Blood sampling device for blood flow change detection

Abstract

The utility model discloses a blood sampling device for blood flow change detection relates to sampling device technical field, including support seat, vertical board, extraction mechanism and conveying mechanism, the upper portion of support seat is connected with the vertical board for supporting through bolt, the one side of vertical board is provided with the extraction mechanism for sampling, and the support seat of near vertical board one side is provided with the conveying mechanism for limiting, the conveying mechanism includes the round seat on the inner wall of support seat through bearing connection, the lower portion of support seat is connected with servo motor a for providing power through motor base, the output of servo motor a penetrates the inner wall of support seat and is connected with spur gear through shaft coupling. The utility model discloses through servo motor a will blood collection tube move to the below of blood taking needle one by one, and accurate alignment, the utility model discloses through servo motor b will the hollow disc a and hollow disc b stagger, and hold the blood collection tube, and adapt to different specifications blood collection tube.

Description

Technical Field

[0001] This utility model relates to the field of sampling device technology, specifically a blood sampling device for blood rheology detection. Background Technology

[0002] Blood tests are tests that analyze the components of a person's blood. They can detect parameters such as liver function, blood sugar, and blood lipids for medical personnel to use in diagnosis and timely detection of diseases. Blood tests require blood samples to be taken and then sent to testing equipment such as a hemorheometer for analysis. However, existing blood sampling devices for hemorheological analysis have certain limitations, such as: The patent with authorization announcement number CN209132279U describes a blood sampling device and a blood rheometer for blood analysis equipment. The described solution requires manual movement of the sampling device or blood collection tube placement tray to position the blood collection needle above the blood collection tube and to make the sampling needle and blood collection tube coaxial. However, different blood collection tube placement trays have different specifications, and it is difficult to align the sampling needle and blood collection tube manually.

[0003] Based on this, a blood sampling device for blood rheology detection is provided, which can eliminate the drawbacks of existing devices. Utility Model Content

[0004] The purpose of this invention is to provide a blood sampling device for hemorheology detection to solve the problems in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: A blood sampling device for blood rheology detection includes a support base, a vertical plate, an extraction mechanism, and a conveying mechanism. The vertical plate for support is bolted to the top of the support base. An extraction mechanism for sampling is provided on one side of the vertical plate. A conveying mechanism for limiting movement is provided on the support base near the vertical plate. The conveying mechanism includes a circular seat connected to the inner wall of the support base via bearings. A servo motor a for providing power is connected to the lower part of the support base via a motor mount. The output end of the servo motor a passes through the inner wall of the support base and is connected to a spur gear via a coupling. An internal gear ring is meshed with the outer side of the spur gear. The spur gear and the internal gear ring are used for transmission. The internal gear ring is fixedly connected to the inner wall of the circular seat.

[0006] Based on the above technical solutions, this utility model also provides the following optional technical solutions: In one alternative: a blood collection tube for storing blood is placed inside the circular seat, a rubber cap for sealing is provided above the blood collection tube, and a conductive slip ring for power transmission is bolted to the bottom of the circular seat, the conductive slip ring being bolted to the upper surface of the support base.

[0007] In one alternative embodiment: a perforated disc a for limiting the blood collection tube is rotatably connected to the inner wall of the circular base; a bevel gear cylinder is connected below the perforated disc a; a bevel gear a is rotatably connected through the bevel gear cylinder; the bevel gear cylinder and the bevel gear a are used for transmission; a perforated disc b for limiting the blood collection tube is connected above the bevel gear a; and the perforated disc b is rotatably connected to the inner wall of the circular base.

[0008] In one alternative: the bevel gear cylinder and one side of the bevel gear a are meshed with a bevel gear b for transmission, and one side of the bevel gear b is connected to a servo motor b for providing power via a coupling, and the servo motor b is connected to the inner wall of the circular seat via a motor mount.

[0009] In one alternative: the extraction mechanism includes an electric slide rail bolted to one side of the upright plate, the electric slide rail being used to drive the support arm to rise and fall, the support arm being bolted to the slide seat of the electric slide rail, and a baffle abutting one side of the support arm, the support arm and the baffle being used to limit the positioning sleeve.

[0010] In one alternative: a positioning sleeve for limiting the blood collection needle is engaged on the inner wall of the support arm and the baffle, and a blood collection needle for sampling is inserted and fixed inside the positioning sleeve.

[0011] In one alternative: one side of the baffle is bolted to an electric actuator a for moving the baffle and a telescopic rod for guiding the baffle, the electric actuator a and the telescopic rod being bolted to the front and rear of the support arm, respectively.

[0012] In one alternative: the upper surface of the support base near the upright plate is also bolted to an electric actuator b, which is used to drive the pressure plate to rise and fall. The output end of the pressure plate is bolted to a pressure plate for limiting the blood collection tube. The pressure plate is located on the outside of the blood collection needle.

