Stem cell exosome repair fluid administration device and method

Abstract

This invention relates to the field of drug delivery devices, and provides a device and method for dispensing stem cell exosome repair fluid. The device includes a housing, inside which a syringe is housed. The syringe has a piston rod and a nozzle for dispensing stem cell exosome repair fluid. A box is fixedly installed at the bottom of the housing, with a handle fixedly installed at the bottom and a perforation on one side. A first rotating shaft is rotatably mounted on the box, and a winding disc is fixedly sleeved on the first rotating shaft. The stem cell exosome repair fluid dispensing device and method provided by this solution solves the problem of difficulty in accurately controlling the piston rod's pushing force when using a syringe to dispense stem cell exosome repair fluid, which easily leads to excessive dispensing and waste of stem cell exosome repair fluid in a single application.

Description

Technical Field

[0001] This invention belongs to the field of drug delivery device technology, and particularly relates to a drug delivery device and method for stem cell exosome repair fluid. Background Technology

[0002] Stem cell exosomes are physiologically active substances secreted by human cells during physiological activities. Their main active components include proteins and microRNA-like nucleic acids. Currently, in clinical practice, stem cell exosomes are mainly used to treat various skin diseases, such as burns, scalds, and skin ulcers, to regenerate healthy skin. They can also be used for skincare, primarily to help repair damaged or aging skin, while providing comprehensive skin conditioning and effectively improving skin texture, thereby restoring the skin to a youthful and healthy state.

[0003] In existing technologies, some people use syringes as drug delivery devices. By pushing the plunger of the syringe, stem cell exosome repair fluid that needs to be applied to the skin is squeezed out. However, this repair fluid needs to be squeezed out in small amounts multiple times. It is difficult for the operator to accurately control the pushing force of each time when pushing the plunger, which can easily lead to excessive pushing of the plunger, resulting in excessive fluid output and waste of stem cell exosome repair fluid. Summary of the Invention

[0004] This invention provides a device and method for administering stem cell exosome repair fluid, aiming to solve the problem mentioned in the background art that it is difficult to accurately control the piston rod pushing force when using a syringe to push stem cell exosome repair fluid, which easily leads to excessive fluid output in a single dose and waste of stem cell exosome repair fluid.

[0005] To address the aforementioned problems, the present invention provides a stem cell exosome repair fluid delivery device, comprising: a housing containing a syringe, the syringe having a piston rod and a nipple for discharging stem cell exosome repair fluid; a box fixedly mounted at the bottom of the housing, the bottom of the box having a handle fixedly mounted thereon, and a perforation on one side of the box; a first rotating shaft rotatably mounted on the box, a winding disc fixedly sleeved on the first rotating shaft; a first pull rope disposed within the perforation, one end of the first pull rope being fixedly connected to the winding disc, and the other end of the first pull rope being fixedly mounted with a pressure plate for pushing the piston rod; two limiting blocks fixedly mounted on both sides of the housing, each limiting block having a limiting rod slidably mounted thereon, one end of each limiting rod being fixedly connected to one side of the pressure plate; a drive mechanism mounted on the box and the first rotating shaft for rotating the winding disc; and a protective mechanism mounted on the housing and the box for covering the nipple.

[0006] Preferably, the driving mechanism includes: a rotating disk fixedly sleeved on the first rotating shaft, the rotating disk having a plurality of triangular teeth fixedly installed on it; a first strip-shaped hole formed at the bottom of the housing, a pressing plate slidably installed on the inner wall of the first strip-shaped hole, and a movable plate fixedly installed on one side of the pressing plate; two sliding rods slidably installed on the movable plate, one end of each of the two sliding rods being fixedly connected to one side of the inner wall of the housing, each of the two sliding rods having a first spring slidably sleeved on it, and one end of each of the two first springs being fixedly connected to one side of the movable plate; and two first baffles respectively fixedly installed on the two sliding rods, one side of each of the two first baffles being fixedly connected to one side of the movable plate. One end of the first spring is fixedly connected; a push plate is hinged to one side of the movable plate, and the push plate is in contact with the triangular teeth; a stop block is fixedly installed on one side of the movable plate, and one side of the stop block is in contact with the push plate; a second spring is fixedly installed at the bottom of the push plate, one end of the second spring is fixedly installed with a triangular block, and one side of the triangular block is fixedly connected to one side of the movable plate; a second rotating shaft is rotatably installed on the inner wall of the box, and an intercepting plate is fixedly sleeved on the second rotating shaft, the intercepting plate is in contact with the triangular teeth, and a third spring is fixedly installed on the intercepting plate, the bottom end of the third spring being fixedly connected to the bottom inner wall of the box.

[0007] Preferably, the protective mechanism includes: a crossbar slidably mounted on the housing, the crossbar being slidably connected to the movable plate, an L-shaped plate fixedly mounted at one end of the crossbar, and a pull plate fixedly mounted at the other end of the crossbar; a fixed plate slidably mounted on the crossbar, the top of the fixed plate being fixedly connected to the bottom of the housing; a fourth spring slidably sleeved on the crossbar, the fourth spring being located between the fixed plate and the pull plate; two racks fixedly mounted on the pull plate; two third rotating shafts rotatably mounted on the bottom of the housing, each of the two third rotating shafts having a sleeve fixedly sleeved on it, each of the two sleeves having multiple teeth fixedly mounted on it, the multiple teeth being adapted to the two racks respectively; and two support rods fixedly mounted on the two sleeves respectively, each of the two support rods having a protective cover fixedly mounted at one end, the two protective covers being close to each other on their respective sides.

[0008] Preferably, each of the two protective covers has an arc-shaped opening on one side that is close to each other, and the inner wall of each of the two arc-shaped openings is in contact with the outer wall of the nipple.

[0009] Preferably, a U-shaped opening is provided on one side of the housing, and the U-shaped opening is located outside the nipple.

[0010] Preferably, two rollers are rotatably mounted on the inner wall of the perforation, and both rollers are in contact with the first pull rope.

[0011] Preferably, the stem cell exosome repair fluid delivery device further includes a shielding mechanism installed on the housing, the shielding mechanism being used to block the syringe.

