Blood sampling device with self-filtering function

Abstract

The invention discloses a blood sampling device with a self-filtering function, and belongs to the field of blood sampling devices.The blood sampling device comprises a base, a rotating groove is formed in the top end face of the base, a barrel is rotatably connected to the interior of the rotating groove, a discharging window is formed in the middle of the outer side face of the barrel, and a vacuum blood collection tube is arranged in the discharging window; a jacking mechanism is arranged below the vacuum blood collection tube, and a through hole is formed in the top end of the cylinder body above the vacuum blood collection tube; a supporting cylinder is fixedly connected to the edge of one side of the top end face of the cylinder, an annular window is formed in the outer side face of the supporting cylinder, a U-shaped groove is formed in the top end face of the supporting cylinder, a puncture part is arranged in the U-shaped groove, a filter pipe is fixedly connected to the top end of the puncture part, a blood collection pipe is fixedly connected to the top end of the filter pipe, and a needle is fixedly connected to one end of the blood collection pipe. According to the invention, impurities contained in blood can be effectively filtered out, errors of subsequent detection results are avoided, and the accuracy of the detection results is improved.

Description

Technical Field

[0001] The invention relates to a blood sampling device, in particular to a blood sampling device with a self-filtering function. Background Art

[0002] By detecting one or more properties of the blood in the body, certain medical conditions or conditions of the human body can be detected. In some examples, such medical conditions can be detected by extracting a blood sample from the body and detecting one or more properties of the extracted blood using a sensor or other system outside the body.

[0003] When extracting blood samples from the body, a corresponding blood sampling device is usually required. During the blood collection process, the existing blood sampling device cannot filter out impurities contained in the blood, which causes errors in subsequent test results. Therefore, how to avoid impurities in the blood affecting the accuracy of the test results and add a self-filtering function to the sampling device is a difficult problem that urgently needs to be solved.

[0004] Therefore, those skilled in the art provide a blood sampling device with a self-filtering function to solve the problems raised in the above background technology. Summary of the invention

[0005] The purpose of the present invention is to provide a blood sampling device with a self-filtering function, which can effectively filter out impurities contained in the blood, avoid errors in subsequent test results, improve the accuracy of the test results, and solve the problems raised in the above-mentioned background technology.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A blood sampling device with a self-filtering function comprises a base, a top surface of the base is provided with a rotating groove, and a barrel is rotatably connected inside the rotating groove, a discharge window is provided at the middle position of the outer side surface of the barrel, and a vacuum blood collection tube is provided inside the discharge window, a lifting mechanism is provided below the vacuum blood collection tube, and a through hole is provided at the top of the barrel above the vacuum blood collection tube; a support tube is fixedly connected to a side edge of the top surface of the barrel, and an annular window is provided on the outer side surface of the support tube, a U-shaped groove is provided on the top surface of the support tube, and a puncture portion is provided in the U-shaped groove, a filter tube is fixedly connected to the top of the puncture portion, and a blood collection tube is fixedly connected to the top of the filter tube, and a needle is fixedly connected to one end of the blood collection tube.

[0008] As a further solution of the present invention: the lifting mechanism specifically includes: a lifting groove opened at the lower part of the cylinder, a telescopic motor is fixedly connected to the bottom end of the lifting groove, and the top output shaft of the telescopic motor is fixedly connected to a lifting seat, a slot is opened on the top surface of the lifting seat, and the bottom of the vacuum blood collection tube is inserted into the slot.

[0009] As a further solution of the present invention: a power source is embedded in one side of the base, and a switch is fixedly connected to one side of the base, and the power source and the switch are electrically connected to the telescopic motor.

[0010] As a further solution of the present invention: a rotating shaft is fixedly connected to the two side surfaces of the cylinder, and the rotating shaft is rotatably connected to the inner wall of the rotating groove, the cylinder in the rotating groove is in a vertical state, and a first arc-shaped strong magnet is embedded on the inner wall of the rotating groove on one side of the cylinder, the first arc-shaped strong magnet is in contact with and matches the cylinder, and a second arc-shaped strong magnet is embedded on the inner wall of the rotating groove on the other side of the cylinder, and the cylinder can be rotated forty-five degrees around the rotating shaft to contact and match the second arc-shaped strong magnet.

