Blood extraction device for medical examination

Abstract

The invention relates to the technical field of blood extraction, and discloses a medical examination blood extraction device which comprises a sampling machine body and a working groove, a blood drawing needle cylinder is connected to the inner wall of a limiting cylinder in a penetrating mode, a first electric push rod is fixedly arranged on one side of the inner wall of a first limiting sliding groove, and a limiting block is fixedly arranged on one side of the bottom of a supporting base plate. According to the device, a big arm area is arranged on the inner side of the limiting frame, the device automatically starts the electric air bag to extrude the big arm of a patient, so that the blood vessel of the patient is in a hyperemia state, the fluorescent powder area is recognized and detected through the fluorescence detector, and the detection accuracy is improved. And then a second electric push rod is started to push a limiting cylinder to slide down in a supporting cylinder, so that a blood drawing needle cylinder is driven to slide down, a first needle tube is inserted into a fluorescent area and enters a blood vessel to draw out blood, the patient can complete blood drawing operation on the sampling machine main body in a self-service manner, and the error risk caused by fatigue work of medical staff is reduced.

Description

Technical Field

[0001] This invention belongs to the technical field of blood extraction, and specifically relates to a blood extraction device for medical testing. Background Technology

[0002] In the medical field, hematological testing plays a crucial role. Its core objective is to provide a solid and reliable scientific basis for disease diagnosis, condition assessment, treatment monitoring, and health screening through precise analysis of blood components. Specifically, hematological testing has several key functions, such as accurate detection in the early stages of disease, buying valuable time for subsequent treatment; accurately assessing the severity of disease, assisting doctors in developing personalized treatment plans; real-time monitoring of treatment effects, allowing for timely adjustments to treatment strategies; and conducting comprehensive risk assessments before surgery, ensuring surgical safety.

[0003] Before conducting blood tests, drawing blood from the patient is an essential step, and this operation requires specialized blood-drawing equipment. With the rapid development of modern medical technology, in order to further improve the convenience of medical staff's work and enhance the overall efficiency of medical blood testing, the functions and types of blood-drawing devices are constantly being upgraded and iterated, striving to demonstrate higher efficiency and convenience in use.

[0004] However, most existing blood extraction devices are still simple syringe-type devices. In practice, medical staff need to first tie and bandage the patient's arm to make the veins stand out, and then insert the needle into the vein to extract blood. But this traditional blood extraction device has revealed many drawbacks in practical applications:

[0005] 1. In scenarios involving prolonged and frequent blood draws, medical staff must repeatedly perform the same procedures to collect blood. This high-intensity, repetitive work easily leads to fatigue. Fatigue affects the stability of the staff's hands, potentially causing the needle to deviate from its intended position in the patient's vein or resulting in an excessively large incision. These errors not only cause excessive blood loss and discomfort for the patient but also significantly increase the risks during the blood draw process, posing a potential threat to the patient's health.

[0006] 2. After blood is drawn from each patient, ordinary blood-drawing devices typically do not have an automatic dispensing function. This means that medical staff need to manually take the corresponding blood collection tubes for each patient and then transfer the drawn blood into the corresponding tubes one by one. This process is not only tedious and laborious but also consumes a lot of time, greatly reducing overall work efficiency, especially when dealing with a large number of patients, this inefficiency problem becomes even more prominent.

[0007] 3. Conventional blood-drawing devices lack effective refrigeration for the blood drawn into the test tubes. Prolonged storage at room temperature can cause blood to deteriorate, affecting the accuracy of subsequent medical test results. Furthermore, existing devices lack uniform dispensing capabilities when filling the test tubes with blood, leading to significant discrepancies in blood volume. This uneven blood volume can cause considerable inconvenience in later medical tests and may even affect the reliability of the results.

[0008] Therefore, it is necessary to invent a medical testing blood extraction device to solve the above problems. Summary of the Invention

[0009] To address the aforementioned problems, this invention provides a medical blood extraction device to solve the issues raised in the background section.

[0010] To achieve the above objectives, the present invention provides the following technical solution: a medical testing blood collection device, comprising a sampling machine body and a working trough, wherein the working trough is located in the middle of one side of the sampling machine body, an automatic blood collection mechanism is installed inside the working trough, and an automatic dispensing mechanism and a blood storage component are provided at the upper end of the sampling machine body.

