Blood layer detection device and centrifugal cup

Abstract

The utility model discloses a blood layer detection device and a centrifugal cup, which comprise a centrifugal support arranged at the bottom, a fixed cylinder extending outwards along the circumferential edge of the centrifugal support, a top cover assembly at least partially embedded in one side, far away from the centrifugal support, of the fixed cylinder, and a blood layer detection assembly sleeved in the circumferential direction of the fixed cylinder and close to one side of the top cover assembly, the blood layer detection assembly comprises a sleeving and fixing cylinder arranged in the circumferential direction of the fixing cylinder in a sleeving mode, a transverse fixing piece fixedly arranged on the side, away from the fixing cylinder, of the sleeving and fixing cylinder, an infrared light sensor arranged on the transverse fixing piece and used for detecting a blood layer, and a transverse shielding block arranged on the surrounding edge of the infrared light sensor in a sleeving mode. The blood layer detection assembly is additionally arranged on the surface of the fixed cylinder, infrared rays with the wavelength being 650 nm are emitted through the outer light sensor and accurately irradiate the preset liquid level height of the centrifugal inner cylinder, and the centrifugal liquid level detection device has the advantages of being easy and convenient to operate, low in cost, high in detection precision and the like.

Description

Technical Field

[0001] This utility model relates to the field of blood analysis technology, and in particular to a blood layer detection device and a centrifuge cup. Background Technology

[0002] In blood analysis, blood layer analysis may involve analyzing the different density layers formed in a blood sample under specific conditions (such as centrifugation). This technique can be used in a variety of blood tests and analyses.

[0003] Blood layering analysis, on the other hand, involves the formation of distinct layers in a test tube due to the different densities of blood components during centrifugation. This layering phenomenon can be used to analyze the proportions and states of different components in the blood. For example, in routine blood tests, doctors may observe the layering of blood after centrifugation to make a preliminary assessment of a patient's blood condition. However, this observation is usually qualitative and requires the integration of other quantitative testing methods for accurate diagnosis.

[0004] The computational complexity of current blood layer detection devices leads to high computational complexity for certain deep learning methods, such as fully connected conditional random fields (CRF), when handling long-range pixel interactions. This can affect the performance of real-time blood layer recognition systems. Secondly, deep learning models typically require large amounts of labeled data for training, and a lack of supervised datasets limits model performance. Furthermore, the models have limited generalization ability across different datasets, potentially leading to errors in practical applications. Deep learning-based vision sensors typically require high-performance computing resources and complex algorithms, which can increase system cost and technical barriers. Utility Model Content

[0005] Therefore, the purpose of this utility model is to provide a blood layer detection device and centrifuge cup, which aims to solve the problems that the current blood layer detection devices are relatively complicated to operate and have high operating costs.

[0006] The present invention provides a blood layer detection device, comprising a centrifugal support at the bottom, a fixed cylinder extending outward along the circumferential edge of the centrifugal support, a top cover assembly at least partially embedded in the fixed cylinder on the side away from the centrifugal support, and a blood layer detection assembly fitted around the fixed cylinder and close to the top cover assembly.

[0007] The blood layer detection assembly includes a sleeve sleeve fitted around the fixed cylinder, a transverse fixing member fixedly disposed on the side of the sleeve sleeve away from the fixed cylinder, an infrared light sensor for detecting blood layer disposed on the transverse fixing member, and a transverse blocking block fitted around the edge of the infrared light sensor.

[0008] The aforementioned method, by adding a blood layer detection assembly to the surface of the fixed cylinder and using an external light sensor to emit infrared light with a wavelength of 650nm, accurately illuminates the preset liquid level in the centrifuge inner cylinder. This method offers advantages such as ease of operation, low cost, and high detection accuracy, making it widely applicable in various clinical and research settings. By adopting this centrifuge cup blood layer detection method, medical institutions and researchers can process and analyze blood samples more efficiently, thereby improving the efficiency and quality of diagnosis and research, and solving the problems of currently complex operation and high cost of blood layer detection devices.

[0009] In addition, the blood layer detection device according to the embodiments of this utility model may also have the following additional technical features:

[0010] Furthermore, the centrifugal support includes a sleeve extending outward along the fixed cylinder toward the side away from the top cover assembly, a centrifugal inner cylinder movably disposed inside the sleeve and at least partially accommodated within the fixed cylinder, and at least two positioning rods extending along the sleeve in a direction away from the fixed cylinder.

