CN203609454U

CN203609454U - One-time reciprocating type self-locking oral cavity cell acquisition and preservation device

Info

Publication number: CN203609454U
Application number: CN201320580396.2U
Authority: CN
Inventors: 邹建文
Original assignee: Individual
Current assignee: Individual
Priority date: 2013-09-21
Filing date: 2013-09-21
Publication date: 2014-05-28
Anticipated expiration: 2023-09-21

Abstract

The utility model discloses a one-time reciprocating type self-locking oral cavity cell acquisition and preservation device, which comprises a flat strip-shaped plastic sleeve. A channel, designed for accommodating a push rod and a spatula, is arranged in the sleeve. The front and rear ends, and the top of the sleeve are respectively provided with a window communicated with the channel. The push rod and the spatula are inserted in the channel. The front end of the push rod is fixedly provided with a piece of filter paper. The spatula is arranged below the push rod and the filter paper. One end of the spatula, far away from the filter paper, is provided with a self-locking mechanism. When the push rod is pushed forwards for the first time, the filter paper and the spatula below the filter paper can be pushed out along with the push rod. Then cells in the oral cavity can be acquired by means of the filter paper through holding the sleeve. After that, the push rod is pushed back and the spatula is self-locked in the plastic sleeve through slightly applying a force. The push rod is pushed forwards for a second time, and then the filter paper can be pushed out. The one-time reciprocating type self-locking oral cavity cell acquisition and preservation device provided by the utility model is simple to operate and testing materials are not easily polluted. The device can be used for punching and sampling mechanically or manually and enables the direct amplification of DNAs without the extraction process. Meanwhile, the establish efficiency of a DNA database is improved and the testing cost of DNAs is lowered.

Description

One once comes and goes self-locking oral cavity cell collection and save set

Technical field

This utility model relates to collection and the Techniques of preserving field of Stomatocyte, and particularly one once comes and goes self-locking oral cavity cell collection and save set.

Background technology

Taking oral cavity exfoliative cyte to carry out DNA check is a kind of non-intervention, no pain, AT method, simple to operate, without sterilization, and not transfused blood in the recent period by client or accept the impact of simplified marrow transplanting, more and more units utilization both at home and abroad is at present extracted and is had the personnel under detention of criminal record and suspect's oral cavity exfoliative cyte to carry out forensic dna check and set up DNA data base.Tradition gathers the common medical cotton stick of the many uses of buccal swab, is not suitable for adopting the method sampling of punching.The manual clip sampling of operator, the randomness of amount is larger, and in order not affect DNA detection analysis below, often needing to use has the paramagnetic particle method of sxemiquantitative extraction and purification to carry out DNA extraction to DNA, causes the cost of setting up DNA data base to remain high.

The oral cavity DNA harvester of just promoting in some units at present, first adopts sponge stick, harvester etc. to gather oral cavity exfoliative cyte, then transfers in a kind of filter paper card and preserves.By the sampling of being punched in the position that has oral cavity exfoliative cyte in filter paper card, then apply the direct amplification technique of DNA that developed recently gets up and directly carry out pcr amplification, improve the efficiency of forensic dna check.But the collection of DNA harvester oral cavity, this oral cavity exfoliative cyte separates with preservation, and step is more, complex operation, sample is easily contaminated.

In sum, at present Stomatocyte acquisition method or be not suitable for adopting the method sampling of punching, is difficult to realize the hands-free DNA of getting and directly increases; Or Stomatocyte collection separates with preservation, and step is more, complex operation, sample is easily contaminated.

Utility model content

This utility model patent technical problem to be solved be to provide a kind of simple, convenient machine or manual punching sampling, sample be difficult for contaminated, be applicable to that hands-free cut-off connects amplification once come and go self-locking oral cavity cell collection and save set.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is: a flat bar plastic sleeve, in sleeve, be provided with the passage that can hold push rod and spatula, the front end window A of passage releases flexibly for push rod and spatula, rear end window B is in order to release, top window C slides for push rod assembling and push button, in described passage, be inserted with push rod and spatula, front end at push rod is fixed with filter paper, push rod below is spatula, spatula is provided with a claw and self-fastening button away from filter paper end, and sleeve bottom is provided with respective barbs.

Preferably, in described flat bar sleeve, be provided with a passage that can hold push rod, spatula, be equipped with on front and back end and the top of sleeve the window connecting with described passage, called after front end window A respectively, rear end window B, top window C.

Preferably, in described passage, be inserted with a push rod and spatula, be fixed with filter paper at the front end of push rod.

Preferably, described filter paper is filter paper harmless on human-body safety, that do not affect the direct amplification of DNA.

