CN212702009U - Tweezers for aseptic operation of biological safety cabinet - Google Patents
Tweezers for aseptic operation of biological safety cabinet Download PDFInfo
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- CN212702009U CN212702009U CN202021081866.7U CN202021081866U CN212702009U CN 212702009 U CN212702009 U CN 212702009U CN 202021081866 U CN202021081866 U CN 202021081866U CN 212702009 U CN212702009 U CN 212702009U
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- oral area
- tweezers
- forceps
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- 230000007704 transition Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims abstract description 9
- 238000012360 testing method Methods 0.000 abstract description 7
- 238000004659 sterilization and disinfection Methods 0.000 abstract description 5
- 230000001954 sterilising effect Effects 0.000 abstract description 4
- 238000007142 ring opening reaction Methods 0.000 description 11
- 241000894006 Bacteria Species 0.000 description 6
- 238000004113 cell culture Methods 0.000 description 5
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- 238000011160 research Methods 0.000 description 2
- 210000001519 tissue Anatomy 0.000 description 2
- 229960005486 vaccine Drugs 0.000 description 2
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- 230000007547 defect Effects 0.000 description 1
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- 201000010099 disease Diseases 0.000 description 1
- 208000037265 diseases, disorders, signs and symptoms Diseases 0.000 description 1
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- 238000000338 in vitro Methods 0.000 description 1
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- 239000000463 material Substances 0.000 description 1
- 239000002547 new drug Substances 0.000 description 1
- 235000016709 nutrition Nutrition 0.000 description 1
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Abstract
The utility model discloses a tweezers for aseptic technique of biosafety cabinet, including the afterbody and by the afterbody towards the tweezers arm that same direction symmetry extends, circle oral area and oral area, the tweezers arm comprises transition portion and extension, the width and the thickness of transition portion keep unanimous, the extension is middle wide narrow shape in two, and its shrinkage that is close to the extension of circle oral area is greater than the other end of extension, circle oral area comprises two semi-arcs, and all is provided with interior insection on the inner wall of two semi-arcs's inner wall and oral area, and interval between the adjacent interior insection is 0.05-0.1 cm. The utility model discloses a circle oral area and oral area that sets up when the round bar-shaped article such as centre gripping biological culture bottle lid, centrifuge tube cap, test tube, give its a plurality of impetus, fixed quilt presss from both sides the thing, conveniently opens and closes, reduces the emergence of skidding, half way break away from the phenomenon, and tweezers circle oral area can flame burn the sterilization and fix to and place contactless cabinet face and keep sterile condition.
Description
Technical Field
The utility model relates to a tweezers, concretely relates to tweezers that are used for biological safety cabinet aseptic technique.
Background
Biomedical research often requires a method for continuing aseptic culture work, including bacteria and cell culture, and simulating in-vivo environment (sterility, proper temperature, pH value, certain nutritional conditions and the like) in vitro to enable the in-vivo environment to survive, grow, reproduce and maintain main structures and functions. Bacteria and cell culture play a significant role in drug research and development, new drug screening, vaccine research and development, gene engineering drug research and development, monoclonal antibody preparation, vaccine production and the like. With the increasing demand of biological products, the culture technology of bacteria and animal cells has been developed in the direction of large-scale, automation and refinement. In particular, cell culture, whether two-dimensional (2D) tumor cell line cultures and animal human tumor xenografts (PDTXs) that have been used as tumor models and make a great contribution to cancer research, or more recently organoid studies (allowing for tissue biology, development, regeneration, disease modeling, organ transplantation technology improvement, drug discovery/efficacy assessment, and toxicology studies in an environment mimicking endogenous cellular tissue and organ architecture) are the most basic and most commonly used cell cultures in the laboratory.
In the sterile operation process of bacteria and cell culture safety cabinets in laboratories, tweezers suitable for clamping round rod-shaped objects such as culture bottle caps, centrifuge tube caps, test tubes and the like are often found to be unavailable, and the bacteria are killed and fixed by repeated flame burning so as to ensure the sterile operation. When the conventional flat-mouth tweezers are used, the problem that round rod-shaped objects such as covers and test tubes with larger calibers cannot be conveniently clamped is often encountered, and the phenomenon that the clamped objects slip or even are separated halfway can also occur in the clamping process. Although there are many tweezers products on the market, there are also tweezers patents such as the tweezers product disclosed in patent No. CN201220454768, which is used for holding capillary (usually 1-2mm in diameter), and its structural groove is only used for installing sponge, which can not be flame burned for sterilization and fixation, nor can be used for holding bottles and test tubes, and is inconvenient for bacteria and cell aseptic operation in biosafety cabinets. The characteristics of large caliber, anti-skid insection, heavy middle wide tail part (which is convenient for placing the face of the cabinet after disinfection and the mouth part of the cabinet upwarps to keep a sterile state) and thin transition part are creatively designed in the embodiment, and the combined performance of the characteristics is not seen in similar articles. To aseptic manipulation's current tweezers product in the biosafety cabinet, it is inconvenient to have the use mostly, uses the flexibility low, has also increased the consumption of manpower and material resources when having increaseed the pollution possibility during the use, consequently, designs a section tweezers that are used for aseptic manipulation of biosafety cabinet and is very necessary, the utility model discloses the product has had the function of tweezers commonly used concurrently, has possessed other special properties again.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model aims to provide a tweezers that are used for aseptic technique of biosafety cabinet that the practicality is strong, use the flexibility ratio high.
