CN115192826A - Stem cell introduction system - Google Patents

Abstract

The invention discloses a stem cell introduction system, which comprises a placing plate, the upper surface of the placing plate is provided with a limit groove that completely penetrates, a rotating plate rotating with a fixed axis is arranged in the limit groove, and the rotating plate is provided with two symmetrical vortex grooves. Both the two scroll grooves are provided with sliding rods with limited sliding position. The sliding rods extend inward through the scroll grooves and are fixedly connected with a positioning mechanism. The positioning mechanism includes a sleeve that runs through the center of the placing plate. For the slide bar, the bottom ends of the two slide bars are fixedly connected with a push block, and the upper surface of the push block is provided with a through slot for the limit sliding of the slide bar. The opposite side of the push block is fixedly connected with a positioning column, and one side of the positioning column is provided with a positioning column. Telescopic column. The present invention has the advantages of preventing the needle from deviating, so that the syringe can be accurately positioned during the injection process, and solves the problem that the needle is easily deviated during the injection process of the existing stem cells, which leads to the deviation of the injection position, and it is difficult to transport the stem cells to the lesion site. question.

Description

stem cell delivery system

technical field

The invention relates to the technical field of stem cell introduction, in particular to a stem cell introduction system.

Background technique

Stem cells are pluripotent cells with self-renewal and self-replication capabilities. Stem cells can be divided into embryonic stem cells and adult stem cells, which can be classified into totipotent stem cells, pluripotent stem cells, and unipotent stem cells according to different differentiation potentials.

Among them, mesenchymal stem cells have the characteristics of multi-directional differentiation potential, hematopoietic support and promotion of stem cell engraftment, immune regulation and self-replication, and have attracted increasing attention. Mesenchymal stem cells can differentiate into various tissue cells such as fat, bone, cartilage, muscle, tendon, ligament, nerve, liver, myocardium, and endothelium under specific induction conditions in vivo or in vitro. Organ damage repair has a wide range of functions. In the process of using stem cells, the cultured stem cells need to be injected into the damaged or diseased site through a syringe. During the injection process, an experienced physician needs to use the syringe to accurately inject the stem cells to the designated area. However, the existing syringe is difficult to accurately locate during the injection process, and the needle is prone to deviation, resulting in deviation of the injection position, and it is difficult to deliver the stem cells to the lesion site. In view of the above problems, the present invention provides a stem cell introduction system.

SUMMARY OF THE INVENTION

The purpose of the present invention is to provide a stem cell introduction system, which has the advantages of effectively preventing the needle from being displaced, so that the syringe can be accurately positioned during the injection process, and solves the problem that the needle is prone to displacement during the existing stem cell injection process, resulting in deviation of the injection position, Difficulty delivering stem cells to lesions.

In order to achieve the above purpose, the present invention provides the following technical solution: a stem cell introduction system, including a placing plate, a limit groove that completely penetrates is opened on the upper surface of the placing plate, and a rotating plate that rotates with a fixed axis is arranged in the limit groove, The rotating disk is provided with two symmetrical scroll grooves, and a sliding rod with limited sliding is arranged in the two scroll grooves, and the sliding rod extends inward through the scroll groove and is fixedly connected with a positioning mechanism;

The positioning mechanism includes a sleeve penetrating the center of the placing plate, the bottom end of the sleeve is fixedly connected with a sliding bar, the bottom ends of the two sliding rods are fixedly connected with a push block, and the upper surface of the push block is provided with an opening for A through slot for the limit sliding of the slider, a positioning column is fixedly connected to the opposite side of the push block, a telescopic column is arranged on one side of the positioning column, and the bottom of the limit slot is fixed at the center of the two sliding 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, a through hole is symmetrically opened on one side of the limiting groove close to the push block, the through hole is provided with a sliding column that moves axially, and the sliding column extends inward through the through hole and is fixed to the push block An opening is provided on the opposite side of the positioning column, and a spring 1 is provided on the side of the telescopic column located in the opening.

