CN204417494U - Extraction device of fallen cells - Google Patents
Extraction device of fallen cells Download PDFInfo
- Publication number
- CN204417494U CN204417494U CN201520034105.9U CN201520034105U CN204417494U CN 204417494 U CN204417494 U CN 204417494U CN 201520034105 U CN201520034105 U CN 201520034105U CN 204417494 U CN204417494 U CN 204417494U
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- Prior art keywords
- handheld division
- extraction device
- extraction
- kink
- mark
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Abstract
The utility model provides a kind of extraction device of fallen cells.This extraction device of fallen cells comprises Handheld Division and extraction unit, and described extraction unit has substrate, and described substrate can be contained in centrifuge tube, is provided with glue-line at described substrate surface; Described Handheld Division is strip, and its one end is fixed on described base ends, described Handheld Division is provided be easy to make described extraction unit and described portion of the handle from pre-mark of break.This extraction device of fallen cells is applicable in site inspection the extraction of human body cast-off cells, amplification and detection; can not only effectively protect extraction material not contaminated; in addition can also reduce the acquisition probability mixing somatotype, operability is high, detects effective.
Description
Technical field
The utility model relates to a kind of biological evidence extraction element of police criminal detection field, particularly a kind of extraction device of fallen cells.
Background technology
At present, biological evidence extracts and in laboratory inspection process, follows the example of for suspecting that the extracting method of the biological material being attached with the skin histology cast-off cells shifted through contact mainly comprises vacuum suck method and glues at the scene.Wherein, it is comparatively large that vacuum suck method extracts area, and specific aim is poor, sometimes easily adsorbs other materials thus cause the decline of evidence quality, and relatively high to the state of the art requirement of operator, needs could be grasped by strict professional training; Sticky following the example of mainly carries out sticky evidence obtaining for the cast-off cells at scene, existing sticky device of getting mostly is and forms by with the roller of viscous substance and operation handle arm, it rolls to glue by roller and gets, and due to poor controllability when roller rolls, is therefore difficult to realize the extraction to privileged site; In addition, this is sticky get device reconnoitre at the scene in sticky get cast-off cells after, sensing chamber need be transferred to and detect, but easily cause sample contamination sticky getting in the transfer process of device, reduce the reliability of evidence.
Utility model content
The purpose of this utility model is to provide a kind of extraction device of fallen cells, for solve extraction element Detection results of the prior art poor, easily sample is polluted, the technological deficiency such as not easy to operate.
The utility model provides a kind of extraction device of fallen cells, comprises extraction unit and Handheld Division, and described extraction unit has substrate, and described substrate can be contained in centrifuge tube, is provided with glue-line at described substrate surface; Described Handheld Division is strip, and its one end is fixed on described base ends, described Handheld Division is provided be easy to make described extraction unit and described portion of the handle from pre-mark of break.
Further, described substrate is rectangular plate, and the length of described rectangular plate is 7 ~ 10mm, and width is 5 ~ 8mm, and thickness is 1 ~ 2mm.
In one embodiment, described Handheld Division is straight plate, and described straight plate is vertical with between described substrate to be arranged.
Further, the length of described straight plate is 4 ~ 12cm, and width is 4 ~ 8mm, and thickness is 2 ~ 4mm.
In another embodiment, described Handheld Division is the bending plate with a kink, and vertically between described bending plate with described substrate arranges.
Further, the width of described bending plate is 4 ~ 8mm, and thickness is 2 ~ 4mm, and the length of kink leading portion is 1 ~ 3cm, and the length of kink back segment is 3 ~ 9cm, and kink leading portion is 1:(2 ~ 4 with the length ratio of kink back segment).
Further, described kink towards or deviate from described glue-line and arrange, and the bending angle of described kink is 150 degree, 120 degree or 90 degree.
Further, described pre-mark of break is apart from described base ends 1 ~ 2mm.
Further, described pre-mark of break is arranged on the width of described Handheld Division, and the length of described pre-mark of break is equal with the width of described Handheld Division, and the degree of depth of described pre-mark of break is 1/3 ~ 1/2 of described Handheld Division thickness
Further, multiple openings that described pre-mark of break is disposed on described Handheld Division width by a row form.
