Novel sacculus cervical dilator

Abstract

The invention relates to a novel sacculus cervical dilator, which comprises a pipe and an inflatable air sac, and is characterized in that the head end of the pipe is provided with a guide head, and the guide head is hermetically connected to the head end of the pipe; a vent hole is formed in front end of the pipe adjacent to the guide head, the inflatable air sac is hermetically connected to the front end of the pipe, and the vent hole is positioned inside the inflatable air sac; a rod insertion cavity channel and an air inflation cavity channel are arranged inside the pipe, a pipe seat is provided with a port for an air inflation cavity and a port for a rod insertion cavity, the rod insertion cavity channel is communicated with the rod insertion cavity, and the air inflation cavity channel is communicated with the air inflation cavity; the vent hole is formed in the air inflation cavity channel at the front end of the pipe, and an air valve is arranged on the port of the air inflation cavity. The novel sacculus cervical dilator is simple in structure, reasonable in design, labor saving in operation and capable of effectively pinpointing and dilating cervical with small damage to a woman.

Description

technical field [0001] The present invention relates to a cervical dilator, in particular to a new type of balloon cervical dilator which dilates the cervix during obstetrics and gynecology operations or childbirth, ensures smooth operation or shortens the labor process, and relieves women's pain. It belongs to the medical field of obstetrics and gynecology. equipment field. Background technique [0002] The cervix of a woman is located in the lower part of the uterus. The length of the cervical canal of an adult woman is about 3 cm. The center of the cervix is ​​a long fusiform lumen that is slightly flattened from front to back. It is mainly composed of knot tissue and also contains smooth muscle fibers, blood vessels and elastic fibers. During obstetrics and gynecology operations such as ring removal, ring removal, induced abortion, uterine curettage and other operations, because the cervical opening is tight during operation, it is often necessary to use a cervical dilat...

AI Technical Summary

Problems solved by technology

By injecting a certain amount of normal saline into the inflatable tube, the inflation balloon is slowly stretched, so that the cervix expands. Since the inflation balloon is double-layered, the thickness of the balloon is reinforced, and it should not be broken by surgical forceps during use. There are the following defects: 1. During the operation, it is necessary to send the dilator inflation balloon to the cervix through hard instruments such as vaginal dilator and surgical forceps, which is very prone to damage to tissues such as the cavity mucosa; 2. To expand the inflation balloon by injecting water Finally, the plug needs to be unscrewed to allow the water in the capsule to drain freely, so that there is residual water in the capsule. When the cervical dilator is pulled out, the residual water in the capsule will continue to wade out, causing inconvenience; especially when the operation is not Be careful not to shrink the inflation balloon to an appropriate expansion capacity by pumping water when the inflation balloon is too large; third, there is no scale mark on the inflation tube, which makes it difficult for the doctor to confirm the exact depth of insertion; Reinforcement without support, easily deformed or slipped during the indwelling stage of the inflated balloon, which affects the efficacy

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