Separation and extraction device for dental pulp stem cells

Abstract

The utility model relates to the technical field of dental pulp stem cell separation, and discloses a dental pulp stem cell separation and extraction device which comprises a device shell, a driving shaft is installed in the device shell, and a stepping motor fixedly connected with the device shell is fixed to the lower end of the driving shaft. A balance mechanism used for balancing the device is arranged on the outer surface of the driving shaft, a fixing mechanism used for fixing materials is arranged at the upper end of the driving shaft, and a protection mechanism used for protection is arranged on one side of the device shell. The balance mechanism comprises an adjusting piece. Through the arrangement of the balance mechanism, the lead screw can be driven to rotate through the adjusting motor arranged in the adjusting piece, the horizontal position of the movable block can be adjusted under the cooperation of the guide rod, then the position of the balancing weight is adjusted, the centrifugal force generated when the driving shaft rotates can be stabilized, and then the shaking situation during centrifugation is reduced; and the stability of the device is improved.

Description

Technical Field

[0001] This utility model relates to the field of dental pulp stem cell separation technology, specifically a separation and extraction device for dental pulp stem cells. Background Technology

[0002] Dental pulp stem cell separation and extraction devices are specialized equipment used to separate and extract dental pulp stem cells from dental pulp tissue. Dental pulp stem cells have the potential for multi-lineage differentiation and have broad application prospects in regenerative medicine, tissue engineering, and other fields. Centrifugal force is used to separate the cellular components in dental pulp tissue. The centrifuge is the core component of the separation and extraction device, and its performance directly affects the separation and extraction effect. With the continuous progress of biotechnology and medical research, dental pulp stem cell separation and extraction devices are also constantly developing.

[0003] Existing separation and extraction devices can adjust the tilt angle of the test tube fixing mechanism according to the required centrifugal force, so that the test tube is tilted during centrifugation. During centrifugation, the stem cell components closer to the tail of the test tube are subjected to greater centrifugal force. However, most separation and extraction devices cannot balance the centrifugation device when centrifuging and extracting materials. Furthermore, after adjusting the angle of the test tube, the angles of the two test tubes are different, which easily causes large shaking during centrifugation and affects the centrifugation effect. Utility Model Content

[0004] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the present invention.

[0005] Given that the separation and extraction devices described above or in the prior art cannot balance the centrifugation device when centrifuging to extract materials, and that the angles of the two test tubes are different after adjusting the angle of the test tubes, resulting in large shaking during centrifugation and affecting the centrifugation effect.

[0006] To achieve the above objectives, this utility model provides the following technical solution:

[0007] A device for separating and extracting dental pulp stem cells includes a device housing, a drive shaft installed inside the device housing, a stepper motor fixedly connected to the device housing at the lower end of the drive shaft, a balancing mechanism for balancing the device on the outer surface of the drive shaft, a fixing mechanism for fixing the material at the upper end of the drive shaft, and a protective mechanism for protection on one side of the device housing.

[0008] The balancing mechanism includes two adjusting components, each symmetrically fixed to the outer surface of the drive shaft. An adjusting motor is fixed inside each adjusting component. A lead screw is fixed to the power output shaft of the adjusting motor. A movable block is slidably connected to the outer surface of the lead screw. A guide rod passes through the interior of the movable block. A counterweight is fixed to the lower surface of the movable block.

[0009] As a further improvement of this utility model, the drive shaft is fitted with a fixed bearing that is embedded in the inner wall of the device housing.

[0010] As a further embodiment of this utility model: the fixing mechanism includes two fixing members, both of which are fixed to the upper end of the drive shaft.

[0011] As a further improvement of this utility model: each of the two fixing members has a placement tube fixed to its end, and each of the two fixing members has an installation groove inside.

[0012] As a further improvement of this utility model: the groove is internally slidably connected to a limiting rod that penetrates the inner wall of the placement tube, and a fixing bolt penetrates the inside of the limiting rod.

[0013] As a further improvement of this utility model, a sealing ring is fixed on the upper surface of the device housing.

