Splash-proof nucleic acid safe sampling tube

Abstract

The utility model discloses a splash-proof nucleic acid safe sampling tube which comprises a test tube main body, a sampling rod inserting unit and a convenient sampling liquid sealing unit, through the method of additionally installing the special rod installing assembly, the problem of liquid splashing caused by large-amplitude shaking in the process that the sampling rod is inserted into the pipe and broken is prevented, the sampling rod section is limited, and the situation that the broken cotton head and the broken rod section in a traditional sampling pipe float in any posture in the pipe, and the sampling rod section is prone to falling off in the subsequent sample liquid suction process is prevented. The liquid taking needle collides with the sampling rod, so that the needle head is blocked or broken. The nucleic acid sample tube disclosed by the utility model is placed on a sample frame of an extractor, and then the auxiliary cover is rotated, so that a needle head of the extractor is aligned with the puncture opening, and the extractor can be used for safely and directly extracting a sample in the tube, and the thin film can be punctured in the process to ensure that internal sample liquid is not dispersed; the inconvenient process that in the prior art, a sample in a tube needs to be transferred to an extraction plate, and then an extraction instrument is used for extraction operation is omitted.

Description

TECHNICAL FIELD

[0001] The embodiment of the utility model belongs to the technical field of sampling tube, more particularly, relate to a kind of anti-splash nucleic acid safety sampling tube. BACKGROUND

[0002] In nucleic acid sampling process, it is very important to prevent swab end sample splashing and pollution, if the substance splashed by swab end contains high load virus, it can pollute the surrounding environment, cause others to be infected. At present, most nucleic acid sampling swabs are removed by the way of breaking at nucleic acid sampling tube mouth, although it is convenient to operate, but it is easy to make swab end sample splash: in the breaking process of nucleic acid sampling tube, due to the lack of stable protection of bottle mouth by pipe cover, large amplitude vibration can make swab end sample splash into air, even cause swab end to pop out, pollute workbench and surrounding environment, cause infection to population, in addition, swab is not easy to break. Therefore, design a kind of nucleic acid sampling tube capable of preventing swab end sample and internal soaking liquid from splashing and quickly cutting off swab cotton swab end, it has important practical significance.

[0003] To solve the above technical problems, Chinese utility model patent CN220025086U discloses a splash-proof nucleic acid sampling tube cover and a nucleic acid sampling tube using the same. The nucleic acid sampling tube cover comprises a sealing cover and a sampling inner cover. The sampling inner cover is provided with a covering layer. The covering layer is composed of a fan-shaped covering area and a fan-shaped hollow area. The sampling inner cover is provided with two cutting blades with opposite cutting edges along the diameter direction. One end of each of the two cutting blades is located on the central axis of the sampling inner cover. The two cutting blades move oppositely to form a V-shaped cutting mechanism for cutting the end of the swab. The nucleic acid sampling tube comprises a sampling tube body and the above-mentioned splash-proof nucleic acid sampling tube cover. The utility model can cut off the end of the swab, prevent the sample from splashing, and achieve the function of rapid cutting. Therefore, the virus pollution of the surrounding environment is prevented. The technical solution is suitable for wide application in nucleic acid sampling work. In addition, Chinese utility model patent CN217677522U discloses a nucleic acid sampling tube with easy-to-break sampling stick. The nucleic acid sampling tube comprises a sampling tube body. A fixed block is fixedly connected to the outer surface of the left part of the sampling tube body. A clamping mechanism is clamped to the inside of the fixed block. An installation block is fixedly connected to the upper end of the clamping mechanism. A sealing cover is fixedly connected to the right end of the installation block. The outer surface of the sealing cover is movably connected to the sampling tube body through a movable shaft. A sealing plug is fixedly connected to the inner wall of the upper part of the sealing cover. An active port is formed in the outer surface of the front part of the sampling tube body. A through hole is formed in the inner wall of the active port. A breaking mechanism is movably connected in the through hole. A placing groove and a storage groove are formed in the lower inner wall of the active port. The nucleic acid sampling tube with easy-to-break sampling stick is convenient for breaking the sampling stick after sampling. The sealing cover is convenient to open and close, has good sealing performance, and is suitable for breaking the sampling stick of the nucleic acid sampling tube.