[0011] The automatic blood-drawing mechanism includes a support plate inserted into the working slot. A limit frame is installed on one side of the top of the support plate, and an electric airbag is installed on the inner wall of the limit frame. A first limiting groove is formed on the other side of the top of the support plate. An adjusting frame is slidably connected to the inner wall of the first limiting groove. A support cylinder is fixedly installed on the top of the adjusting frame. A limit cylinder is slidably connected to the inner wall of the support cylinder. A blood-drawing needle is inserted into the inner wall of the limit cylinder. Second limiting grooves are formed on both sides of the inner wall of the support cylinder, and the two ends of the limit cylinder... The outer wall of the first limiting slide is slidably connected to the inner wall of the two second limiting slides respectively. A first electric push rod is fixedly provided on one side of the inner wall of the first limiting slide, and the output end of the first electric push rod is fixedly connected to one side of the adjustment frame. A limiting block is fixedly provided on one side of the bottom of the support pad. A first needle tube is fixedly provided at the bottom of the blood drawing syringe. A fluorescence detector is fixedly provided on one side of the bottom of the support cylinder. A second electric push rod is fixedly provided on one side of the inner wall of each of the two second limiting slides, and the output ends of the two second electric push rods are fixedly connected to the two sides of the limiting cylinder respectively.

[0012] Preferably, the automatic dispensing mechanism includes a third limiting slide groove located at the middle of the top of the sampling machine body. A support frame is slidably connected to the inner wall of the third limiting slide groove. A fourth limiting slide groove is provided at both ends of the support frame. A third electric push rod is fixedly provided at the bottom of the inner wall of each of the two fourth limiting slide grooves.

[0013] Preferably, the inner walls of the two fourth limiting slide grooves are slidably connected to lifting frames, and the output ends of the two third electric push rods are respectively fixedly connected to the bottom of the two lifting frames. A through hole is opened on one side of the top of the two lifting frames, and a blood drainage syringe is inserted through the inner wall of one of the through holes. A second needle tube is fixedly provided at the bottom of the blood drainage syringe.

[0014] Preferably, the inner walls of the two through holes and the inner wall of the limiting cylinder are provided with annular limiting grooves, the tops of the two lifting frames are provided with connecting grooves at the edges of the two through holes and on one side of the limiting cylinder, and the inner wall of each connecting groove is connected to the inner wall of each annular limiting groove. The outer wall of the blood drawing syringe and one side of the outer wall of the blood draining syringe are both fixed with arc-shaped sliders.

[0015] Preferably, a fourth electric push rod is fixedly provided on one side of the inner wall of the third limiting groove, and the output end of the fourth electric push rod is fixedly connected to one side of the support frame. The blood drainage syringe and the blood drawing syringe are connected by a flexible tube.

[0016] Preferably, the blood storage component includes multiple collection slots equidistantly arranged on both sides of the top of the sampling machine body. A pressure sensor is fixedly installed at the bottom of the inner wall of each collection slot, and a spring is fixedly installed on the inner wall of each collection slot at the outer edge of each pressure sensor. A buffer pad is fixedly installed on the top of each spring.

[0017] Preferably, the inner wall of the sampling machine body is provided with circulation installation grooves at both ends of the outer edges of multiple collection grooves, and a condenser pipe is installed on the inner wall of each circulation installation groove.

[0018] Preferably, multiple ultraviolet germicidal lamps are installed at equal distances on both sides of one end of the inner wall of the working groove. A fifth limiting groove is provided at the bottom of the inner wall of the working groove, and the outer wall of the limiting block is slidably connected to the inner wall of the fifth limiting groove. A lead screw is rotatably connected to the inner wall of the fifth limiting groove, and the outer wall of the lead screw is threadedly connected to the inner wall of the limiting block. One end of the lead screw passes through the back of the sampling machine body and is connected to a motor.

[0019] Preferably, an intelligent control panel is installed on one side of the front of the sampling machine body, and the electric airbag, the first electric push rod, the second electric push rod, the fluorescence detector, the third electric push rod, the fourth electric push rod, the pressure sensor, the condenser tube, and the motor are all electrically connected to an external power supply through the intelligent control panel.

