Disposable metal rivet-free indwelling needle

Abstract

The invention discloses a disposable metal rivet-free indwelling needle. The disposable metal rivet-free indwelling needle comprises a steel needle, a catheter block and an indwelling catheter, wherein the inside of the catheter block is provided with a through hole so that the steel needle can penetrate through; the inner wall of the indwelling catheter and the outer wall of the steel needle aretightly attached, and no metal rivet is arranged inside the catheter block. The disposable metal rivet-free indwelling needle saves metal rivets to avoid chemical reaction between metal and infused medicine liquor as well as toxic substance; meanwhile, the disposable metal rivet-free indwelling needle is also applicable to patients having CT (computed tomography), avoids indwelling needle withdrawing due to influence of metal on CT and accordingly to relieves pain for the patients; besides, the disposable metal rivet-free indwelling needle can also avoid the problem of heavy metal pollution and improve the infusion safety.

Description

technical field [0001] The invention relates to a disposable indwelling needle without metal rivets, which belongs to the field of medical instruments. Background technique [0002] The indwelling needle, also known as the venous trocar, can reduce the pain caused by repeated venipuncture in children and the fear of injections, relieve the anxiety of parents, facilitate clinical medication, and reduce the workload of clinical nurses. The indwelling needle is easy to operate, suitable for puncture at any part, and is widely used in clinical practice. The core components of the indwelling needle include the catheter / cannula indwelling in the blood vessel, and the puncture guide core. When in use, the catheter and the needle core Puncture into the blood vessel together, and after the catheter has completely entered the blood vessel, the needle core is withdrawn, and the catheter is left in the blood vessel for infusion therapy. [0003] Indwelling needles in the prior art, suc...

AI Technical Summary

Problems solved by technology

Due to the existence of metal rivets, during the infusion process, the metal may react chemically with part of the liquid medicine, which affects the normal use of the indwelling needle and also affects the safety of the infusion. At the same time, the indwelling needle with metal rivets cannot be used for MRI patients. During the clinical operation, the steel needle rubs against the metal rivet, and there is a risk of chipping. In addition, heavy metals may exceed the standard, threatening the health of the infusion patients.

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