Centrifugal blood separation test tube rack and centrifugal blood separation device

Abstract

The utility model provides a centrifugal blood separation test tube rack and a centrifugal blood separation device, and relates to the technical field of blood centrifugation. The centrifugal blood separation test tube rack comprises a main rack body, a movable cover and a plurality of test tube sleeves, the main frame body is arranged in the centrifugal cavity and is in transmission connection with the centrifugal driving unit so as to rotate under the driving action of the centrifugal driving unit; a movable cavity is formed in the main frame body; the movable cover is detachably connected with the main frame body, and the movable cover is provided with a plurality of rotating grooves; each test tube sleeve is rotatably connected to one rotating groove, part of the test tube sleeve is accommodated in the movable cavity, and each test tube sleeve is used for sleeving one separation test tube; and the test tube sleeve is tangent to the movable cover relative to the rotating axis direction of the rotating groove. The centrifugal blood separation test tube rack is simple in structure, flexible and convenient to operate, good in universality, wide in application range and beneficial to reduction of centrifugal treatment cost and improvement of centrifugal treatment efficiency.

Description

Centrifugal blood separation tube rack and centrifugal blood separation device Technical Field

[0001] This utility model belongs to the field of blood centrifugation technology, and in particular relates to a centrifugal blood separation test tube rack and a centrifugal blood separation device. Background Technology

[0002] Platelet-rich fibrin (PRF) is an autologous platelet concentrate that can promote wound healing. PRF contains platelet-derived growth factor (PDGF) and vascular endothelial growth factor (VEGF), which are highly correlated with endometrial repair. The PRF preparation process includes centrifugation, which separates red blood cells, PRF, and supernatant by centrifuging whole blood.

[0003] Currently, there are many types of blood separation devices on the market, but the number, position, and size of the tanks for placing blood centrifuge tubes in the blood separation device are fixed. However, when preparing PRF, it is necessary to customize blood centrifuge equipment to match the specifications (including outer diameter and length) of the blood centrifuge tubes used to prepare PRF, which leads to many inconveniences in its use and high preparation costs. Summary of the Invention

[0004] In view of this, in order to solve the technical problems mentioned in the background art, this utility model proposes a centrifugal blood separation test tube rack and a centrifugal blood separation device, which has a simple structure, flexible and convenient operation, good compatibility, and wide applicability, which helps to reduce the cost of centrifugation and improve the efficiency of centrifugation.

[0005] To achieve the above objectives, the present invention adopts the following technical solution: a centrifugal blood separation test tube rack and a centrifugal blood separation device, comprising a main frame, a movable cover, and multiple test tube sleeves; the main frame is placed inside a centrifuge chamber and is connected to a centrifuge drive unit for transmission, and a movable chamber is provided inside the main frame; the movable cover is detachably connected to the main frame and is provided with multiple rotating grooves; each test tube sleeve is detachably connected to a corresponding rotating groove and can rotate relative to the rotating groove, each test tube sleeve is used to hold a separation test tube, and the rotation axis of the test tube sleeve is tangent to a circle formed with the center of the movable cover as the center.

[0006] Furthermore, each of the two opposite side walls of the rotating groove is vertically provided with a strip groove, and the outer periphery of the test tube sleeve is provided with two rotating connecting parts symmetrically arranged around its axis, and the two rotating connecting parts are respectively rotatably engaged with the two strip grooves.

[0007] Furthermore, the upper end of the groove is open to allow the rotating connection to slide in.

[0008] Furthermore, the main frame is provided with a positioning post around its axis, the upper end of the positioning post is provided with a first positioning part, and the central area of ​​the movable cover is provided with a second positioning part that is inserted and cooperates with the positioning part.

[0009] Furthermore, the first positioning part includes a first positioning hole and a second positioning hole disposed around the first positioning hole around the axis of the main frame; wherein the first positioning hole is larger than the second positioning hole.

[0010] Furthermore, the first positioning hole is a rectangular hole, and the second positioning hole is a circular hole.

