Multi-sleeve-layer vagina wipe extracting cotton swab and breathable sleeve

Abstract

The utility model discloses a multi-sleeve-layer vagina wiping object extracting cotton swab and a breathable sleeve, and belongs to the technical field of wiping object extracting auxiliary tools. A multi-sleeve-layer vagina wiping object extracting cotton swab comprises a cotton swab rod and a plurality of cotton swab layers arranged on the cotton swab rod, every two adjacent cotton swab layers are flattened, and a breathable sleeve comprises a sleeve body with the two ends open. Wherein openings in the two ends of the sleeve body are detachably connected with a taking and placing cover and a sleeve cap respectively; the breathable gauze is arranged at one opening and located on the side, close to the cannula cap, of the cannula body; the cotton swab disclosed by the utility model can prevent cotton scraps from floating in an experimental environment when an extract is transferred, and the arranged sleeve body can ensure the activity of a vagina wiping object, so that the wiping object is convenient to dry, and the accuracy of a detection result is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of wipe extraction auxiliary tools, in particular to a multi-layer vaginal wipe extraction cotton swab and a breathable sleeve. Background Art

[0002] To obtain semen residue left in the victim's body during the crime, DNA technology is then used to test semen stains in vaginal swabs; such physical evidence has always been the core evidence for conviction and sentencing in judicial trials;

[0003] At present, the commonly used cotton swabs for extracting vaginal swabs from victims are long-handled conventional medical cotton swabs, which are placed in fully sealed transparent plastic cannulas after extraction to prevent the cotton swab extract from being contaminated by the external environment. Conventional medical cotton swabs and fully sealed transparent plastic cannulas have the following technical defects:

[0004] (1) Ordinary vaginal swabs are conventional medical cotton swabs. During the DNA test, the cotton tip of the cotton swab needs to be cut with scissors and transferred to the test tube. However, according to the standard operation requirements of on-site extraction, the physical evidence needs to be air-dried and stored immediately after extraction. During the laboratory extraction and transfer steps, the cotton swab that is moistened and then dried will have many small cotton scraps floating in the surrounding experimental environment due to the tearing process under the action of the scissors. The DNA contained in these small cotton scraps can easily cause DNA contamination. DNA contamination refers to the mixing of exogenous biological substances containing DNA into biological evidence during the extraction or testing process, which causes changes in the results of the DNA test and increases the workload and difficulty of subsequent DNA identification.

[0005] (2) Ordinary vaginal swab cannulas are plastic fully sealed cannulas. Although they effectively prevent the cotton swab from being contaminated by the external environment after extraction, the fully sealed environment keeps the vaginal swab moist after extraction. The long-term wet state can easily cause the cells extracted from the cotton swab to rupture and become inactive. In summer and autumn, due to the high ambient temperature, the extracted cotton swabs in the sealed cannulas often deteriorate and mold, making it impossible to conduct DNA testing, which in turn has a direct impact on the acquisition of evidence in the case. Utility Model Content

[0006] The purpose of the present invention is to solve the problems raised in the above background technology, and to propose a multi-layer vaginal wiping cotton swab and a breathable sleeve.

[0007] In order to achieve the above purpose, the present invention adopts the following technical solutions:

[0008] A multi-layer vaginal wiping cotton swab comprises a cotton swab rod and multiple cotton swab layers arranged on the cotton swab rod, wherein two adjacent cotton swab layers are flattened.

[0009] Preferably, an easy-tear mark is provided between two adjacent cotton swab layers, and the easy-tear mark is provided close to the cotton swab rod.

[0010] A breathable sleeve comprises: a sleeve body with openings at both ends; wherein, the openings at both ends of the sleeve body are detachably connected to a pick-and-place cover and a sleeve cap; and breathable gauze is arranged at one of the openings, on a side of the sleeve body close to the sleeve cap.

[0011] Preferably, a sealing rubber is provided between the sleeve body and the sleeve cap.

[0012] Preferably, the pick-and-place cover, the sleeve cap and the sleeve body are interference fit.

[0013] Preferably, the sleeve body, the pick-and-place cover, and the sleeve cap are transparent.

[0014] Compared with the prior art, the present invention provides a multi-layer vaginal swab and a breathable cannula, which has the following beneficial effects:

[0015] The parts not involved in this device are the same as the existing technology or are implemented by using the existing technology.

[0016] (1) The cotton swab of the utility model is provided with flattening settings and easy-tear marks between the cotton swab layers. When DNA transfer and extraction is performed in the laboratory, the outer layer can be torn off along the easy-tear marks, thereby reducing the small cotton scraps floating in the surrounding experimental environment and causing laboratory DNA contamination.

[0017] (2) After extracting the evidence with a cotton swab, place it in a breathable cannula, then remove the cannula cap to expose the breathable gauze portion. The cotton swab is in a relatively independent environment within the cannula and is not easily contaminated by the outside world. At the same time, the presence of the breathable gauze makes the cannula ventilated and breathable, which helps to ventilate and dry the extract. After the cotton swab is dry, cover the cannula cap, place the extract in a relatively independent environment, and effectively ensure the biological activity of the vaginal swab, creating good sample conditions for the next step of DNA testing.

