CN203396593U - Contact biomaterial DNA (deoxyribonucleic acid) collection and storage device - Google Patents
Contact biomaterial DNA (deoxyribonucleic acid) collection and storage device Download PDFInfo
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- CN203396593U CN203396593U CN201320483098.1U CN201320483098U CN203396593U CN 203396593 U CN203396593 U CN 203396593U CN 201320483098 U CN201320483098 U CN 201320483098U CN 203396593 U CN203396593 U CN 203396593U
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- cotton swab
- cock body
- biological material
- drying agent
- pipe body
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Abstract
The utility model discloses a contact biomaterial DNA (deoxyribonucleic acid) collection and storage device which comprises a pipe body and an isolation grid in the pipe body. The device is characterized in that openings are formed in the two ends of the pipe body; a first plug body is matched with the opening in one end of the pipe body; one end, in the pipe body, of the first plug body is connected with a cotton swab through a detachable structure; the isolation grid is integrated with the pipe body; a second plug body is matched with the opening in the other end of the pipe body; a drying agent is arranged in the pipe body at the closed end of the second plug body. According to the device, a situation that a drying agent leaks and pollutes a cotton swab head cannot be caused, so that the secondary pollution cannot be caused to the cotton swab; the cotton swab is convenient to separate and a situation that a biomaterial is damped and decomposed in biomaterial storage and transfer processes due to failure of a drying agent is avoided.
Description
Technical field
The utility model relates to a kind of collection, save set of biomaterial, the particularly collection of contact biological material DNA, preservation.
Background technology
Along with the development of DNA gene sequencing technology, forensic DNA profiling technology has been widely used in scene of a crime investigation.In recent years, the national DNA of public security organ database establishment paces are constantly accelerated, and in fighting crime, protecting the work such as people life property safety, are bringing into play more and more important effect.China, since carrying out DNA analysis, has applied this technology and has successfully identified a large amount of difficult cases, in the detection of numerous criminal cases, brought into play vital role in the solution of civil case.
Along with DNA technique fight crime and solving criminal cases in widespread use, the continuous expansion of the extraction scope of scene of a crime biological evidence, improves constantly the requirement of check sensitivity, and requires definitely can not have a bit background contamination.In scene of a crime, for the major part contact biological material extracting cannot be directly in kind, conventionally with cotton swab, as carrier, extract transfer biological evidence, such as with cotton swab wiping or dip bloodstain; With cotton swab, contact cast-off cells class biological material is carried out to wiping transfer etc.Can say that cotton stick swab is for scene of a crime, to extract that biological material is used the most extensively, important tool easily.
Yet, in prior art, use in the process of extraction biological material of cotton swab, have following point: (1), in checkout procedure, need to partly be put into centrifuge tube by cotton swab head and detect, but existing cotton swab bar mostly is bamboo or plastics and makes, clip is inconvenient; And adopt cotton swab bar made of paper, during sampling, as exerted oneself more frangibility, it is not too convenient to use; (2) cotton swab using is ordinary packing, there is no the pre-service through the DNA that goes out, and cannot stop exogenous pollution completely; (3) cotton swab extracts after contact biological material DNA, directly puts into Material evidence bag preservation and carries, and easily causes coming off of adherent cell, causes the secondary loss of DNA amount, affects genotypic detecting; (4) sample, in the process of preserving, carrying, is subject to the impact of external environment, makes moist corrupt etc.These problems can not adapt with the raising of inspection technology sensitivity existing biological material collection, have affected the genotypic detection of DNA, sometimes also can affect cracking of criminal case.
For addressing the above problem, Chinese invention patent application CN103033391A discloses a kind of biological material collection and save set, include transparent casing and the thimble plug for sealing of an end opening, described thimble plug is provided with to the cotton swab extending in sleeve pipe, the bottom of described transparent casing is placed with the drying agent that can absorb fast moisture and can indicate humidity, is provided with for drying agent being fixed on to the grid of transparent casing bottom in transparent pipe.This device centralized procurement integrates, packing, preservation, functions/drying.But, still there is lower column defects in this device: a. drying agent utilizes grid spacing in pipe bottom, for realizing the placement of drying agent, grid and body are not integrated, easily in transportation because the reasons such as collision are moved, contact with cotton swab head, or cause desiccant leakage to position, cotton swab head place; If b. in preservation process, drying agent lost efficacy, be difficult to change drying agent, can directly cause whole failure of apparatus; The problem that c. cannot solve above-mentioned (1) point, cotton swab bar is difficult for clip or frangibility.