[0014] As a further embodiment of this utility model: the protective mechanism includes a protective cover, which is hinged to one side of the device housing, and the inner wall of the protective cover is provided with a sealing groove that matches the sealing ring.

[0015] As a further embodiment of this utility model: two connecting blocks are fixed to the side wall of the protective cover, and the two connecting blocks are each connected to a connecting groove opened on the outer shell of the device. The side wall of the device shell is threaded with a fixing screw that abuts against the connecting blocks.

[0016] Compared with the prior art, the beneficial effects of this utility model are:

[0017] 1. By setting up a balancing mechanism, the adjustment motor inside the adjustment component can drive the lead screw to rotate. With the cooperation of the guide rod, the horizontal position of the movable block can be adjusted, and the position of the counterweight can be adjusted. This can stabilize the centrifugal force when the drive shaft rotates, thereby reducing the shaking that occurs during centrifugation and improving the stability of the device.

[0018] 2. This utility model, by setting a fixing mechanism, allows the limiting rod to be manually pulled horizontally, so that the end of the limiting rod passes through the inner wall of the placement tube and contacts the test tube. Then, the fixing bolt is tightened, and the end of the fixing bolt abuts against the inner wall of the mounting groove, thereby fixing the limiting rod. This can clamp and limit the test tube, effectively reducing the possibility of the test tube shaking or shifting. Attached Figure Description

[0019] Figure 1 A three-dimensional structural schematic diagram of a device for separating and extracting dental pulp stem cells;

[0020] Figure 2 A three-dimensional structural diagram of the outer shell of a device for separating and extracting dental pulp stem cells;

[0021] Figure 3 A three-dimensional structural diagram of the drive shaft in a device for separating and extracting dental pulp stem cells;

[0022] Figure 4 A schematic cross-sectional view of the adjustment component in a separation and extraction device for dental pulp stem cells;

[0023] Figure 5 A device for separating and extracting dental pulp stem cells Figure 3 Enlarged structural diagram at point A in the middle.

[0024] In the diagram: 1. Device housing; 2. Drive shaft; 3. Stepper motor; 4. Adjusting component; 41. Adjusting motor; 42. Lead screw; 43. Movable block; 44. Guide rod; 45. Counterweight; 5. Fixed bearing; 6. Fixing component; 61. Placement tube; 62. Mounting groove; 63. Limiting rod; 64. Fixing bolt; 7. Sealing ring; 8. Protective cover; 81. Sealing groove; 82. Connecting block; 83. Connecting groove; 84. Fixing screw. Detailed Implementation

[0025] To make the above-mentioned objectives, features and advantages of this utility model more readily understood, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0026] Many specific details are set forth in the following description in order to provide a full understanding of the present invention. However, the present invention may also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0027] Secondly, the term "an embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single embodiment or an embodiment selectively excluded from other embodiments.

[0028] Example 1

[0029] Please see Figure 1 - Figure 5 This is the first embodiment of the present invention. This embodiment provides a separation and extraction device for dental pulp stem cells, including a device housing 1, a drive shaft 2 installed inside the device housing 1, a stepper motor 3 fixedly connected to the device housing 1 at the lower end of the drive shaft 2, a balancing mechanism for balancing the device on the outer surface of the drive shaft 2, a fixing mechanism for fixing the material at the upper end of the drive shaft 2, and a protective mechanism for protection on one side of the device housing 1.

[0030] The balancing mechanism includes two adjusting components 4, which are symmetrically fixed on the outer surface of the drive shaft 2. An adjusting motor 41 is fixed inside each of the two adjusting components 4. A lead screw 42 is fixed to the power output shaft of the adjusting motor 41. A movable block 43 is slidably connected to the outer surface of the lead screw 42. A guide rod 44 passes through the interior of the movable block 43. A counterweight 45 is fixed to the lower surface of the movable block 43.

[0031] Specifically, the drive shaft 2 is fitted with a fixed bearing 5 that is embedded in the inner wall of the device housing 1.

[0032] Furthermore, the stability of the drive shaft 2 during rotation can be ensured by fixing the bearing 5.

