Blood mixing device for anticoagulation

Abstract

The application belongs to the technical field of blood mixing devices, and particularly relates to an anticoagulant blood mixing device. The device comprises a first support seat, a second support seat and a plurality of rotating rollers rotatably connected between the first support seat and the second support seat. The first support seat is internally provided with a driving assembly for driving the plurality of rotating rollers to rotate. The first support seat is further provided with a main control device for controlling the operation of the driving assembly. Adjacent two rotating rollers are provided with an effective placement space for placing a sample tube. The plurality of rotating rollers are linearly telescopic along the shafts thereof. The length of the rotating rollers between the first support seat and the second support seat is adjusted to adjust the size of the effective placement space. The rotating rollers of the blood mixing device are provided in a telescopic structure, which can satisfy the size adjustment of the effective placement space for placing the sample tube, and can also satisfy the adjustment of the overall volume of the blood mixing device by shortening the length of the rotating rollers when the blood mixing device is idle.

Description

Technical Field

[0001] This invention relates to the field of blood mixing device technology, and in particular to a blood mixing device for anticoagulation. Background Technology

[0002] The existing rolling blood mixer has a structure in which a rotating roller is placed between two support bases. One of the support bases contains a drive component to rotate the roller. In use, a tube containing the sample is placed between the two rollers. As the roller rotates, it drives the tube to rotate, thereby mixing the sample inside the tube. The drawback of the existing rolling blood mixer is that the length of the roller is fixed (the effective placement space is between the two rollers), which limits the number of sample tubes that can be placed. When there are many sample tubes that need to be mixed, they cannot be placed all at once. If a blood mixer with a longer roller is used, the overall size of the rolling blood mixer will be larger when not in use, occupying a large storage space. Therefore, the problem with the existing rolling blood mixer is that it cannot flexibly adjust the effective placement space according to the needs of the site. Summary of the Invention

[0003] This invention provides a blood mixing device for anticoagulation, which can flexibly adjust the length of the rotating roller according to the number of sample tubes to be mixed. This allows for the adjustment of the roller length to accommodate a large number of sample tubes at once when there are many sample tubes, and the shortening of the roller length to reduce the space occupied when there are few sample tubes or when the device is idle.

[0004] The technical problem solved by this invention is achieved by the following technical solution: This invention provides a blood mixing device for anticoagulation, comprising: a first support base, a second support base, and a plurality of rotating rollers rotatably connected between the first and second support bases. The first support base has a drive assembly for driving the plurality of rotating rollers to rotate, and a main control device for controlling the operation of the drive assembly is also provided on the first support base. An effective placement space for placing sample tubes is provided between two adjacent rotating rollers. The invention is characterized in that the plurality of rotating rollers are all structures capable of linear extension and retraction along their own axis, and the size of the effective placement space can be adjusted by adjusting the length of the rotating rollers between the first and second support bases.

[0005] Preferably, the rotating roller includes a sleeve section and a slide rod section that are slidably telescopically connected. The sleeve section is a tube with an opening at one end and a hollow area inside. One end of the slide rod section extends into the hollow area of ​​the sleeve section, and the other end extends to the outside of the sleeve section.

[0006] Preferably, the rotating roller includes two sleeve sections and a sliding rod section located between the two sleeve sections and slidably connected to the two sleeve sections respectively. Both sleeve sections are tubular with an opening at one end and a hollow area inside. The two ends of the sliding rod section extend into the hollow areas of the two sleeve sections respectively.

[0007] Preferably, an anti-rotation groove is provided on the side wall of the hollow area of ​​the sleeve section, and an anti-rotation protrusion is provided at the end of the sliding rod section that cooperates with the sleeve section. The cooperation between the anti-rotation protrusion and the anti-rotation groove enables the sleeve section and the sliding rod section to rotate synchronously.

[0008] Preferably, the opening of the sleeve section is integrally formed with a limiting ring protrusion, the diameter of the slide rod section is smaller than the inner diameter of the limiting ring protrusion, and the diameter of the anti-rotation protrusion is larger than the inner diameter of the limiting ring protrusion.

