Centrifugal tube for medical examination
By designing a centrifugal tube structure including plastic outer tube, glass inner tube and sealed cover, the problem of existing centrifugal tubes being prone to overflow is solved, achieving higher experimental data accuracy and lower contamination risk.
Patent Information
- Application Number
- CN202420644140.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-03-29
- Publication Date
- 2025-03-14
- Estimated Expiration
- 2034-03-29
AI Technical Summary
Existing centrifuge tubes are prone to overflow during use, resulting in inaccurate experimental data and may cause sample and environmental contamination.
A centrifugal tube structure including a plastic outer tube, a glass inner tube and a sealing cover is designed. The position of the glass inner tube is defined by the design of the snap-up rib and bayonet, and the sealing property is improved through the projection of the sealing cover and the rubber material to prevent detection substances from overflowing.
It effectively prevents the detection substance from overflowing when rotating, improves the accuracy of experimental data, avoids sample and environment pollution, and extends the service life of the glass inner tube.
Smart Images
Figure CN222606418U_ABST
Abstract
Description
[Technical field]
[0001] The utility model mainly relates to a centrifuge tube for medical examination. [Background technology]
[0002] Nowadays, centrifuge tubes are widely used, especially in life sciences, such as biochemistry, molecular biology, cell biology, microbiology, etc. In education and scientific experiments, centrifuge tubes are widely used for sample preservation, chemical reactions, biological extraction and separation, strain preservation, cell and microbial culture, genetic material expansion, etc.
[0003] In hospitals, centrifuge tubes are also widely used for the storage and analysis of biological and chemical samples. Current centrifuge tube samples are prone to overflow during use, resulting in inaccurate experimental data, and also causing contamination of samples and the environment. Substances in the external environment are also prone to enter the centrifuge tube and cause sample contamination. In view of this, we have improved the structure of the centrifuge tube and proposed a new structural method. [Contents of the utility model]
[0004] In order to solve at least one of the above problems, the utility model proposes a new structural solution. The centrifuge tube for medical examination adopts the following technical solution:
[0005] A centrifuge tube for medical examination, comprising a plastic outer tube, a glass inner tube and a sealing cover;
[0006] The plastic outer tube has a first cavity, the glass inner tube has a second cavity, a clamping rib is provided in the first cavity, a clamping notch is provided at the bottom of the glass inner tube, and the clamping rib is connected with the clamping notch to limit the position of the glass inner tube in the plastic outer tube;
[0007] The sealing cover is provided with a convex part, the glass inner tube has a pipe opening communicating with the second cavity, and the sealing cover is connected to the plastic outer tube so that the convex part is embedded in the pipe opening to seal the pipe opening through the convex part.
[0008] Preferably, the positioning ribs are composed of a plurality of ribs arranged circumferentially at the bottom of the second cavity, the ribs protrude relative to the wall of the first cavity; the bayonet is arranged circumferentially at the bottom of the glass inner tube, and the position of the bayonet corresponds to the position of the rib.
[0009] Preferably, the diameter of the first cavity is greater than the diameter of the second cavity, and the depth of the first cavity is greater than the depth of the glass inner tube.
[0010] Preferably, the outer wall of the plastic outer tube at the tube opening is provided with threads, the convex portion protrudes from the inner side of the sealing cover, and a gap is provided between the convex portion and the inner side wall of the sealing cover for the wall portion of the plastic outer tube to be inserted.
[0011] Preferably, the outer side wall of the sealing cover is provided with anti-slip threads.
