A blood collection device for medical testing

Abstract

This invention relates to the field of blood collection technology, and more particularly to a blood collection device for medical testing. It includes a blood collection tube pretreatment module, a tourniquet binding module for applying pressure to the patient's vein, and a vein identification and positioning module for identifying and locating the patient's veins, all positioned above a platform. The platform also houses a rotating disinfection module for contact with the patient's arm. The tourniquet is tightened via a tourniquet release mechanism, and a pressure sensor detects the pressure applied to the patient's arm, enabling automatic adjustment without manual binding, preventing over-tightening or under-tightening and ensuring binding quality. The vein identification and positioning module identifies the location of veins under the skin of the arm and uses infrared positioning for precise needle insertion by medical personnel, ensuring efficient and high-quality blood collection. After blood collection, the blood collection tube pretreatment module automatically shakes the vacuum collection tube to ensure the anticoagulant mixes with the blood sample, guaranteeing sample quality.

Description

Technical Field

[0001] This invention relates to the field of blood collection technology, specifically to a blood collection device for medical testing. Background Technology

[0002] Medical laboratory science is a discipline that uses modern physical and chemical methods and techniques for medical diagnosis. It mainly studies how to provide a basis for clinical diagnosis and treatment through laboratory techniques and medical instruments and equipment, and uses medical tests to identify a person's blood type, determine whether a person is anemic, and whether liver function is normal, etc.

[0003] When collecting blood from patients, the method used is often manual collection. The collection steps are: applying a tourniquet to the patient - locating the vein - inserting a double-ended needle - inserting the other end of the double-ended needle into the collection tube - shaking the vein after blood is drawn. Although the description is relatively simple, various problems often arise in actual operation.

[0004] One issue is problems that may arise during the blood draw process, such as: the tourniquet being too loose, resulting in insufficient blood pressure in the vein and slow blood draw; inaccurate vein location, resulting in the needle not being able to be inserted precisely for blood draw; and forgetting to shake the vein after blood draw, resulting in poor mixing of the anticoagulant, which may affect the accuracy of subsequent test data.

[0005] Secondly, there is the problem of the blood-drawing environment not being disinfected in a timely manner. When drawing blood from patients, each patient's arm is placed in basically the same position. Some use a pad to support their arm, while others place it directly on the windowsill, repeatedly touching the same spot. When patients with skin diseases have finished drawing blood, the area is not disinfected, which may lead to cross-infection. The existing blood-drawing windows cannot be disinfected in a timely manner, thus posing a certain safety hazard. Therefore, a blood collection device for medical testing is proposed to address the above problems. Summary of the Invention

[0006] The purpose of this invention is to provide a blood collection device for medical testing to solve the problems mentioned in the background art.

[0007] To achieve the above objectives, the present invention provides the following technical solution:

[0008] As an optional solution of the blood collection device for medical testing described in this invention, the blood collection device for medical testing includes a blood collection tube pretreatment module, a bidirectional needle tube, a limiting frame, a tourniquet binding module, a vein identification and positioning module, and a circulating and rotating disinfection module.

[0009] One end of the bidirectional needle tube is inserted into the blood collection tube pretreatment module, and the other end is inserted by the doctor into the patient's blood drawing vein.

[0010] The limiting frame has a placement platform installed inside. Above the placement platform are a bandage binding module for applying pressure to the patient's veins and a vein identification and positioning module for identifying and locating the patient's veins. The bottom of the vein identification and positioning module is fixedly connected to a horizontal moving mechanism for moving the vein identification and positioning module horizontally. The outer side of the horizontal moving mechanism is fixedly connected to the placement platform.

[0011] The platform is also equipped with a rotating disinfection module that comes into contact with the patient's arm.

[0012] The blood collection tube pretreatment module includes a base, an insulation sleeve for keeping cold is installed on the top of the base, a rotating platform is rotatably connected to the top center of the insulation sleeve, a driven gear ring is fixedly connected to the bottom of the rotating platform, and multiple sets of inclined grooves with arc-shaped trajectories are opened on the top of the rotating platform, and a vacuum collection tube is installed in the inclined groove, with a bidirectional needle tube inserted into the top of the vacuum collection tube.

[0013] The insulation jacket also houses a first motor. The main shaft of the first motor is fixedly connected to a drive gear, and the outer side of the drive gear meshes with the driven gear ring.

[0014] As an optional embodiment of the blood collection device for medical testing described in this invention, a refrigeration device for cooling is also provided on one side of the base, and the output end of the refrigeration device is connected to an air tube, the other end of which is connected to an insulation sleeve.