[0020] The technical effects and advantages of this invention are as follows:

[0021] 1. This invention features an automatic blood-drawing mechanism. Before blood collection, medical staff apply medical fluorescent powder to the surface of the blood vessels. Then, a support plate slides out of the working slot, and the patient places their arm on the support plate with the upper arm area inside the limiting frame. The device automatically activates an electric airbag to compress the patient's upper arm, causing the blood vessels to become congested. At this time, the fluorescent detector identifies and detects the fluorescent powder area, and then activates a second electric push rod to push the limiting cylinder down in the support cylinder, which in turn pulls the blood-drawing needle down, allowing the first needle to be inserted into the fluorescent area and then into the blood vessel to draw blood. After the blood draw is completed, the electric airbag contracts, and the patient can withdraw their arm. The wound can be disinfected with disposable sterile cotton. This eliminates the need for medical staff to manually tie blood vessels or manually draw blood. Patients can complete the blood-drawing operation themselves on the main body of the sampling machine. During peak testing periods, this reduces waiting time for sampling, lowers the risk of errors caused by medical staff fatigue, and improves the efficiency of medical testing.

[0022] 2. This invention features an automatic dispensing mechanism. After the automatic blood collection mechanism draws blood from the patient, it introduces the blood into a blood-dispensing syringe through a flexible tube according to the required amount. The intelligent control panel activates the fourth electric push rod to move the support frame, thereby positioning the second needle tube against the test tubes in each collection slot. The third electric push rod then pulls the lifting frame down in the fourth limit slide groove, causing the second needle tube to puncture the rubber seal at the test tube port and enter the test tube to introduce blood for collection. In conjunction with the blood storage component, the blood volume is identified. Then, by extending and retracting the third electric push rod, the lifting frame is raised, and the support frame moves to the next collection slot for blood introduction. This achieves the purpose of automatic blood dispensing, eliminating the need for manual collection and dispensing by staff. Before blood is drawn, the patient can place their test tubes in the collection slot and wait for dispensing and collection, thereby improving the efficiency of blood collection.

[0023] 3. This invention, through the setting of a blood storage component, involves placing blood storage tubes in various collection slots during the blood storage process. These tubes are supported on a buffer pad and springs are compressed. As the automatic dispensing mechanism introduces blood into the tubes, the weight of the tubes increases, further compressing the springs and causing the buffer pad to continuously descend until it presses against the pressure sensor below. This triggers a command to the intelligent control panel, causing the third electric push rod to extend and pull out the second needle from the tube, moving it to the next collection slot for blood storage. After fresh blood is introduced into the tubes, the temperature around the collection slots is rapidly reduced by the condenser tubes in the circulation tank, which cools the blood while the blood extraction is still in progress. This refrigerates and preserves the blood in the tubes, ensuring that the blood extracted earlier maintains a certain level of freshness during the extraction period, preventing spoilage and reducing the impact on the accuracy of subsequent blood tests.

[0024] Other features and advantages of the invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objects and other advantages of the invention may be realized and obtained by means of the structures pointed out in the description, claims and drawings. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a schematic diagram of the entire invention;

[0027] Figure 2 This is a schematic diagram of the assembly and operation of the blood-drawing syringe and the blood-draining syringe of the present invention;

[0028] Figure 3 This is a schematic diagram of the automatic blood-drawing mechanism of the present invention;

[0029] Figure 4 This is a schematic diagram of the structure for installing the blood-drawing syringe on the adjustment frame of the present invention;

[0030] Figure 5 This is an appendix to the specification of this invention. Figure 2 Enlarged structural diagram at point A;

[0031] Figure 6 This is a schematic diagram of the automatic dispensing mechanism of the present invention;

[0032] Figure 7 This is an appendix to the specification of this invention. Figure 6 Enlarged structural diagram at point B;

[0033] Figure 8 This is an appendix to the specification of this invention. Figure 6 Enlarged structural diagram at point C;

[0034] Figure 9 This is a schematic diagram of the internal structure of the sampling machine body of the present invention;

[0035] Figure 10 This is an appendix to the specification of this invention. Figure 9 Enlarged structural diagram at point D;

[0036] Figure 11 This is an appendix to the specification of this invention. Figure 9 Enlarged structural diagram at point E;

[0037] Figure 12 This is a schematic diagram of the back of the main body of the sampling machine of the present invention.

