CN211546525U

CN211546525U - Suction head structure and embryo operating device

Info

Publication number: CN211546525U
Application number: CN201921995790.6U
Authority: CN
Inventors: 刘帅
Original assignee: Guangzhou Women and Childrens Medical Center
Current assignee: Guangzhou Women and Childrens Medical Center
Priority date: 2019-11-18
Filing date: 2019-11-18
Publication date: 2020-09-22
Anticipated expiration: 2029-11-18

Abstract

A suction head structure and an embryo operating device relate to the technical field of medical instruments, and the suction head structure comprises a first elastic suction part, a second elastic suction part and a connecting part, wherein the connecting part is provided with a vent hole, the connecting part is used for being connected with a suction pipe, and the vent hole can be communicated with the suction pipe; the inner diameter of the first elastic suction part in the set axial range is larger than that of the second elastic suction part, the first elastic suction part is communicated with the second elastic suction part, and the second elastic suction part is communicated with the vent hole. It can select to use first elasticity portion of absorbing or second elasticity portion of absorbing according to the volume of the material that needs to absorb to carry out better control to the volume of absorbing the material.

Description

Suction head structure and embryo operating device

Technical Field

The utility model relates to the field of medical equipment, particularly, relate to a suction head structure and embryo operating means.

Background

Embryo transfer and fluid preparation are routine steps in embryo manipulation. In performing embryo transfer or preparation, embryo handling devices are commonly used. The embryo handling device comprises a Pasteur pipette and a sucker, wherein the thin end of the Pasteur pipette is firstly drawn, the thick end is used after the sucker is arranged, and the thin end is discarded. When the suction head is used, negative pressure is formed by pressing the suction head, and suction operation is performed.

In actual embryo handling, it is sometimes desirable to transfer larger volumes of fluid (e.g., during preparation of the fluid) and sometimes desirable to minimize the amount of culture fluid carried with the embryo in the previous step (e.g., during embryo transfer).

However, it is difficult to control the amount of liquid sucked in one operation, that is, to change the amount of liquid sucked in accordance with the operation demand.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a suction head structure and embryo operating means, it can be according to what of the volume of required absorption material selects to use first elasticity portion of absorbing or the portion of absorbing of second elasticity to carry out better control to the volume of absorbing the material.

The embodiment of the utility model is realized like this:

a sucker structure, which comprises a first elastic suction part, a second elastic suction part and a connecting part,

the connecting part is provided with a vent hole, the connecting part is used for being connected with a straw, and the vent hole can be communicated with the straw;

the inner diameter of the first elastic suction part in the set axial range is larger than that of the second elastic suction part, the first elastic suction part is communicated with the second elastic suction part, and the second elastic suction part is communicated with the vent hole.

In an alternative embodiment, the connection portion comprises a first mounting location for connecting with a butt end of the straw and a second mounting location for connecting with a butt end of the straw.

In an alternative embodiment, the vent is the second mounting location.

In an optional implementation scheme, the first mounting position is an annular clamping groove, and the annular clamping groove is arranged on an end surface of the connecting portion, which is away from the second elastic suction portion.

In an alternative embodiment, a flange is disposed at an end of the connecting portion away from the second elastic suction portion, and the flange extends outward in a radial direction of the connecting portion.

In an alternative embodiment, the first elastic suction portion has a drop-shaped configuration and the second elastic suction portion has a cylindrical configuration.

In an optional embodiment, the tip structure further comprises a carrier, the carrier is provided with a bracket, and the first elastic suction portion and the second elastic suction portion respectively partially extend into the bracket.

In an alternative embodiment, the carrier is made of polyethylene plastic or stainless steel.

In an optional embodiment, the first elastic suction part and the second elastic suction part are made of silicone.

The embryo operating device comprises a suction pipe and the suction head structure according to any one of the technical schemes, wherein the suction pipe is connected to the connecting part of the suction head structure.

The embodiment of the utility model provides a beneficial effect is:

in the embryo handling process, a pipette tip structure is used to connect the pipette tip, and specifically, the pipette tip structure is used to connect the connecting part with the pipette tip. After the connecting part is connected with the straw, the vent hole of the connecting part is communicated with the straw, so that the first elastic suction part, the second elastic suction part, the connecting part and the straw are communicated. In the process of absorbing the material, the first elasticity of extrusion is absorb portion or the portion is absorbed to the second elasticity, then is close to the one end of straw and treats the absorption thing, loosens the first elasticity of original extrusion and absorbs portion or the portion is absorbed to the second elasticity for produce the negative pressure in the straw, will treat the absorption thing suction straw through the negative pressure.

