Security-type venous indwelling needle

Abstract

The invention discloses a security-type venous indwelling needle. The security-type venous indwelling needle comprises an indwelling needle catheter assembly, a needle tubing assembly and a solution infusion joint assembly, and is characterized in that the catheter assembly comprises an indwelling needle catheter and a catheter base connected behind the indwelling needle catheter; the needle tubing assembly comprises a notch needle tubing and a needle bed, wherein the front part of the notch needle tubing is provided with a side notch, a notch steel needle is inserted in a catheter and the catheter base; the tail part is provided with the needle bed which is exposed out of the catheter base; a plastic joint matched with the inner wall of the catheter base is arranged between the rear part of the catheter base and the needle bed; a needle tip protective stainless steel elastic sheet with a back hook is arranged in the plastic joint; the notch steel needle runs through the needle tip protective stainless steel elastic sheet and the plastic joint and extends in the catheter. According to the invention, the plastic joint is added on the front end of a needle handle, the dangerous needle tip of the front end is packed automatically when the steel needle is pushed out, so that the steel needle with blood after a transfusion is prevented from accidentally injuring doctors or other persons, the possibility of infection of viruses remained on the tip end of the steel needle is reduced, and meanwhile the venous indwelling needle does not pollution the environment.

Description

technical field [0001] The invention relates to a medical device for infusion, in particular to a safety indwelling needle. Background technique [0002] Indwelling needle is a medical device that is often used in medical treatment in order to reduce the pain of patients and reduce the workload of medical staff when multiple infusion treatments are required within a certain period of time. Existing common indwelling needle mainly is made up of catheter, catheter base, needle tube and needle base, and the side of catheter base is connected with infusion tube. And existing safe indwelling needle, all the stainless steel card with hole is stuck with the stainless steel card that the outer diameter of needle tube deformation part is larger than steel needle diameter all knocks flat under the slotted hole of steel needle. When the patient performs infusion, the medical staff will puncture the needle tube and the soft catheter outside the needle tube together into the patient's v...

AI Technical Summary

Problems solved by technology

However, after the needle tube is pulled out, it contains the patient's blood and is exposed to the outside. Because there is no protective device on the top of the needle tube in the existing needle tube assembly of the ordinary indwelling needle, its sharp needle point is easy to pierce medical staff and patients without paying attention. Or other people, causing personal injury, and even leading to the transmission of some diseases, not only leaving a safety hazard, but also placing them at will will pollute the environment

However, the needle tube of the existing safety indwelling needle is likely to be broken after being knocked flat, causing new unsafe factors

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