CN215533976U - Waste liquid suction device - Google Patents

Abstract

The utility model provides a waste liquid suction device which at least comprises a negative pressure generator and a liquid suction device, wherein the liquid suction device at least comprises a handle, a suction pipe is connected between the handle and the negative pressure generator, the suction pipe is inserted into the handle, and an inlet of the suction pipe is positioned at the front end of the handle. The detachable straw cap that is connected with in import department of straw, at the in-process that the straw inhaled waste liquid, only the straw cap externally contacts with the waste liquid, only need retrieve the straw cap after the absorption is accomplished, both can avoid remaining the problem that the waste liquid on surface drips. This scheme overall structure is simple, and convenient to use helps increasing the work efficiency who absorbs the waste liquid.

Description

Waste liquid suction device

Technical Field

The utility model relates to the field of detection devices, in particular to a waste liquid suction device.

Background

In the field of medical testing, a wide variety of testing reagents are typically used to test a sample, leaving a large volume of waste solution after testing. Because the components of the detection reagent are complex, the detection reagent is difficult to clean after being dripped on a floor or a table top, and a lot of detection reagents easily generate toxic gas which can pollute the test environment after being dripped. However, although a general liquid transfer device (such as a syringe) can satisfy the recovery function, the capacity is small, and it is difficult to recover the waste liquid at one time, so that the recovery efficiency is low. If the device of pump class is used purely to aspirate and retrieve, then all need to wash the mouth of pipe after every suction, otherwise remain some waste liquid of mouth of pipe and probably drip on the desktop even on the human body, cause the pollution to the experimental environment.

SUMMERY OF THE UTILITY MODEL

The technical problem to be solved by the utility model is as follows: the prior art is difficult to conveniently realize the recovery of the waste liquid, and has the problems of complex operation and lower working efficiency.

In order to solve the technical problems, the technical scheme provided by the utility model is as follows:

the utility model provides a waste liquid suction device which at least comprises a negative pressure generator and a liquid suction device, wherein the liquid suction device at least comprises a handle, a suction pipe is connected between the handle and the negative pressure generator, the suction pipe is inserted into the handle, the inlet of the suction pipe is positioned at the front end of the handle, and the inlet of the suction pipe is detachably connected with a suction pipe cap.

Preferably, the front end of the handle is provided with a straw cap support, and the straw cap is detachably and fixedly connected to the straw cap support.

Further, still including the connecting device who is used for fixed straw cap, be equipped with control button on the handle, be equipped with transmission in the handle, transmission connects control button with connecting device presses down when control button the straw cap is automatic to be followed drop on the straw cap support.

Further, the liquid aspirator comprises a pipette.

Preferably, the negative pressure generator is a sputum aspirator.

The advantage of this scheme lies in, at first, the outside of straw has connect the handle, makes things convenient for handheld gripping, and the operation that the tester of being convenient for carried out the waste liquid and absorbs. Moreover, the end of the suction pipe is connected with a detachable suction pipe cap, when waste liquid is sucked, the suction pipe cap is in contact with the waste liquid, the suction pipe cap can be directly replaced after the suction is completed, waste liquid remained on the surface of the suction pipe cap is prevented from dropping to the outside, the surface of the suction pipe does not need to be cleaned after the waste liquid is sucked every time, and the working flow is simplified. Moreover, because the negative pressure generator is arranged, the waste liquid can be automatically absorbed after all, and the waste liquid can be introduced into a larger container after being absorbed by the negative pressure generator, thereby solving the problem that the capacity of the common liquid-transferring device is too small and increasing the working efficiency. Moreover, through changing the straw cap, can also prevent that different waste liquid from producing toxic gas by direct contact in the outer space, the waste liquid of absorption can be directly guided into the enclosure space in the negative pressure generator, and then prevents cross contamination between the different waste liquids to avoid producing toxic gas.

Drawings

FIG. 1 is a schematic view of a preferred embodiment of a waste extraction device;

FIG. 2 illustrates an example of a transmission;

description of reference numerals: 1-handle, 11-straw cap, 110-straw cap bracket, 12-control button, 13-straw, 2-negative pressure generator.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "front", "rear", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, are only for convenience in describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as being fixedly connected, integrally connected, or detachably connected; may be communication within two elements; they may be directly connected or indirectly connected through an intermediate, and those skilled in the art will understand the specific meaning of the above terms in the present invention in specific situations.