[0015] As an optional embodiment of the blood collection device for medical testing described in this invention, a vertical rod is fixedly connected to the upper side of the insulation sleeve, an electric telescopic rod is fixedly connected inside the vertical rod, a rotating column is rotatably connected to the free end of the electric telescopic rod, and multiple sets of pressing blocks for pressing down the vacuum collection tube cap are fixedly connected to the outer side of the rotating column.

[0016] When collecting blood from patients, the method often involves manual collection. The steps are: applying a tourniquet, locating the vein, inserting a double-ended needle, inserting the other end of the double-ended needle into the collection tube, and shaking the vein after blood collection. Although the description is relatively simple, various problems often arise in practice. Firstly, there are issues during the blood collection process itself, such as: the tourniquet being applied too loosely, resulting in insufficient blood pressure in the vein and slow blood collection; inaccurate vein location leading to inaccurate needle insertion; and forgetting to shake the vein after blood collection, resulting in poor mixing of the anticoagulant, potentially affecting the accuracy of subsequent test data. Secondly, there is the problem of inadequate disinfection of the blood collection environment. When drawing blood from patients, each patient's arm is generally positioned in the same way; some use a support board, while others are in direct contact with the windowsill, repeatedly touching the same spot. When patients with skin conditions have had their blood drawn, this area becomes contaminated with bacteria. The area was not disinfected, posing a risk of cross-infection. Existing blood collection windows cannot be disinfected promptly, thus creating safety hazards. To address this, a cuff application module, a horizontal movement mechanism, and a vein identification and positioning module are installed on the placement platform. The cuff application module automatically applies a cuff to the patient, tightening it via a cuff release mechanism. A pressure sensor detects the pressure applied to the patient's arm, automatically adjusting the cuff to prevent it from being too loose or too tight, ensuring quality. The horizontal movement mechanism moves the vein identification and positioning module to scan the patient's arm. This module identifies veins under the skin using infrared positioning, facilitating precise needle insertion and ensuring efficient and high-quality blood collection. Finally, the blood collection tube pretreatment module automatically shakes the vacuum collection tube after blood collection to ensure the anticoagulant mixes with the blood sample, guaranteeing sample quality.

[0017] As an optional solution of the blood collection device for medical testing described in this invention, the compression band binding module includes a limiting ring and a compression band retractor that are fixedly connected to the placement platform. A compression band is provided on the inner side of the limiting ring. One end of the compression band is fixedly connected to the inner wall of the limiting ring, and the other end of the compression band passes through the limiting ring and is fixedly connected to the take-up end of the compression band retractor.

[0018] A pressure sensor is also installed on the inside of the tourniquet;

[0019] The outer side of the pressure band is fixedly connected with evenly distributed elastic ropes, and the other end of the elastic ropes is fixedly connected to the inner wall of the limiting ring.

[0020] As an optional embodiment of the blood collection device for medical testing described in this invention, an arc-shaped support plate is also provided on the inner side of the limiting ring, and two sets of vertically arranged connecting columns that are fixedly connected to the limiting ring are fixedly connected to the bottom of the support plate.

[0021] When a patient is having blood drawn, their arm is inserted into the limiting ring. The pressure band retractor is activated and tightens the pressure band. At this time, the pressure band inside the limiting ring is brought close to the patient's arm and tightened. The pressure sensor contacts the patient's arm skin and displays the pressure value. When the pressure value reaches the set threshold, the process can be stopped to facilitate subsequent work.

[0022] As an optional embodiment of the blood collection device for medical testing described in this invention, the circulating rotation disinfection module includes an inner frame disposed inside the placement platform, a second motor installed inside the inner frame, a rotating roller fixedly connected to the end of the main shaft of the second motor, a rotating sleeve fixedly connected to the outer side of the rotating roller near the second motor, infrared sensors evenly distributed on the outer side of the rotating sleeve, and multiple sets of alternately arranged arm support plates for contacting the patient's arm and heat insulation strips for isolating the arm support plates fixedly connected to the outer side of the rotating roller on one side of the rotating sleeve.

[0023] The inner frame has a disinfection mechanism for disinfecting the surface of the arm support plate and a temperature control mechanism for adjusting the temperature of the arm support plate surface to ensure patient comfort on both sides. The arm support plate is also equipped with a cooling mechanism for cooling down the arm support plate. The temperature control mechanism, disinfection mechanism and cooling mechanism are all fixedly connected to the inner frame on the outside.

