The positive Negative Pressure of Yi Seed No exempt from Needles formula Zhu She Even and connect device, and it includes a room is formed with above Yi Jie Head, Guan Body, room bottom has a Drug liquid flow inletsOne Bomb Valve, Let are set in room Inner, have the portions a Inner sky Inter, divide Do to form the lower Open Sew of Open Sew With mono- on one on the bottom ends With of the ends Bomb Valve Top logical with the portions With Inner sky Inter phases Even, and can Brace Open and lead at the holes Open Like, lower Open Sew Zhang Open Time With Drug liquid inflow entrance EvenYi Twin lead to element , Let to Guide and set among the Inner Bu Kong Inter of what Bomb Valve, Shang what Shi Yong Time Ke Brace Open Open Sew With Xia Open Sew, and have a Lose liquid stream Dao Jie Head. When has used Bi Time, Shang the extensive Complex originals Like of Bomb Valve and Chong Xin Feng Closed, Xia Open Sew , Group Absolutely outside sky Gas and Drug liquid countercurrently.一種無正負壓免針式注射連接器,其包含一接頭,其管體上方形成有一容室,容室底部具有一藥液流入口;一彈性閥,設置在容室內,具有一內部空間,在彈性閥頂端與底端上分別形成一上開縫與一下開縫以與內部空間相連通,且可撐開而成開孔狀,下開縫張開時與藥液流入口連通;一雙向導通元件,設置於彈性閥的內部空間之中,於使用時可撐開上開縫與下開縫,且具有一輸液流道接頭。當使用完畢時,彈性閥恢復原狀而重新封閉上、下開縫,組絕外部空氣以及藥液逆流。