In a preferred embodiment of the present invention, as shown in fig. 1, the waste liquid suction means includes at least a negative pressure generator 2 and a liquid suction means. Wherein, the negative pressure generator can form a negative pressure environment inside, thereby sucking external objects into the negative pressure generator. The common negative pressure generator is a suction pump and the like, and can be directly used in the scheme. The liquid suction device at least comprises a handle 1, a suction pipe 13 is connected between the handle 1 and the negative pressure generator 2, and the inlet of the suction pipe 13 is positioned at the front end of the handle 1. The detachable fixedly connected with straw cap 11 of front end of straw 13, when straw 13 absorbed waste liquid, straw cap 11 and waste liquid direct contact, and straw 13 only plays the water conservancy diversion effect to waste liquid in inside, treats that the absorption finishes the back, only needs to lift straw cap 11 off and collect, can avoid the problem of waste liquid drippage. The pipette cap 11 may be disposable or reusable after cleaning, and may be specifically designed according to the needs of the test scenario.

Considering that a general suction pipe 13 is a hose and it is inconvenient to mount a suction pipe cap 11 directly on the hose, it is preferable that a suction pipe cap holder 110 is provided at a front end of the handle 1, the suction pipe cap 11 is coupled to the suction pipe cap holder 110, and an end of the suction pipe 13 is located in the suction pipe cap holder. The straw cap support 110 is provided to help the installation of the straw cap 11, and the straw cap 11 can be fixed through a fastener, a thread or other connecting devices, so that the straw cap 11 can be assembled and disassembled more conveniently.

The handle 1 is also provided with a control button 12, and a transmission device is arranged between the control button 12 and the connecting device. The transmission device can be triggered by pressing the control button 12, and drives the connecting device to loosen the straw cap 11, so that the straw cap 11 can automatically fall off; while in the state in which the control button 12 remains in place, the connection means can lock said pipette cap 11 to perform the operation of aspirating the waste liquid. Referring to fig. 2, the above-mentioned connection device may be a retractable fixture block, and after the control button 12 is pressed, the fixture block can be retracted into the straw cap holder 110 through the mechanical transmission of the transmission device, so that the straw cap 11 can be detached. Of course, the scheme shown in fig. 2 is only an example, and the specific structure may also be another simple structure different from that of fig. 2, and the related structure is widely used in the prior art, and the specific structure is not described in detail herein, and the specific structure can be directly imagined by the skilled person.

Alternatively, the liquid aspirator comprises a waste pipette. The liquid transfer device is a common instrument for test sampling, but the structure is complex, and the liquid transfer device is directly used for removing waste liquid and belongs to large and small materials. In this embodiment, the pipette is a discarded pipette, and after taking out the components inside the pipette, the pipette 13 is directly inserted into the pipette and extends out from the front end of the pipette, and the pipette is directly used as the handle 1. In addition, the existing pipettor is designed according to human engineering in appearance, and is quite convenient to hold. Further, the prior pipette has a function of automatically removing the end cap mounted at the front end by pressing a button, and specifically, reference may be made to the related structure described in US20050155438a1, which has been widely applied to various pipettes and is very suitable for the technical requirement of the present solution that the pipette cap 11 needs to be automatically removed. Meanwhile, the waste pipettor is recycled, so that the cost is reduced.

Similarly, the negative pressure generator 2 can be a waste sputum aspirator. Sputum aspirators have been used in a large number of settings in hospitals and the like, and therefore, a large amount of sputum aspirators are discarded and reused, which also contributes to cost reduction. Moreover, the supply amount can be ensured correspondingly in consideration of the relevance between the medical detection field and the hospital.

In conclusion, the above description is only for the preferred embodiment of the present invention and should not be construed as limiting the present invention, and any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims (5)

1. The utility model provides a waste liquid suction means, its characterized in that includes negative pressure generator (2) and liquid suction means at least, liquid suction means includes handle (1) at least, the handle with be connected with straw (13) between the negative pressure generator, the straw inserts in the handle, just the import of straw is located the front end of handle, the detachable straw cap (11) that is connected with in import department of straw.

2. The waste liquid suction apparatus as claimed in claim 1, wherein a suction cap holder (110) is provided at a front end of the handle, and the suction cap is detachably and fixedly attached to the suction cap holder.

3. The waste liquid suction device as claimed in claim 2, further comprising a connecting means for fixing a pipette cap, wherein a control button (12) is provided on the handle, a transmission means is provided in the handle, the transmission means connects the control button and the connecting means, and the pipette cap is automatically detached from the pipette cap holder when the control button is pressed.

4. The waste liquid extracting apparatus as set forth in claim 3, wherein the liquid extractor comprises a pipette.

5. The waste liquid suction apparatus as claimed in any one of claims 1 to 4, wherein the negative pressure generator is a sputum aspirator.

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