CN201459139U - Extraction device of fallen cells - Google Patents
Extraction device of fallen cells Download PDFInfo
- Publication number
- CN201459139U CN201459139U CN2009201097992U CN200920109799U CN201459139U CN 201459139 U CN201459139 U CN 201459139U CN 2009201097992 U CN2009201097992 U CN 2009201097992U CN 200920109799 U CN200920109799 U CN 200920109799U CN 201459139 U CN201459139 U CN 201459139U
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- cells
- cast
- bottle
- colloid
- extraction element
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Abstract
The utility model relates to an extraction device of fallen cells, which comprises a bottle body, a bottle cover and colloid, wherein the bottle cover is covered on the bottle body and forms a sealed storage space; and the colloid is arranged on the bottle cover and positioned in the sealed space. The extraction device utilizes an adhesive tape adhesion and extraction technology to contact with the fallen-like cells, has simple operation, convenient carrying, easy enrichment of the fallen cells and no influence on follow-up laboratory inspection, can effectively avoid cross contamination during the extraction process of on-the-spot material evidence, not only is convenient for use of grassroots crime scene investigation when in extraction, but also is suitable for being used when DNA extraction is carried out in a laboratory, can adhere, enrich and contact with the fallen-like cells from various carrier surfaces, and is anti-pollution and easy to store.
Description
Technical field
The utility model relates to a kind of biological material evidence extraction element, particularly a kind of cast-off cells extraction element.
Background technology
At present, in biological at the scene material evidence extraction and the laboratory inspection process, the extracting method that is attached with the biological material of contact class cast-off cells for suspection mainly comprises direct clip method, two step wipe method and vacuum suck methods.Wherein, directly the clip method is fit to the dry goods carrier, but is subject to the influence of inhibitions such as dyestuff in the carrier matrix sometimes, and causes STR check failure; Two steps were caused dilution of sample easily when wipe method is extracted, preserve, cause easily again in the censorship process the coming off of cell of enrichment on the swab, or caused dna degradation because of humidity; It is bigger that the vacuum suck method is extracted area, is easy to generate sometimes to mix the STR collection of illustrative plates, and causes the decline of evidence quality.Therefore the above-mentioned means of prior art exist that effect is undesirable, efficient is lower and technological deficiency such as easy pollution.In addition, two step wipe method are relative higher to the technical level of operators requirement with the vacuum suck method, need could grasp by strict professional training.
The utility model content
The purpose of this utility model provides a kind of cast-off cells extraction element, effectively solves that existing biological material evidence extracts that the means effect is undesirable, efficient is lower and technological deficiency such as easy pollution.
To achieve these goals, the utility model provides a kind of cast-off cells extraction element, comprise bottle, bottle cap and colloid, described bottle cap be located on the bottle and forms airtight shelf space, and described colloid is arranged on the described bottle cap and is positioned at described enclosed space.
Described bottle is the cylindrical shell with circular cross section, and an end of described cylindrical shell is a blind end, and the other end is an opening end.
Described bottle cap is the step-like cylindrical shell with circular cross section, comprise outer end, coupling end and the inner of connecting successively, the external diameter of described outer end is greater than the external diameter of coupling end, the external diameter of described coupling end is greater than the external diameter of the inner, and the external diameter of described coupling end equals the internal diameter of described bottle, the end face of described the inner is provided with end plate, and the end face of described outer end is provided with dowel.Further, the side surface of described outer end is provided with anti-skidding striped.The side surface of described coupling end is provided with several annular protrusions.
On the technique scheme basis, described colloid is circular double-sided adhesive.Further, described circular double-sided adhesive comprises circular colloid and operating portion, and described operating station is in circular colloidal one side.
The utility model proposes a kind of cast-off cells extraction element, utilize adhesive tape to adhere to extractive technique (tape-lifting) and extract contact class cast-off cells, have simple to operate, easy to carry, be easy to the enrichment cast-off cells, subsequent experimental chamber check do not had influence, can effectively avoid the advantages such as crossed contamination that cause in the evidence at the scene leaching process, use when not only making things convenient for basic unit's site inspection to extract, and use when carrying out DNA extraction in suitable laboratory, can stickingly from variety carrier surface get, enrichment contact class cast-off cells, anti-pollution, easily preserve.The utility model cast-off cells extraction element is as a kind of easy on-the-spot cast-off cells extraction element, in the extraction of contact class DNA sample, its special advantages is arranged, be that direct clip method, two step wipe method and the useful of vacuum suck method of generally using are at present replenished, extraction effect ideal, extraction efficiency height, production cost and operating cost are low, are with a wide range of applications.