[0033] Specifically, the fixing mechanism includes two fixing members 6. Both fixing members 6 are fixed to the upper end of the drive shaft 2. The ends of both fixing members 6 are fixed with placement tubes 61. Both fixing members 6 have mounting grooves 62 inside.

[0034] Furthermore, the material is placed into a test tube, and then the test tube is placed into the placement tube 61 to facilitate the fixation of the material.

[0035] Specifically, the mounting groove 62 is internally slidably connected to a limiting rod 63 that penetrates the inner wall of the placement tube 61, and a fixing bolt 64 penetrates the inside of the limiting rod 63.

[0036] Furthermore, manually pull the limiting rod 63 to move it horizontally, tighten the fixing bolt 64, and then fix the limiting rod 63, which can clamp and limit the test tube.

[0037] In use, first position the outer casing 1 of the device. Then, place the material into the test tube and insert the test tube into the placement tube 61. Using the mounting groove 62 on the fixing member 6, the limiting rod 63 can be manually pulled horizontally, causing the end of the limiting rod 63 to pass through the inner wall of the placement tube 61 and contact the test tube. Then, tighten the fixing bolt 64, ensuring the end of the fixing bolt 64 abuts against the inner wall of the mounting groove 62, thus fixing the limiting rod 63. This clamps and limits the test tube, effectively reducing shaking and displacement. (The last sentence appears to be incomplete and possibly refers to a separate process involving a stepper motor.) 3 drives the drive shaft 2 to rotate, which in turn drives the two placement tubes 61 to move, centrifuging the material in the test tubes. The fixed bearing 5 ensures the stability of the drive shaft 2 during rotation. When the centrifuge mechanism shakes during centrifugation, the adjusting motor 41 in the adjusting component 4 drives the lead screw 42 to rotate. With the cooperation of the guide rod 44, the horizontal position of the movable block 43 can be adjusted, and the position of the counterweight 45 can be adjusted. This stabilizes the centrifugal force when the drive shaft 2 rotates, thereby reducing shaking during centrifugation and improving the stability of the device.

[0038] In summary, this dental pulp stem cell separation and extraction device can conveniently place and fix the material, thereby avoiding the material shaking and falling off during centrifugation. It can also stabilize the centrifugation mechanism, ensuring that the centrifugation mechanism does not shake during operation, thus improving the centrifugation extraction effect of the material.

[0039] Example 2

[0040] Please see Figure 1 - Figure 5 This is the second embodiment of the present utility model.

[0041] Specifically, a sealing ring 7 is fixed on the upper surface of the device housing 1.

[0042] Furthermore, the sealing ring 7 facilitates sealing.

[0043] Specifically, the protective mechanism includes a protective cover 8, which is hinged to one side of the device housing 1, and the inner wall of the protective cover 8 is provided with a sealing groove 81 that matches the sealing ring 7.

[0044] Furthermore, by closing the protective cover 8, a protective function can be achieved, thereby ensuring the safety of the material during centrifugation.

[0045] Specifically, the protective cover 8 has two connecting blocks 82 fixed to its side wall. The two connecting blocks 82 are connected to connecting grooves 83 opened on the device housing 1. The side wall of the device housing 1 is threaded with fixing screws 84 that abut against the connecting blocks 82.

[0046] Furthermore, by tightening the fixing screws 84, the connecting block 82 can be fixed, thereby fixing the protective cover 8.

[0047] When in use, close the protective cover 8 so that the connecting block 82 on the protective cover 8 is inserted into the connecting groove 83. With the cooperation of the sealing groove 81 and the sealing ring 7, the inside of the device can be sealed to reduce the entry of external impurities. By tightening the fixing screw 84, the connecting block 82 can be fixed, thereby fixing the protective cover 8 and achieving the protective function.

[0048] In summary, this dental pulp stem cell separation and extraction device can conveniently place and fix materials, thereby avoiding the shaking and falling off of materials during centrifugation. It can also stabilize the centrifugation mechanism, ensuring that the centrifugation mechanism does not shake during operation, thus improving the centrifugation extraction effect. Furthermore, through the cooperation of the protective cover 8, the sealing ring 7, and the sealing groove 81, it can play a sealing role, thereby reducing the possibility of external impurities entering the device.