[0009] Preferably, both the sleeve section and the slide rod section are made of stainless steel and their outer surfaces are covered with wear-resistant rubber.

[0010] Preferably, it also includes a locking component for locking the gap between the first support and the second support.

[0011] Preferably, the locking assembly includes a first pull rod fixed to the side wall of the first support and a second pull rod fixed to the side wall of the second support. The end of the first pull rod away from the first support is fixedly connected to a threaded rod, and the second pull rod has a through groove. The threaded rod passes through the through groove and is threaded with a nut at its upper part.

[0012] Preferably, the drive assembly includes a drive motor, a drive pulley at the output end of the drive motor, a driven pulley fixedly connected to a shaft at one end of the rotating roller, and a belt sleeved on the drive pulley and the driven pulley.

[0013] The beneficial effects of the present invention are: the rotating roller of the blood mixing device is designed to be telescopic, thereby satisfying the need to adjust the size of the effective placement space for the sample tube, and also allowing the overall volume of the blood mixing device to be adjusted by shortening the length of the rotating roller when idle.

[0014] By setting a locking device, the distance between the first support and the second support can be locked, thereby locking the length of the rotating roller and ensuring the stable operation of the blood mixing device. Attached Figure Description

[0015] 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 only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0016] Figure 1 This is a schematic diagram of the prior art provided by the present invention; Figure 2 This is a schematic diagram of the structure of the first embodiment of the present invention; Figure 3 This is a schematic diagram of the structure of the second embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the driving component provided by the present invention; Figure 5 Provided by the present invention Figure 4 Enlarged structural diagram at point A; Figure 6 This is a schematic diagram of the roller structure according to the first embodiment of the present invention; Figure 7 This is a schematic diagram of the disassembled structure of the roller according to the first embodiment of the present invention; Figure 8 For the present invention Figure 7 Enlarged structural diagram at point C; Figure 9 This is a schematic diagram of the roller structure according to the second embodiment of the present invention; Figure 10 This is a schematic diagram of the disassembled structure of the roller according to the second embodiment of the present invention; Figure 11 For the present invention Figure 10 Enlarged structural diagram at point B; Figure 12 A schematic diagram showing the structure of the invention with added locking components; Figure 13 This is a schematic diagram of the disassembled structure of the locking component of the present invention.

[0017] In the diagram, 1. First support base; 2. Main control device; 3. Second support base; 4. Rotary roller; 401. First sleeve section; 402. First slide rod section; 403. Second sleeve section; 404. Second slide rod section; 5. Installation space; 6. Motor; 7. Driving pulley; 8. Belt; 9. Driven pulley; 10. Bearing; 11. Anti-rotation protrusion; 12. Anti-rotation groove; 13. Second pull rod; 14. Through groove; 15. Threaded rod; 16. Nut; 17. Sample tube; 18. First pull rod; 19. Limiting ring protrusion. Detailed Implementation

[0018] To make the technical means, creative features, objectives and effects of this invention easier to understand, the invention will be further described below with reference to specific illustrations.

[0019] refer to Figure 1 The existing blood mixing device for anticoagulation mainly includes a first support 1, a second support 3, and multiple rotating rollers 4. The multiple rotating rollers 4 are parallel to each other and rotatably connected between the first support 1 and the second support 3. When mixing the blood inside a sample tube 17 containing blood, the sample tube 17 is placed in the gap between adjacent rotating rollers 4 (the gap width is smaller than the diameter of the sample tube 17, thus supporting the sample tube 17 by the two adjacent rotating rollers 4). When the two adjacent rotating rollers 4 rotate in the same direction (clockwise or counterclockwise simultaneously), they drive the sample tube 17 to rotate, thereby mixing the blood sample inside the sample tube 17. Figure 4 and Figure 5 As shown, the rotation of the roller 4 is mainly driven by the drive assembly. An installation space 5 is located inside the first support 1 to house the drive assembly. Bearings 10 are fitted at both ends of the roller 4 to achieve rotatable connection with the first support 1 and the second support 3. The drive assembly includes a motor 6 inside the installation space 5, a drive pulley 7 at the output end of the motor 6, and a driven pulley 9 fixed to one end of the roller 4. Power is transmitted between the drive pulley 7, the driven pulley 9, and the driven pulley 9 via belts 8, thereby achieving synchronous drive of multiple rollers 4. A main control device 2 is also installed on the first support 1, connected to the motor 6, to control the operating state of the motor 6, including speed control and working time control. Personnel input adjustment parameters through the main control device 2 to control the working state of the motor 6. The above is an introduction to the working principle of existing anticoagulant blood mixing devices. The existing technical problem with blood mixing devices for anticoagulation is that the length of the rotating roller 4 is mostly fixed. The length of the rotating roller 4 limits the effective space for placing the sample tube 17 (the longer the rotating roller 4 is, the more sample tubes 17 can be placed, but the longer the rotating roller 4 is, the larger the overall space occupied by the blood mixing device for anticoagulation). Because the length of the rotating roller 4 is fixed, the blood mixing device for anticoagulation cannot be adjusted in terms of working efficiency and volume according to the actual situation, resulting in poor flexibility.

