Safety-type vein retention needle

安全式静脉留置针

  • Inventors: BAI BAODONG
  • Assignees: 柏保东
  • Publication Date: February 29, 2012
  • Publication Number: CN-101934103-B

Abstract

The invention relates to a safety-type vein remaining needle which comprises a needle tube sheath, a conduit assembly and a needle tube assembly, wherein at least two outwards bulged beads are evenly distributed on the circumferential surface of the rear base of a needle stand body; a groove is arranged between the adjacent edges of the two beads; the lower end of each bead is provided with a positioning tooth, and the protruded top of one of the beads is also provided with a bulged lock knob; a puncture needle tube is arranged in the center of the front needle stand of the front end of the needle stand body; the front end of a tube body is provided with a spring seat; the front inner wall of the tube body is provided with inwards bulged positioning edges; the tube body is also provided with a lock knob positioning slot and a lock knob sliding slot which are parallel; the front ends of the lock knob positioning slot and the lock knob sliding slot are communicated with each other through a transition notch; the tail end of the lock knob sliding slot is provided with a covering bin for blocking the lock knob; and the tail end of the tube body is provided with an end plug; when in assembly, one end of a spring is arranged in the spring seat, and the other end thereof is abutted on the rear base of the needle stand body; and the lock knob is arranged in the lock knob positioning slot or enters the lock knob sliding slot through the transition notch.
本发明涉及一种安全式静脉留置针,包括针管护套、导管组件、针管组件,其中:在针座体的后部底座的圆周表面至少均匀分布两个向外凸起的凸楞,两凸楞相邻边之间呈现凹槽,每个凸楞下端设有一定位齿,其中一个凸楞的凸顶上还设有一凸起的锁钮;穿刺针管安装于针座体前端的前部针座中央;所述筒体前端设有弹簧座,筒体前部内壁内凸定位楞;筒体上还设有平行的锁钮定位槽和锁钮滑动槽,它们的前端通过过渡缺口相互沟通,在锁钮滑动槽末端设有遮挡锁钮的覆盖仓;筒体末端设有端塞;组装时,弹簧的一端位于弹簧座,另一端抵于针座体的后部底座;锁钮位于锁钮定位槽或通过过渡缺口进入锁钮滑动槽中。

Claims

Description

Topics

Download Full PDF Version (Non-Commercial Use)

Patent Citations (3)

    Publication numberPublication dateAssigneeTitle
    CN-101269253-ASeptember 24, 2008张亚根具有无针接口正压密闭阀的h型安全动静脉留置针
    CN-1207947-AFebruary 17, 1999刘文能Multifunctional safe infusion device with concealed wings
    CN-201783059-UApril 06, 2011柏保东Safety venous retention needle

NO-Patent Citations (0)

    Title

Cited By (0)

    Publication numberPublication dateAssigneeTitle