Veterinary device for preventing hemolysis of blood sample

Abstract

The utility model discloses a veterinary device for preventing hemolysis of a blood sample. The veterinary device comprises an upper cover, a working cavity, a temperature control cavity and a heat dissipation cavity from top to bottom, a test tube rack is arranged in the working cavity and provided with a conical wall face, holes are formed in the circumferential direction of the test tube rack for insertion of test tubes, and the test tubes are disinfected through irradiation of ultraviolet lamps installed on the upper cover in the circumferential direction. The bottom of the test tube rack is connected with a motor fixed in the temperature control cavity and is driven by the motor to rotate to centrifuge animal blood in the test tube. Cooling fins are installed at the corresponding positions in the temperature control cavity and the cooling cavity and connected through Peltier. The Peltier is combined with the air inlet and outlet fan installed in the temperature control cavity, internal air circulation is achieved, and hot air or cold air generated by the Peltier in the temperature control cavity continuously circulates into the working cavity. A heat dissipation fan is further mounted in the heat dissipation cavity, and heat dissipation holes are formed in the side wall; air cooling heat dissipation is carried out on the cooling fins, and air is blown to the outside through the heat dissipation holes. The utility model can effectively solve the risks of animal blood sample hemolysis and pathogen carrying on the surface layer of the sample.

Description

Technical Field

[0001] The utility model belongs to the field of animal blood sample processing, in particular to a device for preventing blood samples from hemolysis for animals. Background Art

[0002] The difficulties faced in the veterinary clinical sampling process are often great, especially in large-scale sampling and in bad weather. Animal serum is often required in the veterinary laboratory testing process, and the quality of the sample is often related to the accuracy of the experimental results. The factor that affects the hemolysis of the sample is mainly temperature control. To this day, the sampling equipment of grassroots veterinary sampling personnel is simple, and they still use plastic tubes to collect and place them on test tube racks.

[0003] Since animal sampling is difficult and time-consuming, long-term storage and exposure to low or high temperatures will greatly increase the chance of hemolysis in the final samples submitted for inspection, and factors such as animal restraint will make re-collection more difficult, which undoubtedly increases the workload of grassroots veterinary staff.

[0004] In recent years, laboratories have paid more and more attention to biosafety. Some pathogens have strong tolerance to the environment. Therefore, if samples are sent to experiments without treatment, there is a risk of infecting people and contaminating the laboratory environment. Utility Model Content

[0005] In view of the above problems, the utility model proposes a device for preventing hemolysis of animal blood samples, which effectively solves the risks of hemolysis of animal blood samples and pathogens carried on the surface of the samples.

[0006] The utility model discloses a device for preventing veterinary blood sample from hemolysis, which comprises a top cover, a working chamber, a temperature control chamber and a heat dissipation chamber from top to bottom.

[0007] The top cover is hinged to the edge of the working chamber, the inner wall is covered with reflective film, and ultraviolet LED light strips are installed circumferentially, with the irradiation direction facing the reflective film to achieve a diffuse reflection effect, thereby disinfecting each position of the test tube in the working chamber.

[0008] The bottom of the test tube rack in the working chamber is connected to the motor output shaft through a connecting frame; the motor is fixed in the temperature control chamber; the motor can drive the test tube rack to rotate, centrifuge the animal blood in the test tube, and quickly obtain high-quality serum.

[0009] Two heat sinks are installed at corresponding positions in the temperature control cavity and the heat dissipation cavity, and the two heat sinks form a group, with a Peltier arranged between them; the heat sink in the temperature control cavity is inserted into the temperature control cavity through the opening of the bottom surface of the temperature control cavity, and is limited by the bottom edge of the heat sink and the bottom surface of the temperature control cavity; the heat sink in the heat dissipation cavity is fixedly connected with the heat sink in the temperature control cavity and the bottom surface of the temperature control cavity through bolts, and the Peltier is clamped and fixed by two heat sinks; an air inlet fan and an air outlet fan are also arranged in the temperature control cavity, and the two are respectively embedded and fixed at the opening of the bottom surface of the working cavity; the heat energy or cold energy generated by the Peltier can be quickly transmitted to the heat sink, and the hot air or cold air in the temperature control cavity is further sucked into the working cavity through the air inlet fan; the gas in the working cavity can be blown into the temperature control cavity through the air outlet fan, so as to achieve the wind circulation effect in the working cavity.

