Contact biomaterial DNA collection and storage device and method thereof
A technology of biological testing materials and storage devices, which is applied in the field of DNA collection, can solve the problems of affecting the detection results, easily floating on the supernatant, and affecting the efficiency of detection, so as to reduce the chance of deterioration and reduce the drop of the shell The probability of breaking, the effect of convenient rotation collection
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Embodiment 1
[0044] see Figure 1-8 According to an embodiment of the present invention, a device for collecting and storing DNA of contact biological samples includes a housing 1, and one end of the housing 1 is provided with a first threaded groove 2, and a cooling device is provided in the first threaded groove 2. Mechanism 3, the cooling mechanism 3 includes an ice storage cylinder 4, the ice storage cylinder 4 is provided with threads, the ice storage cylinder 4 matches the first thread groove 2 through the threads, and the ice storage cylinder 4 One end of the cylinder 4 is fixed with a rotating baffle 5, the rotating baffle 5 is matched with the housing 1, a sealing door 6 is opened on the ice storage cylinder 4, and one side of the first threaded groove 2 An annular cavity 7 is opened on the housing 1, and the annular cavity 7 communicates with the first thread groove 2. A storage cavity 8 is opened in the housing 1. It is worth noting that, The storage cavity 8 can be cooled in a...
Embodiment 2
[0047] see figure 1 with Figure 4 , for the rotating baffle 5 , the end of the rotating baffle 5 away from the ice storage cylinder 4 is fixedly provided with a lever handle 28 . The housing 1 is provided with a foam insulation cover 29 . The outer cover of the handle glove 15 is provided with a replaceable disposable sterile cotton cover 30 . A swivel 31 is fixed on one side of the handle glove 15 on the central axis 13 . A number of ventilation holes 32 are opened around the transparent cover 10 . By arranging the leverage handle 28, the convenient rotation of the rotating baffle 5 is increased, and by arranging the foam insulation cover 29, the temperature in the storage cavity 8 is further increased to maintain a certain level, and the casing 1 can also be reduced from falling. The probability of failure, by setting the disposable sterile cotton cover 30, the cleanliness of the handle glove 15 is increased, by setting the leverage swivel 31, the rotation of the centra...
Embodiment 3
[0049] see Image 6 , Figure 7 with Figure 8 , for the limit mechanism 24, the limit mechanism 24 includes a threaded barrel 33, the threaded barrel 33 is sleeved on the extension barrel 20, and a nut 34 is threaded on the threaded barrel 33, and the threaded barrel 33 is threaded. One end of the barrel 33 is fixed with two arc-shaped threaded plates 35, the arc-shaped threaded plates 35 match the nuts 34, and an arc-shaped limiting plate 36 is arranged under the arc-shaped threaded plates 35, The inner wall of the arc-shaped limiting plate 36 is provided with several locking teeth. The collection cotton sheet 23 includes a cotton layer 37 and two cover mesh layers 38 , and the cover mesh layers 38 are attached to both sides of the cotton layer 37 respectively. The cover 27 is fixed with a U-shaped handle 39 . By setting the limit mechanism 24, the connection stability between the collection cotton piece 23 and the disposable replaceable core body 19 is increased, and th...
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