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Elliptic cone threaded nozzle

A thread and nozzle technology, applied in the field of biological cells, can solve the problems of low accuracy and achieve the effect of improving accuracy and consistency

Active Publication Date: 2014-01-29
大连金弘基种畜有限公司 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The existing nozzle allows some of the sperm that the tail enters first to be adjusted head-to-tail in the nozzle cavity 1, so that the posture of the sperm is kept as consistent as possible, and the optical consistency is improved, so that the accuracy of sperm separation can reach about 70%, but This accuracy rate is still low

Method used

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Embodiment Construction

[0022] The present invention will be described in further detail below through specific implementation examples and in conjunction with the accompanying drawings.

[0023] The elliptical cone thread nozzle that the embodiment of the present invention provides, as image 3 , 4 As shown, it includes a nozzle cavity 3 and a semen outlet 4; wherein, the nozzle cavity 3 is in the shape of an ellipse, and the inner wall of the nozzle cavity 3 is provided with multiple threads 5 protruding from the inner wall.

[0024] Wherein, the cross-sectional shape of the threaded teeth 5 is arbitrary, such as trapezoidal, triangular, arc-shaped, etc., preferably, the cross-section of the threaded teeth 5 is trapezoidal, and the trapezoidal cross-section is adopted, which has a better guiding effect on sperm. Cross-sectional shape, trapezoidal design makes the posture consistency of sperm higher.

[0025] In addition, in the multiple thread threads 5, the height and width of each thread thread...

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Abstract

The invention relates to the field of biological cells, and particularly relates to an elliptic cone threaded nozzle. The elliptic cone threaded nozzle is used in a sperm separating system of a flow cytometry. The elliptic cone threaded nozzle comprises a nozzle cavity and a sperm outlet, wherein the nozzle cavity is of an elliptic cone shape, and multiple passes of threads protruding out of the inner wall are arranged on the inner wall of the nozzle cavity. The elliptic cone threaded nozzle provided by the invention is capable of improving the consistency of sperm gestures, thereby increasing the accuracy rate of separating sperms.

Description

technical field [0001] The invention relates to the field of biological cells, in particular to an elliptical cone threaded nozzle. Background technique [0002] Separation of sperm is one of the important ways of biological sex control technology. Separation of X sperm and Y sperm before fertilization, and then combining artificial fertilization, in vitro fertilization and embryo transfer, can control the sex of animal offspring. This technique was successfully tested for the first time in 1925 by Lush. Flow cytometry was born in the 1960s. In 1989, the application of flow cytometry to rabbit sperm separation was successful. In 1993, it was used for the separation of bovine sperm. Sperm separation by flow cytometry has been widely used at present. Sperm separation by flow cytometry is mainly based on the difference in DNA content between X sperm and Y sperm. Each DNA is light-stained, and the sperm are arranged in a single row through the capillary. Separation into sing...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C12M1/00G01N15/14
CPCC12M21/06C12M23/38C12M47/04
Inventor 帅志强苏冠宇武光明陈飞
Owner 大连金弘基种畜有限公司
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