CN220193064U - Biological material evidence draws push rod cotton swab and save set thereof - Google Patents
Biological material evidence draws push rod cotton swab and save set thereof Download PDFInfo
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- CN220193064U CN220193064U CN202321512967.9U CN202321512967U CN220193064U CN 220193064 U CN220193064 U CN 220193064U CN 202321512967 U CN202321512967 U CN 202321512967U CN 220193064 U CN220193064 U CN 220193064U
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- cotton swab
- push rod
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- rod
- biological material
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- 229920000742 Cotton Polymers 0.000 title claims abstract description 380
- 239000012620 biological material Substances 0.000 title claims abstract description 66
- 238000000605 extraction Methods 0.000 claims abstract description 72
- 239000007788 liquid Substances 0.000 claims abstract description 49
- 238000004321 preservation Methods 0.000 claims abstract description 29
- 238000007789 sealing Methods 0.000 claims description 25
- 239000000565 sealant Substances 0.000 claims description 15
- 229960000074 biopharmaceutical Drugs 0.000 claims description 7
- 238000004140 cleaning Methods 0.000 claims description 3
- 239000012528 membrane Substances 0.000 claims 1
- 238000012864 cross contamination Methods 0.000 abstract description 13
- 239000000463 material Substances 0.000 abstract description 9
- 238000001514 detection method Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000007400 DNA extraction Methods 0.000 description 4
- 208000011580 syndromic disease Diseases 0.000 description 4
- 230000009286 beneficial effect Effects 0.000 description 3
- 238000007689 inspection Methods 0.000 description 3
- 238000005070 sampling Methods 0.000 description 3
- 239000007921 spray Substances 0.000 description 3
- 230000005489 elastic deformation Effects 0.000 description 2
- 238000012545 processing Methods 0.000 description 2
- 238000009736 wetting Methods 0.000 description 2
- 230000015556 catabolic process Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006731 degradation reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 238000012360 testing method Methods 0.000 description 1
- 239000012498 ultrapure water Substances 0.000 description 1
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- Investigating Or Analysing Biological Materials (AREA)
- Sampling And Sample Adjustment (AREA)
Abstract
The utility model provides a dry wiping biological evidence extraction push rod cotton swab, wiping liquid is not encapsulated in the cotton swab, left and right fastening lantern rings are vertically arranged, are arranged along the front and rear directions and are arranged at intervals left and right, the left fastening lantern ring is positioned between the right end of a cotton swab rod and the left end of a cotton swab sleeve and sleeved on the right end of the cotton swab rod and abuts against the left end of the cotton swab sleeve, the right fastening lantern ring is positioned in the left end of the cotton swab sleeve and connected with the cotton swab sleeve, sleeved on the right end of the cotton swab rod and abuts against the cotton swab rod, and an arc-shaped elastic push rod is positioned in the cotton swab sleeve and abuts against the inner wall of the cotton swab sleeve. Also provides a wet wiping biological evidence extraction push rod cotton swab, and wiping liquid is encapsulated in the cotton swab. Also provides a biological material evidence extraction push rod cotton swab preservation device. The cotton swab of the push rod for extracting the dry wiping and wet wiping biological material evidence has stable structure, the cotton swab head and the push rod are not easy to fall off, the pollution or loss of collected samples is avoided, the cotton swab of the push rod for extracting the wet wiping biological material evidence also ensures complete collection of the detection materials, and the risk of cross contamination of the collected samples on site caused by public use of wiping liquid bottles is avoided.
Description
Technical Field
The utility model relates to the technical field of biological material evidence collection, in particular to the technical field of biological material evidence extraction cotton swabs, and specifically relates to a biological material evidence extraction push rod cotton swab and a storage device thereof.
Background
In the fields of public security and judicial, biological material evidence collection cotton swabs are generally divided into three types, wherein the first type is a non-pliable cotton swab, in the process of extracting a detection material, the cotton swabs are required to be peeled by scissors, cotton wool is easy to fly, and cross contamination among samples is easy to cause when the scissors are commonly used; the second is a foldable cotton swab, most of which are a foldable plastic rod and a paper rod, the cotton swab still needs to be broken by the resistance of a centrifuge tube or scissors, the length of the broken rod cannot be controlled, and the normal closing of the centrifuge tube is influenced by the overlong cotton swab rod; and the third is a common push rod cotton swab which is broken by external force.
Common ordinary push rod cotton swab utilizes cotton swab sleeve pipe diameter slightly to be greater than the cotton swab pole, and the cotton swab head can insert the cotton swab intraductal through the cotton swab pole, and the push rod is inserted the cotton swab intraductal, promotes the cotton swab pole through the push rod when required and pushes away the cotton swab sleeve pipe with the cotton swab head, in order to avoid the too big influence of frictional force between push rod and the cotton swab sleeve pipe to push out the cotton swab head, thereby the push rod diameter need be less than the cotton swab sleeve pipe diameter, leads to there is not fastening effect between cotton swab head and the cotton swab sleeve pipe, between cotton swab sleeve pipe and the push rod, in use or transportation, cotton swab head and push rod all drop easily, very easily causes collection sample pollution or loss.