[0011] Furthermore, the outer periphery of the movable cover is provided with multiple connectors around its axis, which are used to connect with the main frame.

[0012] Furthermore, the active cavity is provided with multiple partitions, which divide the active cavity into multiple sub-cavities, each of which is used to accommodate a test tube sleeve.

[0013] Furthermore, the rotating groove extends radially along the movable cover, and the extension length of the rotating groove is greater than the outer diameter of the test tube sleeve.

[0014] A centrifugal blood separation device includes a main body, a cover plate, a centrifugal drive unit, and the aforementioned centrifugal blood separation test tube rack; the cover plate is movably connected to the main body to open or close the centrifugation chamber of the main body; the centrifugal drive unit is connected to the main body and is drively connected to the centrifugal blood separation test tube rack located in the centrifugation chamber.

[0015] Compared with the prior art, the beneficial effects of the centrifugal blood separation tube rack and centrifugal blood separation device described in this utility model are:

[0016] 1. The test tube sleeve of this utility model is tangent to the movable cover relative to the rotation axis of the rotating groove. This allows the main frame to rotate under the drive of the centrifugal drive unit during centrifugation, causing the separated test tube and the test tube sleeve to tilt synchronously at a certain angle. Thus, during centrifugation, there is no need to tilt the separated test tube and the test tube sleeve. It can automatically tilt during centrifugation, and the tilt angle can be adjusted according to the size of the corresponding centrifuge chamber, making it widely applicable.

[0017] 2. This utility model adopts a method in which the test tube sleeve is detachably connected to the main frame, and the test tube sleeve is detachably connected to the movable cover. This configuration allows for adjustment of the number of test tubes that can be centrifuged simultaneously by changing the movable cover during use. That is, by changing different movable covers, the number of rotating slots on the movable cover can be selected according to the needs, so that the movable cover can be adapted to different numbers of test tube sleeves. Multiple movable covers can be manufactured to make them standard parts or modular structures, thereby allowing the selection of movable covers with the corresponding number of rotating slots according to the needs, improving its flexibility and compatibility, and improving centrifugation efficiency while reducing costs.

[0018] 3. The centrifugal blood separation test tube rack described in this utility model is applied to a centrifugal blood separation device. It has a simple structure, is flexible and convenient to operate, has good compatibility, and is widely applicable. It helps to reduce the cost of centrifugation and improve the efficiency of centrifugation. Attached Figure Description

[0019] The accompanying drawings, which form part of this utility model, are used to provide a further understanding of the utility model. The illustrative embodiments of the utility model and their descriptions are used to explain the utility model and do not constitute an undue limitation of the utility model. In the drawings:

[0020] Figure 1 is a front view of the centrifugal blood separation test tube rack of this utility model;

[0021] Figure 2 is a top view of the centrifugal blood separation test tube rack of this utility model;

[0022] Figure 3 is an exploded view of the centrifugal blood separation test tube rack of this utility model;

[0023] Figure 4 is a schematic diagram of the structure of the test tube sleeve and the separation test tube of this utility model;

[0024] Figure 5 is a cross-sectional view of the centrifugal blood separation test tube of this utility model;

[0025] Figure 6 is a cross-sectional view of the centrifugal blood separation test tube of this utility model when the test tube sleeve is tilted.

[0026] Figure 7 is an exploded view of the main frame and movable cover of this utility model;

[0027] Figure 8 is a cross-sectional view of the movable cover of this utility model;

[0028] Figure 9 is a structural schematic diagram of the main frame of this utility model when it is equipped with a partition.

[0029] Icons: 100-Centrifugal blood separation test tube rack; 110-Main frame; 120-Modible cover; 130-Test tube sleeve; 140-Separation test tube; 111-Modible cavity; 112-Positioning column; 113-First positioning part; 114-First positioning hole; 115-Second positioning hole; 116-Partition; 117-Sub-cavity; 121-Rotating groove; 122-Strip groove; 123-Second positioning part; 131-Rotating connection part. Detailed Implementation

[0030] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. It should be noted that, unless otherwise specified, the embodiments and features in the embodiments of the present utility model can be combined with each other, and the described embodiments are only some embodiments of the present utility model, not all embodiments.