Preferably, the center of the upper surface of the sleeve is provided with a placement groove for placing the syringe, the inner contour of the sleeve is symmetrically provided with installation holes, and the installation holes are fixedly installed with fixing bumps, and the fixing bumps are located in the installation holes. One side is provided with a second spring, and the protruding part of the fixing projection is hemispherical.

Preferably, the upper surface of the placing plate is symmetrically provided with fixed rods, and there are two fixed rods, and the two fixed rods are fixed on opposite sides of a limit plate, and the surface of the limit board is provided with a chute, so The sliding rod penetrates through the sliding groove and the scroll groove and extends to the bottom of the rotating disk, and the sliding groove and the scroll groove are both connected with the sliding rod to limit sliding.

Preferably, the upper surface of the fixing rod is provided with a pushing mechanism at one end away from the fixing rod, the pushing mechanism includes a pushing rod, and a limit block is fixedly installed on the sliding rod, the limit block is an inverted L shape, and the limit A limit port is set on the position block, one end of the push rod extends outward through the limit port and is fixedly connected to the push rod, the bottom of the push rod is located on the end of the limit plate away from the fixed rod, and the upper surface of the limit board is provided There are fixed pieces, the fixed pieces are located on both sides of the bottom of the fixed rod, and the fixed pieces are connected with the push rod through pins.

Preferably, a driving gear is fixedly connected to the outside of the rotating plate, an adsorption mechanism is connected to the driving gear, and the adsorption mechanism includes a driven gear, and symmetrically arranged openings are opened on the upper surface of the placing plate near the driving gear. And through the opening, it is connected with the fixed axis of the driven gear, the driving gear and the driven gear are meshed with each other, the center of the driven gear is provided with a threaded hole, and a screw is screwed through the screw hole, and the bottom end of the screw is provided with There is an adsorption chamber, a piston is movably connected to the screw, a negative pressure adsorption port is opened on the lower surface of the placing plate, the negative pressure adsorption port is connected with the adsorption chamber, and a single suction port is provided at the connection between the adsorption chamber and the negative pressure adsorption port. To the valve, a rubber disc is fixedly connected to the bottom of the negative pressure adsorption port.

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

Preferably, the sleeve and the placing plate are both 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. In the present invention, by setting up an adsorption cavity, when the driving gear rotates, the air in the negative pressure adsorption port is sucked out when the piston moves upward, so that a negative pressure is formed in the negative pressure adsorption port, and the rubber plate at the negative pressure adsorption port is used to make it close to the skin. By fitting, the placing plate can be adsorbed on the outside of the skin, and the whole placing plate can be fixed;

2. In the present invention, a positioning mechanism is set, and a push block pushes a telescopic column to fix the syringe needle in the positioning ring, which can effectively prevent the needle from shifting, so that it is always aligned with the damaged part, and the injection position is accurate;

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

Description of drawings

Fig. 1 is three-dimensional structure schematic diagram one of the present invention;

Fig. 2 is the three-dimensional structure schematic diagram two of the present invention;

Fig. 3 is the bottom view structure schematic diagram of placing plate of the present invention;

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

Fig. 5 is the first structural schematic diagram of the positioning mechanism of the present invention;

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

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

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

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

In the figure: 1. Placing plate; 2. Limiting groove; 3. Rotating plate; 4. Spiral groove; 5. Slide rod; 6. Sleeve; 7. Slider; 701, Through groove; 801, sliding column; 9, positioning column; 10, telescopic column; 11, positioning ring; 12, placing slot; 13, fixing bump; 14, fixing rod; 15, limit plate; 16, chute; 17, limit Position block; 18, limit port; 19, push rod; 20, push rod; 21, fixed piece; 22, driving gear; 23, driven gear; 24, screw rod; 25, threaded hole; 26, piston block; 27 , negative pressure adsorption port; 28, adsorption chamber; 29, micro suction pump; 30, connecting head; 31, connecting port; 32, spring two; 33, spring one; 34, rubber disc.

