Novel ovum withdrawing needle with ovarian follicle curette

Abstract

The invention provides a novel ovum withdrawing needle with an ovarian follicle curette. The novel ovum withdrawing needle comprises an ovum withdrawing needle, a vacuum suction hose, a rinsing hose and a T joint, wherein the ovum withdrawing needle is connected with one end of the T joint, the vacuum suction hose is connected with a second port of the T joint, the rinsing hose is connected with a third port of the T joint, the other end of the vacuum suction hose is connected with vacuum suction equipment, the other end of the rinsing hose is connected with rinsing equipment, the curette is arranged inside the ovum withdrawing needle, one end, connected with the ovum withdrawing needle, of the T joint serves as a telescopic handle, and the handle is fixedly connected with one end of the curette. The curette is arranged inside the ovum withdrawing needle to curette ovarian follicle walls instead of the traditional ovum withdrawing needle head, and thus, breakage to the ovarian follicle walls caused by curettage is prevented; the curette is fixedly connected with the telescopic handle, can conveniently outstretch from or shrink into the ovum withdrawing needle and can perform curettage under the condition of not affecting puncture, vacuum suction and rinsing of the ovum withdrawing needle; and a shape of a curette head can be used for enlarging ovarian follicle wall curettage area, and thus, the ovum yield is increased.

Description

technical field [0001] The invention relates to the technical field of medical appliances, in particular to a novel ovum retrieval needle with a follicle scraper. Background technique [0002] Egg retrieval is one of the key steps in in vitro fertilization and embryo transfer. In order to successfully obtain egg cells, medical personnel need to safely remove the egg cells from the ovary by physical means and maintain the activity of the egg cells so that the obtained egg cells can be successfully fertilized. During the egg retrieval operation, it is necessary to perform a puncture operation under the monitoring of imaging equipment, directly reach the ovary to absorb the follicle fluid containing the egg cells, and then send the follicle fluid to the embryo room to observe whether the egg cells are obtained under a microscope. Follicle scratching was proposed in 2002 as a small technique for egg retrieval. In 2019, this technique was written into the European Oocyte Retriev...

AI Technical Summary

Problems solved by technology

[0004] In the prior art, the ovum retrieval needle has only one cutting surface, and it is sharp. Considering that the range of scratching may not be enough, and some experts worry that the follicle wall may be damaged by scratching

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