[0011] Furthermore, the fixed cylinder, the sleeve cylinder, and the search positioning rod are fixedly connected.

[0012] Furthermore, the top cover assembly includes at least two sleeve covers movably disposed on the side of the fixed cylinder away from the centrifugal support, and a locking assembly disposed between the two sleeve covers.

[0013] Furthermore, the locking assembly includes a locking shaft disposed on one side between the two sleeve covers, a second locking buckle disposed on the other side between the two sleeve covers, and a first locking buckle disposed between the two sleeve covers.

[0014] Furthermore, the locking shaft is connected to the two sleeve covers, and the locking shaft drives the two sleeve covers to unfold relative to each other.

[0015] In addition, this utility model also provides a centrifuge cup, including a blood layer detection device disposed on the centrifuge cup. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a blood layer detection device proposed in an embodiment of this utility model;

[0017] Figure 2 This is a schematic diagram of the flipping structure of a blood layer detection device proposed in an embodiment of this utility model;

[0018] Figure 3 This is a partial top view of a blood layer detection device proposed in an embodiment of this utility model;

[0019] Figure 4 This is a partial cross-sectional structural diagram of a blood layer detection device proposed in an embodiment of this utility model.

[0020] Explanation of key component symbols:

[0021]

[0022] The following detailed description, in conjunction with the accompanying drawings, will further illustrate this utility model. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more complete description will be given below with reference to the accompanying drawings. Several embodiments of this utility model are shown in the drawings. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that the disclosure of this utility model will be more thorough and complete.

[0024] It should be noted that when a component is said to be "fixed to" another component, it can be directly on the other component or there may be an intervening component. When a component is said to be "connected to" another component, it can be directly connected to the other component or there may be an intervening component. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0025] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0026] Please see Figures 1 to 3The image shows a blood layer detection device according to an embodiment of the present invention. It includes a centrifugal support 1 at the bottom, a fixed cylinder 2 extending outward from the circumferential edge of the centrifugal support 1, a top cover assembly 3 at least partially embedded in the fixed cylinder 2 on the side away from the centrifugal support 1, and a blood layer detection assembly 4 fitted around the fixed cylinder 2 and close to the top cover assembly 3. The blood layer detection assembly 4 includes a sleeve 41 fitted around the fixed cylinder 2, a transverse fixing member 42 fixedly installed on the side of the sleeve 41 away from the fixed cylinder 2, an infrared light sensor 43 for detecting blood layer on the transverse fixing member 42, and a transverse blocking block 44 fitted around the edge of the infrared light sensor 43. The transverse blocking block 44 can effectively prevent scattering of infrared light when it passes through the infrared light sensor 43, while ensuring the focusing quality of the infrared light sensor 43 and improving the accuracy of subsequent blood layer detection. In addition, the infrared light sensor 43 is also called a reflective infrared light sensor, which has properties such as reflection, refraction, scattering, interference, and absorption. Any substance with a certain temperature (above absolute zero) radiates infrared radiation. Infrared light sensors work on the principle of emitting and receiving infrared light. They utilize the physical effects (most often electrical effects) of the interaction between infrared radiation and matter to detect infrared radiation. When the transmitter emits infrared light of a specific wavelength, if it encounters an obstacle, some or all of the light will be reflected back and captured by the receiver. Based on changes in the received signal strength, the presence or approximate distance of the target can be determined.

[0027] Furthermore, the centrifuge support 1 includes a sleeve 11 extending outward from the fixed cylinder 2 toward the side away from the top cover assembly 3, a centrifuge inner cylinder 12 movably disposed inside the sleeve 11 and at least partially housed within the fixed cylinder 2, wherein the centrifuge inner cylinder 12 is used to hold blood and is movably connected to the fixed cylinder 2, and at least two positioning rods 13 extending outward from the sleeve 11 toward the side away from the fixed cylinder 2. The fixed cylinder 2, the sleeve 11, and the positioning rods 13 are fixedly connected. The top cover assembly 3 includes at least two sleeve covers 31 movably disposed on the side of the fixed cylinder 2 away from the centrifuge support 1, and a locking assembly disposed between the two sleeve covers 31. The locking assembly includes a locking shaft 33 disposed on one side between the two sleeve covers 31, a second locking buckle 34 disposed on the other side between the two sleeve covers 31, and a first locking buckle 32 disposed in the middle of the two sleeve covers 31. The locking shaft 33 is connected to the two sleeve covers 31, and the locking shaft 33 drives the two sleeve covers 31 to rotate around it and unfold relative to each other.