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 a part of the embodiments of the present invention, but not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

Example 1

Please refer to FIG. 1 to FIG. 8 , the present invention provides a technical solution: a stem cell introduction system, including a placing plate 1 , a limit groove 2 completely penetrated on the upper surface of the placing plate 1, and a fixed axis rotation is arranged in the limit groove 2 The rotating disk 3, the rotating disk 3 is provided with two symmetrical scroll grooves 4, and the two scroll grooves 4 are provided with a limited sliding sliding rod 5, and the sliding rod 5 extends inward through the scroll groove 4 and is 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 with a sliding bar 7, the bottom ends of the two sliding bars 5 are fixedly connected with a push block 8, and the upper surface of the push block 8 is provided with a sliding supply. The through slot 701 for the limit sliding of the bar 7, the opposite side of the push block 8 is fixedly connected with a positioning column 9, one side of the positioning column 9 is provided with a telescopic column 10, and the bottom of the limit slot 2 is located at the center of the two sliding rods 5. Fixed installation There is a positioning ring 11 , the positioning ring 11 is provided with a through hole for the needle to pass through, and the two sides of the positioning ring 11 are provided with openings corresponding to the telescopic column 10 .

By setting the positioning mechanism, when the driving gear 22 is rotated clockwise, the sliding rod 5 moves in the horizontal direction in the scroll groove 4. When the two sliding rods 5 in the scroll groove 4 move toward each other, the two sliding rods 5 face each other. While moving, the sliding column 801 at the bottom of the sliding bar 5 moves toward each other with the sliding bar 5. The upper surface of the push block 8 is provided with a through slot 701 for the limited sliding of the sliding bar 7, and the pushing block 8 pushes the sliding bar 7 to pass through. The groove 701 moves downward, the sleeve 6 moves downward along with the slider 7, and makes the syringe in the sleeve 6 move downward as a whole, and simultaneously pushes the telescopic column 10 on one side of the block 8 to pass 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 push block 8 to clamp and fix the syringe needle in the positioning ring 11 oppositely, which can effectively prevent the needle from shifting and make it always align with the lesion. , to ensure that the injection location is accurate.

As shown in Fig. 3, Fig. 4 and Fig. 5, the inner contour of the limiting groove 2 is symmetrically provided with a through hole on the side close to the push block 8, and a sliding column 801 for axial movement is arranged in the through hole. It extends inside and is fixedly connected with the push block 8 , an opening is provided on the opposite side of the positioning column 9 , and a spring 33 is provided on the side of the telescopic column 10 on the inner side of the opening.

The telescopic column 10 is provided with a spring one 33 on the inner side of the opening, and the push block 8 at the bottom of the two sliding rods 5 pushes the telescopic column 10 to shrink inward against the elastic force of the spring one 33, and continues to fix the syringe needle, which can make the two sliding When the rod 5 moves relative to the scroll groove 4, the syringe and the sleeve are fixed to stop moving.

As shown in Figures 5 and 6, a placement groove 12 for placing a syringe is opened in the center of the upper surface of the sleeve 6, and a mounting hole is symmetrically opened on the inner wall of the sleeve 6, and a fixed projection 13 is fixedly installed in the installation hole, and the fixed projection 13 is located in the installation hole. One side of the hole is provided with a second spring 32, and the protruding part of the fixing protrusion 13 is hemispherical.

The second spring 32 is provided on the side of the fixing bump 13 in the mounting hole, and the syringe is inserted into the sleeve 6, so that it is fixed to a certain extent by the hemispherical fixing bump 13, and the syringe as a whole overcomes the fixed pressure under a certain pressure. The frictional force of the bump 13 adjusts the position in the syringe cannula 6 .

