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Safety syringe

A technology of safety needles and pumps, applied in the direction of hypodermic injection equipment, etc., can solve problems such as infection, poor use effect, hazards, etc., and achieve the best safety and good injection efficacy

Inactive Publication Date: 2007-08-01
吕丰辉
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the injection syringe is used to inject the user's body parts, since the injection syringe is not designed to accommodate the needle tube during the medical injection process, the needle tube exposed to the outside after the injection is covered with a needle cover. Be careful with needles, causing needle sticks, which can cause great harm
[0005] 2. Poor use effect
Since the injection syringe has the injection function, and the needle tube of the injection syringe is designed to protrude, the needle tube and the needle cover must be fitted after injection. Therefore, it is a step that medical staff must keep in mind, but it is easy to cause Inadvertent operation leads to the occurrence of needle stick injury, endangering the infection of medical personnel using injection syringes

Method used

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Experimental program
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Embodiment Construction

[0018] The present invention will be further described below in conjunction with the accompanying drawings

[0019] As shown in Figures 1 and 2, the safety syringe of the present invention mainly includes an outer tube 10, a push rod 20, a push assembly 30 and a needle seat 40, wherein:

[0020] The outer tube 10 is provided with a hollow channel 11 inside, and the outer tube sleeve 12 of the convex end 121 of the chamber 120 is provided at the end, and the convex end 121 is provided with a through hole 122 on the through hole 122. A first abutting surface 123 and A second abutting surface 124 having a diameter larger than that of the first abutting surface 123 is extended from one end.

[0021] The push rod 20 is disposed in the hollow channel 11 of the outer tube 10 and pushes in a tight fit. A accommodating cavity 21 is provided in the accommodating cavity 21 . The accommodating cavity 21 is provided with an abutting surface 22 , and an annular groove is provided on the per...

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PUM

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Abstract

The invention discloses a safe needle cylinder, which comprises the following steps: outer pipe, push rod, pushing component and needle seat, wherein the hollow channel is set in the outer pipe and pipe sleeve is set on the outer pipe; the liner pad is set on the periphery of end part of push rod, which mates hollow channel tightly to push as well as piston, push component of pump in the pipe sleeve; the pump pierces the needle seat, which pushes piston to separate the breaking face of end part from the breaking face of needle seat and returns piston due to interior pressure; the structure pushes needle seat contracted into the cavity of push rod, which contains injected needle tube safely.

Description

Technical field: [0001] The invention relates to a safety syringe, in particular to a safety syringe capable of retracting a needle seat into the inside of a push rod accommodating cavity for safe storage. Background technique: [0002] In today's medical technology field, there is a common injection using an injection syringe to store the liquid inside the injection syringe. It mainly uses a hollow outer rod to set a push rod inside, so that the push rod pushes the storage. The liquid inside the injection syringe is injected and discharged from the needle sleeve sleeved at the end of the injection syringe to achieve the injection effect, so it is widely used in the medical field. [0003] The traditional common injection syringe has an outer rod, a push rod and a needle seat. When used for medical injection, the push rod of the injection syringe can use the thrust to directly accommodate the injection syringe. The liquid is injected and discharged from the needle tube slee...

Claims

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Application Information

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IPC IPC(8): A61M5/315
Inventor 吕丰辉
Owner 吕丰辉
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