[0024] As an optional embodiment of the blood collection device for medical testing described in this invention, the temperature control mechanism includes a temperature control frame fixedly connected to the inner frame, a temperature detector for monitoring room temperature is installed on the top of the temperature control frame, and a temperature control plate with an arc surface for adjusting the temperature of the arm support plate is installed inside the temperature control frame.

[0025] As an optional embodiment of the blood collection device for medical testing described in this invention, the disinfection mechanism includes a disinfection frame fixedly connected to the inner frame, and a heating plate for high-temperature disinfection of the surface of the arm support plate is installed inside the disinfection frame, and the heating plate is arc-shaped.

[0026] As an optional embodiment of the blood collection device for medical testing described in this invention, the cooling mechanism includes a cooling frame fixedly connected to the inner frame, a third motor fixedly connected to one side of the inner frame, a rotating cylinder fixedly connected to the outer side of the main shaft of the third motor, and a uniformly distributed wiping brush for wiping the cooling water on the surface of the arm support plate fixedly connected to the outer side of the rotating cylinder.

[0027] The cooling frame also has an inclined drain plate installed inside;

[0028] A water exchange pipe is connected to the outside of the cooling frame, and the other end of the water exchange pipe passes through the inner frame and extends to the outside of the placement platform.

[0029] During blood collection from a patient, their arm is placed on an arm support plate inside the inner frame. After the blood draw is completed, a second motor drives the arm support plate to rotate. The arm support plate that has been in contact with the patient's skin moves to the disinfection mechanism for automatic disinfection. The next arm support plate is positioned on top for easy access by subsequent patients. After disinfection, the inner frame is also equipped with a cooling module for cooling the arm support plate and a temperature control mechanism for adjusting its temperature. After being processed by the temperature control mechanism, the arm support plate rotates to the top, ensuring patient comfort when in contact with the arm support plate, especially effective in winter.

[0030] Compared with the prior art, the beneficial effects of the present invention are:

[0031] By installing a tourniquet binding module, a horizontal movement mechanism, and a vein identification and positioning module on the placement platform, the tourniquet binding module is used to automatically bind the tourniquet to the patient. The tourniquet is tightened by a tourniquet retractor, and the pressure sensor can detect the pressure applied to the patient's arm and achieve automatic adjustment, eliminating the need for manual binding and preventing the tourniquet from being too loose or too tight, thus ensuring the quality of binding. The horizontal movement mechanism drives the vein identification and positioning module to move and scan the patient's arm. The vein identification and positioning module can identify the location of veins under the skin of the arm and locate them using infrared light, which facilitates accurate needle insertion by medical staff and ensures the efficiency and quality of blood sample collection. The blood collection tube pretreatment module can automatically shake the vacuum collection tube after blood collection to ensure that the anticoagulant is mixed with the blood sample, ensuring the quality of the blood sample.

[0032] During blood collection from a patient, their arm is placed on an arm support plate inside the inner frame. After the blood draw is completed, a second motor drives the arm support plate to rotate. The arm support plate that has been in contact with the patient's skin moves to the disinfection mechanism for automatic disinfection. The next arm support plate is positioned on top for easy access by subsequent patients. After disinfection, the inner frame is also equipped with a cooling module for cooling the arm support plate and a temperature control mechanism for adjusting its temperature. After being processed by the temperature control mechanism, the arm support plate rotates to the top, ensuring patient comfort when in contact with the arm support plate, especially effective in winter. Attached Figure Description

[0033] Figure 1 A schematic diagram of the overall structure of a blood collection device for medical testing;

[0034] Figure 2 This is a schematic diagram of the driven gear ring of a blood collection device for medical testing.

[0035] Figure 3 This is a schematic diagram of the bandage binding module of a blood collection device for medical testing.

[0036] Figure 4 A schematic diagram of a circulating disinfection module in a blood collection device for medical testing.

[0037] Figure 5 This is a schematic diagram of the installation structure of the rotating roller in a blood collection device for medical testing.

[0038] Figure 6 A cross-sectional view of the rotating roller of a blood collection device for medical testing;

[0039] Figure 7 A blood collection device for medical testing Figure 6 A schematic diagram of the structure at point A.