In addition, in the field investigation, the collection of the biological evidence is often performed by wiping a swab by a dry-wet two-step method (a suspected part of the detection material is wiped after one swab is wetted with water or wiping liquid, and then the water mark of the suspected part is wiped clean by the other dry swab). In the process, a drop bottle or a spray wetting cotton swab is generally used, and most of the biological evidence collecting cotton swabs in the market at present are only provided with one drop bottle or spray bottle, so that the drop bottle or spray bottle is generally required to be reused, and the risk of cross contamination of samples collected on site among different cases exists. Meanwhile, high-purity water is generally adopted as wiping liquid, the dripping amount of the wiping liquid cannot be controlled, and if the water amount is too small, the biological evidence at the suspected part of the detection material is difficult to collect completely; excessive water content accelerates the degradation speed of cell DNA in the biological evidence, increases the difficulty of DNA extraction in the later stage, and even leads to the condition that the DNA cannot be detected. In addition, the collected sample (i.e., the collected cotton swab) is sent to a technical laboratory for testing. Each case site can collect a plurality of samples for inspection, and if the inspection cotton swabs cannot be effectively protected and distinguished during inspection, cross contamination among the samples is easy to cause trouble to case analysis.
Therefore, it is desirable to provide a cotton swab with a stable structure, which is not easy to fall off both the cotton swab head and the push rod, so as to avoid the pollution or loss of collected samples, and the cotton swab is preferably provided with wiping liquid, ensure the complete collection of materials, avoid the risk of cross-contamination of the collected samples on site caused by the public use of a wiping liquid bottle, and further preferably further provided with a storage device, so that the collected cotton swab can be distinguished and stored, and the cross-contamination between the collected samples is avoided.
Disclosure of Invention
In order to overcome the defects in the prior art, the utility model aims to provide the cotton swab with the push rod for extracting the biological evidence by dry wiping, which has a stable structure, is not easy to fall off both the cotton swab head and the push rod, avoids the pollution or loss of collected samples, and is suitable for large-scale popularization and application.
The utility model further aims to provide the wet-wiping biological evidence extraction push rod cotton swab, which is stable in structure, not only is the cotton swab head and the push rod not easy to fall off, and can avoid pollution or loss of collected samples, but also the wiping liquid is provided, so that complete collection of the materials is ensured, and the risk of cross pollution of the collected samples on site caused by public use of the wiping liquid bottle is avoided, and the wet-wiping biological evidence extraction push rod cotton swab is suitable for large-scale popularization and application.
The utility model further aims to provide a biological material evidence extraction push rod cotton swab storage device which can distinguish and store collected cotton swabs, avoids cross contamination among collected samples and is suitable for large-scale popularization and application.
In order to achieve the above object, in a first aspect of the present utility model, there is provided a dry-erase biological material evidence extraction push rod cotton swab, including a cotton swab head, a cotton swab sleeve and a push rod, the cotton swab head including a cotton swab rod and a cotton swab head, the cotton swab rod, the cotton swab sleeve and the push rod being disposed along a left-right direction, the cotton swab head being wrapped on a left end of the cotton swab rod, a right end of the cotton swab rod being inserted in a left end of the cotton swab sleeve along the left-right direction, the push rod being inserted in the cotton swab sleeve along the left-right direction and being located on a right side of the right end of the cotton swab rod, the right end of the push rod being exposed to the right side of the cotton swab sleeve, the dry-erase biological material evidence extraction push rod cotton swab further including a left fastening collar and a right fastening collar, wherein:
the cotton swab is characterized in that the left fastening lantern ring and the right fastening lantern ring are vertically arranged and are arranged in the front-back direction and are arranged at intervals left and right, the left fastening lantern ring is positioned between the right end of the cotton swab rod and the left end of the cotton swab sleeve and sleeved on the right end of the cotton swab rod and abuts against the left end of the cotton swab sleeve, the right fastening lantern ring is positioned in the left end of the cotton swab sleeve and is connected with the left end of the cotton swab sleeve, the right fastening lantern ring is sleeved on the right end of the cotton swab rod and abuts against the right end of the cotton swab rod, the push rod is an arc-shaped elastic push rod, and the arc-shaped elastic push rod is positioned in the cotton swab sleeve and abuts against the inner wall of the cotton swab sleeve.
Preferably, the cotton swab rod is provided with a through hole along the left-right direction, and the diameter of the push rod is larger than that of the through hole.
More preferably, the left end of the push rod is a tip, and the tip is arranged towards the left.
Still further, the tip is a tapered tip.
Preferably, the left end of the push rod is a tip, and the tip is arranged towards the left.
More preferably, the tip is a tapered tip.