[0020] refer to Figure 2 and Figure 3This invention provides a blood mixing device for anticoagulation. Similar to the prior art, it also includes a first support 1, a second support 3, a rotating roller 4, a drive assembly, and a main control device 2. The difference lies in the rotating roller 4. The rotating roller 4 of this invention can linearly extend and retract along its own axis. When the rotating roller 4 extends, the effective placement space for the sample tube 17 increases, allowing for the placement of more sample tubes 17. When the rotating roller 4 shortens, the distance between the first support 1 and the second support 3 decreases, thereby reducing the overall space occupied by the blood mixing device for anticoagulation.

[0021] Further reference Figure 2 , Figures 6-11 The diagram shown is a structural schematic of the present invention. The difference between the rotating roller 4 and the conventional rotating roller 4 is that the conventional rotating roller 4 has a fixed length, while the rotating roller 4 provided by the present invention has an adjustable length. The adjustable length of the rotating roller 4 is mainly achieved by the sleeve section and the sliding rod section. That is, the more the sliding rod section slides into the sleeve section, the shorter the overall length of the rotating roller 4 becomes, and the more the sliding rod section slides out of the sleeve section, the longer the overall length of the rotating roller 4 becomes. This achieves the adjustment of the overall length of the rotating roller 4, thereby achieving the effective adjustment of the placement space for the sample tube 17.

[0022] For details, please refer to Figure 2 , Figures 6-8 This is a schematic diagram of the structure of the first embodiment of the present invention. Its main difference from the prior art lies in the difference in the rotating roller 4. In the first embodiment, the sleeve section and sliding rod section constituting the rotating roller 4 mainly include a first sleeve section 401 and a first sliding rod section 402. The first sleeve section 401 is a tube with an opening at one end and a hollow region (cavity) inside. The first sliding rod section 402 is a rod extending into the hollow region at one end. The more the first sliding rod section 402 slides into the first sleeve section 401, the shorter the length of the rotating roller 4; the more the first sliding rod section 402 slides out of the first sleeve section 401, the longer the length of the rotating roller 4. In use, when mixing... When the number of sample tubes 17 is small, the first sliding rod section 402 is slid into the interior of the first sleeve section 401 (with only a small amount of the end exposed). At this time, the sample tubes 17 can be placed between two adjacent first sleeve sections 401, which can meet the mixing requirements of a small number of sample tubes 17. When the number of sample tubes 17 is large, the first sleeve section 401 alone cannot meet the requirements of placing a large number of sample tubes 17. The first sliding rod section 402 can be pulled out of the first sleeve section 401. At this time, not only can sample tubes 17 be placed between adjacent first sleeve sections 401, but also between adjacent first sliding rod sections 402, which improves the mixing efficiency.

