Subcutaneous drug filling material injection device and control system

Abstract

The present invention relates to the technical field of subcutaneous drug filling equipment, and discloses a subcutaneous drug filling material injection device, comprising a drive block, an injection gun, an air pump, a syringe, a hose, a needle, an annular cavity, a quantitative cavity, a strip block 1, an insertion rod, a pressure rod 1, a pressure rod 2, a pressure sensor 1 and a gear. The present invention is suitable for single-person use, easy to operate, can accurately adjust the needle insertion angle and accurately control the injection dose, and can evenly deliver the drug; the air pump of the present invention can not only play the function of uniformly pushing the drug, but also play the function of monitoring the push volume. In addition, the air pump can also adjust the needle insertion angle. The present invention uses the air pump for multiple purposes. Compared with the prior art, the motor structure is reduced, making the volume of the device more compact; the present invention uses the insertion rod to accurately determine the injection dose each time, and uses the insertion strip to determine the needle insertion angle, which can be adjusted at will according to the situation; at the same time, when the device is in use, the air pump operation can be controlled by the voice control module, making it more convenient to use.

Description

Technical Field

[0001] The present invention relates to the technical field of subcutaneous drug filling equipment, and in particular to a subcutaneous drug filling material injection device and a control system. Background Art

[0002] As people's living standards improve, they begin to pay attention to their own appearance and youthfulness. When people need to improve their appearance and maintain a youthful state, they can use subcutaneous drug filling plastic surgery to modify and correct it. Injection filling usually refers to the process of using fillers or other drugs to fill subcutaneously in order to repair a defect in a certain part of the skin. Compared with traditional plastic surgery methods, subcutaneous drug filling does not require surgery and mainly uses non-invasive subcutaneous drug filling methods. There are many subcutaneous drug filling plastic surgery projects, mainly including wrinkle removal and skin rejuvenation, which require injection devices. For example, mesotherapy requires a special injection instrument.

[0003] Because subcutaneous drug injections require fine-tuning, the requirements for injection dosage and speed are even stricter. Even the slightest deviation can lead to subcutaneous filling failure. Therefore, precise control of injection dosage and speed is crucial during the subcutaneous drug filling process. Furthermore, different injection sites often require different needle insertion angles. Authorization Publication No. CN 113134136 B, titled "Injection Device for Cosmetic and Plastic Surgery," is also designed to facilitate medical personnel's control of injection dosage. However, this device cannot adjust the needle insertion angle and is relatively large. Summary of the Invention

[0004] In view of the above problems, the present invention provides a subcutaneous drug filling material injection device that can accurately inject a dose and adjust the needle insertion angle and has a small volume.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions:

[0006] A subcutaneous drug filling material injection device comprises a drive block and a cylindrical injection gun, wherein the drive block is provided with an air pump; the injection gun is provided at one end of the drive block, and a mounting hole is provided in the center of the injection gun, extending through the length of the injection gun; a syringe is provided in the mounting hole, which is detachably connected to the mounting hole;

[0007] A piston is provided in the syringe, and an end of the syringe close to the drive block is open. An end of the syringe away from the drive block is provided with a base plate, and a perforation is provided on the base plate. An end of the perforation away from the syringe is provided with a hose, and an end of the hose away from the perforation is provided with a connecting block. A perforation is provided in the connecting block, which is connected to the hose, and a needle is provided on the end of the connecting block away from the hose.

[0008] An annular cavity, which is arranged around the mounting hole and has the same volume as the volume of the syringe, is provided on one side of the injection gun facing the drive block. An annular piston 2 is provided in the annular cavity. A metering cavity, which is arranged around the annular cavity, is provided on the other side of the injection gun facing the drive block. An annular piston 3 is provided in the metering cavity. A connecting channel is provided between an end of the annular cavity away from the drive block and an end of the metering cavity away from the drive block. A channel 1 is provided in the drive block. One end of the channel 1 is connected to the metering cavity, and the other end of the channel 1 is connected to the outside world.

[0009] The outer wall of the injection gun is provided with a strip block 1 arranged along the length direction of the injection gun, and the side of the strip block 1 facing away from the injection gun is provided with a plurality of holes marked with injection amounts and arranged equidistantly along the length direction of the injection gun. The outer wall of the injection gun is provided with a plurality of through-holes 3 arranged equidistantly along the length direction of the injection gun at a position opposite to the strip block 1, and the plurality of through-holes 3 are opposite to the plurality of through-holes one by one, and the plurality of through-holes 3 are connected to the quantitative chamber; a rod is provided in any one of the through-holes, and the rod is detachably connected to the through-hole;