Preferably, this utility model adopts and once comes and goes self-locking mechanism.That is: release for the first time push rod, the claw of push rod below guide pillar on spatula drives spatula and filter paper to release from window in the lump under holding; After sampling, push back push rod, exert oneself a little, spatula is just caught on by the barb on plastic sleeve, again promote push rod forward, just can only release filter paper, and spatula below it is certainly locked in plastic sleeve and is no longer pushed out, thereby facilitate machine or manual punching sampling, realize the standardization of sampling.

This utility model is with respect to prior art, there is following beneficial effect: this utility model once comes and goes self-locking oral cavity cell collection and save set and integrates Stomatocyte collection and hold function, simple to operation, sample is difficult for contaminated, machine or manual punching sampling are all very convenient, directly increase thereby easily realize the hands-free DNA of getting, improve the efficiency of DNA Database, reduce the cost of DNA check.

Accompanying drawing explanation

Figure 1A is the structural representation of facing that this utility model once comes and goes self-locking oral cavity cell collection and save set, and Figure 1B is the plan structure schematic diagram that this utility model once comes and goes self-locking oral cavity cell collection and save set.

Fig. 2 is sleeve, spatula, the push-rod assembly schematic perspective view that this utility model once comes and goes self-locking oral cavity cell collection and save set.

The specific embodiment

Below in conjunction with embodiment and accompanying drawing, this utility model is described in further detail, but the embodiment of utility model is not limited to this.

As shown in Figure 1A, Figure 1B, Fig. 2, one once comes and goes self-locking oral cavity cell collection and save set, a flat bar plastic sleeve 1, in sleeve 1, be provided with the passage that can hold push rod 2 and spatula 3, front and back end and top at sleeve are equipped with the window connecting with described passage, in described passage, be inserted with push rod 2 and spatula 3, be fixed with filter paper 4 at the front end of push rod 2.Promote for the first time push rod 2 forward, filter paper 4 and the spatula 3 below it are released in the lump, hold sleeve 1 and can gather Stomatocyte with filter paper 4, push back push rod 2, exert oneself a little, and spatula 3 is caught on by the barb 14 on plastic sleeve 1.Promote push rod 2 forward later, can only release filter paper 4, and spatula 3 below it is certainly locked in plastic sleeve 1 and is not pushed out, thereby facilitate machine or manual punching sampling, realize the standardization of sampling, directly increase thereby easily realize the hands-free DNA of getting, improve the efficiency of DNA Database, reduce the cost of DNA check.

Above-described embodiment is only preferred embodiment of the present utility model, is not used for limiting practical range of the present utility model.Be that all equalizations of doing according to this utility model content change and modify, all by this utility model claim scope required for protection is contained.

Claims

1. one kind once comes and goes self-locking oral cavity cell collection and save set, it is characterized in that: comprise a flat bar plastic sleeve (1), in sleeve, be provided with a passage that can hold push rod (2) and spatula (3), the front end window A (11) of passage releases flexibly for push rod (2) and spatula (3), rear end window B (13) is in order to release, top window C (12) slides for push rod (2) assembling and push button (21), in described passage, be inserted with push rod (2) and spatula (3), be fixed with filter paper (4) at the front end of push rod (2), push rod (2) below is spatula (3), spatula (3) is provided with a claw (31) and self-fastening button (32) away from filter paper end, sleeve bottom is provided with respective barbs (14).

2. self-locking oral cavity cell collection and the save set of once coming and going according to claim 1, it is characterized in that: in described flat bar sleeve (1), be provided with a passage that can hold push rod (2) and spatula (3), front and back end and top at sleeve (1) are equipped with the window connecting with described passage, called after front end window A (11), rear end window B (13), top window C (12) respectively.

3. self-locking oral cavity cell collection and the save set of once coming and going according to claim 1, is characterized in that: in described passage, be inserted with a push rod (2) and spatula (3), be fixed with filter paper (4) at the front end of push rod.

4. self-locking oral cavity cell collection and the save set of once coming and going according to claim 1, is characterized in that: described filter paper (4) is filter paper harmless on human-body safety, that do not affect the direct amplification of DNA.

5. self-locking oral cavity cell collection and the save set of once coming and going according to claim 1, it is characterized in that: while releasing for the first time push rod (2), under the claw (31) of push rod below guide pillar (22) on spatula (3) held, drive spatula (3) and filter paper (4) to release from window A (11) in the lump.

6. self-locking oral cavity cell collection and the save set of once coming and going according to claim 1, it is characterized in that: after sampling, push back push rod (2), exert oneself a little, spatula (3) is just caught on by the barb (14) on plastic sleeve (1), again promote push rod (2) forward, just can only release filter paper (4), and spatula below it is certainly locked in plastic sleeve and is no longer pushed out.