Membrane rupturing device for gynaecology and obstetrics

Abstract

The invention discloses a membrane rupturing device for gynaecology and obstetrics, and relates to the technical field of medical instruments. Aims to solve many existing problems of membrane rupturethrough a needle head, the membrane rupturing device specifically comprises a bottom plate, the outer wall of the top of the bottom plate is fixedly connected with a lifting assembly, the outer wall of the top of the lifting assembly is fixedly connected with a pushing assembly, the outer wall of the top of the pushing assembly is fixedly connected with a connecting assembly, and the outer wall ofone side of the connecting assembly is fixedly connected with a membrane rupturing assembly. According to the membrane rupturing device, by arranging the membrane rupturing assembly, a second core rod rotates forwards, the circular arc edges of blades scratch an amniotic fluid membrane, meanwhile, the four blades move together to form a wound with the same diameter as a cutterhead on the surfaceof amniotic fluid, the second core rod rotates reversely, the right-angle edges of the blades hook the surface of the amniotic fluid membrane for winding and tearing, and the wound surface is enlarged; meanwhile, the size of the amniotic fluid membrane is decreased through pulling, and amniotic fluid drainage is accelerated; and compared with a needle head mode adopted in the prior art, the membrane rupturing device can have the dual functions of opening and extrusion drainage at the same time.

Description

technical field [0001] The invention relates to the technical field of medical devices, in particular to a membrane rupturer for obstetrics and gynecology. Background technique [0002] At present, most membrane rupturers use the needle puncture method, but the needle puncture method has the following problems. First, the feeding distance of the needle needs to be highly controllable, because the position of the fetus in the amniotic fluid environment is uncertain, and other Second, the opening area that can be formed by the needle is small, which makes it difficult to quickly empty the amniotic fluid. Third, once the opening is found to be small, the membrane must be ruptured again. The difficulty of breaking the membrane. [0003] After searching, the Chinese patent application number is 201710454159.4, which discloses a membrane disruptor for obstetrics and gynecology, which includes a vertically arranged cylinder with openings at both ends. The membrane breaking needle...

AI Technical Summary

Problems solved by technology

The above-mentioned patents have the following disadvantages: the method of puncturing with a needle has the following problems: 1. The feeding distance is difficult to control; 2. The opening area is too small and the flow rate of amniotic fluid is too slow; The change will increase the difficulty of membrane rupture

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