[0010] A pressure rod 1 is provided in the socket, and a piston 4 is provided at the end of the pressure rod 1 away from the quantitative chamber, the inner wall of the socket is provided with an annular groove, and a spring 1 is provided on the inner wall of the annular groove on the side away from the through-hole 3, and the outer wall of the pressure rod 1 is provided with an annular slider located in the annular groove and arranged around the pressure rod 1, and the end of the spring 1 close to the through-hole 3 is connected to the annular slider; the end of the pressure rod 1 close to the through-hole 3 is provided with a spring 2, and the end of the spring 2 away from the pressure rod 1 is provided with a pressure rod 2 extending into the through-hole 3, and the end of the pressure rod 2 away from the spring 2 is an arc surface; the side of the piston 3 facing the through-hole 3 is provided with an arc-shaped pressure groove for inserting the end of the pressure rod 2 provided with the arc surface, and a pressure sensor 1 is provided in the pressure groove; the end of the side wall of the piston 3 provided with the pressure groove facing the channel 1 is an arc surface;

[0011] A gear which can rotate relative to the injection gun is provided on one side of the injection gun facing the needle, and the gear is detachably connected to the connecting block; the air pump can drive piston 1 and piston 2 to move back and forth.

[0012] Furthermore, a circular sealing rubber ring is provided on the inner wall of the mounting hole at one end close to the driving block, and the end of the injection barrel close to the driving block abuts against the end of the sealing rubber ring facing the injection barrel.

[0013] Furthermore, the outer wall of the injection cylinder at one end close to the driving block is screwed to the inner wall of the mounting hole at one end close to the driving block.

[0014] Furthermore, the outer side wall of the insertion rod is provided with a locking protrusion, and the inner wall of the insertion hole is provided with a locking groove engaged with the locking protrusion.

[0015] Furthermore, a connecting rod passing through the gear is provided at the center of the gear, and the gear can rotate relative to the connecting rod. Both ends of the connecting rod are provided with fixing rods connected to the injection gun.

[0016] Furthermore, the outer wall of the injection gun is provided with a strip block 2 arranged along the length direction of the injection gun, the strip block 2 is provided with a through hole 4 connected to the air pump in the drive block and arranged along the length direction of the injection gun, a piston 5 is provided in the through hole 4, the piston 5 is provided with a push rod extending out of the through hole 4 on the side where the needle is located, the push rod is provided with a push column arranged along the length direction of the injection gun at the end away from the piston 5, and the push column is provided with a rack 1 arranged along the length direction of the injection gun on the side facing the injection gun; the injection gun is provided with a detection block on the side facing the strip block 2, and the detection block is provided. The measuring block is arranged at one end of the injection gun close to the needle, and the push column passes through the detection block; an angle measuring area is provided on the side of the push column facing away from the injection gun, and the angle measuring area is located on the side of the detection block facing the push rod, and the angle measuring area is provided with a plurality of slots equidistantly arranged along the length direction of the push column, and an insertion strip is provided in any one of the slots, and a handle is provided at the end of the insertion strip passing through the slot, and a pressure block is provided on the side of the handle facing the detection block, and a pressure sensor 2 is provided on the side of the detection block facing the pressure block; the gear is engaged with a rack 1; and the air pump can drive the piston 5 to move back and forth.

[0017] Furthermore, the air inlet of the air pump is provided with an air inlet pipe 1 connected to the outside world, the air outlet of the air pump is provided with an air outlet pipe 1 connected to the mounting hole, and the air outlet pipe 1 is provided with an air outlet pipe 2 connected to the annular cavity; a channel 2 is provided between the air inlet pipe 1 and the air outlet pipe 2, the air outlet pipe 1 is provided with a channel 3 connected to the perforation 4, the channel 3 is provided with a channel 4 connected to the outside world, and the air inlet pipe 1 is provided with an air inlet pipe 2 connected to the perforation 4 after passing through the driving block; the air inlet pipe 1 and the air inlet pipe 2 are respectively provided with a solenoid valve 1 and a solenoid valve 2, the channel 2 and the channel 4 are respectively provided with a solenoid valve 3 and a solenoid valve 4, a solenoid valve 5 is provided at the air outlet pipe between the channel 3 and the air outlet pipe 2, and a solenoid valve 6 is provided at the end of the channel 3 away from the air outlet pipe 1.

[0018] Furthermore, the side wall of the gear is provided with a through hole six passing through the thickness direction of the gear, the connecting block is provided with a through hole seven, the through hole six is ​​provided with a screw passing through the through hole six and screwed to the through hole six, and the screw can also pass through the through hole seven and screwed to the through hole seven.

[0019] Furthermore, a connector is provided at one end of the hose close to the injection barrel, and a through-hole eight is provided in the connector that passes through the connector and communicates with the hose, and the connector is screwed to the through-hole one.

[0020] In order to solve the above technical problems, the present invention also provides a control system, which includes a control module, a voice control module and a battery. The control module is provided with a data processing module and a control module. The pressure sensor 1 and the pressure sensor 2 transmit the pressure value signal to the data processing module. After the data processing module processes the pressure value signal, it sends control information to the control module, thereby controlling the operation or shutdown of the air pump, or controlling the solenoid valve 1, solenoid valve 2, solenoid valve 3, solenoid valve 4, solenoid valve 5 and solenoid valve 6 to be opened or closed; the voice control module is used to receive voice information and send the voice information to the data processing module. After the data processing module processes the voice information, it sends control information to the control module, thereby controlling the operation or shutdown of the air pump, or controlling the solenoid valve 1, solenoid valve 2, solenoid valve 3, solenoid valve 4, solenoid valve 5 and solenoid valve 6 to be opened or closed.