[0010] A heat dissipation fan is installed in the heat dissipation cavity, and heat dissipation holes are arranged on the wall surface of the heat dissipation cavity; the heat dissipation fan is used to cool the heat sink and the heat is blown to the outside through the heat dissipation holes.

[0011] The advantages of the utility model are:

[0012] 1. The utility model of the veterinary device for preventing hemolysis of blood samples solves the influence of air temperature on sample hemolysis through temperature control, greatly improves sample quality, and improves the accuracy of test results.

[0013] 2. The utility model is a veterinary device for preventing hemolysis of blood samples, and is designed with a top ultraviolet irradiation structure to disinfect the sample outside the tube after sampling. This can eliminate the risk of infectious substances adhering to the outside of the tube and spreading pathogens in the laboratory, and effectively implement the requirements of the biosafety system.

[0014] 3. The veterinary device for preventing hemolysis of blood samples is more stable than the traditional sampling test tube rack, and can prevent blood from splashing due to bumpy mountain roads. It is particularly suitable for sampling in mountainous and remote areas.

[0015] 4. The veterinary device for preventing hemolysis of blood samples of the utility model can be centrifuged at a low speed. During a long sampling process, high-quality serum can be quickly obtained by centrifuging the serum in advance, which is particularly suitable for on-site rapid testing and long-distance sample delivery. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front cross-sectional view of the overall structure of the device for preventing hemolysis of blood samples for animals of the utility model;

[0017] Figure 2 The utility model is a side sectional view of the overall structure of the device for preventing hemolysis of blood samples for animals.

[0018] In the figure:

[0019] 1- heat dissipation chamber 2- temperature control chamber 3- working chamber

[0020] 4- Top cover 5- UV LED light strip 6- Test tube rack

[0021] 7-Connecting frame 8-Coupling 9-Motor

[0022] 10- heat sink 11- Peltier 12- air inlet fan

[0023] 13- outlet fan 14- cooling fan 15- single chip microcomputer

[0024] 16-Heat dissipation holes DETAILED DESCRIPTION

[0025] The present invention is further described in detail below with reference to the accompanying drawings.

[0026] The utility model discloses a device for preventing hemolysis of blood samples for animals, comprising a heat dissipation chamber 1, a temperature control chamber 2, a working chamber 3, a top cover 4, an ultraviolet LED light strip 5, a test tube rack 6, a connecting frame 7, a coupling 8, a motor 9, a heat sink 10, a Peltier 11, an air inlet fan 12, an air outlet fan 13, a heat dissipation fan 14 and a single-chip computer 15, such as Figure 1 , Figure 2 shown.

[0027] The heat dissipation chamber 1, the temperature control chamber 2, and the working chamber 3 are all cylindrical box structures with equal sizes having a bottom surface and circumferential side walls. The heat dissipation chamber 1, the temperature control chamber 2, and the working chamber 3 are coaxially arranged from bottom to top, and the ends are fixed by threaded connection to form a whole.

[0028] The top cover 4 is a hemispherical cover, hinged to the edge of the working chamber; the inner wall of the top cover is paved with a reflective film. At the same time, a ring-shaped ultraviolet LED light strip 5 is fixed to the circumferential edge of the end face of the top cover 4. The axial outer ring of the ultraviolet LED light strip 5 is flush with the outer ring of the end face of the top cover, and the irradiation direction of the ultraviolet LED light strip 5 is toward the inner wall of the top cover 4, achieving a diffuse reflection effect. As a result, the ultraviolet light is irradiated onto the reflective film on the inner wall of the top cover 4 through the ultraviolet LED light strip 5, and then diffusely reflected to various positions of the test tube in the working chamber 3 for disinfection.

[0029] The test tube rack 6 is a transparent funnel-shaped structure, located in the working chamber 3. The cone angle of the outer wall of the circumferential conical surface of the test tube rack 6 is designed to be 120 degrees, and test tube mounting holes are designed at equal angles on the circumference of the outer wall. The mounting holes are located close to the top edge of the test tube rack 6 for mounting test tubes. When installing the test tube, after the test tube is inserted into the test tube mounting hole, the test tube can slide freely until the annular boss around the mouth of the test tube fits with the inner wall of the test tube rack around the test tube mounting hole, so as to realize the positioning of the test tube on the test tube rack 6; and each test tube is at an angle of 60 degrees with the top surface of the working chamber to prevent the blood in the test tube from being thrown out when the test tube rack 6 rotates.