[0012] Preferably, the shielding mechanism includes: two mounting blocks respectively fixedly installed on both sides of the housing, each of the two mounting blocks having a threaded groove on its top; a top plate placed on the top of the two mounting blocks, the top plate having two sliding holes, each of the two sliding holes having a bolt slidably installed thereon, the two bolts being threadedly connected to the two threaded grooves respectively.

[0013] Preferably, a stop is fixedly installed on the button, the stop being used to block the operator's fingers.

[0014] The present invention also provides a method for administering a stem cell exosome repair fluid via a drug delivery device, comprising the following steps: Step 1: Preparation. Draw the required stem cell exosome repair solution into the syringe. After drawing, place the syringe into the housing, then place the top plate on top of the housing. Next, insert the two bolts into the two sliding holes on the top plate. After insertion, rotate the two bolts to connect them with the threaded grooves on the two mounting blocks. Once connected, the top plate will prevent the syringe from detaching from the housing. Then, hold the handle with your index finger on the button plate, or you can place your middle finger on the button plate simultaneously, and press the button plate with your fingers. The button slides along the inner wall of the first slot until it can no longer move, then it is released. During the pressing process, the button simultaneously moves the moving plate along the two slide rods, compressing the two first springs. The moving plate then moves the push plate, causing it to push the triangular teeth, which in turn rotate the rotating disk at a certain angle. During this pushing process, the push plate rotates on one side of the moving plate, compressing the second spring. At this time, the interceptor plate also rotates at a certain angle due to the pressure from the triangular teeth, compressing the third spring. After the rotating disk rotates a certain angle, the interceptor plate is no longer subjected to the pressure from the triangular teeth. The compression of the triangular teeth allows the third spring to elastically push the interceptor plate back to its original angle. When the button is released, the two first springs, through their own elasticity, push the moving plate to slide in opposite directions on the two slide rods. The moving plate then causes the button to slide in opposite directions on the inner wall of the first slot until the button is reset. The moving plate also causes the push plate to move in opposite directions, separating the push plate from the triangular teeth it was in contact with. Then, under the elastic action of the second spring, the push plate can be pushed to rotate in opposite directions on one side of the moving plate, resetting the push plate and making contact with another triangular tooth. During the resetting process of the push plate, the interceptor plate moves away from the push plate. One side will hold the triangular teeth in place to prevent the friction between the push plate and the triangular teeth during the reset process from causing the rotating disk to reverse. This allows the rotating disk to stably drive the first rotating shaft to rotate on the box. The first rotating shaft will drive the winding disk to rotate at a certain angle, and the winding disk will wind up the first pull rope, causing the first pull rope to pull the pressure plate. At this time, the two limit rods fixed to the pressure plate will slide synchronously on the two limit blocks, thereby ensuring the stability of the pressure plate during the movement. By repeatedly pressing and releasing the press plate, the pressure plate can be continuously moved towards the syringe until the pressure plate contacts the piston rod of the syringe. Step two, drug administration: Each time the stem cell exosome repair fluid is squeezed out of the syringe, simply press and release the button once. This will push the piston rod a short distance, squeezing out a small amount of the stem cell exosome repair fluid from the nipple. The squeezed-out stem cell exosome repair fluid can be directly applied to the skin. Since only a small amount of stem cell exosome repair fluid is discharged from the nipple with each press and release, the amount of fluid dispensed can be controlled to avoid waste. When the user needs to leave for a short or long time, the nipple can be covered with two protective shields on the protective mechanism to prevent contamination from external pollutants.

[0015] Compared with related technologies, the stem cell exosome repair fluid delivery device and method provided by the present invention have the following beneficial effects: Compared with existing technologies, the stem cell exosome repair fluid delivery device and method provided in this solution, through the use of a drive mechanism, ensures that each time the stem cell exosome repair fluid is squeezed from the syringe, the piston rod can only be pushed a certain length. The push length is stable, allowing the piston rod to squeeze a small amount of stem cell exosome repair fluid from the nipple, thus controlling the amount of fluid dispensed and making the drug delivery more convenient. Compared with the method of directly pushing the piston rod, it can effectively avoid the problem of excessive fluid dispensing. It effectively solves the problem of difficulty in accurately controlling the piston rod pushing force when using a syringe to push stem cell exosome repair fluid, which easily leads to excessive dispensing and waste of stem cell exosome repair fluid. In addition, through the use of a protective mechanism, the exposed nipple can be shielded and protected when the user needs to leave for a short or long time, to prevent dust or other contaminants from contaminating the nipple and causing skin contamination during subsequent use, thus ensuring the hygiene of the device during use. Attached Figure Description

[0016] Figure 1 This is a three-dimensional structural schematic diagram of a stem cell exosome repair fluid delivery device provided by the present invention; Figure 2 This is a bottom-view three-dimensional structural diagram of a stem cell exosome repair fluid delivery device provided by the present invention; Figure 3 This is a schematic diagram of the main cross-sectional structure of a stem cell exosome repair fluid delivery device provided by the present invention; Figure 4 for Figure 2 An enlarged structural diagram of part A shown in the figure; Figure 5 for Figure 4 An enlarged structural diagram of part B shown in the figure; Figure 6 for Figure 3An enlarged structural diagram of section C shown in the figure; Figure 7 for Figure 3 An enlarged structural diagram of part D shown in the figure; Figure 8 for Figure 7 An enlarged structural diagram of part E shown in the figure; Figure 9 for Figure 7 An enlarged structural diagram of part F shown in the figure; Figure 10 for Figure 7 An enlarged structural diagram of part G shown in the figure; Figure 11 This is a schematic diagram of the assembly structure of the mounting block and bolts in this invention; Figure 12 This is a three-dimensional structural diagram of the protective cover in this invention.