As shown in Figures 1 and 2, the upper surface of the placing tray 1 is symmetrically provided with fixed rods 14, and two fixed rods 14 are provided. The groove 16 and the sliding rod 5 penetrate through the sliding groove 16 and the scroll groove 4 and extend to the bottom of the rotating disk 3 .

The sliding groove 16 and the scroll groove 4 are both connected with the sliding rod 5 in a limited position and sliding, and the upper end of the sliding groove 16 and the scroll groove 4 are provided to limit the upper end, so that it can always remain in contact with the sliding groove 16 and the scroll groove 4. There is a sliding connection between them, and when the rotating disk 3 rotates, the sliding rod 5 moves in a horizontal direction under the limiting condition of the scroll groove 4 and the sliding groove 16 .

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

By setting the push mechanism, when the sliding rods 5 continue to move toward each other, the two sliding rods 5 push the push rods 20 in the limit opening 18 to rotate in the vertical direction with the pin shaft as the center of the circle, and the push rods 19 rotate with the push rods 20 , after the syringe in the sleeve 6 moves down to a certain extent, the piston handle is located just 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 alternately, and the piston handle moves toward the piston handle. The downward movement injects the stem cells into the lesion site, and by setting the two push rods 20 to push the piston handle in a staggered manner, the piston handle can move downward more stably.

As shown in FIG. 1 and FIG. 8 , a driving gear 22 is fixedly connected to the outer side of the rotating plate 3, and an adsorption mechanism is connected to the driving gear 22 in a driving manner. The opening is symmetrically arranged and is connected with the driven gear 23 in a fixed axis through the opening. The driving gear 22 and the driven gear 23 are meshed with each other. The center of the driven gear 23 is provided with a threaded hole 25 and a screw 24 is screwed through the threaded hole 25. The bottom end of the screw 24 is provided with an adsorption cavity 28, the screw 24 is movably connected with a piston block 26, a negative pressure adsorption port 27 is opened on the lower surface of the placing plate 1, the negative pressure adsorption port 27 is connected with the adsorption cavity 28, and the adsorption cavity 28 is connected with the negative pressure. A one-way valve is provided at the connecting part of the adsorption port 27 , and a rubber disc 34 is fixedly connected to the bottom of the negative pressure adsorption port 27 .

The driving gear 22 and the driven gear 23 are meshed with each other, and the rotation of the driving gear 22 drives the two driven gears 23 to rotate. The two screws 24 are provided with opposite thread structures, and the two screws 24 pull the piston at the bottom of the adsorption chamber 28 upward. The block 26 makes it move upward, and a one-way valve is provided at 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, and a negative pressure is formed in the negative pressure adsorption port 27. pressure, and the rubber disc 34 at the negative pressure suction port 27 makes it closely fit with the skin, so that the placing plate 1 can be adsorbed on the outside of the skin, and the whole placing plate 1 can be fixed.

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

The sleeve 6 and the placing plate 1 are both made of a highly transparent and non-toxic material, so that the syringe and the needle can be directly penetrated through the placing plate 1, which is convenient for use and observation, and prevents accidents from occurring in a timely manner. Stop the operation.

Embodiment 2

As shown in FIGS. 1 to 9 , on the basis of the first embodiment, the difference is that the adsorption chamber 28 is replaced with a micro-aspirator 29 , and the specific replacement is that the adsorption mechanism includes a micro-aspirator 29 , which is placed outside the tray 1 . A connecting head 30 is fixedly connected on one side of the profile, and the connecting head 30 is fixedly connected with the suction end of the micro-aspirator 29. The surface of the connecting head 30 is provided with a connecting port 31, and the connecting port 31 is connected with the negative pressure adsorption port 27. One-way is provided. valve.