Because the internal diameter of first elasticity portion of sucking is greater than the internal diameter of second elasticity portion of sucking, consequently the gas of exhaling when extrudeing first elasticity portion of sucking is greater than the gas of exhaling when extrudeing second elasticity portion of sucking to make the negative pressure that produces in the straw when using first elasticity portion of sucking bigger, be suitable for and absorb more material, the negative pressure that produces in the straw when using second elasticity portion of sucking is less, is suitable for and absorbs less material.

From the above, when the above tip structure is used to perform embryo manipulation, the first elastic suction unit or the second elastic suction unit can be selected according to the amount of the material to be sucked, so that the amount of the material to be sucked can be controlled better.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present invention, and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained according to the drawings without inventive efforts.

FIG. 1 is a schematic structural view of a suction head structure provided in an embodiment of the present invention;

FIG. 2 is an axial view of a connecting portion of a suction head structure according to an embodiment of the present invention;

FIG. 3 is a cross-sectional view of a connecting portion of a suction head structure according to an embodiment of the present invention;

FIG. 4 is a schematic view of a suction head structure connected to a butt end of a suction tube according to an embodiment of the present invention;

FIG. 5 is a schematic view of the embodiment of the present invention showing the connection between the suction head structure and the tip of the suction tube.

In the figure:

10-a first elastic suction part; 20-a second elastic suction part; 30-a connecting portion;

31-a first mounting location; 32-a vent hole; 33-flanging;

40-carrying piece; 50-suction pipe.

Detailed Description

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, but not all, embodiments of the present invention. The components of the embodiments of the present invention, as generally described and illustrated in the figures herein, may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the present invention, presented in the accompanying drawings, is not intended to limit the scope of the invention, as claimed, but is merely representative of selected embodiments of the invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc. indicate the position or positional relationship based on the position or positional relationship shown in the drawings, or the position or positional relationship that the products of the present invention are usually placed when in use, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the structure or element of the suction head referred to must have a specific position, be constructed and operated in a specific orientation, and thus should not be construed as limiting the present invention. Furthermore, the terms "first," "second," "third," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

Furthermore, the terms "horizontal", "vertical", "overhang" and the like do not imply that the components are required to be absolutely horizontal or overhang, but may be slightly inclined. For example, "horizontal" merely means that the direction is more horizontal than "vertical" and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.

In the description of the present invention, it should also be noted that, unless otherwise explicitly specified or limited, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Some embodiments of the present invention will be described in detail below with reference to the accompanying drawings. The embodiments described below and the features of the embodiments can be combined with each other without conflict.

First embodiment

Referring to fig. 1 to 5, the present embodiment provides a suction head structure, which includes a first elastic suction portion 10, a second elastic suction portion 20 and a connecting portion 30, wherein:

the connecting part 30 is provided with a vent hole 32, the connecting part 30 is used for connecting with a straw 50, and the vent hole 32 can be communicated with the straw 50;

the inner diameter of the first elastic suction portion 10 at least in a set axial range is larger than that of the second elastic suction portion 20, that is, in the inner cavity of the first elastic suction portion 10, there are at least partial areas each having an inner diameter larger than that of the second elastic suction portion 20, so that the amount of air discharged from the first elastic suction portion 10 when the first elastic suction portion 10 is pressed is larger than that of air discharged from the second elastic suction portion 20 when the second elastic suction portion 20 is pressed. In fig. 1, in the lumen of the first elastic suction portion 10, the inner diameter only at the connection with the second elastic suction portion 20 is equal to the inner diameter of the second elastic suction portion 20, and the inner diameters of the remaining positions of the first elastic suction portion 10 are all larger than the inner diameter of the second elastic suction portion 20.

The first elastic suction portion 10 communicates with the second elastic suction portion 20, and the second elastic suction portion 20 communicates with the vent hole 32.

That is, the inner cavity of the first elastic suction portion 10, the inner cavity of the second elastic suction portion 20, and the vent hole 32 communicate with each other. When the connection part 30 is connected to the pipette 50, the vent hole 32 communicates with the inner cavity of the pipette 50, so that the first and second

elastic suction parts

10 and 20 also communicate with the inner cavity of the pipette 50. When the suction device is used for sucking, the first elastic suction part 10 (or the second elastic suction part 20) is pressed, so that the gas in the suction head structure is discharged along the suction pipe 50, and when the suction device sucks, the first elastic suction part 10 (or the second elastic suction part 20) is released, so that negative pressure occurs in the suction pipe 50, and a substance (liquid or embryo) is sucked through the negative pressure, so that the suction operation is completed.

Because the internal diameter of first elasticity portion of sucking 10 is great, consequently when extrudeing first elasticity portion of sucking 10, can discharge more air to make follow-up when loosening first elasticity portion of sucking 10, the negative pressure that produces in the straw 50 is bigger, and suction is stronger, can inhale more materials.

