Volume fixing device for blood concentration detection

Abstract

The constant volume device comprises a base, first sliding grooves are symmetrically formed in the two sides of the inner wall of the base, first sliding blocks are arranged in the first sliding grooves in a sliding mode, the lower ends of the first sliding blocks are fixedly connected with connecting rods, and a first containing groove is formed in the bottom of the base; a connecting hole is formed in the bottom of the first storage groove, a first rack is fixedly connected to the lower end of the connecting rod, a gear is rotatably mounted in the first storage groove, an auxiliary supporting strip is slidably mounted in the first storage groove, a second rack is fixedly mounted at the upper end of the auxiliary supporting strip, and the second rack is perpendicular to the first rack; the first rack moves up and down to drive the gear to rotate, so that the second rack is driven to slide, the auxiliary supporting strip slidably extends out of the first storage groove, the supporting width is increased, and the supporting stability is improved. The container has the advantages of being high in practicability and capable of enhancing supporting so that the container can not topple over easily.

Description

Technical Field

[0001] The utility model relates to the technical field of blood drug concentration detection, in particular to a volume-fixing device used for blood drug concentration detection. Background Art

[0002] Blood drug concentration testing is the analysis and determination of drug concentration in the blood to evaluate efficacy or determine dosing regimens, so as to individualize dosing regimens, improve drug treatment levels, and achieve clinically safe, effective, and rational drug use. Blood sampling for blood drug concentration usually measures steady-state trough concentrations. After the blood drug concentration reaches steady state, blood is drawn before any morning dosing time to examine the degree of compliance with the target concentration. When testing blood drug concentration, in order to accurately calculate the concentration of blood drugs, the sample solution needs to be fixed to volume before the test so that the volume of the sample solution is fixed to a specific scale value to facilitate subsequent calculations of blood drug concentrations.

[0003] However, the existing method of volume determination for blood drug concentration testing is mostly to manually add drops and determine the volume with a handheld rubber-tipped dropper. This method is affected by human operation, has a high chance of error, and is prone to large volume determination errors. In addition, it is easy to scrape down the volume determination container, causing trouble to the operation process.

[0004] Therefore, it is necessary to design a volume-fixing device for blood drug concentration detection that is highly practical and has enhanced support so that the container is not easily tipped over. Utility Model Content

[0005] The purpose of the utility model is to provide a volume determination device for blood drug concentration detection to solve the problems raised in the above background technology.

[0006] In order to solve the above technical problems, the utility model provides the following technical solutions: a constant volume device for detecting blood drug concentration, comprising a base, a cavity is provided at the upper end of the base, a constant volume cup is placed in the cavity, first slide grooves are symmetrically provided on both sides of the inner wall of the base, a first sliding block is slidably provided inside the first slide groove, a connecting rod is fixedly connected to the lower end of the first sliding block, a first receiving groove is provided at the bottom of the base, a connecting hole is provided at the bottom of the first receiving groove, the first receiving groove is connected to the first slide groove through the connecting hole, a first rack is fixedly connected to the lower end of the connecting rod, a gear is rotatably installed inside the first receiving groove, the gear is meshed with the first rack, an auxiliary support bar is slidably installed inside the first receiving groove, a second rack is fixedly installed on the upper end of the auxiliary support bar, the second rack is meshed with the gear, the second rack is vertically arranged with the first rack, a support frame is fixedly installed on the upper surface of the base, and a cylinder is clamped on the support frame.

[0007] According to the above technical solution, bearings are fixedly installed on the inner walls of the first storage grooves. A rotating shaft is arranged between the bearings. The gear is rotationally connected to the first storage groove through the rotating shaft. A second sliding groove is formed in the inner wall of the first storage groove. A second sliding block is slidably connected inside the second sliding groove. The second sliding block is fixedly connected to an auxiliary support bar. A ball is arranged at the lower end of the auxiliary support bar.

[0008] According to the above technical solution, a piston is slidably connected inside the cylinder body. A push rod is fixedly connected to the upper end of the piston. A constant volume control component is arranged on the cylinder body.

[0009] According to the above technical solution, the constant volume control component includes a limit ring connected to the push rod. An adjusting rod is fixedly connected to one side of the limit ring. A third rack is fixedly connected to one side of the adjusting rod. A positioning gear is rotationally connected inside the adjusting groove. The positioning gear is meshed and connected with the third rack. A positioning groove is formed inside the cylinder body. A positioning spring is fixedly connected inside the positioning groove. One end of the positioning spring is fixedly connected to a positioning rack. The right side of the positioning rack extends to the outside of the cylinder body and is connected to a moving block. The positioning rack is meshed and connected with the positioning gear.

