Reducible uterine tube birth control sleeve

Abstract

The invention discloses a reducible uterine tube birth control sleeve and belongs to the technical field of female birth control devices. The reducible uterine tube birth control sleeve has a key technical point that the reducible uterine tube birth control sleeve comprises an elastic sleeve body, wherein the sleeve body sequentially consists of a sleeve mouth, a neck part, a body part and a tail part; the sleeve mouth is in a tubaeform and part of the edge of the sleeve mouth is thickened; the neck part is in a bottle neck shape and the size of the neck part corresponds to the diameter of the ampulla of a human uterine tube; the tail part is also in a tubaeform and an open shape; and the sleeve body is also provided with a liquid penetration hole with a hole diameter smaller than the diameter of a ovum. The reducible uterine tube birth control sleeve is simple in structure, convenient in installation and use, few in side effects, ideal in birth control effect and good in reducibility and is used for reducible birth control of the female.

Description

technical field [0001] The invention relates to a female fallopian tube contraceptive device, more specifically, it relates to a reversible fallopian tube contraceptive sleeve which prevents egg cells from entering the fallopian tube. Background technique [0002] At present, non-hormonal drugs for female contraception include barrier contraception, intrauterine devices, tubal sterilization, etc., which are all used clinically, each with its own advantages and disadvantages. Tubal sterilization is a widely used contraceptive method for women in clinical practice, mainly including tubal ligation, tubal ring, clip sterilization, tubal sticking, tubal embolism, etc. All kinds of tubal sterilization in the past mainly use various mechanical blocking effects to prevent sperm from entering the fallopian tube to achieve the purpose of birth control, but it does not affect the entry of egg cells into the fallopian tube. Although tubal sterilization is a simple, safe, and efficient ...

AI Technical Summary

Problems solved by technology

To make a micro-airbag device with a diameter of less than 1 mm when it is not inflated, and "insert" this micro-air bag device without supporting hardness into the interstitial part of the fallopian tube with a diameter of only 1 mm and a lack of ductility in the tube wall or In the narrow lumen of the isthmus, not only is the manufacture of this micro-device very difficult, but the implantation process is also very complicated and difficult

Similarly, it is extremely difficult and complicated to completely remove this micro-airbag through an operation space of only 1mm, and it is not feasible in reality. Because the lumen of the interstitial part of the fallopian tube is too small, the compression of the air bag is too tight, which is beneficial to fixation, but because the wall of the micro air bag is too thin, and it is placed in the interstitial part of the uterine horn, which lacks buffer space, it is very easy to cause the air bag to be affected. If the airbag wall is too thick, how can we make a micro airbag with a total diameter of less than 1mm? The implanted micro-balloon device is more difficult to take out due to long-term stimulation of adhesion stenosis, tissue ingrowth and other factors. Even if it is successfully taken out, the narrow lumen may be atresia due to injury and other factors, and it still needs to be examined under a microscope. Complicated tubal anastomosis and reconstruction, etc., therefore, the reproducibility in the original design sense cannot be achieved

In fact, even if the micro-airbag is not inflated, it has already occupied the small space of the interstitium or the isthmus, and becomes a solid embolism, which is not a real airbag structure in the original design sense. At the same time, the filling of the airbag cannot Observing the filling situation under direct vision can easily lead to poor filling of the air sac, or a slight overfilling can cause the air sac to rupture and fail, and even the fallopian tube can be damaged when the air sac ruptures

Moreover, this type of birth control method for the purpose of "intercepting" sperm into the fallopian tube, once the "intercepting" sperm fails, it will meet with the egg that can enter the fallopian tube, which may cause a huge risk of ectopic pregnancy, etc. A series of design requirements such as refolding, resulting in no research literature reports on this invention so far, it is only a theoretical assumption that is out of realization

[0004] Umbrella embedding of the fallopian tube and ovary embedding, the principle is: after the egg is produced by the ovary, there is a space distance for the egg to enter the fallopian tube. The egg does not have the ability to move freely like the sperm. The egg itself does not have the function of "walking". The spatial distance of the fallopian tubes is achieved through the fallopian tube fimbria "catching" eggs (picking up eggs) and then through the peristalsis of the fallopian tubes to achieve position changes. Using this spatial distance, the peritoneum separates the ovaries and fallopian tubes into two different spaces: the abdominal cavity With the retroperitoneum, the umbrella of the fallopian tube cannot "catch" eggs and prevent egg cells from entering the fallopian tubes. However, this operation is extremely complicated, traumatic, and has a high failure rate.

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