[0038] In the diagram: 1. Sampling machine body; 2. Working trough; 3. Automatic blood collection mechanism; 301. Support pad; 302. Limiting frame; 303. Electric airbag; 304. First limiting slide groove; 305. Adjusting frame; 306. Support cylinder; 307. Limiting cylinder; 308. Blood collection syringe; 309. Second limiting slide groove; 310. First electric push rod; 311. Limiting block; 312. First needle tube; 313. Fluorescence detector; 314. Second electric push rod; 4. Automatic dispensing mechanism; 401. Third limiting slide groove; 402. Support frame; 4 03. Fourth limiting slide groove; 404. Third electric push rod; 405. Lifting frame; 406. Through hole; 407. Blood drainage syringe; 408. Second needle tube; 5. Annular limiting groove; 6. Connecting groove; 7. Arc-shaped slider; 8. Fourth electric push rod; 9. Blood storage assembly; 901. Collection tank; 902. Pressure sensor; 903. Spring; 904. Buffer pad; 905. Circulation installation groove; 906. Condenser tube; 10. Ultraviolet germicidal lamp; 11. Fifth limiting slide groove; 12. Lead screw; 13. Motor; 14. Intelligent control panel. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0040] This invention provides, for example Figure 1-12 The blood collection device for medical testing shown includes a sampling machine body 1 and a working tank 2. The working tank 2 is located in the middle of one side of the sampling machine body 1. An automatic blood collection mechanism 3 is installed inside the working tank 2. An automatic dispensing mechanism 4 and a blood storage component 9 are provided at the upper end of the sampling machine body 1.

[0041] The automatic blood-drawing mechanism 3 includes a support plate 301 inserted into the working slot 2. A limit frame 302 is installed on one side of the top of the support plate 301. An electric airbag 303 is installed on the inner wall of the limit frame 302. A first limiting groove 304 is opened on the other side of the top of the support plate 301. An adjusting frame 305 is slidably connected to the inner wall of the first limiting groove 304. A support cylinder 306 is fixedly installed on the top of the adjusting frame 305. A limit cylinder 307 is slidably connected to the inner wall of the support cylinder 306. A blood-drawing syringe 308 is inserted into the inner wall of the limit cylinder 307. Second limiting grooves 309 are opened on both sides of the inner wall of the support cylinder 306. The outer walls at both ends are slidably connected to the inner walls of the two second limiting slide grooves 309 respectively. A first electric push rod 310 is fixedly provided on one side of the inner wall of the first limiting slide groove 304, and the output end of the first electric push rod 310 is fixedly connected to one side of the adjusting frame 305. A limiting block 311 is fixedly provided on one side of the bottom of the support pad 301. A first needle tube 312 is fixedly provided at the bottom of the blood drawing syringe 308. A fluorescence detector 313 is fixedly provided on one side of the bottom of the support cylinder 306. A second electric push rod 314 is fixedly provided on one side of the inner wall of each of the two second limiting slide grooves 309, and the output ends of the two second electric push rods 314 are fixedly connected to both sides of the limiting cylinder 307 respectively.

[0042] During use, since the blood-drawing syringe 308, the blood-extraction syringe 407, the first needle tube 312, and the second needle tube 408 are all disposable items, and the blood-drawing syringe 308 and the blood-extraction syringe 407 are connected by a flexible tube, as detailed in the instruction manual. Figure 2As shown, when a patient has their blood drawn, medical staff first apply medical fluorescent powder to the surface of the blood vessels. Then, the support plate 301 slides out of the working slot 2. The patient then fixes the blood-drawing syringe 308 and the blood-draining syringe 407 into the through holes 406 at the upper end of the limiting cylinder 307 and the lifting frame 405, respectively. The patient then places their arm on the support plate 301, with the upper arm area positioned inside the limiting frame 302. At this time, the device automatically activates the electric airbag 303 to compress the patient's upper arm, causing the blood vessels to become congested. The hand passes through the adjusting frame 305, with the area of ​​the forearm coated with medical fluorescent powder facing the adjusting frame 305. At this time, the fluorescence detector 313 identifies and detects the fluorescent powder area. The system automatically draws blood. Upon activation, the second electric push rod 314 pushes the limiting cylinder 307 down through the support cylinder 306, which in turn pulls the blood-drawing syringe 308 down, allowing the first needle tube 312 to insert into the fluorescent area and then into the blood vessel to draw blood. After the blood draw is complete, the electric airbag 303 contracts, allowing the patient to withdraw their arm. A disposable sterile cotton swab is then used to disinfect the wound. During this process, there is no need for medical staff to manually tie a tourniquet or manually draw blood. The patient can complete the blood draw themselves on the main body 1 of the sampling machine. This reduces waiting time during peak testing periods, lowers the risk of errors caused by medical staff fatigue, and improves the efficiency of medical testing.

