CN115192826B - Stem cell introduction system - Google Patents
Stem cell introduction system Download PDFInfo
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- CN115192826B CN115192826B CN202210703123.6A CN202210703123A CN115192826B CN 115192826 B CN115192826 B CN 115192826B CN 202210703123 A CN202210703123 A CN 202210703123A CN 115192826 B CN115192826 B CN 115192826B
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- fixedly connected
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- rod
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/008—Racks for supporting syringes or needles
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/178—Syringes
- A61M5/31—Details
- A61M5/315—Pistons; Piston-rods; Guiding, blocking or restricting the movement of the rod or piston; Appliances on the rod for facilitating dosing ; Dosing mechanisms
- A61M5/31511—Piston or piston-rod constructions, e.g. connection of piston with piston-rod
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61M—DEVICES FOR INTRODUCING MEDIA INTO, OR ONTO, THE BODY; DEVICES FOR TRANSDUCING BODY MEDIA OR FOR TAKING MEDIA FROM THE BODY; DEVICES FOR PRODUCING OR ENDING SLEEP OR STUPOR
- A61M5/00—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests
- A61M5/42—Devices for bringing media into the body in a subcutaneous, intra-vascular or intramuscular way; Accessories therefor, e.g. filling or cleaning devices, arm-rests having means for desensitising skin, for protruding skin to facilitate piercing, or for locating point where body is to be pierced
- A61M5/427—Locating point where body is to be pierced, e.g. vein location means using ultrasonic waves, injection site templates
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
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- Health & Medical Sciences (AREA)
- Vascular Medicine (AREA)
- Engineering & Computer Science (AREA)
- Anesthesiology (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Hematology (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Dermatology (AREA)
- Infusion, Injection, And Reservoir Apparatuses (AREA)
Abstract
The invention discloses a stem cell leading-in system, which comprises a placing disc, wherein the upper surface of the placing disc is provided with a completely penetrating limit groove, the limit groove is internally provided with a rotating disc with a fixed shaft rotating, the rotating disc is provided with two symmetrical vortex grooves, the two vortex grooves are internally provided with limit sliding slide bars, the slide bars penetrate through the vortex grooves to inwards extend and are fixedly connected with a positioning mechanism, the positioning mechanism comprises a sleeve penetrating through the center of the placing disc, the bottom ends of the sleeve are fixedly connected with slide bars, the bottom ends of the two slide bars are fixedly connected with pushing blocks, the upper surface of each pushing block is provided with a through groove for limiting sliding of the slide bars, the opposite sides of the pushing blocks are fixedly connected with positioning columns, and one side of each positioning column is provided with a telescopic column. The invention has the advantages of preventing the needle from shifting and ensuring the injector to be accurately positioned in the injection process, and solves the problems that the needle is easy to shift in the existing stem cell injection process, the injection position is deviated, and the stem cells are difficult to be conveyed to the lesion part.
Description
Technical Field
The invention relates to the technical field of stem cell introduction, in particular to a stem cell introduction system.
Background
Stem cells are a class of multipotent cells with self-renewing, self-replicating capacity. Stem cells can be classified into embryonic stem cells and adult stem cells, and can be classified into totipotent stem cells, pluripotent stem cells, and multipotent stem cells according to different differentiation potential classes, which have characteristics of multipotent differentiation potential, unlimited division, proliferation, etc.
The mesenchymal stem cells have the characteristics of multidirectional differentiation potential, hematopoietic support, promotion of stem cell implantation, immune regulation, self replication and the like, and are increasingly attracting attention. The mesenchymal stem cells can be differentiated into various tissue cells such as fat, bone, cartilage, muscle, tendon, ligament, nerve, liver, cardiac muscle, endothelial and the like under specific induction conditions in vivo or in vitro, and have wide effects on repairing tissue and organ injuries caused by aging and pathological changes. In view of the above, the present invention provides a stem cell introduction system.
Disclosure of Invention
The invention aims to provide a stem cell introducing system which has the advantages of effectively preventing the needle from shifting and ensuring that an injector of the stem cell introducing system is accurately positioned in the injection process, and solves the problems that the needle is easy to shift in the injection process of the existing stem cells, the injection position is deviated, and the stem cells are difficult to be conveyed to a lesion part.
