CN219847511U

CN219847511U - A degassing unit for abandoning pipettor rifle head

Info

Publication number: CN219847511U
Application number: CN202321108774.7U
Authority: CN
Inventors: 张玉凤
Original assignee: Xiamen Hospital Of TCM
Current assignee: Xiamen Hospital Of TCM
Priority date: 2022-12-12
Filing date: 2023-05-10
Publication date: 2023-10-20
Anticipated expiration: 2033-05-10

Abstract

The utility model relates to a disinfection device for a waste pipette gun head, which comprises a covered barrel body and a barrel cover, wherein a filter basket and a disinfection circulating system are arranged in the barrel body; the filter basket is used for storing the waste gun heads, the disinfection circulating system comprises a disinfection spray head and a liquid conveying device, and the liquid conveying device is respectively communicated with the top and the bottom of the barrel body through pipelines; the disinfection spray head is fixed on the barrel cover and passes through a pipeline liquid conveying device at the top of the barrel body; the liquid conveying device controls the disinfectant at the bottom of the pumping barrel body to be supplied to the disinfection spray head, so that the disinfectant is sprayed into the barrel body for disinfection, and the circulating disinfection is realized, so that no dead angle is achieved in disinfection.

Description

A degassing unit for abandoning pipettor rifle head

Technical Field

The utility model relates to the technical field of biosafety laboratory appliances, in particular to a disinfection device for a waste pipette tip.

Background

With the great development of molecular detection technology, the requirements on a molecular laboratory are higher and higher, and the PCR technology, the sequencing technology, the flow fluorescence technology and the like become the dominant force in molecular detection, and any detection method involves extraction of DNA and RNA of tissues or cells, preparation of an amplification system, loading of an amplification template, hybridization and the like; all operations are completed by transferring the gun heads connected with the pipettors in a biosafety cabinet or a clean bench, so that the gun heads can be used in a large amount in experiments; during experimental operation, the tips of the pipettes are considered a source of contamination, thus preventing the used tips of the pipettes from becoming a heavy, medium and heavy source of contamination during operation.

The method is exponentially similar to gene amplification, so that all used gun heads can be beaten into a small container containing disinfectant, so that degradation treatment of the gun head surface gene fragments is achieved, and experimental pollution caused by the gene fragments is avoided. At present, most of garbage cans used in laboratories for containing waste tips of pipettes are small containers with covers, medical garbage bags are sleeved or not sleeved in the containers, and the container covers are semi-open, so that disinfectant is contained in the garbage bags or the cans, and aerosol generated by friction between a gene segment and the waste tips, which are driven into the containers after the tips of the pipettes are used, is eliminated, and the waste tips are prevented from becoming a pollution source of the laboratory.

Because the gun heads are made of plastic materials, whether imported abroad or homemade, the gun heads are mainly made of polypropylene and have lighter textures, the used gun heads can float above the liquid level of the disinfectant when being driven into the disinfectant container, and the amount of the contained disinfectant is irrelevant, so that after the amount of the gun heads is paved on the liquid level of the disinfectant in the container, the rest gun heads can be overlapped on the original gun heads, and a disinfectant blind area is possibly formed; there is no way to sterilize the gun head superimposed thereon.

In order to avoid that the gun head which is driven into the container after being fully paved with the liquid level cannot be soaked by the disinfectant, the experiment needs to be interrupted for many times in the operation process, the cover is uncovered to observe whether the gun head in the container can be soaked in the disinfectant or the container with the completely paved liquid level is cleaned, the disinfectant and the gun head in the container before being poured out for many times are required to be added again, the disinfectant is added again to carry out a new round of operation, the working efficiency is greatly reduced while inconvenience is brought to the operation, the consumption of the disinfectant is greatly increased, the disinfectant for degrading the gene fragments has certain toxicity, the recovery treatment cost is increased, and certain hidden danger exists for environmental pollution.

Disclosure of Invention

In order to solve the problems, realize the circulated disinfection and achieve the disinfection without dead angle, the utility model provides a disinfection device for the waste pipette tip. The following technical scheme is adopted:

the sterilizing device for the waste pipette gun head comprises a covered barrel body and a barrel cover, wherein a filter basket and a sterilizing circulation system are arranged in the barrel body;

the filter basket is used for storing the waste gun heads, the disinfection circulating system comprises a disinfection spray head and a liquid conveying device, and the liquid conveying device is respectively communicated with the top and the bottom of the barrel body through pipelines;

the disinfection spray head is fixed on the barrel cover and is connected with the liquid conveying device through a pipeline at the top of the barrel body;

the liquid conveying device controls the disinfectant at the bottom of the pumping barrel body to be supplied to the disinfection spray head, so that the disinfectant is sprayed into the barrel body for disinfection.

Optionally, a positioning shaft is arranged on one side of the edge of the barrel cover and is used for fixedly connecting the barrel body and the barrel cover;

the barrel cover can rotate relative to the barrel body by taking the positioning shaft as a circle center and is used for opening the barrel cover to form a throwing opening.

Optionally, a ring is rotatably installed on the barrel cover, the ring is located near the outer edge of the barrel cover, and the ring can rotate along the circumferential direction relative to the barrel cover;

a gap is formed in the circular ring and is used for communicating the liquid conveying device and the disinfection spray head through pipeline routing.

Optionally, a fixed hook is arranged on the barrel cover towards the inner side of the barrel body and used for fixing the disinfection spray head.

Optionally, the top of the filter basket is provided with an opening, and two sides of the opening are provided with hanging lugs oppositely for hanging on the wall of the barrel body;

the bottom of the filter basket is provided with a movable sealing cover, and a certain interval exists between the bottom of the filter basket and the bottom of the barrel body.

Optionally, the movable cover bottom is provided with a left cover and a right cover respectively and is hinged to the bottom of the filter basket through hinges;

the left cover and the right cover are oppositely arranged, and a cross rod bolt structure is arranged on the coaxial line of the left cover and the right cover and used for controlling the opening and closing of the left cover and the right cover.

Optionally, the barrel body is made of transparent materials, and the body of the filter basket is in a fine net shape;

the outer diameter of the filter basket is adapted to the inner diameter of the barrel body.

Optionally, the disinfection shower nozzle is the atomizer, liquid conveyor includes hydraulic control valve and miniature water pump.

Optionally, a liquid outlet is formed in the side wall, close to the bottom, of the barrel body and is used for communicating the liquid conveying device through a pipeline.

Optionally, the liquid outlet is connected with the pipeline and is provided with a three-way pipe;

the three-way pipe is provided with a liquid outlet at one side far away from the liquid outlet and the pipeline respectively;

the three-way pipe is provided with a switch valve at the liquid outlet.

In summary, the utility model has the following beneficial effects:

1. according to the utility model, the disinfection spray head is arranged on the barrel cover to spray disinfection liquid to the barrel body, the waste gun heads are driven into the built-in filter basket, the filter basket is used for filtering the disinfection liquid, and the phenomenon that the gun heads float and spread the liquid level of the disinfection liquid in the container due to excessive disinfectant liquid accumulation in the barrel body is avoided, so that the disinfection effect of the gun heads at the uppermost layer is affected due to accumulation.

2. According to the utility model, the three-dimensional disinfection is achieved by spraying the disinfectant through the disinfection spray head, so that the waste gun head can be fully soaked by the disinfectant to degrade the gene fragments in the process of experiment on one hand; on the other hand, through the vaporific spraying, the disinfectant particles are from top to bottom, so that not only is the gun head overlapped on the upper layer disinfected, but also all the spaces in the device can be disinfected, thereby achieving the purpose of disinfection without dead angles.

3. According to the utility model, the liquid outlet is arranged on the barrel body, the smoothness of the liquid outlet is ensured, the liquid outlet is communicated with the disinfectant conveying pipeline, the disinfectant is sucked into the top through the liquid outlet by the liquid conveying device, and then the disinfectant is sprayed by the spray nozzle to achieve three-dimensional disinfection, so that the disinfectant is circularly used in the whole experimental process, the polluted gun head and the air in the barrel are subjected to bidirectional disinfection, and meanwhile, the discharge of waste liquid is subjected to harmless transfer.

Drawings

FIG. 1 is a schematic view of the overall structure of the present embodiment;

FIG. 2 is a cross-sectional view of the overall structure of the present embodiment;

FIG. 3 is an exploded view of the tub of the present embodiment;

FIG. 4 is a schematic view showing the movement of the tub cover according to the present embodiment;

fig. 5 is a sectional view of the inside of the tub of the present embodiment;

fig. 6 is a schematic view of the structure of the filter basket of the present embodiment.

Reference numerals illustrate: 1. a tub body; 11. a bayonet; 12. a liquid outlet; 13. a three-way pipe; 14. a liquid outlet; 15. opening and closing a valve; 2. a barrel cover; 21. positioning a shaft; 22. a circular ring; 23. a notch; 3. a filter basket; 31. hanging lugs; 32. a left cover; 33. a right cover; 34. a hinge; 35. a cross bar latch; 4. sterilizing the spray head; 5. a micro water pump; 6. a pipeline.

Detailed Description

The utility model is described in further detail below with reference to fig. 1-6.

The embodiment of the utility model discloses a disinfection device for a waste pipette tip, which is mainly used for disinfecting the waste pipette tip of a pipette during experiments, and consists of a cylindrical barrel body 1, a barrel body 1 internally provided with a filter basket 3, a barrel cover 2 and a disinfection circulating system.

The top opening of the barrel body 1 provided by the utility model is used for installing the barrel cover 2, as shown in fig. 3, the size of the barrel cover 2 can be matched with that of the barrel body 1 or slightly larger, the barrel cover 2 is penetrated with a positioning shaft 21 along the vertical direction, the top of the barrel body 1 is relatively provided with a bayonet 11 at the near edge of the barrel body, which is used for clamping and fixing the positioning shaft 21, so that the barrel cover 2 and the barrel body 1 are combined, the barrel cover 2 can rotate left and right but cannot slide, as shown in fig. 4, the positioning shaft 21 mainly serves as a central shaft of the barrel cover 2 to enable the barrel cover 2 to rotate left and right by taking the shaft as a circle center, and the rotated opening forms a throwing opening as a driving opening of a waste gun head.

The utility model provides a barrel body 1, wherein a liquid outlet 12 is arranged near the bottom end of one side of the outer wall of the barrel body and is provided with 2 points; the 1 st point is used as an output outlet of the disinfectant in the experimental operation process; the 2 nd point is a discharge port for waste disinfectant after the operation is finished, so that the traditional pouring from the outer opening of the barrel is avoided to cause the liquid to splash or overflow.

According to the barrel body 1 provided by the utility model, the filter basket 3 is arranged in the barrel body 1, and the barrel body 1 is preferably made of transparent materials, so that the amount of the waste gun heads in the barrel can be observed by naked eyes, and the waste gun heads can be treated in time.

The size of the filter basket 3 is matched with that of the barrel body 1, namely, the outer diameter of the filter basket 3 is matched with the inner diameter of the barrel body 1, a certain interval exists between the bottom of the filter basket 3 and the bottom of the barrel body 1, and preferably, the bottom of the filter basket 3 is higher than the position of the liquid outlet 12 near the barrel bottom, and the filter basket 3 is in a fine net shape. The top opening of the filter basket 3 is provided with hanging lugs 31 on two opposite sides of the opening, and the hanging lugs are used for hanging the filter basket 3 on the barrel wall of the barrel body 1, as shown in fig. 4, and the purpose is to firmly fix the filter basket 3 on the barrel wall in the experimental process, and collect the waste gun heads at the same time, so as to prevent the waste gun heads from blocking the liquid outlet 12 and affecting the conveying speed of the disinfectant.