[0004] The above-mentioned patent technologies change the structure of the sampling tube to assist in breaking the sampling rod and preventing splashing to some extent. However, there are still the following technical problems or improvements: (1) Both of them use the pressure cutting method to break the rod. However, it is difficult for the operator to press the rod because the operator usually holds the sampling tube and the sampling rod with both hands. (2) The broken cotton head and rod segment float in any posture in the tube, which may cause the needle to collide with the sampling rod when the liquid is taken, resulting in the technical problems of needle blockage or needle breakage. Utility model content

[0005] In view of the above defects or improvement needs of the prior art, the utility model provides a kind of splash-proof nucleic acid safety sampling tube, by the method of installing special rod assembly, not only prevent the problem of liquid splashing caused by large swing in the process of sampling rod insertion into tube breakage, and the sampling rod segment is positioned, prevent the technical problems that the cotton head of traditional sampling tube breakage and rod segment float in arbitrary posture in tube, easy to cause subsequent suction immersion liquid, liquid extraction needle and sampling rod collision, cause needle block or needle breakage.

[0006] In order to achieve the above object, a splash-proof nucleic acid safety sampling tube, comprising:

[0007] Test tube main body, sampling rod insertion unit for inserting sampling rod segment in the test tube main body top pipe orifice, convenient liquid extraction sealing unit for sealing test tube main body pipe orifice is arranged above the sampling rod insertion unit;

[0008] The test tube main body includes a side stopper arranged at the inner surface port for clamping the sampling rod insertion unit, and an outer thread arranged on the outer side wall of the test tube main body port.

[0009] The convenient liquid extraction sealing unit includes a base cover with an inner thread, an inner top cavity arranged at the inner top surface of the base cover, a puncturable film tightly closed and mounted in the inner top cavity for preventing internal liquid exposure and facilitating puncture, and a puncture prevention assembly arranged on the outer surface of the base cover to prevent accidental puncture of the puncturable film.

[0010] The outer thread and the inner thread are in threaded fastening connection.

[0011] Preferably, the sampling rod insertion unit comprises:

[0012] A positioning base ring clamped on the side stopper, a rod assembly fixed to the side wall of the positioning base ring, and a broken rod auxiliary knife arranged at the upper edge of the positioning base ring.

[0013] The rod assembly includes a limiting tube fixedly connected to the inner side wall of the positioning base ring, an insertion port for inserting the sampling rod is formed at the upper end of the limiting tube, and a pressing rod assembly is arranged on the side wall of the limiting tube for pressing the sampling rod segment.

[0014] Preferably, the side wall of the positioning base ring is provided with a side stopper to prevent the sampling rod insertion unit from being pushed into the test tube main body.

[0015] Preferably, the insertion port is a bucket-shaped port.

[0016] Preferably, the pressing rod assembly comprises:

[0017] A pry bar is rotatably connected to the side wall of the limiting tube through a hinge, a pressing block is arranged at the top of the pry bar, and a notch is arranged in the side wall of the limiting tube to facilitate the pressing block to be pressed in; the limiting tube is further provided with a vertical slot for enabling the lower section of the pry bar to swing in and out of the limiting tube.

[0018] Preferably, the broken rod auxiliary cutter comprises a sawtooth part arranged at the top thereof.

[0019] Preferably, the top of the broken rod auxiliary cutter has an overall arc shape.

[0020] Preferably, the anti-puncture assembly comprises:

[0021] A transmission connecting part is arranged at the center of the base cover, a sub-cover is rotatably connected to the upper surface of the base cover through the transmission connecting part, and a first puncture port and a second puncture port are arranged on the base cover and the sub-cover respectively and are vertically aligned.

[0022] Overall, compared with the prior art, the above technical scheme conceived by the present application can achieve the following beneficial effects:

[0023] (1) The anti-splashing nucleic acid safety sampling tube of the present application is provided with a special rod mounting assembly 220, which not only prevents the liquid from splashing due to the large shaking of the sampling rod during the insertion of the sampling rod into the tube, but also limits the position of the sampling rod section, preventing the broken cotton head and rod section in the traditional sampling tube from floating in any posture in the tube, which can easily cause the needle to collide with the sampling rod during the subsequent suction of the soaking liquid, causing the needle to be blocked or broken.

[0024] (2) The anti-splashing nucleic acid safety sampling tube of the present application is provided with a broken rod auxiliary cutter on the side wall of the positioning base ring, and the cutter has an arc sawtooth shape, which can not only make the sampling rod shake and grind against the auxiliary cutter at the breaking point to quickly disconnect the sampling tube, but also be more conducive to damaging the same breaking point section during the shaking process, thereby improving the sawing efficiency.

