CN220063522U - Liquid sampling auxiliary device and liquid sampling equipment - Google Patents

Abstract

The utility model relates to a liquid sampling auxiliary device, which comprises a backflow prevention component and a pipette, wherein the backflow prevention component comprises a connecting piece and an encapsulation piece, the connecting piece is connected with the encapsulation piece and forms a cavity in the connecting piece, one end of the connecting piece, which is far away from the encapsulation piece, is provided with a first opening communicated with the cavity, and the first opening is used for being communicated with external suction equipment; the pipette is at least partially disposed through the package and extends into the cavity. Foretell liquid sampling auxiliary device is worn to locate the package through with the pipette at least part and is stretched into in the cavity for the pipette is when inhaling liquid too much, and liquid can flow into the cavity from the pipette, thereby can not pollute liquid-transfering gun or gluey head, is favorable to guaranteeing the disinfection in the operation process, reduces the risk that causes the pollution.

Description

Liquid sampling auxiliary device and liquid sampling equipment

Technical Field

The utility model relates to the technical field of medical equipment, in particular to a liquid sampling auxiliary device and liquid sampling equipment.

Background

With the development of medical technology, a test tube infant technology appears, most of the existing test tube infant technologies adopt an ovum superrow scheme, and the number of eggs obtained by a single person is more than 10, and a plurality of test tubes are required to be stored, so that repeated operations are required during fertilization.

However, the existing rubber head suction nozzle has higher difficulty in operation, is not easy to control the amount of sucked sperms, and the sperm concentrated solution is easy to suck into the rubber head, so that the risk of sample pollution or sperm sample intersection is easily caused while sperms are wasted; another way of sucking with a pipette is to touch the walls of the test tube easily during the insemination operation, which is also risky to pollute, due to the thicker stick.

Disclosure of Invention

Accordingly, it is necessary to provide a liquid sampling auxiliary device for solving the problem that the above-mentioned rubber head suction nozzle and the pipetting gun are easy to cause pollution.

The liquid sampling auxiliary device comprises a backflow prevention assembly and a pipette, wherein the backflow prevention assembly comprises a connecting piece and a packaging piece, the connecting piece is connected with the packaging piece, a cavity is formed in the connecting piece, one end, away from the packaging piece, of the connecting piece is provided with a first opening communicated with the cavity, and the first opening is used for being communicated with external suction equipment; the pipette is at least partially disposed through the package and extends into the cavity.

Foretell liquid sampling auxiliary device is worn to locate the package through with the pipette at least part and is stretched into in the cavity for the pipette is when inhaling liquid too much, and liquid can flow into the cavity from the pipette, thereby can not pollute liquid-transfering gun or gluey head, is favorable to guaranteeing the disinfection in the operation process, reduces the risk that causes the pollution.

In one embodiment, the connecting piece comprises a first connecting portion, one end of the first connecting portion is connected with the packaging piece, a cavity is formed in the first connecting portion, and the first opening is formed in one end, away from the packaging piece, of the first connecting portion.

In one embodiment, the first connecting portion includes a straight pipe section and a taper pipe section connected to the straight pipe section, the packaging member is detachably connected to one end of the straight pipe section, the first opening is formed in one end of the taper pipe section away from the straight pipe section, and the cross-sectional area of the interior of the taper pipe section gradually decreases from one end of the taper pipe section close to the straight pipe section to one end of the taper pipe section close to the first opening.

In one embodiment, the end of the cone segment having the first opening is adapted to receive a glue head, wherein the external suction device comprises a glue head.

In one embodiment, the connector further comprises a second connector portion located inside the cavity and in communication with the first opening.

In one embodiment, the second connecting portion is provided with a second opening near one end of the package, and the cross-sectional area of the interior of the second connecting portion gradually decreases along the direction from the first opening to the second opening.

In one embodiment, the second connection is for plugging a pipette gun, wherein the external suction device comprises a pipette gun.

In one embodiment, the package is removably connected to the connector.

In one embodiment, the connector is configured to enable viewing of transparent structures within the cavity.

A liquid sampling device adopts the liquid sampling auxiliary device.

