Trocar-guided disposable central venous puncture needle

Abstract

The present invention discloses a trocar-guided disposable central venous puncture needle. The trocar-guided disposable central venous puncture needle comprises a puncture needle core, a Y-shaped sleeve tube and a heparin cap, the puncture needle core is attached to the inner wall of the Y-shaped sleeve tube, the bottom end of the puncture needle core is provided with a transparent tube cavity capable of enabling blood to flow back, the bottom end of the transparent tube cavity communicates with the detachable heparin cap or a disposable injector, a guide wire channel is arranged on the side of the bottom seat of the Y-shaped sleeve tube, and the guide wire channel is connected with a guide wire booster. The present invention relates to the technical field of medical devices. The trocar-guided disposable central venous puncture needle is reasonable in design, easy in operation, high in security, greatly improves a success rate of puncture through the structure cooperation of the Y-shaped sleeve tube, avoids failure of guide wire placement due to body movement of patients and improper fixing by operators, reduces the technical difficulties of the operators, simultaneously, reduces vascular endothelial injury and direct puncture of blood vessels caused by sharp terminals of steel needles, and reduces injury and risks of patients.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a disposable central venous puncture needle guided by a trocar. Background technique [0002] Central venipuncture, a medical term, is suitable for patients who need long-term infusion but whose peripheral veins are difficult to puncture due to sclerosis and collapse; patients who need parenteral total intravenous nutrition; emergency treatment of critically ill patients and patients with difficulty in blood collection; central venous pressure measurement, etc. At present, the disposable venipuncture kit widely used in clinical practice is used for deep vein puncture and catheterization. First, the steel needle connected to the syringe is used to puncture. Push the guide wire from the syringe along the inner hole of the steel needle into the deep vein blood vessel, pull out the steel needle after a certain distance and leave the guide wire in the blood vessel to act as a ...

AI Technical Summary

Problems solved by technology

[0005] Aiming at the deficiencies of the prior art, the present invention provides a disposable central venous puncture needle guided by a trocar, which solves the problems of difficult insertion of the guide wire and complicated operation due to the difficulty of fixing the traditional steel needle puncture needle, and avoids the The traditional steel needle puncture needle has a large caliber and a sharp front end, which is easy to damage the vascular endothelium, and once it punctures an artery, it will cause a greater risk of injury

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