Anti-pollution nucleic acid sample collection tube

Abstract

The utility model discloses an anti-pollution nucleic acid sample collection tube which comprises a tube body and a sealing sleeve, and the sealing sleeve is sleeved at the upper end of the outer part of the tube body in a threaded manner. According to the throat swab cutting device, due to the design of mechanical linkage, medical staff can cut the throat swab inserted into the tube body only by pulling the handle, so that the head end of a collected sample of the throat swab is located in the tube body to be collected, the working difficulty of the medical staff is reduced, and the working efficiency is improved. Therefore, the nucleic acid sample collection efficiency is improved, the head end of the throat swab is prevented from being in contact with the hand of a medical worker, and the anti-pollution effect is achieved. Through the design of the blocking function, after the sealing sleeve is connected with the pipe body, the blocking plate can separate the interior of the guide hole from the outside, so that the situation that outside air is communicated with air in the pipe body through the guide hole and the receding hole which coincide with each other is avoided, and it can be known that by means of the device, the sealing effect is good. And the sealing performance in the pipe body is ensured.

Description

Technical Field

[0001] This utility model relates to the field of sample collection tube technology, specifically to a contamination-proof nucleic acid sample collection tube. Background Technology

[0002] Nucleic acid testing is a highly efficient method for determining whether a person is infected with a virus. It boasts advantages such as convenient sampling, high accuracy, and low cost, and is widely used in my country and many other countries. Nucleic acid testing typically uses throat swabs. After sampling from the throat, the tip of the swab is usually collected in a sampling tube for unified testing. During sampling, it's crucial to ensure the swab tip breaks along the crease in the sample collection tube while simultaneously covering the opening with the bottle cap. In previous use, we found that without covering, the swab tip sometimes splashed out when the swab collector broke, even flying out of the collection tube. If the swab collector breaks with considerable force due to improper storage, the preservation solution inside the collection tube may also splash without covering. Covering with the bottle cap effectively solves these problems and also reduces the time the inside of the tube is exposed to air, preventing contamination. When the sampler covers the bottle opening with the cap, or when the sampler unscrews or closes the cap of the collection tube during nucleic acid collection, the sampler's hand may easily touch the area of ​​the test tube opening, causing contamination.

[0003] The patent titled "A Nucleic Acid Collection Tube to Prevent Finger Contamination" (publication number "CN220385099U") addresses the aforementioned problem. However, this device requires medical personnel to repeatedly bend the throat swab inside the tube to break it, a time-consuming and laborious process that increases the workload and reduces the efficiency of nucleic acid sample collection. Therefore, this invention designs a contamination-resistant nucleic acid sample collection tube to solve these problems. Utility Model Content

[0004] The purpose of this invention is to provide a contamination-resistant nucleic acid sample collection tube to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a contamination-proof nucleic acid sample collection tube, comprising a tube body and a sealing sleeve, wherein the sealing sleeve is threaded onto the upper part of the tube body, and an insertion hole is integrally provided at the top of the inner part of the sealing sleeve. A cutting assembly is provided inside the sealing sleeve, the cutting assembly comprising mounting pins fixed at the four corners of the top of the inner part of the sealing sleeve, a connecting plate fixed at the bottom of the mounting pins, an installation hole integrally provided in the middle of the inner part of the connecting plate, wedge blocks slidingly connected to the left and right sides of the top of the connecting plate, a blade fixedly provided at the lower inner end of the wedge blocks, sliding rods slidingly connected to the left and right sides of the inner part of the sealing sleeve, and connecting pins threaded inside the sliding rods, a connecting rod fixedly provided outside the sliding rods, and a handle fixedly provided at the front end of the connecting rods.

[0006] Furthermore, the socket and mounting hole are designed as through holes, and the center of the socket and the center of the mounting hole are designed to coincide with each other.

[0007] Furthermore, the inner end of the connecting pin is tapered, the cross-section of the connecting rod in top view is U-shaped, and the sealing sleeve has guide holes integrally provided on both the left and right sides inside.

[0008] Furthermore, the guide hole is a through hole design, the guide hole is sleeved on the outside of the slide rod, and a sealing plate is fixedly sleeved on the outside of the slide rod, the inner side of the sealing plate and the outer wall of the sealing sleeve are designed to fit together.

[0009] Furthermore, the tube body has integrated clearance holes on both the left and right sides. These clearance holes are through holes, and the width of the clearance hole in the side view cross-section is greater than the outer diameter of the connecting pin.

[0010] Furthermore, a first spring is fixedly provided at the bottom of the slide rod, and the end of the first spring away from the slide rod is fixedly connected to the sealing sleeve.

[0011] Furthermore, a second spring is fixedly provided on the left and right sides of the top of the connecting plate, and the end of the second spring away from the connecting plate is fixedly connected to the outer wall of the wedge block.