In order to achieve the above purpose, the present invention provides the following technical solutions: the stem cell guiding system comprises a placing disc, wherein a limit groove which is completely penetrated is formed in the upper surface of the placing disc, a rotating disc which is rotated by a fixed shaft is arranged in the limit groove, two symmetrical vortex grooves are formed in the rotating disc, limit sliding rods are arranged in the two vortex grooves, and the sliding rods penetrate through the vortex grooves to extend inwards and are fixedly connected with a positioning mechanism;
the locating mechanism comprises a sleeve penetrating through the center of the placing disc, the bottom end of the sleeve is fixedly connected with a slide bar, the bottom ends of the slide bars are fixedly connected with a pushing block, a through groove for limiting sliding of the slide bar is formed in the upper surface of the pushing block, locating columns are fixedly connected to opposite sides of the pushing block, telescopic columns are arranged on one sides of the locating columns, the bottoms of the limiting grooves are located on the two sides of the locating columns, locating rings are fixedly arranged at the center of the slide bars, through holes for a needle head to pass through are formed in the locating rings, and openings corresponding to the telescopic columns are formed in two sides of the locating rings.
Preferably, through holes are symmetrically formed in one side, close to the pushing block, of the inner outline of the limiting groove, sliding columns capable of axially moving are arranged in the through holes, extend inwards through the through holes and are fixedly connected with the pushing block, openings are formed in one side, opposite to the positioning columns, of the telescopic columns, and springs I are arranged on one side, located in the openings, of the telescopic columns.
Preferably, the center of the upper surface of the sleeve is provided with a placing groove for placing the syringe, the inner contour of the sleeve is symmetrically provided with a mounting hole, a fixing lug is fixedly arranged in the mounting hole, one side of the fixing lug, which is positioned in the mounting hole, is provided with a spring II, and the protruding part of the fixing lug is hemispherical.
Preferably, the upper surface symmetry of placing the dish is provided with the dead lever, the dead lever is provided with two, two the dead lever is fixed with the limiting plate on one side relatively, the spout has been seted up on the limiting plate surface, the slide bar runs through spout and vortex groove and extends to the rolling disc bottom, spout and vortex groove all limit sliding connection with the slide bar.
Preferably, the dead lever upper surface is kept away from dead lever one end and is provided with pushing mechanism, pushing mechanism includes the catch bar, fixed mounting has the stopper on the slide bar, the stopper is the type of falling L, the spacing mouth has been seted up on the stopper, catch bar one end runs through spacing mouthful outwards extension and fixed connection catch bar, the bottom of catch bar is located keeping away from dead lever one end on the limiting plate, the limiting plate upper surface is provided with the stationary blade, the stationary blade is located dead lever bottom both sides, the stationary blade passes through pin hub connection with the catch bar.
Preferably, the driving gear is fixedly connected with the outer side of the rotating disc, the driving gear is connected with the adsorption mechanism, the adsorption mechanism comprises a driven gear, an opening which is symmetrically arranged is formed in one side, close to the driving gear, of the upper surface of the placing disc and is rotationally connected with the driven gear through the opening, the driving gear and the driven gear are meshed with each other, a threaded hole is formed in the center of the driven gear and is in threaded connection with a screw rod through the threaded hole, an adsorption cavity is formed in the bottom end of the screw rod, a piston is movably connected with the screw rod, a negative pressure adsorption port is formed in the lower surface of the placing disc, the negative pressure adsorption port is communicated with the adsorption cavity, a one-way valve is arranged at the position, which is communicated with the negative pressure adsorption port, of the bottom of the negative pressure adsorption port, and the rubber disc is fixedly connected with.
Preferably, the adsorption mechanism comprises a miniature suction pump, one side of the outer outline of the placing disc is fixedly connected with a connector, the connector is fixedly connected with the suction end of the miniature suction pump, a connecting port is formed in the surface of the connector, and a one-way valve is arranged in the connecting port.
Preferably, the sleeve and the placing plate are both made of a high-transparency nontoxic material, and the nontoxic material is polyvinyl chloride or polypropylene.
