CN209751293U

CN209751293U - embryo transplantation tool

Info

Publication number: CN209751293U
Application number: CN201821920899.9U
Authority: CN
Inventors: 刘志国; 李奎; 牟玉莲; 吴亚林; 王冰源
Original assignee: Institute of Animal Science of CAAS
Current assignee: Institute of Animal Science of CAAS
Priority date: 2018-11-21
Filing date: 2018-11-21
Publication date: 2019-12-10
Anticipated expiration: 2028-11-21

Abstract

The utility model discloses a embryo transplantation tool, which comprises an ovum moving tube and a sleeve, wherein the ovum moving tube comprises a catheter needle and a joint, two ends of the sleeve are respectively provided with a thick end and a thin end, and the outer diameter of the sleeve is gradually reduced from the thick end to the thin end; the inner and outer tube walls of the sleeve are smooth, and the opening parts at the upper end and the lower end are round. The embryo transplantation tool disclosed by the utility model is helpful for quickly and simply finding the opening of the umbrella part of the fallopian tube, has low requirement on the operation skill, and can be operated by the experiential person without embryo transplantation; the fallopian tube is soft and smooth, has small injury to the fallopian tube of a receptor, reduces the infection risk of the receptor due to pelvic hemorrhage and adhesion, improves the success rate of transplantation and the utilization efficiency of the receptor, and reduces the production cost.

Description

Embryo transplantation tool

Technical Field

The utility model relates to an embryo transfer technical field, concretely relates to embryo transfer instrument.

Background

Mammalian embryo transfer began in the 30's of the 20 th century and the success of porcine embryo transfer trials was first reported by Kvashickii in 1951. By the 60's of the 20 th century, techniques for surgically collecting and transferring embryos have been largely established. Many cloned pig tests have been carried out at home and abroad, and the cloning efficiency of pigs is basically maintained to be 0.5-3% according to statistics, wherein the success rate of embryo transplantation is an important factor influencing the efficiency of cloned pigs.

When the embryo transplantation of the pig is carried out, whether the opening of the umbrella part of the fallopian tube can be quickly found and opened is a key link for carrying out the embryo transplantation. In practice, it often takes a long time to find the opening of the umbrella of the fallopian tube in order to minimize unnecessary damage to the fallopian tube, and after finding the opening, great care is needed to insert the embryo transfer tube into the fallopian tube. The process easily causes secondary injury to the oviduct or uterus, leads to the problems of pelvic bleeding, uterine adhesion and the like of a receptor, not only can influence the success rate of transplantation, reduces the utilization efficiency of the receptor, but also improves the production cost.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an easy operation, quick, to the little embryo transplantation instrument of sow oviduct wound for solve embryo transplantation instrument operation complicacy, to the big problem of sow wound.

The utility model provides an embryo transfer instrument includes moving fallopian tube, sleeve pipe and syringe, move the fallopian tube and include pipe needle and joint, the joint with the tip fixed connection of pipe needle, the external diameter of pipe needle is less than 2.00mm, the external diameter of pipe needle is 0.30 to 2.00mm, the length of pipe needle is greater than 12.00 cm; two ends of the sleeve are respectively provided with a thick end and a thin end; the inner diameters of the sleeves are larger than the outer diameter of the catheter needle and smaller than or equal to the outer diameter of the joint; the inner and outer tube walls of the sleeve are smooth, and the opening parts at the upper end and the lower end are round; the catheter needle of the fallopian tube is inserted into the thick end of the sleeve and penetrates out of the thin end of the sleeve, the needle head of the catheter needle is exposed, and the joint of the fallopian tube is blocked by the thin end of the sleeve.

Preferably, the outer diameter of the sleeve tapers from the thick end to the thin end.

Preferably, the embryo transfer tool comprises a syringe, the syringe being provided on the adaptor.

Preferably, the syringe is a 1mL syringe.

Preferably, the fallopian tube is a plastic tube.

Preferably, the inner and outer tube walls of the fallopian tube are smooth, and the openings at the upper end and the lower end are round.

Preferably, the total length of the fallopian tube is 14.00cm, the joint of the fallopian tube has an outer diameter of 6.00mm and an inner diameter of 4.00mm, and the catheter needle of the fallopian tube has an outer diameter of 1.50mm and an inner diameter of 0.50 mm.