Since the inner diameter of the second elastic suction portion 20 is small, less air is discharged when the second elastic suction portion 20 is pressed, so that the negative pressure generated in the suction pipe 50 is relatively small when the second elastic suction portion 20 is released, the suction force is weak, and a small amount of material can be sucked.

Therefore, the pressing of the first elastic suction portion 10 or the second elastic suction portion 20 can be determined according to the amount of the substance to be sucked.

Specifically, the length of the inner cavity of the first elastic suction portion 10 is the same as or similar to the length of the inner cavity of the second elastic suction portion 20, and the length of the inner cavity of the first elastic suction portion 10 and the length of the inner cavity of the second elastic suction portion are both greater than the width of an adult finger (thumb), which is about 1 cm-3 cm. For example, the length of the lumen of the first elastic suction portion 10 and the length of the lumen of the second elastic suction portion 20 are both 4 cm.

As shown in fig. 1, the first elastic suction portion 10 is of a drop-shaped structure, specifically, one end of the first elastic suction portion 10 away from the second elastic suction portion 20 is a sealed end, the end surface is a spherical surface protruding outwards, and the inner diameter of the first elastic suction portion 10 gradually decreases from one side of the sealed end to the other side.

The second elastic suction portion 20 has a cylindrical structure, and has an inner diameter equal from one end to the other end.

Of course, in other embodiments, the first elastic suction portion 10 and the second elastic suction portion 20 may have other structural forms, for example, the first elastic suction portion 10 and the second elastic suction portion 20 may have a spherical structure.

The connection portion 30 is provided with a mounting position for connecting the suction pipe 50. Specifically, in one possible embodiment, only one mounting location may be provided on the coupling portion 30 for coupling with a single size of straw 50. Alternatively, it is preferable that a plurality of mounting positions for connecting with suction pipes 50 of different sizes are provided on the connection part 30.

In the embryo handling process, a pasteur pipette is generally used, one end of which is a thick end and the other end of which is a thin end, before use, the thin end of the pasteur pipette is first drawn, part of the thin end is separated out to make the opening of the thin end connected with the thick end thinner, and then the separated thin end is discarded, which causes waste of the thin end to some extent.

In order to adapt to the existing pasteur pipette, the connection part 30 is provided with at least two mounting positions, which are respectively called a first mounting position 31 and a second mounting position, wherein the first mounting position 31 is used for connecting with the thick end of the pipette 50, and the second mounting position is used for connecting with the thin end of the pipette 50.

Since the second mounting position is provided, the thin end drawn out from the pasteur pipette can be directly connected through the connection portion 30, and the sucking operation is performed using the thin end. The separated thin end has lighter weight and shorter length, thereby being convenient for operation and not causing unnecessary waste.

And an operator who has been accustomed to using a butt for operation, or needs to suck a large amount of liquid, the butt of the pasteur pipette may be mounted to the connection section 30 through the first mounting location 31.

So set up for connecting portion 30 can select to be connected with the butt of pasteur straw, can select to be connected with the thin end of pasteur straw again, can carry out the autonomic selection by operating personnel in the actual operation process, is favorable to going on smoothly of operation. In addition, the connection part 30 can be connected with the thin end of the Pasteur straw, so that the thin end does not need to be discarded, and the waste of medical supplies is reduced.

In a preferred embodiment, the vent 32 is the second mounting location. That is, the thin end of the suction pipe 50 is connected through the vent hole 32. Specifically, the tip of the pipette 50 is inserted into the vent hole 32, so that the pipette 50 is connected to the tip structure, and the inner cavity of the pipette 50 is connected to the first and second

elastic suction parts

10 and 20 via the vent hole 32. Alternatively, the diameter of the vent hole 32 may be slightly smaller than the outer diameter of the tip of the pipette 50, when the tip of the pipette 50 is inserted into the vent hole 32, the connecting portion 30 is slightly deformed at the vent hole 32, that is, the vent hole 32 is expanded by the inserted pipette 50, and after the pipette 50 is inserted, the connecting portion 30 tightly covers the pipette 50 under the elastic action of its own material, thereby fixing the pipette 50. When it is necessary to separate the pipette 50 from the connection part 30, the pipette 50 is simply pulled out.

