An assisting device for cervical dilation

Abstract

The invention discloses an auxiliary device for dilating the cervix, which comprises an inner guiding tube and an outer guiding tube arranged nestedly. A cervical dilation balloon is arranged on the outer side of the outer guiding tube near its head end, and a vulva is arranged near the tail end. Limiting balloon, two water injection channels are arranged in the tube wall of the outer guide tube, and the two water injection channels are respectively connected with the cervical dilatation balloon and the vulva limit balloon, and there are two water injection channels on the tube wall of the outer guide tube, respectively. The water injection port Ⅰ and the water injection port Ⅱ connected by the channel, the outer side of the inner guide tube near its head end is provided with a uterine limit balloon, and the tail end of the inner guide tube is provided with a water injection channel set in the tube wall and the uterus The water injection port III connected with the limiting balloon, the tail end of the inner guide tube protrudes from the outer guide tube and connects with the drawing plate. The invention can accurately restrict the cervical dilatation balloon to the cervix, effectively promote the dilation of the cervix, and can properly dilate the internal os of the cervix without damaging the cervix, and is safe and convenient to use.

Description

technical field [0001] The invention relates to the technical field of medical auxiliary devices, in particular to an auxiliary device for dilating the cervix. Background technique [0002] Induction of labor refers to the termination of pregnancy by artificially inducing uterine contraction and cervical dilatation to expel the fetus and its appendages from the uterus due to reasons of the mother or the fetus. At present, the main methods of labor induction include rivanol induction and water bag induction. The success rate of induction of labor using rivanol is high, safe and reliable, but the disadvantage of this method is that a small number of pregnant women have fever during induction of labor; another disadvantage is the residual decidua, so that most pregnant women need curettage after induction of labor. The water bag induction method is used to inject normal saline into the water bag, and the uterus will automatically contract after the water bag is expanded by ext...

AI Technical Summary

Problems solved by technology

The success rate of induction of labor using rivanol is high, safe and reliable, but the disadvantage of this method is that a small number of pregnant women have fever during induction of labor; another disadvantage is that decidua remains, so that most pregnant women need curettage after induction of labor

The water bag induction method is used to inject normal saline into the water bag, and the uterus will automatically contract after the water bag is expanded by external force. At the same time, the water bag can compress the lower uterine segment to stop bleeding, but it cannot provide the mechanical expansion of the cervix required for labor induction, and the expansion of the cervix Determining the time of labor induction

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