Collecting device and method for uninterruptedly obtaining ova

Abstract

The invention provides a collection device and method for uninterruptedly obtaining ova, the device comprises an ova collection tube, a negative pressure compensation tube, a follicular fluid storage tank and a constant temperature incubator, the ova collection tube comprises a tube body with an opening at the bottom and a filter sieve arranged at the lower port of the tube body; an opening is formed in the bottom of a tube body of the negative pressure compensation tube and has the same diameter as the ovum collection tube; the follicular fluid storage tank is hermetically connected with the ovum collection tube and the negative pressure compensation tube; the constant-temperature incubator is a hollow box body which is provided with a heating device and is used for placing the follicular fluid storage tank as well as the ovum collection tube and the negative pressure compensation tube which are connected with the follicular fluid storage tank. According to the invention, uninterrupted ovum collection in the ovum collection operation is achieved, the collection tube does not need to be suspended for replacement, the efficiency of the ovum collection operation is improved, the in-vitro exposure time of ovum is shortened, the pollution risk of the ovum is reduced, the ovum development potential is improved, and subsequent ovum collection and culture operation is facilitated through the matched design of the filter sieve and the sterile culture dish.

Description

technical field [0001] The invention relates to the technical field of egg retrieval in assisted pregnancy treatment, in particular to a collection device and method for uninterrupted egg retrieval. Background technique [0002] In vitro fertilization and embryo transfer (in vitro fertilization and embryo transfer, hereinafter referred to as IVF-ET) is one of the important methods for the treatment of infertility. An important part of IVF-ET assisted pregnancy treatment is the egg retrieval operation. The egg needle is operated. [0003] The ovum retrieval needle is a commercial component, consisting of a puncture needle, a puncture needle handle, a puncture needle connecting tube, a negative pressure tube and a sealing plug. The end of the puncture needle connecting tube and the negative pressure tube run through a sealing plug. Connect the plug to the 15ml collection tube, and at the same time connect the other end of the negative pressure tube to the negative pressure su...

AI Technical Summary

Problems solved by technology

[0004] In IVF-ET technology, all women who receive assisted fertility treatment receive drug ovulation induction, and the average number of follicles with a diameter ≥ 14 mm can grow in each patient's ovary. About 15, the average volume of follicular fluid in each follicle is 2 -4ml, the total volume of follicle fluid of 15 follicles is about 30-60ml, plus some small follicles <14mm will be punctured at the same time during egg retrieval or the follicle cavity needs to be washed with culture fluid, each patient will extract about 40-70ml of follicles The volume of each collection tube is 15ml, so the number of collection tubes that need to be replaced for each patient is about 4-7 tubes, which means that the process of egg retrieval needs to be interrupted 3-6 times for each patient, which prolongs the operation time of egg retrieval. Increase the suffering of patients; repeated replacement and installation of collection tubes during the operation, and tube-by-tube search and pick-up of eggs under a stereo microscope greatly increased the exposure time of eggs and increased the risk of biological contamination; the process of searching and picking up at the same time The medium is carried out at room temperature (25°C) lower than normal body temperature, and the operation of eggs exposed to room temperature for a long time will easily damage their developmental potential

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