[0021] Compared with the prior art, the present invention has the following advantages: the present invention is suitable for single-person use, is easy to operate, can accurately adjust the needle insertion angle and accurately control the injection dose, and can evenly deliver the drug;

[0022] The annular cavity of the present invention has the same volume as that of the syringe. When injecting the drug, the volume of gas pushed into the quantitative cavity by the annular cavity is the same as the volume of liquid pushed out of the syringe. Therefore, the air pump can not only inject the drug at a uniform speed, but also monitor the injection volume. In addition, the air pump can also adjust the needle insertion angle. The present invention uses the air pump for multiple purposes. Compared with the prior art, it reduces the motor structure and makes the device more compact.

[0023] The present invention uses an insertion rod to accurately determine the injection dose of each time, and uses an insertion strip to determine the needle insertion angle, which can be adjusted at will according to the situation; at the same time, when the device is in use, the air pump operation can be controlled by a voice control module, which is more convenient to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a front view of the external structure of the present invention;

[0025] Figure 2 This is a front view of the connecting block of the present invention when it is connected to the gear;

[0026] Figure 3 It is a front view of the internal structure of the present invention;

[0027] Figure 4 for Figure 3 A magnified view of point A;

[0028] Figure 5 for Figure 3 An enlarged view of point B;

[0029] Figure 6 for Figure 5An enlarged view of point C (the second pressure rod has not entered the pressure groove);

[0030] Figure 7 for Figure 5 An enlarged view of point C (where the second pressure rod enters the pressure groove);

[0031] Figure 8 Schematic diagram of the internal structure of the driving block of the present invention;

[0032] Figure 9 This is a right side view of the injection gun of the present invention when the strip block 1 and the strip block 2 are not provided;

[0033] Among them: 1. Drive block; 2. Injection gun; 3. Air pump; 4. Mounting hole; 5. Syringe; 6. Piston 1; 7. Bottom plate; 8. Perforation 1; 9. Hose; 10. Connecting block; 11. Perforation 2; 12. Needle; 13. Annular cavity; 14. Piston 2; 15. Dosing cavity; 16. Piston 3; 17. Connecting channel; 18. Channel 1; 19. Strip block 1; 20. Insertion hole; 21. Perforation 3; 22. Insertion rod; 23. Pressure rod 1; 24. Piston 4; 25. Annular groove; 26. Spring 1; 27. Annular slider; 28. Spring 2; 29. ​​Pressure rod 2; 30. Pressure groove; 31. Pressure sensor 1; 32. Gear; 33. Sealing rubber ring; 34. Card convex; 35. Card groove; 36. Connecting rod; 3 7. Fixing rod; 38. Bar block 2; 39. Perforation 4; 40. Piston 5; 41. Push rod; 42. Push column; 43. Rack 1; 44. Detection block; 45. Slot; 46. Insert; 47. Handle; 48. Pressure block; 49. Pressure sensor 2; 50. Inlet pipe 1; 51. Outlet pipe 1; 52. Outlet pipe 2; 53. Channel 2; 54. Channel 3; 55. Channel 4; 56. Inlet pipe 2; 57. Solenoid valve 1; 58. Solenoid valve 2; 59. Solenoid valve 3; 60. Solenoid valve 4; 61. Solenoid valve 5; 62. Solenoid valve 6; 63. Perforation 6; 64. Perforation 7; 65. Screw; 66. Connector; 67. Perforation 8; 68. Control module; 69. Voice control module; 70. Battery. DETAILED DESCRIPTION

[0034] In order to make the objectives, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below in conjunction with examples and drawings. The exemplary embodiments of the present invention and their descriptions are only used to explain the present invention and are not intended to limit the present invention.

[0035] Example:

[0036] See also Figures 1 to 9A subcutaneous drug filling material injection device includes a drive block 1 and an injection gun 2. The drive block 1 and the injection gun 2 are both cylindrical. An air pump 3 is provided in the drive block 1. The injection gun 2 is provided at one end of the drive block 1 and is bonded to the drive block 1.

[0037] A mounting hole 4 is provided in the center of the injection gun 2 and passes through the length direction of the injection gun 2. A syringe 5 detachably connected to the mounting hole 4 is provided in the mounting hole 4. The outer wall of the syringe 5 at one end close to the driving block 1 is screwed to the inner wall of the mounting hole 4 at one end close to the driving block 1. During installation, the syringe 5 is directly inserted into the mounting hole 4. When the end of the syringe 5 close to the driving block 1 moves to the end of the mounting hole 4 close to the driving block 1, the syringe 5 is rotated again to fix the syringe 5 in the mounting barrel.

[0038] In order to ensure the airtightness inside the syringe 5, in this embodiment, a circular sealing rubber ring 33 is provided on the inner wall of the mounting hole 4 close to the driving block 1. The end of the syringe 5 close to the driving block 1 abuts against the end of the sealing rubber ring 33 facing the syringe 5, thereby increasing the airtightness.