[0013] Compared with the prior art, the beneficial effects of this utility model are as follows: 1. This utility model involves inserting blood collection tubes into a circular base and activating a servo motor a to move the blood collection tubes one by one under the blood collection needle for precise alignment. 2. This utility model inserts the blood collection tube into the round seat, starts the servo motor b to offset the hollowed-out disc a and the hollowed-out disc b, and clamps the blood collection tube, adapting to blood collection tubes of different specifications. 3. This utility model extends the electric push rod a to remove and replace the positioning sleeve and blood collection needle, and then shortens the electric push rod a to clamp the positioning sleeve and blood collection needle, so as to quickly replace the blood collection needle and prevent cross-infection that would affect blood testing. Attached Figure Description

[0014] Figure 1 This is a three-dimensional structural diagram of the circular base of this utility model.

[0015] Figure 2 This is a three-dimensional structural diagram of the positioning sleeve of this utility model.

[0016] Figure 3 This is a schematic diagram of the three-dimensional cross-sectional structure of the support base of this utility model.

[0017] Figure 4 This is a schematic diagram of the three-dimensional cross-sectional structure of the circular base of this utility model.

[0018] Figure 5 This is a three-dimensional structural diagram of the hollowed-out disc a of this utility model.

[0019] Figure 6 This is a three-dimensional structural diagram of the bevel gear cylinder of this utility model.

[0020] Figure reference numerals: 1. Support base; 2. Vertical plate; 3. Extraction mechanism; 301. Electric slide rail; 302. Support arm; 303. Positioning sleeve; 304. Blood collection needle; 305. Baffle; 306. Electric push rod a; 307. Telescopic rod; 308. Electric push rod b; 309. Pressure plate; 4. Conveying mechanism; 401. Round seat; 402. Servo motor a; 403. Spur gear; 404. Internal gear ring; 405. Conductive slip ring; 406. Hollowed-out disc a; 407. Bevel gear cylinder; 408. Bevel gear a; 409. Hollowed-out disc b; 410. Bevel gear b; 411. Servo motor b; 5. Blood collection tube; 6. Rubber cap. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0022] In one embodiment, such as Figure 1 and Figure 2 As shown, a blood sampling device for blood rheology detection includes a support base 1, a vertical plate 2, an extraction mechanism 3, and a conveying mechanism 4. The vertical plate 2 for support is bolted to the top of the support base 1. An extraction mechanism 3 for sampling is provided on one side of the vertical plate 2. A conveying mechanism 4 for limiting is provided on the support base 1 near the vertical plate 2. The extraction mechanism 3 includes an electric slide rail 301 bolted to one side of the upright plate 2. The electric slide rail 301 is used to drive the support arm 302 to rise and fall. The support arm 302 is bolted to the slide seat of the electric slide rail 301. A baffle 305 abuts against one side of the support arm 302. The support arm 302 and the baffle 305 are used to limit the positioning sleeve 303. The positioning sleeve 303 for limiting the blood collection needle 304 is engaged on the inner wall of the support arm 302 and the baffle 305. The blood collection needle 304 for sampling is inserted and fixed inside the positioning sleeve 303.

[0023] In this embodiment, the support base 1 has holes, and the support base 1 is installed on blood analysis equipment such as a blood rheometer using bolts. The power is then turned on, and the entire device is controlled by the PLC controller below the support base 1. The blood collection needle 304 is connected to the liquid collection device on the blood rheometer via an infusion tube. By starting the electric slide rail 301, the support arm 302 is moved downward, piercing the rubber cap 6 and penetrating it into the blood collection tube 5. The liquid collection device draws the blood from the blood collection tube 5, which is then used by the blood rheometer to analyze the sampled blood.

[0024] In one embodiment, such as Figure 1 and Figure 2 As shown, one side of the baffle 305 is bolted to an electric actuator a306 for moving the baffle 305 and a telescopic rod 307 for guiding the baffle 305. The electric actuator a306 and the telescopic rod 307 are bolted to the front and rear of the support arm 302, respectively.

[0025] The telescopic rod 307 guides the baffle 305. When the electric push rod a306 extends, it pushes the baffle 305 away from the side of the support arm 302. The positioning sleeve 303 is fixed to the blood collection needle 304. The positioning sleeve 303 and the blood collection needle 304 can be removed and replaced with new positioning sleeve 303 and blood collection needle 304. Then, the electric push rod a306 is shortened to drive the baffle 305 to reset and clamp the positioning sleeve 303 and the blood collection needle 304.

