CN211497625U

CN211497625U - Pipettor moves ovum needle adapter

Info

Publication number: CN211497625U
Application number: CN201921757890.5U
Authority: CN
Inventors: 刘晓
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-10-20
Filing date: 2019-10-20
Publication date: 2020-09-15
Anticipated expiration: 2029-10-20

Abstract

The utility model discloses a pipettor ovum moving needle adapter, which comprises a gun head interface, a fastening nut and a sealing rubber ring group; the gun head interface, the fastening screw cap and the sealing rubber ring group are all of a revolving body structure provided with through holes along the axial direction, the fastening screw cap is sleeved on the front part of the gun head interface and is connected with the gun head interface through threads, and the sealing rubber ring group is arranged in the inner cavity of the fastening screw cap and is tightly pressed between the gun head interface and the fastening screw cap; the beneficial effects of the utility model reside in that, the utility model discloses a various ovum needles that move that the adapter can constitute one set of simple and convenient pipettor and move ovum needle system compares original method, realizes convenient and fast more accurately high-efficiently that the follicle moves to get, the processing of oocyte, embryonated egg, blastocyst etc. various embryos with move and get, separation granular cell has guaranteed the activity of embryo in the operation, has improved embryo's processing and has moved the efficiency and the reliability of getting the operation.

Description

Pipettor moves ovum needle adapter

Technical Field

The invention relates to the technical field of biomedicine, in particular to an egg moving needle adapter of a liquid transfer device.

Background

At present, in the treatment of mammalian embryos or test tube infant embryos in scientific research activities, the typical method is a mouth suction tube method for follicle treatment and removal of various ova, oosperms or embryos in various stages, the method is time-consuming and labor-consuming, and needs to be repeatedly practiced to master related technical requirements, the method is also used for treatment by an egg stripper, the method needs to purchase a special egg stripper and matched consumables, needs to be practiced to a certain extent, and is difficult to control the precision. In such laboratory, regardless of scientific research or clinic, a large number of various common pipettors are provided, the pipettors with different measuring ranges are very simple and familiar to embryo operators, the key operation precision is also guaranteed, and a large number of egg moving needles originally used for oral suction tubes or egg peelers are provided, but the conventional egg moving needle is not directly used on the common pipettor under the current condition, if the problem is solved, the embryo processing operation is greatly facilitated, the operation precision and accuracy are improved, the success rate of the experiment is guaranteed, and how to solve the problem is required.

At present, in scientific research and clinical work needing to treat and transfer mammalian embryos, embryos are treated by a mouth suction tube method conventionally, namely, a control microscope and an operation needle are controlled by one hand, the operation needle is connected with one end of a pressure tube, the other end of the operation needle is directly connected into an opening of an operator, the pressure change in the opening is utilized to drive the pressure change in the operation needle, the purposes of transferring and releasing ova and separating granular cells are achieved, the method is time-consuming and labor-consuming, repeated training is needed, the accuracy cannot be guaranteed, and the key is that the safety of the embryos and the operator cannot be guaranteed. In addition, in the current reproductive medicine embryo treatment, a special egg stripper is provided, namely, a special device is used for connecting a specially-matched egg moving needle, an embryo is sucked into an operation needle tube and blown repeatedly to achieve the aim of separating a negative ovum and granular cells around the ovum. However, in such embryo processing laboratories, there are a large number of common pipettors with various ranges, these pipettor operators are often familiar with, and the operation precision is also relatively high, and many egg-moving needles in scientific research can be obtained by customers simply pulling and processing bought various operation needle blanks by alcohol lamps, and are relatively easy to obtain.

Disclosure of Invention

1. Technical problem to be solved

The technical problem to be solved by the invention is to provide a pipettor ovum transferring needle adapter, which utilizes a large number of pipettors with various ranges and various ovum transferring needles which can be conveniently obtained to form a set of simple and convenient pipettor ovum transferring needle system.

2. Technical scheme

An egg moving needle adapter of a pipettor comprises a gun head interface, a fastening nut and a sealing rubber ring group; the gun head interface, the fastening screw cap and the sealing rubber ring group are all of a revolving body structure with through holes arranged along the axial direction, the fastening screw cap is sleeved on the front portion of the gun head interface and is in threaded connection with the gun head interface, and the sealing rubber ring group is arranged in the inner cavity of the fastening screw cap and is tightly pressed between the gun head interface and the fastening screw cap.

In the egg moving needle adapter of the pipettor, a tapered through hole with a large upper part and a small lower part is formed in the gun head interface along the axial direction; the top of the gun head interface extends outwards along the radial direction to form a reinforcing part, the bottom of the gun head interface extends inwards along the radial direction to form a closing part, and the outer peripheral wall of the middle part of the gun head interface is provided with an external thread.

The pipettor ovum-moving needle adapter is characterized in that the length of the reinforcing part is 3.5mm, and the length of the closing part is 2 mm; the bottom surface of the external thread is coincided with the top surface of the closing-in part, and the length of the external thread is 5 mm.