[0031] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] In the description of this utility model, it should be noted that if terms such as "upper," "lower," "inner," or "outer" are used to indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the utility model product is usually placed during use, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this utility model.

[0034] Furthermore, the terms "first" and "second" are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0035] It should be noted that, where there is no conflict, the features in the embodiments of this utility model can be combined with each other.

[0036] Referring to Figures 1-9, this embodiment is described as follows: a centrifugal blood separation test tube rack includes a main frame 110, a movable cover 120, and multiple test tube sleeves 130.

[0037] The main frame 110 is placed inside the centrifuge chamber and is connected to the centrifuge drive unit for transmission so as to rotate under the driving action of the centrifuge drive unit. The main frame 110 is provided with a movable cavity 111.

[0038] The movable cover 120 is detachably connected to the main frame 110, and the movable cover 120 is provided with multiple rotating slots 121;

[0039] Each test tube sleeve 130 is detachably connected to a rotating groove 121 and can rotate relative to the rotating groove 121. A portion of the test tube sleeve 130 is housed in the movable cavity 111. Each test tube sleeve 130 is used to house a separate test tube 140.

[0040] The rotation axis of the test tube sleeve 130 relative to the rotating groove 121 is tangent to the movable cover 120.

[0041] The two opposite side walls of the rotating groove 121 are vertically provided with strip grooves 122. The outer periphery of the test tube sleeve 130 is provided with two rotating connecting parts 131 symmetrically arranged around its axis. The two rotating connecting parts 131 are respectively rotatably engaged with the two strip grooves 122.

[0042] The upper end of the groove 122 is open to allow the rotating connection 131 to slide in.

[0043] The main frame 110 is provided with a positioning post 112 around its axis. The upper end face of the positioning post 112 is provided with a first positioning part 113. The central area of ​​the movable cover 120 is provided with a second positioning part 123 that is inserted and cooperates with the positioning part.

[0044] The first positioning part 113 includes a first positioning hole 114 and a second positioning hole 115 disposed around the first positioning hole 114 around the axis of the main frame 110; wherein the first positioning hole 114 is larger than the second positioning hole 115.

[0045] The first positioning hole 114 is a rectangular hole, and the second positioning hole 115 is a circular hole.

[0046] The rotating groove 121 extends in the radial direction of the movable cover 120, and the extension length of the rotating groove 121 is greater than the outer diameter of the test tube sleeve 130.

[0047] Multiple connectors are provided around the outer periphery of the movable cover 120 along its axis, and the connectors are used to connect to the main frame 110.

[0048] The movable cavity 111 is provided with multiple partitions 116, which divide the movable cavity 111 into multiple sub-cavities 117, each of which is used to accommodate a test tube sleeve 130.

[0049] This utility model also provides a centrifugal blood separation device;

[0050] The centrifugal blood separation device includes a main body, a cover plate, a centrifugal drive unit, and the aforementioned centrifugal blood separation test tube rack;

[0051] The cover plate is movably connected to the main body to open or close the centrifuge chamber of the main body;

[0052] The centrifugation drive unit is connected to the main body and is also connected to the centrifugal blood separation tube rack located inside the centrifugation chamber.

[0053] Please refer to Figures 1-8. The working principle of this centrifugal blood separation test tube rack 100 is as follows:

[0054] First, the centrifugal blood separation test tube rack 100 includes a main frame 110, a movable cover 120, and multiple test tube sleeves 130. The main frame 110 is placed inside the centrifuge chamber and is connected to the centrifuge drive unit for rotation under the drive of the centrifuge drive unit. A movable cavity 111 is provided inside the main frame 110. The movable cover 120 is detachably connected to the main frame 110 and is provided with multiple rotating grooves 121. Each test tube sleeve 130 is detachably connected to a corresponding rotating groove 121 and can rotate relative to the rotating groove 121. A portion of the test tube sleeve 130 is housed in the movable cavity 111, and each test tube sleeve 130 is used to house a separation test tube 140. The rotation axis of the test tube sleeve 130 relative to the rotating groove 121 is tangent to the movable cover 120. That is, during use, it is placed inside the centrifuge chamber and connected to the centrifuge drive unit for transmission, so that it rotates under the drive of the centrifuge drive unit, thereby performing centrifugation.