[0043] Furthermore, the automatic dispensing mechanism 4 includes a third limiting slide 401 located at the top center of the sampling machine body 1. A support frame 402 is slidably connected to the inner wall of the third limiting slide 401. A fourth limiting slide 403 is provided at both ends of the support frame 402. A third electric push rod 404 is fixedly provided at the bottom of the inner wall of each of the two fourth limiting slides 403. The support frame 402 can move back and forth in the third limiting slide 401 by being pushed by the fourth electric push rod 8, thereby moving the second needle tube 408 above each collection tank 901 to collect blood.

[0044] The inner walls of the two fourth limiting slide grooves 403 are slidably connected to lifting frames 405, and the output ends of the two third electric push rods 404 are respectively fixedly connected to the bottom of the two lifting frames 405. A through hole 406 is provided on one side of the top of each of the two lifting frames 405. A blood-draining syringe 407 is inserted through the inner wall of one of the through holes 406. A second needle tube 408 is fixedly provided at the bottom of the blood-draining syringe 407. After the automatic blood-drawing mechanism 3 draws blood from the patient, it introduces the blood into the blood-draining syringe 407 through a flexible tube according to the required amount. The intelligent control panel 14 moves the support frame 402 by activating the fourth electric push rod 8, thereby positioning the second needle tube 408 towards each collection slot 901. The test tube is opened, and the third electric push rod 404 is activated to pull the lifting frame 405 down in the fourth limiting slide groove 403. This causes the second needle tube 408 to puncture the rubber seal at the test tube port and enter the test tube to introduce blood for collection. The blood volume is identified in conjunction with the blood storage component 9. Then, the lifting frame 405 is raised by extending and retracting the third electric push rod 404, and the support frame 402 moves to the next collection slot 901 to introduce blood. This achieves the purpose of automatic blood collection and dispensing, eliminating the need for manual collection and dispensing by staff. Before blood is drawn, the patient can place the test tube they bring in into the collection slot 901 and wait for dispensing and collection, thereby improving the efficiency of blood collection.

[0045] Furthermore, annular limiting grooves 5 are provided on the inner walls of the two through holes 406 and the inner wall of the limiting cylinder 307. Connecting grooves 6 are provided on the top of the two lifting frames 405 at the edges of the two through holes 406 and on one side of the limiting cylinder 307, and the inner wall of each connecting groove 6 communicates with the inner wall of each annular limiting groove 5. Arc-shaped sliders 7 are fixed on one side of the outer wall of the blood drawing syringe 308 and the outer wall of the blood draining syringe 407. When the patient inserts the blood drawing syringe 308 and the blood draining syringe 407, they are separated... Do not insert into the limiting cylinder 307 or the through hole 406 on the lifting frame 405. During insertion, the arc-shaped sliders 7 on the outer walls of both are aligned with the connecting groove 6, so that the arc-shaped sliders 7 enter the limiting cylinder 307 and the through hole 406 respectively, so that they fit with the annular limiting groove 5 therein. Then rotate the blood drawing syringe 308 and the blood drainage syringe 407 respectively, so that the two arc-shaped sliders 7 slide into the inside of the annular limiting groove 5, so that they are limited and cannot be dislodged. During blood drawing and blood drainage, the syringe will not be dislodged.

