公开(公告)号：US11623047B2

公开(公告)日：2023-04-11

申请号：US16756780

申请日：2019-05-29

申请人： QATAR UNIVERSITY

发明人： Sami Alkhatib ,  Faris Tarlochan

IPC分类号： A61M5/31 ,  A61M5/32 ,  A61M5/50

摘要： To prevent accidental needle stick injuries, a syringe has a plunger configured to pull the syringe into the syringe barrel after clinical use. The syringe has an additional safety feature that restricts subsequent movement of the plunger. After the needle has been retracted in its entirety within the barrel of the syringe, movement of the plunger is restricted by a two-part locking mechanism, a notch on the plunger and a T-shaped slot on the barrel with a one-way catch section to prevent the needle tip from being pushed accidentally through the barrel wall.

公开(公告)号：US11413401B2

公开(公告)日：2022-08-16

申请号：US16295462

申请日：2019-03-07

申请人： QATAR UNIVERSITY

发明人： Faris Tarlochan ,  Sami Alkhatib

IPC分类号： A61M5/32 ,  A61M5/50 ,  A61M5/315 ,  A61M5/31

摘要： To prevent accidental needle stick injuries, a syringe has a plunger configured to pull the syringe needle into the syringe barrel after clinical use. The syringe has an additional safety feature that restricts subsequent movement of the plunger. After the needle is pulled entirely into the barrel, movement of the plunger is restricted by a notch on the barrel to prevent the needle tip from being pushed accidentally through the barrel wall.