[0023] For specific references Figure 3 , Figures 9-11 This is a schematic diagram of the second embodiment of the present invention. The main difference between this embodiment and the prior art lies in the rotating roller 4. In the second embodiment, the sleeve section and sliding rod section constituting the rotating roller 4 include two second sleeve sections 403 and one second sliding rod section 404. Both second sleeve sections 403 are tubular, with an opening at one end and a hollow internal region. The second sliding rod section 404 is located between the two second sleeve sections 403, and its ends are slidably connected to the interiors of the two second sleeve sections 403 respectively. When the two second sleeve sections 403 move away from each other, the more of the second sliding rod section 404 is exposed, and the longer the rotating roller 4 becomes. When the two second sleeve sections move closer to each other... When moving in the near direction, the longer the length of the second slide bar segment 404 is covered, the shorter the length of the rotating roller 4 becomes. In use, when only a small number of sample tubes 17 need to be mixed, the second slide bar segment 404 is completely covered inside the two second sleeve segments 403. At this time, the sample tubes 17 can be placed between adjacent second sleeve segments 403 to meet the mixing efficiency. When the number of sample tubes 17 is large, the mixing efficiency cannot be met by relying solely on the second sleeve segments 403. By pulling the two second sleeve segments 403 in a direction away from each other, the second slide bar segment 404 can be exposed. At this time, more sample tubes 17 can be placed on the entire rotating roller 4, thereby improving the mixing efficiency.

[0024] Based on the above two embodiments, those skilled in the art can easily conceive of other ways to achieve telescopic adjustment between the sleeve section and the sliding rod section as embodiments of the present invention. Specifically, for example, two large sleeve sections and a small sleeve section with different diameters and a sliding rod section can be used. The small sleeve section can slide in and out inside the large sleeve section, and the sliding rod section can slide in and out inside the small sleeve section (similar to the telescopic fishing rod). This also enables the telescopic adjustment of the rotating roller 4.

[0025] Furthermore, the rotating roller 4 in the above two embodiments can adjust the number of sample tubes 17 placed by extending and shortening, thereby adjusting the space occupied and mixing efficiency. In order to ensure the consistency of the mixing effect, it is also necessary for each part of the retractable rotating roller 4 to rotate synchronously (since the existing drive assembly only uses one end of the rotating roller 4 as the drive end, there may be a problem of asynchronous rotation between the sleeve section and the slide section in the above two embodiments, resulting in inconsistent mixing effect of the sample tubes 17 placed on the sleeve section and the slide section). The synchronous rotation can be achieved by means of anti-rotation groove 12 and anti-rotation protrusion 11.

[0026] Specifically, an anti-rotation groove 12 is opened on the side wall of the hollow area of ​​the sleeve section, and an anti-rotation protrusion 11 is provided at the end of the slide rod section. The anti-rotation protrusion 11 and the anti-rotation groove 12 cooperate with each other, so that the sleeve section and the slide rod section can rotate synchronously, ensuring that the sample tubes 17 placed on the sleeve section and the slide rod section can achieve the same mixing effect.

[0027] To prevent the sleeve section and the slide rod section from separating from each other, a limiting ring protrusion 19 is integrally formed at the opening position of the sleeve section. The diameter of the slide rod section can pass through the inner diameter of the limiting ring protrusion 19 (i.e., it is smaller than the inner diameter of the limiting ring protrusion 19). The diameter of the anti-rotation protrusion 11 at the end of the slide rod section is larger than the inner diameter of the limiting ring protrusion 19, thereby preventing the slide rod section from separating from the inside of the sleeve section.

[0028] To ensure that the roller 4 has sufficient load-bearing capacity and sufficient friction with the sample tube 17, both the sleeve section and the slide section are made of stainless steel, and wear-resistant rubber is provided on the outer surface of the stainless steel to increase friction.

[0029] When using, such as Figure 12 and Figure 13 As shown, to prevent accidental external force from changing the length of the roller 4, a locking assembly is provided between the first support 1 and the second support 3. This locking assembly is used to lock the length of the roller 4 after the length adjustment is completed. Specifically, the locking assembly includes a first pull rod 18, a second pull rod 13, a threaded rod 15, and a nut 16. The second pull rod 13 has a through-slot 14, through which the threaded rod 15 passes. In use, by loosening the nut 16 on the threaded rod 15, the distance between the first support 1 and the second support 3 is adjusted (and simultaneously, the length of the roller 4 is also adjusted). The position of the threaded rod 15 in the slot 14 changes accordingly. Then, the nut 16 is tightened on the threaded rod 15 again, so that the nut 16 and the first pull rod 18 cooperate to clamp the second pull rod 13, thereby stabilizing the distance between the first support seat 1 and the second support seat 3, and indirectly stabilizing the length of the roller 4. Specifically, the first pull rod 18 can be fixed on the first support seat 1 and the second pull rod 13 can be fixed on the second support seat 3. Of course, it can also be set in reverse, that is, the first pull rod 18 is fixed on the second support seat 3 and the second pull rod 13 is fixed on the first support seat 1.

