| 摘要 |
A safety intravenous injection device comprises an injection port, a guiding device, and an injection valve. The injection port comprises an injection tube, a slanting branch tube, and a step-rim seat. The injection tube is in fluid communication with the seat and the branch tube. The injection valve made of silica gel is disposed in the seat. A central part of the injection valve has a plurality of slits and is divided into a plurality of flap portions. The flap portions are free to flex under pressure, and resumes to an original state after pressure is relieved. Lower parts of the flap portions have downward convex curves. The guiding device has a sleeve section engaged with a step rim of the seat and a short tube having a lug on each of the two sides of its opening. The safety intravenous injection device may further comprise a lid.
|