[0025] (3) The anti-splashing nucleic acid safety sampling tube of the present application inserts the sampling rod into the limiting tube along the insertion port, and during the process of gradually inserting the sampling rod into the bottom of the limiting tube, the lower end of the pry bar is pressed outward, so that under the action of rotation, the pressing block at the upper end of the pry bar is pressed into the limiting tube, thereby pressing the inserted sampling rod section; then, the sampling rod is held and bent, and the breaking point is at the broken rod auxiliary cutter, which is quickly ground and broken under the auxiliary shaking, thereby achieving the disconnection of the rod section by pressing the lower rod section and shaking and grinding the upper rod section, which not only prevents the internal liquid from splashing due to the shaking of the lower sampling cotton head, but also solves the technical problem of the difficulty of the operator to apply a cutting force to the sampling rod in the prior art, and only one hand is needed to bend and shake to achieve the disconnection of the rod section.

[0026] (4) The utility model discloses a splashproof nucleic acid safety sampling tube, through the utility model nucleic acid sample tube is placed on the extraction instrument sample frame, then rotates the vice cover, makes the extraction instrument needle head aim at the puncture, can use the extraction instrument safely to the sample in the tube direct extraction, can puncture the film in the process and guarantee that the internal sample liquid does not scatter, save the inconvenient process of the prior art and need to transfer the sample in the tube to the extraction plate on, utilize the extraction instrument and carry out the extraction operation again. BRIEF DESCRIPTION OF DRAWINGS

[0027] Figure 1 It is whole structure schematic diagram for the utility model embodiment splashproof nucleic acid safety sampling tube;

[0028] Figure 2 It is assembly schematic diagram for the utility model embodiment splashproof nucleic acid safety sampling tube;

[0029] Figure 3 It is test tube main body top end structure schematic diagram for the utility model embodiment splashproof nucleic acid safety sampling tube;

[0030] Figure 4 It is sampling rod insertion unit whole structure schematic diagram for the utility model embodiment splashproof nucleic acid safety sampling tube;

[0031] Figure 5 It is convenient liquid sealing unit whole structure schematic diagram for the utility model embodiment splashproof nucleic acid safety sampling tube;

[0032] Figure 6 It is partial enlarged view A for the utility model embodiment splashproof nucleic acid safety sampling tube;

[0033] Figure 7 It is broken rod auxiliary knife center section structure schematic diagram for the utility model embodiment splashproof nucleic acid safety sampling tube;

[0034] In all drawings, same reference signs indicate same technical features, specifically: 1-test tube main body, 101-side stop block, 102-outer thread, 2-sampling rod insertion unit, 210-positioning base ring, 211-side stop rim, 220-rod assembly, 221-limiting tube, 2210-insertion port, 2211-hopper port, 222-pressing rod assembly, 2221-hinge part, 2222-prying lever, 2223-pressing block, 2224-groove, 230-broken rod auxiliary knife, 231-sawtooth part, 3-convenient liquid sealing unit, 310-base cover, 311-inner thread, 312-inner top cavity, 313-first puncture, 320-puncturable film, 330-vice cover, 331-transmission connection part, 332-second puncture. DETAILED DESCRIPTION

[0035] In the description of the present application, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like indicate the orientation or positional relationship shown in the drawings, which are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0036] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined as "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0037] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connection", "connection", "fixing" and the like should be understood broadly, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0038] In order to make the purpose, technical scheme and advantages of the present application more clear, the present application will be further described in detail below with reference to the drawings and examples. It should be understood that the specific examples described herein are only used to explain the present application and not to limit the present application. In addition, the technical features involved in each embodiment of the present application described below can be combined with each other as long as they do not conflict with each other.

[0039] As shown in the present application, the anti-splashing nucleic acid safety sampling tube comprises: Figures 1-7

[0040] The test tube body 1, the sampling rod inserting unit 2 mounted on the top of the test tube body 1 and used for inserting the sampling rod segment, the liquid sealing unit 3 arranged above the sampling rod inserting unit 2 and used for sealing the test tube body 1;

[0041] The test tube body 1 comprises a side stop block 101 arranged at the inner surface port of the test tube body 1 and used for clamping the sampling rod inserting unit 2, and an outer thread 102 arranged on the outer side wall of the port of the test tube body 1.​

[0042] The liquid taking sealing unit 3 comprises a base cover 310 provided with an inner thread 311, an inner top cavity 312 arranged at the inner top surface of the base cover 310, a puncturable film 320 which is tightly and sealingly mounted in the inner top cavity 312 and used for preventing internal liquid from being exposed and facilitating puncture, and a puncture prevention assembly arranged on the outer surface of the base cover 310 and used for preventing the puncturable film 320 from being unintentionally punctured.

[0043] The outer thread 102 is in threaded fastening connection with the inner thread 311.