[0030] The foregoing has shown and described the basic principles, main features, and advantages of the present invention. Those skilled in the art should understand that the present invention is not limited to the above-described embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of the invention. Various changes and modifications can be made to the invention without departing from its spirit and scope, and all such changes and modifications fall within the scope of the present invention as claimed. The scope of protection of this invention is defined by the appended claims and their equivalents.

Claims

1. A blood mixing device for anticoagulation, comprising a first support base (1), a second support base (3), and a plurality of rotating rollers (4) rotatably connected between the first support base (1) and the second support base (3), wherein the first support base (1) is provided with a drive assembly for driving the plurality of rotating rollers (4) to rotate, and the first support base (1) is also provided with a main control device (2) for controlling the operation of the drive assembly, and the space between two adjacent rotating rollers (4) is an effective placement space for placing sample tubes (17), characterized in that, Each of the rollers (4) is a structure that can extend and retract linearly along its own axis. By adjusting the length of the rollers (4) between the first support seat (1) and the second support seat (3), the size of the effective placement space can be adjusted.

2. The blood mixing device for anticoagulation according to claim 1, characterized in that, The rotating roller (4) includes a sleeve section and a sliding rod section that are slidably telescopically connected. The sleeve section is a tube with an opening at one end and a hollow area inside. One end of the sliding rod section extends into the hollow area of ​​the sleeve section, and the other end extends to the outside of the sleeve section.

3. The blood mixing device for anticoagulation according to claim 1, characterized in that, The rotating roller (4) includes two sleeve sections and a sliding rod section located between the two sleeve sections and slidably connected to the two sleeve sections respectively. Both sleeve sections are tubular with an opening at one end and a hollow area inside. The two ends of the sliding rod section extend to the hollow areas of the two sleeve sections respectively.

4. A blood mixing device for anticoagulation according to claim 2 or 3, characterized in that, An anti-rotation groove (12) is provided on the side wall of the hollow area of ​​the sleeve section, and an anti-rotation protrusion (11) is provided at the end of the sliding rod section that cooperates with the sleeve section. The sleeve section and the sliding rod section can rotate synchronously through the cooperation of the anti-rotation protrusion (11) and the anti-rotation groove (12).

5. A blood mixing device for anticoagulation according to claim 4, characterized in that, The opening of the sleeve section is integrally formed with a limiting ring protrusion (19), the diameter of the slide rod section is smaller than the inner diameter of the limiting ring protrusion (19), and the diameter of the anti-rotation protrusion (11) is larger than the inner diameter of the limiting ring protrusion (19).

6. A blood mixing device for anticoagulation according to claim 4, characterized in that, Both the sleeve section and the slide rod section are made of stainless steel and their outer surfaces are covered with wear-resistant rubber.

7. A blood mixing device for anticoagulation according to claim 1, characterized in that, It also includes a locking component for locking the gap between the first support (1) and the second support (3).

8. A blood mixing device for anticoagulation according to claim 1, characterized in that, The locking assembly includes a first pull rod (18) fixed on the side wall of the first support (1) and a second pull rod (13) fixed on the side wall of the second support (3). The first pull rod (18) is fixedly connected to a threaded rod (15) at one end away from the first support (1). The second pull rod (13) has a through groove (14). The threaded rod (15) passes through the through groove (14) and has a nut (16) threaded on its upper part.

9. A blood mixing device for anticoagulation according to claim 1, characterized in that, The drive assembly includes a drive motor (6), a drive pulley (7) at the output end of the drive motor (6), a driven pulley (9) fixedly connected to a shaft at one end of the roller (4), and a belt (8) sleeved on the drive pulley (7) and the driven pulley (9).

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