CN211706829U

CN211706829U - Liquid-transfering gun rifle head and liquid-transfering gun for medical science detection

Info

Publication number: CN211706829U
Application number: CN201922080315.2U
Authority: CN
Inventors: 张强
Original assignee: Wuhan Kangmat Biotechnology Co ltd
Current assignee: Wuhan Kangmat Biotechnology Co ltd
Priority date: 2019-11-27
Filing date: 2019-11-27
Publication date: 2020-10-20
Anticipated expiration: 2029-11-27

Abstract

The utility model discloses a medical science detects with liquid-transfering gun rifle head and liquid-transfering gun, including the cover body (1), annular buckle (2), its characterized in that: annular buckle (2) set up in the contact jaw of the cover body (1) and pipetting gun cup joints when pipetting gun when the cover body (1), annular buckle (2) and pipetting gun surface laminating, the inside of the cover body (1) is equipped with a buffer memory district (3), buffer memory district (3) inside is equipped with water proof baffle (4), water proof baffle (4) and buffer memory district (3) form a buffer memory groove (5) for the raffinate of storage refluence. Can prevent effectively that the raffinate from flowing backwards to the pipetting gun inside, and be provided with adsorbing material in the buffer memory groove, can absorb the raffinate, avoid making the raffinate flow to the pipetting gun inside because of maloperation once more.

Description

Liquid-transfering gun rifle head and liquid-transfering gun for medical science detection

Technical Field

The utility model relates to a move liquid technical field, concretely relates to medical science detects with liquid-transfering gun rifle head and liquid-transfering gun.

Background

The pipette is one kind of pipettor, is commonly used in the laboratory to the removal of a small amount of or trace liquid, and the specification is different, and the pipette of different specifications matches and uses the rifle head of different sizes, and the shape of different manufacturers' production is also slightly different, but theory of operation and operating method are unanimous basically. The liquid-transfering gun belongs to the precision device, when having liquid in the liquid-transfering gun rifle head, if place the pipettor level or invert, inside its liquid refluence income liquid-transfering gun, its liquid probably corrodes the inside piston spring of liquid-transfering gun, can directly influence its precision of getting liquid like this, can lead to the more or less error that produces of experimental result.

In the prior art, a filtering partition plate is arranged in a gun head, and once liquid flows back to the filtering partition plate, the partition plate can play a certain blocking role, or some absorbing materials are added in the filtering partition plate to absorb the flowing back liquid.

Although above-mentioned technical scheme has solved the problem of liquid refluence, but filter the baffle and place inside the barrel of whole rifle head, in order to guarantee its isolation nature, need seal the laminating with the barrel inner wall. Although the filtering partition board has certain air permeability, the filtering partition board also has great influence on the smoothness of air flow, and slow and unsmooth liquid suction and discharge can be caused. There is a large sacrifice in ease of operation.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a medical science detects with liquid-transfering gun rifle head and liquid-transfering gun. This product can effectively completely cut off liquid and flow back to liquid-transfering gun inside, does not influence the smooth and easy nature of gas flow among the operation process simultaneously.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

first aspect, a medical science detects with liquid-transfering gun rifle head, including the cover body 1, annular buckle 2 set up in the contact jaw of the cover body 1 with the liquid-transfering gun, when the cover body 1 cup joints in the liquid-transfering gun, annular buckle 2 and the laminating of liquid-transfering gun surface, the inside of the cover body 1 still is equipped with a buffer memory 3, buffer memory 3 is inside to be equipped with water proof baffle 4, water proof baffle 4 forms a buffer memory 5 with buffer memory 3 for the raffinate of storage refluence.

With reference to the first aspect, the first case in any case where this may occur is: the sleeve body 1, the annular buckle 2, the cache area 3 and the water-stop baffle 4 are integrally formed.

With reference to the first aspect and the first case described above, a second case in any case that may occur is: the cross section of the buffer groove 5 is V-shaped or concave.

In conjunction with the second case described above, a third case in any of the cases in which this may occur is: the inner wall of the buffer groove 5 is pasted with a water absorption layer 6; the woven fabric surface layer is made into a sealed bag body, and the bag body is filled with high water absorption resin materials to form the water absorption layer (6).

In combination with the third case described above, the fourth case in any of the cases in which this may occur is: one or any two or three indicators of methyl red, bromocresol green and thymol blue are adsorbed on the non-woven fabric surface layer of the water absorption layer 6.

In a second aspect, a pipette for medical examination, the pipette comprising, from top to bottom, a pipette tip adapter, and the pipette tip for medical examination described in the first aspect and in any one of the first and fourth aspects; and a buckle device matched with the annular buckle 2 is arranged on the outer surface of the gun head nozzle.

The utility model has the advantages that:

the utility model discloses can prevent effectively that the raffinate from flowing backwards to the liquid-transfering gun inside, can preserve raffinate water conservancy diversion to the buffer memory inslot. And the buffer tank is internally provided with an adsorption material which can absorb the residual liquid, thereby avoiding the residual liquid flowing to the inside of the liquid-transferring gun due to secondary misoperation.

In addition, because the filtering baffle is different from a closed filtering baffle, the buffer area in the technical scheme is provided with an opening, so that the circulation of gas in the pipe during operation is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a schematic structural diagram of a "V" type cache slot according to embodiment 1 of the present invention;

fig. 2 is a schematic structural view of a "concave" type cache slot according to embodiment 1 of the present invention;

FIG. 3 is a schematic structural view of the water-absorbing layer of example 2 of the present invention;

fig. 4 is a schematic structural diagram of embodiment 3 of the present invention.