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

Working principle: The stem cells are introduced into the system. Before use, the lesions are sterilized by iodophor, and at the same time, the rubber disk 34 on the lower surface of the disk 1 is sterilized. The fixed bump 13 provided on the inner wall of the tube 6 fixes the syringe, and the fixed bump 13 fixes the sleeve 6 under the action of the spring two 32, and the sleeve 6 and the placing plate 1 are made of a kind of highly transparent and non-toxic material. , it is convenient to observe the position of the syringe through the cannula 6 and the placing plate 1 , and manually push the syringe barrel to make the syringe needle pass through the positioning ring 11 .

Align the syringe needle with the damaged part, 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 limit groove 2. The rod 5 can only move relative to or opposite to each other in the two scroll grooves. A sliding column 801 is fixedly connected to one side of the push block 8 through the through hole in the inner wall of the placing plate 1, and the sliding column 801 slides in the through hole to carry out the axis. To limit the position, so that the two sliding rods 5 in the two symmetrical spiral grooves 4 always ensure the opposite movement or the backward movement.

When the driving gear 22 is manually rotated, the driven gear 23 that meshes with the driving gear 22 can be rotated. A threaded hole 25 is formed in the center of the driven gear 23 and a screw 24 is screwed through the threaded hole 25. And the screw 24 can make the driving gear 22 rotate against the friction force of the screw 24 rotating in the threaded hole 25, so that the rotating disk 3 will not easily rotate and maintain stability in the placed state.

When the driving gear 22 drives the two driven gears 23 to rotate in the opposite direction, the two screws 24 are provided with opposite thread structures, so that the two screws 24 move upward in the threaded holes 25, and the two screws 24 pull the adsorption chamber 28 upward. The piston block 26 at the bottom makes it move upward, and a one-way valve is provided at the connection between the adsorption chamber 28 and the negative pressure adsorption port 27. When the piston block 26 moves upwards, the air in the negative pressure adsorption port 27 is sucked out to make it negative pressure adsorption. Negative pressure is formed in the port 27, and the rubber disk 34 at the negative pressure suction port 27 is used to make it closely fit with the skin to fix the whole placing disk 1 and fix it with the injection device.

Rotate the driving gear 22 clockwise to make the sliding rod 5 move in the horizontal direction in the scroll groove 4. When the two sliding rods 5 in the scroll groove 4 move towards each other, when the two sliding rods 5 move towards each other, the sliding rod 5 moves towards each other. 5. The sliding column 801 at the bottom moves toward each other with the sliding rod 5, and the upper surface of the push block 8 is provided with a through groove 701 for the sliding bar 7 to limit sliding, and the pushing block 8 pushes the sliding bar 7 to move downward in the through groove 701. , the sleeve 6 moves downward with the sliding bar 7, and makes the syringe in the sleeve 6 move downward as a whole.

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

As the driving gear 22 continues to rotate, the two sliding rods 5 continue to move toward each other in the scroll groove 4, and the push block 8 at the bottom of the two sliding rods 5 pushes the telescopic column 10 to overcome the spring-33 to continue the relative movement so that the 10 is gradually accommodated in the In 10, the needle of the syringe is further fixed so that the syringe remains in the same position in the casing 6 after moving downward for a period of time. 10 fix its bottom under the joint action, the two sliding rods 5 move towards each other and push the push rod 20 in the limit opening 18 to rotate in the vertical direction with the pin shaft as the center of the circle, and 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 the stem cells into the lesion site.

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

Claims (6)