[0040] In the diagram: 1. Blood collection tube pretreatment module; 101. Base; 102. Insulation sleeve; 103. Rotating table; 104. Vacuum collection tube; 105. Driven gear ring; 106. First motor; 107. Drive gear; 108. Vertical rod; 109. Electric telescopic rod; 110. Rotating column; 111. Lower pressure block; 112. Refrigeration equipment; 113. Air tube; 2. Bidirectional needle tube; 3. Limiting frame; 4. Placement platform; 5. Traction band binding module; 501. Limiting ring; 502. Traction band retractor; 503. Traction band; 504. Pressure sensor; 505. Elastic rope; 506. Support arc plate; 5 7. Connecting column; 6. Horizontal moving mechanism; 7. Vein recognition and positioning module; 8. Circulating rotation disinfection module; 801. Inner frame; 802. Second motor; 803. Rotating sleeve; 804. Rotating roller; 805. Infrared sensor; 806. Arm support plate; 807. Heat insulation strip; 808. Temperature control mechanism; 8081. Temperature control frame; 8082. Temperature detector; 8083. Temperature control board; 809. Disinfection mechanism; 8091. Disinfection frame; 8092. Heating plate; 810. Cooling frame; 811. Third motor; 812. Rotating cylinder; 813. Wiping brush; 814. Draining plate; 815. Water replacement pipe. Detailed Implementation

[0041] Example 1: Please refer to Figure 1 and Figure 2 The present invention provides a technical solution:

[0042] A blood collection device for medical testing includes a blood collection tube pretreatment module 1, a bidirectional needle tube 2, a limiting frame 3, a tourniquet binding module 5, a vein identification and positioning module 7, and a circulating and rotating disinfection module 8.

[0043] One end of the bidirectional needle tube 2 is inserted into the blood collection tube pretreatment module 1, and the other end of the bidirectional needle tube 2 is inserted by the doctor into the patient's blood collection vein;

[0044] The limiting frame 3 has a placement platform 4 installed inside. Above the placement platform 4 are a compression bandage module 5 for compressing the patient's veins and a vein identification and positioning module 7 for identifying and locating the patient's veins. The bottom of the vein identification and positioning module 7 is fixedly connected to a horizontal moving mechanism 6 for driving the vein identification and positioning module 7 to move horizontally. The outer side of the horizontal moving mechanism 6 is fixedly connected to the placement platform 4.

[0045] The placement platform 4 is also equipped with a circulating rotating disinfection module 8 for contact with the patient's arm;

[0046] The blood collection tube pretreatment module 1 includes a base 101. A heat preservation sleeve 102 for keeping cold is installed on the top of the base 101. A rotating platform 103 is rotatably connected to the top center of the heat preservation sleeve 102. A driven gear ring 105 is fixedly connected to the bottom of the rotating platform 103. Multiple sets of inclined grooves with arc-shaped trajectories are opened on the top of the rotating platform 103, and a vacuum collection tube 104 is installed in the inclined groove. A bidirectional needle tube 2 is inserted into the top of the vacuum collection tube 104.

[0047] The insulation jacket 102 is also equipped with a first motor 106. The main shaft of the first motor 106 is fixedly connected to a drive gear 107. The outer side of the drive gear 107 is meshed with the driven gear ring 105.

[0048] A refrigeration device 112 for cooling is also provided on one side of the base 101. The output end of the refrigeration device 112 is connected to an air pipe 113, and the other end of the air pipe 113 is connected to the insulation sleeve 102.

[0049] A vertical rod 108 is fixedly connected to the upper side of the insulation sleeve 102. An electric telescopic rod 109 is fixedly connected inside the vertical rod 108. A rotating column 110 is rotatably connected to the free end of the electric telescopic rod 109. Multiple sets of pressing blocks 111 for pressing down the vacuum collection tube 104 cover are fixedly connected to the outside of the rotating column 110.

[0050] When collecting blood from patients, the method often involves manual collection. The steps are: applying a tourniquet, locating the vein, inserting a double-ended needle, inserting the other end of the double-ended needle into the collection tube, and shaking the vein after blood collection. Although the description is simple, various problems often arise in practice. Firstly, there are issues during the blood collection process itself, such as: the tourniquet being applied too loosely, resulting in insufficient blood pressure in the vein and slow blood collection; inaccurate vein location preventing precise needle insertion; and forgetting to shake the vein after collection, leading to poor anticoagulant mixing and potentially affecting the accuracy of subsequent test data. Secondly, there is the problem of inadequate disinfection of the blood collection environment. When drawing blood from patients, each patient's arm is generally positioned in the same way; some use a support board, while others are in direct contact with the windowsill, repeatedly touching the same spot. When patients with skin conditions have their blood drawn, this area is not disinfected, posing a risk of cross-infection. In cases where existing blood-drawing windows cannot be disinfected in a timely manner, posing certain safety hazards, a solution is found by installing a tourniquet binding module 5, a horizontal movement mechanism 6, and a vein identification and positioning module 7 on the placement platform 4. The tourniquet binding module 5 automatically binds the tourniquet 503 to the patient, tightens it via a tourniquet release and retractor 502, and detects the pressure applied to the patient's arm using a pressure sensor 504 for automatic adjustment, eliminating the need for manual binding and preventing issues of being too loose or too tight, thus ensuring binding quality. The horizontal movement mechanism 6 moves the vein identification and positioning module 7 to scan the patient's arm, identifying the location of veins under the skin of the arm and using infrared positioning to facilitate precise needle insertion by medical staff, ensuring efficient and high-quality blood sample collection. After blood collection, the blood collection tube pretreatment module 1 automatically shakes the vacuum collection tube 104 to ensure the anticoagulant mixes with the blood sample, guaranteeing blood sample quality.