[0055] During centrifugation, the separation test tube 140 is inserted into the test tube sleeve 130, which is rotatably connected to a rotating groove 121. The rotation axis of the test tube sleeve 130 relative to the rotating groove 121 is tangent to the movable cover 120. This allows the main frame 110 to rotate under the drive of the centrifugation drive unit. During centrifugation, the separation test tube 140 and the test tube sleeve 130 are simultaneously tilted at a certain angle. This eliminates the need for tilting the separation test tube 140 and the test tube sleeve 130 during centrifugation. They can automatically tilt during centrifugation, and the tilt angle can be adjusted according to the size of the centrifuge chamber, the structural dimensions of the test tube sleeve 130, or by adding an angle limiting structure. The angle limiting principle will not be elaborated here.

[0056] When the rotation axis of the test tube sleeve 130 relative to the rotating groove 121 is tangent to the movable cover 120, the purpose is to allow the separated test tube 140 and the test tube sleeve 130 to be in an inclined state during centrifugation. Therefore, during the placement process, the rotation axis of the test tube sleeve 130 is tangent to the circle formed with the center of the movable cover 120 as the center, so that after the main frame 110 rotates, it can be inclined in the radial plane relative to the movable cover 120.

[0057] Furthermore, unlike the existing centrifuge equipment where the centrifuge tubes 140 to be centrifuged are directly inserted into the equipment, this embodiment uses a method where the tubes are detachably connected to the main frame 110, and the tube sleeves 130 are detachably connected to the movable cover 120. This arrangement allows for adjustments to the number of tubes that can be centrifuged simultaneously by changing the movable cover 120. Specifically, by replacing different movable covers 120, the number of rotating slots 121 on the movable cover 120 can be selected according to requirements, enabling the movable cover 120 to accommodate different numbers of tube sleeves 130. Therefore, multiple movable covers 120 can be manufactured to form a standard part or modular structure, allowing for the selection of the appropriate number of rotating slots 121 on the movable cover 120 as needed. This improves the flexibility and compatibility of its use, increases centrifugation efficiency, and reduces costs.

[0058] Furthermore, this embodiment takes the preparation of PRF as an example. It involves filling a separation tube 140 with blood and centrifuging and separating it. To reduce the risk of contamination during PRF preparation, the structure of the separation tube 140 is gradually being adjusted, leading to continuous changes in its shape and size. However, existing centrifuges use a method where the separation tube 140 is directly inserted into the equipment. Therefore, changes to the shape and size of the separation tube 140 necessitate modifications to the centrifugation equipment, increasing the cost of centrifugal PRF preparation. Based on this, in this embodiment, the tube sleeve 130 is detachably connected to the movable cap 120. Moreover, the tube sleeve 130 is used to house the separation tube 140. Therefore, by adjusting the structural shape of the test tube sleeve 130, the centrifuge equipment can be adapted to the improved separation test tube 140, thereby reducing the modification cost of the centrifuge equipment. Similarly, when the equipment is applied to other types of centrifugal separation work, the test tube sleeve 130 can be adjusted to meet different centrifugation requirements, thereby expanding its applicability. Based on this, similar to the above arrangement of multiple movable caps 120, multiple sizes of test tube sleeves 130 can be manufactured to make them standard parts or modular structures, allowing for the selection of the corresponding size of test tube sleeve 130 according to requirements. This improves the flexibility and compatibility of its use, and increases centrifugation efficiency while reducing costs.