[0039] A piston 6 is installed within the syringe 5. The end of the syringe 5 closest to the drive block 1 is open, and the end of the syringe 5 facing away from the drive block 1 is provided with a base plate 7, which is integrally formed with the syringe 5. Base plate 7 is provided with a perforation 8, which communicates with the interior of the syringe 5. A hose 9 is provided at the end of perforation 8 facing away from the syringe 5. A connecting block 10 is provided at the end of the hose 9 facing away from perforation 8. The hose 9 is bonded to both the syringe 5 and the connecting block 10. The connecting block 10 is provided with a perforation 11, which communicates with the interior of the hose 9. A needle 12 is provided at the end of the connecting block 10 facing away from the hose 9. The needle 12 is integrally formed with the connecting block 10.

[0040] A connector 66 is provided at one end of the hose 9 close to the syringe 5. A perforation 8 67 is provided in the connector 66 and passes through the connector 66 and communicates with the hose 9. The connector 66 is bonded to the hose 9 and is threadedly connected to the perforation 8.

[0041] The side of the injection gun 2 facing the driver block 1 is provided with an annular cavity 13 surrounding the mounting hole 4. The volume of the annular cavity 13 is the same as that of the syringe 5, and an annular piston 2 14 is located within the annular cavity 13. The side of the injection gun 2 facing the driver block 1 is also provided with a metering cavity 15 surrounding the annular cavity 13, and an annular piston 3 16 is located within the metering cavity 15. A connecting channel 17 is provided between the end of the annular cavity 13 facing away from the driver block 1 and the end of the metering cavity 15 facing away from the driver block 1. A channel 18 is provided within the driver block 1, one end of which communicates with the metering cavity 15, and the other end of which communicates with the outside world.

[0042] The outer wall of the injection gun 2 is provided with a strip-shaped block 19 extending along the length of the gun 2. The strip-shaped block 19 is bonded to the gun 2. On the side of the strip-shaped block 19 facing away from the gun 2, there are multiple holes 20 marked with injection amounts, spaced evenly along the length of the gun 2. Directly opposite the strip-shaped block 19, the outer wall of the injection gun 2 is provided with multiple perforations 21, spaced evenly along the length of the gun 2. These perforations 21 are aligned with the multiple perforations 20, and the perforations 21 communicate with the metering chamber 15. A rod 22 is located within any of the perforations 20, detachably connected to the perforation 20 and capable of insertion into any of the perforations 20.

[0043] In this embodiment, a latching protrusion 34 is provided on the outer wall of the insertion rod 22 , and the latching protrusion 34 is bonded to the insertion rod 22 . A latching groove 35 is provided on the inner wall of the insertion hole 20 to engage with the latching protrusion 34 .

[0044] A pressure rod 23 is disposed within the socket 20. A piston 24 is bonded to the end of the pressure rod 23 facing away from the metering chamber 15. The piston 24 is bonded to the pressure rod 23, allowing the pressure rod 23 to move within the socket 20 in a direction away from or toward the metering chamber 15. An annular groove 25 is defined on the inner wall of the socket 20, the length of which is perpendicular to the length of the injection gun 2. A spring 26 is disposed on the inner wall of the annular groove 25 facing away from the perforation 21. An annular slider 27 is positioned on the outer wall of the pressure rod 23, positioned within the annular groove 25 and surrounding the pressure rod 23. The slider 27 is integrally formed with the pressure rod 23 and can slide along the groove 25. The end of the spring 26 facing the perforation 21 is connected to the slider 27, which is bonded to both the bar 19 and the slider 27.

[0045] The end of compression rod 1 23 near perforation 3 21 is equipped with spring 28 2. The end of spring 28 away from compression rod 1 23 is equipped with compression rod 29 2, which extends into perforation 3 21. Spring 28 28 is bonded to both compression rod 1 23 and compression rod 2 29. The end of compression rod 29 away from spring 28 is circular. When insertion rod 22 is not inserted into insertion hole 20, compression rod 1 23 is not compressed by insertion rod 22, and spring 1 26 and spring 28 are both relaxed. At this time, compression rod 29 2 is fully retracted into perforation 3 21.

[0046] A circular arc-shaped pressure groove 30 is provided on the side of the piston three 16 facing the perforation three 21 for the insertion of the end of the pressure rod two 29 with a circular arc surface. A pressure sensor one 31 is provided in the pressure groove 30. The end of the side wall of the piston three 16 with the pressure groove 30 facing the channel one 18 is a circular arc surface. When the piston 22 is inserted into a certain hole 20, the pressure groove 30 of the piston three 16 moves with the piston three 16 to the through-hole three 21 corresponding to the insertion hole 20. Since the insertion rod 22 squeezes the pressure rod one 23, the end of the pressure rod two 29 with the arc surface is squeezed out of the through-hole three 21. At this time, the spring one 26 is in a stretched state. When the piston three 16 moves toward the side where the channel one 18 is located, the piston three 16 hits the squeezed pressure rod two 29. The end of the piston three 16 with the arc surface squeezes the pressure rod two 29, squeezing the pressure rod two 29 into the through-hole three 21. At this time, the spring two 28 is in a compressed state, and the piston three 16 continues to move until the pressure groove 30 is exactly opposite to the through-hole three 21 at this location. The pressure rod two 29 is squeezed into the pressure groove 30 by the spring two 28, and the pressure sensor one 31 senses the pressure, thereby prompting the air pump 3 to shut down and no longer inject liquid, completing a quantitative injection; after the insertion rod 22 is pulled out, the elastic force of the spring one 26 will pull the pressure rod one 23 back to its original position.