[0012] Furthermore, a sealing cover is provided on the top left side of the sealing sleeve via an adapter and on the right side via a snap fastener, and a clearance groove is integrally provided inside the sealing cover.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] 1. This utility model, through its mechanical linkage design, allows medical personnel to cut the pharyngeal swab inserted into the tube body simply by pulling the handle. This ensures that the sample collection tip of the pharyngeal swab is inside the tube for collection. Thus, by using the device in this application, the workload of medical personnel is reduced, thereby improving the efficiency of nucleic acid sample collection and preventing the tip of the pharyngeal swab from coming into contact with the medical personnel's hands, thus preventing contamination.

[0015] 2. Through the design of the sealing function, when the sealing sleeve is connected to the tube body, the sealing plate can isolate the inside of the guide hole from the outside, thereby preventing the outside air from being in communication with the air inside the tube body through the overlapping guide holes and clearance holes. Thus, by using the device in this application, the sealing of the inside of the tube body is ensured. Attached Figure Description

[0016] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a front-view perspective view of a nucleic acid sample collection tube for preventing contamination according to this utility model;

[0018] Figure 2 This is a three-dimensional view of the internal structure of a contamination-resistant nucleic acid sample collection tube according to this utility model;

[0019] Figure 3 This is a bottom-view perspective of the inside of the sealing sleeve;

[0020] Figure 4 A perspective view of the connecting plate, mounting pin, wedge block, slide bar, and connecting pin;

[0021] Figure 5 This is a three-dimensional view of the tube body and the relief hole.

[0022] The attached diagram lists the components represented by each number as follows:

[0023] 1-Pipe body, 2-Sealing sleeve, 3-Insertion hole, 4-Cutting assembly, 401-Mounting pin, 402-Connecting plate, 403-Mounting hole, 404-Wedge block, 405-Blade, 406-Slide rod, 407-Connecting pin, 408-Connecting rod, 409-Handle, 5-Guide hole, 6-Sealing plate, 7-Displacement hole, 8-First spring, 9-Second spring, 10-Sealing cover, 11-Displacement groove. Detailed Implementation

[0024] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of the present utility model.

[0025] Example 1

[0026] like Figure 1 , Figure 2 , Figure 3 , Figure 4 As shown, the device includes a tube body 1 and a sealing sleeve 2. The sealing sleeve 2 is threaded onto the upper part of the tube body 1. An insertion hole 3 is integrally provided at the top of the inner part of the sealing sleeve 2. A cutting component 4 is provided inside the sealing sleeve 2. The cutting component 4 includes mounting pins 401 fixed at the four corners of the top of the inner part of the sealing sleeve 2. A connecting plate 402 is fixed at the bottom of the mounting pins 401. An installation hole 403 is integrally provided in the middle of the inner part of the connecting plate 402. Wedge blocks 404 are slidably connected to the left and right sides of the top of the connecting plate 402. A blade 405 is fixedly provided at the lower inner side of the wedge block 404. A sliding rod 406 is slidably connected to the left and right sides of the inner part of the sealing sleeve 2. A connecting pin 407 is threaded inside the sliding rod 406. A connecting rod 408 is fixed outside the sliding rod 406. A handle 409 is fixed at the front end of the connecting rod 408.

[0027] The insertion hole 3 and mounting hole 403 are through holes, and the center of the insertion hole 3 and the center of the mounting hole 403 are aligned. The inner end of the connecting pin 407 is tapered, and the connecting rod 408 has a U-shaped cross-section when viewed from above. Guide holes 5 are integrally provided on both the left and right sides inside the sealing sleeve 2. Medical personnel first thread the sealing sleeve 2 to the tube body 1, then rotate the connecting pin 407, causing it to move along the direction of the wedge block 404 until the tapered surface of the connecting pin 407 and the inclined surface of the wedge block 404 are in contact. Then, holding the tube body 1 with their left hand, they pass the tip of the throat swab collected from the right hand through the insertion hole 3 and the mounting hole 403 into the tube body 1. The medical personnel then pull down the handle 409 with their left thumb, causing the handle 409 to move the connecting rod 408, along with the slide rod 406 and the connecting pin. 407 moves downward along the direction of the guide hole 5, thereby causing the conical surface of the connecting pin 407 to press against the inclined surface of the wedge block 404. At this time, two wedge blocks 404, together with the corresponding blades 405, move towards each other, thereby causing the blades 405 to cut the tip of the pharyngeal swab. The cut tip of the pharyngeal swab falls into the lower end of the tube body 1. In this way, the efficiency of breaking the pharyngeal swab is improved. At the same time, the pharyngeal swab is isolated from the hands of medical staff during the breaking process, which has the effect of preventing contamination.