[0059] In summary, the centrifugal blood separation tube rack 100 is applied to centrifugal blood separation devices. It has a simple structure, is flexible and convenient to operate, has good compatibility, and a wide range of applications. It is beneficial to reduce the cost of centrifugation and improve the efficiency of centrifugation.

[0060] Further referring to Figures 1-8, in this embodiment, to improve the rotational stability of the test tube sleeve 130, vertically oriented strip grooves 122 are provided on both opposite side walls of the rotating groove 121. Two symmetrically arranged rotating connecting parts 131 are provided on the outer periphery of the test tube sleeve 130 around its axis, and the two rotating connecting parts 131 are respectively rotatably engaged with the two strip grooves 122. In addition, to facilitate the insertion and removal of the test tube sleeve 130 from the rotating groove 121, the upper end of the strip groove 122 is open to allow the rotating connecting parts 131 to slide in. It should be noted that the strip grooves 122 and the rotating connecting parts 131 are all circular in outline to improve the smoothness of rotation.

[0061] When connecting the movable cover 120 to the main frame 110, to improve its installation stability, as shown in Figures 1-8, the main frame 110 is provided with a positioning post 112 around its axis. The upper end surface of the positioning post 112 is provided with a first positioning part 113, and the central area of ​​the movable cover 120 is provided with a second positioning part 123 that is inserted and engaged with the positioning part. The first positioning part 113 includes a first positioning hole 114 and a second positioning hole 115 arranged around the axis of the main frame 110 around the first positioning hole 114; wherein, the first positioning hole 114 is larger than the second positioning hole 115.

[0062] Therefore, the above-mentioned structural design can improve the stability of the connection, thereby ensuring that the main frame 110 can drive the movable cover 120 to rotate synchronously; and when setting the first positioning hole 114 and the second positioning hole 115, in order to facilitate the quick assembly of the movable cover 120 onto the main frame 110, the first positioning hole 114 can be a rectangular hole and the second positioning hole 115 can be a circular hole, and an arc-shaped transition surface can be set at the outer periphery corner of the first positioning block to facilitate quick positioning and assembly. Furthermore, when setting the first positioning part 113 and the second positioning part 123, the first positioning part 113 includes a first positioning hole 114 and a second positioning hole 115 arranged around the first positioning hole 114 around the axis of the main frame 110. Therefore, the second positioning part 123 includes a first positioning post 112 and a second positioning post 112. The first positioning post 112 is located in the center, and the second positioning post 112 is arranged around the first positioning post 112. Moreover, the shape of the first positioning post 112 is adapted to the first positioning block, and the shape of the second positioning post 112 is adapted to the second positioning hole 115. In order to improve the efficiency of positioning connection, the length of the first positioning post 112 can be greater than the length of the second positioning post 112, so that the first positioning post 112 first engages with the first positioning hole 114, and then, based on the engagement of the first positioning post 112 with the first positioning hole 114, the movable cover 120 is moved to engage the second positioning post 112 with the second positioning hole 115, thereby improving efficiency.

[0063] Referring to Figures 1-8, in order to improve the efficiency of the positioning and engagement between the first positioning post 112 and the first positioning hole 114, an arc-shaped transition surface is provided on the outer periphery of the first positioning post 112, and a guide arc surface can also be provided at its end so that it can be quickly installed into the first positioning hole 114.

[0064] Based on the above structure, referring to Figures 1-9, to allow the test tube sleeve 130 to rotate within the rotating groove 121, the rotating groove 121 extends radially along the movable cover 120, and the extension length of the rotating groove 121 is greater than the outer diameter of the test tube sleeve 130. To improve the installation stability of the movable cover 120, multiple connectors are provided around its axis on the outer periphery of the movable cover 120. These connectors are used to connect with the main frame 110. Furthermore, to prevent heat generation due to friction with air during centrifugation, or to avoid increased operating noise, multiple partitions 116 are provided within the movable cavity 111. These partitions divide the movable cavity 111 into multiple sub-cavities 117, each of which accommodates one test tube sleeve 130. This allows each test tube sleeve 130 to be placed within an independent chamber, thus preventing frictional heat generation and reducing operating noise.