Compared with the prior art, the invention has the following beneficial effects:
1. according to the invention, the adsorption cavity is arranged, when the driving gear rotates, the piston sucks air in the negative pressure adsorption port when moving upwards, so that negative pressure is formed in the negative pressure adsorption port, the negative pressure adsorption port is tightly attached to the skin through the rubber disc at the negative pressure adsorption port, the placing disc can be adsorbed on the outer side of the skin, and the whole placing disc is fixed;
2. according to the invention, the positioning mechanism is arranged, the telescopic column is pushed by the pushing block to fix the needle head of the injector in the positioning ring, so that the needle head can be effectively prevented from shifting, the needle head is always aligned to the lesion part, and the injection position is ensured to be accurate;
3. through setting up pushing mechanism, when two slide bars last opposite movement, two push rods are crisscross each other to promote the piston handle, and piston handle downward movement is injected stem cell to lesion position, through setting up two push rods and crisscross each other to promote the piston handle, can make the more stable downward movement of piston handle.
Drawings
FIG. 1 is a schematic perspective view of the present invention;
FIG. 2 is a schematic diagram of a second perspective structure of the present invention;
FIG. 3 is a schematic view of a bottom view of the tray of the present invention;
FIG. 4 is a schematic view of a telescopic column according to the present invention;
FIG. 5 is a schematic diagram of a positioning mechanism according to the present invention;
FIG. 6 is a schematic cross-sectional view of a sleeve according to the present invention;
FIG. 7 is a schematic view of the positioning mechanism and pushing mechanism of the present invention;
FIG. 8 is a schematic view of the internal structure of the adsorption chamber of the present invention;
fig. 9 is a schematic perspective view of the third embodiment of the present invention.
In the figure: 1. placing a tray; 2. a limit groove; 3. a rotating disc; 4. a vortex-like groove; 5. a slide bar; 6. a sleeve; 7. a slide bar; 701. a through groove; 8. a pushing block; 801. a sliding column; 9. positioning columns; 10. a telescopic column; 11. a positioning ring; 12. a placement groove; 13. a fixing bump; 14. a fixed rod; 15. a limiting plate; 16. a chute; 17. a limiting block; 18. a limit opening; 19. a push rod; 20. a push rod; 21. a fixing piece; 22. a drive gear; 23. a driven gear; 24. a screw; 25. a threaded hole; 26. a piston block; 27. a negative pressure adsorption port; 28. an adsorption chamber; 29. a micro getter pump; 30. a connector; 31. a connection port; 32. a second spring; 33. a first spring; 34. a rubber plate.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1
Referring to fig. 1 to 8, the present invention provides a technical solution: the stem cell leading-in system comprises a placing disc 1, wherein a limit groove 2 which is completely penetrated is formed in the upper surface of the placing disc 1, a rotating disc 3 which is rotated by a fixed shaft is arranged in the limit groove 2, two symmetrical vortex grooves 4 are formed in the rotating disc 3, a limit sliding slide rod 5 is arranged in each of the two vortex grooves 4, and the slide rod 5 penetrates through the vortex grooves 4 to extend inwards and is fixedly connected with a positioning mechanism;
the positioning mechanism comprises a sleeve 6 penetrating through the center of the placing plate 1, the bottom end of the sleeve 6 is fixedly connected with a slide bar 7, the bottom ends of two slide bars 5 are fixedly connected with a pushing block 8, through grooves 701 for limiting sliding of the slide bar 7 are formed in the upper surface of the pushing block 8, positioning columns 9 are fixedly connected to opposite sides of the pushing block 8, telescopic columns 10 are arranged on one sides of the positioning columns 9, positioning rings 11 are fixedly arranged at the center of the two slide bars 5 at the bottoms of the limiting grooves 2, through holes for a needle head to pass through are formed in the positioning rings 11, and openings corresponding to the telescopic columns 10 are formed in two sides of the positioning rings 11.