In a second aspect of the present utility model, there is provided a wet-wiping biological material evidence extraction push rod cotton swab, comprising a cotton swab head, a cotton swab sleeve and a push rod, wherein the cotton swab head comprises a cotton swab rod and a cotton swab head, the cotton swab rod, the cotton swab sleeve and the push rod are all arranged along a left-right direction, the cotton swab head is wrapped on the left end of the cotton swab rod, the right end of the cotton swab rod is inserted in the left end of the cotton swab sleeve along the left-right direction, the push rod is inserted in the cotton swab sleeve along the left-right direction and is positioned on the right side of the right end of the cotton swab rod, and the right end of the push rod is exposed to the right side of the cotton swab sleeve, the wet-wiping biological material evidence extraction push rod cotton swab is characterized by further comprising a left fastening collar, a right fastening collar, a liquid sealant, a sealing film and a wiping liquid, wherein:
the left fastening lantern ring and the right fastening lantern ring are vertically arranged and are arranged along the front-back direction and are arranged at intervals left and right, the left fastening lantern ring is positioned between the right end of the cotton swab rod and the left end of the cotton swab sleeve and sleeved on the right end of the cotton swab rod and abuts against the left end of the cotton swab sleeve, the right fastening lantern ring is positioned in the left end of the cotton swab sleeve and is connected with the left end of the cotton swab sleeve, the right fastening lantern ring is sleeved on the right end of the cotton swab rod and abuts against the right end of the cotton swab rod, and the push rod is an arc-shaped elastic push rod which is positioned in the cotton swab sleeve and abuts against the inner wall of the cotton swab sleeve;
the cotton swab rod is provided with a through hole along the left-right direction, the wet biological material evidence extraction push rod cotton swab is internally packaged with wiping liquid, the liquid sealant and the sealing film are respectively used for sealing the left end and the right end of the through hole, so that a sealing cavity is formed between the liquid sealant, the through hole and the sealing film, the wiping liquid is sealed in the sealing cavity, the left end of the push rod is a tip, the tip is arranged towards the left, and the diameter of the push rod is larger than that of the through hole.
Preferably, the tip is a tapered tip.
In a third aspect of the present utility model, there is provided a device for preserving a biological material evidence extraction push rod cotton swab, which is characterized by comprising a preserving box body, a preserving box cover, a front cotton swab sleeve fixing piece and a rear cotton swab sleeve fixing piece, wherein:
the cotton swab comprises a storage box body, a storage box cover, a cotton swab sleeve and a dry-wiping biological material evidence extraction push rod cotton swab sleeve, and is characterized in that the storage box body and the storage box cover are horizontally arranged and are arranged along the left-right direction, the storage box cover is located on the storage box body, the rear side of the storage box cover is rotatably connected with the rear side of the storage box body around the left-right direction, the front side of the storage box cover is detachably connected with the front side of the storage box body, the top surface of the storage box body is vertically provided with a storage groove, and the front cotton swab sleeve fixing piece and the rear cotton swab sleeve fixing piece are arranged at intervals and are arranged on the bottom surface of the storage groove and used for respectively detachably fixing the wet-wiping biological material evidence extraction push rod cotton swab on the bottom surface of the storage groove.
Preferably, the front cotton swab sleeve fixing piece comprises a left front fixing clamping block and a right front fixing clamping block, the left front fixing clamping block and the right front fixing clamping block are vertically arranged and are arranged along the front-rear direction at intervals, the left front fixing clamping block and the right front fixing clamping block are arranged on the bottom surface of the preservation groove, a left front clamping groove and a right front clamping groove are respectively formed in the top of the left front fixing clamping block and the top of the right front fixing clamping block along the left-right direction, and the left front clamping groove and the right front clamping groove are respectively used for clamping the cotton swab sleeve of the wet wiping biological evidence extraction push rod cotton swab in the left front clamping groove and the right front clamping groove;
the cotton swab sleeve fixing piece comprises a left rear fixing clamping block and a right rear fixing clamping block, wherein the left rear fixing clamping block and the right rear fixing clamping block are vertically arranged and are arranged along the front and rear directions at intervals, the left rear fixing clamping block and the right rear fixing clamping block are arranged on the bottom surface of the preservation groove, the top of the left rear fixing clamping block and the top of the right rear fixing clamping block are respectively provided with a left rear clamping groove and a right rear clamping groove along the left and right directions, and the left rear clamping groove and the right rear clamping groove are respectively used for clamping the cotton swab sleeve with the push rod cotton swab extracted by the dry-wiping biological material evidence.
The beneficial effects of the utility model are mainly as follows:
1. the left fastening sleeve ring and the right fastening sleeve ring of the cotton swab of the dry wiping biological material evidence extraction push rod are vertically arranged and are arranged along the front-back direction and are arranged at intervals left and right, the left fastening sleeve ring is positioned between the right end of the cotton swab rod and the left end of the cotton swab sleeve and sleeved on the right end of the cotton swab rod and abuts against the left end of the cotton swab sleeve, the right fastening sleeve ring is positioned in the left end of the cotton swab sleeve and is connected with the left end of the cotton swab sleeve, the right fastening sleeve ring is sleeved on the right end of the cotton swab rod and abuts against the right end of the cotton swab rod, the push rod is an arc-shaped elastic push rod, and the arc-shaped elastic push rod is positioned in the cotton swab sleeve and abuts against the inner wall of the cotton swab sleeve.
2. The wet wiping biological material evidence extraction push rod cotton swab further comprises a liquid sealant, a sealing film and wiping liquid, wherein the cotton swab rod is provided with a through hole along the left-right direction, the wiping liquid is encapsulated in the wet wiping biological material evidence extraction push rod cotton swab, the left end and the right end of the through hole are respectively sealed by the liquid sealant and the sealing film so as to form a sealing cavity between the liquid sealant, the through hole and the sealing film, the wiping liquid is sealed in the sealing cavity, the left end of the push rod is a tip, the tip is arranged towards the left, and the diameter of the push rod is larger than that of the through hole.
