CN207478607U - A kind of disposable pipette - Google Patents

Abstract

The utility model discloses a kind of disposable pipettes, including tube body and imbibition tip, imbibition tip is connected to the lower end of tube body, tube body and imbibition tip are made of polystyrene or polypropylene, and tube body is integrally formed with imbibition tip, the toughness of tip can be effectively increased, appropriateness is bent tip, facilitates the liquid for drawing a small amount of or deep narrow container；The lower end of tube body has connecting tube, the bottom end connection imbibition tip of connecting tube；The length of imbibition tip is 80.00mm, and the length of tube body is 160.00mm, and the length of tube body is 2 times of imbibition tip length.The tube body and imbibition tip of the pipette of the utility model are integrally formed, it can effectively reduce that pipette is repeated multiple times to utilize caused sample room pollution, pipette is disposable instrument, avoid the cleaning of pipette and rinse process, the experimental implementation time is saved, and material has higher hardness, imbibition tip can effectively be avoided to destroy fluid seepage caused by missing, the length of tube body is 2 times of imbibition tip length, facilitates imbibition tip pipette samples from small container and jug.

Description

A kind of disposable pipette

Technical field

The utility model is related to a kind of pipette more particularly to a kind of disposable pipettes.

Background technology

Pipette is one of the most commonly used instrument in the fields laboratories such as current chemistry, chemical industry, medicine, environmental protection. Field of pharmaceutical biology is mainly used for the operations such as absorption, transfer of a small amount of liquid in cell experiment, clinical test etc..At present, pipette The main collocation rubber head of pipe or ear washing bulb use, and are the straight trip pipe of a up/down perforation, and when use is squeezed empty in discharge pipe using rubber head Gas is inserted into the liquid to be drawn, and using the effect of pipe inside and outside differential pressure, liquid is entered by pipette lower end in pipe, until When the intraluminal fluid scale of construction is enough, transfer is discharged into container used.

But there are following defects for existing pipette：

(1) pipette of the prior art belongs to glassware more, and it is repeated multiple times use, every time draw it is different Fluid sample uses the preceding consuming that must all clean rinse, cause unnecessary time and manpower；

(2) instrument of the pipette of the prior art as multiple Reusability when drawing transfer sample, can often to inhale The sample contamination taken is not thorough in pipe top, not cleaning in time or cleaning, can often cause the pollution of sample, so as to cause experiment Inaccurately, and then fail；

(3) pipette of the prior art is glassware, in use, the destruction of tip is easily caused to lack, So that drawing in transfer sample, the inaccuracy or sample of sample size are leaked from pipette to be polluted.

Utility model content

For overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of disposable pipette, the suctions The tube body and imbibition tip of buret are integrally formed, and can be effectively increased the toughness of tip, and appropriateness is bent tip, facilitate absorption a small amount of or The liquid of deep narrow container, can effectively reduce that pipette is repeated multiple times to be polluted, and this pipette is used using caused sample room Be biological safety polystyrene or polypropylene material be fabricated, will not to draw transfer sample pollute and poison Property, polystyrene material water white transparency can observe sample well；Pipette is disposable instrument, avoids the clear of pipette It washes with rinse process, saving experimental implementation time, and material with higher hardness, imbibition tip can effectively be avoided to destroy missing Caused by fluid seepage, the length of tube body is 2 times of imbibition tip length, and imbibition tip is facilitated to be inhaled from small container and jug Take sample.

The purpose of this utility model adopts the following technical scheme that realization：

A kind of disposable pipette, including tube body and imbibition tip, the imbibition tip is connected to the lower end of tube body, described Tube body and imbibition tip are made of polystyrene or polypropylene, and tube body is integrally formed with imbibition tip；Under the tube body End has connecting tube, the bottom end connection imbibition tip of the connecting tube；The length of the imbibition tip is 80.00mm, tube body Length is 160.00mm, and the length of tube body is 2 times of imbibition tip length.

Further, the connecting tube is conical pipe.

Further, the connecting tube is bulb tube.

Further, the tube body is cylindric, and the imbibition tip is coniform.

Further, the outer wall of the tube body is equipped with scale portion.

Further, the internal diameter of the imbibition tip is r, and the internal diameter of the tube body is R, R/r=2-4.

Compared with prior art, the beneficial effects of the utility model are：

The disposable pipette of the utility model, the tube body and imbibition tip of the pipette are integrally formed, can be effectively increased The toughness of tip, appropriateness are bent tip, facilitate the liquid for drawing a small amount of or deep narrow container, it is repeated multiple times to effectively reduce pipette It is polluted using caused sample room, and this pipette is fabricated using the polystyrene material of biological safety, no The sample for drawing transfer can be polluted and toxicity, polystyrene material water white transparency can observe sample well；Pipette For disposable instrument, avoid the cleaning of pipette and rinse process, save the experimental implementation time, and material have it is higher hard Degree can effectively avoid imbibition tip from destroying fluid seepage caused by missing, and the length of tube body is 2 times of imbibition tip length, side Just imbibition tip pipette samples from small container and jug.