The utility model discloses a following technical scheme realizes:
the tweezers for the aseptic operation of the biosafety cabinet are characterized by comprising a tail part, tweezers arms, a ring opening part and an opening part, wherein the tweezers arms symmetrically extend towards the same direction from the tail part, the tweezers arms are composed of a transition part and an extension part, the width and the thickness of the transition part are kept consistent, the extension part is in a shape with a wide middle part and two narrow ends, the contraction degree of the extension part close to the ring opening part is larger than the other end of the extension part, the ring opening part is composed of two semi-arc-shaped parts, inner insections are arranged on the inner walls of the two semi-arc-shaped inner walls and the opening part, and the distance between the adjacent inner insections is 0.05-0.1 cm.
The forceps for the sterile operation of the biological safety cabinet are characterized in that the total length of the forceps is 15-20cm, the whole width is 0.3-1.2cm, and the closing thickness is 0.3-0.5 cm.
The forceps for the sterile operation of the biological safety cabinet are characterized in that a gap of 0.1-0.2cm is formed between the transition parts, the thickness of the transition parts is 0.1cm, and the transition parts naturally open at an angle of 10-20 degrees and synchronously extend for 2cm to be connected with the extension parts.
The forceps for aseptic operation of the biological safety cabinet are characterized in that the extension part accounts for one third of the length of the whole forceps, the thickness of the extension part is increased to 0.2cm, and the widest part of the extension part is 1.2 cm.
The tweezers for the aseptic operation of the biological safety cabinet are characterized in that outer insections are arranged on the outer sides of the extension parts, the depth and the width of each outer insection are 0.1cm, and the interval between every two adjacent outer insections is 0.1 cm.
The tweezers for the aseptic operation of the biological safety cabinet are characterized in that the width of the opening of the ring is 0.4cm, and the opening of the ring forms a circle with the diameter of 2-3cm under the natural opening state of the tweezers.
The tweezers for the aseptic operation of the biological safety cabinet are characterized in that the opening part extends horizontally along the whole tweezers, the width and the thickness of the opening part are the same as those of the opening part, and the length of the opening part is 1 cm.
The utility model discloses a circle oral area and oral area that sets up, when the round bar-shaped article such as centre gripping biological culture bottle lid, centrifuge tube cap, test tube, give its a plurality of impetus, fixed quilt presss from both sides the thing, conveniently opens and closes, reduces to skid, half way breaks away from the emergence of phenomenon, and tweezers circle oral area can repeat flame burning sterilization and fixed to and place contactless cabinet face and keep sterile condition, the utility model discloses simple structure, convenient to use, the practicality is stronger.
Drawings
Fig. 1 is a schematic top view of the present invention;
FIG. 2 is a schematic view of the outer structure of the present invention;
FIG. 3 is a schematic view of the inner side structure of the present invention;
in the figure, 1-tail, 2-forceps arm, 21-transition part, 22-extension part, 23-external insection, 3-ring mouth part, 31-internal insection and 4-mouth part.
Detailed Description
The invention is described in further detail below with reference to the accompanying drawings, and specific embodiments are given.
The utility model relates to a tweezers for aseptic technique of biological safety cabinet, this tweezers are through improving traditional tweezers to the realization is got the clamp of round rod shaped article such as biological culture bottle lid, centrifugal tube lid and test tube, improves the flexibility ratio of using and enlarges the scope of using.
The specific structure of the forceps is shown in figures 1-3, and comprises a tail part, forceps arms symmetrically extending from the tail part towards the same direction, a ring opening part and a mouth part, wherein the total length of the forceps is 15-20cm, the whole width is 0.3-1.2cm, and the closing thickness is 0.3-0.5 cm. The forceps arm consists of a transition part and an extension part, the width and the thickness of the transition part are kept consistent, the transition part is opened at an angle of 10-20 degrees and synchronously extends for 2cm to be connected with the extension part, a gap of 0.1-0.2cm is arranged between the transition parts, and the thickness of the transition part is 0.1 cm; the extension is the shape that the middle is wide two narrow, and its shrinkage degree of extension that is close to circle oral area is greater than the other end of extension, specifically is that the extension accounts for the third of whole tweezers length to thicken to 0.2cm, its widest department is 1.2cm, for the user of convenience holds tweezers, is provided with the external tooth line that the degree of depth and width are 0.1cm outside the extension, and the interval of adjacent external tooth line is 0.1 cm.