[0030] The connecting frame 7 is located in the working chamber, and is a columnar structure as a whole, with a groove at the center of the top, and an internal thread is designed on the inner side wall of the groove, which is used to cooperate with the external thread designed on the circumference of the outer wall of the bottom end of the test tube rack 6 to achieve a coaxial fixed connection between the connecting frame 7 and the test tube rack 6, and the direction of the internal thread of the groove at the top of the connecting frame 7 must be the same as the rotation direction of the test tube rack 6, so that the two are not easy to loosen. The bottom end of the above-mentioned connecting frame 7 passes through the coupling 8, passes through the through hole at the center of the bottom surface of the working chamber 3, and is coaxially connected to the output shaft of the motor 9.

[0031] The motor 9 is located in the temperature control chamber 2, and the body end is fixedly mounted on the bottom surface of the temperature control chamber 2. The motor 9 is used to provide rotational power for the test tube rack 6, drive the test tube rack 6 to rotate, centrifuge the animal blood in the test tube, and quickly obtain high-quality serum, which is particularly suitable for long-term outdoor sampling or long-distance delivery.

[0032] There are 4 heat sinks 10 in total; two of them are heat sinks A, and the other two are heat sinks B. Then the two heat sinks A are located in the temperature control chamber 2, respectively on the opposite sides of the motor 9. The two heat sinks B are located in the heat dissipation chamber 1, and are respectively opposite to the two heat sinks A. A Peltier 11 is arranged between the heat sinks A and B on the same side; the specific connection method is: the heat sink A is inserted into the temperature control chamber 2 through the opening of the bottom surface of the temperature control chamber 2, and is positioned by connecting the shoulder of the bottom surface of the heat sink A; the connection holes on the shoulders of the heat sinks A and B are opposite to each other, and the bolts are passed through the corresponding connection holes between the two and the connection holes opened on the bottom surface of the temperature control chamber, and then tightened and fixed with nuts. In this way, the heat sinks A and B are fixed together on the bottom surface of the temperature control chamber 2, and are respectively located on the upper and lower sides of the bottom surface of the temperature control chamber 2. At the same time, after the heat sinks A and B are tightened and fixed, the Peltier is clamped between the two.

[0033] The Peltier 11 can be converted by electric current to make one side cool or heat, while the other side heats or cools. The heat energy or cold energy generated by the Peltier 11 can be quickly transferred to the heat sink 10. Therefore, when the Peltier 11 is attached to the heat sink A and cools the heat sink A, the heat energy on the other side of the Peltier 11 can be quickly transferred to the heat sink B, which is then conducted away through the heat sink cavity, thereby preventing the Peltier from being damaged by overheating on one side.

[0034] The temperature control chamber 2 is provided with an air inlet fan 12 and an air outlet fan 13 on both sides of the motor 9, and the two are respectively embedded and fixed at the bottom opening of the working chamber 3. The hot air or cold air in the temperature control chamber 2 is sucked into the working chamber 3 through the air inlet fan 12. The gas in the working chamber 3 can be blown into the temperature control chamber 2 through the air outlet fan 13.

[0035] When the temperature of the working chamber 3 is too high, the temperature control chamber 2 is cooled by the Peltier 11, and the cold air is further transported to the working chamber 3 by the air inlet fan 12; when the temperature of the working chamber 3 is too low, the temperature control chamber 2 is heated by the Peltier 11, and the hot air is further transported to the working chamber 3 by the air inlet fan; thus, the temperature of the working chamber 3 is dynamically adjusted. The air outlet fan 13 and the air inlet fan 12 can achieve the wind circulation effect in the working chamber 3, so as to realize the continuous circulation of the hot air or cold air in the temperature control chamber 2 to the working chamber 3.

[0036] A cooling fan 14 is also installed inside the heat dissipation cavity 1, and circumferentially arranged cooling holes 16 are provided on the side wall of the heat dissipation cavity 1. The cooling fan 14 cools the heat sink B10 with air, and the air is blown to the outside through the cooling holes 16.

[0037] The air inlet fan 12 and the air outlet fan 13 are equipped with a platinum resistor for measuring temperature; the platinum resistor is connected to the single-chip microcomputer 15 through a cable. When the temperature measured by the platinum resistor is higher than 37°C, the upper surface of the Peltier 11 is cooled to quickly cool down the working chamber 2; when the temperature measured by the platinum resistor is lower than 37°C, the upper surface of the Peltier 11 is switched to heat to quickly heat up the working chamber 3. The single-chip microcomputer 15 is fixedly installed on the bottom surface of the temperature control chamber 2, and is also connected to the motor 9, the ultraviolet LED light strip 5 and the Peltier 11, and is used to control the rotation of the motor 9, control the irradiation of the ultraviolet LED light strip 5, control the cooling or heating of the Peltier 11 and measure the temperature of the platinum resistor.

