Disposable obstetrical membrane rupture device

Abstract

The invention discloses a disposable obstetrical membrane rupture device which comprises an air bag, a piston pump, a sucking pipe, a sucking disc and a puncture needle, wherein the sucking pipe is in a slender tubular shape, and the sucking pipe and the piston pump are integrated; the front end of the sucking pipe is connected with the bell-shaped sucking disc, and the back end of the piston pump is connected with the air bag; a piston is arranged in the piston pump, and one end, which is positioned in the sucking pipe, of a needle body is fixed on the piston; and a plurality of sucking holes arranged on the sucking disc are communicated with the sucking pipe. The distance between the piston and a step part in which the sucking pipe is connected with the piston pump is equal to the length of the needle body extending out the plain end of the sucking disk, i.e., the membrane rupture depth; since the distance is set when the device is shipped out of the factory, when the disposable obstetrical membrane rupture device is used, the extending length of a needle head, i.e., the membrane rupture depth is certain, thereby overcoming the defect that the depth of the needle head can not be preferably controlled by experience to injure fetuses when an ordinary membrane rupture device is used.

Description

technical field [0001] The invention belongs to the clinical auxiliary equipment of obstetrics and gynecology, and in particular relates to a membrane rupturer for obstetrics of uterine weakness in active phase. Background technique [0002] In clinical obstetrics, for women with uterine atony and difficult uterine contractions in the active phase, artificial rupture of membranes is generally used to help give birth. There are many problems with the membrane rupturer used. For example, the patent No. 200620160991.0 is "an artificial membrane disruptor", the structure of which is: an operating handle is fixed on the needle sleeve guide tube, the membrane rupture needle passes through the needle sleeve guide tube, the needle handle and the rupture Membrane pins are fixedly connected. The membrane breaker is reasonable in structure, novel and practical, but has the problem of single function, that is, it only plays the role of breaking the membrane, and the drainage problem a...

AI Technical Summary

Problems solved by technology

[0005] The purpose of the present invention is to overcome the problems existing in the existing artificial membrane rupture device, and to provide a new type of disposable membrane rupture device, which solves the problems of membrane rupture and amniotic fluid drainage at the same time, and more importantly, can better control The depth of the needle penetration when the membrane is broken, good safety

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