Safe injection needle

Abstract

The invention discloses a safe injection needle. The safe injection needle comprises a needle seat and a needle tube, the needle seat is connected with a safe protection sleeve through an elastic folding mechanism, a side wall of the needle seat is provided with two symmetrically arranged needle claspers, a hollow inner cavity of the safe protection sleeve is provided with two symmetrically arranged sheath buckles, the two sheath buckles are matched with the two needle seat claspers, the outer sides of the sheath buckles are provided with a sheath buckle blocker. Design of the safe injection needle adopts a double-needle seat clasper structure arranged on the needle seat, which is matched with a double-sheath buckle arranged in the inner cavity of the safe protection sleeve, a clamping process of the sheath buckles and the needle seat claspers is easy and convenient, the required pushing force is only about 0.5N, single-hand operation is achieved, and the outer sides of the sheath buckle is provided with a sheath buckle blocker, which can effectively prevents loosening between the sheath buckles and the needle clasper. The overall design of the safe injection needle is reasonable, and both the stability and the safety reach ideal effects.

Description

technical field [0001] The invention relates to the technical field of medical equipment, in particular to a safety injection needle. Background technique [0002] Comparative document 1, patent application number: 201410114478.7, application date: 2014.03.26, patentee: Wenzhou Beipu Technology Co., Ltd., this case discloses "a safety blood collection needle", including a needle seat and a penetrating needle One end of the double-ended needle tube is a venipuncture needle, and the other end is a cannula needle. It is characterized in that: the safety blood collection needle also includes a safety sheath, a connecting mechanism and a card holder. The card seat is fixed on the needle seat, the safety sheath is connected to the card seat through a connection mechanism, the safety sheath can rotate around the connection mechanism, the safety sheath is a hollow cavity, and At least one needle tube safety hook is arranged in the cavity. The safety sheath is a cylinder, the side ...

AI Technical Summary

Problems solved by technology

[0005] In the clinical use process, there are still many problems in the use process of the safety injection needles recorded in the prior art. 1. When the safety sheath is buckled in, a large force must be used. Difficulty; 2. There are certain defects in the engagement between the hook body structure and the needle tube. When subjected to a certain degree of external force, the two are prone to disengagement, and the stability and safety are not ideal; After the needle tube is engaged, the needle tube remains in a straight state, the bite strength between the hook body and the needle tube is not strong, and the needle tube still has room for movement in the hook body, resulting in poor stability of the needle tube locking structure; 4. In order to realize the convenience after use Lock the needle tip in the safety cover. Many patents add additional locking parts or increase the size of the ordinary injection needle seat, because the use of disposable products is very large, resulting in plastic waste and increased production costs.

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