[0011] As a further solution of the present invention: the puncture part specifically includes: an upper diaphragm and a lower diaphragm, an axle rod is fixedly connected between the upper diaphragm and the lower diaphragm, and the axle rod is stuck in the U-shaped groove and matches it, the bottom end surface of the upper diaphragm abuts against the upper opening of the U-shaped groove, the lower diaphragm abuts against the lower opening of the U-shaped groove, and the bottom end of the lower diaphragm is fixedly connected with a puncture needle, and the puncture needle is connected to the filter tube.

[0012] As a further solution of the present invention: a filter cavity is provided inside the filter tube, and a filter cartridge is fixedly connected to the bottom end surface of the filter cavity, a boss is fixedly connected to the top end of the filter cartridge, and a guide column is fixedly connected to the inside of the filter cartridge, a first gap groove is formed between the outer wall of the filter cartridge and the inner wall of the filter cavity, and a second gap groove is formed between the inner wall of the filter cartridge and the outer side surface of the guide column, a plurality of evenly distributed first cavities connected to the second gap grooves are provided at the bottom end of the outer side surface of the guide column, and a second cavity connected to the plurality of first cavities is provided at the bottom end of the guide column, and the bottom end of the second cavity is connected to the puncture portion.

[0013] As a further solution of the present invention: the length of the discharge window is greater than the length of the vacuum blood collection tube, and the diameter of the vacuum blood collection tube is smaller than the diameter of the through hole.

[0014] Compared with the prior art, the present invention has the following beneficial effects:

[0015] 1. The present application sets up a filter tube. After the blood enters the filter cavity of the filter tube, the blood is buffered and shunted by the convex head, so that the blood quickly fills the first gap groove. Subsequently, the blood in the first gap groove passes through the filter cartridge to achieve a self-filtration effect. The blood passing through the filter cartridge enters the second gap groove. Then, the blood in the second gap groove enters the second cavity from the first cavity, and then enters the puncture needle from the second cavity. The two gap grooves cooperate with each other to quickly and fully complete blood filtration, thereby effectively filtering out impurities contained in the blood, avoiding errors in subsequent test results, and improving the accuracy of test results.

[0016] 2. The present application provides a cylinder, a support cylinder and a lifting mechanism. When in use, the vacuum blood collection tube is placed in the discharge window, and the vacuum blood collection tube is lifted up by the lifting mechanism. The top of the lifted vacuum blood collection tube passes through the through hole until the puncture needle of the puncture part is inserted into the vacuum blood collection tube. During the whole process, not only can the vacuum blood collection tube be quickly installed on the lifting seat for lifting, but also the medical staff can complete the insertion and removal of the puncture part and the vacuum blood collection tube without touching the puncture part, thereby avoiding contamination of the puncture part by the medical staff during the insertion and removal process, or the puncture part stabbing the medical staff, thereby improving safety.

[0017] 3. The staff needs to attach the barcode recording personal information on the surface of the vacuum blood collection tube. The present application can directly attach the barcode to the vacuum blood collection tube through the discharge window set up. During the attachment process, it is only necessary to rotate the cylinder forty-five degrees to switch it from contact with the first arc-shaped strong magnet to contact with the second arc-shaped strong magnet. The first arc-shaped strong magnet and the second arc-shaped strong magnet can be magnetically adsorbed with the cylinder to improve the stability of the cylinder in the vertical state and the forty-five degree inclined state. When the cylinder is in a forty-five degree inclined state, it is more convenient for medical staff to attach the barcode. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a structural schematic diagram of a blood sampling device with a self-filtering function;

[0019] Figure 2 It is a structural schematic diagram of a cylinder in a blood sampling device with a self-filtering function;