Through setting up positioning mechanism, when clockwise rotation driving gear 22, make and carry out the horizontal direction removal in slide bar 5 in vortex groove 4, when two slide bars 5 in vortex groove 4 move in opposite directions, the slip post 801 of slide bar 5 bottom carries out the opposite directions along with slide bar 5 when two slide bars 5 move in opposite directions, set up through pushing block 8 upper surface and supply the spacing gliding logical groove 701 of draw runner 7, pushing block 8 promotes draw runner 7 and moves down in logical groove 701, sleeve pipe 6 moves down along with draw runner 7, and make the whole downward movement of syringe in sleeve pipe 6, simultaneously promote the opening of the telescopic column 10 of one side of block 8 through the holding ring 11 both sides, and fix the syringe needle through telescopic column 10 to the holding ring 11 that carries out opposite directions, can effectively prevent that the syringe needle from taking place the skew, make it aim at the disease position all the time, guarantee that the injection position is accurate.
As shown in fig. 3, 4 and 5, a through hole is symmetrically formed in the inner contour of the limiting groove 2 near one side of the pushing block 8, a sliding column 801 which moves axially is arranged in the through hole, the sliding column 801 extends inwards through the through hole and is fixedly connected with the pushing block 8, an opening is formed in the opposite side of the positioning column 9, and a first spring 33 is arranged on the side, located in the opening, of the telescopic column 10.
The first spring 33 is arranged on one side of the telescopic column 10 positioned in the opening, the pushing blocks 8 at the bottoms of the two sliding rods 5 push the telescopic column 10 to overcome the elastic force of the first spring 33 and retract inwards, the needle head of the injector is continuously fixed, and the two sliding rods 5 can be fixed to stop moving while the vortex-shaped grooves 4 move relatively.
As shown in fig. 5 and 6, a placement groove 12 for placing the syringe is formed in the center of the upper surface of the sleeve 6, mounting holes are symmetrically formed in the inner wall of the sleeve 6, fixing lugs 13 are fixedly mounted in the mounting holes, two springs 32 are arranged on one side, located in the mounting holes, of the fixing lugs 13, and protruding portions of the fixing lugs 13 are in a semicircular shape.
The second spring 32 is arranged on one side of the fixing lug 13 in the mounting hole, the syringe is inserted into the sleeve 6, the syringe is fixed to a certain extent by the hemispherical fixing lug 13, and the whole syringe overcomes the friction force of the fixing lug 13 under certain pressure to adjust the position in the sleeve 6 of the syringe.
As shown in fig. 1 and 2, the upper surface of the placing tray 1 is symmetrically provided with two fixing rods 14, two opposite sides of the two fixing rods 14 are fixed with a limiting plate 15, the surface of the limiting plate 15 is provided with a sliding groove 16, the sliding rod 5 penetrates through the sliding groove 16 and the vortex-shaped groove 4 and extends to the bottom of the rotating tray 3, and the sliding groove 16 and the vortex-shaped groove 4 are in limiting sliding connection with the sliding rod 5.
Through the spacing sliding connection of spout 16 and vortex groove 4 with slide bar 5, carry out spacingly through setting up spout 16 and vortex groove 4 to its upper end, make it remain throughout with spout 16, vortex groove 4 between sliding connection, when rotating disk 3 rotates, slide bar 5 carries out the horizontal direction motion under vortex groove 4 and the spacing condition of spout 16.
As shown in fig. 1, 5 and 7, a pushing mechanism is arranged at one end, far away from the fixed rod 14, of the upper surface of the fixed rod 14, the pushing mechanism comprises a pushing rod 20, a limiting block 17 is fixedly arranged on the sliding rod 5, the limiting block 17 is in an inverted-L shape, a limiting opening 18 is formed in the limiting block 17, one end of the pushing rod 20 penetrates through the limiting opening 18 to extend outwards and is fixedly connected with a pushing rod 19, the bottom of the pushing rod 20 is located at one end, far away from the fixed rod 14, of a limiting plate 15, a fixing piece 21 is arranged at the upper surface of the limiting plate 15, the fixing pieces 21 are located at two sides of the bottom of the fixed rod 14, and the fixing piece 21 is connected with the pushing rod 19 through a pin shaft.
Through setting up pushing mechanism, when slide bar 5 continuously moves in opposite directions, the catch bar 20 in the spacing mouth 18 of two slide bars 5 promotion uses the round pin axle to rotate at vertical direction, catch bar 19 rotates along with catch bar 20, syringe downstream in the sleeve pipe 6 is to the back of a certain degree, the piston handle is located catch bar 19 under, when two catch bars 19 and piston handle contact, two catch bars 20 mutual crisscross promote the piston handle, piston handle downstream is with stem cell injection to lesion position, through setting up two catch bars 20 mutual crisscross promotion piston handle, can make the more stable downstream of piston handle.