Preferably, the sleeve is a glass sleeve.

Preferably, the lower end of the sleeve is sharp, and the upper end of the sleeve is round and thick and is conical.

The inner diameter of the thick end of the sleeve is sleeved on the outer diameter of the joint, preferably, the length of the sleeve is 3.00cm, the inner diameter of the thick end is 8.00mm, and the outer diameter of the thick end is 9.00 mm; the inner diameter of the thin end is 4.00mm, and the outer diameter of the thin end is 5.00 mm.

Compared with the prior art, the utility model has the advantages of as follows: the utility model discloses be provided with and move smooth, the port mellow and full sleeve pipe of oviduct and pipe wall, in the use, look for and open the opening of acceptor's oviduct umbrella portion with the sleeve pipe earlier to establish the access way that moves the oviduct, the rethread sets up and inhales the embryo in the syringe that moves the oviduct upper end, will move the oviduct at last along the cover socketed oviduct, until getting into oviduct depths and pouring into the embryo into the oviduct. The embryo transplantation tool disclosed by the utility model is helpful for quickly and simply finding the opening of the umbrella part of the fallopian tube, has low requirement on the operation skill, and can be operated by the experiential person without embryo transplantation; the fallopian tube is soft and smooth, has small injury to the fallopian tube of a receptor, reduces the infection risk of the receptor due to pelvic hemorrhage and adhesion, improves the success rate of transplantation and the utilization efficiency of the receptor, and reduces the production cost.

Drawings

FIG. 1 is a schematic diagram of one embodiment of the embryo transfer tool provided in example 1.

Fig. 2 is a schematic structural diagram of the fallopian tube provided in example 1.

Fig. 3 is a schematic structural view of the bushing provided in embodiment 1.

FIG. 4 is a schematic view of another embodiment of the embryo transfer tool provided in example 2.

Detailed Description

Example 1

Example 1 provides an embryo transplantation tool, and the structure provided in this example 1 is described in detail below.

Referring to fig. 1, the embryo transfer tool comprises a fallopian tube 1 and a cannula 2, and a joint 11 is fixedly connected with the end of a catheter needle 12.

Referring to fig. 2, the total length of the fallopian tube 1 is 14.00cm, wherein the length of the catheter needle 12 is more than 12.00 cm; the joint 11 of the fallopian tube 1 has an outer diameter of 6.00mm and an inner diameter of 4.00mm, and the catheter needle 12 of the fallopian tube 1 has an outer diameter of 1.50mm and an inner diameter of 0.50 mm.

Specifically, the fallopian tube 1 is a plastic tube, and preferably, the material is PVC plastic resistant to high temperature of 190 ℃. The inner and outer tube walls of the fallopian tube 1 are smooth, and the openings at the upper and lower ends are round.

Referring to fig. 3, both ends of the sleeve 2 are respectively provided as a thick end 21 and a thin end 22, and the outer diameter of the sleeve 2 is gradually reduced from the thick end 21 to the thin end 22.

in order to realize that the inner diameter of the thick end 21 of the sleeve 2 is sleeved on the outer diameter of the joint 11, the inner diameters of the sleeve 2 are both larger than the outer diameter of the catheter needle 12 and smaller than or equal to the outer diameter of the joint 11; the inner and outer tube walls of the sleeve 2 are smooth, and the opening parts at the upper and lower ends are round.

Specifically, the sleeve 2 is a glass sleeve, and preferably, the material thereof is quartz glass with high temperature resistance. The sleeve 2 is tapered, and the opening portions of the upper end and the lower end are rounded. The length of the cannula 2 is 3.00cm, the inner diameter of the butt 21 is 8.00mm and the outer diameter is 9.00 mm.

referring to fig. 1, the catheter needle 12 of the fallopian tube 1 is inserted into the thick end 21 of the sleeve 2 and is passed out of the thin end 22, all the needle heads of the catheter needle 12 are exposed, and the joint 11 of the fallopian tube 1 is blocked by the thin end 22 of the sleeve 2.