[0020] Figure 3 It is a structural schematic diagram of a puncture part in a blood sampling device with a self-filtering function;

[0021] Figure 4 It is a structural schematic diagram of a filter tube in a blood sampling device with a self-filtering function;

[0022] Figure 5 It is a structural view of a blood sampling device with a self-filtration function after the cylinder is rotated forty-five degrees;

[0023] Figure 6 A side view of a base of a blood sampling device with a self-filtering function;

[0024] Figure 7 A blood sampling device with self-filtering function Figure 1 A magnified view of part A;

[0025] Figure 8 A blood sampling device with self-filtering function Figure 4 Enlarged view of part B.

[0026] In the figure: 1, base; 2, rotating groove; 3, cylinder; 4, rotating shaft; 5, discharge window; 6, lifting groove; 7, telescopic motor; 8, first arc-shaped strong magnet; 9, second arc-shaped strong magnet; 10, power supply; 11, switch; 12, lifting seat; 13, slot; 14, vacuum blood collection tube; 15, through hole; 16, support tube; 17, annular window; 18, U-shaped groove; 19, filter tube; 20, blood collection tube; 21, needle; 22, upper diaphragm; 23, shaft; 24, lower diaphragm; 25, puncture needle; 26, filter cavity; 27, filter cylinder; 28, convex head; 29, first gap groove; 30, guide column; 31, second gap groove; 32, first cavity; 33, second cavity. DETAILED DESCRIPTION

[0027] In order to better understand the above technical solution, the above technical solution will be described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0028] See also Figures 1 to 8 In an embodiment of the present invention, a blood sampling device with a self-filtering function comprises a base 1, a rotating groove 2 is provided on the top surface of the base 1, and a barrel 3 is rotatably connected inside the rotating groove 2, a discharge window 5 is provided at the middle position of the outer side surface of the barrel 3, and a vacuum blood collection tube 14 is provided inside the discharge window 5, a lifting mechanism is provided below the vacuum blood collection tube 14, and a through hole 15 is provided at the top of the barrel 3 above the vacuum blood collection tube 14; a support tube 16 is fixedly connected to one side edge of the top surface of the barrel 3, and an annular window 17 is provided on the outer side surface of the support tube 16, a U-shaped groove 18 is provided on the top surface of the support tube 16, and a puncture portion is provided in the U-shaped groove 18, a filter tube 19 is fixedly connected to the top of the puncture portion, and a blood collection tube 20 is fixedly connected to the top of the filter tube 19, and a needle 21 is fixedly connected to one end of the blood collection tube 20. The present application can effectively filter out impurities contained in the blood, avoid errors in subsequent test results, and improve the accuracy of the test results.

[0029] In this embodiment, the lifting mechanism specifically includes: a lifting groove 6 provided at the lower part of the cylinder 3, a telescopic motor 7 is fixedly connected to the bottom end of the lifting groove 6, and a lifting seat 12 is fixedly connected to the top output shaft of the telescopic motor 7, and a slot 13 is provided on the top surface of the lifting seat 12, and the bottom of the vacuum blood collection tube 14 is inserted into the slot 13. Through the provided cylinder 3, the support cylinder 16 and the lifting mechanism, when in use, the vacuum blood collection tube 14 is placed in the discharge window 5, and the vacuum blood collection tube 14 is lifted up by the lifting mechanism, and the top of the lifted vacuum blood collection tube 14 passes through the through hole 15 until the puncture needle 25 of the puncture part is inserted into the vacuum blood collection tube 14. During the whole process, not only can the vacuum blood collection tube 14 be quickly installed on the lifting seat 12 for lifting, but also the medical staff can complete the insertion and removal of the puncture part and the vacuum blood collection tube 14 without touching the puncture part, thereby avoiding the medical staff from contaminating the puncture part during the insertion and removal process, or the puncture part stabbing the medical staff, thereby improving safety.

[0030] In this embodiment, a power source 10 is embedded in one side of the base 1, and a switch 11 is fixedly connected to one side of the base 1. The power source 10 and the switch 11 are electrically connected to the telescopic motor 7. The medical staff can control the operating state of the telescopic motor 7 through the switch 11.