As shown in fig. 1 and 8, the driving gear 22 is fixedly connected to the outer side of the rotating disc 3, the driving gear 22 is in transmission connection with the adsorption mechanism, the adsorption mechanism comprises a driven gear 23, an opening which is symmetrically arranged is formed in one side, close to the driving gear 22, of the upper surface of the placing disc 1 and is in fixed-axis rotation connection with the driven gear 23 through the opening, the driving gear 22 is meshed with the driven gear 23, a threaded hole 25 is formed in the center of the driven gear 23 and is in threaded connection with the screw 24 through the threaded hole 25, an adsorption cavity 28 is arranged at the bottom end of the screw 24, a piston block 26 is movably connected with the screw 24, a negative pressure adsorption port 27 is formed in the lower surface of the placing disc 1, the negative pressure adsorption port 27 is communicated with the adsorption cavity 28, a one-way valve is arranged at the communication position of 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.
Through driving gear 22 and driven gear 23 intermeshing, driving gear 22 rotates and makes two driven gears 23 of drive rotate, be provided with opposite screw structure through two screw rods 24, piston piece 26 that two screw rods 24 upwards pulled the absorption chamber 28 bottom makes its upward movement, be provided with the check valve through absorption chamber 28 and negative pressure absorption mouth 27 intercommunication department, air suction in the negative pressure absorption mouth 27 when piston piece 26 upwards moves, form the negative pressure in its negative pressure absorption mouth 27, and make it closely laminate with skin through the rubber dish 34 of negative pressure absorption mouth 27 department, can make place dish 1 adsorbed in the skin outside, fix place dish 1 wholly.
As shown in fig. 1, the sleeve 6 and the placing tray 1 are both made of a highly transparent non-toxic material, which is polyvinyl chloride or polypropylene.
The sleeve 6 and the placing plate 1 are made of high-transparency nontoxic materials, so that the syringe and the needle can be directly penetrated through the placing plate 1 in the specific condition of using, the syringe and the needle can be conveniently used and observed, accidents are prevented, and the operation is stopped in time.
Example two
As shown in fig. 1 to 9, on the basis of the first embodiment, the difference is that the adsorption cavity 28 is replaced by a micro suction pump 29, and the specific alternative mode is that the adsorption mechanism comprises the micro suction pump 29, a connector 30 is fixedly connected to one side of the outer contour of the placement disc 1, the connector 30 is fixedly connected with the suction end of the micro suction pump 29, a connector 31 is formed on the surface of the connector 30, and a one-way valve is arranged at the position where the connector 31 is communicated with the negative pressure adsorption port 27.
By providing the micro suction pump 29, the connector 30 is fixedly connected with the suction end of the micro suction pump 29 by opening the micro suction pump 29, and the air is sucked out from the negative pressure suction port 27 by the micro suction pump 29, so that the negative pressure is formed in the negative pressure suction port 27, the placing tray 1 can be adsorbed on the outer side of the skin, and the placing tray 1 is integrally fixed.
Working principle: this stem cell leading-in system, before the use, disinfect the lesion through the iodophor, disinfect to the rubber dish 34 of placing the dish 1 lower surface simultaneously, put into sleeve pipe 6 with the syringe needle cylinder, and fix the syringe through the fixed lug 13 that sleeve pipe 6 inner wall set up, fixed lug 13 is fixed sleeve pipe 6 under the effect of spring two 32, be a high transparent nontoxic material through sleeve pipe 6 and placing dish 1 and make, be convenient for observe the syringe position through sleeve pipe 6 and placing dish 1, manual promotion syringe needle cylinder makes the syringe needle point pass holding ring 11.
The syringe needle is aligned to the lesion part, the driving gear 22 arranged outside the rotating disc 3 is rotated manually, the rotating disc 3 is rotated in the limiting groove 2 by arranging the driving gear 22, the two slide bars 5 can only move relatively or reversely in the two vortex grooves through the sliding groove 16, the sliding column 801 penetrating through the through hole of the inner wall of the placing disc 1 is fixedly connected to one side of the pushing block 8, and the sliding column 801 slides in the through hole to axially limit, so that the two slide bars 5 always ensure opposite movement or reverse movement in the two symmetrical vortex grooves 4.