The pipettor moves ovum needle adapter, wherein, the distance between reinforcement bottom surface and the external screw thread top surface is 4 mm.

In the above adapter for moving the ovum needle of the pipette, the fastening nut is made of a metal material, the upper part of the fastening nut is of a cylindrical structure, and the lower part of the fastening nut is of a circular truncated cone structure which is provided with a circular through hole along the axial direction and is large at the top and small at the bottom; the internal peripheral wall in fastening nut top be provided with the internal thread of external screw thread looks adaptation.

In the above pipettor ovum moving needle adapter, the fastening nut has a length of 16mm, and the truncated cone structure has a length of 4 mm; the internal thread top surface with fastening nut top surface coincidence, and length are 5 mm.

The egg needle moving adapter of the liquid transfer device is characterized in that the inner wall and the outer wall of the reinforcing part are frosted.

The egg moving needle adapter of the pipette is characterized in that the sealing rubber ring group comprises a soft rubber ring and a hard rubber ring; the hard rubber ring is of a cylindrical structure, the top surface of the hard rubber ring is provided with an installation groove matched with the closing-up part along the radial direction, and the soft rubber ring is of an oblate cylindrical structure and is installed on the top surface and the bottom surface of the hard rubber ring.

The pipettor ovum-moving needle adapter is characterized in that the diameter of the inner cavity of the cylindrical structure is 3mm, and the outer diameter of the hard rubber ring is 3.2 mm; the inner diameter of the hard rubber ring is the same as the diameter of the circular through hole and is 1.2mm, and the inner diameter of the bottom surface of the closing part is 1.5 mm.

3. Advantageous effects

In conclusion, the beneficial effects of the invention are as follows: the utility model discloses a various ovum needles that move that the adapter can constitute one set of simple and convenient pipettor and move ovum needle system with compares original method, and convenient and fast accurate high efficiency more realizes that the follicle moves the processing of getting, various embryos such as oocyte, embryonated egg, blastocyst etc. and moves and get, and the activity of embryo in the operation has been guaranteed to separation granular cell, has improved embryo's processing and has moved the efficiency and the reliability of getting the operation.

Drawings

Fig. 1 is a schematic structural view of the pipette ovum-moving needle adapter of the present invention;

fig. 2 is a schematic structural view of a gun head interface of the egg moving needle adapter of the pipette of the present invention;

fig. 3 is a schematic structural view of the fastening nut of the egg moving needle adapter of the pipette of the present invention;

fig. 4 is the structure schematic diagram of the sealing rubber ring group of the ovum needle moving adapter of the liquid transfer device.

Detailed Description

The present invention will be further described with reference to the following specific examples, but the present invention is not limited to these examples.

Referring to fig. 1 to 4, an ovum moving needle adapter for a pipette includes a gun head interface 1, a fastening nut 2 and a sealing rubber ring group 3; the gun head interface 1, the fastening screw cap 2 and the sealing rubber ring group 3 are all of a revolving body structure with through holes arranged along the axial direction, the fastening screw cap 2 is sleeved on the front portion of the gun head interface 1 and is in threaded connection with the front portion of the gun head interface 1, and the sealing rubber ring group 3 is arranged in the inner cavity of the fastening screw cap 2 and is tightly pressed between the gun head interface 1 and the fastening screw cap 2.

The gun head interface 1 is provided with a conical through hole 101 with a large upper part and a small lower part along the axial direction; the top of the gun head interface 1 extends outwards along the radial direction to form a reinforcing part 102, the bottom of the gun head interface extends inwards along the radial direction to form a closing-in part 103, the outer peripheral wall of the middle part is provided with external threads 104, preferably, the length of the reinforcing part 102 is 3.5mm, and the length of the closing-in part 103 is 2 mm; the bottom surface of the external thread 104 coincides with the top surface of the closing-in part 103, and the length is 5 mm.

The distance between the bottom surface of the reinforcing part 102 and the top surface of the external thread 104 is 4mm, and the distance can increase the length of the tapered through hole 101, so that the contact area between the gun head interface 1 and the gun head of the pipette gun is increased, and the tightness of connection between the gun head interface 1 and the gun head of the pipette gun is improved.

The fastening screw cap 2 is made of metal materials, the upper part of the fastening screw cap is a cylindrical structure 201, and the lower part of the fastening screw cap is a round platform structure 202 which is provided with a round through hole 203 along the axial direction and is large at the upper part and small at the lower part, so that the ovum needle can be conveniently fixed; the inner peripheral wall of the top of the fastening nut 2 is provided with an inner thread 204 matched with the outer thread 104, the outer thread 104 is meshed with the inner thread 204 to firmly connect the gun head interface 1 and the fastening nut 2, preferably, the length of the fastening nut 2 is 16mm, and the length of the circular truncated cone structure 202 is 4 mm; the top surface of the internal thread 204 coincides with the top surface of the fastening nut 2, and the length is 5 mm.