[0031] In this embodiment: the two side surfaces of the cylinder 3 are fixedly connected with a rotating shaft 4, and the rotating shaft 4 is rotatably connected to the inner wall of the rotating groove 2, the cylinder 3 in the rotating groove 2 is in a vertical state, and a first arc-shaped strong magnet 8 is embedded on the inner wall of the rotating groove 2 on one side of the cylinder 3, the first arc-shaped strong magnet 8 is in contact with and matches the cylinder 3, and a second arc-shaped strong magnet 9 is embedded on the inner wall of the rotating groove 2 on the other side of the cylinder 3, and the cylinder 3 can be rotated forty-five degrees around the rotating shaft 4 and then contact and match the second arc-shaped strong magnet 9. The staff needs to attach the barcode recording personal information on the surface of the vacuum blood collection tube 14. The present application can directly attach the barcode to the vacuum blood collection tube 14 through the discharge window 5 set up. During the attachment process, it is only necessary to rotate the cylinder 3 forty-five degrees to switch it from contact with the first arc-shaped strong magnet 8 to contact with the second arc-shaped strong magnet 9. The first arc-shaped strong magnet 8 and the second arc-shaped strong magnet 9 can be magnetically adsorbed with the cylinder 3 to improve the stability of the cylinder 3 in the vertical state and the forty-five degree inclined state. When the cylinder 3 is in the forty-five degree inclined state, it is more convenient for medical staff to attach the barcode.

[0032] In this embodiment: the puncture part specifically includes: an upper diaphragm 22 and a lower diaphragm 24, a shaft 23 is fixedly connected between the upper diaphragm 22 and the lower diaphragm 24, and the shaft 23 is stuck inside the U-shaped groove 18 and matches it, the bottom end surface of the upper diaphragm 22 abuts against the upper opening of the U-shaped groove 18, the lower diaphragm 24 abuts against the lower opening of the U-shaped groove 18, and a puncture needle 25 is fixedly connected to the bottom end of the lower diaphragm 24, and the puncture needle 25 is connected to the filter tube 19. When the medical staff inserts the shaft 23 of the puncture part into the U-shaped groove 18, the bottom end surface of the upper diaphragm 22 abuts against the upper opening of the U-shaped groove 18, and the lower diaphragm 24 abuts against the lower opening of the U-shaped groove 18, thereby effectively preventing the puncture needle 25 from deviating up and down in the U-shaped groove 18.

[0033] In this embodiment: a filter cavity 26 is provided inside the filter tube 19, and a filter cartridge 27 is fixedly connected to the bottom end surface of the filter cavity 26, a boss 28 is fixedly connected to the top end of the filter cartridge 27, and a guide column 30 is fixedly connected to the inside of the filter cartridge 27, a first gap groove 29 is formed between the outer wall of the filter cartridge 27 and the inner wall of the filter cavity 26, and a second gap groove 31 is formed between the inner wall of the filter cartridge 27 and the outer side surface of the guide column 30, a plurality of evenly distributed first cavities 32 connected to the second gap grooves 31 are provided at the bottom end of the outer side surface of the guide column 30, and a second cavity 33 connected to the plurality of first cavities 32 is provided at the bottom end of the guide column 30, and the bottom end of the second cavity 33 is connected to the puncture portion. After the blood enters the filter cavity 26 of the filter tube 19, the blood is buffered and diverted by the convex head 28, so that the blood quickly fills the first gap groove 29. Subsequently, the blood in the first gap groove 29 passes through the filter cartridge 27 to achieve a self-filtration effect. The blood passing through the filter cartridge 27 enters the second gap groove 31. Then, the blood in the second gap groove 31 enters the second cavity 33 from the first cavity 32, and then enters the puncture needle 25 from the second cavity 33. The two gap grooves cooperate with each other to quickly and fully complete blood filtration, thereby effectively filtering out impurities contained in the blood, avoiding errors in subsequent test results, and improving the accuracy of the test results.

