Anti -stab type amniotic fluid membrane rupturing needle

The utility model provides an anti -stab type amniotic fluid membrane rupturing needle, aim at solves traditional amniotic fluid membrane rupturing needle stabbed medical personnel or patient easily when using problem, particularly including hiding the membrane rupturing needle body in a casing, the afterbody of the membrane rupturing needle body is equipped with a piston body, the casing afterbody that corresponds is equipped with a sliding chamber, piston body and sliding chamber and piston body sliding sealed fit, sliding chamber communicates a compression chamber, the compression intracavity is equipped with pressured air, be equipped with the switch that a control pressured air got into sliding chamber and promoted the piston body motion simultaneously in the sliding chamber, realizestretching out fast of the membrane rupturing needle body, and be equipped with the spring between the tip of the membrane rupturing needle body and the the end part of the housing, compression springwhen the realization memb