3. The device for storing the biological material evidence extraction push rod cotton swab comprises a storage box body, a storage box cover, a front cotton swab sleeve fixing piece and a rear cotton swab sleeve fixing piece, wherein the storage box body and the storage box cover are horizontally arranged and are arranged along the left-right direction, the storage box cover is positioned on the storage box body, the rear side of the storage box cover is rotatably connected with the rear side of the storage box body around the left-right direction, the front side of the storage box cover is detachably connected with the front side of the storage box body, the top surface of the storage box body is vertically provided with a storage groove, the front cotton swab sleeve fixing piece and the rear cotton swab sleeve fixing piece are arranged at intervals from front to back and are arranged on the bottom surface of the storage groove and are used for detachably fixing the cotton swab sleeve of the wet biological material evidence extraction push rod cotton swab and the cotton swab sleeve of the dry biological material evidence extraction push rod cotton swab respectively.
These and other objects, features and advantages of the present utility model will be more fully apparent from the following detailed description and drawings, and may be learned by the practice of the utility model by the means, apparatus and combinations thereof as set forth hereinafter.
Drawings
Fig. 1 is a schematic top perspective view of an embodiment of a dry erase biological material evidence extraction pusher bar swab of the present utility model.
Fig. 2 is a schematic top view of the pushrod of the embodiment shown in fig. 1.
Fig. 3 is a schematic top perspective view of one embodiment of a wet wipe biological material evidence extraction pusher bar swab of the present utility model.
Fig. 4 is a schematic top perspective view of an embodiment of a biological material evidence extraction push rod cotton swab preservation device according to the present utility model, in which the embodiment shown in fig. 1 and the embodiment shown in fig. 3 are placed, and the preservation box cover is in an open state.
(symbol description)
1, dry-wiping a biological material evidence to extract a push rod cotton swab; 2 cotton swab heads; 3, a cotton swab sleeve; 4, pushing a rod; 5 left fastening collar; 6, right fastening collar; 7, a cotton swab rod; 8 cotton heads; 9 tip; 10 wet wiping biological evidence to extract a push rod cotton swab; 11 wiping liquid; 12 biological material evidence extraction push rod cotton swab storage device; 13, storing the box body; 14, storing the box cover; 15 front cotton swab sleeve fixing pieces; 16 rear cotton swab sleeve fixing pieces; 17 a storage groove; 18, fixing a clamping block at the left front; 19, fixing a clamping block at the right front; 20 left front clamping grooves; 21 a right front clamping groove; the clamping block is fixed at the left rear part 22; the clamping block is fixed at the right rear part; 24 left rear clamping grooves; a 25 right rear clamping groove; 26 are snapped in.
Detailed Description
In order to make the technical contents of the present utility model more clearly understood, the following examples are specifically described.
In the description of the present utility model, it should be understood that the terms "upper," "lower," "front," "rear," "left," "right," "top," "bottom," "inner," "outer," and the like indicate or are based on the orientation or positional relationship shown in the drawings, merely to facilitate description of the present utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model.
Referring to fig. 1 to 2, in a specific embodiment of a dry-erase biological material evidence extraction push rod cotton swab 1 of the present utility model, the dry-erase biological material evidence extraction push rod cotton swab 1 of the present utility model includes a cotton swab head 2, a cotton swab sleeve 3, a push rod 4, a left fastening collar 5 and a right fastening collar 6, wherein:
the cotton swab head 2 comprises a cotton swab rod 7 and a cotton swab head 8, the cotton swab rod 7, the cotton swab sleeve 3 and the push rod 4 are all arranged along the left-right direction, the cotton swab head 8 is wrapped on the left end of the cotton swab rod 7, the right end of the cotton swab rod 7 is inserted into the left end of the cotton swab sleeve 3 along the left-right direction, the push rod 4 is inserted into the cotton swab sleeve 3 along the left-right direction and is positioned on the right side of the right end of the cotton swab rod 7, and the right end of the push rod 4 is exposed out of the right end of the cotton swab sleeve 3 towards the right;
the cotton swab is characterized in that the left fastening lantern ring 5 and the right fastening lantern ring 6 are vertically arranged and are arranged along the front-back direction and are arranged at intervals left and right, the left fastening lantern ring 5 is positioned between the right end of the cotton swab rod 7 and the left end of the cotton swab sleeve 3 and sleeved on the right end of the cotton swab rod 7 and abuts against the left end of the cotton swab sleeve 3, the right fastening lantern ring 6 is positioned in the left end of the cotton swab sleeve 3 and is connected with the left end of the cotton swab sleeve 3, the right fastening lantern ring 6 is sleeved on the right end of the cotton swab rod 7 and abuts against the right end of the cotton swab rod 7, the push rod 4 is an arc-shaped elastic push rod, the arc-shaped elastic push rod is positioned in the cotton swab sleeve 3 and abuts against the inner wall of the cotton swab sleeve 3, and wiping liquid 11 (shown in fig. 3) is not packaged in the cotton swab 1 for extracting a dry-wiping biological evidence.