Foretell liquid sampling equipment adopts foretell liquid sampling auxiliary device, through wearing to locate the packaging part with the pipette at least part and stretch into in the cavity for the pipette is when inhaling liquid too much, and liquid can flow into in the cavity from the pipette, thereby can not pollute the liquid-transfering gun or glue the head, is favorable to guaranteeing the disinfection in the operation process, reduces the risk that causes the pollution.

Drawings

FIG. 1 is a cross-sectional view of a liquid sampling assistance device according to an embodiment of the utility model.

Fig. 2 is a cross-sectional view of the liquid sampling assistance device of fig. 1 coupled to a rubber suction cap.

FIG. 3 is a cross-sectional view of the liquid sampling assistance device of FIG. 1 coupled to a pipette.

1. A backflow prevention assembly; 11. a connecting piece; 111. a first opening; 112. a first connection portion; 1121. a straight pipe section; 1122. a cone pipe section; 113. a second connecting portion; 1131. a second opening; 12. a package; 13. a cavity; 2. a pipette; 3. a rubber head; 4. a pipette gun.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that, if any, these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used herein with respect to the orientation or positional relationship shown in the drawings, these terms refer to the orientation or positional relationship for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, if any, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

The current artificial insemination process has a large artificial insemination requirement due to the adoption of an ovum superrow scheme, but the current insemination tube is easy to pollute a sample due to improper operation and inconvenient to use, so that a device for effectively avoiding polluted liquid sampling is necessary to be provided.

Referring to fig. 1, some embodiments of the present utility model provide a liquid sampling auxiliary device, which includes a backflow prevention assembly 1 and a pipette 2, wherein the backflow prevention assembly 1 includes a connector 11 and a package 12. The connector 11 is connected to the package 12, and a cavity 13 is formed in the connector 11. The end of the connecting piece 11 remote from the packaging piece 12 is provided with a first opening 111 communicated with the cavity 13, and the first opening 111 is used for communicating with external suction equipment; the pipette 2 is at least partially disposed through the package 12 and protrudes into the cavity 13.

According to the liquid sampling auxiliary device, the pipette 2 at least partially penetrates through the packaging piece 12 and stretches into the cavity 13, so that when the pipette 2 is excessively sucked, the liquid flows into the cavity 13 from the pipette 2, the pipette 4 or the rubber head 3 cannot be polluted, disinfection in the operation process is guaranteed, and the pollution risk is reduced.

Wherein the pipette 2 can be designed as a capillary glass tube, minimizing handling errors during pipetting.

It should be noted that, the fact that the pipette 2 is at least partially inserted into the package 12 and protrudes into the cavity 13 is understood as follows: the pipette 2 should be penetrated from the packaging piece 12 and the end part of the pipette 2 protrudes out of the packaging piece 12 and extends into the cavity 13, so that if the pipette 2 sucks excessive liquid, the liquid can flow into the cavity 13 from the pipette 2 to form buffer, and the liquid cannot flow back into the pipette 2, so that pollution is avoided; meanwhile, excessive liquid is not directly sucked into the suction equipment, so that pollution to the external suction equipment is avoided.

In addition, the liquid sampling auxiliary device of the present utility model should be vertically placed throughout the use process, i.e. the end of the pipette 2 away from the packaging member 12 is vertically downward, so as to avoid the contamination caused by the backflow of the liquid in the cavity 13 or the inflow of the liquid into the first opening 111 due to the factors such as tilting. Thus, in the present utility model, the upper side is the direction in which the liquid assist device approaches the external suction apparatus, and the lower side is the direction in which the liquid assist device pipette 2 is away from the package 12.

It will be readily appreciated that the cavity 13 formed in the connector 11 is adapted to receive an excess of liquid to be aspirated, in particular the portion of the pipette 2 extending into the space between one end of the cavity 13 and the enclosure 12. Therefore, when the pipette 2 stretches into the cavity 13, the more the liquid can be contained in the cavity 13, and the fault tolerance of the device is effectively improved.

It should be noted that the sealing connection between the packaging member 12 and the connecting member 11 should ensure that the packaging member 12 seals the cavity 13, so that the connection portion between the packaging member 12 and the connecting member 11 will not leak air during liquid taking to affect the liquid taking efficiency or cause errors.

Optionally, there are various ways of connecting the package 12 and the connector 11, which may be, but not limited to, interference fit, threaded connection, adhesive, etc.