[0046] A fourth electric push rod 8 is fixedly installed on one side of the inner wall of the third limiting slide groove 401, and the output end of the fourth electric push rod 8 is fixedly connected to one side of the support frame 402. The blood drainage syringe 407 and the blood collection syringe 308 are connected by a flexible tube, as shown in the instruction manual. Figure 9 As shown, the fourth electric push rod 8 is located inside the third limiting slide groove 401;

[0047] Furthermore, the blood storage component 9 includes multiple collection slots 901 equidistantly located on both sides of the top of the sampling machine body 1. A pressure sensor 902 is fixedly installed at the bottom of the inner wall of each collection slot 901. A spring 903 is fixedly installed on the inner wall of each collection slot 901 at the outer edge of each pressure sensor 902. A buffer pad 904 is fixedly installed on the top of each spring 903. During the blood storage process, the blood storage tube is placed in each collection slot 901, supported on the buffer pad 904 and the spring 903 is compressed. As the automatic dispensing mechanism 4 introduces blood into the test tube, the weight of the test tube increases, thereby compressing the spring 903 and causing the buffer pad 904 to continuously descend until it presses against the pressure sensor 902 below. Then, a command is sent to the intelligent control panel 14, causing the third electric push rod 404 to extend and pull out the second needle tube 408 from the test tube, moving it to the next collection slot 901 for blood storage.

[0048] The inner walls of the main body 1 of the sampling machine are provided with circulation installation slots 905 at both ends of the outer edges of multiple collection slots 901. Each circulation installation slot 905 is equipped with a condenser tube 906 on its inner wall. After fresh blood is introduced into the test tube, since the blood extraction is still in progress, the temperature around the collection slot 901 is rapidly reduced by the condenser tube 906 in the circulation installation slot 905, thereby refrigerating and preserving the blood in the test tube. This ensures that the blood extracted in advance can maintain a certain degree of freshness during the blood extraction period, prevent deterioration, and reduce the impact on the accuracy of subsequent blood tests.

[0049] Furthermore, multiple ultraviolet germicidal lamps 10 are installed at equal intervals on both sides of one end of the inner wall of the working trough 2. A fifth limiting slide groove 11 is opened at the bottom of the inner wall of the working trough 2, and the outer wall of the limiting block 311 is slidably connected to the inner wall of the fifth limiting slide groove 11. A lead screw 12 is rotatably connected to the inner wall of the fifth limiting slide groove 11, and the outer wall of the lead screw 12 is threadedly connected to the inner wall of the limiting block 311. One end of the lead screw 12 passes through the back of the sampling machine body 1 and is connected to a motor 13. When drawing blood, the motor 13 is started to rotate the lead screw 12, so that it is threadedly connected to the limiting block 311, thereby moving the support pad 301 out of the working trough 2 to prepare for blood drawing. After blood drawing is completed, the motor 13 is started in reverse to store the support pad 301 back into the working trough 2, and then the ultraviolet germicidal lamps 10 are started to continuously sterilize the support pad 301, which is convenient for users to continue to use later and reduces the risk of bacterial transmission.

[0050] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A medical testing blood collection device, comprising a sampling machine body (1) and a working tank (2), characterized in that: The working trough (2) is located in the middle of one side of the sampling machine body (1). An automatic blood collection mechanism (3) is installed inside the working trough (2). An automatic dispensing mechanism (4) and a blood storage component (9) are provided at the upper end of the sampling machine body (1). The automatic blood-drawing mechanism (3) includes a support pad (301) inserted into the working groove (2). A limit frame (302) is installed on one side of the top of the support pad (301). An electric airbag (303) is installed on the inner wall of the limit frame (302). A first limiting groove (304) is provided on the other side of the top of the support pad (301). An adjusting frame (305) is slidably connected to the inner wall of the first limiting groove (304). A support cylinder (306) is fixedly provided on the top of the adjusting frame (305). A limit cylinder (307) is slidably connected to the inner wall of the support cylinder (306). A blood-drawing syringe (308) is inserted into the inner wall of the limit cylinder (307). A second limiting groove (309) is provided on both sides of the inner wall of the support cylinder (306). The outer walls of the two ends of the limiting cylinder (307) are slidably connected to the inner walls of the two second limiting grooves (309), and a first electric push rod (310) is fixedly provided on one side of the inner wall of the first limiting groove (304). The output end of the first electric push rod (310) is fixedly connected to one side of the adjusting frame (305). A limiting block (311) is fixedly provided on one side of the bottom of the support pad (301). A first needle tube (312) is fixedly provided at the bottom of the blood drawing syringe (308). A fluorescence detector (313) is fixedly provided on one side of the bottom of the support cylinder (306). A second electric push rod (314) is fixedly provided on one side of the inner wall of each of the two second limiting grooves (309), and the output ends of the two second electric push rods (314) are fixedly connected to both sides of the limiting cylinder (307).