Therefore, need to provide new biological material DNA to gather save set.
Summary of the invention
Goal of the invention of the present utility model is to overcome the deficiencies in the prior art, provide a kind of contact biological material DNA to gather save set, when collection to biological material, preservation, functions/drying are provided, be more convenient for cotton swab head contamination-freely to put into pick-up unit, and be convenient to the replacing of drying agent.
To achieve the above object of the invention, the technical solution adopted in the utility model is: a kind of contact biological material DNA gathers save set, comprise a body and be arranged on the isolation grid in body, described body both ends open, coordinate and be provided with the first cock body with an end opening, on described the first cock body, be positioned at body Nei one end and be connected with cotton swab through removable structure; Described isolation grid and body are structure as a whole; Coordinate and be provided with the second cock body with other end opening, in one end body of described the second cock body sealing, be provided with drying agent.
Further technical scheme, described removable structure comprises that connecting link, one end of being fixedly connected on the first cock body are set in the sleeve pipe on connecting link, the other end of described sleeve pipe is set on cotton swab bar; The length of described sleeve pipe is not more than the length of described connecting link.
Preferred technical scheme, described connecting link is positioned at the central authorities of the first cock body, makes described cotton swab unsettled in body.
In technique scheme, the length of described cotton swab bar is not more than 1.5 centimetres.
Preferred technical scheme, has groove on one end that described sleeve pipe is connected with cotton swab bar, and cotton swab bar coordinates with sleeve interference.
Above-mentioned contact biological material DNA gathers the preparation method of save set, the cotton swab bar of described cotton swab is mounted on described the first cock body through removable structure, the first cock body and the second cock body are filled in respectively to the two ends of body and be tightly connected with body, collection save set is carried out to radiation treatment with co-60 radiation source, realize sterilization, sterilizing, DNA goes out.
Above-mentioned contact biological material DNA gathers the using method of save set, before sampling, drying agent state is checked, if drying agent lost efficacy, opens the second cock body, replacing drying agent, and jam-pack the second cock body again; Open the first cock body, with the cotton swab head wiping of humidification, treat sampling point; After wiping completes, then by the first cock body jam-pack on body, in this process, make cotton swab head keep vacant state; The bar code of filling in case, sample information is attached to the mouth of pipe, seals up for safekeeping; During check, open the first cock body, by removable structure, make cotton swab separated with the first cock body, enter verifying attachment.
In actual use, drying agent adopts water suction indicating desiccant, and for example, discolour silica gel, is blue before water suction, starts variable color after water suction, when pulverize is red, just no longer plays desiccation.According to the color of drying agent, can judge that whether it is still effective.
When described removable structure is connecting link and sleeve structure, during check, sleeve pipe is promoted to the first cock body direction, connecting link withstands cotton swab bar, makes cotton swab bar slip away and come off from sleeve pipe, realizes the separated of cotton swab and the first cock body.
For guaranteeing cotton swab head difficult drop-off, adopt high-quality absorbent cotton material, the parcel of high-quality absorbent cotton material is good, makes to gather more effective.
Because technique scheme is used, the utility model compared with prior art has following advantages:
1. in device of the present utility model, body both ends open, grid and body are one-body molded, thereby the situation that desiccant leakage is polluted cotton swab head can not occur;
2. owing to being provided with the second cock body, while changing drying agent, do not need to take out cotton swab, thereby can not cause secondary pollution to cotton swab;
3. in the utility model, be provided with removable structure and connect cotton swab head, thereby can use quarter butt cotton swab, during check, directly by removable structure, cotton swab head is separated with the first cock body, do not need to use scissors clip, not only handled easily but also avoided issuable pollution in use scissors process;
4. the conveniently replaced drying agent of the utility model, has avoided causing because drying agent loses efficacy the corrupt situation of making moist in biological material preservation and transfer process.
Accompanying drawing explanation
Fig. 1 is the structure cross-sectional schematic of the utility model embodiment;
Fig. 2 is the schematic diagram of removable structure in embodiment.
Wherein: 1, body; 2, the first cock body; 3, the second cock body; 4, removable structure; 5, isolation grid; 6, drying agent; 7, cotton swab; 8, sleeve pipe; 9, connecting link.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described:
Embodiment mono-: shown in Figure 1, a kind of contact biological material DNA gathers save set, comprise a body 1 and be arranged on the isolation grid 5 in body 1, described body 1 both ends open, coordinate with an end opening and be provided with the first cock body 2, on described the first cock body 2, be positioned at body Nei one end and be connected with cotton swab 7 through removable structure 4; Described isolation grid 5 is structure as a whole with body 1; Coordinate with other end opening and be provided with the second cock body 3, in one end body of described the second cock body 3 sealings, be provided with drying agent 6.