The disinfection circulating system provided by the utility model comprises a disinfection spray head 4 and a liquid conveying device, wherein the liquid conveying device comprises a hydraulic control valve and a miniature water pump 5, and the hydraulic control valve and the miniature water pump 5 are all existing equipment and are not described herein. The hydraulic control valve is used for controlling the liquid pressure of the liquid flow extracted by the micro water pump 5, as shown in fig. 2, the disinfection spray head 4 adopts an atomization spray head, a fixed hook (not shown in the drawing) is arranged on the inner side of the barrel body 1 towards the barrel cover 2 and used for fixing the disinfection spray head 4, the micro water pump 5 is respectively communicated with the top of the barrel body 1 and the liquid outlet 12 arranged at the bottom of the barrel body through a pipeline 6, the disinfection spray head 4 is supplied with disinfection liquid at the bottom of the barrel body 1 by the micro water pump 5, and then the disinfection liquid is sprayed into the barrel body 1 to form atomization particles for disinfecting the barrel, and the size of the sprayed disinfection liquid is regulated by a switch at the liquid outlet 12 of the compressor.

The barrel cover 2 provided by the utility model is in a circular structure, the barrel cover is divided into three parts, the first part is a connecting part, namely, the outer edge of the barrel cover 2 is used as a fixed connecting part of a positioning shaft 21, a circular ring 22 is rotatably arranged at the part close to the circular outer edge and used as a second part, the circular ring 22 and the barrel cover 2 are concentric circles, the circular ring can rotate along the circumferential direction relative to the barrel cover 2, a notch 23 is formed in the circular ring and is used for connecting the miniature water pump 5 and the disinfection spray head 4 in a wiring way of the pipeline 6, the third part is a middle part, namely, the part surrounded by the circular ring 22, is used as a main body of the barrel cover 2, a fixed hook is arranged towards the inner side of the barrel body 1 to fix the disinfection spray head 4, and the notch 23 can move along with the rotation of the circular ring 22, so that the notch 23 mainly acts as the position of a disinfection liquid conveying pipe entering the barrel is not influenced no matter how the barrel cover 2 moves.

The disinfection circulation system is characterized in that the working principle of the disinfection circulation system is that a micro water pump 5 is turned on and turned off, when the disinfection circulation system is in a working state, the micro water pump 5 pumps disinfection liquid in a barrel body 1 and is conveyed to the top end provided with a disinfection spray head 4 through a liquid outlet 12, the disinfection spray head 4 sprays the disinfection liquid in the barrel, space in the barrel is filled with disinfection liquid atomized particles and is mixed with aerosol in the barrel, the atomized particles can quickly fall down due to gravity and are attached to the surface of the gun head again after falling, when the atomized particles reach a certain amount, the atomized particles are mutually fused to form liquid drops, the atomized particles continuously slide down to the gun head below, the surface of the gun head is degraded until finally sliding into the disinfection liquid and are sucked up again to enter the next spraying disinfection circulation again.

The disinfectant can be recycled in a single operation, because the bases of the gene fragments can form breaks when being in micro-contact with the disinfectant to lose the integrity of the gene fragments, and most of the disinfectant used in the molecular experiment operation is chlorine-containing disinfectant which is not easy to volatilize, so that the effective concentration is unchanged in the recycling process, and the degradation capability of the gene fragments is not influenced.

In the utility model, preferably, a three-way pipe 13 is arranged between a liquid outlet 12 at the bottom of the barrel body 1 and the pipeline 6, one pipe orifice of the three-way pipe 13 is connected with the liquid outlet 12, one pipe orifice is connected with the pipeline 6 for connecting with a water inlet of the miniature water pump 5, and one pipe orifice is provided with a switch valve 15 as a liquid outlet 14 of waste liquid.

The bottom of the filter basket 3 provided by the utility model is provided with a movable cover bottom, the movable cover bottom is provided with a left cover 32 and a right cover 33 respectively, the movable cover bottom is hinged to the bottom of the filter basket 3 through a hinge 34, the left cover 32 and the right cover 33 are of two semicircular structures, the two semicircular structures are oppositely arranged, and a cross rod bolt 35 structure is arranged on the coaxial line of the left cover 32 and the right cover 33 and used for controlling the opening and closing of the left cover 32 and the right cover 33.

As shown in fig. 6, the hinge 34 is hinged with the comb-shaped ring 22 with equal size at the bottom of the filter basket 3, and the cross rod bolt 35 is structured to pass through the comb-shaped ring 22 by a cross rod, thereby achieving the purpose of locking the bottom of the basket and achieving the firmness of fixation.