[0010] According to the above technical solution, legs are movably installed outside the base.

[0011] Compared with the prior art, the beneficial effects achieved by the present utility model are as follows: In the present utility model, a first rack is fixedly connected to the connecting rod. A gear is rotatably installed inside the first storage groove. The gear is meshed with the first rack. A second rack is fixedly installed at the upper end of the auxiliary support bar. The second rack is meshed with the gear. The constant volume cup is placed inside the cavity to move the first rack up and down to drive the gear to rotate, thereby driving the second rack to slide. The auxiliary support bar slides out of the first storage groove, extending the support width and improving the stability of the support. Description of the Drawings

[0012] The drawings are used to provide further understanding of the present utility model and constitute a part of the specification. They are used together with the embodiments of the present utility model to explain the present utility model and do not constitute a limitation to the present utility model. In the drawings:

[0013] Figure 1 is the overall front sectional structure schematic diagram of the present utility model;

[0014] Figure 2 is the structural schematic diagram of the rotating shaft of the present utility model;

[0015] Figure 3 is the sectional structure schematic diagram of the cylinder body of the present utility model;

[0016] Figure 4 is Figure 3Enlarged schematic diagram at position A in

[0017] In the figure: 1. Base; 2. Cavity; 3. Constant-volume cup; 4. First chute; 5. First slider; 6. Connecting rod; 7. First storage groove; 8. First rack; 9. Gear; 10. Auxiliary support bar; 11. Second rack; 12. Support frame; 13. Cylinder; 14. Rotating shaft; 15. Second slider; 17. Ball; 18. Piston; 19. Push rod; 20. Limit ring; 21. Adjusting rod; 22. Third rack; 23. Positioning gear; 24. Positioning spring; 25. Positioning rack; 26. Leg. Specific implementation mode

[0018] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0019] Please refer to Figures 1-4 , the present invention provides a technical solution: a constant-volume device for blood drug concentration detection, including a base 1. A cavity 2 is opened at the upper end of the base 1. A constant-volume cup 3 is placed in the cavity 2. First clamping blocks are arranged on both sides of the constant-volume cup 3. Second clamping blocks fixedly connected to the opposite sides of the first sliders 5 are pushed downward by the first clamping blocks on both sides of the constant-volume cup 3 when the constant-volume cup 3 is placed in the cavity 2, so that the connecting rod 6 drives the first rack 8 to move downward. The first rack 8 meshes with the gear 9 to rotate, thereby driving the second rack 11 to slide. The auxiliary support bar 10 slides out of the first storage groove 7, extending the support width and improving the stability of the support. A support frame 12 is fixedly installed on the upper surface of the base 1, and a cylinder 13 is clamped on the support frame 12.

[0020] Bearings are fixedly installed on the inner walls of the first storage groove 7. A rotating shaft 14 is arranged between the bearings. The gear 9 is rotationally connected to the first storage groove 7 through the rotating shaft 14. A second sliding groove is formed in the inner wall of the first storage groove 7. A second slider 15 is slidably connected inside the second sliding groove. The second slider 15 is fixedly connected to the auxiliary support bar 10. A ball 17 is arranged at the lower end of the auxiliary support bar 10. The rotation of the gear 9 drives the second rack 11 to move, that is, the auxiliary support bar 10 moves out of the first storage groove 7 for support.

[0021] A piston 18 is slidably connected inside the cylinder body 13. A push rod 19 is fixedly connected to the upper end of the piston 18. A constant volume control component is arranged on the cylinder body 13 to control the liquid output volume through the constant volume control component.

[0022] The constant volume control component includes a limit ring 20 connected to the push rod 19. A regulating rod 21 is fixedly connected to one side of the limit ring 20. A third rack 22 is fixedly connected to one side of the regulating rod 21. A regulating groove adapted to the regulating rod 21 is formed in the cylinder body 13. A positioning gear 23 is rotationally connected inside the regulating groove. The positioning gear 23 is meshed and connected to the third rack 22. A positioning groove is formed in the cylinder body 13. A positioning spring 24 is fixedly connected inside the positioning groove. One end of the positioning spring 24 is fixedly connected to a positioning rack 25, and the right side of the positioning rack 25 extends to the outside of the cylinder body 13 and is connected to a moving block. The positioning rack 25 is meshed and connected to the positioning gear 23. Applying force to the moving block makes the positioning rack 25 move, and at the same time deforms the positioning spring 24. Rotating the positioning gear 23, the positioning rack 25 and the regulating rod 21 move. The regulating rod 21 drives the limit ring 20 to move, and thus the position of the limit ring 20 can be adjusted according to the required liquid output volume.

