An oval shunt safety indwelling needle

Abstract

The invention discloses an oval diversion safe indwelling needle. The indwelling needle comprises a sleeve base with a handle, a puncture steel needle, a sleeve, an extension pipe and a liquid injection connector. The two ends of the extension pipe are connected with the sleeve base and the liquid injection connector respectively. The liquid injection connector comprises a liquid injection connector body, a needle-free connector and a disinfection protective cap, wherein the needle-free connector and the disinfection protective cap are arranged on the liquid injection connector body, and the liquid injection connector body is connected with the extension pipe; the needle-free connector is used for receiving a syringe needle device used for infusion or is connected with a liquid medicine flow-out guiding pipe of an infusion container; the disinfection protective cap is placed on the needle-free connector and is a disinfection protective cap with 2% chlorhexidine; the puncture steel needle and the sleeve are arranged on the sleeve base, and the puncture steel needle is wrapped by the sleeve; a funnel part is arranged on the sleeve base, and the sleeve and the puncture steel needle are arranged on the funnel part of the sleeve base; a blood returning window is arranged on the sleeve base, and the cross section of the puncture steel needle is oval. The oval structure can reduce puncture injuries, occurrence of phlebitis is avoided, and the catheter indwelling success rate of the indwelling needle is increased.

Description

technical field [0001] The invention relates to an intravenous transfusion medical device, in particular to an indwelling needle. Background technique [0002] With the extensive clinical use of intravenous indwelling needles, it has brought a lot of good news to patients. Indwelling catheters have the advantages of reducing vascular damage, relieving patients' pain, opening up a vein "green channel" for the rescue of critically ill patients, and reducing the workload of nursing staff. They are widely used clinically. [0003] However, along with the extensive use of indwelling needles clinically, there have been a large number of accident reports of complications occurring after indwelling needles are indwelling. A series of statistical data shows that the most important factors leading to the failure of indwelling catheter indwelling are catheter blockage and phlebitis. During infusion intervals, since the opening of the cannula lumen is circular, as the patient's arm mo...

AI Technical Summary

Problems solved by technology

At this time, the blood cells and drugs in the blood will be adsorbed on the cannula wall, forming a fibrin sheath and embolism (microthrombus and drug embolism), which will lead to poor infusion flow rate the next day, and even blockage of the catheter, which directly affects the safety of the indwelling needle. safe use

[0004] In addition, the unfractionated heparin cap of the ordinary indwelling needle, because the puncture steel needle is sharp, can easily cause the silica gel of the heparin cap to directly cut into the body, and even cause granuloma, which brings risks to patients

There is also the risk of stabbing with sharp objects when nurses operate, which poses a great potential risk to the daily work of nurses

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