a main catheter body; the inner steel needle assembly is provided with a steel needle body and a steel needle seat; the puncturing catheter is sleeved with the steel needle body ; the catheter seat is provided with a main cavity, the steel needle seat is assembled to the main cavity, the main catheter body is assembled to the main cavity, and the steel needle body penetrates through the main catheter body; the catheter seat is further provided with the bleeding stopping valve for making the main catheter body be opened or closed; the bleeding stopping valve is provided with a sliding foundation support, a sliding switch and a valve element, the first part is provided with a first guide groove, the second part is provided with a second guide groove, the first guide groove and the second guide groove are slidably assembled to the sliding foundation support, one end of the valve element abuts against the main catheter body, and the other end of the valve element abuts against the sliding switch.By means of the technology, the phenomenon of mass bleeding can be avoided, and contact between blood and air is insulated in time.The remaining needle suite has the advantages of being convenient to prepare, simple in structure, convenient to operate and safe and flexible to operate.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to an arterial indwelling needle for an assembled push type hemostatic valve. Background technique [0002] Arterial indwelling needles have many advantages. They are used for continuous monitoring of invasive arteries. They can observe the changes in blood pressure of patients in real time. They are highly accurate and can guide clinical treatment or patient rescue more effectively. They can be used for blood testing and avoid repeated punctures. vascular injury, reduce patient pain, prevent cross-infection, open up an arterial "green channel" for the rescue of critically ill patients, and reduce the workload of nursing staff. Therefore, arterial indwelling needles have been widely used clinically. [0003] However, during the manual puncture operation of the arterial indwelling needle in the prior art, it is inevitable that there will be a large amount of blood loss due...

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Problems solved by technology

[0003] However, during the manual puncture operation of the arterial indwelling needle in the prior art, it is inevitable that there will be a large amount of blood loss due to uncoordinated operation, which will not only pollute the environment, but also increase the risk of infection from patients to medical staff; When an operation is unsuccessful, due to blood accumulation in the blood return cavity, even after washing, the negative pressure effect will be lost when the blood return cavity meets water, and the blood return cannot be seen when the device is used again for puncture, and it is impossible to accurately judge whether the puncture has entered the blood vessel. The success rate of re-puncture is greatly reduced, and the needle has to be changed again, resulting in medical waste

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