[0034] In this embodiment, the length of the discharge window 5 is greater than the length of the vacuum blood collection tube 14, and the diameter of the vacuum blood collection tube 14 is smaller than the diameter of the through hole 15. This arrangement can ensure that the vacuum blood collection tube 14 is smoothly placed in the discharge window 5.

[0035] The working principle of the present invention is: when in use, first, put the vacuum blood collection tube 14 into the discharge window 5, and insert the bottom end of the vacuum blood collection tube 14 into the slot 13 of the lifting seat 12 during the process. Then, the staff needs to attach the barcode recording personal information to the surface of the vacuum blood collection tube 14. The present application can directly attach the barcode to the vacuum blood collection tube 14 through the set discharge window 5. During the attachment process, it is only necessary to rotate the barrel 3 forty-five degrees to switch it from contact with the first arc-shaped strong magnet 8 to contact with the second arc-shaped strong magnet 9. The first arc-shaped strong magnet 8 and the second arc-shaped strong magnet 9 can be magnetically adsorbed with the barrel 3 to improve the stability of the barrel 3 in the vertical state and the forty-five degree inclined state. When the barrel 3 is in the forty-five degree inclined state, it is more convenient for medical staff to attach the barcode. After the barcode is attached, the barrel 3 is rotated to the vertical state.

[0036] Next, the medical staff inserts the shaft 23 of the puncture part into the U-shaped groove 18, and the bottom end surface of the upper diaphragm 22 rests on the upper opening of the U-shaped groove 18, and the lower diaphragm 24 rests on the lower opening of the U-shaped groove 18. Then, the medical staff inserts the needle 21 into the arm of the person whose blood is to be drawn, and then presses the switch 11. The power supply 10 supplies power to the telescopic motor 7, and the telescopic motor 7 extends the output shaft to push the lifting seat 12 upward, so that the vacuum blood collection tube 14 is lifted up, and the top of the lifted vacuum blood collection tube 14 passes through the through hole 15 until the puncture needle 25 of the puncture part is inserted into the vacuum blood collection tube 14.

[0037] After the puncture needle 25 is inserted into the vacuum blood collection tube 14, the blood of the person to be blood collected enters the filter tube 19 from the needle 21 along the blood collection tube 20, and the blood enters the vacuum blood collection tube 14 from the puncture needle 25 after being filtered by the filter tube 19. After the blood enters the filter cavity 26 of the filter tube 19, the blood is buffered and diverted by the convex head 28, so that the blood quickly fills the first gap groove 29, and then the blood in the first gap groove 29 passes through the filter cartridge 27 to achieve a self-filtration effect, and the blood passing through the filter cartridge 27 enters the second gap groove 31, and then the blood in the second gap groove 31 enters the second cavity 33 from the first cavity 32, and then enters the puncture needle 25 from the second cavity 33.

[0038] After the blood collection is completed, the medical staff presses the switch 11 again, and the telescopic motor 7 runs again to retract the output shaft and lower the lifting seat 12 to the initial position. Then, the medical staff directly pulls the vacuum blood collection tube 14 downward out of the through hole 15, and the vacuum blood collection tube 14 is separated from the puncture needle 25. Then, the vacuum blood collection tube 14 is taken out from the discharge window 5, and the medical staff takes the puncture part out of the U-shaped groove 18, and then takes another new puncture part and puts it into the U-shaped groove 18 to prepare for the next blood collection work.

[0039] Obviously, those skilled in the art can make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, if these modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include these modifications and variations.