[0047] The side of the injection gun 2 facing the needle 12 is equipped with a gear 32 that rotates relative to the injection gun 2. Gear 32 is detachably connected to the connecting block 10; the air pump 3 drives piston 1 6 and piston 2 14 to move back and forth. In this embodiment, the sidewall of the gear 32 is provided with a sixth through-hole 63 extending through the thickness of the gear 32. The connecting block 10 is provided with a seventh through-hole 64. This sixth through-hole 63 is provided with a screw 65 that passes through and is threadedly engaged with the sixth through-hole 63. The screw 65 also passes through and is threadedly engaged with the seventh through-hole 64. To install the connecting block 10 on the gear 32, simply thread the screw 65 into the seventh through-hole 64.

[0048] In this embodiment, a connecting rod 36 is provided at the center of the gear 32 passing through the gear 32, and the gear 32 can rotate relative to the connecting rod 36. Both ends of the connecting rod 36 are provided with fixing rods 37 connected to the injection gun 2, and the fixing rod 37 is bonded to the connecting rod 36 and the injection gun 2.

[0049] The outer wall of the injection gun 2 is provided with a second strip block 38 extending along the length of the injection gun 2 and bonded to the injection gun 2. A fourth through-hole 39 is provided on the second strip block 38, extending along the length of the injection gun 2 and communicating with the air pump 3 within the drive block 1. A piston 40 is positioned within the fourth through-hole 39. A push rod 41, extending from the fourth through-hole 39 on the side of the piston 40 facing the needle 12, is bonded to the piston 40. A push post 42 is provided on the end of the push rod 41 facing away from the piston 40, extending along the length of the injection gun 2. The push post 42 and the push rod 41 are integrally formed.

[0050] The side of the push post 42 facing the injection gun 2 is equipped with a rack 1 43 extending along the length of the injection gun 2. The gear 32 meshes with the rack 1 43. The side of the injection gun 2 facing the bar block 2 38 is equipped with a detection block 44. The detection block 44 is located at the end of the injection gun 2 near the needle 12 and is bonded to the injection gun 2. The push post 42 passes through the detection block 44 and can move relative to the detection block 44.

[0051] An angle measurement area is provided on the side of the push column 42 facing away from the injection gun 2. The angle measurement area is located on the side of the detection block 44 facing the push rod 41. The angle measurement area is provided with a plurality of slots 45 equidistantly arranged along the length of the push column 42. Each slot 45 is marked with an angle corresponding to the rotation of the gear 32. An insertion strip 46 is provided in any slot 45, and the insertion strip 46 can be inserted into any slot 45. A handle 47 is provided at one end of the insertion strip 46 extending through the slot 45. The handle 47 and the slot 45 are integrally manufactured, and the handle 47 facilitates the user to operate the insertion strip 46. A pressure block 48 is provided on the side of the handle 47 facing the detection block 44. The pressure block 48 is bonded to the handle 47. A pressure sensor 2 49 is provided on the side of the detection block 44 facing the pressure block 48. The air pump 3 can drive the piston 5 40 to move back and forth.

[0052] In this embodiment, the air pump 3 has an inlet port connected to the outside world, an outlet port connected to an outlet port 51 connected to the mounting hole 4, and an outlet port 51 connected to an outlet port 52 connected to the annular cavity 13. The outlet port 52 and the outlet port 51 are integrally formed. A second channel 53 is provided between the inlet port 50 and the second outlet port 52. The outlet port 51 has a third channel 54 connected to the fourth through-hole 39. The third channel 54 is located at the end of the outlet port 52 near the air pump 3. The third channel 54 is connected to the outside world, a fourth channel 55. The inlet port 50 has an inlet port 56 connected to the fourth through-hole 39 after passing through the driver block 1. The inlet port 56 is bonded to the second strip block 38. Solenoid valve one 57 and solenoid valve two 58 are respectively provided at the air inlet pipe one 50 and the air inlet pipe two 56, solenoid valve three 59 and solenoid valve four 60 are respectively provided at the channel two 53 and the channel four 55, a solenoid valve five 61 is provided at the air outlet pipe one 51 between the channel three 54 and the air outlet pipe two 52, and a solenoid valve six 62 is provided at the end of the channel three 54 away from the air outlet pipe one 51.