In addition, the external suction device mentioned above refers to a device that is connected to the liquid sampling auxiliary device and can provide suction, and may be, but is not limited to, a rubber head 3, a pipette gun 4, and the like.

Further, as shown in fig. 1, the connector 11 includes a first connecting portion 112, and one end of the first connecting portion 112 is connected to the package 12 and forms a cavity 13 therein. The first opening 111 is disposed at an end of the first connection portion 112 away from the package 12. Like this, the one end of keeping away from package 12 is located to first opening 111 to make first opening 111 and wear to locate the pipette 2 straight line intercommunication of package 12, guaranteed that the liquid volume in the pipette 2 can in time feed back when getting the liquid, reduced misoperation's probability.

It should be noted that, the first opening 111 is disposed at an end of the first connecting portion 112 away from the package 12, that is, the package 12 and the first opening 111 are disposed relatively in the cavity 13, and the pipette 2 is disposed through the package 12 and extends into the cavity 13, so that the pipette 2 is directly communicated with the first opening 111, and the amount of liquid in the pipette 2 can be synchronously changed according to the suction force when the first opening 111 sucks, so as to generate real-time feedback, thereby reducing the probability of error.

Further, as shown in fig. 1, the first connection portion 112 includes a straight pipe segment 1121 and a tapered pipe segment 1122 connected to the straight pipe segment 1121. The packaging member 12 is detachably connected to one end of the straight tube section 1121, the first opening 111 is disposed at one end of the tapered tube section 1122 away from the straight tube section 1121, and the cross-sectional area of the interior of the tapered tube section 1122 gradually decreases from one end of the tapered tube section 1122 near the straight tube section 1121 to one end of the tapered tube section 1122 near the first opening 111. In this way, the connection of the straight tube segment 1121 to the enclosure 12 allows for as much liquid as possible to be contained by the cavity 13 between the end of the pipette 2 and the enclosure 12, and the provision of the tapered tube segment 1122 facilitates the installation of external suction devices.

It should be noted that, the cross-sectional area of the taper pipe section 1122 gradually decreases from the end near the straight pipe section 1121 to the end near the first opening 111, which can save costs to some extent; while the cross-sectional area of the cone segment 1122 is reduced to a shape suitable for connection to an external suction device to ensure a secure connection to the suction device.

In addition, during actual use, the pipette 2 draws a small amount of liquid, so that the suction force required to be provided is not large, and the suction device should be matched with the suction device, so that excessive liquid taking amount is avoided.

In one embodiment, referring to fig. 2, the end of the cone segment 1122 having the first opening 111 is used to socket the glue head 3, wherein the external suction device comprises the glue head 3. Thus, the conical surface of the conical tube section 1122 can play a role in guiding the sleeved rubber head 3, and the tightly sleeved rubber head 3 can be ensured; and the design of taper pipe section 1122 makes this device can use the rubber head 3 of different models, has increased the practicality of product. On the other hand, the rubber head 3 can provide the suction force required by sucking the liquid sample, so that the device has a simple structure and is convenient for the liquid taking process.

It should be noted that, the rubber head 3 is a rubber cap with elasticity, and the rubber head 3 can be pinched to exhaust air in the rubber head 3, and then the rubber head 3 is loosened to suck air in the rubber head 3, so as to achieve the effect of providing suction force required for taking liquid.

In addition, when the rubber head 3 is installed, the rubber head 3 is moved along the conical surface of the conical tube section 1122 until the rubber head 3 is deformed and sleeved on the conical tube section 1122 or the straight tube section 1121.

In one embodiment, referring to fig. 1, the connection 11 further includes a second connection portion 113, the second connection portion 113 being located inside the cavity 13 and communicating with the first opening 111. In this way, the second connection portion 113 is provided, so that the liquid is not easy to spill out of the first opening 111 when the liquid is stored in the cavity 13, and pollution is avoided.

The second connection portion 113 is formed to extend from the first opening 111 into the cavity 13, so that contamination caused by the liquid being sprayed out from the second opening 1131 can be avoided.

Further, referring to fig. 1, the second connecting portion 113 is provided with a second opening 1131 near one end of the package 12, and the cross-sectional area of the interior of the second connecting portion 113 gradually decreases in a direction from the first opening 111 to the second opening 1131. In this way, the reverse taper surface from the first opening 111 to the second opening 1131 is the second connecting portion 113, and by using the reverse taper surface, the probability of liquid sprinkling is further reduced, and the reliability is improved.