[0040] What is described above is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A blood sampling device with self-filtration function, characterized in that: The invention comprises a base (1), a top surface of the base (1) is provided with a rotating groove (2), and a cylinder (3) is rotatably connected inside the rotating groove (2), a material discharge window (5) is provided in the middle position of the outer side surface of the cylinder (3), and a vacuum blood collection tube (14) is provided inside the material discharge window (5), a lifting mechanism is provided below the vacuum blood collection tube (14), and a through hole (15) is provided at the top of the cylinder (3) above the vacuum blood collection tube (14); A support cylinder (16) is fixedly connected to one side edge of the top surface of the cylinder body (3), and an annular window (17) is provided on the outer side surface of the support cylinder (16). A U-shaped groove (18) is provided on the top surface of the support cylinder (16), and a puncture portion is provided in the U-shaped groove (18). A filter tube (19) is fixedly connected to the top of the puncture portion, and a blood collection tube (20) is fixedly connected to the top of the filter tube (19), and a needle (21) is fixedly connected to one end of the blood collection tube (20).

2. A blood sampling device with self-filtration function according to claim 1, characterized in that: The lifting mechanism specifically comprises: a lifting groove (6) provided at the lower part of the cylinder (3); a telescopic motor (7) is fixedly connected to the bottom end of the lifting groove (6); and a lifting seat (12) is fixedly connected to the top output shaft of the telescopic motor (7); a slot (13) is provided on the top surface of the lifting seat (12); and the bottom of the vacuum blood collection tube (14) is inserted into the slot (13).

3. A blood sampling device with self-filtration function according to claim 2, characterized in that: A power source (10) is embedded in one side of the base (1), and a switch (11) is fixedly connected to one side of the base (1); the power source (10), the switch (11) and the telescopic motor (7) are electrically connected.

4. A blood sampling device with self-filtration function according to claim 1, characterized in that: The two side surfaces of the cylinder (3) are fixedly connected with a rotating shaft (4), and the rotating shaft (4) is rotatably connected to the inner wall of the rotating groove (2). The cylinder (3) in the rotating groove (2) is in a vertical state, and a first arc-shaped strong magnet (8) is embedded on the inner wall of the rotating groove (2) on one side of the cylinder (3), and the first arc-shaped strong magnet (8) contacts and matches with the cylinder (3), and a second arc-shaped strong magnet (9) is embedded on the inner wall of the rotating groove (2) on the other side of the cylinder (3), and the cylinder (3) can be rotated forty-five degrees around the rotating shaft (4) and then contact and match with the second arc-shaped strong magnet (9).

5. The blood sampling device with self-filtration function according to claim 1, characterized in that: The puncture part specifically comprises: an upper diaphragm (22) and a lower diaphragm (24); a shaft rod (23) is fixedly connected between the upper diaphragm (22) and the lower diaphragm (24); the shaft rod (23) is stuck inside the U-shaped groove (18) and matches with it; the bottom end surface of the upper diaphragm (22) abuts against the upper opening of the U-shaped groove (18); the lower diaphragm (24) abuts against the lower opening of the U-shaped groove (18); and a puncture needle (25) is fixedly connected to the bottom end of the lower diaphragm (24); the puncture needle (25) is connected to the filter tube (19).

6. The blood sampling device with self-filtration function according to claim 1, characterized in that: A filter cavity (26) is provided inside the filter tube (19), and a filter cartridge (27) is fixedly connected to the bottom end surface of the filter cavity (26), a convex head (28) is fixedly connected to the top end of the filter cartridge (27), and a guide column (30) is fixedly connected inside the filter cartridge (27), a first gap groove (29) is formed between the outer wall of the filter cartridge (27) and the inner wall of the filter cavity (26), and a second gap groove (31) is formed between the inner wall of the filter cartridge (27) and the outer side surface of the guide column (30), a plurality of evenly distributed first cavities (32) connected to the second gap grooves (31) are provided at the bottom end of the outer side surface of the guide column (30), and a second cavity (33) connected to the plurality of first cavities (32) is provided at the bottom end of the guide column (30), and the second cavity (33) is connected to the puncture portion at the bottom end, 7. The blood sampling device with self-filtration function according to claim 1, characterized in that: The length of the discharge window (5) is greater than the length of the vacuum blood collection tube (14), and the diameter of the vacuum blood collection tube (14) is smaller than the diameter of the through hole (15).

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