[0017] Reference numerals: 1. Shell; 2. Syringe; 3. Piston rod; 4. Nipple; 5. Box; 6. Handle; 7. First rotating shaft; 8. Winding disc; 9. Perforation; 10. First pull rope; 11. Pressure plate; 12. Limiting block; 13. Limiting rod; 14. Rotating disc; 15. Triangular tooth; 16. First slotted hole; 17. Press plate; 18. Moving plate; 19. Slide rod; 20. First spring; 21. First baffle; 22. Push plate; 23. Stop block; 24. Second spring; 25. Triangular block; 26. Second rotating shaft; 27. Intercepting plate; 28. Third spring; 29. ​​Crossbar; 30. L-shaped plate; 31. Fixing plate; 32. Fourth spring; 33. Pull plate; 34. Rack; 35. Third rotating shaft; 36. 37. Sleeve; 38. Tooth; 39. Support rod; 40. Protective cover; 41. U-shaped opening; 42. Roller; 43. First slot; 44. Fifth spring; 45. Vertical rod; 46. Connecting plate; 47. Support block; 48. Second pull rope; 49. First pull ring; 50. Fixed rod; 51. Second slot; 52. Rectangular plate; 53. Pull rod; 54. Sixth spring; 55. Limiting plate; 56. Second locking block; 57. Second strip hole; 58. Actuating plate; 59. Round rod; 60. Trapezoidal block; 61. Rotating plate; 62. Second pull ring; 63. Stop; 64. Groove; 65. Reinforcing rod; 66. Reinforcing block; 67. Mounting block; 68. Top plate; 69. Bolt; 70. First locking block; 61. Arc-shaped opening. Detailed Implementation

[0018] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0019] This invention provides a stem cell exosome repair fluid delivery device, such as... Figure 1-12 As shown, the stem cell exosome repair fluid delivery device includes: a housing 1, inside which a syringe 2 is disposed, the syringe 2 having a piston rod 3 and a nipple 4 for discharging stem cell exosome repair fluid; a box 5 fixedly installed at the bottom of the housing 1, the bottom of the box 5 having a handle 6 fixedly installed, and a perforation 9 on one side of the box 5; a first rotating shaft 7 rotatably mounted on the box 5, on which a winding disc 8 is fixedly sleeved; and a first pull rope 10 disposed within the perforation 9. One end of the first pull rope 10 is fixedly connected to the winding reel 8, and the other end of the first pull rope 10 is fixedly installed with a pressure plate 11 for pushing the piston rod 3; two limiting blocks 12 are respectively fixedly installed on both sides of the housing 1, and limiting rods 13 are slidably installed on both limiting blocks 12, and one end of each limiting rod 13 is fixedly connected to one side of the pressure plate 11; a drive mechanism for rotating the winding reel 8 is assembled on the housing 5 and the first rotating shaft 7; and a protective mechanism for covering the nipple 4 is installed on the housing 1 and the housing 5.

[0020] In this embodiment, before use, the required stem cell exosome repair fluid is drawn into the syringe 2. After drawing, the syringe 2 is placed inside the housing 1, and then the syringe 2 is blocked by a shielding mechanism to prevent it from detaching from the housing 1 due to shaking. Then, the handle 6 is held, and the hand holding the handle 6 simultaneously presses the button 17 on the drive mechanism. Each press causes the drive mechanism to rotate the winding disc 8 by a certain angle, which in turn winds the first pull rope 10, pulling the pressure plate 11. At this time, the two limiting rods 13 fixed to the pressure plate 11 slide synchronously on the two limiting blocks 12, ensuring the stability of the pressure plate 11 during movement and preventing it from tilting. By repeatedly pressing and releasing the button 17, the pressure plate 11 moves continuously towards the syringe 2 until it contacts the piston rod 3 of the syringe 2. Figures 1-3As shown, after contact, each subsequent pressing and releasing of the button 17 will push the piston rod 3 a certain distance, causing the piston rod 3 to squeeze a small amount of stem cell exosome repair fluid from the syringe 2 out of the nipple 4. The squeezed stem cell exosome repair fluid can be directly applied to the skin for use. Since each pressing and releasing of the button 17 only allows a small amount of stem cell exosome repair fluid to be discharged from the nipple 4, the amount of fluid discharged can be controlled, making drug administration more convenient. Compared with directly pushing the piston rod, it can effectively avoid the problem of excessive fluid discharge, avoid the waste of stem cell exosome repair fluid, and has a better effect. When the user needs to leave for a short or long time, in order to prevent the nipple 4 from being contaminated by external pollutants, the two protective covers 39 on the protective mechanism can be used to shield and protect the nipple 4, so as to prevent dust or other pollutants from contaminating the nipple 4 and causing skin contamination during subsequent use.

[0021] In a further preferred embodiment of the present invention, the driving mechanism includes: a rotating disk 14 fixedly sleeved on the first rotating shaft 7, wherein a plurality of triangular teeth 15 are fixedly installed on the rotating disk 14; a first strip-shaped hole 16 opened at the bottom of the housing 5, wherein a pressing plate 17 is slidably installed on the inner wall of the first strip-shaped hole 16, and a movable plate 18 is fixedly installed on one side of the pressing plate 17; two sliding rods 19 slidably installed on the movable plate 18, one end of each of the two sliding rods 19 being fixedly connected to one side of the inner wall of the housing 5, and a first spring 20 slidably sleeved on each of the two sliding rods 19, one end of each of the two first springs 20 being fixedly connected to one side of the movable plate 18; and two first baffles 21 respectively fixedly installed on the two sliding rods 19, one side of each of the two first baffles being respectively connected to two... One end of the first spring 20 is fixedly connected; a push plate 22 is hinged to one side of the movable plate 18, and the push plate 22 is in contact with the triangular tooth 15; a stop block 23 is fixedly installed on one side of the movable plate 18, and one side of the stop block 23 is in contact with the push plate 22; a second spring 24 is fixedly installed at the bottom of the push plate 22, and a triangular block 25 is fixedly installed at one end of the second spring 24, and one side of the triangular block 25 is fixedly connected to one side of the movable plate 18; a second rotating shaft 26 is rotatably installed on the inner wall of the box 5, and an intercepting plate 27 is fixedly sleeved on the second rotating shaft 26, the intercepting plate 27 is in contact with the triangular tooth 15, and a third spring 28 is fixedly installed on the intercepting plate 27, and the bottom end of the third spring 28 is fixedly connected to the bottom inner wall of the box 5.