2. The medical blood collection device according to claim 1, characterized in that: The automatic dispensing mechanism (4) includes a third limiting slide groove (401) located at the top center of the sampling machine body (1). A support frame (402) is slidably connected to the inner wall of the third limiting slide groove (401). A fourth limiting slide groove (403) is provided at both ends of the support frame (402). A third electric push rod (404) is fixedly provided at the bottom of the inner wall of each of the two fourth limiting slide grooves (403).

3. The medical blood collection device according to claim 2, characterized in that: The inner walls of the two fourth limiting slide grooves (403) are slidably connected with lifting frames (405), and the output ends of the two third electric push rods (404) are fixedly connected to the bottom of the two lifting frames (405). A through hole (406) is opened on one side of the top of the two lifting frames (405). A blood drainage syringe (407) is inserted through the inner wall of one of the through holes (406), and a second needle tube (408) is fixedly provided at the bottom of the blood drainage syringe (407).

4. The medical blood collection device according to claim 3, characterized in that: The inner walls of the two through holes (406) and the inner wall of the limiting cylinder (307) are provided with annular limiting grooves (5). The tops of the two lifting frames (405) are provided with connecting grooves (6) at the edges of the two through holes (406) and on one side of the limiting cylinder (307). The inner wall of each connecting groove (6) is connected to the inner wall of each annular limiting groove (5). The outer wall of the blood drawing syringe (308) and one side of the outer wall of the blood draining syringe (407) are fixedly provided with arc-shaped sliders (7).

5. A medical blood collection device according to claim 1, characterized in that: A fourth electric push rod (8) is fixedly provided on one side of the inner wall of the third limiting slide groove (401), and the output end of the fourth electric push rod (8) is fixedly connected to one side of the support frame (402). The blood drainage syringe (407) and the blood drawing syringe (308) are connected by a flexible tube.

6. A medical blood collection device according to claim 1, characterized in that: The blood storage component (9) includes multiple collection slots (901) evenly spaced on both sides of the top of the sampling machine body (1). A pressure sensor (902) is fixedly installed at the bottom of the inner wall of each collection slot (901). A spring (903) is fixedly installed at the outer edge of each pressure sensor (902) on the inner wall of each collection slot (901). A buffer pad (904) is fixedly installed at the top of each spring (903).

7. A medical blood collection device according to claim 6, characterized in that: The inner walls of the main body (1) of the sampling machine are provided with circulation installation slots (905) at both ends of the outer edges of multiple collection slots (901), and each circulation installation slot (905) is provided with a condenser pipe (906) installed on its inner wall.

8. A medical blood collection device according to claim 1, characterized in that: Multiple ultraviolet germicidal lamps (10) are installed at equal distances on both sides of one end of the inner wall of the working groove (2). A fifth limiting slide groove (11) is provided at the bottom of the inner wall of the working groove (2), and the outer wall of the limiting block (311) is slidably connected to the inner wall of the fifth limiting slide groove (11). A lead screw (12) is rotatably connected to the inner wall of the fifth limiting slide groove (11), and the outer wall of the lead screw (12) is threadedly connected to the inner wall of the limiting block (311). One end of the lead screw (12) passes through the back of the sampling machine body (1) and is connected to a motor (13).

9. A medical blood collection device according to claim 8, characterized in that: The sampling machine body (1) has an intelligent control panel (14) installed on one side of its front. The electric airbag (303), the first electric push rod (310), the second electric push rod (314), the fluorescence detector (313), the third electric push rod (404), the fourth electric push rod (8), the pressure sensor (902), the condenser (906), and the motor (13) are all electrically connected to an external power supply through the intelligent control panel (14).

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