The inner wall and the outer wall of the reinforcing part 102 are subjected to sanding treatment, the inner wall can be sealed with the pipette head to prevent air leakage, and the outer wall is subjected to sanding treatment to manually take down the pipette head under special conditions.

The sealing rubber ring group 3 comprises a soft rubber ring 301 and a hard rubber ring 302; hard rubber ring 302 is cylindric structure, and the top surface along radially inwards seted up with closing up portion 103 looks adaptation's mounting groove 303, soft rubber ring 301 is flat ring structure, and installs hard rubber ring 302 top surface and bottom surface, during the connection, sealed rubber ring group 3 sticiss between the two, simultaneously hard rubber ring 302 and soft rubber ring 301 compress tightly each other, prevent the loss of pressure during the use.

The diameter of the inner cavity of the cylindrical structure 201 is 3mm, and the outer diameter of the hard rubber ring 302 is 3.2 mm; the inner diameter of the hard rubber ring 302 is the same as the diameter of the circular through hole 203 and is 1.2mm, and the inner diameter of the bottom surface of the closing-up part 103 is 1.5 mm.

The using method comprises the following steps:

firstly, a firm nut is penetrated into a prepared egg moving needle from a tip port at the lower part, then the soft rubber ring 301 and the hard rubber ring 302 are sequentially penetrated on the penetrated egg moving needle port, then the penetrated egg moving needle port penetrates into the lower end of the gun head interface 1, the gun head interface 1 is screwed into the fastening nut 2 by using external threads 104 on the wall, the internal sealing rubber ring group 3 is compressed, finally, the gun head at the lower end of a common pipettor is directly inserted into an opening at the upper end of the gun head interface 1 to be compressed, the combination can be finished, the common pipettor and the egg moving needle are simply combined, and the daily operations of treating and moving embryos of various mammals, separating granular cells and the like are finished.

Although the present invention has been described with reference to the preferred embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. The utility model provides a pipettor moves ovum needle adapter which characterized in that: comprises a gun head interface (1), a fastening nut (2) and a sealing rubber ring group (3); the gun head interface (1), the fastening screw cap (2) and the sealing rubber ring group (3) are all of a revolving body structure with through holes arranged along the axial direction, the fastening screw cap (2) is sleeved on the front portion of the gun head interface (1) and is in threaded connection with the front portion of the gun head interface (1), and the sealing rubber ring group (3) is installed in the inner cavity of the fastening screw cap (2) and is tightly pressed between the gun head interface (1) and the fastening screw cap (2).

2. The pipette egg removal needle adapter according to claim 1, wherein: the gun head interface (1) is provided with a conical through hole (101) with a large upper part and a small lower part along the axial direction; the top of the gun head interface (1) extends outwards along the radial direction to form a reinforcing part (102), the bottom of the gun head interface extends inwards along the radial direction to form a closing part (103), and the outer peripheral wall of the middle part of the gun head interface is provided with an external thread (104).

3. The pipette egg removal needle adapter according to claim 2, wherein: the length of the reinforcing part (102) is 3.5mm, and the length of the closing part (103) is 2 mm; the bottom surface of the external thread (104) is coincided with the top surface of the closing-in part (103), and the length is 5 mm.

4. The pipette egg removal needle adapter according to claim 3, wherein: the distance between the bottom surface of the reinforcing part (102) and the top surface of the external thread (104) is 4 mm.

5. The pipette egg removal needle adapter according to claim 4, wherein: the fastening nut (2) is made of metal materials, the upper part of the fastening nut is of a cylindrical structure (201), and the lower part of the fastening nut is of a round platform structure (202) which is provided with a round through hole (203) along the axial direction and is large at the top and small at the bottom; the inner peripheral wall of the top of the fastening nut (2) is provided with an internal thread (204) matched with the external thread (104).

6. The pipette egg removal needle adapter according to claim 5, wherein: the length of the fastening nut (2) is 16mm, and the length of the circular truncated cone structure (202) is 4 mm; the top surface of the internal thread (204) is coincided with the top surface of the fastening nut (2), and the length of the internal thread is 5 mm.

7. The pipette egg removal needle adapter according to claim 6, wherein: the inner wall and the outer wall of the reinforcing part (102) are subjected to sanding treatment.

8. The pipette egg removal needle adapter according to claim 7, wherein: the sealing rubber ring group (3) comprises a soft rubber ring (301) and a hard rubber ring (302); the hard rubber ring (302) is of a cylindrical structure, an installation groove (303) matched with the closing-in part (103) is formed in the top surface of the hard rubber ring along the radial direction, the soft rubber ring (301) is of a flat circular ring structure and is installed on the top surface and the bottom surface of the hard rubber ring (302).

9. The pipette egg removal needle adapter according to claim 8, wherein: the diameter of the inner cavity of the cylindrical structure (201) is 3mm, and the outer diameter of the hard rubber ring (302) is 3.2 mm; the inner diameter of the hard rubber ring (302) is the same as the diameter of the circular through hole (203) and is 1.2mm, and the inner diameter of the bottom surface of the closing-up part (103) is 1.5 mm.