[0028] In specific implementation, the operator first adds test blood to the centrifuge inner cylinder 11. In some optional embodiments, a liquid injection hole can be opened on the first locking buckle 32 on the centrifuge inner cylinder 12 or on the side near the sleeve cylinder 11. The operator can then inject test blood into the centrifuge inner cylinder 12 through the liquid injection hole. After that, the centrifuge inner cylinder 11 with test blood is filled into the fixed cylinder 2, and the sleeve cover 31 is closed by controlling the locking shaft 33. Then, the first locking buckle 32 and the second locking buckle 34 are flipped toward the sleeve cover 31 in sequence to fix the sleeve cover 31. Then, the centrifuge support 1 is placed into the centrifuge that is compatible with it to carry out the blood centrifugation operation.

[0029] Furthermore, after the centrifugation operation is completed, the infrared light sensor 43 is electrically connected to an external device to ensure signal transmission and processing. The electrical connection includes, but is not limited to, radio frequency connection and USB line connection. In some optional embodiments, the transverse fixing member 42 and the transverse shielding block 44 are made of AL6061 material. This material has good mechanical properties and corrosion resistance, and is suitable for connection to the outer wall of the fixed cylinder 2. The connection method can be by thread engagement. These two components are firmly fixed to the well wall of the centrifuge, that is, the outer surface of the fixed cylinder 2. It should be noted that, in order to further improve the light transmission effect and light sensing accuracy of the subsequent infrared light sensor 43, a reflector made of homogeneous high-purity quartz glass with a size of 20.80*14.80mm and a thickness of 1mm is also embedded in the transverse shielding block 44. Quartz glass has excellent light transmission performance and chemical stability, which can ensure accurate reflection of infrared rays, thereby improving the accuracy of detection.

[0030] Next, the infrared light sensor 43 is installed on the horizontal fixing member 42 at a preset specific angle. It should be noted that the installation angle of the infrared light sensor 43 can be determined based on the blood level height inside the centrifuge inner cylinder 12. Then, the infrared light sensor 43 emits infrared rays with a wavelength of 650nm. These infrared rays pass through a quartz glass reflector and accurately illuminate the preset liquid level height in the centrifuge inner cylinder 12. During this process, due to the difference in transmittance of near-infrared light to different materials, the properties of serum and blood cells in the centrifuged blood sample are quite different. Serum appears translucent pale yellow, while blood cells appear opaque dark red. Specifically:

[0031] The absorption spectrum of blood is primarily influenced by hemoglobin and its different forms, including oxyhemoglobin and deoxyhemoglobin. Within the visible light wavelength range, the absorption spectrum of blood exhibits distinct characteristics, particularly in the 400-600 nm band, where the absorption peaks of oxyhemoglobin and deoxyhemoglobin are especially strong. Specifically, at 415 nm, there is a maximum absorption peak known as the Soret peak or γ band, which is due to the specific absorption characteristics of hemoglobin. Between 500 nm and 600 nm, two weaker and broader absorption bands appear in the blood absorption spectrum; these are called the β band and the α band, respectively.

[0032] Furthermore, in the ultraviolet wavelength region, the absorption spectrum of blood also exhibits some characteristic absorption peaks. For example, at specific wavelengths such as 272nm, 340nm, 417nm, 540nm, and 576nm, obvious absorption peaks can be observed in the absorption spectrum of blood. The positions of these absorption peaks are relatively fixed and are independent of the blood concentration, but their intensity increases accordingly with the increase of blood concentration.

[0033] In the near-infrared wavelength region, the absorption characteristics of blood are also affected by water and other components. In the 1170 to 1350 nm wavelength range, the absorption coefficient of blood is almost twice that of water, indicating that in this band, the absorption characteristics of blood are mainly determined by hemoglobin. However, in the wavelength range above 1350 nm, the absorption coefficient of blood is similar to that of water, indicating that the absorption effect of water increases significantly in this band, having a significant impact on the absorption characteristics of blood. Therefore, in the near-infrared region, the absorption characteristics of blood are affected not only by hemoglobin but also by the combined effects of water and other components.