[0012] Compared with the background technology, the utility model has the following beneficial effects:
[0013] The utility model provides a centrifugal tube for medical examination, which comprises a plastic outer tube, a glass inner tube and a sealing cover. The detection material preferably adopts the glass inner tube. After the detection material is placed in the second cavity of the glass inner tube, the glass inner tube is placed in the first cavity, so that the clamping ribs are engaged with the bayonet, so as to limit the glass inner tube in the plastic outer tube, and prevent the glass inner tube and the plastic outer tube from rotating relative to each other when rotating at the same time; in order to prevent the detection material in the glass inner tube from overflowing during rotation, the plastic outer tube is provided with a sealing cover, and when the sealing cover is connected to the plastic outer tube, the convex part will be embedded in the pipe mouth of the second cavity, the diameter of the convex part matches the diameter of the pipe mouth of the second cavity, and the material of the convex part is rubber to improve the sealing performance; at the same time, the wall of the plastic outer tube is inserted into the gap between the convex part and the inner side wall of the sealing cover, which can further prevent the detection material from leaking out of the outside of the plastic outer tube and avoid environmental pollution. It has the advantages of simple structure, compact matching, reasonable design, etc.; therefore, it is a product with superior performance in both technical and economic performance.
Brief Description of the Drawings
[0014] Figure 1 A schematic diagram of a centrifuge tube for medical testing in a preferred embodiment of the utility model;
[0015] Figure 2 This is a schematic diagram of an exploded view of a centrifuge tube for medical testing in a preferred embodiment of the present invention. [Specific implementation method]
[0016] The embodiments of the present invention are described in detail below. The embodiments are shown in the accompanying drawings, wherein the same or similar numbers throughout represent the same or similar elements or elements with the same or similar functions.
[0017] In the present invention, unless otherwise specified and limited, the terms "assembly", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can also be a mechanical connection; it can be directly connected, or it can be connected through an intermediate medium, or the two elements can be internally connected. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0018] The following is a further description of the specific implementation of the utility model in conjunction with the drawings of the specification, so that the technical solution and its beneficial effects of the utility model are clearer and more explicit. The following description of the embodiments with reference to the drawings is exemplary and intended to explain the utility model, but cannot be understood as limiting the utility model.
[0019] The preferred embodiment provided by the utility model is as follows: Figure 1 and Figure 2 As shown, a centrifuge tube for medical examination comprises a plastic outer tube 1, a glass inner tube 2 and a sealing cover 3; the plastic outer tube 1 has a first cavity 11, the glass inner tube 2 has a second cavity 21, a retaining rib 12 is arranged in the first cavity 11, a retaining notch 22 is arranged at the bottom of the glass inner tube 2, the retaining rib 12 is connected with the retaining notch 22 to limit the position of the glass inner tube 2 in the plastic outer tube 1; further, the retaining rib 12 is composed of a plurality of retaining ribs 13 arranged in a circle at the bottom of the second cavity 21, further, the number of retaining ribs is 4, arranged in a cross shape, and the retaining ribs 13 are raised relative to the wall surface of the first cavity 11; the retaining notch 22 is arranged in a circle at the bottom of the glass inner tube 2, and the position of the retaining notch 22 corresponds to the position of the retaining rib 13.
[0020] The sealing cover 3 is provided with a convex portion 31, and the glass inner tube 2 has a tube opening communicating with the second cavity 21. The sealing cover 3 is connected to the plastic outer tube 1 so that the convex portion 31 is embedded in the tube opening to seal the tube opening through the convex portion 31. The diameter of the first cavity 11 is greater than the diameter of the second cavity 21, and the depth of the first cavity 11 is greater than the depth of the glass inner tube 2, so that the glass inner tube 2 can be completely loaded into the plastic outer tube 1.
[0021] The outer wall of the plastic outer tube 1 at the tube mouth is provided with a thread 14, the protrusion 31 protrudes from the inner side of the sealing cover 3, and there is a gap 32 between the protrusion 31 and the inner wall of the sealing cover 3 for the wall of the plastic outer tube 1 to be inserted; the outer wall of the sealing cover 3 is provided with an anti-slip thread to facilitate twisting off the bottle cap.