The arc-shaped elastic push rod of the dry-wiping biological material evidence extraction push rod cotton swab 1 can generate certain elastic deformation, and the arc-shaped elastic push rod is extruded by the inner wall of the cotton swab sleeve 3 in the cotton swab sleeve 3 to generate certain elastic deformation, so that the arc-shaped elastic push rod abuts against the inner wall of the cotton swab sleeve 3, and the friction force between the surfaces of the arc-shaped elastic push rod and the cotton swab sleeve ensures that the arc-shaped elastic push rod cannot move in the cotton swab sleeve 3 at will under the action of non-external force.
The cotton swab rod 7 may be a solid rod or a hollow rod, and in a specific embodiment of the present utility model, a through hole (not shown) is provided in the left-right direction of the cotton swab rod 7, that is, the cotton swab rod 7 is a hollow rod, and the diameter of the push rod 4 is greater than the diameter of the through hole. By adopting the above arrangement, even if the cotton swab rod 7 is provided with a through hole along the left-right direction, after the push rod 4 is pushed towards the cotton swab head 2, the left end of the push rod 4 can still abut against the right end of the cotton swab rod 7, and is not inserted into the through hole, so that the cotton swab rod 7 is pushed out of the cotton swab sleeve 3.
The left end of the push rod 4 may be the tip 9 or may not be the tip 9, as shown in fig. 1-2, and in an embodiment of the present utility model, the left end of the push rod 4 is the tip 9, and the tip 9 is disposed towards the left.
The tip 9 may have any suitable shape and in a specific embodiment of the utility model the tip 9 is a conical tip.
The cotton swab 1 is not packaged with the wiping liquid 11, and can be directly used for dry wiping, when the cotton swab is used, the cotton swab head 2 is arranged downwards, the wet-wiped water mark at the suspected part of the detection material is wiped clean through the cotton swab head 8, after sampling is finished, when the cotton swab head 2 is required to be pushed out, the push rod 4 is pushed towards the cotton swab head 2, the left end of the push rod 4 abuts against the right end of the cotton swab rod 7, the push rod 4 is pushed continuously, the friction force between the left fastening sleeve ring 5 and the left end of the cotton swab sleeve 3 and the friction force between the right fastening sleeve ring 6 and the right end of the cotton swab rod 7 can be overcome, the cotton swab head 2 is pushed out from the left end of the cotton swab sleeve 3, the cotton swab head 2 can be directly placed into a DNA extraction device, external force is not required to be broken or sheared off, and the processing work of the cotton swab head 2 after the biological evidence is collected and before DNA extraction is greatly reduced.
Referring to fig. 3, in an embodiment of the wet wipe bio-evidence extraction push-rod cotton swab of the present utility model, unlike the embodiment of the dry wipe bio-evidence extraction push-rod cotton swab of fig. 1-2, the wet wipe bio-evidence extraction push-rod cotton swab 10 of the present utility model further includes a liquid sealant (not shown), a sealing film (not shown) and a wiping liquid 11, the wiping liquid 11 is encapsulated in the wet wipe bio-evidence extraction push-rod cotton swab 10, and the liquid sealant and the sealing film seal the left and right ends of the through hole, respectively, to form a sealing cavity between the liquid sealant, the through hole and the sealing film, and the wiping liquid 11 is sealed in the sealing cavity. Under the condition that the sealing film is not broken, the liquid sealant and the wiping liquid on the left side cannot flow out from the left end of the through hole under the action of atmospheric pressure and liquid surface tension. Preferably, the location of the liquid sealant on the left side can be any suitable location within the through hole as is practical.
The wet wiping biological material evidence extraction push rod cotton swab 10 is internally packaged with wiping liquid 11, can be directly used for wet wiping, when in use, the wet wiping biological material evidence extraction push rod cotton swab 10 is generally used in an inclined way, the cotton swab head 2 is arranged below, the push rod 4 is pushed towards the cotton swab head 2 under the condition of slight external force, so that the left end of the push rod 4 pierces a sealing film until the left end of the push rod 4 abuts against the right end of the cotton swab rod 7, but the cotton swab rod 7 is not pushed, after the sealing film pierces, liquid sealant and wiping liquid 11 on the left side flows into the cotton swab head 8 from the left end of a through hole by utilizing the action of air pressure and gravity to achieve the purpose of wetting the cotton swab head 8, then the suspected portion of material is examined in accessible cotton head 8 cleaning carries out the sample collection, after the sampling finishes, when needs push out cotton head 2, increase external force and continue to promote push rod 4, can overcome the frictional force between the left end of left fastening lantern ring 5 and cotton swab sleeve 3 and the frictional force between the right end of right fastening lantern ring 6 and cotton swab pole 7, promote cotton head 2 from cotton swab sleeve 3's left end, cotton head 2 can directly place in the DNA extraction device, need not to break or cut with the help of external force, it is simple and convenient to use, greatly reduced after the biological evidence is gathered, the processing work to cotton head 2 before the DNA is drawed.
