Trace DNA extracting capsule
A capsule and trace technology, applied in the field of DNA extraction, can solve problems such as pollution and test result errors, achieve simple and convenient operation, and improve test accuracy
Pending Publication Date: 2019-10-25
奥然科技生物(深圳)有限责任公司
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Problems solved by technology
However, this type of extraction device may cause pollution during transportation and use, resulting in errors in inspection results
Method used
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Embodiment 1
[0042] A trace DNA extraction capsule, its structure is as follows figure 1 , figure 2 , Figure 4 , Figure 5 As shown, it includes an inner tube 2, an outer tube 3 and a top cover 1. The inner tube 2 is arranged on the upper part of the outer tube 3 in a piston-type sliding manner, and the top cover 1 is detachably covered on the top of the inner tube 2. There is an internal thread, a heat-sealing film 15 is arranged on the upper edge of the internal thread, a top cover sealing ring 19 is provided between the heat-sealing film 15 and the top cover 1, and a housing chamber is provided in the middle of the top cover 1, and a reaction reagent is placed in the housing chamber Chamber 14, a T-shaped push rod 11 is slidably arranged on the upper part of the containing chamber, a detachable push rod support sleeve 12 is arranged between the push rod 11 and the top of the top cover 1, and a solid reaction reagent 143 is installed in the reaction reagent chamber 14, and the reacti...
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The invention relates to a trace DNA extracting capsule. The extracting capsule comprises an inner tube, an outer tube and a top cover; the inner tube is slidably arranged at the upper portion of theouter tube in a piston way, the top cover separably covers the top of the inner tube, an accommodating cavity is formed in the middle of the top cover, and a reaction reagent cavity is placed in the accommodating cavity; a T-shaped push rod is slidably arranged at the upper portion of the accommodating cavity, a separable push rod supporting cover is arranged between the push rod and the top of the top cover, a solid reaction reagent is loaded in the reaction reagent cavity, a through hole is formed in the top of the reaction reagent cavity, and the bottom of the reaction reagent cavity is provided with a tip end; the top cover is provided with a heat seal membrane, and the heat seal membrane is arranged below the tip end. According to the extracting capsule, the solid reaction reagent isplaced in the reaction reagent cavity, then the reaction reagent cavity is sealed in the top cover through the heat seal membrane, a liquid extracting reagent is placed in the inner tube and is sealedthrough the top cover, therefore, the solid reaction reagent and the extracting reagent are not contaminated before use, and the accuracy of examinations is improved.
Description
technical field [0001] The invention relates to the technical field of DNA extraction, in particular to a trace DNA extraction capsule. Background technique [0002] With the advancement of DNA testing technology, DNA extraction has become a key link that affects the success of the test. How to extract a sufficient amount of high-quality DNA from trace samples has always been a major problem in the field of forensic DNA testing. [0003] Patent CN201420415812.8 discloses a single-tube centrifuge sleeve for extraction. The extraction method is as follows: firstly put the cotton swab wipes / adhesives / adsorbates mixed with exfoliated cells into a filter tube with a filter membrane, The filter tube is directly inserted into the lumen of the collection tube, and then the cell lysate is added into the filter tube and placed in a temperature environment of 60° C. to 99° C. for lysis. Then carry out centrifugation, and after centrifugation, the cell lysate is collected in a collect...
Claims
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Login to View More IPC IPC(8): C12N15/10
CPCC12N15/1017C12Q2523/32
Inventor 余家昌徐泉张佳
Owner 奥然科技生物(深圳)有限责任公司