[0044] As shown in Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 7 indicate that, in the embodiment of the utility model, the sampling rod inserting unit 2 comprises:

[0045] A positioning base ring 210 is clamped on the side block 101, a rod mounting assembly 220 is fixed to the side wall of the positioning base ring 210, and a rod breaking auxiliary cutter 230 is arranged at the upper edge of the positioning base ring 210.

[0046] The rod mounting assembly 220 comprises a limiting tube 221 fixedly connected with the inner side wall of the positioning base ring 210, an insertion port 2210 for inserting the sampling rod is formed in the upper end of the limiting tube 221, and a pressing rod assembly 222 for pressing the sampling rod segment is arranged on the side wall of the limiting tube 221; and a liquid immersion hole is formed in the side wall of the limiting tube 221.

[0047] In the embodiment of the utility model, by means of the method of additionally mounting the special rod mounting assembly 220, not only the problem of liquid splashing caused by the large shaking of the sampling rod during the insertion of the rod into the tube is prevented, but also the sampling rod segment is limited, thereby preventing the broken cotton head and rod segment in the traditional sampling tube from floating in any posture in the tube, which easily causes the technical problem that the needle and the sampling rod collide when the soaked liquid is sucked, thereby causing the needle blockage or the needle breakage.

[0048] As shown in Figure 1 , Figure 2 , Figure 4 , Figure 6 and Figure 7 indicate that, in the embodiment of the utility model, the side wall of the positioning base ring 210 is provided with a side blocking edge 211 for preventing the sampling rod inserting unit 2 from being pushed into the test tube body 1.

[0049] As shown in Figure 1 indicate that, in the embodiment of the utility model, the insertion port 2210 is a bucket-shaped port 2211.

[0050] As shown in Figure 2As shown in this embodiment of the utility model, the pressure bar assembly 222 includes:

[0051] A pry bar 2222 is rotatably connected to the side wall of the limiting tube 221 via a hinge 2221; a pressure block 2223 is provided at the top of the pry bar 2222; and a slot 2224 is provided on the side wall of the limiting tube 221 to facilitate the pressure block 2223 being pressed in. The limiting tube 221 is also provided with a vertical slot that allows the lower section of the pry bar 2222 to swing in and out of the limiting tube 221.

[0052] like Figure 4 and Figure 6 As shown in this embodiment of the utility model, the rod breaking auxiliary knife 230 includes: a serrated portion 231 disposed on its top;

[0053] like Figure 7 and Figure 4 As shown in this embodiment of the invention, the top of the auxiliary blade 230 has an arc-shaped overall profile.

[0054] In this embodiment of the invention, by setting a broken rod auxiliary blade on the side wall of the positioning base ring, and the blade being arc-shaped and sawtooth-shaped, the sampling tube can be quickly broken by shaking and grinding the broken point of the sampling rod against the auxiliary blade. Furthermore, the arc shape makes it easier to damage the same cross section during the shaking process, thus improving the sawing efficiency.

[0055] like Figure 4 Figure 6 Figure 7 Figure 6 Figure 7 Figure 5 As shown in this embodiment of the invention, the puncture-resistant component includes:

[0056] The base cover 310 has a transmission connection 331 located at its center, a secondary cover 330 rotatably connected to the upper surface of the base cover 310 via the transmission connection 331, and a first puncture port 313 and a second puncture port 332 respectively located on the base cover 310 and the secondary cover 330 to maintain vertical alignment.

[0057] The working principle of the utility model discloses: firstly, the sampling rod insertion unit 2 has been clamped on the side stopper 101 when leaving factory; then, the sampling rod after sampling is inserted into the limiting pipe 221 along the insertion port 2210, when gradually inserting into the bottom in the limiting pipe 221, the lower end of the crowbar 2222 is pressed from outside, so that under the action of rotation, the pressing block 2223 of the upper end of the crowbar 2222 is pressed into the limiting pipe 221, so that the inserted sampling rod section is pressed tightly; then, the sampling rod is held and bent, the bending point is at the broken rod auxiliary knife 230, and it is quickly ground off under the auxiliary shaking, so that through the way of the lower rod section compression and the upper rod section shaking and grinding, not only prevent the internal liquid splashing caused by the shaking of the lower sampling cotton head, but also solve the technical problem that the operator is inconvenient to apply the cutting force to the sampling rod in the prior art, and only one hand bending and shaking can realize the rod section disconnection; then, the convenient liquid taking sealing unit 3 is fixed on the top of the test tube main body 1 through screw connection, and is sealed by means of the puncturable film; then, when the subsequent liquid needs to be drawn, only the top sub-cover 330 is rotated, so that the first puncture port 313 and the second puncture port 332 are aligned, the puncturable film is pierced by inserting the needle, and the internal solution can be sucked.