In a preferred embodiment, the first mounting location 31 is a ring-shaped slot, and the ring-shaped slot is disposed on an end surface of the connecting portion 30 facing away from the second elastic suction portion 20. Specifically, the depth of the ring groove is smaller than the length of the connecting portion 30 in the axial direction. The difference between the outer radius and the inner radius of the annular clamping groove is slightly smaller than the thickness of the pipe wall of the thick end of the straw 50, so that when the thick end of the straw 50 extends into the annular clamping groove, the annular clamping groove is slightly deformed, the straw 50 is tightly wrapped and fixed under the elastic action of the material of the connecting part 30 after the straw 50 is inserted into the annular clamping groove. When it is necessary to separate the pipette 50 from the connection part 30, the pipette 50 is simply pulled out.

Further, the first mounting location 31 is disposed coaxially with the vent hole 32.

In addition to the above arrangement, in a possible embodiment, the second mounting location may also be provided in the form of an annular groove having an outer radius slightly different from an inner radius by a thickness of the wall of the narrow end of the suction tube 50.

Further, in a possible embodiment, not only two mounting positions but also more mounting positions can be provided on the connecting portion 30, wherein the vent hole 32 can serve as one of the mounting positions, and the other mounting positions are all annular grooves, and the mounting positions are coaxially arranged, so as to be adapted to mount suction pipes 50 with different sizes.

To facilitate the installation of the butt end of the suction pipe 50, as shown in fig. 2 and 3, in a preferred embodiment, the end of the connecting portion 30 remote from the second elastic suction portion 20 is provided with a flange 33, the flange 33 extending radially outwardly of the connecting portion 30. With such an arrangement, when the butt end of the suction pipe 50 is installed, the flange 33 can be pinched by hand to fix the position of the connection portion 30, so that the butt end of the suction pipe 50 can be more smoothly inserted into the first installation position 31.

In the present embodiment, the first elastic suction portion 10 and the second elastic suction portion 20 are both made of elastic materials, and preferably, the first elastic suction portion 10 and the second elastic suction portion 20 are both made of silicone.

In a preferred embodiment, as shown in fig. 1, 4 and 5, the tip structure further comprises a carrier 40, the carrier 40 is provided with a bracket, and the first elastic suction portion 10 and the second elastic suction portion 20 each have a portion extending into the bracket.

So set up, when extrudeing first elasticity suction means 10 (or second elasticity suction means 20), press first elasticity suction means 10 (or second elasticity suction means 20) by the one side that deviates from the bracket, the opposite side of first elasticity suction means 10 (or second elasticity suction means 20) supports the bottom in the bracket. So set up, be convenient for press the suction head, the comfort level is higher, and can prevent that the suction head structure from wrench movement when receiving the extrusion.

The carrier 40 is made of a hard material, and preferably, the carrier 40 is made of polyethylene plastic or stainless steel. When the supporting and carrying member 40 is made of stainless steel, the supporting and carrying member 40 has high strength and long service life, and can be used for multiple times. When the carrier member 40 is made of polyethylene plastic, the carrier member 40 is lighter in weight and is easy to carry and transfer.

Second embodiment

As shown in FIGS. 4 and 5, the present embodiment provides an embryo handling device comprising a pipette 50 and the pipette head structure provided in the first embodiment described above.

The pipette 50 is attached to the connecting portion 30 of the tip structure.

Specifically, the pipette 50 may be an equal diameter pipette or a non-equal diameter pipette, such as a Pasteur pipette.

When the pipette 50 is an equal diameter pipette, there is only one mounting location on the connector 30. When the suction pipe 50 is a pasteur suction pipe, the connection part 30 is provided with two mounting positions for mounting the thick end and the thin end of the pasteur suction pipe, respectively.

The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A suction head structure is characterized by comprising a first elastic suction part, a second elastic suction part and a connecting part,

2. The tip structure of claim 1 wherein said connecting portion includes a first mounting location for connecting to a butt end of said pipette and a second mounting location for connecting to a butt end of said pipette.

3. The tip structure of claim 2 wherein said vent is said second mounting location.

4. The suction head structure according to claim 2, wherein the first mounting position is an annular groove provided on an end surface of the connecting portion facing away from the second elastic suction portion.

5. The suction head structure according to claim 1, wherein an end of the connecting portion remote from the second resilient suction portion is provided with a flange extending radially outwardly of the connecting portion.

6. The tip structure of claim 1 wherein said first resilient suction portion is of a drop-like configuration and said second resilient suction portion is of a cylindrical configuration.

7. The tip structure of claim 1 further comprising a carrier member having a bracket, wherein the first and second resilient suction portions each extend partially into the bracket.

8. The tip structure of claim 7 wherein said carrier is made of polyethylene plastic or stainless steel.

9. The tip structure of claim 1 wherein said first and second resilient suction portions are made of silicone.

10. An embryo handling device comprising a pipette and a tip structure according to any of claims 1 to 9, the pipette being connected to a connection portion of the tip structure.