[0051] Also includes the following:

[0052] When drawing blood from a patient, the vacuum collection tube 104 is first placed in the inclined slot above the rotating table 103. Since there are multiple inclined slots, multiple vacuum collection tubes 104 can be placed at one time. Then, by manually rotating the rotating column 110, the lower pressure block 111 on the outside of the rotating column 110 is pressed against the sealing cap of the inclined vacuum collection tube 104, thus completing the fixation of the vacuum collection tube 104.

[0053] When drawing multiple blood samples at once, after sampling is completed in one vacuum collection tube 104, the bidirectional needle tube 2 is bent directly to prevent blood from continuing to flow. Then, one end of the bidirectional needle tube 2 is inserted into another vacuum collection tube 104. The above steps are repeated to achieve the extraction of multiple blood samples. After sampling is completed, by activating the electric telescopic rod 109, the rotating column 110 drives the lower moving block 111 to move upward and separate from the sealing cap of the vacuum collection tube 104, making it convenient for the vacuum collection tube 104 to perform the next shaking operation. At this time, the first motor 106 drives the active gear 107 to rotate, and the active gear 107 drives the driven gear ring 105 to rotate, thereby rotating the rotating table 103. Since the vacuum collection tube 104 is set at an angle and is mostly located below the rotating table 103, the vacuum collection tube 104 will not be thrown out during rotation, so that the blood and anticoagulant are fully mixed to ensure the quality of the blood sample. This setting can achieve the mixing of blood samples and anticoagulants in multiple sets of vacuum collection tubes 104 at one time, which is more efficient.

[0054] A refrigeration device 112 for supplying cooling air to the inside of the insulation sleeve 102 is also provided on the outside of the insulation sleeve 102, which can fully ensure the activity of the blood sample and ensure the accuracy of the test data.

[0055] The patient's arm is inserted into the compression bandage binding module 5 and then automatically fixed. The forearm is positioned above and in contact with the circulating and rotating disinfection module 8 inside the placement platform 4. At this time, the vein identification and positioning module 7 is moved by the horizontal moving mechanism 6. The vein identification and positioning module 7 can automatically identify and locate the veins in the patient's arm. Its principle is based on vein imaging: the arm is irradiated with near-infrared light (wavelength is usually between 700-1000 nanometers). The deoxygenated hemoglobin in the vein absorbs the near-infrared light, while the surrounding skin and muscle tissue reflect the light, forming a difference in brightness. The infrared sensor captures these differences and generates a grayscale image of the vein. Then, the laser light below the vein identification and positioning module 7 illuminates the vein area, making it easier for medical staff to perform the injection.

[0056] The rotating disinfection module 8 ensures that when a patient's arm comes into contact with it, the two are at similar temperatures, guaranteeing the patient's comfort. At the same time, it can achieve timely disinfection, ensuring that patients will not infect each other, thus improving safety.

[0057] Example 2: This example is an improvement upon Example 1. Please refer to [link / reference]. Figure 3 Specifically, the pressure band binding module 5 includes a limiting ring 501 and a pressure band retractor 502 that are fixedly connected to the placement platform 4. A pressure band 503 is provided on the inner side of the limiting ring 501. One end of the pressure band 503 is fixedly connected to the inner wall of the limiting ring 501, and the other end of the pressure band 503 passes through the limiting ring 501 and is fixedly connected to the take-up end of the pressure band retractor 502.

[0058] A pressure sensor 504 is also installed on the inside of the pressure band 503;

[0059] The outer side of the pressure band 503 is fixedly connected with evenly distributed elastic ropes 505, and the other end of the elastic ropes 505 is fixedly connected to the inner wall of the limiting ring 501.

[0060] The inner side of the limiting ring 501 is also provided with an arc-shaped support plate 506, and the bottom of the support plate 506 is fixedly connected with two sets of vertically arranged connecting columns 507 that are fixedly connected to the limiting ring 501.