[0058] In addition, by placing the nucleic acid sample tube of the utility model on the extraction instrument sample rack, then rotating the sub-cover, so that the extraction instrument needle is aligned with the puncture port, the extraction instrument can be used to safely extract the sample in the tube, and the puncturable film ensures that the internal sample liquid does not spread, and the inconvenient process of transferring the sample in the tube to the extraction plate and then using the extraction instrument to extract is saved.

[0059] The above is only the preferred embodiment of the present application, and does not limit the present application, any modification, equivalent replacement and improvement made within the spirit and principle of the present application should be included in the protection scope of the present application. The above is only the preferred embodiment of the present application, and it should be pointed out that, for ordinary skilled in the art, without departing from the technical principle of the present application, a number of improvements and modifications can be made, and these improvements and modifications should be regarded as the protection scope of the present application.

Claims

1. A splash-proof nucleic acid safety sampling tube, characterized by, The utility model relates to a kind of sampling tube, including: Test tube body (1), install in the test tube body (1) top pipe orifice and be used for the sampling rod section of inserting sampling rod inserting unit (2), be located in the sampling rod inserting unit (2) upper and be used for sealing test tube body (1) pipe orifice convenient liquid sealing unit (3); The test tube body (1), including the side stop (101) for being arranged in the port of its inner surface and being used for the sampling rod inserting unit (2) of clamping and placing sampling rod inserting unit (2), the outer thread (102) being arranged in the port outside wall of the test tube body (1); The convenient liquid sealing unit (3), including the base cover (310) being equipped with inner thread (311), the inner top cavity (312) being arranged in the inner top surface of the base cover (310), the puncturable film (320) being tightly closed and being installed in the inner top cavity (312) and being used for preventing internal liquid exposure and facilitating puncture, the anti-puncture assembly being arranged in the outer surface of the base cover (310) to prevent the puncturable film (320) from being unintentionally punctured. The outer thread (102) and the inner thread (311) are threadedly fastened.

2. The splash-proof nucleic acid safety sampling tube according to claim 1, wherein The sampling rod inserting unit (2), including: The positioning base ring (210) is clamped on the side stop (101), the rod assembly (220) is fixed to the side wall of the positioning base ring (210), the rod breaking auxiliary knife (230) is arranged at the upper edge of the positioning base ring (210); The rod assembly (220), including the limiting tube (221) fixedly connected with the inner side wall of the positioning base ring (210), the insertion port (2210) is arranged at the upper end of the limiting tube (221) for inserting the sampling rod, the pressing rod assembly (222) is arranged at the side wall of the limiting tube (221) for pressing the sampling rod section, and the liquid immersion hole is arranged at the side wall of the limiting tube (221).

3. The splash-proof nucleic acid safety sampling tube according to claim 2, wherein The side stop (101) is arranged on the side wall of the positioning base ring (210) to prevent the sampling rod inserting unit (2) from being pushed into the test tube body (1).

4. The splash-proof nucleic acid safety sampling tube according to claim 2, wherein The insertion port (2210) is a bucket-shaped port (2211).

5. The splash-proof nucleic acid safety sampling tube according to claim 2, wherein The pressing rod assembly (222), including: The pry bar (2222) is rotatably connected to the side wall of the limiting tube (221) through the hinge (2221), the pressing block (2223) is arranged at the top of the pry bar (2222), and the notch (2224) is arranged at the side wall of the limiting tube (221) to facilitate the pressing block (2223) to press in, and the limiting tube (221) is also provided with a vertical slot for the lower segment of the pry bar (2222) to swing in and out of the limiting tube (221).

6. The splash-proof nucleic acid safety sampling tube according to any one of claims 2 to 5, wherein The sawtooth portion (231) is arranged at the top of the rod breaking auxiliary knife (230).

7. The splash-proof nucleic acid safety sampling tube according to claim 6, wherein The top of the rod breaking auxiliary knife (230) is arc-shaped.

8. The splash-proof nucleic acid safety sampling tube according to claim 1, wherein The anti-puncture assembly, including: The transmission connecting portion (331) is arranged at the center of the base cover (310), the sub-cover (330) is rotatably connected to the upper surface of the base cover (310) through the transmission connecting portion (331), the first puncture port (313) and the second puncture port (332) are arranged at the base cover (310) and the sub-cover (330) in vertical position, respectively.

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