Referring to fig. 4, in a specific embodiment of the biological material evidence extraction push rod cotton swab storage device of the present utility model, the biological material evidence extraction push rod cotton swab storage device 12 of the present utility model includes a storage box 13, a storage box cover 14, a front cotton swab sleeve fixing element 15 and a rear cotton swab sleeve fixing element 16, wherein:
the utility model discloses a wet wipe biological material evidence extraction push rod cotton swab, including preserving box body 13, preserving box lid 14, preserving box lid 13, preserving box lid 14 all level sets up and all sets up along the left and right directions, preserving box lid 14's rear side is around left and right directions rotatable connection preserving box body 13's rear side, preserving box lid 14's front side can be dismantled and connect preserving box body 13's front side, preserving box body 13's top surface is vertical to be provided with preserving groove 17, preceding cotton swab sleeve mounting 15 with back cotton swab sleeve mounting 16 mutual interval sets up and all sets up on preserving groove 17's the bottom surface is used for respectively detachable fixed above-mentioned wet wipe biological material evidence extraction push rod cotton swab 10's cotton swab sleeve 3 and the aforesaid dry wipe biological material evidence extraction push rod cotton swab 1's cotton swab sleeve 3.
In a specific embodiment of the biological evidence extraction push rod cotton swab storage device according to the present utility model, as shown in fig. 4, the front cotton swab casing fixing element 15 and the rear cotton swab casing fixing element 16 may comprise any suitable structure, wherein the front cotton swab casing fixing element 15 comprises a front left fixing block 18 and a front right fixing block 19, the front left fixing block 18 and the front right fixing block 19 are vertically arranged along the front-rear direction and are arranged at a left-right interval, the front left fixing block 18 and the front right fixing block 19 are arranged on the bottom surface of the storage groove 17, a front left clamping groove 20 and a front right clamping groove 21 are respectively arranged at the top of the front left fixing block 18 and the top of the front right fixing block 19 along the left-right direction, and the front left clamping groove 20 and the front right clamping groove 21 are used for clamping the cotton swab casing 3 of the wet biological evidence extraction push rod 10 therein;
the rear cotton swab sleeve fixing piece 16 comprises a left rear fixing clamping block 22 and a right rear fixing clamping block 23, the left rear fixing clamping block 22 and the right rear fixing clamping block 23 are vertically arranged and are arranged in a left-right spaced mode along the front-rear direction, the left rear fixing clamping block 22 and the right rear fixing clamping block 23 are arranged on the bottom surface of the storage groove 17, the top of the left rear fixing clamping block 22 and the top of the right rear fixing clamping block 23 are respectively provided with a left rear clamping groove 24 and a right rear clamping groove 25 along the left-right direction, and the left rear clamping groove 24 and the right rear clamping groove 25 are respectively used for clamping the cotton swab sleeve 3 of the dry wiping biological material evidence extraction push rod cotton swab 1.
With the above arrangement, the cotton swab sleeves 3 of the wet wiping biological material evidence extraction push rod cotton swabs 10 are respectively clamped in the left front clamping groove 20 and the right front clamping groove 21, and the cotton swab sleeves 3 of the dry wiping biological material evidence extraction push rod cotton swabs 1 are respectively clamped in the left rear clamping groove 24 and the right rear clamping groove 25.
The left front card slot 20, the right front card slot 21, the left rear card slot 24 and the right rear card slot 25 may have any suitable shape, and in a specific embodiment of the biological material evidence extraction push rod cotton swab storage device of the present utility model, the left front card slot 20, the right front card slot 21, the left rear card slot 24 and the right rear card slot 25 are all semicircular arc-shaped card slots, that is, the cross section of the left front card slot 20, the cross section of the right front card slot 21, the cross section of the left rear card slot 24 and the cross section of the right rear card slot 25 are all semicircular arcs.
In a specific embodiment of the biopharmaceutical extraction pusher cotton swab storage device of the present utility model, as shown in fig. 4, the biopharmaceutical extraction pusher cotton swab storage device 12 further includes a buckle 26 and a clamping position (not shown in the figure), wherein the buckle 26 is located under the front side of the storage box cover 14 and is connected to the front side of the storage box cover 14, and the clamping position is disposed on the front side of the storage box body 13, and the buckle 26 is clamped with the clamping position.
When the cotton swab box is used, the front side of the preservation box cover 14 and the front side of the preservation box body 13 are detached, under the condition that the buckles 26 and the clamping positions exist, the front side of the preservation box cover 14 is lifted upwards, the buckles 26 are separated from the clamping positions, the rear side of the preservation box cover 14 is rotated backwards around the left and right directions relative to the rear side of the preservation box body 13, the preservation box cover 14 is turned backwards to be in the shape shown in fig. 4, the cotton swab sleeve 3 of the wet biological syndrome extraction push rod cotton swab 10 and the cotton swab sleeve 3 of the dry biological syndrome extraction push rod cotton swab 1 are respectively and detachably fixed on the front cotton swab sleeve fixing piece 15 and the rear cotton swab sleeve fixing piece 16, then the rear side of the preservation box cover 14 is rotated forwards around the left and right directions relative to the rear side of the preservation box body 13, the front side of the preservation box cover 14 and the front side of the preservation box body 13 are detachably connected, and the buckles 26 are clamped with the clamping positions, and accordingly the wet biological syndrome extraction push rod cotton swab 10 and the cotton swab 1 are prevented from being mutually suspended in the assembly process of the wet biological syndrome extraction push rod cotton swab 1.