[0061] When a patient is having blood drawn, the patient's arm is inserted into the limiting ring 501. The pressure band retractor 502 is activated and causes the pressure band 503 to tighten. At this time, the pressure band 503 inside the limiting ring 501 can be brought close to the patient's arm and tightened. The pressure sensor 504 contacts the patient's arm skin and displays the pressure value. When the pressure value is at the set threshold, the process can be stopped to facilitate subsequent work.

[0062] Also includes the following:

[0063] An elastic cord 505 is also installed on the outside of the compression band 503. The elastic cord 505 not only ensures that the compression band 503 remains circular in its free state, serving a shaping purpose and facilitating the patient's arm insertion, but also, when the compression band retractor 502 is released, it helps the compression band 503 return to its original position. Additionally, a support arc plate 506 is provided on the inner wall of the limiting ring 501 to... Figure 3 For example, the support arc plate 506 is set with the front side higher and the rear side lower, which makes it convenient to provide tilt support for the triceps brachii of the patient's arm. When the pressure band 503 is tightened, it is tied together with the support arc plate 506. The inner side of the support arc plate 506 is set with an arc surface, which makes it convenient to fully fit the patient's arm.

[0064] The pulse belt take-up and release device 502 is similar to a traditional take-up and release device structure, such as a winch. It consists of a motor-driven take-up reel, with one end of the pulse belt 503 connected to the outside of the take-up reel. The take-up and release of the pulse belt 503 is achieved by rotating the take-up reel. The pulse belt take-up and release device 502 is an existing technology product, so it is not described in detail here.

[0065] Example 3: This example is an improvement on Example 2. Please refer to [link / reference]. Figure 4 , Figure 5 , Figure 6 and Figure 7Specifically, the circulating disinfection module 8 includes an inner frame 801 set inside the placement platform 4. A second motor 802 is installed inside the inner frame 801. A rotating roller 804 is fixedly connected to the end of the main shaft of the second motor 802. A rotating sleeve 803 is fixedly connected to the outer side of the rotating roller 804 near the second motor 802. Infrared sensors 805 are evenly distributed on the outer side of the rotating sleeve 803. Multiple sets of alternating arm support plates 806 for contacting the patient's arm and heat insulation strips 807 for isolating the arm support plates 806 are fixedly connected to the outer side of the rotating roller 804 on one side of the rotating sleeve 803.

[0066] The inner frame 801 has a disinfection mechanism 809 for disinfecting the surface of the arm support plate 806 and a temperature control mechanism 808 for adjusting the temperature of the surface of the arm support plate 806 to ensure patient comfort on both sides. The arm support plate 806 is also provided with a cooling mechanism for cooling it down. The temperature control mechanism 808, the disinfection mechanism 809 and the cooling mechanism are all fixedly connected to the inner frame 801 on the outside.

[0067] The temperature control mechanism 808 includes a temperature control frame 8081 fixedly connected to the inner frame 801. A temperature detector 8082 for monitoring room temperature is installed on the top of the temperature control frame 8081. A temperature control plate 8083 with an arc surface is installed inside the temperature control frame 8081 for adjusting the temperature of the arm support plate 806.

[0068] The disinfection mechanism 809 includes a disinfection frame 8091 fixedly connected to the inner frame 801. The inside of the disinfection frame 8091 is a heating plate 8092 for high-temperature disinfection of the surface of the arm support plate 806, and the heating plate 8092 is arc-shaped.

[0069] The cooling mechanism includes a cooling frame 810 fixedly connected to the inner frame 801. A third motor 811 is fixedly connected to one side of the inner side of the cooling frame 810. A rotating cylinder 812 is fixedly connected to the outside of the main shaft of the third motor 811. A wiping brush 813, which is evenly distributed, is fixedly connected to the outside of the rotating cylinder 812 for wiping the cooling water on the surface of the arm support plate 806.

[0070] The cooling frame 810 also has an inclined drain plate 814 installed inside;

[0071] The cooling frame 810 is connected to a water exchange pipe 815 on the outside. The other end of the water exchange pipe 815 passes through the inner frame 801 and extends to the outside of the placement platform 4.