[0065] Based on the above, please refer to Figures 1-9. This embodiment also provides a centrifugal blood separation device. The centrifugal blood separation device includes a main body, a cover plate, a centrifugal drive unit, and the centrifugal blood separation test tube rack 100 described above. The cover plate is movably connected to the main body to open or close the centrifugal chamber of the main body. The centrifugal drive unit is connected to the main body and is drively connected to the centrifugal blood separation test tube rack 100 located in the centrifugal chamber.

[0066] It should be noted that this centrifugal blood separation device, by adopting the aforementioned centrifugal blood separation test tube rack 100, possesses all the advantages of the centrifugal blood separation test tube rack 100, which will not be elaborated here.

[0067] The embodiments of the present invention disclosed above are merely illustrative of the present invention. The embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific implementations described. Many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention.

Claims

1. A centrifugal blood separation test tube rack characterized by: The system includes a main frame (110), a movable cover (120), and multiple test tube sleeves (130). The main frame (110) is placed inside the centrifuge chamber and is connected to the centrifuge drive unit. The main frame (110) has a movable cavity (111). The movable cover (120) is detachably connected to the main frame (110) and has multiple rotating grooves (121). Each test tube sleeve (130) is detachably connected to a rotating groove (121) and can rotate relative to the rotating groove (121). Each test tube sleeve (130) is used to house a separate test tube (140). The rotation axis of the test tube sleeve (130) is tangent to a circle formed with the center of the movable cover (120) as the center.

2. The centrifugal blood separation test tube rack of claim 1, wherein: The rotating groove (121) has vertically formed strip grooves (122) on both sides of its opposite sidewalls. The outer periphery of the test tube sleeve (130) is provided with two rotating connecting parts (131) symmetrically arranged around its axis. The two rotating connecting parts (131) are respectively rotated and engaged with the two strip grooves (122).

3. The centrifugal blood separation test tube rack of claim 2, wherein: The upper end of the groove (122) is open to allow the rotating connection (131) to slide in.

4. The centrifugal blood separation test tube rack of claim 1, wherein: The main frame (110) is provided with a positioning post (112) around its axis. The upper end face of the positioning post (112) is provided with a first positioning part (113). The central area of ​​the movable cover (120) is provided with a second positioning part (123) that is inserted and cooperates with the positioning part.

5. The centrifugal blood separation test tube rack of claim 4, wherein: The first positioning part (113) includes a first positioning hole (114) and a second positioning hole (115) disposed around the first positioning hole (114) around the axis of the main frame (110); wherein the first positioning hole (114) is larger than the second positioning hole (115).

6. The centrifugal blood separation test tube rack of claim 5, wherein: The first positioning hole (114) is a rectangular hole, and the second positioning hole (115) is a circular hole.

7. The centrifugal blood separation test tube rack of claim 1, wherein: The outer periphery of the movable cover (120) is provided with a plurality of connectors around its axis, which are used to connect to the main frame (110).

8. The centrifugal blood separation test tube rack of claim 1, wherein: The active cavity (111) is provided with multiple partitions (116), which divide the active cavity (111) into multiple sub-cavities (117), each of which is used to accommodate a test tube sleeve (130).

9. The centrifugal blood separation test tube rack of claim 1, wherein: The rotating groove (121) extends in the radial direction of the movable cover (120), and the extension length of the rotating groove (121) is greater than the outer diameter of the test tube sleeve (130).

10. A centrifugal blood separation device, characterized by: The device includes a main body, a cover plate, a centrifugal drive unit, and a centrifugal blood separation tube rack as described in any one of claims 1-9; the cover plate is movably connected to the main body to open or close the centrifugation chamber of the main body; the centrifugal drive unit is connected to the main body and is drively connected to the centrifugal blood separation tube rack located in the centrifugation chamber.

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