High-pressure injector for injecting medicine in scar and injection method of high-pressure injector

Abstract

The invention relates to the technical field of medical injection, and discloses an intrascar drug injection high-pressure injector and an injection method thereof.The intrascar drug injection high-pressure injector comprises a main body shell, a glass shell is fixedly connected to the outer wall of the main body shell, a discharging opening is formed in the outer wall of the glass shell, and a reflux valve is fixedly connected to the outer wall of the discharging opening; the inner wall of the main body shell is fixedly connected with a driving motor, a piston column is driven by a sealing piston to reciprocate, liquid is injected into a scar through a needle tube, the liquid is injected in a long-term stable flow speed and pressure through the application of a flowing mechanism, and a person only needs to control a button on a controller when puncturing the needle tube into the scar, so that the scar can be punctured. The information is transmitted back to the equipment through the data line to control the injection of the needle tube, so that the problems that the injection precision is influenced, and the injection shakes to influence the surrounding normal tissues due to hand numbness caused by too frequent pushing during long-time manual injection are avoided.

Description

Technical Field

[0001] The present invention relates to the technical field of medical injection equipment, in particular to a high-pressure injector for injecting drugs into scars and an injection method thereof. Background Art

[0002] Intrascar drug injection is a common treatment for hypertrophic scars and keloids. Its core goal is to soften and shrink scars by injecting drugs (such as glucocorticoids and 5-fluorouracil) directly into scar tissue, inhibiting fibroblast activity and reducing collagen deposition. High-pressure injectors for intrascar drug injection are specialized devices that assist in this treatment. Structural optimization of traditional manual injectors (such as precision plungers and leak-proof needles) provides a foundational design reference for high-pressure injectors. When most scar syringes are in use, bubbles in the medicine bottle will enter the syringe. The bubbles in the syringe will be taken away by discharging a portion of the medicine liquid. However, since some gas may still remain in the medicine bottle, the flow is very likely to be interrupted during use. In order to prevent some gas from flowing from the hose and causing the medicine liquid to be interrupted, and at the same time prevent the gas from entering the scar, a high-pressure syringe for scar drug injection and an injection method thereof are proposed. Summary of the Invention

[0003] In order to solve the above technical problems, the present invention provides a device for injecting drugs into scars with a high-pressure syringe, comprising a main body shell and further comprising: The main body is provided with an installation space to provide a bracket for the installation of other components; The transmission mechanism is provided with a power source to provide mechanical power to the internal components of the device body; The flow mechanism is provided with a liquid flow valve for controlling the flow of liquid and preventing backflow; The outer wall of the main shell is fixedly connected to the glass shell, the outer wall of the glass shell is provided with a discharge port, the outer wall of the discharge port is fixedly connected to a reverse flow valve, the inner wall of the main shell is fixedly connected to the drive motor, and the outer wall of the glass shell is fixedly connected to the air storage pipe.

[0004] Preferably, the main body includes: A main body component, which is fixedly connected to the outer wall of the main body mechanism and is used for performing medical injections; The outer shell component is fixedly connected to the inner wall of the main body component to provide installation support.

[0005] Preferably, the transmission mechanism includes: The transmission assembly is fixedly connected to the inner wall of the main body shell and is used to provide basic power; The piston assembly is fixedly and slidably connected to the inner wall of the shell assembly and is used for reciprocating motion to make the liquid flow.

[0006] Preferably, the flow mechanism comprises: A sealing assembly is fixedly connected to the outer wall of the piston assembly to increase sealing performance and prevent liquid backflow; The flow component is fixedly connected to the outer wall of the sealing component and is used to control the switch when the liquid flows.

[0007] Preferably, the main body component includes a data cable fixedly connected to the outer wall of the main body shell, the end of the data cable away from the main body shell is fixedly connected to the controller, the outer wall of the controller is fixedly connected to the needle tube, the outer wall of the controller is fixedly connected to the medical hose, the outer wall of the medical hose is connected to the needle tube through the inside of the controller, and by directly connecting the second medical hose to the medical medicine barrel, the patient's scar can be quickly injected. The patient has many scars on the surface and the marks are large. Repeated syringe extraction and injection are not only time-consuming and laborious, but also when extracting the liquid medicine, due to the small amount of gas in the extraction process, part of the medicine will be wasted to exhaust the air each time the medicine is extracted. When using this device, the size of the patient's scar is observed, and an appropriate amount of medicine bottle is connected to the second medical hose. By reducing the frequency of extracting medicine and the number of exhaust times, waste of medicine is avoided.