[0049] It is important to note that the constructions and arrangements of this application shown in several different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who consult this disclosure will readily understand that many modifications are possible (e.g., changes in the size, dimensions, structure, shape, and proportions of various elements, as well as parameter values ​​(e.g., temperature, pressure, etc.), mounting arrangements, use of materials, color, orientation, etc.) without substantially departing from the novel teachings and advantages of the subject matter described in this application). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of elements may be inverted or otherwise altered, and the nature or number or position of discrete elements may be changed or altered. Therefore, all such modifications are intended to be included within the scope of this utility model. The order or sequence of any process or method steps may be changed or rearranged according to alternative embodiments. In the claims, any "device plus function" clause is intended to cover the structure described herein that performs the function, and not only structural equivalents but also equivalent structures. Without departing from the scope of this invention, other substitutions, modifications, alterations, and omissions may be made in the design, operation, and arrangement of the exemplary embodiments. Therefore, this invention is not limited to the specific embodiments, but extends to various modifications that still fall within the scope of the appended claims.

[0050] Furthermore, in order to provide a concise description of exemplary embodiments, not all features of actual embodiments (i.e., those features that are not relevant to the best mode of carrying out the present invention as currently considered, or those features that are not relevant to implementing the present invention) may be omitted.

[0051] It should be understood that numerous specific implementation decisions can be made during the development of any actual implementation method, and in any engineering or design project. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0052] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An isolation and extraction device for dental pulp stem cells, comprising a device housing (1), characterized in that: The device housing (1) is equipped with a drive shaft (2), and the lower end of the drive shaft (2) is fixed with a stepper motor (3) that is fixedly connected to the device housing (1). The outer surface of the drive shaft (2) is provided with a balancing mechanism for balancing the device. The upper end of the drive shaft (2) is provided with a fixing mechanism for fixing the material. The device housing (1) is provided with a protective mechanism for protection on one side. The balancing mechanism includes an adjusting component (4), and there are two adjusting components (4). The two adjusting components (4) are symmetrically fixed on the outer surface of the drive shaft (2). An adjusting motor (41) is fixed inside the two adjusting components (4). A lead screw (42) is fixed to the power output shaft of the adjusting motor (41). A movable block (43) is slidably connected to the outer surface of the lead screw (42). A guide rod (44) passes through the interior of the movable block (43). A counterweight (45) is fixed to the lower surface of the movable block (43).

2. The isolation and extraction device for dental pulp stem cells according to claim 1, characterized in that: The drive shaft (2) is fitted with a fixed bearing (5) embedded in the inner wall of the device housing (1).

3. The isolation and extraction device for dental pulp stem cells according to claim 1, characterized in that: The fixing mechanism includes two fixing members (6), both of which are fixed to the upper end of the drive shaft (2).

4. The isolation and extraction device for dental pulp stem cells according to claim 3, characterized in that: The ends of both fasteners (6) are fixed with placement tubes (61), and the interiors of both fasteners (6) are provided with mounting grooves (62).

5. The device for isolating and extracting dental pulp stem cells according to claim 4, wherein: The mounting groove (62) is internally connected to a limiting rod (63) that penetrates the inner wall of the placement tube (61), and a fixing bolt (64) penetrates the inside of the limiting rod (63).

6. The isolation and extraction device for dental pulp stem cells according to claim 1, characterized in that: A sealing ring (7) is fixed on the upper surface of the outer casing (1) of the device.

7. The isolation and extraction device for dental pulp stem cells according to claim 6, characterized in that: The protective mechanism includes a protective cover (8), which is hinged to one side of the device housing (1). The inner wall of the protective cover (8) is provided with a sealing groove (81) that matches the sealing ring (7).

8. The isolation and extraction device for dental pulp stem cells according to claim 7, characterized in that: The protective cover (8) has two connecting blocks (82) fixed on its side wall. The two connecting blocks (82) are connected to the outside of the connecting slots (83) opened on the device housing (1). The side wall of the device housing (1) is threaded with fixing screws (84) that abut against the connecting blocks (82).

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