[0053] The present invention also includes a control system, which includes a control module 68, a voice control module 69, and a battery 70, which are arranged in the drive block 1. The control module 68 is provided with a data processing module and a control module. The pressure sensor 1 31 and the pressure sensor 2 49 transmit pressure value signals to the data processing module. After the data processing module processes the pressure value signals, it sends control information to the control module, thereby controlling the operation or shutdown of the air pump 3, or the opening or closing of the solenoid valve 1 57, the solenoid valve 2 58, the solenoid valve 3 59, the solenoid valve 4 60, the solenoid valve 5 61, and the solenoid valve 6 62. The voice control module 69 is used to receive voice information and send the voice information to the data processing module. After the data processing module processes the voice information, it sends control information to the control module, thereby controlling the operation or shutdown of the air pump 3, or the opening or closing of the solenoid valve 1 57, the solenoid valve 2 58, the solenoid valve 3 59, the solenoid valve 4 60, the solenoid valve 5 61, and the solenoid valve 6 62.

[0054] The operating principle of this embodiment is as follows: when in use, the connecting block 10 is installed on the gear 32 in the above-mentioned manner. At this time, the angle measurement area is located on the side of the detection block 44 facing the push rod 41, the piston 1 6 is located at the end of the syringe 5 close to the needle 12, and the piston 2 14 is located at the end of the annular cavity 13 away from the driving block 1; through the control panel of the control module 68, or by shouting the four words "absorb liquid" to the voice control module 69, the control module 68 controls the air pump 3 to start, and at the same time opens the solenoid valve 2 58 and the solenoid valve 4 60. The air pump 3 simultaneously draws out the gas in the annular cavity 13 and the syringe 5 from the outlet pipe 1 51, the outlet pipe 2 52, the channel 2 53, the inlet pipe 1 50, the air pump 3, the outlet pipe 1 51, the channel 3 54 and the channel 4 55, thereby driving the piston 1 6 and the piston The second piston 14 moves toward the driving block 1, thereby sucking the liquid medicine into the syringe 5 through the needle 12. During this period, the needle 12 can be replaced by unscrewing the connector 66. When sucking the liquid medicine, although there is the channel 18, the metering chamber 15 will still generate a certain suction force on the perforation 3 21 and the insertion hole 20. In order to prevent this suction force from driving the piston 4 24 to move in the direction close to the perforation 3 21, the elastic force of the spring 1 26 needs to be strong enough to withstand this suction force, thereby preventing the piston 4 24 from moving when the liquid medicine is sucked. In addition, when the piston 3 16 moves in the direction away from the driving block 1, the air pressure in the metering chamber 15 will tend to suck the piston 4 24 toward the perforation 3 21. Therefore, the elastic force of the spring 1 26 also needs to be strong enough to withstand the suction force in this direction, that is, the spring 1 26 can only be pressed by manual force.

[0055] Then, according to the injection volume of a single single point, the insertion rod 22 is inserted into the corresponding insertion hole 20. If the angle of the needle 12 needs to be adjusted, the insertion strip 46 is inserted into the corresponding slot 45. Then, the operation panel of the control module 68 is operated, or "adjust the needle angle" or "injection" is shouted to the voice control module 69. When the needle angle needs to be adjusted, the control module 68 drives the solenoid valve 1 57 and the solenoid valve 6 62 to open, and the other solenoid valves are closed. The air pump 3 pumps gas into the perforation 4 39, thereby pushing the piston 5 40 to move toward the side where the gear 32 is located, and then pushing the push column 42 to move. The push column 42 drives the gear 32 to rotate, thereby driving the needle 12 to tilt. When the pressure block 48 moves to the detection block 44, the pressure block 48 presses the pressure sensor 2 49. The control panel obtains the pressure value information of the pressure sensor 2 49 and immediately turns off the air pump 3, the solenoid valve 1 57 and the solenoid valve 6 62, indicating that the needle angle adjustment is completed. If an injection is to be performed During the injection, the control panel controls the solenoid valve 1 57 and the solenoid valve 5 61 to open, and the other solenoid valves to close. The air pump 3 injects gas into the annular cavity 13 and the syringe 5, thereby pressing the piston 1 6 and the piston 2 14 to move toward the side away from the drive block 1, and then injecting the liquid medicine. During this process, the piston 3 16 is pressed by the air pressure generated by the movement of the piston 2 14, and the piston 3 16 moves toward the side close to the drive block 1. According to the aforementioned mechanical process, when the pressure groove 30 moves to the through-hole 3 21 where the insertion rod 22 is inserted, the pressure rod 29 there enters the pressure groove 30, and the pressure sensor 1 31 senses the pressure value. The control module 68 controls the air pump 3, the solenoid valve 1 57 and the solenoid valve 5 61 to close, indicating that the injection is completed. During this process, because there will be air pressure from the metering cavity 15 in the through-hole 3 21 and the insertion hole 20, in order to prevent the air pressure from dissipating from the through-hole 3 21 and the insertion hole 20, the inventor designed the piston 4 24 to avoid air leakage.