The extraction device of fallen cells that the utility model provides extracts cast-off cells by arranging the extraction unit that can be contained in centrifuge tube, the extraction area of this extraction unit is relatively little, effectively can not only meet the extraction needs of cast-off cells, also overcome evidence obtaining scope excessive, the defect of evidence obtaining specific aim difference, after simultaneously having extracted cast-off cells in preliminry basic research at the scene, can by the pre-mark of break be arranged on Handheld Division easily make sticky get cast-off cells extraction unit and portion of the handle from, thus in the centrifuge tube that extraction unit can be made at the scene to be directly placed in for detecting, therefore effectively prevent the pollution in transfer process, improve and detect effect.
Accompanying drawing explanation
Fig. 1 is the front view of the extraction device of fallen cells of the utility model one embodiment;
Fig. 2 is the left view of the extraction device of fallen cells of another embodiment of the utility model, and its bend is 150 degree of angles;
Fig. 3 is the left view of the extraction device of fallen cells of another embodiment of the utility model, and its bend is 120 degree of angles;
Fig. 4 is the left view of the extraction device of fallen cells of another embodiment of the utility model, and its bend is an angle of 90 degrees;
Fig. 5 is the structural representation of the pre-mark of break of the extraction device of fallen cells of another embodiment of the utility model.
Description of reference numerals:
1: extraction unit 11: glue-line
12: substrate 2: Handheld Division
21: kink 3: pre-mark of break
Embodiment
For making the purpose of this utility model, technical scheme and advantage clearly, below in conjunction with the accompanying drawing in the utility model embodiment, technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Please refer to Fig. 1-Fig. 5, extraction device of fallen cells of the present utility model comprises extraction unit 1 and Handheld Division 2, and extraction unit 1 has substrate 12, and substrate 12 can be contained in centrifuge tube, is provided with glue-line 11 on substrate 12 surface; Handheld Division 2 is in strip, and its one end is fixed on substrate 12 end, and Handheld Division 2 is provided with the pre-mark of break 3 being easy to extraction unit 1 is separated with Handheld Division 2.
Extraction unit 1 is used for carrying out extraction evidence obtaining to cast-off cells, as long as the size of the substrate 12 of extraction unit 1 meets in the centrifuge tube that can be placed in for analyzing, centrifuge tube can be such as the EP pipe of 2mL, and the surface-area of substrate 12 can be 35 ~ 80mm
2, can be 40 ~ 60mm further
2, preferably 50mm
2left and right, this size effectively can not only meet the extraction needs of cast-off cells, can also avoid occurring mixing the not good situation of sampling, specific aim in sampling process.Substrate 12 is the carrier of glue-line 11, and glue-line 11 can be attached to the surface of substrate 12 by usual manner usually, such as, adhere to.Be understandable that, glue-line 11 has viscosity glue face, and this viscosity glue face deviates from substrate 12 and arranges; Viscosity glue face is used for gluing gets cast-off cells.In addition, can also arrange protective membrane (not shown) on the viscosity glue face of glue-line 11, it is for forming protection to glue-line 11, and can remove this protective membrane when needs extract cast-off cells and carry out sticky getting extraction.
Handheld Division 2 grips this extraction element for operator, can be designed to strip for the ease of gripping.Can adopt usual manner on Handheld Division 2, arrange pre-mark of break 3, this pre-mark of break 3 conveniently under the effect of external force can implement being separated of extraction unit 1 and Handheld Division 2, thus the extraction unit 1 after being separated directly is carried out collecting and depart from the contact with the external world.In actual use, in order to make extraction element of the present utility model more have toughness, polyethylene can be selected as material, and be that Handheld Division 2 can be one-body molded with extraction unit 1.
The utility model is by being set to the extraction unit 1 and the Handheld Division 2 that are easy to separation by extraction element, when after effectively extracting cast-off cells, because substrate 12 size of extraction unit 1 can be placed in the centrifuge tube carrying out analytic sample, after by pre-mark of break 3 sharp separation Handheld Division 2 and extraction unit 1, directly extraction unit 1 centrifuge tube be can be placed in, extraction unit 1 after sampling and extraneous too much contact be avoided and the pollution that causes.Meanwhile, this device is easy and simple to handle, and exploitativeness is high, can realize the extraction of sample fast.
The utility model does not do strict restriction to the shape of substrate 12, and in one embodiment, substrate 12 can be rectangular plate, and the length of rectangular plate can be 7 ~ 10mm, and width can be 5 ~ 8mm, and thickness can be 1 ~ 2mm.This size can not only make extraction unit 1 be easy to be placed in centrifuge tube, and in this size range when glue-line carries out sticky sampling, can either ensure the effective extraction to field sample, also can effectively avoid occurring intersecting the situation sampled.Wherein, the size of rectangular plate can be preferably long 7mm, wide 8mm, thick 1.5mm.