[0008] Preferably, the shell assembly includes a fixing ring fixedly connected to the outer wall of the main shell, the inner wall of the fixing ring is fitly connected to the outer wall of the glass shell, the outer wall of the main shell is fixedly connected to a fixed sensor, the outer wall of the fixed sensor is fitly connected to a second medical hose, the inner wall of the main shell is fixedly connected to a cable plate, and the outer wall of the main shell is rotatably connected to an adjustment knob.

[0009] Preferably, the transmission assembly includes a rotating shaft fixedly connected to the output shaft of the drive motor, the inner wall of the main shell is fixedly connected to the rotating shell, the end of the rotating shaft away from the drive motor is rotatably connected to the inner wall of the rotating shell, and the outer wall of the rotating shaft is fixedly connected to a metal outer ring.

[0010] Preferably, the piston assembly includes a transmission shaft rotatably connected to the connecting rod on the outer wall of the metal outer ring, the end of the transmission shaft away from the metal outer ring is fixedly connected to a sealing piston, the end of the sealing piston away from the transmission shaft is fixedly connected to a piston column, the outer wall of the sealing piston is slidably connected to the piston chamber on the inner wall of the main shell, the outer wall of the piston column is slidably connected to the inner wall of the glass shell, and the top of the piston column is fixedly connected to the inner wall of the glass shell by the up and down reciprocating force of the piston column when the piston column moves up and down. The multi-layer sealing strip not only improves the sealing of the inside of the glass shell when the piston column moves, but also because the top of the piston column is in contact with the inside of the glass shell The fit is elliptical, and the multi-layer sealing strip arranged on the top of the piston column has a circumference that is generally longer than the inner wall diameter of the glass shell in order to improve the sealing performance. When the piston column moves, a space will be left between the piston column and the multi-layer sealing strip. When the piston column is pushed to the top of the glass shell and moves downward again, the multi-layer sealing strip will scrape against the inner wall of the glass shell to generate a certain pressure. When it moves to the counterflow valve 2, the pressure here will push the spring sealing plate 2 in advance, and it will close firmly before contacting the space formed by the top piston column and the glass shell, avoiding non-fluid contact of the liquid at the other end of the counterflow valve 2, thereby improving the rigor and safety of medication.

[0011] Preferably, the sealing assembly includes a multi-layer sealing strip fixedly connected to the end of the piston rod away from the sealing piston. The outer wall of the glass shell is provided with a feed port. When the piston rod moves back and forth, it continuously extracts liquid from the feed port and then discharges it outward through the discharge port. When the piston rod moves downward, a negative pressure is formed in the glass shell. When the piston rod moves downward and exceeds the feed port, the negative pressure formed will cause the spring sealing plate 2 to contract inward, thereby opening the switch of the reverse flow valve 2, allowing the liquid to enter the glass shell. When the piston rod moves upward, the piston rod will squeeze the internal space of the glass shell, causing its pressure to change. The piston rod is large, pushing the spring sealing plate 2 to close the reverse flow valve 2. The pressure will also push the spring sealing plate to open the reverse flow valve, completing the cycle. When the piston rod moves downward, the negative pressure formed will also suck the spring sealing plate, making the closure of the reverse flow valve more compact. Similarly, when the piston rod moves upward, the pressure generated in the glass shell will squeeze the spring sealing plate 2 to fit more closely with the inner wall of the reverse flow valve 2, so that the liquid extracted through the reverse flow valve 2 can only stay inside the glass shell, and then be discharged outward from the spring sealing plate by pushing, avoiding the phenomenon of liquid backflow when using this equipment.