Detailed Description

The technical solution of the present invention is further specifically described below by way of examples and with reference to the accompanying drawings. It is obvious that the described embodiments are only some of the embodiments of the present invention.

The technical solution of the present invention will be described below with reference to the accompanying drawings and examples.

Example 1, see figure 1:

the utility model provides a liquid-transfering gun rifle head for medical science detects, includes cover body 1, annular buckle 2 set up in the contact jaw of cover body 1 and liquid-transfering gun, when the cover body 1 cup joints in the liquid-transfering gun, annular buckle 2 and the laminating of liquid-transfering gun surface. The technical scheme of the contact sealing of pipette and rifle head is mostly sealed by annular buckle connection technology in the prior art, and the technical scheme is mature, and technical personnel in the technical field can fully obtain and understand.

As shown in fig. 1, a buffer area 3 is arranged inside the upper end of the sleeve body 1, a water-stop baffle 4 is arranged inside the buffer area 3, and the water-stop baffle 4 and the buffer area 3 form a buffer tank 5 for storing the residual liquid flowing backwards. The shape of the buffer area 3 can be various shapes such as a column shape, a sphere shape and the like. The direction of the baffle 4 points downwards to the thin opening of the sleeve body 1. As shown in fig. 1 and 2, the cross section of the buffer tank 5 is "V" or "concave" or other shapes, as long as a tank body is formed to store the residual liquid.

Example 2, see figure 3:

example 2 differs from example 1 in that: the inner wall of the buffer tank 5 is pasted with a water absorption layer 6, the water absorption layer 6 is a sealed bag body made of a non-woven fabric surface layer, and the bag body is filled with a high water absorption resin material. When residual liquid flows into the buffer tank 5, the residual liquid is contacted with the water absorption layer 6, and the residual liquid permeates into the water absorption layer 6 through the non-woven fabric of the residual liquid, reacts with the super absorbent resin material filled inside, and is absorbed by the super absorbent resin material, so that the phenomenon that the residual liquid overflows and flows into the liquid transferring gun due to excessive residual liquid is avoided.

And one or any two or three indicators of methyl red, bromocresol green and thymol blue can be adsorbed on the non-woven fabric surface layer of the water absorption layer 6. Above-mentioned indicator meets liquid and all can carry out the demonstration of discolouing, and in case the user finds that layer 6 that absorbs water takes place the colour change, can judge that this rifle head is polluted or used, can avoid using again.

According to hundred-degree encyclopedia inquiry, the three substances of methyl red, bromocresol green and thymol blue are all used as acid-base indicators and are commonly used in a Ph test product, such as Ph test paper. And the common forms of the three substances are powder or crystal.

Example 3, see figure 4:

the invention also provides a liquid-transfering gun matched with the head of the liquid-transfering gun for medical detection. The liquid-transfering gun comprises a liquid-transfering rod, a gun head joint and a liquid-transfering gun head for medical detection in sequence from top to bottom. The outer surface of the gun head nozzle is provided with a buckle device matched with the annular buckle 2, and a sealing ring can be formed at the annular buckle after the clamping. The structure of the pipette is not a single-head or multi-head pipette commonly used in the field, the technical scheme is mature, and the pipette can be fully obtained and understood by a person skilled in the art.

It should be understood that the above-mentioned embodiments are only used for illustrating the present invention and are not used for limiting the scope of the present invention. It should also be understood that various changes and modifications can be made by those skilled in the art after reading the disclosure of the present invention, and equivalents fall within the scope of the appended claims.

Claims

1. The utility model provides a medical science detects with liquid-transfering gun rifle head, includes cover body (1), annular buckle (2), its characterized in that: annular buckle (2) set up in the contact jaw of the cover body (1) and pipetting gun cup joints when pipetting gun when the cover body (1), annular buckle (2) and pipetting gun surface laminating, the inside of the cover body (1) is equipped with a buffer memory district (3), buffer memory district (3) inside is equipped with water proof baffle (4), water proof baffle (4) and buffer memory district (3) form a buffer memory groove (5) for the raffinate of storage refluence.

2. The pipette tip for medical examination according to claim 1, wherein: the sleeve body (1), the annular buckle (2), the cache area (3) and the water-resisting baffle (4) are integrally formed.

3. The pipette tip for medical examination according to claim 1 or 2, wherein: the cross section of the buffer groove (5) is V-shaped or concave.

4. The pipette tip for medical examination according to claim 3, wherein: a water absorption layer (6) is adhered to the inner wall of the buffer groove (5); the non-woven fabric surface layer is made into a sealed bag body, and the bag body is filled with high water absorption resin materials to form the water absorption layer (6).

5. The pipette tip for medical examination according to claim 4, wherein: the non-woven fabric surface layer of the water absorption layer (6) adsorbs one indicator of methyl red, bromocresol green and thymol blue.

6. A liquid-transfering gun for medical detection, which is characterized in that the liquid-transfering gun comprises a liquid-transfering rod, a gun head joint nozzle and the gun head of the liquid-transfering gun for medical detection according to any one of claims 1-5 in sequence from top to bottom; and a buckle device matched with the annular buckle (2) is arranged on the outer surface of the gun head nozzle.