[0038] The working mode of the device for preventing hemolysis of blood samples for animals of the utility model is as follows:

[0039] ①. Insert the test tube with animal blood into the through hole on the test tube rack 6.

[0040] ②. Close the top cover to seal the top surface of the working chamber 3.

[0041] ③. Start the ultraviolet LED light strip 5 to irradiate, so that the working chamber 3 is filled with ultraviolet light to disinfect various viruses and bacteria on the wall of the test tube.

[0042] ④. Start the motor 9 to rotate the test tube rack 6, thereby centrifuging the animal blood in the test tube.

[0043] ⑤. When the platinum resistance test shows that the temperature in the working chamber is lower than 37°C, the temperature in the temperature control chamber 2 is increased through the heat conversion of the Peltier 11 and the heat conduction of the heat sink 10. The hot air can raise the working chamber temperature to 37°C under the circulation of the air inlet fan 12 and the air outlet fan 13. When the platinum resistance test shows that the temperature in the working chamber is higher than 37°C, the temperature in the temperature control chamber 2 is reduced through the heat conversion of the Peltier 11 and the heat conduction of the heat sink 10. The cold air can reduce the working chamber temperature to 37°C under the circulation of the air inlet fan 12 and the air outlet fan 13.

Claims

1. A device for preventing hemolysis of blood samples for veterinary use, Features: From top to bottom, they are the top cover, working chamber, temperature control chamber and heat dissipation chamber; The inner wall of the top cover is paved with a reflective film, and a UV LED light strip is installed circumferentially, with the irradiation direction facing the reflective film; The bottom of the test tube rack is arranged in the working chamber and connected to the output shaft of the motor through a connecting frame; the motor is fixed in the temperature control chamber; Two heat sinks are installed at corresponding positions in the temperature control cavity and the heat dissipation cavity, and the two heat sinks form a group, with a Peltier arranged between them; The temperature control chamber is also provided with an air inlet fan and an air outlet fan, both of which are respectively embedded and fixed at the opening of the bottom surface of the working chamber; A heat dissipation fan is installed in the heat dissipation cavity, and heat dissipation holes are arranged on the wall surface of the heat dissipation cavity.

2. A device for preventing hemolysis of a blood sample for animals as claimed in claim 1, Features: The working chamber, the temperature control chamber and the heat dissipation chamber are all cylindrical box structures with equal sizes having a bottom surface and circumferential side walls. The three are coaxially arranged and fixed at the ends by threaded connection to form a whole.

3. A device for preventing hemolysis of a blood sample for animals as claimed in claim 1, Features: The top cover is a hemispherical cover; the top cover is hinged to the edge of the working chamber; and at the same time, a ring-shaped ultraviolet LED light strip is fixedly installed on the circumferential edge of the end surface of the top cover.

4. A device for preventing hemolysis of a blood sample for animals as claimed in claim 1, Features: The test tube rack is a funnel-shaped structure, the cone angle of the outer wall of the circumferential cone surface is designed to be 120 degrees, and test tube installation holes are designed at equal angles on the circumference of the outer wall.

5. A device for preventing hemolysis of a blood sample for animals as claimed in claim 1, Features: The connecting frame is a columnar structure with a groove in the center of the top. An internal thread is designed on the inner wall of the groove to be threadedly connected with the external thread designed on the circumference of the outer wall of the connecting part at the bottom of the test tube rack.

6. A device for preventing hemolysis of a blood sample for animals as claimed in claim 1, Features: The heat sink in the temperature control cavity is inserted into the temperature control cavity through the opening of the bottom surface of the temperature control cavity, and is limited by the bottom edge of the heat sink and the bottom surface of the temperature control cavity; the heat sink in the heat dissipation cavity is fixedly connected with the heat sink in the temperature control cavity and the bottom surface of the temperature control cavity by bolts, and the Peltier is clamped and fixed by two heat sinks.

7. A device for preventing hemolysis of a blood sample for animals as claimed in claim 1, Features: The air inlet fan and the air outlet fan are arranged on both sides of the motor.

8. A device for preventing hemolysis of a blood sample for animals as claimed in claim 1, Features: A group of heat sinks are arranged on both sides of the motor.

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