The cross rod bolt 35 is divided into a left section and a right section which are L-shaped, the left section is a solid round rod, and the diameter of a part of the top of the left section is reduced; the tail part of the right section is a solid round rod, the top end of the right section is a hollow round tube, the outer diameter of the right section is equal to that of the solid part, and the hollow part and the reduced diameter part of the top end of the left section form . When the gun head is needed to be thrown away, the garbage bottom is sleeved, the cross rod is pulled off by the separation bag, and the bottom directly falls from the joint under the gravity, so that the gun head falls into the garbage bag.

After the experiment is finished, the micro water pump 5 is turned off, the waste liquid outlet 14 is connected into the waste liquid recycling bin, the switch valve 15 is turned on, and the waste liquid is discharged into the waste liquid recycling bin and is sent to related companies for treatment. After the waste liquid is discharged, the built-in filter basket 3 is lifted, the bottom part is sleeved into the medical garbage bag, the cross rod bolt 35 at the bottom part is pulled back, the integrity of the bottom part is lost, and the gun head slides into the garbage bag; finally, the barrel cover 2 can be taken out from the positioning shaft 21, the atomizing nozzle can be taken off from the fixed hook, and the barrel cover is flatly paved in a biosafety cabinet or a medical work clean bench for final integral ultraviolet disinfection.

The disinfectant is recycled in the whole experimental process, so that the polluted gun head and the air in the barrel are disinfected bidirectionally, and meanwhile, the gun head is thrown away by using and lowering the inner filter basket 3, so that the waste liquid is discharged and the waste gun head is recycled to realize harmless transfer, and the safety of experimental personnel is ensured, and meanwhile, a protective wall is built for preventing the pollution of a laboratory.

The above embodiments are not intended to limit the scope of the present utility model, so: all equivalent changes in structure, shape and principle of the utility model should be covered in the scope of protection of the utility model.

Claims

1. A degassing unit for abandonment pipettor rifle head, its characterized in that: comprises a covered barrel body and a barrel cover, wherein a filter basket and a disinfection circulating system are arranged in the barrel body;

the filter basket is used for storing the waste gun heads; the disinfection circulating system comprises a disinfection spray head and a liquid conveying device, and the liquid conveying device is respectively communicated with the top and the bottom of the barrel body through pipelines;

2. A sterilizing unit for a waste pipette tips as defined in claim 1, wherein: the barrel cover is provided with a positioning shaft at one side of the edge of the barrel cover and is used for fixedly connecting the barrel body and the barrel cover;

3. A sterilizing unit for a waste pipette tips as defined in claim 2, wherein: the barrel cover is rotatably provided with a circular ring, the circular ring is arranged close to the outer edge of the barrel cover, and the circular ring can rotate along the circumferential direction relative to the barrel cover;

4. A sterilizing unit for a waste pipette tips as recited in claim 3 wherein: the barrel cover is provided with a fixed hook towards the inner side of the barrel body and is used for fixing the disinfection spray head.

5. A sterilizing unit for a waste pipette tips as defined in claim 1, wherein: the top of the filter basket is provided with an opening, and two sides of the opening are provided with hanging lugs which are used for being hung on the wall of the barrel body;

6. A sterilizing unit for a waste pipette tips as recited in claim 5 wherein: the movable bottom sealing cover is provided with a left cover and a right cover respectively and is hinged to the bottom of the filter basket through hinges;

7. A sterilizing unit for a waste pipette tips as defined in claim 1, wherein: the barrel body is made of transparent materials, and the body of the filter basket is in a fine net shape;

8. A sterilizing unit for a waste pipette tips as defined in claim 1, wherein: the disinfection shower nozzle is the atomizer, liquid conveyor includes hydraulic control valve and miniature water pump.

9. A sterilizing unit for a waste pipette tips as defined in claim 1, wherein: a liquid outlet is formed in the side wall, close to the bottom, of the barrel body and is used for communicating the liquid conveying device through a pipeline.

10. A sterilizing unit for a waste pipette tips as defined in claim 9, wherein: the liquid outlet is connected with the pipeline and is provided with a three-way pipe;

the three-way pipe is provided with a switch valve at the liquid outlet.