[0056] The above are embodiments of the present invention. The above embodiments and the specific parameters therein are only for the purpose of clearly describing the invention verification process and are not intended to limit the scope of patent protection of the present invention. The scope of patent protection of the present invention shall still be subject to the claims. Any equivalent structural changes made by using the contents of the description and drawings of the present invention shall also be included in the scope of protection of the present invention.

Claims

1. A subcutaneous drug filling material injection device, characterized in that: The invention comprises a driving block (1) and a cylindrical injection gun (2), wherein an air pump (3) is provided in the driving block (1); the injection gun (2) is provided at one end of the driving block (1); a mounting hole (4) is provided at the center of the injection gun (2) and passes through the longitudinal direction of the injection gun (2); and an injection barrel (5) is provided in the mounting hole (4) and is detachably connected to the mounting hole (4); A piston (6) is provided in the injection cylinder (5), and a needle (12) is provided at one end of the injection cylinder (5) away from the driving block (1); The injection gun (2) is provided with an annular cavity (13) arranged around the mounting hole (4) and having the same volume as the volume of the injection barrel (5) on the side facing the driving block (1), and an annular piston 2 (14) is provided in the annular cavity (13); the injection gun (2) is also provided with a quantitative cavity (15) arranged around the annular cavity (13) on the side facing the driving block (1), and an annular piston 3 (16) is provided in the quantitative cavity (15); a connecting channel (17) is provided between the end of the annular cavity (13) away from the driving block (1) and the end of the quantitative cavity (15) away from the driving block (1), and a channel 1 (18) is provided in the driving block (1), one end of the channel 1 (18) is connected to the quantitative cavity (15), and the other end of the channel 1 (18) is connected to the outside world; The outer wall of the injection gun (2) is provided with a strip block (19) arranged along the length direction of the injection gun (2), and a side of the strip block (19) facing away from the injection gun (2) is provided with a plurality of jacks (20) with injection amounts marked thereon and arranged equidistantly along the length direction of the injection gun (2). The outer wall of the injection gun (2) is provided with a plurality of perforations (21) equidistantly arranged along the length direction of the injection gun (2) at a position facing the strip block (19), and the plurality of perforations (21) are facing the plurality of jacks (20) one by one, and the plurality of perforations (21) are connected to the quantitative chamber (15); an insertion rod (22) is provided in any one of the jacks (20), and the insertion rod (22) is detachably connected to the jack (20); A pressure rod (23) with a reset function is provided in the jack (20), a piston (24) is provided at the end of the pressure rod (23) away from the metering chamber (15), a spring (28) is provided at the end of the pressure rod (23) close to the perforation (21), a pressure rod (29) is provided at the end of the spring (28) away from the pressure rod (23) and inserted into the perforation (21), and the end of the pressure rod (29) away from the spring (28) is an arc surface; a side of the piston (16) facing the perforation (21) is provided with an arc-shaped pressure groove (30) for inserting the end of the pressure rod (29) provided with the arc surface, and a pressure sensor (31) is provided in the pressure groove (30); the side wall of the piston (16) provided with the pressure groove (30) is an arc surface at the end facing the channel (18); The injection gun (2) is provided with a gear (32) on the side facing the needle (12) that can rotate relative to the injection gun (2), and the gear (32) is detachably connected to the needle (12); the air pump (3) can drive piston 1 (6) and piston 2 (14) to move back and forth.

2. A subcutaneous drug filling material injection device according to claim 1, characterized in that: An annular sealing rubber ring (33) is provided on the inner wall of the mounting hole (4) at one end close to the driving block (1), and the end of the injection cylinder (5) close to the driving block (1) abuts against the end of the sealing rubber ring (33) facing the injection cylinder (5).

3. A subcutaneous drug filling material injection device according to claim 1, characterized in that: The outer wall of the injection cylinder (5) at one end close to the driving block (1) is screwed to the inner wall of the mounting hole (4) at one end close to the driving block (1).

4. A subcutaneous drug filling material injection device according to claim 1, characterized in that: The inner wall of the insertion hole (20) is provided with an annular groove (25), and the inner wall of the annular groove (25) away from the third through hole (21) is provided with a spring (26). The outer wall of the pressure rod (23) is provided with an annular slider (27) located in the annular groove (25) and arranged around the pressure rod (23). One end of the spring (26) close to the third through hole (21) is connected to the annular slider (27). The outer wall of the insertion rod (22) is provided with a clamping protrusion (34), and the inner wall of the insertion hole (20) is provided with a clamping groove (35) that is engaged with the clamping protrusion (34).

5. A subcutaneous drug filling material injection device according to claim 1, characterized in that: A connecting rod (36) passing through the gear (32) is provided at the center of the gear (32), and the gear (32) can rotate relative to the connecting rod (36). Both ends of the connecting rod (36) are provided with fixing rods (37) connected to the injection gun (2).