Description of the drawings

Fig. 1 is the sectional view of the disposable pipette of embodiment 1；

Fig. 2 is the sectional view of the disposable pipette of embodiment 2.

In figure：1st, tube body；2nd, imbibition tip；3rd, connecting tube.

Specific embodiment

In the following, with reference to attached drawing and specific embodiment, the utility model is described further, it should be noted that Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new Embodiment.

Embodiment 1：

With reference to Fig. 1, a kind of disposable pipette, including tube body 1 and imbibition tip 2, imbibition tip 2 is connected to tube body 1 Lower end, tube body 1 and imbibition tip 2 are made of polystyrene, and tube body 1 is integrally formed with imbibition tip 2；

The lower end of tube body 1 has connecting tube 3, the bottom end connection imbibition tip 2 of connecting tube 3.Connecting tube 3 is conical pipe.Cone The setting of shape pipe is convenient for from imbibition tip 2 sucking liquid in tube body 1.

The length of imbibition tip 2 is 80.00mm, and the length of tube body 1 is 160.00mm, and the length of tube body 1 is imbibition tip 2 2 times of length.

Tube body 1 is cylindric, and imbibition tip 2 is coniform.

The outer wall of tube body 1 is equipped with scale portion, and the volume of measurement is known in the setting in scale portion convenient for user.

The internal diameter of imbibition tip 2 is r, and the internal diameter of tube body 1 is R, R/r=2.

Embodiment 2：

With reference to Fig. 2, a kind of disposable pipette, including tube body 1 and imbibition tip 2, imbibition tip 2 is connected to tube body 1 Lower end, tube body 1 and imbibition tip 2 are made up of polypropylene, and tube body 1 is integrally formed with imbibition tip 2；

The lower end of tube body 1 has connecting tube 3, the bottom end connection imbibition tip 2 of connecting tube 3.Connecting tube 3 is bulb tube.Ball Reduction of speed is played the role of in the setting of shape pipe, and the liquid entered from imbibition tip 2 is first deposited in bulb tube, has slowed down the speed of imbibition Degree.

The length of imbibition tip 2 is 80.00mm, and the length of tube body 1 is 160.00mm, and the length of tube body 1 is imbibition tip 2 2 times of length.

Tube body 1 is cylindric, and imbibition tip 2 is coniform.

The outer wall of tube body 1 is equipped with scale portion, and the volume of measurement is known in the setting in scale portion convenient for user.

The internal diameter of imbibition tip 2 is r, and the internal diameter of tube body 1 is R, R/r=2.4.

The disposable pipette of the utility model, the tube body 1 and imbibition tip 2 of the pipette are integrally formed, can effectively increase Add the toughness of tip, appropriateness is bent tip, facilitates the liquid for drawing a small amount of or deep narrow container, it is repeatedly more to effectively reduce pipette It is secondary to be polluted using caused sample room, and this pipette is fabricated using the polystyrene material of biological safety, The sample for drawing transfer will not be polluted and toxicity, polystyrene material water white transparency can observe sample well；Pipette Manage as disposable instrument, avoid the cleaning of pipette and rinse process, save the experimental implementation time, and material have it is higher Hardness, can effectively avoid imbibition tip 2 from destroying fluid seepage caused by missing, and the length of tube body 1 is the 2 of 2 length of imbibition tip Times, facilitate the pipette samples from small container and jug of imbibition tip 2.

The above embodiment is only the preferred embodiment of the utility model, it is impossible to be protected with this to limit the utility model Range, the variation of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacing belongs to In the utility model range claimed.

Claims (6)

1. a kind of disposable pipette, which is characterized in that including tube body and imbibition tip, the imbibition tip is connected to tube body Lower end, the tube body and imbibition tip are made of polystyrene or polypropylene, and tube body is integrally formed with imbibition tip；It is described The lower end of tube body has connecting tube, the bottom end connection imbibition tip of the connecting tube；The length of the imbibition tip is 80.00mm, the length of tube body is 160.00mm, and the length of tube body is 2 times of imbibition tip length.

2. disposable pipette as described in claim 1, which is characterized in that the connecting tube is conical pipe.

3. disposable pipette as described in claim 1, which is characterized in that the connecting tube is bulb tube.

4. disposable pipette as described in claim 1, which is characterized in that the tube body is cylindric, the imbibition tip It is coniform.

5. disposable pipette as described in claim 1, which is characterized in that the outer wall of the tube body is equipped with scale portion.

6. disposable pipette as described in claim 1, which is characterized in that the internal diameter of the imbibition tip is r, the tube body Internal diameter be R, R/r=2-4.