[0028] Example 2

[0029] like Figure 2 , Figure 3 , Figure 4 , Figure 5 As shown, the guide hole 5 is a through hole design and is sleeved on the outside of the slide rod 406. The sealing plate 6 is fixedly sleeved on the outside of the slide rod 406. The inner side of the sealing plate 6 is designed to fit against the outer wall of the sealing sleeve 2. The left and right sides of the tube body 1 are integrally provided with clearance holes 7. The clearance holes 7 are through holes. The width of the clearance hole 7 in the side view cross section is greater than the outer diameter of the connecting pin 407. The bottom of the slide rod 406 is fixedly provided with a first spring 8, and the end of the first spring 8 away from the slide rod 406 is fixedly connected to the sealing sleeve 2. The top left and right sides of the connecting plate 402 are fixedly provided with a second spring 9, and the end of the second spring 9 away from the connecting plate 402 is fixedly connected to the outer wall of the wedge block 404. The top left side of the sealing sleeve 2 is provided with a sealing cover 10 through an adapter and the right side is provided with a buckle. The sealing cover 10 is integrally provided with a clearance groove 11 inside.

[0030] According to the operation method in Embodiment 1, when the medical staff rotates the connecting pin 407, the clearance hole 7 makes room for the connecting pin 407 and the wedge block 404 to fit together. When the handle 409 is pulled down, the slide rod 406 compresses the first spring 8 and deforms. When the wedge block 404 drives the blade 405 to move towards each other, the second spring 9 deforms. After the first end of the pharyngeal swab is cut, the medical staff releases the handle 409. Through the rebound force of the first spring 8 and the second spring 9, the slide rod 406, the connecting pin 407 and the wedge block 404 are reset, which makes it easier for the medical staff to cut the subsequent pharyngeal swabs. In addition, the sealing plate 6 can prevent the gas inside the tube body 1 from being discharged to the outside through the overlapping clearance hole 7 and the guide hole 5, ensuring the sealing of the inside of the tube body 1. After the device is used up, medical staff will close the sealing cover 10 to isolate the socket 3 from the outside world. At the same time, the clearance groove 11 can prevent the outer edge of the socket 3 port from contacting the bottom surface of the sealing cover 10.

Claims

1. A contamination-resistant nucleic acid sample collection tube, comprising a tube body (1) and a sealing sleeve (2), characterized in that: The sealing sleeve (2) is threaded onto the upper part of the outer side of the tube body (1). The sealing sleeve (2) has an integrally formed insertion hole (3) at the top inside. The sealing sleeve (2) has a cutting component (4) inside. The cutting component (4) includes mounting pins (401) fixed at the four corners of the top inside of the sealing sleeve (2). The bottom of the mounting pin (401) is fixed with a connecting plate (402). The middle part of the connecting plate (402) is integrally formed with a mounting hole (403). The top left and right sides of the connecting plate (402) are slidably connected with wedge blocks (404). The lower end of the inner side of the wedge block (404) is fixed with a blade (405). The left and right sides of the sealing sleeve (2) are slidably connected with a sliding rod (406). The sliding rod (406) is threaded with a connecting pin (407). The outside of the sliding rod (406) is fixed with a connecting rod (408). The front end of the connecting rod (408) is fixed with a handle (409).

2. The anti-contamination nucleic acid sample collection tube according to claim 1, characterized in that: The insertion hole (3) and the mounting hole (403) are designed as through holes, and the center of the insertion hole (3) and the center of the mounting hole (403) are designed to coincide with each other.

3. The anti-contamination nucleic acid sample collection tube according to claim 1, characterized in that: The inner end of the connecting pin (407) is tapered, the cross-section of the connecting rod (408) is U-shaped, and the sealing sleeve (2) has guide holes (5) integrally provided on the left and right sides inside.

4. The anti-contamination nucleic acid sample collection tube according to claim 3, characterized in that: The guide hole (5) is a through hole design. The guide hole (5) is sleeved on the outside of the slide rod (406). A sealing plate (6) is fixedly sleeved on the outside of the slide rod (406). The inner side of the sealing plate (6) and the outer wall of the sealing sleeve (2) are designed to fit together.

5. The anti-contamination nucleic acid sample collection tube according to claim 1, characterized in that: The tube body (1) has a relief hole (7) integrally provided on the left and right sides inside. The relief hole (7) is a through hole design. The width of the relief hole (7) in the side view cross section is greater than the outer diameter of the connecting pin (407).

6. The anti-contamination nucleic acid sample collection tube according to claim 1, characterized in that: The bottom of the slide bar (406) is fixedly provided with a first spring (8), and the end of the first spring (8) away from the slide bar (406) is fixedly connected to the sealing sleeve (2).

7. The anti-contamination nucleic acid sample collection tube according to claim 1, characterized in that: The top left and right sides of the connecting plate (402) are fixedly provided with second springs (9), and the end of the second spring (9) away from the connecting plate (402) is fixedly connected to the outer wall of the wedge block (404).

8. The anti-contamination nucleic acid sample collection tube according to claim 1, characterized in that: The sealing sleeve (2) has a sealing cover (10) on the top left side via an adapter and on the right side via a snap fastener. The sealing cover (10) has an integrally formed relief groove (11) inside.

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