Safety syringe having needle holder capable of fixing secured and easy to drawback
AssigneeTaiject Medical Device Co., Ltd.
InventorsChin-Shu Huang, Tzu-Sheng Fan, Chien-Wei Chung
Life of this patent
Estimating the term…
Abstract
A safety syringe comprises a barrel, which has a body forming a receiving hole, a stop portion in the receiving hole. A needle holder has a hole therein, an elastic lock piece formed a claw at distal end, and a dragged portion. The needle holder is received in the receiving hole of the barrel for the claw can lock with the stop portion of the barrel. A supporter, which is slidable received in the hole of the needle holder for supporting the elastic lock pieces to make the needle holder fixed secured in the barrel. And a plunger set has a bumper to move away said supporter and withdraw said needle holder.
Claims9
A safety syringe, which is to mount a needle, comprising:
- a barrel having a body, a receiving hole in said body, a front opening at an end of said body and a stop portion in said receiving hole;
- a needle holder having a hole therein, an elastic lock piece having a claw at distal end and a dragged portion;
- said needle holder being to mount said needle thereon;
- said needle holder received in said receiving hole of said barrel for said claw can lock with said stop portion in said receiving hole;
- a supporter slidable received in said hole of said needle holder and located inside and support the elastic lock piece of the needle holder first, said supporter has a aperture;
- a plunger set having a bumper to move away said supporter and withdraw said needle holder.
Dependencies are inferred from the claim text.