[0022] In this embodiment, when using the drive mechanism, hold the handle 6 with your hand, placing your index finger on the button plate 17, or simultaneously placing your middle finger on the button plate 17. Then, press the button plate 17 with your fingers, causing it to slide along the inner wall of the first strip hole 16 until it can no longer move. Release the button plate 17. During the pressing process, the button plate 17 will simultaneously drive the moving plate 18 to slide on the two slide rods 19 and compress the two first springs 20. The moving plate 18 will drive the push plate 22 to move, causing the push plate 22 to drive the rotating disk 14 to rotate at a certain angle by pushing the triangular tooth 15. During the pushing process, the push plate 22 will rotate on one side of the moving plate 18 and compress the second... When spring 24 is compressed, the interceptor plate 27 will also rotate at a certain angle due to the pressure from the triangular teeth 15, compressing the third spring 28. After the rotating disk 14 rotates at a certain angle, the interceptor plate 27 will no longer be compressed by the triangular teeth 15, allowing the third spring 28 to push the interceptor plate 27 back to its original angle through elasticity. When the button 17 is released, the two first springs 20 will push the moving plate 18 to slide in the opposite direction on the two slide rods 19 through their own elasticity. The moving plate 18 will drive the button 17 to slide in the opposite direction on the inner wall of the first strip hole 16 until the button 17 is reset. The moving plate 18 will also drive the push plate 22 to move in the opposite direction, so that the push plate 22 contacts the triangular teeth 15 at this time. 5. After separation, under the elastic action of the second spring 24, the push plate 22 can be pushed to rotate in the opposite direction on one side of the moving plate 18, so that the push plate 22 resets and contacts another triangular tooth 15. During the reset process of the push plate 22, the side of the intercepting plate 27 away from the push plate 22 will abut the triangular tooth 15 to prevent the friction between the push plate 22 and the triangular tooth 15 during the reset process from causing the rotating disk 14 to reverse, so that the rotating disk 14 can stably drive the first rotating shaft 7 to rotate on the housing 5. The first rotating shaft 7 will drive the winding disk 8 to rotate at a certain angle, and the winding disk 8 will wind the first pull rope 10, so that the first pull rope 10 pulls the pressure plate 11, so that the pressure plate 11 moves towards the housing 1. At this time, it is in contact with the pressure plate. The two fixed limiting rods 13 will slide synchronously on the two limiting blocks 12 to ensure the stability of the pressure plate 11 during movement and prevent tilting during movement. By repeatedly pressing and releasing the button 17, the pressure plate 11 can move continuously towards the syringe 2, so that the pressure plate 11 can contact the piston rod 3 of the syringe 2. After contact, each subsequent pressing and releasing operation of the button 17 will push the piston rod 3 a certain length, so that the piston rod 3 squeezes a small amount of stem cell exosome repair fluid from the nipple 4 in the syringe 2, making drug administration more convenient and effectively preventing waste of stem cell exosome repair fluid due to excessive fluid output.

[0023] In a further preferred embodiment of the present invention, the protective mechanism includes: a crossbar 29 slidably mounted on the housing 5, the crossbar 29 being slidably connected to the movable plate 18, an L-shaped plate 30 fixedly mounted at one end of the crossbar 29, and a pull plate 33 fixedly mounted at the other end of the crossbar 29; a fixed plate 31 slidably mounted on the crossbar 29, the top of the fixed plate 31 being fixedly connected to the bottom of the housing 1; and a fourth spring 32 slidably sleeved on the crossbar 29, the fourth spring 32 being located between the fixed plate 31 and the pull plate. Between 33; two racks 34 fixedly installed on the pull plate 33; two third rotating shafts 35 rotatably installed at the bottom of the housing 1, each of the two third rotating shafts 35 being fixedly fitted with a sleeve 36, each of the two sleeves 36 being fixedly installed with a plurality of teeth 37, the plurality of teeth 37 being adapted to the two racks 34 respectively; two support rods 38 respectively fixedly installed on the two sleeves 36, each of the two support rods 38 being fixedly installed with a protective cover 39 at one end, the two protective covers 39 being close to each other on the side that is in contact with each other.

[0024] In this embodiment, when the button 17 is pressed for the first time, the movable plate 18 fixed to the button 17 will push the L-shaped plate 30 to move. When the button 17 cannot slide in the first strip hole 16, the L-shaped plate 30 will be locked. During the movement of the L-shaped plate 30, it will drive the crossbar 29 to slide on the housing 5 and the fixed plate 31. The crossbar 29 will drive the pull plate 33 to move and compress the fourth spring 32. The pull plate 33 will drive the two racks 34 to move. The two racks 34 will move through multiple teeth 37. Rotating the two sleeves 36 in opposite directions causes the two support rods 38 to rotate in opposite directions, which in turn causes the two protective covers 39 to open away from each other. This prevents the nipple 4 from being obstructed by the two protective covers 39 during drug administration. Since the L-shaped plate 30 is locked by the locking mechanism when it moves to the corresponding position, releasing the button 17 and causing the moving plate 18 to move in the opposite direction causes the moving plate 18 to slide against the crossbar 29. When a short or long period of absence is required, to prevent nipple 4 from being contaminated by external pollutants, two protective covers 39 are needed to shield and protect nipple 4. When shielding, the locking of the L-shaped plate 30 must be released. After release, the fourth spring 32 will use its own elasticity to push the pull plate 33 to move in the opposite direction. The pull plate 33 will cause the crossbar 29 to slide on the housing 5, the fixed plate 31, and the moving plate 18. The crossbar 29 will then cause the L-shaped plate 30 to move in the opposite direction, so that the L-shaped plate 30 re-contacts one side of the moving plate 18. 33 will also drive the two racks 34 to move in opposite directions. The two racks 34 will drive the two sleeves 36 to rotate in opposite directions through multiple teeth 37. The two sleeves 36 will drive the two support rods 38 to flip in opposite directions. The two support rods 38 will drive the two protective covers 39 to move towards each other until the sides of the two protective covers 39 that are close to each other are in contact with each other, so that the two protective covers 39 can cover and protect the nipple 4 to prevent dust or other contaminants from contaminating the nipple 4 and causing skin contamination during subsequent use.