[0022] In order to prevent the centrifuge tube from easily overflowing during use, the present structure proposes a centrifuge tube for medical examination, which comprises a plastic outer tube 1, a glass inner tube 2 and a sealing cover 3. The test substance preferably adopts the glass inner tube 2. After the test substance is placed in the second cavity 21 of the glass inner tube 2, the glass inner tube 2 is placed in the first cavity 11, so that the clamping rib 12 is engaged with the clamping mouth 22, so as to limit the glass inner tube 2 in the plastic outer tube 1, and prevent the glass inner tube 2 and the plastic outer tube 1 from rotating relative to each other when rotating at the same time; in order to prevent the test substance in the glass inner tube 2 from overflowing during rotation, the plastic outer tube 1 is provided with a sealing cover 3, and when the sealing cover 3 is connected to the plastic outer tube 1, the convex portion 31 will be embedded in the pipe mouth of the second cavity 21, the diameter of the convex portion 31 matches the pipe mouth diameter of the second cavity 21, and the material of the convex portion 31 is rubber to improve the sealing performance; at the same time, the wall of the plastic outer tube 1 is inserted into the gap 32 between the convex portion 31 and the inner side wall of the sealing cover 3, which can further prevent the test substance from leaking out of the outside of the plastic outer tube 1 and avoid environmental pollution.
[0023] Furthermore, this solution adopts a double-tube structure. The glass centrifuge tube is suitable for processing some samples that are corrosive to plastics. The glass centrifuge tube is fragile and needs to be used with caution, otherwise it may cause the centrifuge tube to break. The plastic centrifuge tube is light, not easy to break, and more convenient to use. Although the plastic centrifuge tube is transparent or translucent, the centrifugation of the sample can be visually seen, but it is relatively easy to deform and has poor corrosion resistance to organic solvents, so the service life is short. Therefore, different tube bodies can be selected for different test substances. The plastic outer tube 1 of this structure can be used independently, and the glass inner tube 2 needs to be used in conjunction with the plastic outer tube 1. The plastic outer tube 1 serves as a protective layer for the glass inner tube 2, which can effectively protect the glass inner tube 2 from damage and increase the service life.
[0024] In the description of the specification, the description with reference to the terms "one embodiment", "preferably", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the utility model, and the schematic expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner.
[0025] Through the description of the above structure and principle, technicians in the relevant technical field should understand that the present invention is not limited to the above-mentioned specific implementation methods. Improvements and substitutions based on the present invention using the known technology in the field all fall within the protection scope of the present invention and should be defined by the claims.
Claims
1. A centrifuge tube for medical examination, characterized in that: It comprises a plastic outer tube, a glass inner tube and a sealing cover. The plastic outer tube has a first cavity, the glass inner tube has a second cavity, a clamping rib is arranged in the first cavity, a clamping notch is arranged at the bottom of the glass inner tube, and the clamping rib is connected with the clamping notch to limit the position of the glass inner tube in the plastic outer tube. The sealing cover is provided with a convex part, the glass inner tube has a pipe opening communicating with the second cavity, and the sealing cover is connected to the plastic outer tube so that the convex part is embedded in the pipe opening to seal the pipe opening through the convex part.
2. A centrifuge tube for medical examination according to claim 1, characterized in that: The clamping ribs are arranged circumferentially at the bottom of the second cavity, and the clamping ribs are protruding relative to the wall of the first cavity; the bayonet is arranged circumferentially at the bottom of the glass inner tube, and the position of the bayonet corresponds to the position of the clamp.
3. A centrifuge tube for medical examination according to claim 1, characterized in that: The diameter of the first cavity is greater than the diameter of the second cavity, and the depth of the first cavity is greater than the depth of the glass inner tube.
4. A centrifuge tube for medical examination according to claim 1, characterized in that: The outer wall of the pipe opening of the plastic outer tube is provided with threads, the convex part protrudes from the inner side of the sealing cover, and a gap is provided between the convex part and the inner side wall of the sealing cover for the wall part of the plastic outer tube to be inserted.
5. A centrifuge tube for medical examination according to claim 1, characterized in that: The outer side wall of the sealing cover is provided with anti-slip threads.