When the driving gear 22 is manually rotated, the driven gear 23 meshed with the driving gear 22 can be rotated, the threaded hole 25 is formed in the center of the driven gear 23, the screw 24 is screwed through the threaded hole 25, and the driving gear 22 can be rotated against the friction force generated by the rotation of the screw 24 in the threaded hole 25 by arranging the threaded hole 25 and the screw 24, so that the rotating disc 3 cannot easily rotate and keep stable in a placed state.
When the driving gear 22 drives the two driven gears 23 to reversely rotate, the two screws 24 are provided with opposite thread structures, so that the two screws 24 move upwards in the threaded holes 25, the two screws 24 pull the piston blocks 26 at the bottoms of the adsorption cavities 28 upwards, the piston blocks 26 move upwards, a one-way valve is arranged at the communication position between the adsorption cavities 28 and the negative pressure adsorption ports 27, when the piston blocks 26 move upwards, air in the negative pressure adsorption ports 27 is sucked out, negative pressure is formed in the negative pressure adsorption ports 27, the rubber discs 34 at the negative pressure adsorption ports 27 are tightly attached to the skin, and the whole placing disc 1 is fixed and matched with an injection device.
The driving gear 22 is rotated clockwise, so that the sliding rods 5 move in the horizontal direction in the vortex-shaped groove 4, when the two sliding rods 5 move in the vortex-shaped groove 4 in opposite directions, the sliding columns 801 at the bottoms of the sliding rods 5 move in opposite directions along with the sliding rods 5 at the same time, through grooves 701 for limiting sliding of the sliding strips 7 are formed in the upper surfaces of the pushing blocks 8, the pushing blocks 8 push the sliding strips 7 to move downwards in the through grooves 701, the sleeve 6 moves downwards along with the sliding strips 7, and the whole injector in the sleeve 6 moves downwards.
When the syringe needle moves downwards to penetrate the skin of the lesion part, along with the continuous clockwise rotation of the driving gear 22, the syringe needle part moves downwards in the positioning ring 11 and penetrates the skin of the lesion part to a certain depth, the telescopic column 10 on one side of the pushing block 8 penetrates through the openings on two sides of the positioning ring 11 and fixes the syringe needle through the telescopic column 10, and the pushing block 8 pushes the telescopic column 10 to clamp and fix the syringe needle in the positioning ring 11 in a subtended manner, so that the syringe needle can be effectively prevented from shifting, the syringe needle is always aligned to the lesion part, and the injection position is ensured to be accurate.
Along with the continuous rotation of the driving gear 22, the two sliding rods 5 continue to move inwards in the vortex-shaped groove 4, the pushing blocks 8 at the bottoms of the two sliding rods 5 push the telescopic columns 10 to overcome the first 33 of the springs and move inwards, so that the 10 is gradually contained in the 10, the syringe needle is further fixed, the position of the syringe in the sleeve 6 is kept unchanged after the syringe moves downwards for a certain period, the piston handle of the syringe is positioned at the bottoms of the two pushing rods 19, the bottoms of the two pushing rods 19 are fixed under the combined action of the pushing blocks 8 and the telescopic columns 10, the pushing rods 20 in the limiting openings 18 are pushed by the opposite movement of the two sliding rods 5 to rotate in the vertical direction by taking the pin shafts as circle centers, the pushing rods 19 rotate along with the pushing rods 20, and when the two pushing rods 19 are contacted with the piston handle, the two pushing rods 20 push the piston handle in a staggered way, and the piston handle moves downwards stably to inject stem cells to the affected parts.