[0025] In a further preferred embodiment of the present invention, each of the two protective covers 39 has an arc-shaped opening 70 on one side that is close to each other, and the inner wall of each of the two arc-shaped openings 70 is in contact with the outer wall of the nipple 4.

[0026] In this embodiment, by using two arc-shaped openings 70, when the two protective covers 39 are attached to each other, the two arc-shaped openings 70 can be attached to the surface of the nipple 4, reducing the existence of gaps, and thus the two protective covers 39 can effectively shield and protect the nipple 4.

[0027] In a further preferred embodiment of the present invention, a U-shaped opening 40 is provided on one side of the housing 1, and the U-shaped opening 40 is located outside the nipple 4.

[0028] In this embodiment, the use of the U-shaped opening 40 allows personnel to easily place the syringe 2 into the housing 1, so that the nipple 4 on the syringe 2 can protrude from one side of the housing 1.

[0029] In a further preferred embodiment of the present invention, two rollers 41 are rotatably mounted on the inner wall of the perforation 9, and both rollers 41 are in contact with the first pull rope 10.

[0030] In this embodiment, the use of two rollers 41 can protect the first pull rope 10 passing through the perforation 9 and reduce the coefficient of friction between the first pull rope 10 and the perforation 9.

[0031] In a further preferred embodiment of the present invention, the stem cell exosome repair fluid delivery device further includes a shielding mechanism installed on the housing 1, the shielding mechanism being used to block the syringe 2.

[0032] In this embodiment, by using a shielding mechanism, the syringe 2 can be confined within the housing 1 to prevent the syringe 2 from detaching from the housing 1 due to tilting or shaking.

[0033] In a further preferred embodiment of the present invention, the shielding mechanism includes: two mounting blocks 66 respectively fixedly installed on both sides of the housing 1, and the top of each of the two mounting blocks 66 is provided with a threaded groove; a top plate 67 disposed on the top of the two mounting blocks 66, the top plate 67 having two sliding holes, and bolts 68 slidably installed on each of the two sliding holes, the two bolts 68 being threadedly connected to the two threaded grooves respectively.

[0034] In this embodiment, when using the shielding mechanism, the syringe 2 containing stem cell exosome repair fluid needs to be placed into the housing 1 first. Then, the top plate 67 is placed on top of the housing 1. Next, two bolts 68 are inserted into the two sliding holes of the top plate 67. After insertion, the two bolts 68 are rotated so that the two bolts 68 are threadedly connected to the threaded grooves on the two mounting blocks 66. After the connection is completed, the top plate 67 can block the syringe 2 to prevent the syringe 2 from falling out of the housing 1 due to tilting or shaking.

[0035] In a further preferred embodiment of the present invention, a baffle 62 is fixedly installed on the button plate 17, and the baffle 62 is used to block the operator's fingers.

[0036] In this embodiment, the use of the baffle 62 allows the device to be hung on the operator's fingers when the operator releases the handle 6, reducing the risk of falling. In addition, it also makes it convenient for people to hang the drug delivery device on the hook so that the device can be hung to drain after cleaning and disinfection.

[0037] To further improve the performance of this device, in addition to the above-mentioned solutions, this solution also includes the following embodiments: In another embodiment of the present invention, the housing 1, the box 5, and the L-shaped plate 30 are all equipped with the same locking mechanism. The locking mechanism is used to lock the L-shaped plate 30 and includes: a first slot 42 formed on the L-shaped plate 30; a fifth spring 43 fixedly installed at the bottom of the housing 1, a connecting plate 45 fixedly installed at the bottom of the fifth spring 43, a vertical rod 44 slidably installed on the connecting plate 45, and the top end of the vertical rod 44 fixedly connected to the bottom of the housing 1; a first locking block 69 fixedly installed at the bottom of the connecting plate 45, the first locking block 69 being adapted to the first slot 42; a support block 46 fixedly installed at the bottom of the housing 1, the support block 46 having a sliding hole, a second pull rope 47 slidably installed on the inner wall of the sliding hole, one end of the second pull rope 47 being fixedly connected to the top of the connecting plate 45; a limiting hole formed on the box 5, the inner wall of the limiting hole being slidably connected to the second pull rope 47; and a first pull ring 48 fixedly installed on the second pull rope 47.

[0038] In this embodiment, when the button 17 is pressed for the first time, the movable plate 18 fixed to the button 17 will push the L-shaped plate 30 to move. At this time, the L-shaped plate 30 will slide against the bottom of the first locking block 69. When the button 17 cannot slide in the first slot 16, the L-shaped plate 30 will move to the corresponding position, so that the first slot 42 on the L-shaped plate 30 aligns with the first locking block 69. At this time, the fifth spring 43, which is in a compressed state, will push the connecting plate 45 to slide on the vertical rod 44. The connecting plate 45 will then... The first locking block 69 moves downward until it is inserted into the first locking slot 42, at which point the position of the L-shaped plate 30 is locked. As the connecting plate 45 slides on the vertical rod 44, it simultaneously pulls the second pull rope 47 to slide on the sliding hole and the limiting hole. The second pull rope 47 pulls the first pull ring 48. When it is necessary to use the two protective covers 39 on the protective mechanism to cover and protect the nipple 4, the first pull ring 48 is pulled outward by hand, causing the first pull ring 48 to pull the second pull ring 48. Rope 47 slides in the opposite direction on the sliding hole and the limiting hole. The second pull rope 47 will drive the connecting plate 45 to slide in the opposite direction on the vertical rod 44 and compress the fifth spring 43. The connecting plate 45 will drive the first locking block 69 to move upward, so that the first locking block 69 disengages from the first locking groove 42. At this time, the fourth spring 32 on the protective mechanism will push the pull plate 33 to move in the opposite direction through its own elasticity. The pull plate 33 will drive the horizontal rod 29 to slide on the box 5, the fixed plate 31 and the moving plate 18. The horizontal rod 29 will drive the L-shaped plate 30 to move in the opposite direction. The movement causes the L-shaped plate 30 to re-contact one side of the moving plate 18. The pull plate 33 also drives the two racks 34 to move in the opposite direction. The two racks 34 drive the two sleeves 36 to rotate in the opposite direction through multiple teeth 37. The two sleeves 36 drive the two support rods 38 to flip in the opposite direction. The two support rods 38 drive the two protective covers 39 to move towards each other until the sides of the two protective covers 39 that are close to each other fit together, so that the two protective covers 39 can cover and protect the nipple 4. The operation is relatively simple.

