Elliptic cone threaded nozzle

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

Active Publication Date: 2015-03-04
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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  • Elliptic cone threaded nozzle
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Embodiment Construction

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

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

[0024] Among them, the cross-sectional shape of the thread 5 is arbitrary, such as trapezoid, triangle, arc, etc. Preferably, the cross-section of the thread 5 is a trapezoid, and the trapezoidal cross-section is adopted, which has a better guiding effect on sperm, compared with other horizontal The cross-sectional shape and trapezoidal design make the sperm posture more consistent.

[0025] In addition, in the multi-threaded thread 5, the height and width of each threaded thread 5 may b...

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Abstract

The invention relates to the field of biological cells, in particular to an elliptical cone threaded nozzle. The elliptical threaded nozzle is used in the sperm separation system of the flow cytometer, and includes a nozzle chamber and a sperm outlet; Road thread teeth. The elliptical cone thread nozzle provided by the present invention can improve the consistency of the posture of the sperm, thereby improving the accuracy of separating the sperm.

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. Before fertilization, X sperm and Y sperm are separated, and then combined with animal reproduction techniques such as artificial insemination, in vitro fertilization and embryo transfer, the sex of animal offspring can be controlled. This technique was successful in Lush's first experiment in 1925. Flow cytometry was born in the 1960s. In 1989, flow cytometry was successfully applied to rabbit sperm separation. Used in bovine sperm separation in 1993. The flow cytometry sperm separation method has been widely used at present. The flow cytometry sperm separation method is mainly based on the difference in the DNA content of X sperm and Y sperm. Each DNA is light-stained, and the sperm is arranged in a single row through a capillary ...

Claims

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Application Information

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Patent Type & Authority Patents(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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