Referring to accompanying drawing 2, in the present embodiment, described removable structure comprises that connecting link 9, one end of being fixedly connected on the first cock body are set in the sleeve pipe 8 on connecting link 9, and the other end of described sleeve pipe 8 is set on cotton swab bar; The length of described sleeve pipe is not more than the length of described connecting link 9.Wherein, described connecting link 9 is positioned at the central authorities of the first cock body 2, makes described cotton swab 7 unsettled in body 1.
The length of cotton swab bar can not be oversize, to facilitate detection, again can not be too short, and must keep sleeve pipe to have certain holding force to cotton swab bar, generally to be not more than 1.5 centimetres, be advisable.
For assurance sleeve pipe, the existing certain holding force of cotton swab bar is convenient to again to the disengaging of cotton swab bar, on one end that described sleeve pipe is connected with cotton swab bar, is had groove, cotton swab bar coordinates with sleeve interference.
In actual use, drying agent adopts water suction indicating desiccant, and for example, discolour silica gel, is blue before water suction, starts variable color after water suction, when pulverize is red, just no longer plays desiccation.According to the color of drying agent, can judge that whether it is still effective.
Claims (5)
1. a contact biological material DNA gathers save set, comprise a body and be arranged on the isolation grid in body, it is characterized in that: described body both ends open, coordinate and be provided with the first cock body with an end opening, on described the first cock body, be positioned at body Nei one end and be connected with cotton swab through removable structure; Described isolation grid and body are structure as a whole; Coordinate and be provided with the second cock body with other end opening, in one end body of described the second cock body sealing, be provided with drying agent.
2. contact biological material DNA according to claim 1 gathers save set, it is characterized in that: described removable structure comprises that connecting link, one end of being fixedly connected on the first cock body are set in the sleeve pipe on connecting link, and the other end of described sleeve pipe is set on cotton swab bar; The length of described sleeve pipe is not more than the length of described connecting link.
3. contact biological material DNA according to claim 2 gathers save set, it is characterized in that: described connecting link is positioned at the central authorities of the first cock body, makes described cotton swab unsettled in body.
4. contact biological material DNA according to claim 2 gathers save set, it is characterized in that: the length of described cotton swab bar is not more than 1.5 centimetres.
5. contact biological material DNA according to claim 2 gathers save set, it is characterized in that: on one end that described sleeve pipe is connected with cotton swab bar, have groove, cotton swab bar coordinates with sleeve interference.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320483098.1U CN203396593U (en) | 2013-08-08 | 2013-08-08 | Contact biomaterial DNA (deoxyribonucleic acid) collection and storage device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320483098.1U CN203396593U (en) | 2013-08-08 | 2013-08-08 | Contact biomaterial DNA (deoxyribonucleic acid) collection and storage device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203396593U true CN203396593U (en) | 2014-01-15 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320483098.1U Withdrawn - After Issue CN203396593U (en) | 2013-08-08 | 2013-08-08 | Contact biomaterial DNA (deoxyribonucleic acid) collection and storage device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203396593U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389222A (en) * | 2013-08-08 | 2013-11-13 | 苏州麦格华恒贸易有限公司 | Contact biomaterial DNA gathering storage method and device |
| CN106190802A (en) * | 2016-07-17 | 2016-12-07 | 佛山市大臻医学检验所有限公司 | Sampling swab for oral cavity |
| CN108760373A (en) * | 2018-05-30 | 2018-11-06 | 天津达伟医疗科技有限公司 | A kind of surface wipes sampling pipe, method and purposes |
-
2013
- 2013-08-08 CN CN201320483098.1U patent/CN203396593U/en not_active Withdrawn - After Issue
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103389222A (en) * | 2013-08-08 | 2013-11-13 | 苏州麦格华恒贸易有限公司 | Contact biomaterial DNA gathering storage method and device |
| CN106190802A (en) * | 2016-07-17 | 2016-12-07 | 佛山市大臻医学检验所有限公司 | Sampling swab for oral cavity |
| CN108760373A (en) * | 2018-05-30 | 2018-11-06 | 天津达伟医疗科技有限公司 | A kind of surface wipes sampling pipe, method and purposes |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140115 Effective date of abandoning: 20160120 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |