CN115192826B - Stem cell introduction system - Google Patents

Abstract

The invention discloses a stem cell introduction system, which includes a placement plate. The upper surface of the placement plate is provided with a fully penetrating limiting groove. A rotating disk with a fixed axis is provided in the limiting groove. The rotating disk is provided with two symmetrical vortex grooves. Both vortex grooves are equipped with sliding rods with limited sliding. The sliding rods extend inward through the vortex grooves and are fixedly connected to a positioning mechanism. The positioning mechanism includes a casing that runs through the center of the placement plate. The bottom end of the casing is fixedly connected with The slide bar has a push block fixedly connected to the bottom end of the two slide bars. The upper surface of the push block is provided with a through slot for the slide bar to limit sliding. The opposite sides of the push block are fixedly connected with positioning posts. One side of the positioning post is provided with a Telescopic columns. The present invention has the advantage of preventing the needle from deflecting and allowing the syringe to be accurately positioned during the injection process. It solves the problem that the needle is prone to deflect during the existing stem cell injection process, resulting in deviation of the injection position and difficulty in transporting stem cells to the lesion. question.

Description

Stem cell introduction system

Technical field

The present invention relates to the technical field of stem cell introduction, specifically a stem cell introduction system.

Background technique

Stem cells are a type of multipotent cells with the ability of self-renewal and self-replication. Stem cells can be divided into embryonic stem cells and adult stem cells. According to different differentiation potential classifications, they can be divided into totipotent stem cells, pluripotent stem cells, and unipotent stem cells. They have the characteristics of multi-directional differentiation potential, unlimited division, and proliferation.

Among them, mesenchymal stem cells have attracted increasing attention due to their multi-directional differentiation potential, hematopoietic support and promotion of stem cell implantation, immune regulation and self-replication. Mesenchymal stem cells can differentiate into fat, bone, cartilage, muscle, tendon, ligament, nerve, liver, myocardium, endothelium and other tissue cells under specific induction conditions in vivo or in vitro, and can be used for tissues caused by aging and disease. Organ damage repair has a wide range of functions. In the process of stem cell treatment, cultured stem cells need to be injected into the injured or diseased site through a syringe. During the injection process, an experienced physician needs to accurately inject the stem cells into the designated area through a syringe. However, the existing syringe is difficult to accurately position during the injection process, and the needle is prone to deflection, resulting in a deviation in the injection position, making it difficult to deliver stem cells to the lesion. To address the above problems, the present invention provides a stem cell introduction system.

Contents of the invention

The purpose of the present invention is to provide a stem cell introduction system, which has the advantage of effectively preventing the needle from deflecting, allowing the syringe to be accurately positioned during the injection process, and solving the problem that the needle is prone to deflecting during the existing stem cell injection process, resulting in deviation of the injection position. The problem of difficulty in delivering stem cells to the damaged site.

In order to achieve the above object, the present invention provides the following technical solution: a stem cell introduction system, including a placement plate. The upper surface of the placement plate is provided with a fully penetrating limiting groove, and a rotating disk with a fixed axis is provided in the limiting groove. The rotating disk is provided with two symmetrical vortex grooves, and sliding rods with limited sliding are provided in the two vortex grooves. The slide rods extend inward through the vortex grooves and are fixedly connected with a positioning mechanism;

The positioning mechanism includes a casing that runs through the center of the placement plate. The bottom end of the casing is fixedly connected to a sliding bar. The bottom ends of the two sliding bars are fixedly connected to push blocks. The upper surface of the push block is provided with a supply hole. There is a through slot for the slide bar to limit sliding. Positioning posts are fixedly connected to opposite sides of the push block. A telescopic column is provided on one side of the positioning post. The bottom of the limit slot is fixed at the center of the two slide bars. A positioning ring is installed, the positioning ring is provided with a through hole for the needle to pass through, and the two sides of the positioning ring are provided with openings corresponding to the telescopic column.

Preferably, the inner contour of the limiting groove is symmetrically provided with a through hole on one side close to the pushing block, and a sliding column for axial movement is provided in the through hole. The sliding column extends inward through the through hole and is fixed to the pushing block. Connection, the opposite side of the positioning column is provided with an opening, and the side of the telescopic column located in the opening is provided with a spring.

Preferably, there is a slot for placing the syringe in the center of the upper surface of the sleeve, and a mounting hole is symmetrically provided in the inner contour of the sleeve. A fixing bump is fixedly installed in the mounting hole, and the fixing bump is located in the mounting hole. There is a spring two on one side, and the protruding part of the fixed bump is in the shape of a semicircle.

Preferably, the upper surface of the placement plate is symmetrically provided with fixed rods, and there are two fixed rods. The two fixed rods are fixed with a limit plate on the opposite side, and a chute is provided on the surface of the limit plate, so The sliding rod penetrates the chute and the vortex groove and extends to the bottom of the rotating disk. The chute and the vortex groove are both slidingly connected with the sliding rod limiter.

Preferably, a push mechanism is provided on the upper surface of the fixed rod at one end away from the fixed rod. The push mechanism includes a push rod, and a limit block is fixedly installed on the sliding rod. The limit block is in an inverted L shape, and the limit block is in an inverted L shape. A limited opening is provided on the bit block. One end of the push rod extends outward through the limited opening and is fixedly connected to the push rod. The bottom of the push rod is located on the limit plate at one end away from the fixed rod. The upper surface of the limit plate is provided There are fixed pieces located on both sides of the bottom of the fixed rod, and the fixed pieces and the push rod are connected through pins.

Preferably, a driving gear is fixedly connected to the outside of the rotating plate, and an adsorption mechanism is connected to the driving gear. The adsorption mechanism includes a driven gear, and a symmetrically arranged opening is provided on the upper surface of the placement plate close to the driving gear. And through the opening, it is connected to the fixed axis of the driven gear. The driving gear and the driven gear mesh with each other. A threaded hole is opened in the center of the driven gear and a screw is threaded through the threaded hole. The bottom end of the screw is provided with There is an adsorption chamber, the screw is movably connected with a piston, a negative pressure adsorption port is provided on the lower surface of the placement plate, the negative pressure adsorption port is connected with the adsorption chamber, and a single unit is provided at the connection between the adsorption chamber and the negative pressure adsorption port. To the valve, a rubber disk is fixedly connected to the bottom of the negative pressure adsorption port.

Preferably, the adsorption mechanism includes a micro suction pump, and a connector is fixedly connected to one side of the outer contour of the placement plate. The connector is fixedly connected to the suction end of the micro suction pump, and a connection is provided on the surface of the connector. port, and a one-way valve is provided in the connecting port.

Preferably, the sleeve and the placement plate are made of a highly transparent non-toxic material, and the non-toxic material is polyvinyl chloride or polypropylene.

Compared with the prior art, the beneficial effects of the present invention are as follows:

1. The present invention sets up an adsorption chamber. When the driving gear rotates and the piston moves upward, the air in the negative pressure adsorption port is sucked out, so that a negative pressure is formed in the negative pressure adsorption port, and the rubber disc at the negative pressure adsorption port makes it close to the skin. Fitting enables the placement plate to be adsorbed on the outside of the skin and fix the entire placement plate;

2. By setting up a positioning mechanism, the present invention uses a push block to push the telescopic column to fix the syringe needle in the positioning ring, which can effectively prevent the needle from deflecting, so that it can always be aligned with the lesion, ensuring accurate injection position;

3. By setting up a pushing mechanism, when the two sliding rods continue to move toward each other, the two pushing rods stagger each other to push the piston handle, and the piston handle moves downward to inject the stem cells into the lesion. By setting up the two pushing rods to stagger each other, the piston is pushed. handle, which can make the piston handle move downward more stably.

Description of the drawings

Figure 1 is a schematic diagram of the three-dimensional structure of the present invention;

Figure 2 is a schematic diagram two of the three-dimensional structure of the present invention;

Figure 3 is a schematic structural diagram of the placement plate of the present invention viewed from above;

Figure 4 is a schematic structural diagram of the telescopic column of the present invention;

Figure 5 is a schematic structural diagram of the positioning mechanism of the present invention;

Figure 6 is a schematic cross-sectional structural diagram of the casing of the present invention;

Figure 7 is a schematic structural diagram of the positioning mechanism and pushing mechanism of the present invention;

Figure 8 is a schematic diagram of the internal structure of the adsorption chamber of the present invention;

Figure 9 is a schematic diagram three of the three-dimensional structure of the present invention.

In the picture: 1. Placement plate; 2. Limiting groove; 3. Rotating plate; 4. Vortex groove; 5. Slider; 6. Casing; 7. Slider; 701, slot; 8. Push block; 801. Sliding column; 9. Positioning column; 10. Telescopic column; 11. Positioning ring; 12. Placement groove; 13. Fixed bump; 14. Fixed rod; 15. Limiting plate; 16. Chute; 17. Limit Block; 18. Limit opening; 19. Push rod; 20. Push rod; 21. Fixed piece; 22. Driving gear; 23. Driven gear; 24. Screw; 25. Threaded hole; 26. Piston block; 27 , negative pressure adsorption port; 28. adsorption chamber; 29. micro suction pump; 30. connector; 31. connection port; 32. spring two; 33. spring one; 34. rubber plate.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some 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 fall within the scope of protection of the present invention.

Embodiment 1

Please refer to Figures 1 to 8. The present invention provides a technical solution: a stem cell introduction system, which includes a placement plate 1. A fully penetrating limiting groove 2 is provided on the upper surface of the placing plate 1, and a fixed axis rotation is provided in the limiting groove 2. The rotating disk 3 is provided with two symmetrical vortex grooves 4. The two vortex grooves 4 are equipped with sliding rods 5 with limited sliding. The sliding rods 5 extend inward through the vortex grooves 4 and are fixedly connected. There is a positioning mechanism;

The positioning mechanism includes a sleeve 6 that runs through the center of the placement plate 1. The bottom end of the sleeve 6 is fixedly connected to a slider 7. The bottom ends of the two sliders 5 are fixedly connected to a push block 8. The upper surface of the push block 8 is provided with a sliding bar 7. There is a through slot 701 for limiting sliding of the strip 7. Opposite sides of the pushing block 8 are fixedly connected with positioning posts 9. One side of the positioning posts 9 is provided with a telescopic column 10. The bottom of the limit slot 2 is fixedly installed at the center of the two sliding rods 5. There is a positioning ring 11. The positioning ring 11 is provided with a through hole for the needle to pass through. The positioning ring 11 is provided with openings corresponding to the telescopic column 10 on both sides.

By providing a positioning mechanism, when the driving gear 22 is rotated clockwise, the sliding rod 5 moves horizontally in the vortex groove 4. When the two sliding rods 5 in the vortex groove 4 move toward each other, the two sliding rods 5 move toward each other. While moving, the sliding column 801 at the bottom of the sliding rod 5 moves relative to the sliding rod 5. A through groove 701 is provided on the upper surface of the pushing block 8 for the sliding bar 7 to limit sliding. The pushing block 8 pushes the sliding bar 7 through the passage. The groove 701 moves downward, the sleeve 6 moves downward with the slider 7, and the syringe in the sleeve 6 moves downward as a whole, and at the same time, the telescopic column 10 on one side of the block 8 is pushed through the openings on both sides of the positioning ring 11 , and fix the syringe needle through the telescopic column 10, and push the telescopic column 10 through the pushing block 8 to clamp and fix the syringe needle in the positioning ring 11, which can effectively prevent the needle from deflecting and keep it aligned with the lesion. , to ensure the injection position is accurate.

As shown in Figures 3, 4 and 5, a through hole is symmetrically opened on the inner contour of the limiting groove 2 close to the pushing block 8. A sliding column 801 for axial movement is provided in the through hole. The sliding column 801 penetrates through the through hole to Extending inward and fixedly connected with the pushing block 8, an opening is provided on the opposite side of the positioning column 9, and a spring 33 is provided on one side of the telescopic column 10 located in the opening.

The telescopic column 10 is provided with a spring 33 on one side inside the opening. The push blocks 8 at the bottom of the two sliding rods 5 push the telescopic column 10 to overcome the elastic force of the spring 33 and shrink inward, and continue to fix the syringe needle, so that the two sliding rods 5 can While the rod 5 moves relative to the scroll groove 4, the syringe and sleeve are fixed to stop moving.

As shown in Figures 5 and 6, a slot 12 for placing a syringe is provided in the center of the upper surface of the sleeve 6. A mounting hole is symmetrically provided on the inner wall of the sleeve 6. A fixing bump 13 is fixedly installed in the mounting hole. The fixing bump 13 is located at the installation position. A spring 32 is provided on one side of the hole, and the protruding part of the fixing bump 13 is in the shape of a semicircle.

A spring 32 is provided on one side of the fixing bump 13 in the installation hole. The syringe is inserted into the sleeve 6 so that it is fixed to a certain extent by the semicircular spherical fixing bump 13. Under a certain pressure, the syringe as a whole overcomes the fixation. The friction force of the bump 13 adjusts the position in the syringe sleeve 6 .

As shown in Figures 1 and 2, the upper surface of the placement plate 1 is symmetrically provided with fixed rods 14. There are two fixed rods 14. The two fixed rods 14 fix the limiting plate 15 on the opposite side. The limiting plate 15 has a sliding surface on the surface. The groove 16 and the sliding rod 5 penetrate the chute 16 and the vortex groove 4 and extend to the bottom of the rotating disk 3. The chute 16 and the vortex groove 4 are both limited and slidingly connected with the sliding rod 5.

The chute 16 and the vortex groove 4 are both limited and slidably connected to the sliding rod 5. The chute 16 and the vortex groove 4 are provided to limit the position of the upper end thereof so that it is always connected to the chute 16 and the vortex groove 4. When the rotating disk 3 rotates, the sliding rod 5 moves horizontally under the limit conditions of the vortex groove 4 and the chute 16.

As shown in Figures 1, 5 and 7, a push mechanism is provided on the upper surface of the fixed rod 14 at one end away from the fixed rod 14. The push mechanism includes a push rod 20, and a limit block 17 is fixedly installed on the sliding rod 5. The limit block 17 is Inverted L shape, the limit block 17 is provided with a limit opening 18, one end of the push rod 20 extends outward through the limit opening 18 and is fixedly connected to the push rod 19, and the bottom of the push rod 20 is located on the limit plate 15 at one end away from the fixed rod 14 , the upper surface of the limiting plate 15 is provided with fixed pieces 21. The fixed pieces 21 are located on both sides of the bottom of the fixed rod 14. The fixed pieces 21 and the push rod 19 are connected through a pin.

By setting up a pushing mechanism, when the sliding rods 5 continue to move toward each other, the two sliding rods 5 push the pushing rod 20 in the limit opening 18 to rotate in the vertical direction with the pin as the center of the circle, and the pushing rod 19 rotates with the pushing rod 20 , after the syringe in the sleeve 6 moves downward to a certain extent, the piston handle is located directly below the push rod 19. When the two push rods 19 are in contact with the piston handle, the two push rods 20 push the piston handle staggered with each other, and the piston handle moves toward The stem cells are injected into the lesion by moving downward. By setting two push rods 20 to alternately push the piston handle, the piston handle can move downward more stably.

As shown in Figures 1 and 8, a driving gear 22 is fixedly connected to the outside of the rotating plate 3, and an adsorption mechanism is drivingly connected to the driving gear 22. The adsorption mechanism includes a driven gear 23. The upper surface of the placing plate 1 is open on one side close to the driving gear 22. The symmetrically arranged opening is connected to the driven gear 23 in fixed-axis rotation through the opening. The driving gear 22 and the driven gear 23 mesh with each other. A threaded hole 25 is opened in the center of the driven gear 23 and a screw rod 24 is threaded through the threaded hole 25. , an adsorption chamber 28 is provided at the bottom of the screw 24, and a piston block 26 is movably connected to the screw 24. A negative pressure adsorption port 27 is provided on the lower surface of the placement plate 1. The negative pressure adsorption port 27 is connected to the adsorption chamber 28, and the adsorption chamber 28 is connected to the negative pressure A one-way valve is provided at the communication point of the adsorption port 27, and a rubber disk 34 is fixedly connected to the bottom of the negative pressure adsorption port 27.

By the driving gear 22 and the driven gear 23 meshing with each other, the rotation of the driving gear 22 drives the two driven gears 23 to rotate. Two screw rods 24 are provided with opposite thread structures. The two screw rods 24 pull upward the piston at the bottom of the adsorption chamber 28 The block 26 causes it to move upward, and a one-way valve is provided at the communication point between the adsorption chamber 28 and the negative pressure adsorption port 27. When the piston block 26 moves upward, the air in the negative pressure adsorption port 27 is sucked out, and a negative pressure adsorption port 27 forms a negative pressure. Press, and use the rubber disc 34 at the negative pressure adsorption port 27 to make it closely fit with the skin, so that the placement tray 1 can be adsorbed on the outside of the skin, and the entire placement tray 1 can be fixed.

As shown in Figure 1, the sleeve 6 and the placement plate 1 are both made of a highly transparent non-toxic material, and the non-toxic material is polyvinyl chloride or polypropylene.

Both the sleeve 6 and the placement plate 1 are made of a highly transparent and non-toxic material, which can directly penetrate the syringe and needle through the placement plate 1 during use, making it convenient to use and observe, prevent accidents, and provide timely Stop operation.

Embodiment 2

As shown in Figures 1 to 9, on the basis of Embodiment 1, the difference is that the adsorption chamber 28 is replaced with a micro air suction pump 29. The specific replacement method is that the adsorption mechanism includes a micro air suction pump 29, placed outside the plate 1 A connector 30 is fixedly connected to one side of the outline, and the connector 30 is fixedly connected to the suction end of the micro suction pump 29. A connection port 31 is provided on the surface of the connector 30, and a one-way connection is provided where the connection port 31 communicates with the negative pressure adsorption port 27. valve.

By setting the micro suction pump 29, by opening the micro suction pump 29, the connector 30 is fixedly connected to the suction end of the micro suction pump 29, and the gas is sucked out from the negative pressure adsorption port 27 through the micro suction pump 29. , a negative pressure is formed in the negative pressure adsorption port 27, so that the placement tray 1 can be adsorbed outside the skin, and the entire placement tray 1 can be fixed.

Working principle: In this stem cell introduction system, before use, the damaged part is disinfected with iodophor, and the rubber disk 34 placed on the lower surface of the disk 1 is disinfected at the same time. The syringe needle is put into the cannula 6 and passed through the sheath. The fixing bump 13 provided on the inner wall of the tube 6 fixes the syringe. The fixing bump 13 fixes the sleeve 6 under the action of the spring 2 32. Both the sleeve 6 and the placement plate 1 are made of a highly transparent and non-toxic material. , it is convenient to observe the position of the syringe through the sleeve 6 and the placement plate 1, and manually push the syringe barrel to make the syringe needle tip pass through the positioning ring 11.

Aim the syringe needle at the lesion, manually rotate the driving gear 22 provided on the outside of the rotating disk 3, and set the driving gear 22 to facilitate the rotation of the rotating disk 3 in the limiting groove 2. Through the chute 16, the two sliding The rod 5 can only move relative or oppositely in the two vortex grooves. The sliding column 801 that penetrates the through hole in the inner wall of the placement plate 1 is fixedly connected to one side of the pushing block 8, and the sliding column 801 slides in the through hole to perform axis movement. To limit the position, the two sliding rods 5 are always guaranteed to move toward each other or backward in the two symmetrical vortex grooves 4.

When the driving gear 22 is manually rotated, the driven gear 23 meshing with the driving gear 22 can be rotated. A threaded hole 25 is opened in the center of the driven gear 23 and a screw rod 24 is threaded through the threaded hole 25. By setting the threaded hole 25 and the screw rod 24, so that the driving gear 22 can rotate against the friction force of the screw rod 24 rotating in the threaded hole 25, so that the rotating disk 3 will not easily rotate and remain stable when it is placed.

When the driving gear 22 drives the two driven gears 23 to rotate in opposite directions, the two screw rods 24 are provided with opposite thread structures, so that the two screw rods 24 move upward in the threaded holes 25, and the two screw rods 24 pull the adsorption chamber 28 upward. The piston block 26 at the bottom causes it to move upward, and a one-way valve is provided in the connection between the adsorption chamber 28 and the negative pressure adsorption port 27. When the piston block 26 moves upward, the air in the negative pressure adsorption port 27 is sucked out, causing it to be adsorbed under negative pressure. A negative pressure is formed in the port 27, and the rubber disc 34 at the port 27 is adsorbed by the negative pressure to make it fit closely with the skin. The whole placement disc 1 is fixed and fixed with the injection device.

Rotate the driving gear 22 clockwise so that the sliding rod 5 moves horizontally in the vortex groove 4. When the two sliding rods 5 in the vortex groove 4 move toward each other, the two sliding rods 5 move toward each other. 5 The sliding column 801 at the bottom moves relative to the sliding rod 5. A through groove 701 for the sliding bar 7 to limit sliding is provided on the upper surface of the pushing block 8. The pushing block 8 pushes the sliding bar 7 to move downward in the through groove 701. , the sleeve 6 moves downward along with the slider 7, and causes the entire syringe in the sleeve 6 to move downward.

When the syringe needle moves downward and penetrates the skin of the lesion, as the driving gear 22 continues to rotate clockwise, the syringe needle moves downward in the positioning ring 11 and penetrates the skin of the lesion to a certain depth, the push block The telescopic column 10 on one side of 8 passes through the openings on both sides of the positioning ring 11, and fixes the syringe needle through the telescopic column 10. By setting the push block 8 to push the telescopic column 10, the syringe needle in the positioning ring 11 is oppositely clamped and fixed. , can effectively prevent the needle from deflecting, so that it is always aligned with the lesion, ensuring accurate injection position.

As the driving gear 22 continues to rotate, the two sliding rods 5 continue to move toward each other in the vortex groove 4. The pushing blocks 8 at the bottom of the two sliding rods 5 push the telescopic column 10 to overcome the spring 33 and continue to move relative to each other, so that 10 is gradually stored in the In 10, the syringe needle is further fixed so that the syringe remains in the same position in the sleeve 6 after moving downward for a certain distance. At this time, the piston handle of the syringe is located at the bottom of the two push rods 19, and moves between the push block 8 and the telescopic column. 10 work together to fix the bottom. The two sliding rods 5 move toward each other to push the push rod 20 in the limit opening 18 to rotate in the vertical direction with the pin as the center of the circle. The push rod 19 rotates with the push rod 20. When the two push rods 19 are in contact with the piston handle, the two push rods 20 push the piston handle alternately with each other, and make the piston handle move downward steadily to inject stem cells into the lesion.

Although the embodiments of the present invention have been shown and described, those of ordinary skill in the art will understand that various changes, modifications, and substitutions can be made to these embodiments without departing from the principles and spirit of the invention. and modifications, the scope of the invention is defined by the appended claims and their equivalents.

Claims (4)

1. Stem cell introduction system, including a placement tray (1), characterized in that: a fully penetrating limiting groove (2) is provided on the upper surface of the placing tray (1), and a fixed groove (2) is provided in the limiting groove (2). A rotating disk (3) that rotates with an axis. The rotating disk (3) is provided with two symmetrical vortex grooves (4), and sliding rods (5) with limited sliding are arranged in the two vortex grooves (4). ), the sliding rod (5) extends inward through the vortex groove (4) and is fixedly connected with a positioning mechanism; The positioning mechanism includes a sleeve (6) that runs through the center of the placement plate (1). The bottom end of the sleeve (6) is fixedly connected with a slider (7), and the two sliders (5) are fixed at the bottom. A push block (8) is connected, and the upper surface of the push block (8) is provided with a through groove (701) for the slide bar (7) to limit sliding; Positioning posts (9) are fixedly connected to the opposite sides of the pushing block (8). A telescopic column (10) is provided on one side of the positioning post (9). The bottom of the limiting groove (2) is located on both sides. A positioning ring (11) is fixedly installed at the center of the sliding rod (5). The positioning ring (11) is provided with a through hole for the needle to pass through. Telescopic columns (11) are provided on both sides of the positioning ring (11). 10) Corresponding opening, the inner contour of the limiting groove (2) is symmetrically provided with a through hole on one side close to the pushing block (8), and a sliding column (801) for axial movement is provided in the through hole. The sliding column (801) extends inward through the through hole and is fixedly connected to the pushing block (8). The positioning column (9) is provided with an opening on the opposite side, and the telescopic column (10) is located on one side of the opening. Spring one (33), the center of the upper surface of the sleeve (6) is provided with a slot (12) for placing the syringe, the inner contour of the sleeve (6) is symmetrically provided with a mounting hole, and the mounting hole is fixedly installed with Fixed bump (13). Two springs (32) are provided on one side of the fixed bump (13) located in the mounting hole. The protruding part of the fixed bump (13) is in the shape of a semicircle. The placement plate (1) There are fixed rods (14) symmetrically arranged on the upper surface. There are two fixed rods (14). The two fixed rods (14) have a limiting plate (15) fixed on the opposite side. The limiting plate (15) ) is provided with a chute (16) on the surface, and the sliding rod (5) penetrates the chute (16) and the vortex groove (4) and extends to the bottom of the rotating disk (3). The chute (16) and the vortex groove (4) The grooves (4) are all slidingly connected with the sliding rod (5). A driving gear (22) is fixedly connected to the outside of the rotating disk (3). The driving gear (22) is connected with an adsorption mechanism. The adsorption mechanism It includes a driven gear (23), and a symmetrically arranged opening is provided on the upper surface of the placement plate (1) close to the driving gear (22) and is rotationally connected to the driven gear (23) through the opening. The gear (22) meshes with the driven gear (23). A threaded hole (25) is opened in the center of the driven gear (23) and a screw rod (24) is threaded through the threaded hole (25). The screw rod (24) 24) An adsorption chamber (28) is provided at the bottom end, the screw (24) is movably connected with a piston block (26), and the upper surface of the fixed rod (14) is provided with a pushing mechanism at one end away from the fixed rod (14). 2. The stem cell introduction system according to claim 1, characterized in that: the pushing mechanism includes a pushing rod (20), a limiting block (17) is fixedly installed on the sliding rod (5), and the limiting block (17) is an inverted L shape, and a limiting opening (18) is provided on the limiting block (17). 3. The stem cell introduction system according to claim 2, characterized in that: one end of the push rod (20) extends outward through the limiting opening (18) and is fixedly connected to the push rod (19). ) is located on the end of the limiting plate (15) away from the fixed rod (14). A fixed piece (21) is provided on the upper surface of the limiting plate (15). The fixed piece (21) is located on the fixed rod (14). On both sides of the bottom, the fixed piece (21) and the push rod (19) are connected through pins. 4. The stem cell introduction system according to claim 1, characterized in that: a negative pressure adsorption port (27) is provided on the lower surface of the placement plate (1), and the negative pressure adsorption port (27) and the adsorption chamber (28) ), a one-way valve is provided at the connection point between the adsorption chamber (28) and the negative pressure adsorption port (27), and a rubber disk (34) is fixedly connected to the bottom of the negative pressure adsorption port (27).