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, substitutions and alterations can be made therein without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (4)
1. Stem cell introduction system, including placing dish (1), its characterized in that: the positioning device is characterized in that a limit groove (2) which is completely penetrated is formed in the upper surface of the placement disc (1), a rotating disc (3) which rotates by a fixed shaft is arranged in the limit groove (2), two symmetrical vortex grooves (4) are formed in the rotating disc (3), limit sliding rods (5) are arranged in the two vortex grooves (4), and the sliding rods (5) penetrate through the vortex grooves (4) and extend inwards and are fixedly connected with a positioning mechanism;
the positioning mechanism comprises a sleeve (6) penetrating through the center of the placement disc (1), sliding strips (7) are fixedly connected to the bottom ends of the sleeve (6), pushing blocks (8) are fixedly connected to the bottom ends of the two sliding rods (5), and through grooves (701) for limiting and sliding of the sliding strips (7) are formed in the upper surface of each pushing block (8);
the utility model discloses a syringe, including pushing block (8), locating column (9) is all fixedly connected with to one side opposite to pushing block (8), locating column (9) one side is provided with telescopic column (10), locating ring (11) is located to locating slot (2) bottom two slide bar (5) central point put fixed mounting, set up the through-hole that supplies the syringe to pass on locating ring (11), set up the opening corresponding with telescopic column (10) in locating ring (11) both sides, fixed mounting lug (13) have been seted up to interior profile symmetry of locating slot (2) near pushing block (8) one side, be provided with axial motion's sliding column (801) in the through-hole, sliding column (801) run through the through-hole inwards extend and with pushing block (8) fixed connection, locating column (9) opposite side sets up and sets up the opening, telescopic column (10) are located one side in the opening and are provided with spring one (33), set up standing groove (12) of placing the syringe on sleeve (6) upper surface center, set up the mounting hole in sleeve (6) profile symmetry, fixed mounting lug (13) have, fixed mounting lug (13) are close to pushing block (8) one side, two fixed mounting lug (14) are located two fixed positions (14) are fixed on the fixed disk (14), two fixed lever (14) are fixed with limiting plate (15) on opposite one side, spout (16) have been seted up on limiting plate (15) surface, spout (16) and vortex groove (4) are run through to slide bar (5) and extend to rolling disc (3) bottom, spout (16) and vortex groove (4) all with slide bar (5) spacing sliding connection, rolling disc (3) outside fixedly connected with driving gear (22), driving gear (22) transmission is connected with adsorption mechanism, adsorption mechanism includes driven gear (23), place dish (1) upper surface and be close to driving gear (22) one side and set up the opening of symmetry and rotate with driven gear (23) fixed axle through this opening and be connected, driving gear (22) and driven gear (23) intermeshing, threaded hole (25) are seted up at driven gear (23) center and are threaded rod (24) through this threaded hole (25) spiro union, screw rod (24) bottom is provided with adsorption chamber (28), screw rod (24) swing joint has piston block (26), fixed lever (14) are kept away from on the fixed lever (14) one end.
2. The stem cell introduction system of claim 1, wherein: the pushing mechanism comprises a pushing rod (20), a limiting block (17) is fixedly arranged on the sliding rod (5), the limiting block (17) is of an inverted L shape, and a limiting opening (18) is formed in the limiting block (17).
3. The stem cell introduction system of claim 2, wherein: the utility model discloses a push rod, including fixed rod (19), locating plate (15) upper surface, fixed rod (14) bottom, push rod (20) one end runs through spacing mouth (18) outwards extension and fixed connection push rod (19), the bottom of push rod (20) is located keeping away from dead lever (14) one end on locating plate (15), fixed plate (15) upper surface is provided with stationary blade (21), stationary blade (21) are located dead lever (14) bottom both sides, stationary blade (21) are connected through the round pin axle with push rod (19).
4. The stem cell introduction system of claim 1, wherein: negative pressure adsorption port (27) have been seted up to place dish (1) lower surface, negative pressure adsorption port (27) link up with adsorption cavity (28), adsorption cavity (28) are provided with the check valve with negative pressure adsorption port (27) intercommunication department, negative pressure adsorption port (27) bottom fixedly connected with rubber dish (34).
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| CN202210703123.6A CN115192826B (en) | 2022-06-21 | 2022-06-21 | Stem cell introduction system |
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| CN202210703123.6A CN115192826B (en) | 2022-06-21 | 2022-06-21 | Stem cell introduction system |
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| CN115192826B true CN115192826B (en) | 2023-09-08 |
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| CN211214762U (en) * | 2019-11-05 | 2020-08-11 | 湖北汇智铭传生物科技股份有限公司 | Stem cell injector |
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| CN115192826A (en) | 2022-10-18 |
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