[0018] (3) The cotton swab of the utility model can prevent cotton scraps from floating in the experimental environment when transferring the extract, and can ensure the activity of the vaginal wipe when used in conjunction with the breathable sleeve, facilitate drying the wipe, and improve the accuracy of the test results. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 This is a schematic diagram of the structure of the multi-layer vaginal swab extraction cotton swab proposed in the present invention;

[0020] Figure 2 This is a schematic diagram of the structure of the cotton swab layer of the multi-layer vaginal wipe extraction cotton swab proposed in the present invention;

[0021] Figure 3 This is a schematic structural diagram of the multi-layer vaginal wiping cotton swab and breathable sleeve proposed in the present invention.

[0022] In the figure: 1. Cotton swab rod; 101. Cotton swab layer; 102. Tear mark; 2. Cannula body; 201. Access cover; 202. Cannula cap; 203. Breathable gauze; 204. Sealing rubber. DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present invention will be described clearly and completely below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, rather than all the embodiments.

[0024] Example 1:

[0025] Reference Figure 1-Figure 2 , a multi-layer vaginal swab extraction cotton swab, comprising a cotton swab rod 1 and a multi-layer cotton swab layer 101 arranged on the cotton swab rod 1, with two adjacent cotton swab layers 101 being flattened;

[0026] Specifically, the cotton swab layer 101 is divided into three layers, and the surface of each cotton swab layer 101 is compacted and smoothed, so that when the previous cotton swab layer 101 is removed, the remaining cotton scraps will not be brought up.

[0027] An easy-tear mark 102 is provided between two adjacent cotton swab layers 101, and the easy-tear mark 102 is provided close to the cotton swab rod 1;

[0028] When using the cotton swab, the easy-tear mark 102 is pinched with tweezers to cause the cotton swab layer 101 to fall off and be transferred to the experimental test tube. The transfer process is convenient and simple, and the cotton scraps in the cotton swab layer 101 will not float in the air due to cutting and tearing. At the same time, during the extraction process of the vaginal swab, the entire cotton swab needs to be placed in the victim's body for extraction. The entire surface of the cotton swab is an effective extraction site, and the transfer process will not involve bringing irrelevant media into subsequent DNA experiments.

[0029] Example 2:

[0030] Reference Figure 3 A breathable cannula comprises: a cannula body 2 with openings at both ends; wherein, a pick-up and drop-out cover 201 and a cannula cap 202 are detachably connected to the openings at both ends of the cannula body 2; a breathable gauze 203 is provided at one of the openings, on a side of the cannula body 2 close to the cannula cap 202;

[0031] When using this device, place the cotton swab in the cannula body 2 and open the cannula cap 202. Due to the presence of the breathable gauze 203, the cannula body 2 is in a ventilated and breathable environment, which is conducive to the ventilation and drying of the extract. After the cotton head of the cotton swab is dry, cover the cannula cap 202 and place the extract in a relatively independent environment, effectively ensuring the biological activity of the vaginal swab and creating good conditions for the next step of DNA testing.

[0032] A sealing rubber 204 is provided between the sleeve body 2 and the sleeve cap 202 to ensure sealing during storage.

[0033] The pick-and-place cover 201 , the sleeve cap 202 and the sleeve body 2 are interference-fitted, which can ensure the connection stability between the sleeve body 2 , the pick-and-place cover 201 and the sleeve cap 202 .

[0034] The sleeve body 2, the pick-and-place cover 201, and the sleeve cap 202 are transparent, and are made of plastic.

[0035] After extracting the evidence with a cotton swab, place it in the breathable cannula, then remove the cannula cap 202 to expose the breathable gauze 203. The cotton swab is in a relatively independent environment within the cannula, making it less susceptible to external contamination. At the same time, the presence of the breathable gauze 203 ensures that the cannula is ventilated and airy, which helps to dry the extract. After the cotton swab is dry, the cannula cap 202 is replaced, placing the extract in a relatively independent environment. This effectively ensures the biological activity of the vaginal swab and creates good sample conditions for the next step of DNA testing.

[0036] The cotton swab of the utility model can prevent cotton scraps from floating in the experimental environment when transferring the extract, and can ensure the activity of the vaginal wipe when used in conjunction with the breathable sleeve, facilitate drying the wipe, and improve the accuracy of the test result.

[0037] The above is only a preferred specific implementation method of the present invention, but the protection scope of the present invention is not limited to this. Any technician familiar with the technical field within the technical scope disclosed by the present invention can make equivalent replacements or changes based on the technical solution and utility model concept of the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A multi-layer vaginal swab, characterized in that: It comprises a cotton swab rod (1) and a plurality of cotton swab layers (101) arranged on the cotton swab rod (1), wherein two adjacent cotton swab layers (101) are flattened and arranged, and an easy-tear rolling mark (102) is provided between the two adjacent cotton swab layers (101).

2. The multi-layer vaginal swab according to claim 1, characterized in that: The easy-tear mark (102) is provided close to the cotton swab rod (1).

3. A breathable sleeve for storing the multi-layer vaginal swab according to any one of claims 1-2, characterized in that: include: A sleeve body (2) with openings at both ends; Wherein, the openings at both ends of the sleeve body (2) are detachably connected to a pick-and-place cover (201) and a sleeve cap (202); The breathable gauze (203) is arranged at one of the openings and is located on a side of the sleeve body (2) close to the sleeve cap (202).

4. The breathable sleeve according to claim 3, characterized in that: A sealing rubber (204) is provided between the sleeve body (2) and the sleeve cap (202).

5. The breathable sleeve according to claim 3, characterized in that: The pick-and-place cover (201), the sleeve cap (202) and the sleeve body (2) are interference fit.

6. The breathable sleeve according to claim 3, characterized in that: The sleeve body (2), the pick-and-place cover (201), and the sleeve cap (202) are transparent.

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