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Uterine horn embryo-flushing needle suitable for sheep

A uterine horn and embryo flushing technology, which is applied in medical science, veterinary instruments, animal delivery, etc., can solve the problems of easy bleeding, hinder the industrial application of sheep embryo transfer technology, and high cost, achieve small damage, smooth embryo recovery, The effect of large liquid output

Inactive Publication Date: 2013-04-10
ANHUI AGRICULTURAL UNIVERSITY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Since the minimum outer diameter of the plastic hose is generally about 2.0-4mm, and the diameter of the tube is relatively thick, a hole with a diameter of about 2 cm must be pierced on the uterus with a hemostatic forceps before inserting the sheep uterine horn embryo tube into the uterus. The uterus of sheep is more damaged, easy to bleed, difficult to recover
And its outlet hole is a circular hole with a small aperture, which is prone to blockage during use
In addition, this product is a disposable product, and the cost is relatively high, which to some extent hinders the industrial application of sheep embryo transfer technology

Method used

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  • Uterine horn embryo-flushing needle suitable for sheep
  • Uterine horn embryo-flushing needle suitable for sheep
  • Uterine horn embryo-flushing needle suitable for sheep

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0024] figure 1 It is a uterine horn punching needle suitable for sheep, including a needle tube 1, a flexible tube 2 and a tail tube 3,

[0025] The needle tube 1 is a circular hollow tube with an outer diameter of 1.0 mm. The front part is a beveled needle point. The hole is a spiral hole that revolves around the wall of the needle tube, and its length is one circle around the wall of the needle tube ( figure 2 ), the width of the strip hole is 1 mm, and the edge of the strip hole is smooth and free of burrs. The front portion of the tail pipe 3 is a thin tube, and the rear portion is a flared opening. The silicone hose is a flexible hollow tube, and one end of the silicone hose is sleeved on the rear of the needle tube 1 ; the other end of the silicone hose is sleeved on the front of the tail pipe 3 .

[0026] In this embodiment, because the needle tube with a smaller diameter (1.0mm) is selected, it can enter the uterine cavity only by avoiding blood vessels and gently...

Embodiment 2

[0030] In the present embodiment, the needle tube 1 and the tail pipe 3 are directly transformed from veterinary needles ( Figure 4 ), the filter 4 is made of metal, and is provided with a 90-100 mesh copper mesh filter, and the filter 4 is connected with the tailpipe 3 by threads ( Figure 5 ). All the other structures are the same as in Example 1.

[0031] Production method: Select a veterinary injection needle with a length of 6-7cm and an outer diameter of 1.0-1.2mm, first cut off the connector connected to the syringe end with a file, then blunt the beveled end of the metal injection needle, and make the front end into a thread-like discharge Holes (the width of the thread is about 1mm is appropriate), the edge of the threaded liquid outlet hole should be processed and polished with a file and sandpaper to be smooth and free of burrs, the length of the threaded part is 1.5-2.5cm), and the inner diameter of the threaded part is suitable for the socket on the rear end. S...

Embodiment 3

[0033] exist Image 6 Among them, there are linear strip-shaped holes on the needle tube 1, which is more convenient during production and processing. All the other structures are with embodiment 1.

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Abstract

The invention discloses a uterine horn embryo-flushing needle suitable for sheep, which is used for recovering sheep uterine horn embryos. The uterine horn embryo-flushing needle comprises a needle tube, a connection tube and a tail tube, wherein the needle tube is a hollow tube, the front part of the needle tube is a bevel needle point, and the middle part of the needle tube is provided with a strip-shaped hole; the front part of the tail tube is a tubule, and the rear part of the tail tube is a horn-shaped opening; and the connection tube is a strip-shaped flexible hollow tube, one end of the connection tube is connected with the rear part of the needle tube, and the other end of the connection tube is connected with the front part of the tail tube. The uterine horn embryo-flushing needle also comprises a filter which is connected with the tail tube. The outside diameter of the needle tube of the embryo-flushing needle is small, so that the embryo-flushing needle causes small damages to the inner membrane of the sheep uterine horn; and the liquid yielding quantity of the strip-shaped hole on the needle tube is high, so that the embryo recovery is smooth.

Description

[technical field] [0001] The invention relates to an animal embryo transplantation tool, in particular to a uterine horn embryo punching needle suitable for sheep, which is mainly used for recovering early morula / blastocyst of sheep uterine horn during embryo recovery in superovulated sheep. [Background technique] [0002] In goat embryo transfer, the recovery of uterine embryos at a later stage of development is beneficial to improve the pregnancy rate of recipients after transfer. To recover the embryos that enter the uterine horn, the uterine horn must be washed, that is, the injection needle is inserted from the fallopian tube and the small bend of the uterine horn, and the embryo flushing fluid is injected towards the direction of the greater bend of the uterine horn, and recovered from the tail of the uterine horn punching needle Embryo fluid is washed, and embryos are picked up under a stereo microscope. [0003] At present, due to the lack of a complete set of embry...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): A61D19/04
Inventor 章美玲章孝荣张运海李运生刘亚陶勇方富贵随刘才张子军丁建平曹鸿国
Owner ANHUI AGRICULTURAL UNIVERSITY
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