6. A subcutaneous drug filling material injection device according to claim 1, characterized in that: The outer wall of the injection gun (2) is provided with a strip block 2 (38) arranged along the length direction of the injection gun (2), the strip block 2 (38) is provided with a through hole 4 (39) connected to the air pump (3) in the driving block (1) and arranged along the length direction of the injection gun (2), the through hole 4 (39) is provided with a piston 5 (40), the piston 5 (40) is provided with a push rod (41) extending out of the through hole 4 (39) on the side facing the needle (12), the push rod (41) is provided with a push column (42) arranged along the length direction of the injection gun (2) on the end away from the piston 5 (40), the push column (42) is provided with a rack 1 (43) arranged along the length direction of the injection gun (2) on the side facing the injection gun (2); the injection gun (2) is provided with a detection block (44) on the side facing the strip block 2 (38), and the detection block (44) is provided with a At the end of the injection gun (2) close to the needle (12), the push column (42) passes through the detection block (44); an angle measurement area is provided on the side of the push column (42) facing away from the injection gun (2), and the angle measurement area is located on the side of the detection block (44) facing the push rod (41); the angle measurement area is provided with a plurality of slots (45) arranged equidistantly along the length direction of the push column (42); an insertion strip (46) is provided in any one of the slots (45); an end of the insertion strip (46) passing through the slot (45) is provided with a handle (47); a pressure block (48) is provided on the side of the handle (47) facing the detection block (44); a pressure sensor 2 (49) is provided on the side of the detection block (44) facing the pressure block (48); the gear (32) is meshed with the rack 1 (43); and the air pump (3) can drive the piston 5 (40) to move back and forth.

7. A subcutaneous drug filling material injection device according to claim 6, characterized in that: The air inlet of the air pump (3) is provided with an air inlet pipe (50) communicating with the outside world, the air outlet of the air pump (3) is provided with an air outlet pipe (51) communicating with the mounting hole (4), the air outlet pipe (51) is provided with an air outlet pipe (52) communicating with the annular cavity (13); a channel (53) is provided between the air inlet pipe (50) and the air outlet pipe (52), the air outlet pipe (51) is provided with a channel (54) communicating with the perforation (39), the channel (54) is provided with a channel (55) communicating with the outside world, the air inlet pipe (5 0) is provided with an air inlet pipe 2 (56) which passes through the driving block (1) and communicates with the inside of the through hole 4 (39); the air inlet pipe 1 (50) and the air inlet pipe 2 (56) are respectively provided with a solenoid valve 1 (57) and a solenoid valve 2 (58); the channel 2 (53) and the channel 4 (55) are respectively provided with a solenoid valve 3 (59) and a solenoid valve 4 (60); the air outlet pipe 1 (51) between the channel 3 (54) and the air outlet pipe 2 (52) is provided with a solenoid valve 5 (61); the end of the channel 3 (54) away from the air outlet pipe 1 (51) is provided with a solenoid valve 6 (62).

8. A subcutaneous drug filling material injection device according to claim 1, characterized in that: The end of the injection cylinder (5) away from the driving block (1) is provided with a bottom plate (7), the bottom plate (7) is provided with a through hole (8), the end of the through hole (8) away from the injection cylinder (5) is provided with a hose (9), the end of the hose (9) away from the through hole (8) is provided with a connecting block (10), the connecting block (10) is provided with a through hole (11) communicating with the hose (9), the end of the connecting block (10) away from the hose (9) is connected to the needle (12); the side wall of the gear (32) is provided with a through hole (63) passing through the thickness direction of the gear (32), the connecting block (10) is provided with a through hole (64), the through hole (63) is provided with a screw (65) passing through the through hole (63) and being screwed to the through hole (63), and the screw (65) can also pass through the through hole (64) and be screwed to the through hole (64).

9. A subcutaneous drug filling material injection device according to claim 8, characterized in that: The end of the hose (9) close to the injection cylinder (5) is provided with a connector (66), and the connector (66) is provided with a through hole eight (67) passing through the connector (66) and communicating with the hose (9), and the connector (66) is screwed to the through hole one (8).

10. A control system for controlling the subcutaneous drug filling material injection device according to any one of claims 1 to 9, characterized in that: The control system comprises a control module (68), a voice control module (69) and a battery (70). The control module (68) is provided with a data processing module and a control module. The pressure sensor 1 (31) and the pressure sensor 2 (49) transmit pressure value signals to the data processing module. After the data processing module processes the pressure value signals, it sends control information to the control module, thereby controlling the air pump (3) to operate or shut down, or controlling the electromagnetic valve 1 (57), the electromagnetic valve 2 (58), the electromagnetic valve 3 (59), the electromagnetic valve 4 (60), the electromagnetic valve 5 (61) and the electromagnetic valve 6 (62) to open or close. The voice control module (69) is used to receive voice information and send the voice information to the data processing module. After the data processing module processes the voice information, it sends control information to the control module, thereby controlling the air pump (3) to operate or shut down, or controlling the electromagnetic valve 1 (57), the electromagnetic valve 2 (58), the electromagnetic valve 3 (59), the electromagnetic valve 4 (60), the electromagnetic valve 5 (61) and the electromagnetic valve 6 (62) to open or close.

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