Assistance device for amniocentesis for antenatal diagnosis

Abstract

The invention discloses an assistance device for amniocentesis for antenatal diagnosis, and effectively solves the problem that operation is inconvenient when a medical worker conducts amniocentesis. The assistance device comprises a supporting plate; a guide groove is formed in the supporting plate; a semi-annular groove is formed in the supporting plate; a rotating cylinder is rotationally connected in the supporting plate; a spiral groove is formed in the rotating cylinder; a supporting column is coaxially arranged in the rotating cylinder; a guide column is arranged at the lower side of the supporting column; a fluid pumping device is detachably connected to the left end of the supporting plate; the fluid pumping device comprises a fixed cylinder; the lower end of the fixed cylinder is provided with an end cover; a waste fluid cylinder is connected to the lower end of the end cover in a sliding manner; the lower end of the waste fluid cylinder is provided with a primary teat; a lower piston is connected in the waste fluid cylinder in a sliding manner; an upper piston is detachably connected to the upper end of the lower piston; a main piston is detachably connected to the upper end of the upper piston; a connecting pipe is fixed onto the upper piston; and a secondary teat is fixed to the lower end of a secondary piston. The assistance device is novel in structure and high in usability, reduces steps when the medical worker conducts the amniocentesis, increases the working efficiency of the medical worker, and is conducive to use of the medical worker.

Description

technical field [0001] The invention relates to the technical field of auxiliary equipment for obstetric examination, in particular to an auxiliary device for amniocentesis for prenatal diagnosis. Background technique [0002] Amniocentesis is a method of prenatal diagnosis, generally suitable for prenatal diagnosis in the second trimester. Amniocentesis refers to the process of passing a long and thin needle through the pregnant woman's belly, uterine wall, and entering the amniotic fluid cavity under the guidance of ultrasound, and the process of extracting some amniotic fluid is called "amniocentesis"; the specific operation is to use B-ultrasound to determine After the patient's body, use a lumbar puncture needle with a needle core to pierce the correct position and penetrate into the patient's amniotic fluid cavity. At this time, first use a 2 ml syringe to suck 2 ml of amniotic fluid and discard it. This section of amniotic fluid may contain maternal cells Use 20 mill...

AI Technical Summary

Problems solved by technology

[0003] In view of the above situation, in order to overcome the defects of the prior art, the object of the present invention is to provide an auxiliary device for amniocentesis for prenatal diagnosis, which effectively solves the problem of inconvenient operation for medical staff during amniocentesis

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