[0072] When collecting blood from a patient, their arm is placed on the arm support plate 806 inside the inner frame 801. After the blood draw is completed, the second motor 802 drives the rotating roller 804 to rotate, which in turn drives the arm support plate 806 to rotate. The arm support plate 806 that is in contact with the patient's skin moves to the disinfection mechanism 809 for automatic disinfection. The next arm support plate 806 is positioned on top for easy use by subsequent patients. After the arm support plate 806 is disinfected, the inner frame 801 is also equipped with a cooling module for cooling the arm support plate 806 and a temperature control mechanism 808 for adjusting the temperature of the arm support plate 806. After being processed by the temperature control mechanism 808, the arm support plate 806 rotates to the top, which ensures the patient's comfort when in contact with the arm support plate 806, especially in winter.

[0073] Also includes the following:

[0074] During blood draw, the patient's arm is positioned above the rotating disinfection module 8 and in contact with the arm support plate 806 above it. Under the action of the temperature control mechanism 808, the surface temperature of the arm support plate 806, which is about to rotate to the top, can be kept moderate. Especially in winter, this can provide a comfortable environment for the patient. The temperature detector 8082 inside the temperature control mechanism 808 can detect the external temperature of the device and control the surface temperature of the temperature control plate 8083 through the external control unit, thereby controlling the temperature of the arm support plate 806, which is about to rotate to the top.

[0075] After the patient's blood is drawn, their arm is removed from the upper arm support plate 806. At this time, the infrared sensor 805 on the outside of the rotating sleeve 803 detects that the patient's arm has been removed. The second motor 802 is started, and the upper arm support plate 806 is rotated through the rotating roller 804. The arm support plate 806 is located on one side of the disinfection mechanism 809. The surface of the arm support plate 806 is heated by the heating plate 8092 to disinfect it at high temperature in time. At the same time, heat insulation strips 807 are set between the arm support plates 806 to prevent the arm support plates 806 from affecting each other and to ensure that the arm support plate 806 can be used independently.

[0076] Both the temperature control plate 8083 and the heating plate 8092 are arc-shaped, which can match their arm support plate 806 to ensure temperature regulation and high-temperature sterilization effect.

[0077] After the high-temperature disinfection of the arm support plate 806 is completed, the arm support plate 806 will continue to rotate. The high-temperature arm support plate 806 rotates to contact the water inside its cooling frame 810, achieving rapid cooling. As the arm support plate 806 rotates, the third motor 811 on one side drives the rotating cylinder 812 to rotate. The wiping brush 813 on the outside of the rotating cylinder 812 can wipe the water on the surface of the arm support plate 806 to ensure that the surface of the arm support plate 806 is dry and convenient for subsequent recycling. At the same time, the inclined drain plate 814 contacts the wiping brush 813 to squeeze out the water absorbed inside, ensuring the wiping effect of the wiping brush 813. The wiping brush 813 can be made of absorbent non-woven fabric strips. The water replacement pipe 815 is set to facilitate the replacement of the water inside the cooling frame 810 to ensure its cooling effect.

[0078] This article uses specific examples to illustrate the principles and implementation methods of the present invention. The above examples are only for the purpose of helping to understand the method and core ideas of the present invention. The above descriptions are only preferred embodiments of the present invention. It should be noted that due to the limitations of textual expression, while there are objectively infinite specific structures, those skilled in the art can make several improvements, modifications, or changes without departing from the principles of the present invention, and can also combine the above technical features in an appropriate manner. These improvements, modifications, changes, or combinations, or the direct application of the inventive concept and technical solution to other situations without modification, should all be considered within the scope of protection of the present invention.

