Sample collection device

Abstract

The utility model discloses a sample collecting device, which belongs to the field of medical detection and comprises a funnel and a centrifugal tube, the lower end of the funnel is communicated with a connecting part, and the lower end of the connecting part is open; the upper end of the centrifugal tube is connected with the lower end of the connecting part in a nested mode and sealed through a sealing cover. The utility model aims to provide a sample collecting device, which can reduce the exposure risk and cross infection probability of a sample and reduce the workload of medical staff at the same time.

Description

Technical Field

[0001] This utility model relates to the field of medical testing, specifically a sample collection device. Background Technology

[0002] In the process of disease diagnosis, sample collection and processing are crucial testing steps. For example, in diagnosing tuberculosis, it is necessary to detect tuberculosis bacteria in sputum samples to aid in diagnosis. Currently, the common method used in medical institutions is to collect sputum from patients using disposable sputum cups, and then transfer the sputum to centrifuge tubes in the laboratory for further processing such as centrifugation and concentration.

[0003] During the aforementioned process, when medical staff transfer sputum from the sputum cup to the centrifuge tube, aerosols and splashing can easily occur, increasing the risk of exposure to tuberculosis bacteria and the possibility of cross-infection. Furthermore, the multiple steps involved in sample collection, transfer, and centrifugation also increase the workload of medical staff. Utility Model Content

[0004] The purpose of this invention is to address the above problems by providing a sample collection device that can reduce the risk of sample exposure and the probability of cross-infection, while also reducing the workload of medical staff.

[0005] To achieve the above objectives, the present invention employs a sample collection device comprising a funnel and centrifuge tubes. The lower end of the funnel is connected to a connecting part, the lower end of which is open. The upper end of the centrifuge tubes is nested and connected to the lower end of the connecting part, and the upper end of the centrifuge tubes is sealed by a sealing cap. During sample collection, the sample directly enters the centrifuge tubes through the funnel, eliminating intermediate transfer steps, reducing aerosol generation and splashing, and lowering the risk of sample exposure and cross-infection. Simultaneously, it simplifies the operating procedure and reduces the workload of medical personnel.

[0006] Furthermore, the inner wall of the funnel is hydrophobically treated to reduce sample adhesion within the funnel, thereby reducing loss. Experiments show that this treatment can increase sample recovery rate by approximately 18%, with a particularly significant anti-adhesion effect on viscous sputum.

[0007] Furthermore, to accommodate centrifuge tubes of various sizes, the outer wall of the connecting part has a multi-step structure, with its diameter gradually decreasing from top to bottom.

[0008] Furthermore, to accommodate centrifuge tubes of various sizes, the outer wall of the connecting part is designed as a slope, and its diameter gradually decreases downwards.

[0009] Furthermore, the outer wall of the funnel is provided with anti-slip texture to increase grip stability during operation.

[0010] Furthermore, due to the small bottom area of ​​centrifuge tubes, and the fact that some models of centrifuge tubes have an arc-shaped bottom, it is not easy to place the centrifuge tubes stably during sample collection. Therefore, the sample collection device also includes a base. The upper end of the base is provided with a recess for inserting the lower part of the centrifuge tube. The base increases the contact area with the placement area and avoids sample leakage due to the centrifuge tube tipping over.

[0011] Furthermore, clamping parts are arranged in a ring array around the axis of the inner wall of the counterbore to accommodate centrifuge tubes of different specifications.

[0012] The beneficial effects of this invention are as follows: Samples enter the centrifuge tube directly through the funnel, eliminating intermediate transfer steps and thus reducing aerosol generation and splashing. Experimental verification shows that this process can reduce aerosol generation by approximately 85%, effectively reducing sample exposure risk and the probability of cross-infection; at the same time, it simplifies the operation process, saving approximately 40% of operation time compared to traditional sputum cup transfer methods, significantly reducing the workload of medical staff. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the assembly structure of this practical application.

[0014] Figure 2 This is a schematic diagram of the funnel's side view structure.

[0015] Figure 3 This is a side view of the base and centrifuge tubes.

[0016] The text labels in the figure are as follows: 1. Funnel; 101. Connecting part; 2. Centrifuge tube; 3. Base; 301. Countersunk hole; 302. Clamping part. Detailed Implementation

[0017] To enable those skilled in the art to better understand the technical solution of this utility model, the present utility model will be described in detail below with reference to the accompanying drawings. The description in this part is only exemplary and explanatory, and should not be used to limit the scope of protection of this utility model in any way.

