Pre-filled disposable syringe

Pre-filled disposable syringe

  • CN 103,961,767 A
  • Filed: 01/31/2013
  • Published: 08/06/2014
  • Est. Priority Date: 01/31/2013
  • Status: Active Application
First Claim
Patent Images

1. the deserted syringe cylinder of pre-filling type, comprising:

  • One shields and sustain cylinder, it includes the outer tube wall and the inner tubal wall that extend vertically, and shield and sustain a two ends and form respectively a syringe needle installation portion and a holding end at this, and shield and sustain at this that cylinder is inner to be formed one and put tube space, form one against shoulder at this radially tube wall of putting contiguous this syringe needle installation portion of tube space, be formed with a hole of inserting of opening and being communicated with this and putting tube space at the axial tube wall of this holding end;

    One fills out pencil, it is for stablizing the made body of had an X-rayed material of passivity, and the corresponding tube space of putting that is immobilizated in this and shields and sustain cylinder, this is filled out pencil and has respectively a consent and a push rod group entrance at two ends, fills out inner formation of pencil and is communicated with respectively one of this consent and this push rod group entrance and puts medicine space at this;

    One batching pig, it fixedly clogs the consent of filling out pencil in this with one end, and with other end correspondence be resisted against this shield and sustain cylinder against shoulder;

    One push rod group, it includes a push rod and a thromboembolism, and this thromboembolism can be incorporated into the front end of this push rod, and this push rod group correspondence is arranged in this push rod group entrance of filling out pencil and can be airtightly fills out pencil and carry out the action of forward and backward pushing or pull along this;

    One syringe needle group, described in its correspondence is arranged at, shield and sustain cylinder syringe needle installation portion.

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