Further, Handheld Division 2 can be straight plate, vertically between straight plate with substrate 12 arranges.This set-up mode can be used for carrying out sample extraction to some rotine positionings, such as plane load sample object, operation simple and efficient.
The utility model does not do strict restriction to the size of this straight plate, and the length of straight plate can be such as 4 ~ 12cm, and width can be 4 ~ 8mm, and thickness can be 2 ~ 4mm.This size is not only convenient for carrying, and be also conducive to on-the-spot operation sampling, the gripping feel of operator is better in addition.Wherein, the size of straight plate can be preferably long 8cm, wide 6mm, thick 3mm.
Please refer to Fig. 2-Fig. 4, in other embodiments, Handheld Division 2 can also for having the bending plate of a kink 21, and vertically between bending plate with substrate 12 arrange.This set-up mode can be used for the sampling of unconventional position, in the process particularly sampled at the scene, often can run into the sample carrier that some have special angle, such as door handle, window gap etc., the bending plate with kink 21 can realize the sampling that these have the sample carrier of special angle preferably; Particularly, during by vertical with bending plate for substrate 12 setting, the engaging of kink 21 and carrier when sampling can be realized, thus realize the stability of sampling process.
The utility model does not do strict restriction to the size of this bending plate, the width of bending plate can be such as 4 ~ 8mm, thickness can be 2 ~ 4mm, the length of kink 21 leading portion can be 1 ~ 3cm, the length of kink back segment can be 3 ~ 9cm, and kink 21 leading portion can be 1:(2 ~ 4 with the length ratio of kink back segment).This size is convenient for carrying, and be conducive to on-the-spot operation sampling, the gripping feel of operator is better in addition, and can realize the stable gripping when sampling to twisted plate; It is 6mm that the size of bending plate can be preferably width, and thickness is 3mm, and before kink 21, segment length is 2cm, and after kink 21, segment length is 6cm.
In addition, kink 21 can towards or deviate from glue-line 11 and arrange, the bending angle of kink 21 can be arranged according to practical situation, and the bending angle of such as kink 21 can be 150 degree, 120 degree or 90 degree.Particularly, in the embodiment shown in Figure 2, kink 21 deviates from glue-line 11 and arranges, and the bending angle of kink 21 is 150 degree, and it can be used for carrying out sampling to the convex surface carrier with respective angles and collects; In the embodiment shown in Fig. 3 and Fig. 4, kink 21 is arranged towards glue-line 11, and the bending angle of kink 21 is respectively 120 degree and 90 degree, and it can be used for carrying out sampling to the concave surface carrier with respective angles and collects.In other embodiments, kink 21 towards and bending angle can select according to practical situation when sampling exploration at the scene.
Further, pre-mark of break 3 can apart from substrate 12 end 1 ~ 2mm.This setting had both been conducive to implementing to be separated to extraction unit 1 and Handheld Division 2, also avoid after implementing being separated of extraction unit 1 and Handheld Division 2 simultaneously, remained in Handheld Division in sampling portion 1 long and easily to pollute extracting sample.
In above-mentioned arbitrary extraction device of fallen cells, pre-mark of break 3 can be arranged on the width of Handheld Division 2, and the length of pre-mark of break 3 can be equal with the width of Handheld Division 2, and the degree of depth of pre-mark of break 3 can be 1/3 ~ 1/2 of Handheld Division 2 thickness.The structure of the utility model to pre-mark of break 3 does not do strict restriction, as long as it can avoid at cast-off cells leaching process Fracture, such as, and can realize being separated of Handheld Division 2 and extraction unit 1 when applying certain effect power to pre-mark of break, it can for being arranged on the otch on the width of Handheld Division 2.
In other embodiments, please refer to Fig. 5, pre-mark of break 3, can also arrange by one the multiple open pores being disposed on Handheld Division 2 width and form, the number of opening such as can be 4 ~ 6.The shape of this opening is not limit, and can be such as circle, rectangle etc., the degree of depth of this opening can be 1/3 ~ 1/2 of Handheld Division 2 thickness, and this opening also can be through at the thickness direction of Handheld Division 2 in addition.
