A syringe needle is provided with a needle body consisting of a needle seat and a needle body, and an exhaust hole is arranged on the needle seat. The outer sleeve of the needle seat is provided with a rotating sleeve with a closed exhaust hole. The inner wall of the rotating sleeve opposite the exhaust hole is provided with a crescent-shaped elastic lining. The crescent-shaped elastic lining is arranged along the circumference of the rotating sleeve, and the rotating sleeve at one end of the elastic lining is provided with a relative exhaust hole The set air vent. By installing a rotating tube sleeve with an exhaust hole and a closed exhaust hole on the needle seat and a ventilation hole relative to the exhaust hole, the invention can make the ventilation hole align to the exhaust hole and release gas by rotating the rotating tube sleeve when preparing powder medicine which will produce a large amount of gas after dissolution, effectively avoiding pulling out the gas from the needle back and forth in the course of dispensing, and reducing the needle. The opportunity of pollution is reasonable in design, simple in structure, convenient in operation and good in use.
【技术实现步骤摘要】
注射器针头
本专利技术涉及一种医疗器械,特别涉及一种注射器针头。
技术介绍
注射器在使用过程中,由于有些粉剂药物溶解后会产生大量气体,配药过程会使气体和药物从针头处喷出或造成抽药困难。现有的处理方式是,在配药过程中来回拔出针头抽取气体,这样就会极大地增加了针头被污染的机率。
技术实现思路
本专利技术所要解决的技术问题是针对现有技术的不足,提供一种设计合理,具有排气功能的注射器针头。本专利技术所要解决的技术问题是通过以下的技术方案来实现的,本专利技术是一种注射器针头,其特点是,设有由针座和针体组成的针头主体,在针座上设有排气孔,在所述针座外套设有封闭排气孔的旋转管套,正对排气孔的旋转管套内壁上设有呈月牙状的弹性内衬,月牙状弹性内衬沿旋转管套的周向设置,月牙状弹性内衬一端的旋转管套上设有与排气孔相对设置的通气孔。本专利技术所要解决的技术问题还可以通过以下的技术方案来实现的,所述针座上设有旋转管套的旋转导向机构,所述的旋转导向机构包括沿针座外壁周向设置的导轨,在旋转管套的内壁上设有一圈与导轨相配合的凹槽。与现有技术相比,本专利技术通过在针座上设排气孔和封闭排气孔的旋转管套, ...
【技术保护点】
1.一种注射器针头,其特征在于:设有由针座和针体组成的针头主体,在针座上设有排气孔,在所述针座外套设有封闭排气孔的旋转管套,正对排气孔的旋转管套内壁上设有呈月牙状的弹性内衬,月牙状弹性内衬沿旋转管套的周向设置,月牙状弹性内衬一端的旋转管套上设有与排气孔相对设置的通气孔。
【技术特征摘要】
1.一种注射器针头,其特征在于:设有由针座和针体组成的针头主体,在针座上设有排气孔,在所述针座外套设有封闭排气孔的旋转管套,正对排气孔的旋转管套内壁上设有呈月牙状的弹性内衬,月牙状弹性内衬沿旋转管套的周向设置,月牙状弹性内衬一端的旋转管套上设有与排...
【专利技术属性】
技术研发人员:孙睿,严灵,
申请(专利权)人:连云港傲来珠宝首饰有限公司,
类型:发明
国别省市:江苏,32
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