Compared with the prior art, the utility model has the following beneficial effects:
1. the cotton swab head, the cotton swab sleeve and the push rod of the biological material evidence extraction push rod cotton swab are mutually matched and stable in structure, and the phenomenon that the push rod cotton swab moves randomly under the condition of no external force to cause loss or cross contamination of collected samples can be effectively avoided.
2. The cotton swab taking mode after the biological material evidence is adopted to extract the push rod cotton swab and sample is push rod type, external force such as scissors is not needed to break, the length of the cotton swab rod is not needed to be controlled, the cotton swab head can be directly subjected to subsequent treatment after being pushed out, the process is simple, the use of public consumables such as scissors is omitted, the cost is saved, and cross contamination is avoided.
3. The cotton swab head of the wet wiping biological evidence extraction push rod cotton swab is internally packaged with wiping liquid, so that the cotton swab head can be wetted after being pierced by the push rod, and auxiliary tools such as a dropping bottle or a watering can are not required to be additionally arranged.
4. The biological material evidence extraction push rod cotton swab can be used in combination with the biological material evidence extraction push rod cotton swab storage device, so that the sampled wet cotton swab and the sampled dry cotton swab are suspended, the internal cotton swab is protected, and pollution and loss of the biological material evidence are avoided.
Therefore, the utility model ensures that the biological material evidence collecting push rod cotton swab has stable structure, avoids random falling in the using and transporting processes, and the wet wiping biological material evidence extracting push rod cotton swab is also packaged with wiping liquid, ensures that the collection of the detection materials is complete, avoids the risk of cross contamination of the on-site collected samples caused by the public use of a wiping liquid bottle, and can be matched with a cotton swab storage device to distinguish and store the biological material evidence collected in different areas, thereby avoiding cross contamination and loss. The utility model has simple structure, convenient operation, safety and reliability, is suitable for on-site sampling, and is beneficial to practical popularization.
In conclusion, the dry wiping and wet wiping biological material evidence extraction push rod cotton swab is stable in structure, the cotton swab head and the push rod are not easy to fall off, sample collection pollution or loss is avoided, the wet wiping biological material evidence extraction push rod cotton swab is further provided with wiping liquid, complete sample collection is ensured, the risk of on-site sample collection cross contamination caused by public wiping liquid bottles is avoided, the biological material evidence extraction push rod cotton swab storage device can distinguish and store the collected cotton swabs, cross contamination among collected samples is avoided, and the device is suitable for large-scale popularization and application.
It will thus be seen that the objects of the present utility model have been fully and effectively attained. The functional and structural principles of the present utility model have been shown and described in the examples and embodiments may be modified at will without departing from such principles. Therefore, this utility model includes all modifications encompassed within the spirit of the following claims and the scope of the following claims.
Claims (10)
1. The utility model provides a biological material evidence draws push rod cotton swab, includes cotton swab head, cotton swab sleeve pipe and push rod, cotton swab head includes cotton swab pole and cotton swab head, cotton swab pole the cotton swab sleeve pipe with the push rod is all along controlling the direction setting, cotton swab head parcel is in on the left end of cotton swab pole, the right-hand member of cotton swab pole is followed controlling the direction and is inserted and establish in the left end of cotton swab sheathed tube, the push rod is followed controlling the direction and inserting and establish in the cotton swab sleeve pipe and be located the right of the right-hand member of cotton swab pole, the right-hand member of push rod exposes towards right the right-hand member of cotton swab sleeve pipe, its characterized in that, biological material evidence draws push rod cotton swab still includes left fastening collar and right fastening collar, wherein:
the cotton swab is characterized in that the left fastening lantern ring and the right fastening lantern ring are vertically arranged and are arranged in the front-back direction and are arranged at intervals left and right, the left fastening lantern ring is positioned between the right end of the cotton swab rod and the left end of the cotton swab sleeve and sleeved on the right end of the cotton swab rod and abuts against the left end of the cotton swab sleeve, the right fastening lantern ring is positioned in the left end of the cotton swab sleeve and is connected with the left end of the cotton swab sleeve, the right fastening lantern ring is sleeved on the right end of the cotton swab rod and abuts against the right end of the cotton swab rod, the push rod is an arc-shaped elastic push rod, and the arc-shaped elastic push rod is positioned in the cotton swab sleeve and abuts against the inner wall of the cotton swab sleeve.
2. The biological material evidence extraction push rod cotton swab as in claim 1, wherein the cotton swab rod is provided with a through hole along the left-right direction, and the diameter of the push rod is larger than that of the through hole.
3. The biopharmaceutical extraction push rod cotton swab of claim 2, wherein the left end of the push rod is pointed and the pointed end is disposed to the left.
4. The biopharmaceutical extraction push rod cotton swab of claim 3, wherein the tip is a tapered tip.
5. The biopharmaceutical extraction push rod cotton swab of claim 1, wherein the left end of the push rod is pointed and the pointed end is disposed to the left.