Extraction device of fallen cells structure of the present utility model is simple, be easy to carry and operation.When using this extraction device of fallen cells, the glue-line 11 in extraction unit 1 is utilized to extract cast-off cells with the way of contact, after the extraction in pre-mark of break 3 place force to realize being separated of extraction unit 1 and Handheld Division 2 fast, direct at the scene extraction unit can be moved in centrifuge tube, thus avoid issuable pollution in extraction element transfer process; And substrate 11 size is less, which obviates the situations such as the crossed contamination that may occur in leaching process, improve and detect effect and this device.Test of many times proves, extraction device of fallen cells of the present utility model is adopted not only to have good operability to the cast-off cells carrier of various angle, and intersection sampling, the probability polluted decline greatly, significantly improve the detection rate of crime, extraction effect is desirable, extraction efficiency is high, production cost is low and operating cost is low, has broad application prospects.
Last it is noted that above each embodiment is only in order to illustrate the technical solution of the utility model, be not intended to limit; Although be described in detail the utility model with reference to foregoing embodiments, those of ordinary skill in the art is to be understood that: it still can be modified to the technical scheme described in foregoing embodiments, or carries out equivalent replacement to wherein some or all of technical characteristic; And these amendments or replacement, do not make the essence of appropriate technical solution depart from the scope of each embodiment technical scheme of the utility model.
Claims (10)
1. an extraction device of fallen cells, is characterized in that, comprises extraction unit and Handheld Division,
Described extraction unit has substrate, and described substrate can be contained in centrifuge tube, is provided with glue-line at described substrate surface;
Described Handheld Division is strip, and its one end is fixed on described base ends, described Handheld Division is provided be easy to make described extraction unit and described portion of the handle from pre-mark of break.
2. extraction device of fallen cells according to claim 1, is characterized in that, described substrate is rectangular plate, and the length of described rectangular plate is 7 ~ 10mm, and width is 5 ~ 8mm, and thickness is 1 ~ 2mm.
3. extraction device of fallen cells according to claim 1, is characterized in that, described Handheld Division is straight plate, and described straight plate is vertical with between described substrate to be arranged.
4. extraction device of fallen cells according to claim 3, is characterized in that, the length of described straight plate is 4 ~ 12cm, and width is 4 ~ 8mm, and thickness is 2 ~ 4mm.
5. extraction device of fallen cells according to claim 1, is characterized in that, described Handheld Division is the bending plate with a kink, and vertically between described bending plate with described substrate arranges.
6. extraction device of fallen cells according to claim 5, it is characterized in that, the width of described bending plate is 4 ~ 8mm, thickness is 2 ~ 4mm, the length of kink leading portion is 1 ~ 3cm, the length of kink back segment is 3 ~ 9cm, and kink leading portion is 1:(2 ~ 4 with the length ratio of kink back segment).
7. extraction device of fallen cells according to claim 5, is characterized in that, described kink towards or deviate from described glue-line and arrange, and the bending angle of described kink is 150 degree, 120 degree or 90 degree.
8., according to the arbitrary described extraction device of fallen cells of claim 1 to 7, it is characterized in that, described pre-mark of break is apart from described base ends 1 ~ 2mm.
9. according to the arbitrary described extraction device of fallen cells of claim 1 to 7, it is characterized in that, described pre-mark of break is arranged on the width of described Handheld Division, and the length of described pre-mark of break is equal with the width of described Handheld Division, the degree of depth of described pre-mark of break is 1/3 ~ 1/2 of described Handheld Division thickness.
10. according to the arbitrary described extraction device of fallen cells of claim 1 to 7, it is characterized in that, multiple openings that described pre-mark of break is disposed on described Handheld Division width by a row form.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520034105.9U CN204417494U (en) | 2015-01-19 | 2015-01-19 | Extraction device of fallen cells |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520034105.9U CN204417494U (en) | 2015-01-19 | 2015-01-19 | Extraction device of fallen cells |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204417494U true CN204417494U (en) | 2015-06-24 |
Family
ID=53467881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520034105.9U Expired - Fee Related CN204417494U (en) | 2015-01-19 | 2015-01-19 | Extraction device of fallen cells |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204417494U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106550938A (en) * | 2015-09-30 | 2017-04-05 | 中创云牧(内蒙古)科技咨询有限公司 | It is a kind of to freeze smart extractor |
| 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 |
-
2015
- 2015-01-19 CN CN201520034105.9U patent/CN204417494U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106550938A (en) * | 2015-09-30 | 2017-04-05 | 中创云牧(内蒙古)科技咨询有限公司 | It is a kind of to freeze smart extractor |
| CN106550938B (en) * | 2015-09-30 | 2020-04-10 | 中创云牧(内蒙古)科技咨询有限公司 | Frozen semen extractor |
| 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20190119 |