Electric ovum peeling device and method

Abstract

The invention relates to an electric ovum peeling device and method. The electric ovum peeling device is composed of an ovum peeling tube, an operation handle, a power module, a control module, a display module, a power module, an internal memory, a sucker and / or a voice module and / or a pressure sensor and / or a control box and / or a foot switch controller. All the components can be assembled into an integrated or split type electric ovum peeler. A stepping motor is used for providing blowing and sucking power to peel off granule cells on the periphery of an oocyte. The electric ovum peeling device and method are high in precision, standardization and comfort level and have positive significance in avoiding relevant risks during ovum peeking, achieving standardization of ovum peeling and relieving labor intensity.

Description

technical field [0001] The invention relates to reproductive laboratory equipment, in particular to an electric egg stripping device and a method for stripping eggs, and belongs to the technical field of laboratory micromanipulation. Background technique [0002] Oocyte stripping is an important part of the daily work of the reproductive laboratory, including: stripping the granulosa cells of the cumulus complex after enzymatic predigestion, in order to assess oocyte maturity and facilitate micromanipulation, such as intracytoplasmic sperm injection ( Granulosa cells need to be stripped off before ICSI) and oocyte freezing; in vitro fertilization (IVF), such as microdrop IVF and test tube IVF, need to strip off the granulosa cells around the oocytes in order to evaluate the fertilization situation. Egg stripping plays an important role in the above operations and directly affects the effect of subsequent operations. [0003] Egg stripping tools have remained largely unchang...

AI Technical Summary

Problems solved by technology

In such a small volume of culture medium, it is almost impossible to control the elastic operating elements of the egg stripper through the operator's muscle strength to make the cumulus complex enter and exit the oviduct. It is almost impossible to adjust the speed properly without generating air bubbles.

[0010] Second, the operation is highly subjective and cannot be standardized

When manually peeling eggs, the operator makes judgments and adjustments based entirely on subjective experience, and cannot quantify the details of the specific operation, and accordingly cannot provide objective and specific data for the entire peeling process

Regardless of whether the embryo quality is poor or high quality, when trying to analyze the cause during the oocyte stripping process, no valuable conclusions can be drawn by reviewing the oocyte stripping operation process or comparing the operations of different operators

[0011] Third, the work intensity is high

Whether the existing egg peeler is operated with one hand or two hands, or controlled by the mouth, in order to obtain the best control effect, the operator maintains the confrontational balance that is always accompanied by the suction and blowing force conversion process, and the fingers or oral muscles are always in tension. state, resulting in physical fatigue of the operator

In addition, because the traditional egg stripper has the risk of damage to oocytes due to prolonged time, the risk of damage to oocytes caused by temperature fluctuations, and the significant risk of loss of oocytes, the operator’s psychological burden increases.

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