6. The biopharmaceutical extraction push rod cotton swab of claim 5, wherein the tip is a tapered tip.
7. The utility model provides a biological material evidence draws push rod cotton swab, includes cotton swab head, cotton swab sleeve pipe and push rod, cotton swab head includes cotton swab pole and cotton swab head, cotton swab pole the cotton swab sleeve pipe with the push rod is all along controlling the direction setting, cotton swab head parcel is in on the left end of cotton swab pole, the right-hand member of cotton swab pole is followed controlling the direction and is inserted and establish in the left end of cotton swab sleeve pipe, the push rod is followed controlling the direction and is inserted and establish in the cotton swab sleeve pipe and be located the right of the right-hand member of cotton swab pole, the right-hand member of push rod exposes towards right of cotton swab sleeve pipe, its characterized in that, biological material evidence draws push rod cotton swab still includes left fastening collar, right fastening collar, liquid sealant, sealing membrane and wiping liquid, wherein:
the left fastening lantern ring and the right fastening lantern ring are vertically arranged and are arranged along the front-back direction and are arranged at intervals left and right, the left fastening lantern ring is positioned between the right end of the cotton swab rod and the left end of the cotton swab sleeve and sleeved on the right end of the cotton swab rod and abuts against the left end of the cotton swab sleeve, the right fastening lantern ring is positioned in the left end of the cotton swab sleeve and is connected with the left end of the cotton swab sleeve, the right fastening lantern ring is sleeved on the right end of the cotton swab rod and abuts against the right end of the cotton swab rod, and the push rod is an arc-shaped elastic push rod which is positioned in the cotton swab sleeve and abuts against the inner wall of the cotton swab sleeve;
the cotton swab rod is provided with a through hole along the left-right direction, the cleaning liquid is packaged in the cotton swab of the biological evidence extraction push rod, the liquid sealant and the sealing film are respectively used for sealing the left end and the right end of the through hole, so that a sealing cavity is formed between the liquid sealant, the through hole and the sealing film, the cleaning liquid is sealed in the sealing cavity, the left end of the push rod is a tip, the tip is arranged towards the left, and the diameter of the push rod is larger than that of the through hole.
8. The biopharmaceutical extraction push rod cotton swab of claim 7, wherein the tip is a tapered tip.
9. The utility model provides a biological material evidence draws push rod cotton swab save set, its characterized in that, including preserving the box body, preserve lid, preceding cotton swab sleeve pipe mounting and back cotton swab sleeve pipe mounting, wherein:
the preservation box body and the preservation box cover are all horizontally arranged and all set up along the left-right direction, the preservation box cover is located on the preservation box body, the rear side of the preservation box cover is rotatably connected with the rear side of the preservation box body around the left-right direction, the front side of the preservation box cover is detachably connected with the front side of the preservation box body, the top surface of the preservation box body is vertically provided with a preservation groove, and the front cotton swab sleeve fixing piece and the rear cotton swab sleeve fixing piece are arranged at intervals and are all arranged on the bottom surface of the preservation groove and are used for detachably fixing the cotton swab sleeve of the biological material evidence extraction push rod cotton swab according to any one of claims 7-8 and the cotton swab sleeve of the biological material evidence extraction push rod cotton swab according to any one of claims 1-6 respectively.
10. The biological material evidence extraction push rod cotton swab preservation device according to claim 9, wherein the front cotton swab sleeve fixing piece comprises a left front fixing clamping block and a right front fixing clamping block, the left front fixing clamping block and the right front fixing clamping block are vertically arranged and are arranged along the front-back direction at intervals left and right, the left front fixing clamping block and the right front fixing clamping block are arranged on the bottom surface of the preservation groove, a left front clamping groove and a right front clamping groove are respectively arranged at the top of the left front fixing clamping block and the top of the right front fixing clamping block along the left-right direction, and the left front clamping groove and the right front clamping groove are used for clamping the cotton swab sleeve of the biological material evidence extraction push rod cotton swab in the cotton swab sleeve according to any one of claims 7-8;
the cotton swab sleeve fixing piece comprises a left rear fixing clamping block and a right rear fixing clamping block, wherein the left rear fixing clamping block and the right rear fixing clamping block are vertically arranged and are arranged along the front and rear directions at intervals, the left rear fixing clamping block and the right rear fixing clamping block are arranged on the bottom surface of the preservation groove, the top of the left rear fixing clamping block and the top of the right rear fixing clamping block are respectively provided with a left rear clamping groove and a right rear clamping groove along the left and right directions, and the left rear clamping grooves and the right rear clamping grooves are all used for clamping the cotton swab sleeve with the biological material evidence extraction push rod cotton swab according to any one of claims 1-6.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321512967.9U CN220193064U (en) | 2023-06-14 | 2023-06-14 | Biological material evidence draws push rod cotton swab and save set thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321512967.9U CN220193064U (en) | 2023-06-14 | 2023-06-14 | Biological material evidence draws push rod cotton swab and save set thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220193064U true CN220193064U (en) | 2023-12-19 |
Family
ID=89148850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321512967.9U Active CN220193064U (en) | 2023-06-14 | 2023-06-14 | Biological material evidence draws push rod cotton swab and save set thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220193064U (en) |
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2023
- 2023-06-14 CN CN202321512967.9U patent/CN220193064U/en active Active
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