1. A stem cell introduction system, comprising a placing plate (1), characterized in that: a limit groove (2) that completely penetrates is provided on the upper surface of the placing plate (1), and a limit groove (2) is provided in the limit groove (2). A rotating disk (3) that rotates on a shaft, the rotating disk (3) is provided with two symmetrical scroll grooves (4), and a sliding rod (5) with limited sliding is arranged in the two scroll grooves (4). ), the sliding rod (5) extends inward through the scroll groove (4) and is fixedly connected with a positioning mechanism. 2. The stem cell introduction system according to claim 1, wherein the positioning mechanism comprises a sleeve (6) penetrating through the center of the placing plate (1), and a bottom end of the sleeve (6) is fixedly connected with a sliding sleeve. bar (7), the bottom ends of the two sliding bars (5) are fixedly connected with a push block (8), and the upper surface of the push block (8) is provided with a through groove ( 701). 3 . The stem cell introduction system according to claim 2 , wherein a positioning column ( 9 ) is fixedly connected to the opposite side of the pushing block ( 8 ), and one side of the positioning column ( 9 ) is provided with a telescopic A column (10), the bottom of the limit groove (2) is located at the center of the two sliding rods (5), and a positioning ring (11) is fixedly installed, and the positioning ring (11) is provided with a needle to pass through. A through hole is provided on both sides of the positioning ring (11) with openings corresponding to the telescopic column (10). An axially moving sliding column (801) is arranged in the through hole, the sliding column (801) extends inward through the through hole and is fixedly connected with the push block (8), and the positioning column (9) is arranged on the opposite side An opening is provided, the telescopic column (10) is provided with a spring one (33) on the inner side of the opening, and a placement groove (12) for placing the syringe is provided in the center of the upper surface of the sleeve (6). 6) The inner contour is symmetrically provided with mounting holes, and a fixing bump (13) is fixedly installed in the mounting hole, and a spring two (32) is arranged on one side of the fixing bump (13) inside the mounting hole. The protruding parts of the projections (13) are hemispherical, and the upper surface of the placing plate (1) is symmetrically provided with fixed rods (14), two of the fixed rods (14), and two of the fixed rods (14) A limiter plate (15) is fixed on the opposite side, a chute (16) is formed on the surface of the limiter plate (15), and the sliding rod (5) penetrates through the chute (16) and the scroll groove (4) and extends To the bottom of the rotating disk (3), the sliding groove (16) and the scroll groove (4) are connected with the sliding rod (5) in a limited position and sliding, and the outer side of the rotating disk (3) is fixedly connected with a driving gear (22) , the driving gear (22) is connected with an adsorption mechanism, the adsorption mechanism includes a driven gear (23), and the upper surface of the placing plate (1) close to the driving gear (22) is provided with symmetrically arranged openings. Through the opening, it is connected with the driven gear (23) in fixed axis rotation, the driving gear (22) and the driven gear (23) are meshed with each other, and the driven gear (23) is provided with a threaded hole (25) in the center and passes through the driven gear (23). The screw hole (25) is screwed with a screw rod (24), the bottom end of the screw rod (24) is provided with an adsorption cavity (28), the screw rod (24) is movably connected with a piston block (26), and the fixing rod ( 14) A pushing mechanism is provided on the end of the upper surface away from the fixing rod (14). 4. The stem cell introduction system according to claim 3, wherein the push mechanism comprises a push rod (20), a limit block (17) is fixedly installed on the slide rod (5), and the limit block (17) is an inverted L shape, and a limit opening (18) is provided on the limit block (17). 5. The stem cell introduction system according to claim 4, characterized in that: one end of the push rod (20) extends outward through the limit opening (18) and is fixedly connected to the push rod (19), the push rod (20) ) is located at the end of the limiting plate (15) away from the fixing rod (14), the upper surface of the limiting plate (15) is provided with a fixing piece (21), and the fixing piece (21) is located on the fixing rod (14) On both sides of the bottom, the fixed piece (21) is connected with the push rod (19) through a pin shaft. 6 . The stem cell introduction system according to claim 3 , wherein a negative pressure adsorption port ( 27 ) is opened on the lower surface of the placing plate ( 1 ), and the negative pressure adsorption port ( 27 ) is connected to an adsorption cavity ( 28 ). 7 . ) through, a one-way valve is provided at the communication between the adsorption cavity (28) and the negative pressure adsorption port (27), and a rubber disc (34) is fixedly connected to the bottom of the negative pressure adsorption port (27).

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