[0012] Preferably, the flow component includes a spring sealing plate fixedly connected to the inner wall of the counter-flow valve, the outer wall of the feed port is fixedly connected to the counter-flow valve 2, the inner wall of the counter-flow valve 2 is fixedly connected to the spring sealing plate 2, and the end of the counter-flow valve 2 away from the feed port is fixedly connected to the medical hose 2, so that the driving motor drives the rotating shaft to rotate, and the rotating shaft drives the eccentric ring to rotate. When the eccentric ring rotates with the rotating shaft as the center, the metal outer ring connected to the outer wall of the eccentric ring will follow the movement, and at the same time, the position of the metal outer ring will change in an arc with the rotating shaft as the center, driving the upper end transmission shaft to present a relative up and down motion state. When the piston column is installed on the sealing piston, Driven by the piston, the piston column performs reciprocating motion. When the piston column moves downward, the liquid enters the glass shell. When the piston column moves upward, the second reverse flow valve is closed, the reverse flow valve is opened, and the liquid flows out through the reverse flow valve, thereby injecting the liquid into the scar through the needle. Through the use of the flow mechanism, it is kept in a long-term stable flow rate and pressure injection. When inserting the needle into the scar, the personnel only needs to control the button on the controller, and the information is transmitted back to the device through the data cable to control the injection of the needle. This avoids manual injection due to long-term manual injection and frequent numbness of the hand, which affects the injection accuracy and causes the injection to shake and affect the surrounding normal tissues.

[0013] A method for injecting drugs into scars using a high-pressure syringe comprises the following steps: S1: Install the device: Use a data cable to connect the controller to the main housing. Rotate the piston rod to install it on the top of the sealing piston. Place the fixing ring on the bottom outer wall of the glass housing. Then, cover the glass housing on the outer wall of the piston rod. Rotate the fixing ring to fix and seal it. S2: Start the equipment: Turn on the power of the equipment, ensure that the piston rod and the sealing piston are firmly connected, and move up and down driven by the bottom transmission mechanism, so that the liquid enters the glass shell through the feed port and is discharged from the discharge port. The operating power can be controlled by adjusting the adjustment knob; S3: Device injection: Turn on the button on the controller to first discharge the remaining gas in the hose and the medicine through the needle, then insert the needle into the scar tissue, turn on the device again to allow the medicine in the needle to enter the scar, and adjust the angle of the needle in the scar.

[0014] The present invention has the following beneficial effects: (1) The present invention addresses the problem of insufficient gas entering the device. When the piston rod moves upward, the liquid will be pumped out through the discharge port. When the piston rod moves downward, the liquid will be sucked in from the feed port. When the liquid enters, some gas may remain in the medicine barrel containing the liquid. When this small amount of gas enters the glass shell, when the glass shell is filled with liquid, the gas will be at the top of the liquid. At this time, the excess gas will be in the gas storage tube. When the piston rod moves upward, it will squeeze the liquid outward, and the gas will be stored and squeezed in the gas storage tube under the pressure generated by the push. When the piston rod completely overlaps with the glass shell, a small amount of liquid will be at the top of the piston rod, that is, inside the gas storage tube, and the excess gas will float on the top of the liquid and be inside the gas storage tube, avoiding the small amount of gas from being discharged directly from the discharge port through the inside of the glass shell, causing the liquid to be interrupted, or directly injecting air into the scar.

[0015] (2) When the piston rod of the present invention moves back and forth, it will continuously extract liquid from the feed port and then discharge it outward through the discharge port. When the piston rod moves downward, a negative pressure will be formed in the glass shell. When the piston rod moves downward and exceeds the feed port, the negative pressure formed will cause the spring sealing plate 2 to shrink inward, thereby opening the switch of the reverse flow valve 2 and allowing the liquid to enter the glass shell. When the piston rod moves upward, the piston rod will squeeze the internal space of the glass shell, increasing its pressure and pushing the spring sealing plate 2 to close the reverse flow valve 2. The pressure will also push the spring sealing plate to open the reverse flow valve and complete the cycle. When the piston rod moves downward, the negative pressure formed will also suck the spring sealing plate, making it more tightly closed with the reverse flow valve. Similarly, when the piston rod moves upward, the pressure generated in the glass shell will squeeze the spring sealing plate 2 and the inner wall of the reverse flow valve 2 to fit more closely, so that the liquid extracted through the reverse flow valve 2 can only stay inside the glass shell and then be discharged outward from the spring sealing plate by pushing, avoiding the phenomenon of liquid backflow when using this device.

[0016] (3) The present invention utilizes the reciprocating force of the piston column. When the piston column moves up and down, the top of the piston column is fixedly connected with a multi-layer sealing strip. When the piston column moves, the multi-layer sealing strip not only improves the sealing of the inside of the glass shell, but also because the top of the piston column is elliptical in shape in order to fit with the inside of the glass shell, and the multi-layer sealing strip arranged on the top of the piston column has a circumference that is generally longer than the inner wall diameter of the glass shell in order to improve the sealing, when the piston column moves, a space will remain between the piston column and the multi-layer sealing strip. When the piston column is pushed to the top of the glass shell and moves downward again, the multi-layer sealing strip will scrape against the inner wall of the glass shell to form a certain pressure. When it moves to the counterflow valve 2, the pressure here will push the spring sealing plate 2 in advance, and it will close firmly before contacting the space formed by the top piston column and the glass shell, avoiding the non-fluid contact of the liquid at the other end of the counterflow valve 2, thereby improving the rigor and safety of drug use.