Claims

1. A blood collection device for medical testing, characterized in that: It includes a blood collection tube pretreatment module (1), a bidirectional needle tube (2), a limiting frame (3), a tourniquet binding module (5), a vein identification and positioning module (7), and a circulating and rotating disinfection module (8). One end of the bidirectional needle tube (2) is inserted into the blood collection tube pretreatment module (1), and the other end of the bidirectional needle tube (2) is inserted by the doctor into the patient's blood collection vein; The limiting frame (3) has a placement platform (4) installed inside. Above the placement platform (4) is a compression bandage module (5) for compressing the patient's vein and a vein identification and positioning module (7) for identifying and locating the patient's vein. The bottom of the vein identification and positioning module (7) is fixedly connected to a horizontal moving mechanism (6) for driving the vein identification and positioning module (7) to move horizontally. The outer side of the horizontal moving mechanism (6) is fixedly connected to the placement platform (4). The placement platform (4) is also equipped with a rotating disinfection module (8) for contact with the patient's arm. The blood collection tube pretreatment module (1) includes a base (101), an insulation sleeve (102) for keeping cold is installed on the top of the base (101), a rotating platform (103) is rotatably connected to the top center of the insulation sleeve (102), a driven gear ring (105) is fixedly connected to the bottom of the rotating platform (103), and multiple sets of inclined grooves arranged in an arc trajectory are opened on the top of the rotating platform (103), and a vacuum collection tube (104) is arranged in the inclined groove, and a bidirectional needle tube (2) is inserted into the top of the vacuum collection tube (104). The insulation jacket (102) is also equipped with a first motor (106). The main shaft of the first motor (106) is fixedly connected to a drive gear (107). The outer side of the drive gear (107) is meshed with the driven gear ring (105). The circulating disinfection module (8) includes an inner frame (801) set inside the placement platform (4). A second motor (802) is installed inside the inner frame (801). A rotating roller (804) is fixedly connected to the end of the main shaft of the second motor (802). A rotating sleeve (803) is fixedly connected to the outer side of the rotating roller (804) near the second motor (802). A uniformly distributed infrared sensor (805) is installed on the outer side of the rotating sleeve (803). A multi-set alternating arm support plate (806) for contacting the patient's arm and a heat insulation strip (807) for isolating the arm support plate (806) are fixedly connected to the outer side of the rotating roller (804) on one side of the rotating sleeve (803). The inner frame (801) has a disinfection mechanism (809) for disinfecting the surface of the arm support plate (806) and a temperature control mechanism (808) for adjusting the temperature of the surface of the arm support plate (806) to ensure patient comfort on both sides. The arm support plate (806) is also provided with a cooling mechanism for cooling the arm support plate (806) below. The temperature control mechanism (808), the disinfection mechanism (809) and the cooling mechanism are all fixedly connected to the inner frame (801) on the outside. The temperature control mechanism (808) includes a temperature control frame (8081) fixedly connected to the inner frame (801), a temperature detector (8082) for monitoring room temperature is installed on the top of the temperature control frame (8081), and a temperature control plate (8083) with an arc surface for adjusting the temperature of the arm support plate (806) is installed inside the temperature control frame (8081). The disinfection mechanism (809) includes a disinfection frame (8091) fixedly connected to the inner frame (801). The inside of the disinfection frame (8091) is equipped with a heating plate (8092) for high-temperature disinfection of the surface of the arm support plate (806), and the heating plate (8092) is arc-shaped. The cooling mechanism includes a cooling frame (810) fixedly connected to the inner frame (801), a third motor (811) fixedly connected to one side of the inner side of the cooling frame (810), a rotating cylinder (812) fixedly connected to the outer side of the main shaft of the third motor (811), and a uniformly distributed wiping brush (813) fixedly connected to the outer side of the rotating cylinder (812) for wiping the cooling water on the surface of the arm support plate (806). The interior of the cooling frame (810) is also equipped with an inclined drain plate (814); The cooling frame (810) is connected to a water exchange pipe (815) on the outside. The other end of the water exchange pipe (815) passes through the inner frame (801) and extends to the outside of the placement platform (4).

2. The blood collection device for medical testing according to claim 1, characterized in that: A refrigeration device (112) for cooling is also provided on one side of the base (101). The output end of the refrigeration device (112) is connected to an air pipe (113), and the other end of the air pipe (113) is connected to the insulation sleeve (102).

3. The blood collection device for medical testing according to claim 1, characterized in that: A vertical rod (108) is fixedly connected to the upper side of the insulation sleeve (102). An electric telescopic rod (109) is fixedly connected inside the vertical rod (108). A rotating column (110) is rotatably connected to the free end of the electric telescopic rod (109). Multiple sets of pressing blocks (111) for pressing down the cover of the vacuum collection tube (104) are fixedly connected to the outside of the rotating column (110).

4. A blood collection device for medical testing according to claim 1, characterized in that: The pressure band binding module (5) includes a limiting ring (501) and a pressure band retractor (502) that are fixedly connected to the placement platform (4). A pressure band (503) is provided on the inner side of the limiting ring (501). One end of the pressure band (503) is fixedly connected to the inner wall of the limiting ring (501), and the other end of the pressure band (503) passes through the limiting ring (501) and is fixedly connected to the take-up end of the pressure band retractor (502). A pressure sensor (504) is also installed on the inside of the pressure band (503); The outer side of the pressure band (503) is fixedly connected with evenly distributed elastic ropes (505), and the other end of the elastic ropes (505) is fixedly connected to the inner wall of the limiting ring (501).

5. A blood collection device for medical testing according to claim 4, characterized in that: The inner side of the limiting ring (501) is also provided with an arc-shaped support plate (506), and the bottom of the support plate (506) is fixedly connected with two sets of vertically arranged connecting columns (507) that are fixedly connected to the limiting ring (501).

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