Visible artificial fetal membrane breaking device and use method thereof

Abstract

The invention provides a visible artificial fetal membrane breaking device which comprises an expanding device and a fetal membrane breaking device, wherein the fetal membrane breaking device furthercomprises an inner tube, an fetal membrane breaking needle, a pull rod, a camera and an outer tube; the pull rod drives a rubber plug to be in piston connection with the inner tube so as to form a negative pressure cavity in the inner tube; a spherical bulge is arranged at the front end of the inner tube; a plurality of sucking holes are formed in the outer side of the spherical bulge; the fetal membrane breaking needle is fixedly arranged on the spherical bulge; the outer tube is arranged on the outer side of the inner tube; and the expanding device is arranged on the outer side of the outertube. The device is simple in structure and convenient to use, a colpectasia state can be kept, cervix disinfection can be benefited, fetal membrane breaking operation is implemented on a fetal membrane separated from a fetal head through negative pressure, vasa previa of the fetal membrane and the color of an amniotic fluid can be conveniently observed, amniotic fluid sampling can be implemented,the whole process is under visible operation, and no damage can be done to fetuses or puerperae.

Description

technical field [0001] The invention belongs to the technical field of medical devices, and in particular relates to a visible artificial membrane rupture device and a use method thereof. Background technique [0002] Artificial rupture of membranes artificially intervenes to tear the amniotic membrane (membrane) at the cervix in order to observe the color of amniotic fluid, strengthen uterine contractions, and accelerate the progress of labor, such as figure 1 As shown, it is a schematic diagram of artificial membrane rupture in the prior art: after disinfecting the vagina 1 and sterilizing the cervix 3, between two uterine contractions, insert the left middle and index finger into the vagina 1 for guidance, and hold the tooth forceps 2 in the right hand , try to avoid the fetal head 6, tear the fetal membrane 4, and perform artificial rupture of the membrane to make the amniotic fluid 5 flow out. This operation is generally performed when the cervix is ​​dilated by about...

AI Technical Summary

Problems solved by technology

[0003] The whole manual process is blind breaking, and the risks and disadvantages are as follows: 1. The fetal membranes are excessively clamped by the tooth forceps, resulting in damage to the fetal scalp

2. If there are blood vessels on the fetal membranes on the scalp, it is a contraindication for artificial rupture of the membranes, and the membranes cannot be ruptured, and a cesarean section must be performed immediately, but the condition of the fetal membranes cannot be observed by blind rupture. The place where the fetal membranes are located in front of the blood vessels is artificially ruptured. The rupture of the membranes will cause damage to the blood vessels, and the fetus will die in a few minutes.

(The fetal membranes generally have no blood vessels, and only a very few have vascular previa. Sometimes B-ultrasound can make it, and if there is vascular previa, the mother will be notified to have a cesarean section. Once the B-ultrasound does not detect it and the membrane is artificially ruptured, it is easy to die 3. In the process of artificial rupture of membranes, the method of clamping and tearing the fetal membranes with toothed forceps is easy to accidentally clamp the vaginal wall or cervical wall, causing bleeding, and can only be transferred to caesarean section. Occurrences that greatly increase maternal suffering

4. The color of the amniotic fluid cannot be observed, and the progress of labor cannot be accurately judged. 5. Amniotic fluid samples cannot be collected effectively (for patients with suspected intrauterine infection, especially hepatitis B patients, it is necessary to test whether there is hepatitis B virus in the amniotic fluid), 6. No Conducive to disinfection of the cervix (disinfection of the cervix is ​​a necessary procedure before rupture of membranes), etc.

This structure is difficult to apply to the spiritual bed. 1. It uses a fixed column, a threaded rod and a lead screw to cooperate, and the handle needs to be continuously rotated during operation. In clinical practice, the area of ​​operation is limited to between the puerpera's legs. This structure is complicated and It is a rotating way in and out, which is not suitable for the needs of the operating space. 2. Most of the medical products that enter the human cavity are disposable consumable products. Complex structures are used to solve simple technical problems, which are out of touch with actual needs.

3. The tapered sealing ring 4 has a wide-mouth expansion shape. When entering the vagina and cervix, this structure with a large front and a small rear is obviously not suitable for entering the cavity of the human body. The process of entering is equivalent to touching the inner wall of the cavity Scratch the wall

When this structure is used, the needle directly operates on the fetal membrane. Although the problem of blind rupture is solved, the fetal membrane is not pulled up. Even if a pressure sensor is used, it will inevitably cause fetal head injury.

Defects such as 1. The protective straight tube is squeezed by the sphincter and is always in a state of extrusion, requiring medical staff to maintain the position manually. 2. While maintaining the position, it is necessary to operate the needle to detect the ruptured membrane, and the fetal membrane is close to the fetal head. Even in the visible state, it is difficult to effectively rupture the membrane and ensure that the fetal head is not damaged when one hand maintains the position of the protective straight tube and the other hand operates the needle. At the same time, it effectively protects the vaginal wall of the parturient and the scalp of the fetus, avoiding needle scratches during the operation, but it has no significant benefit on the operation state of ruptured membranes.

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