[0039] In another embodiment of the present invention, the housing 5, the movable plate 18, and the interceptor plate 27 are all equipped with the same loosening mechanism for moving the push plate 22 and the interceptor plate 27. The loosening mechanism includes: a fixed rod 49 slidably mounted on the housing 5, one end of the fixed rod 49 being fixedly connected to the movable plate 18, and a second slot 50 provided on the fixed rod 49; a rectangular plate 51 fixedly mounted on the inner wall of one side of the housing 5, a pull rod 52 slidably mounted on the rectangular plate 51, and a sixth spring 53 slidably sleeved on the pull rod 52; and a limiting plate 54 fixedly mounted on the top of the pull rod 52, with a second slot fixedly mounted on the top of the limiting plate 54. Block 55, the second card block 55 is adapted to the second card slot 50; a second strip hole 56 is opened on one side of the box body 5, and a toggle plate 57 is slidably installed on the inner wall of the second strip hole 56, the top of the toggle plate 57 is fixedly connected to the bottom end of the pull rod 52; a round rod 58 is fixedly installed on the moving plate 18, and a trapezoidal block 59 is fixedly installed at one end of the round rod 58, and a first inclined surface is provided on one side of the trapezoidal block 59; a rotating plate 60 is fixedly installed on the intercepting plate 27, and a second inclined surface is provided on the rotating plate 60, the second inclined surface being located on one side of the first inclined surface; a second pull ring 61 is fixedly installed on the fixed rod 49.

[0040] In this embodiment, when it is necessary to move the pressure plate 11 away from the housing 1, the second pull ring 61 is pulled outward. The second pull ring 61 will cause the fixing rod 49 to slide on the housing 5 and stretch the two first springs 20. The fixing rod 49 will cause the moving plate 18 to move. The moving plate 18 will cause the push plate 22 to move away from the triangular tooth 15. The moving plate 18 will cause the round rod 58 to move. The round rod 58 will cause the trapezoidal block 59 to move, so that the first inclined surface of the trapezoidal block 59 pushes the second inclined surface of the rotating plate 60. During the pushing process, the rotating plate 60 can drive the intercepting plate 2. 7. The rotation of the second shaft 26 causes the interceptor plate 27 to disengage from the triangular tooth 15 and compress the third spring 28. After the fixing rod 49 moves to the corresponding position, the compressed sixth spring 53 will push the limiting plate 54 upward through its own elasticity. The limiting plate 54 will drive the pull rod 52, the actuating plate 57, and the second locking block 55 upward, so that the second locking block 55 is inserted into the second locking slot 50 on the fixing rod 49. At this time, the drive mechanism cannot be used. Then the operator can pull the pressure plate 11 away from the housing 1 so that the pressure plate 11 can return to its previous position. When the pressure plate 11 is pulled, the first pull rope 10 fixed to it moves outward from the housing 5. The first pull rope 10 drives the winding disc 8, the first rotating shaft 7, the rotating disc 14, and multiple triangular teeth 15 to rotate. When the pressure plate 11 returns to its previous position, the actuating plate 57 is pressed down, causing the actuating plate 57 to slide on the inner wall of the second strip hole 56. The actuating plate 57 drives the pull rod 52 to slide on the rectangular plate 51. The pull rod 52 drives the limiting plate 54 to move down and compress the sixth spring 53. The limiting plate 54 drives the second locking block 55 to move down. The second locking block 55 is disengaged from the second locking slot 50 on the fixed rod 49. After disengagement, the two first springs 20 will pull the moving plate 18, the fixed rod 49, and the second pull ring 61 back to their original positions. The moving plate 18 will drive the push plate 22 to approach the triangular tooth 15 until it contacts the triangular tooth 15. The moving plate 18 will drive the round rod 58 to move in the opposite direction. The round rod 58 will drive the trapezoidal block 59 away from the rotating plate 60. At this time, under the elastic push of the third spring 28, the intercepting plate 27 and the rotating plate 60 can be pushed back to their original angle, thereby restoring the use of the drive mechanism.

[0041] In another embodiment of the present invention, a groove 63 is provided at the bottom of the housing 1, a reinforcing rod 64 is fixedly installed on the inner wall of the groove 63, a reinforcing block 65 for supporting the pull plate 33 is slidably installed on the reinforcing rod 64, the bottom of the reinforcing block 65 is fixedly connected to the top of the pull plate 33, and the reinforcing block 65 is slidably connected to the inner wall of the groove 63.

[0042] In this embodiment, the pull plate 33 can maintain good stability and provide a certain degree of support during use by using the groove 63, the reinforcing rod 64 and the reinforcing block 65 together. When the pull plate 33 moves, the reinforcing block 65 fixed to it will slide horizontally on the reinforcing rod 64 in sync.