Example 2

On the basis of example 1, example 2 is an improvement to the joint 11 of the fallopian tube 1 to provide another embryo transfer tool, the improvement consisting in:

Referring to fig. 4, the embryo transfer tool includes a syringe 3, and the syringe 3 is disposed on the joint 11 of the oviduct 1. The setting mode comprises a plurality of modes such as inserting, threaded connection, clamping, sleeving and the like, and even further comprises the syringe 3, the connector 11 and the catheter needle 12 which are integrally formed, wherein in the sleeving mode, a flexible rubber tube can be selected and used for respectively butting the output end of the syringe 3 and the connector 11.

Preferably, the syringe is a 1mL syringe commonly available on the market.

Example 3

Embodiment 3 provides an embryo transfer method using the embryo transfer tool provided in embodiment 2, the embryo transfer method comprising the steps of:

Step S1: providing a recipient sow and general anaesthetizing the recipient sow;

Step S2: arranging an operation incision 100 on the abdomen of a receptor sow, and leading the oviduct, the ovary and part of the uterus of the sow out of the incision 100;

Step S3: the thin end 22 of the sleeve 2 is used to be inserted into the opening 100 of the umbrella part of the fallopian tube of the sow;

Step S4: arranging a 1mL syringe 3 on a joint 11 of the oviduct 1;

step S5: sucking an embryo to be transplanted into a catheter needle 12 in a fallopian tube using a syringe 3;

Step S6: the catheter needle 12 of the fallopian tube 1 is inserted into the thick end 21 of the sleeve 2 and penetrates out of the thin end 22, and the needle head of the catheter needle 12 is continuously inserted until the catheter needle cannot be further inserted;

Step S7: using a syringe, the embryo is pushed from the fallopian tube 1 into the fallopian tube of the recipient.

Step S8: after the injection is finished, the oviduct 1 and the sleeve 2 are sequentially drawn out, the oviduct and the ovary of the sow are reset, and the wound incision 100 is sutured.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. an embryo transfer tool, which is characterized by comprising an oviduct (1) and a sleeve (2),

The fallopian tube moving (1) comprises a connector (11) and a catheter needle (12), wherein the connector (11) is fixedly connected with the end part of the catheter needle (12), the outer diameter of the catheter needle (12) is 0.30-2.00 mm, and the length of the catheter needle (12) is more than 12.00 cm;

Two ends of the sleeve (2) are respectively provided with a thick end (21) and a thin end (22);

the inner diameters of the sleeves (2) are larger than the outer diameter of the catheter needle (12) and smaller than or equal to the outer diameter of the joint (11); the inner and outer tube walls of the sleeve (2) are smooth, and the opening parts at the upper end and the lower end are round;

The catheter needle (12) of the fallopian tube (1) penetrates into the thick end (21) of the sleeve (2) and penetrates out of the thin end (22) to expose the needle head of the catheter needle (12), and the joint (11) of the fallopian tube (1) is blocked by the thin end (22) of the sleeve (2).

2. the embryo transfer tool according to claim 1,

The outer diameter of the sleeve (2) is gradually reduced from the thick end (21) to the thin end (22).

3. embryo transfer tool according to claim 1, characterized in that it comprises a syringe (3), said syringe (3) being arranged on said joint (11).

4. embryo transfer tool according to claim 3, wherein the syringe (3) is a 1mL syringe.

5. Embryo transfer tool according to claim 1, characterized in that the fallopian tubes (1) are plastic tubes.

6. The embryo transfer tool according to claim 1, wherein the inner and outer tube walls of the fallopian tube (1) are smooth and the openings at the upper and lower ends are rounded.

7. the embryo transfer tool according to claim 1, wherein the total length of the fallopian tube (1) is 14.00cm, the joint (11) of the fallopian tube (1) has an outer diameter of 6.00mm and an inner diameter of 4.00mm, and the catheter needle (12) of the fallopian tube (1) has an outer diameter of 1.50mm and an inner diameter of 0.50 mm.

8. Embryo transfer tool according to claim 1, wherein the sleeve (2) is a glass sleeve.

9. embryo transfer tool according to claim 1, wherein the length of the cannula (2) is 3.00cm, the butt (21) having an inner diameter of 8.00mm and an outer diameter of 9.00 mm; the inner diameter of the thin end (22) is 4.00mm, and the outer diameter is 5.00 mm.