Furthermore, the ring opening part is composed of two semi-arcs, the width of the ring opening part is 0.4cm, the whole ring opening part is similar to an ellipse, when the tweezers are completely closed, the ring opening part forms an ellipse, under the natural opening state of the tweezers, the ring opening part forms a circle with the diameter of 2-3cm, the ring opening part can be used for clamping round objects such as bottle caps, test tubes and the like from the natural opening state to the closing state, in order to prevent the phenomena of slipping and half-way separation when clamping the objects, inner insections are arranged on the inner walls of the two semi-arcs and the inner wall of the opening part, the distance between the adjacent inner insections is 0.05-0.1cm, the arrangement can increase friction force and clamp the clamped objects, the opening part of the tweezers extends horizontally along the whole tweezers, the width and the thickness of the opening part are the same as those of the ring opening.
In the aseptic operation process of the biological safety cabinet, the tweezers can repeatedly clamp the sterile round rod-shaped articles and also need to be repeatedly subjected to flame burning for countless times to remove any biological organic matter and avoid pollution sources, and the forceps can be placed in the biological safety cabinet after flame burning sterilization and fixation, and the width of the middle part of the extension part of the tweezers is the largest, so that the tail part of the tweezers exceeds the weight of the opening part and the mouth part of the tweezers ring, the opening part and the mouth part of the tweezers ring cannot contact the cabinet surface, and the aseptic state is kept.
The utility model discloses the structure is though simple, but the practicality is stronger, and it is inconvenient to overcome the use that traditional tweezers exist, uses defects such as limited, and the facilitate promotion is used.
Claims (7)
1. The utility model provides a tweezers for biological safety cabinet aseptic technique, its characterized in that includes afterbody (1) and by afterbody towards same direction symmetry extension tweezers arm (2), circle oral area (3) and oral area (4), tweezers arm (2) comprise transition portion (21) and extension (22), the width and the thickness of transition portion (21) keep unanimous, extension (22) are the shape that middle width both ends are narrow, and its shrinkage is greater than the other end of extension (22) near extension (22) of circle oral area (3), circle oral area (3) comprise two half arcs, and all be provided with interior insection (31) on the inner wall of two half arcs's inner wall and oral area, the interval between adjacent interior insection (31) is 0.05-0.1 cm.
2. The forceps for aseptic manipulation of biological safety cabinets of claim 1, wherein the forceps have an overall length of 15-20cm, an overall width of 0.3-1.2cm, and a closed thickness of 0.3-0.5 cm.
3. Forceps for the sterile handling of biosafety cabinets according to claim 1, characterized in that the transition parts (21) have a gap of 0.1-0.2cm between them and a thickness of 0.1cm, and are naturally opened at an angle of 10-20 degrees and simultaneously extended by 2cm to connect with the extension parts (22).
4. Forceps for the sterile handling of biosafety cabinets according to claim 1, characterised in that the extension (22) represents a third of the entire forceps length, and is thickened to 0.2cm, with a maximum width of 1.2 cm.
5. Forceps for the sterile handling of biosafety cabinets according to claim 1, characterized in that the outside of the extension (22) is provided with external insections (23), the depth and width of the external insections (23) are both 0.1cm, and the interval between adjacent external insections (23) is 0.1 cm.
6. Forceps for the sterile handling of biosafety cabinets according to claim 1, characterized in that the width of the looping part (3) is 0.4cm, and in the natural open state of the forceps, the looping part (3) forms a circle with a diameter of 2-3 cm.
7. Forceps for the sterile handling of biosafety cabinets according to claim 1, characterized in that the mouth (4) extends horizontally along the whole forceps, has the same width and thickness as the looping part (3) and has a length of 1 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021081866.7U CN212702009U (en) | 2020-06-12 | 2020-06-12 | Tweezers for aseptic operation of biological safety cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021081866.7U CN212702009U (en) | 2020-06-12 | 2020-06-12 | Tweezers for aseptic operation of biological safety cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212702009U true CN212702009U (en) | 2021-03-16 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021081866.7U Active CN212702009U (en) | 2020-06-12 | 2020-06-12 | Tweezers for aseptic operation of biological safety cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212702009U (en) |
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2020
- 2020-06-12 CN CN202021081866.7U patent/CN212702009U/en active Active
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