[0043] The present invention also provides a method for administering a stem cell exosome repair fluid via a drug delivery device, comprising the following steps: Step 1: Preparation. Draw the required stem cell exosome repair solution into syringe 2. After drawing, place syringe 2 into housing 1, then place top plate 67 on top of housing 1. Insert two bolts 68 into the two sliding holes of top plate 67. After insertion, rotate the two bolts 68 to connect them with the threaded grooves on the two mounting blocks 66. After connection, top plate 67 can block syringe 2 to prevent it from detaching from housing 1. Then, hold handle 6 with your index finger on button 17, or your middle finger can be placed on button 17 at the same time. Press button 17 with your fingers to make button 17 move in the first strip. The inner wall of hole 16 slides until the pressing plate 17 can no longer move. Then, the pressing plate 17 is released. During the pressing process, the pressing plate 17 will simultaneously drive the moving plate 18 to slide on the two sliding rods 19 and compress the two first springs 20. The moving plate 18 will drive the push plate 22 to move, so that the push plate 22 will drive the rotating disk 14 to rotate at a certain angle by pushing the triangular teeth 15. During the pushing process, the push plate 22 will rotate on one side of the moving plate 18 and compress the second spring 24. At this time, the intercepting plate 27 will also rotate at a certain angle due to the squeezing of the triangular teeth 15 and compress the third spring 28. After the rotating disk 14 rotates at a certain angle, the intercepting plate 27 will no longer be squeezed by the triangular teeth 15. The compression causes the third spring 28 to elastically push the interceptor plate 27 back to its original angle. When the button plate 17 is released, the two first springs 20 will use their own elasticity to push the moving plate 18 to slide in the opposite direction on the two slide rods 19. The moving plate 18 will drive the button plate 17 to slide in the opposite direction on the inner wall of the first strip hole 16 until the button plate 17 is reset. The moving plate 18 will also drive the push plate 22 to move in the opposite direction, so that the push plate 22 separates from the triangular tooth 15 it is in contact with at this time. Then, under the elastic action of the second spring 24, the push plate 22 can be pushed to rotate in the opposite direction on one side of the moving plate 18, so that the push plate 22 is reset and contacts another triangular tooth 15. During the reset process of the push plate 22, the interceptor plate 27 moves away from the push plate 29. One side of the push plate 22 will abut against the triangular tooth 15 to prevent the friction between the push plate 22 and the triangular tooth 15 during the reset process from causing the rotating disk 14 to reverse. This allows the rotating disk 14 to stably drive the first rotating shaft 7 to rotate on the housing 5. The first rotating shaft 7 will drive the winding disk 8 to rotate at a certain angle. The winding disk 8 will wind up the first pull rope 10, causing the first pull rope 10 to pull the pressure plate 11. At this time, the two limiting rods 13 fixed to the pressure plate 11 will slide synchronously on the two limiting blocks 12, thereby ensuring the stability of the pressure plate 11 during the movement. By repeatedly pressing and releasing the push plate 17, the pressure plate 11 can be continuously moved towards the syringe 2 until the pressure plate 11 contacts the piston rod 3 of the syringe 2. Step two, drug administration: Each time the stem cell exosome repair fluid in syringe 2 is squeezed out, a single press and release operation of the button 17 is required. This will push the piston rod 3 a certain distance, causing the piston rod 3 to squeeze a small amount of stem cell exosome repair fluid from syringe 2 out of nipple 4. The squeezed stem cell exosome repair fluid can be directly applied to the skin. Since the single press and release operation of the button 17 only allows a small amount of stem cell exosome repair fluid to be discharged from nipple 4, the amount of fluid discharged can be controlled to avoid waste. When the user needs to leave for a short or long time, the nipple 4 can be covered by two protective covers 39 on the protective mechanism to prevent contamination of the nipple 4 by external pollutants.

[0044] In summary, compared with related technologies, this invention, through the use of a driving mechanism, ensures that each time the stem cell exosome repair fluid is squeezed out of the syringe 2, the piston rod 3 can only be pushed for a certain length. The pushing length is stable, allowing the piston rod 3 to squeeze a small amount of stem cell exosome repair fluid from the nipple 4, thus controlling the amount of fluid dispensed and making drug administration more convenient. Compared with the method of directly pushing the piston rod, it can effectively avoid the problem of excessive fluid dispensing. It effectively solves the problem of difficulty in accurately controlling the pushing force of the piston rod when using a syringe to push stem cell exosome repair fluid, which easily leads to excessive fluid dispensing and waste of stem cell exosome repair fluid. In addition, through the use of a protective mechanism, the exposed nipple 4 can be shielded and protected when the user needs to leave for a short or long time, to prevent dust or other contaminants from contaminating the nipple 4 and causing skin contamination during subsequent use, thus ensuring the hygiene of the device during use.

[0045] It should be understood, in the several embodiments provided in this application, that the disclosed apparatus may be implemented in other ways.

[0046] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit the scope of protection of the invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Based on these embodiments, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still combine, add, delete, or otherwise adjust the features of the various embodiments of the present invention according to the circumstances without conflict or creative effort, thereby obtaining different technical solutions that do not fundamentally depart from the concept of the present invention. These technical solutions also fall within the scope of protection of the present invention.

Claims

1. A stem cell exosome repair fluid delivery device, characterized in that, include: A housing, the inside of which is housed a syringe, the syringe having a piston rod and a nipple for discharging stem cell exosome repair fluid; A box is fixedly installed at the bottom of the housing, and a handle is fixedly installed at the bottom of the box. A through hole is provided on one side of the box. A first rotating shaft mounted on the housing is rotated, and a winding disc is fixedly sleeved on the first rotating shaft; A first pull rope is disposed in the perforation, one end of which is fixedly connected to the winding reel, and the other end of which is fixedly mounted with a pressure plate for pushing the piston rod. Two limiting blocks are fixedly installed on both sides of the housing, and a limiting rod is slidably installed on each of the two limiting blocks. One end of each of the two limiting rods is fixedly connected to one side of the pressure plate. A drive mechanism for rotating the winding disc, mounted on the housing and the first rotating shaft; A protective mechanism for covering the nipple, installed on the housing and the box.

2. The stem cell exosome repair fluid delivery device as described in claim 1, characterized in that, The drive mechanism includes: A rotating disk is fixedly sleeved on the first rotating shaft, and multiple triangular teeth are fixedly installed on the rotating disk; A first strip-shaped hole is formed at the bottom of the box body, and a push plate is slidably installed on the inner wall of the first strip-shaped hole. A movable plate is fixedly installed on one side of the push plate. Two sliding rods are slidably mounted on the movable plate. One end of each sliding rod is fixedly connected to the inner wall of one side of the box. A first spring is slidably sleeved on each sliding rod. One end of each first spring is fixedly connected to one side of the movable plate. Two first baffles are fixedly installed on the two slide rods respectively, and one side of each of the two first baffles is fixedly connected to one end of each of the two first springs; A push plate is hinged to one side of the movable plate, and the push plate is in contact with the triangular teeth; A stop block is fixedly installed on one side of the movable plate, and one side of the stop block is in contact with the push plate; A second spring is fixedly installed at the bottom of the push plate, and a triangular block is fixedly installed at one end of the second spring. One side of the triangular block is fixedly connected to one side of the moving plate. A second rotating shaft is rotatably mounted on the inner wall of the box. An intercepting plate is fixedly sleeved on the second rotating shaft. The intercepting plate is in contact with the triangular teeth. A third spring is fixedly mounted on the intercepting plate. The bottom end of the third spring is fixedly connected to the bottom inner wall of the box.