Description of drawings
Fig. 1 is the structural representation of the utility model cast-off cells extraction element;
Fig. 2 is the structural representation of bottle in the utility model cast-off cells extraction element;
Fig. 3 is the vertical view of Fig. 2 structure;
Fig. 4 is the structural representation of bottle cap in the utility model cast-off cells extraction element;
Fig. 5 is the vertical view of Fig. 4 structure;
Fig. 6 is a colloidal structural representation in the utility model cast-off cells extraction element.
Description of reference numerals:
The 1-bottle; The 2-bottle cap; The 3-colloid;
The 21-outer end; The 22-coupling end; 23-the inner;
The 24-end plate; The 25-dowel; The anti-skidding striped of 26-;
The 27-annular protrusion; The circular colloid of 31-; The 32-operating portion.
Embodiment
Below by drawings and Examples, the technical solution of the utility model is described in further detail.
Fig. 1 is the structural representation of the utility model cast-off cells extraction element.As shown in Figure 1, the agent structure of the utility model cast-off cells extraction element comprises bottle 1, bottle cap 2 and colloid 3, wherein colloid 3 is used for extracting contact class cast-off cells, bottle cap 2 be located on the bottle 1, make bottle 1 and bottle cap 2 form airtight shelf space together, prevent that extract is contaminated on preservation and censorship link.Particularly, bottle 1 is the cylindrical shell of end sealing, and bottle cap 2 be located in bottle 1, and colloid 3 is arranged on the end of bottle cap 2, and is positioned at the enclosed space of bottle 1.
Fig. 2 is the structural representation of bottle in the utility model cast-off cells extraction element, and Fig. 3 is the vertical view of Fig. 2 structure.As shown in Figures 2 and 3, the utility model bottle 1 is for having the cylindrical shell of circular cross section, and an end of cylindrical shell is a blind end, and the other end is an opening end.In actual the use, bottle 1 can adopt the polythene material goods, highly is 40mm, and external diameter is 25mm, and internal diameter is 23mm.
Fig. 4 is the structural representation of bottle cap in the utility model cast-off cells extraction element, and Fig. 5 is the vertical view of Fig. 4 structure.As shown in Figure 4 and Figure 5, the utility model bottle cap 2 is for having the step-like cylindrical shell of circular cross section, comprise the outer end 21, the coupling end 22 and inner 23 that connect successively, wherein the external diameter of outer end 21 is greater than the external diameter of coupling end 22, the external diameter of coupling end 22 is greater than the external diameter of the inner 23, and the external diameter of coupling end 22 equals the internal diameter of bottle, and inner 23 end face is provided with end plate 24, and the end face of outer end 21 is provided with dowel 25.In actual the use, bottle cap 2 can adopt the polythene material goods of thickness 1mm, and the height of outer end 21 is 12mm, and the height of coupling end 22 is 10mm, and the total height of bottle cap 2 is 28mm.Further, the side surface of outer end 21 can be provided with anti-skidding striped 26, so that the operator grips bottle cap reliably.The side surface of coupling end 22 can be provided with several annular protrusions 27, by extruding annular protrusion 27 bottle cap 2 is located on the bottle 1 more securely in the use.
Fig. 6 is a colloidal structural representation in the utility model cast-off cells extraction element. as shown in Figure 6; the utility model colloid 3 is circular double-sided adhesive; comprise circular colloid 31 and operating portion 32; wherein operating portion 32 is positioned at a side of circular colloid 31; be used for aborning with the colloid 3 sticking protective membranes that are posted on the end plate 24 of bottle cap 2 and the colloid 3 of in use tearing. because the utility model colloid is a double-sided adhesive; therefore the protective membrane of colloid one side aborning needs to tear earlier; and the glue face by this side makes, and colloid is sticking to be posted on the end plate of bottle cap; the protective membrane of colloid opposite side keeps; tear again when waiting to need to extract contact class cast-off cells. in actual the use; circular colloidal diameter can be 12mm, and operating portion is that rectangle or end are semicircular class rectangle.
When needs extract biological material evidence, at first bottle cap is taken off, and the protective membrane on the colloid of tearing, adopt the way of contact of glue face to extract cast-off cells, afterwards bottle cap is located on the bottle, make and extract the enclosed space that the colloid that cast-off cells are arranged is positioned at bottle.This shows, the utility model cast-off cells extraction element utilizes adhesive tape to adhere to extractive technique (tape-lifting) and extracts contact class cast-off cells, have simple to operate, easy to carry, be easy to the enrichment cast-off cells, subsequent experimental chamber check do not had influence, can effectively avoid the advantages such as crossed contamination that cause in the evidence at the scene leaching process, use when not only making things convenient for basic unit's site inspection to extract, and use when carrying out DNA extraction in suitable laboratory, can stickingly from variety carrier surface get, enrichment contact class cast-off cells, anti-pollution, easily preserve.Test of many times shows, when adopting the utility model cast-off cells extraction element to extract the different carriers sample, the extraction of contact class sample that occurs for the scene such as clothes, face shield, cap, gloves, rope, wallet, mobile phone, door handle etc., can both obtain good dna typing, extraction has very high susceptibility.The utility model cast-off cells extraction element is as a kind of easy on-the-spot cast-off cells extraction element, in the extraction of contact class DNA sample, its special advantages is arranged, be that direct clip method, two step wipe method and the useful of vacuum suck method of generally using are at present replenished, extraction effect ideal, extraction efficiency height, production cost and operating cost are low, have broad application prospects.