[0023] Legs 26 are movably installed outside the base 1. The legs 26 are provided with limit rotating components. When the auxiliary support bar 10 moves out of the first storage groove 7, it pushes the legs 26 to rotate and separate for support.

[0024] Working principle: First, place the constant volume cup 3 inside the cavity 2. The first blocks on both sides of the constant volume cup 3 push down the second blocks fixedly connected to the opposite sides of the first slider 5, so that the connecting rod 6 drives the first rack 8 to move downward. The first rack 8 meshes with the gear 9 to rotate, thereby driving the second rack 11 to slide. The auxiliary support bar 10 slides out of the first storage groove 7 to extend the support width. Applying force to the moving block makes the positioning rack 25 move, and at the same time deforms the positioning spring 24. Rotating the positioning gear 23, the positioning rack 25 and the regulating rod 21 move. The regulating rod 21 drives the limit ring 20 to move, and thus the position of the limit ring 20 can be adjusted according to the required liquid output volume. Push the push rod 19, and the push rod 19 pushes the piston 18 to inject the liquid in the cylinder body 13 into the constant volume cup 3.

[0025] It should be noted that in this text, relational terms such as first and second are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, so that a process, method, article or device comprising a series of elements not only includes those elements, but also includes other elements not expressly listed, or further includes elements inherent to such process, method, article or device.

[0026] Finally, it should be noted that the above are only the preferred embodiments of the present utility model and are not used to limit the present utility model. Although the present utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements for some of the technical features. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model shall be included within the protection scope of the present utility model.

Claims

1. A volume determination device for blood drug concentration detection, comprising a base (1), characterized in that: The upper end of the base (1) is provided with a cavity (2), a constant volume cup (3) is placed in the cavity (2), first slide grooves (4) are symmetrically arranged on both sides of the inner wall of the base (1), a first slider (5) is slidably arranged inside the first slide groove (4), the lower end of the first slider (5) is fixedly connected to a connecting rod (6), the bottom of the base (1) is provided with a first receiving groove (7), the bottom of the first receiving groove (7) is provided with a connecting hole, the first receiving groove (7) is connected to the first slide groove (4) through the connecting hole, and the lower end of the connecting rod (6) is fixedly connected to a first A rack (8), a gear (9) is rotatably installed inside the first receiving groove (7), the gear (9) is meshingly connected with the first rack (8), an auxiliary support bar (10) is slidably installed inside the first receiving groove (7), a second rack (11) is fixedly installed on the upper end of the auxiliary support bar (10), the second rack (11) is meshingly connected with the gear (9), the second rack (11) and the first rack (8) are vertically arranged, and a support frame (12) is fixedly installed on the upper surface of the base (1), and a cylinder (13) is clamped on the support frame (12).

2. A volume determination device for blood drug concentration detection according to claim 1, characterized in that: The inner wall of the first receiving groove (7) is fixedly mounted with bearings, a rotating shaft (14) is arranged between the bearings, the gear (9) is rotatably connected to the first receiving groove (7) via the rotating shaft (14), the inner wall of the first receiving groove (7) is provided with a second sliding groove, the interior of the second sliding groove is slidably connected with a second slider (15), the second slider (15) is fixedly connected to the auxiliary support bar (10), and a ball (17) is arranged at the lower end of the auxiliary support bar (10).

3. A volume determination device for blood drug concentration detection according to claim 1, characterized in that: A piston (18) is slidably connected inside the cylinder (13), a push rod (19) is fixedly connected to the upper end of the piston (18), and a constant volume control component is provided on the cylinder (13).

4. A volume determination device for blood drug concentration detection according to claim 3, characterized in that: The constant volume control component comprises a limit ring (20) connected to the push rod (19), one side of the limit ring (20) is fixedly connected to an adjusting rod (21), one side of the adjusting rod (21) is fixedly connected to a third rack (22), an adjusting groove matched with the adjusting rod (21) is provided in the cylinder (13), a positioning gear (23) is rotatably connected in the adjusting groove, the positioning gear (23) is meshingly connected with the third rack (22), a positioning groove is provided in the cylinder (13), a positioning spring (24) is fixedly connected in the positioning groove, one end of the positioning spring (24) is fixedly connected to a positioning rack (25), and the right side of the positioning rack (25) extends to the outside of the cylinder (13) and is connected to a moving block, and the positioning rack (25) is meshingly connected to the positioning gear (23).

5. A volume determination device for blood drug concentration detection according to claim 1, characterized in that: The base (1) is movably provided with legs (26) on the outside.

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