07-02-2019 дата публикации
Номер: US20190038847A1
Принадлежит:
The invention relates to a Safe Syringe comprising a barrel, a needle seat and a plunger, wherein the needle seat has a hook rod, a linkage deformation portion and a barrel clamping portion; and the plunger has a rod body, and a hook insertion hole which can be sleeved with the hook rod of the needle seat and compress the linkage deformation portion for elastic deformation such that the barrel clamping portion of the needle seat is not clamped into the seat clamping slot of the barrel, and the hook insertion hole can hook the hook rod of the needle seat to move the needle seat. The Safe Syringe can allow stable positioning and quick pullback of the needle seat and effectively reduce liquid medicine residue. 1. A Safe Syringe , comprising:{'b': 1', '11', '12', '13', '14, 'a barrel () having a barrel body (), an accommodating chamber (), a seat mounting hole () and a seat clamping slot ();'}{'b': 20', '21', '13', '1', '22', '24', '25', '24', '26', '25', '14', '1, 'a needle seat () having a seat body () mounted in the seat mounting hole () of the barrel (), a needle hole (), a hook rod (), a linkage deformation portion () connected to the hook rod (), and a barrel clamping portion () connected to the linkage deformation portion (), linked thereby and capable of being clamped into the seat clamping slot () of the barrel (); and'}{'b': 3', '31', '41', '24', '20', '25', '26', '20', '14', '1', '41', '24', '20', '20, 'a plunger () having a rod body (), and a hook insertion hole () which is capable of being sleeved with the hook rod () of the needle seat () and compressing the linkage deformation portion () for elastic deformation such that the barrel clamping portion () of the needle seat () is not clamped into the seat clamping slot () of the barrel (), the hook insertion hole () being capable of hooking the hook rod () of the needle seat () to move the needle seat ().'}220272225. The Safe Syringe according to claim 1 , wherein the needle seat () has a recessed chamber () ...
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