[0034] Finally, by utilizing the different absorption rates of infrared light by blood cells and serum at varying concentrations, the intensity of the infrared light reflected back to the sensor will also differ. Analyzing these reflected infrared rays yields two distinct "0" and "1" signals at the photoelectric sensor receiver. These signals reflect the distribution of different components in the blood sample, allowing for accurate determination of the location of blood layer divisions. This centrifuge cup blood layer detection technology, based on reflective infrared recognition, not only improves detection accuracy and efficiency but also provides more reliable data support for clinical diagnosis and scientific research. By precisely acquiring the thickness and interface location information of each layer in the blood cup centrifugation layer, this technology can output stable signals, providing a solid foundation for subsequent analysis and processing.

[0035] In summary, by adding a blood layer detection assembly 4 to the surface of the fixed cylinder 2, and using an external light sensor 43 to emit infrared light with a wavelength of 650nm to accurately illuminate the preset liquid level height in the centrifuge inner cylinder 12, this method offers advantages such as simple operation, low cost, and high detection accuracy, making it widely applicable in various clinical and research settings. By adopting this centrifuge cup blood layer detection method, medical institutions and researchers can process and analyze blood samples more efficiently, thereby improving the efficiency and quality of diagnosis and research, and solving the problems of complex operation and high cost of current blood layer detection devices.

[0036] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0037] The above embodiments only illustrate several implementation methods of this utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A blood layer detection device characterized by comprising: The blood layer detection device comprises a centrifugal support provided at the bottom, a fixed cylinder extending outward along the circumferential edge of the centrifugal support, a top cover assembly at least partially embedded in the fixed cylinder away from the centrifugal support, and a blood layer detection assembly sleeved on the circumferential side of the fixed cylinder and close to the top cover assembly. The blood layer detection assembly comprises a sleeve fixed cylinder sleeved on the circumferential side of the fixed cylinder, a transverse fixing piece fixedly arranged on the side of the sleeve fixed cylinder away from the fixed cylinder, an infrared light sensor arranged on the transverse fixing piece for detecting blood layer, and a transverse shielding block sleeved on the edge of the infrared light sensor.

2. The blood layer detecting apparatus according to claim 1, characterized by The centrifugal support comprises a sleeved cylinder extending outward along the fixed cylinder away from the top cover assembly, a centrifugal inner cylinder movably arranged on the inside of the sleeved cylinder and at least partially accommodated in the fixed cylinder, and at least two positioning rods extending outward along the sleeved cylinder away from the fixed cylinder.

3. The blood layer detecting apparatus according to claim 2, characterized by The fixed cylinder, the sleeved cylinder and the search positioning rod are fixedly connected.

4. The blood layer detecting apparatus according to claim 1, wherein The top cover assembly comprises at least two sleeved covers movably arranged on the side of the fixed cylinder away from the centrifugal support, and a locking assembly arranged between the two sleeved covers.

5. The blood layer detecting apparatus according to claim 4, wherein The locking assembly comprises a locking shaft arranged on one side between the two sleeved covers, a second locking buckle arranged on the other side between the two sleeved covers, and a first locking buckle arranged between the two sleeved covers.

6. The blood layer detecting apparatus according to claim 5, wherein The locking shaft is connected with the two sleeved covers, and the two sleeved covers are relatively unfolded by the locking shaft.

7. A centrifugal cup characterized by: The blood layer detection device comprises a centrifugal support provided at the bottom, a fixed cylinder extending outward along the circumferential edge of the centrifugal support, a top cover assembly at least partially embedded in the fixed cylinder away from the centrifugal support, and a blood layer detection assembly sleeved on the circumferential side of the fixed cylinder and close to the top cover assembly. The blood layer detection assembly comprises a sleeve fixed cylinder sleeved on the circumferential side of the fixed cylinder, a transverse fixing piece fixedly arranged on the side of the sleeve fixed cylinder away from the fixed cylinder, an infrared light sensor arranged on the transverse fixing piece for detecting blood layer, and a transverse shielding block sleeved on the edge of the infrared light sensor.

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