[0026] In one embodiment, such as Figure 1 and Figure 2 As shown, an electric actuator b308 is bolted to the upper surface of the support base 1 near the upright plate 2. The electric actuator b308 is used to drive the pressure plate 309 to rise and fall. The output end of the pressure plate 309 is bolted to a pressure plate 309 for limiting the blood collection tube 5. The pressure plate 309 is located on the outside of the blood collection needle 304.

[0027] A rubber pad can be attached to the bottom of the pressure plate 309 to prevent damage to the blood collection tube 5 and the rubber cap 6. The pressure plate 309 has a hole for the blood collection needle 304 to pass through. By shortening the electric push rod b308, the pressure plate 309 is driven to squeeze the rubber cap 6, preventing the blood collection needle 304 from pulling up the blood collection tube 5 and the rubber cap 6 when it is pulled out of the rubber cap 6.

[0028] In one embodiment, such as Figure 1 , Figure 3 and Figure 4 As shown, the conveying mechanism 4 includes a circular seat 401 connected to the inner wall of the support base 1 via bearings. A blood collection tube 5 for storing blood is placed inside the circular seat 401. A rubber cap 6 for sealing is provided above the blood collection tube 5. A servo motor a402 for providing power is connected to the lower part of the support base 1 via a motor mount. The output end of the servo motor a402 passes through the inner wall of the support base 1 and is connected to a spur gear 403 via a coupling. An internal gear ring 404 is meshed with the outer side of the spur gear 403. The spur gear 403 and the internal gear ring 404 are used for transmission. The internal gear ring 404 is fixedly connected to the inner wall of the circular seat 401. A conductive slip ring 405 for transmitting electricity is bolted to the lower part of the circular seat 401. The conductive slip ring 405 is bolted to the upper surface of the support base 1.

[0029] The servo motor a402 is started by the motor controller. The servo motor a402 drives the spur gear 403 to rotate. The spur gear 403 drives the internal gear ring 404 and the circular seat 401 to rotate together. By controlling the rotation angle of the servo motor a402, the blood collection tubes 5 in the circular seat 401 are moved one by one to the bottom of the blood collection needle 304 for precise positioning. The conductive slip ring 405 supplies power to the servo motor b411 in the circular seat 401 to prevent the power supply line of the servo motor b411 from getting tangled when the circular seat 401 rotates.

[0030] In one embodiment, such as Figures 4-6 As shown, a perforated disc a406 for limiting the blood collection tube 5 is rotatably connected to the inner wall of the circular base 401. A bevel gear cylinder 407 is connected below the perforated disc a406. A bevel gear a408 is rotatably connected through the bevel gear cylinder 407. The bevel gear cylinder 407 and the bevel gear a408 are used for transmission. A perforated disc b409 for limiting the blood collection tube 5 is connected above the bevel gear a408. The perforated disc b409 is rotatably connected to the inner wall of the circular base 401.

[0031] When the blood collection tube 5 is inserted into the round seat 401, the blood collection tube 5 passes through the perforated disc a406 and the perforated disc b409 at the same time. By rotating the perforated disc a406 and the perforated disc b409 in opposite directions at the same time, the perforated disc a406 and the perforated disc b409 are staggered, thereby clamping the blood collection tubes 5 of different specifications. Rubber rings can be attached to the inner walls of the perforated disc a406 and the perforated disc b409 to prevent the blood collection tubes 5 from being crushed.

[0032] In one embodiment, such as Figures 4-6 As shown, a bevel gear b410 for transmission is meshed with one side of the bevel gear cylinder 407 and bevel gear a408. A servo motor b411 for providing power is connected to one side of the bevel gear b410 via a coupling. The servo motor b411 is connected to the inner wall of the round seat 401 via a motor mount.

[0033] The servo motor b411 is started by the motor controller, which drives the bevel gear b410 to rotate. The bevel gear b410 simultaneously drives the bevel gear cylinder 407 and the bevel gear a408 to rotate in opposite directions, thereby causing the hollow disk a406 and the hollow disk b409 to be misaligned. The load change fed back by the servo motor b411 can be used to determine whether the hollow disk a406 and the hollow disk b409 are clamping the blood collection tube 5.