It should be noted that, the second connection portion 113 is disposed between the first opening 111 and the second opening 1131, and is used for connecting the first opening 111 and the second opening 1131, that is, an end portion of the second connection portion 113 away from the package 12 is the first opening 111, and an end portion of the second connection portion 113 close to the package 12 is the second opening 1131.

Further, referring to fig. 3, the second connection 113 is for plugging the pipette gun 4, wherein the external suction device comprises the pipette gun 4. Thus, the second connecting part 113 can be matched with the pipetting gun 4 to ensure the stability in the pipetting process.

The portion of the second connecting portion 113 with the gradually smaller cross-sectional area can be just attached to the tip of the pipette tip 4, so that the tightness of the connection between the pipette tip 4 and the second connecting portion 113 is ensured. The muzzle of the pipette 4 corresponds to the second opening 1131, and suction is provided to the device from the second opening 1131.

In one embodiment, as shown in fig. 1, 2 and 3, the package 12 is detachably connected to the connector 11. Therefore, after the liquid enters the cavity 13, the packaging piece 12 can be conveniently and quickly detached from the connecting piece 11 for cleaning and disinfection, and the recycling is facilitated.

In one embodiment, the connector 11 is configured to enable viewing of transparent structures within the cavity 13. Therefore, the liquid amount in the pipette 2 can be observed in real time, the condition of excessive liquid taking is reduced as much as possible, and the waste of liquid samples is reduced.

In addition, the utility model also provides liquid sampling equipment, and the liquid sampling auxiliary device is adopted.

The liquid sampling device adopts the liquid sampling auxiliary device, and at least part of the pipette 2 penetrates through the packaging piece 12 and stretches into the cavity 13, so that when excessive liquid is sucked into the pipette 2, the liquid can flow into the cavity 13 from the pipette 2, the pipette 4 or the rubber head 3 cannot be polluted, disinfection in the operation process is guaranteed, and the pollution risk is reduced.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. A liquid sampling assistance device, characterized in that the liquid sampling assistance device comprises:

the backflow prevention assembly comprises a connecting piece and an encapsulation piece, wherein the connecting piece is connected with the encapsulation piece, a cavity is formed in the connecting piece, one end, away from the encapsulation piece, of the connecting piece is provided with a first opening communicated with the cavity, and the first opening is used for being communicated with external suction equipment;

and the pipette at least partially penetrates through the packaging piece and stretches into the cavity.

2. The liquid sampling assistance device of claim 1, wherein the connector comprises a first connector portion, wherein one end of the first connector portion is connected to the package and forms the cavity therein, and the first opening is disposed at an end of the first connector portion remote from the package.

3. The liquid sampling auxiliary device according to claim 2, wherein the first connecting portion comprises a straight pipe section and a taper pipe section connected to the straight pipe section, the packaging member is detachably connected to one end of the straight pipe section, the first opening is formed in one end of the taper pipe section away from the straight pipe section, and the cross-sectional area of the interior of the taper pipe section is gradually reduced from one end of the taper pipe section close to the straight pipe section to one end of the taper pipe section close to the first opening.

4. A liquid sampling assistance apparatus according to claim 3 wherein the cone section has an end with the first opening for receiving a glue head, wherein the external suction device comprises the glue head.

5. The liquid sampling assistance device of claim 1, wherein the connector further comprises a second connector located within the cavity and in communication with the first opening.

6. The liquid sampling assistance device of claim 5, wherein the second connection portion has a second opening at an end thereof adjacent to the package, and wherein the cross-sectional area of the interior of the second connection portion gradually decreases in a direction from the first opening to the second opening.

7. The liquid sampling assistance device of claim 6, wherein the second connection is for plugging a pipette gun, wherein the external suction apparatus comprises the pipette gun.

8. The liquid sampling assistance device of any one of claims 1-7, wherein the enclosure is removably connected to the connector.

9. The liquid sampling assistance device of any one of claims 1-7, wherein the connector is configured to enable viewing of transparent structures within the cavity.

10. A liquid sampling device, characterized in that a liquid sampling aid according to any one of claims 1-9 is used.