It should be noted that at last: above embodiment is only unrestricted in order to the explanation the technical solution of the utility model, although the utility model is had been described in detail with reference to preferred embodiment, those of ordinary skill in the art is to be understood that, can make amendment or be equal to replacement the technical solution of the utility model, and not break away from the spirit and scope of technical solutions of the utility model.
Claims (7)
1. a cast-off cells extraction element is characterized in that, comprises bottle, bottle cap and colloid, and described bottle cap be located on the bottle and forms airtight shelf space, and described colloid is arranged on the described bottle cap and is positioned at described enclosed space.
2. cast-off cells extraction element according to claim 1 is characterized in that, described bottle is the cylindrical shell with circular cross section, and an end of described cylindrical shell is a blind end, and the other end is an opening end.
3. cast-off cells extraction element according to claim 2, it is characterized in that, described bottle cap is the step-like cylindrical shell with circular cross section, comprise outer end, coupling end and the inner of connecting successively, the external diameter of described outer end is greater than the external diameter of coupling end, and the external diameter of described coupling end is greater than the external diameter of the inner, and the external diameter of described coupling end equals the internal diameter of described bottle, the end face of described the inner is provided with end plate, and the end face of described outer end is provided with dowel.
4. cast-off cells extraction element according to claim 3 is characterized in that the side surface of described outer end is provided with anti-skidding striped.
5. cast-off cells extraction element according to claim 3 is characterized in that the side surface of described coupling end is provided with several annular protrusions.
6. according to the described cast-off cells extraction element of arbitrary claim in the claim 1～5, it is characterized in that described colloid is circular double-sided adhesive.
7. cast-off cells extraction element according to claim 6 is characterized in that, described circular double-sided adhesive comprises circular colloid and operating portion, and described operating station is in circular colloidal one side.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201097992U CN201459139U (en) | 2009-07-03 | 2009-07-03 | Extraction device of fallen cells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201097992U CN201459139U (en) | 2009-07-03 | 2009-07-03 | Extraction device of fallen cells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201459139U true CN201459139U (en) | 2010-05-12 |
Family
ID=42386493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009201097992U Expired - Fee Related CN201459139U (en) | 2009-07-03 | 2009-07-03 | Extraction device of fallen cells |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201459139U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102604822A (en) * | 2012-03-09 | 2012-07-25 | 谭国清 | Exfoliated cell sampler and exfoliated cell sampling method |
| EP3023486A1 (en) * | 2013-07-17 | 2016-05-25 | L'oreal | Biomolecule extraction device and biomolecule extraction method |
| CN106367325B (en) * | 2016-09-08 | 2018-10-12 | 张庆霞 | Exfoliated cell extractor and the extracting method for utilizing its extraction cast-off cells |
-
2009
- 2009-07-03 CN CN2009201097992U patent/CN201459139U/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102604822A (en) * | 2012-03-09 | 2012-07-25 | 谭国清 | Exfoliated cell sampler and exfoliated cell sampling method |
| CN102604822B (en) * | 2012-03-09 | 2013-09-11 | 谭国清 | Exfoliated cell sampler and exfoliated cell sampling method |
| EP3023486A1 (en) * | 2013-07-17 | 2016-05-25 | L'oreal | Biomolecule extraction device and biomolecule extraction method |
| CN105829520A (en) * | 2013-07-17 | 2016-08-03 | 欧莱雅集团 | Biomolecule extraction device and biomolecule extraction method |
| EP3023486A4 (en) * | 2013-07-17 | 2017-03-29 | L'oreal | Biomolecule extraction device and biomolecule extraction method |
| CN105829520B (en) * | 2013-07-17 | 2019-12-24 | 欧莱雅集团 | Biomolecule extraction device and biomolecule extraction method |
| US10520404B2 (en) | 2013-07-17 | 2019-12-31 | L'oreal | Biomolecule extraction device and biomolecule extraction method |
| CN106367325B (en) * | 2016-09-08 | 2018-10-12 | 张庆霞 | Exfoliated cell extractor and the extracting method for utilizing its extraction cast-off cells |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100512 Termination date: 20110703 |