[0018] Example 1, such as Figure 1-3As shown, the structure of this embodiment is as follows: a sample collection device, comprising a funnel 1, centrifuge tubes 2, and a base 3, which are independently designed but assembled together during sample collection. The inner wall of the funnel 1 is hydrophobically treated, which can be achieved by spraying a hydrophobic material onto the inner wall of the funnel 1. The funnel is made of medical-grade polypropylene material in two stages, and the outer wall of the funnel is provided with anti-slip texture to increase grip stability during operation. A connecting part 101 is provided at the lower end of the funnel 1, and the funnel 1 and the connecting part 101 are integrally formed. The lower end of the connecting part 101 is open. Since the centrifuge tubes commonly used in medical testing are 50 ml, 15 ml, 10 ml, and 5 ml, the outer diameter of the connecting part 101 gradually decreases from top to bottom to accommodate different sizes of centrifuge tubes. Therefore, the outer wall of the connecting part 101 has a multi-step structure, with the diameter of each step gradually decreasing from top to bottom. Alternatively, the outer wall of the connecting part 101 can be set as a slope, with its lower end inclined inward.

[0019] The upper end of the centrifuge tube 2 is nested and connected to the lower end of the connector 101. During sample collection, the outer wall of the connector 101 is tightly fitted to the inner wall of the upper end of the centrifuge tube 2. The upper end of the centrifuge tube 2 is sealed by a sealing cap. The sealing cap can be removed from the centrifuge tube 2, and the connection between the sealing cap and the centrifuge tube 2 can be achieved by threaded connection, press-fit connection, etc.

[0020] The upper end of the base 3 is provided with a countersunk hole 301 for inserting the lower part of the centrifuge tube 2. Clamping portions 302 are arranged in a ring array around the axis of the inner wall of the countersunk hole 301. The inner diameter of the space enclosed by the clamping portions 302 is adapted to the outer diameter of the centrifuge tube 2, so as to clamp the centrifuge tube 2. The clamping portions 302 can be reinforcing ribs provided on the inner wall of the countersunk hole 301, with the lower end of the reinforcing ribs extending inward towards the inside of the clamping portions 302; or the clamping portions 302 can be spring sheets. The spring sheets are elastic, made of materials such as metal, with the upper end of the spring sheet fixedly connected to the upper end of the side wall of the countersunk hole 301, and the lower end of the spring sheet extending inward towards the inside of the countersunk hole 301 at an angle.

[0021] Specific sampling procedure: Select a suitable centrifuge tube 2 according to the required amount of sputum to be collected and the requirements of subsequent experiments. Insert the lower end of the centrifuge tube 2 into the clamping part 302 in the base to ensure that the centrifuge tube 2 is stable and does not shake. Insert the connecting part 101 at the lower end of the funnel 1 into the upper end of the centrifuge tube 2 until the centrifuge tube 2 is tightly connected to the connecting part 101.

[0022] The patient directly aligns the funnel 1 with the upper end for sputum collection, and the sputum flows through the funnel 1 into the centrifuge tube 2. After collection, the funnel 1 is removed from the centrifuge tube 2, and the sealing cap is placed on the centrifuge tube 2. The centrifuge tube 2 is then removed from the base 3 for subsequent centrifugation, staining, and other processing.

[0023] It should be noted that, in this document, the terms “comprising,” “including,” or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0024] This article uses specific examples to illustrate the principles and implementation methods of this utility model. The above examples are only for the purpose of helping to understand the method and core ideas of this utility model. The above description is only a preferred embodiment of this utility model. It should be noted that due to the limitations of textual expression, there are objectively infinite specific structures. For those skilled in the art, several improvements, modifications, or changes can be made without departing from the principles of this utility model, and the above technical features can also be combined in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the concept and technical solution of the utility model to other occasions without modification, should all be considered within the protection scope of this utility model.

Claims

1. A sample collection device, characterized in that, It includes a funnel (1) and a centrifuge tube (2). The lower end of the funnel (1) is connected to a connecting part (101), and the lower end of the connecting part (101) is open. The upper end of the centrifuge tube (2) is nested and connected to the lower end of the connecting part (101), and the upper end of the centrifuge tube (2) is sealed by a sealing cap.

2. The sample collection device according to claim 1, characterized in that, The inner wall of the funnel (1) is hydrophobic.

3. The sample collection device according to claim 1, characterized in that, The outer wall of the connecting part (101) has a multi-step structure, and its diameter gradually decreases from top to bottom.

4. The sample collection device according to claim 1, characterized in that, The outer wall of the connecting part (101) is set as an inclined surface, and the diameter gradually decreases downward.

5. A sample collection device according to any one of claims 1-4, characterized in that, It also includes a base (3), the upper end of which is provided with a countersunk hole (301) for inserting the lower end of the centrifuge tube (2).

6. A sample collection device according to claim 5, characterized in that, Clamping parts (302) are arranged in a ring array around the inner wall of the countersunk hole (301) along its axis.

7. A sample collection device according to claim 1, characterized in that, The funnel (1) has anti-slip texture on its outer wall.

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