3. The stem cell exosome repair fluid delivery device as described in claim 2, characterized in that, The protective mechanism includes: A crossbar is slidably mounted on the box body, the crossbar is slidably connected to the movable plate, one end of the crossbar is fixedly mounted with an L-shaped plate, and the other end of the crossbar is fixedly mounted with a pull plate; A fixed plate is slidably mounted on the crossbar, and the top of the fixed plate is fixedly connected to the bottom of the housing; A fourth spring is slidably sleeved on the crossbar, and the fourth spring is located between the fixed plate and the pull plate; Two racks are fixedly installed on the pull plate; Two third rotating shafts are rotatably mounted at the bottom of the housing. Each of the two third rotating shafts is fixedly fitted with a sleeve. Each of the two sleeves is fixedly fitted with a plurality of teeth, which are respectively adapted to the two racks. Two support rods are fixedly installed on the two sleeves respectively, and a protective cover is fixedly installed on one end of each of the two support rods. The two protective covers are fitted together on the side closest to each other.

4. The stem cell exosome repair fluid delivery device as described in claim 1, characterized in that, Both of the protective covers have arc-shaped openings on their sides that are close to each other, and the inner walls of both arc-shaped openings are in contact with the outer wall of the nipple.

5. The stem cell exosome repair fluid delivery device as described in claim 1, characterized in that, A U-shaped opening is provided on one side of the shell, and the U-shaped opening is located outside the nipple.

6. The stem cell exosome repair fluid delivery device as described in claim 1, characterized in that, Two rollers are rotatably mounted on the inner wall of the perforation, and both rollers are in contact with the first pull rope.

7. The stem cell exosome repair fluid delivery device as described in claim 1, characterized in that, The stem cell exosome repair fluid delivery device also includes a shielding mechanism installed on the housing, which is used to block the syringe.

8. The stem cell exosome repair fluid delivery device as described in claim 7, characterized in that, The blocking mechanism includes: Two mounting blocks are fixedly installed on both sides of the housing, and threaded grooves are provided on the top of both mounting blocks; A top plate is placed on top of the two mounting blocks, and two sliding holes are provided on the top plate. Bolts are slidably installed in the two sliding holes, and the two bolts are threadedly connected to the two threaded grooves respectively.

9. The stem cell exosome repair fluid delivery device as described in claim 2, characterized in that, A stop is fixedly installed on the button, which is used to block the operator's fingers.

10. The method of administration of the stem cell exosome repair fluid vial according to any one of claims 1-9, characterized in that, Includes the following steps: Step 1: Preparation. Draw the required stem cell exosome repair solution into the syringe. After drawing, place the syringe into the housing, then place the top plate on top of the housing. Next, insert the two bolts into the two sliding holes on the top plate. After insertion, rotate the two bolts to connect them with the threaded grooves on the two mounting blocks. Once connected, the top plate will prevent the syringe from detaching from the housing. Then, hold the handle with your index finger on the button plate, or you can place your middle finger on the button plate simultaneously, and press the button plate with your fingers. The button slides along the inner wall of the first slot until it can no longer move, then it is released. During the pressing process, the button simultaneously moves the moving plate along the two slide rods, compressing the two first springs. The moving plate then moves the push plate, causing it to push the triangular teeth, which in turn rotate the rotating disk at a certain angle. During this pushing process, the push plate rotates on one side of the moving plate, compressing the second spring. At this time, the interceptor plate also rotates at a certain angle due to the pressure from the triangular teeth, compressing the third spring. After the rotating disk rotates a certain angle, the interceptor plate is no longer subjected to the pressure from the triangular teeth. The compression of the triangular teeth allows the third spring to elastically push the interceptor plate back to its original angle. When the button is released, the two first springs, through their own elasticity, push the moving plate to slide in opposite directions on the two slide rods. The moving plate then causes the button to slide in opposite directions on the inner wall of the first slot until the button is reset. The moving plate also causes the push plate to move in opposite directions, separating the push plate from the triangular teeth it was in contact with. Then, under the elastic action of the second spring, the push plate can be pushed to rotate in opposite directions on one side of the moving plate, resetting the push plate and making contact with another triangular tooth. During the resetting process of the push plate, the interceptor plate moves away from the push plate. One side will hold the triangular teeth in place to prevent the friction between the push plate and the triangular teeth during the reset process from causing the rotating disk to reverse. This allows the rotating disk to stably drive the first rotating shaft to rotate on the box. The first rotating shaft will drive the winding disk to rotate at a certain angle, and the winding disk will wind up the first pull rope, causing the first pull rope to pull the pressure plate. At this time, the two limit rods fixed to the pressure plate will slide synchronously on the two limit blocks, thereby ensuring the stability of the pressure plate during the movement. By repeatedly pressing and releasing the press plate, the pressure plate can be continuously moved towards the syringe until the pressure plate contacts the piston rod of the syringe. Step two, drug administration: Each time the stem cell exosome repair fluid is squeezed out of the syringe, simply press and release the button once. This will push the piston rod a short distance, squeezing out a small amount of the stem cell exosome repair fluid from the nipple. The squeezed-out stem cell exosome repair fluid can be directly applied to the skin. Since only a small amount of stem cell exosome repair fluid is discharged from the nipple with each press and release, the amount of fluid dispensed can be controlled to avoid waste. When the user needs to leave for a short or long time, the nipple can be covered with two protective shields on the protective mechanism to prevent contamination from external pollutants.

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