[0034] The above embodiment discloses a blood sampling device for blood rheology detection. A support base 1 is bolted onto a blood rheometer. An infusion tube connects the sampling device on the blood rheometer to an electric actuator a306. Blood collection tubes 5 are inserted one by one into the circular base 401. A servo motor b411 is activated to clamp the blood collection tubes 5. Then, a servo motor a402 is activated to rotate the circular base 401, moving the blood collection tubes 5 one by one under the pressure plate 309. The operation stops, and then the electric actuator b308 is shortened to press the pressure plate 309 against the blood collection tubes 5 and the rubber cap 6. Finally, the electric slide rail 301 is activated to move the blood collection tubes... The blood collection needle 304 pierces the rubber cap 6 and penetrates into the blood collection tube 5. The blood in the blood collection tube 5 is then drawn away by the liquid sampling device on the blood rheometer for analysis by the blood rheometer. Then, the electric slide rail 301 drives the blood collection needle 304 to reset and pull the blood collection needle 304 out of the rubber cap 6. The electric push rod b308 lifts the pressure plate 309, and the servo motor a402 moves the next set of blood collection tubes 5 below the pressure plate 309. At this time, the electric push rod a306 is extended to remove and replace the positioning sleeve 303, blood collection needle 304 and infusion tube to prevent cross-infection, and to sample the blood in the next set of blood collection tubes 5.

[0035] The above description is merely a specific embodiment of this application, but the scope of protection of this application is not limited thereto. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in this application should be included within the scope of protection of this application. Therefore, the scope of protection of this application should be determined by the scope of the claims.

Claims

1. A blood sampling device for hemorheology detection, comprising a support base (1), a vertical plate (2), an extraction mechanism (3), and a delivery mechanism (4), characterized in that, The support base (1) is connected to a vertical plate (2) for support by bolts. A sampling extraction mechanism (3) for sampling is provided on one side of the vertical plate (2). A conveying mechanism (4) for limiting is provided on the support base (1) near the vertical plate (2). The conveying mechanism (4) includes a round seat (401) connected to the inner wall of the support seat (1) by a bearing. A servo motor a (402) for providing power is connected to the lower part of the support seat (1) by a motor seat. The output end of the servo motor a (402) passes through the inner wall of the support seat (1) and is connected to a spur gear (403) by a coupling. An internal gear ring (404) is meshed with the outer side of the spur gear (403). The spur gear (403) and the internal gear ring (404) are used for transmission. The internal gear ring (404) is fixedly connected to the inner wall of the round seat (401).

2. The blood sampling device for hemorheology detection according to claim 1, characterized in that, The circular seat (401) contains a blood collection tube (5) for storing blood. A rubber cap (6) for sealing is provided above the blood collection tube (5). A conductive slip ring (405) for transmitting electricity is bolted to the bottom of the circular seat (401). The conductive slip ring (405) is bolted to the upper surface of the support seat (1).

3. The blood sampling device for hemorheology detection according to claim 1, characterized in that, A perforated disc a (406) for limiting the blood collection tube (5) is rotatably connected to the inner wall of the round seat (401). A bevel gear cylinder (407) is connected below the perforated disc a (406). A bevel gear a (408) is rotatably connected through the bevel gear cylinder (407). The bevel gear cylinder (407) and the bevel gear a (408) are used for transmission. A perforated disc b (409) for limiting the blood collection tube (5) is connected above the bevel gear a (408). The perforated disc b (409) is rotatably connected to the inner wall of the round seat (401).

4. A blood sampling device for hemorheology detection according to claim 3, characterized in that, The bevel gear cylinder (407) and one side of the bevel gear a (408) are meshed with a bevel gear b (410) for transmission. One side of the bevel gear b (410) is connected to a servo motor b (411) for providing power via a coupling. The servo motor b (411) is connected to the inner wall of the round seat (401) via a motor mount.

5. A blood sampling device for hemorheology detection according to claim 1, characterized in that, The extraction mechanism (3) includes an electric slide rail (301) bolted to one side of the upright plate (2). The electric slide rail (301) is used to drive the support arm (302) to rise and fall. The support arm (302) is bolted to the slide seat of the electric slide rail (301). A baffle (305) abuts against one side of the support arm (302). The support arm (302) and the baffle (305) are used to limit the positioning sleeve (303).

6. A blood sampling device for hemorheology detection according to claim 5, characterized in that, The inner walls of the support arm (302) and the baffle (305) are fitted with positioning sleeves (303) for limiting the blood collection needle (304), and the blood collection needle (304) for sampling is inserted and fixed inside the positioning sleeve (303).

7. A blood sampling device for hemorheology detection according to claim 5, characterized in that, One side of the baffle (305) is bolted to an electric actuator a (306) for moving the baffle (305) and a telescopic rod (307) for guiding the baffle (305). The electric actuator a (306) and the telescopic rod (307) are bolted to the front and rear of the support arm (302), respectively.

8. A blood sampling device for hemorheology detection according to claim 6, characterized in that, The upper surface of the support base (1) near the upright plate (2) is also connected to an electric push rod b (308) by bolts. The electric push rod b (308) is used to drive the pressure plate (309) to rise and fall. The output end of the pressure plate (309) is connected to a pressure plate (309) for limiting the blood collection tube (5) by bolts. The pressure plate (309) is located on the outside of the blood collection needle (304).

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