[0017] (4) The present invention can quickly perform injection treatment on the patient's scar by directly connecting the second medical hose to the medical medicine barrel. The patient has many scars on the surface and the scars are large. Repeated syringe extraction and injection is not only time-consuming and labor-intensive, but also wastes part of the medicine to exhaust the air each time the medicine is extracted due to the small amount of gas present in the extraction process. When the device is used, the size of the patient's scar is observed, and an appropriate amount of medicine bottle is connected to the second medical hose. By reducing the frequency of extracting medicine and the number of exhaust times, the waste of medicine is avoided.

[0018] (5) The present invention starts the device, so that the driving motor drives the rotating shaft to rotate, and the rotating shaft drives the eccentric ring to rotate. When the eccentric ring rotates with the rotating shaft as the center, the metal outer ring connected to the outer wall of the eccentric ring will follow and move. The position of the metal outer ring changes in an arc with the rotating shaft as the center, driving the upper end transmission shaft to present a relative up and down motion state. When the piston column is installed on the sealing piston, the piston column moves back and forth under the drive of the sealing piston. When the piston column moves downward, the liquid enters the glass shell. When the piston column moves upward, the reverse flow valve 2 is closed, and the reverse flow valve is opened. The liquid flows out through the reverse flow valve, thereby injecting the liquid into the scar through the needle. Through the use of the flow mechanism, it is in a long-term stable flow rate and pressure injection. The person only needs to control the button on the controller when inserting the needle into the scar, and the information is transmitted back to the device through the data line to control the injection of the needle. This avoids the person's hand numbness caused by pushing too frequently during long-term manual injection, affecting the injection accuracy and causing the injection to shake and affect the surrounding normal tissues. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for describing the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 It is a schematic cross-sectional view of the overall structure of the present invention; Figure 2 It is a schematic diagram of the overall structure of the present invention; Figure 3 is a schematic diagram of a housing assembly of the present invention; Figure 4 This is a partial structural explosion diagram of the present invention; Figure 5 Schematic diagram of the transmission mechanism of the present invention; Figure 6 This is a schematic diagram of the internal component distribution of the present invention; Figure 7 For the present invention Figure 6 A is an enlarged schematic diagram; Figure 8 For the present invention Figure 6 A magnified schematic diagram of middle B; Figure 9 Schematic diagram of the workflow of the present invention.

[0021] In the accompanying drawings, the components represented by the reference numerals are as follows: In the figure: 1. Main body; 11. Main body assembly; 12. Shell assembly; 111. Main body shell; 112. Data cable; 113. Controller; 114. Needle tube; 115. Medical hose; 121. Fixing ring; 122. Glass shell; 123. Second medical hose; 124. Fixed sensor; 125. Cable plate; 126. Adjustment knob; 2. Transmission mechanism; 21. Transmission assembly; 22. Piston assembly; 211. Drive motor; 2 12. Rotating shell; 213. Rotating shaft; 214. Eccentric ring; 215. Metal outer ring; 221. Transmission shaft; 222. Sealing piston; 223. Piston column; 3. Flow mechanism; 31. Sealing assembly; 32. Flow assembly; 311. Multi-layer sealing strip; 312. Discharge port; 313. Feed port; 314. Air storage tube; 321. Backflow valve; 322. Spring sealing plate; 323. Backflow valve 2; 324. Spring sealing plate 2. DETAILED DESCRIPTION

[0022] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0023] For example 1, please refer to Figure 1 - Figure 5 The present invention is a device for injecting drugs into scars with a high-pressure syringe, comprising a main body shell 111 and further comprising: The main body 1 is provided with an installation space for providing a bracket for the installation of other components; Transmission mechanism 2, which is provided with a power source to provide mechanical power to the internal components of the device body; Flow mechanism 3, the flow mechanism 3 is provided with a liquid flow valve for controlling the flow of liquid and preventing backflow; The outer wall of the main shell 111 is fixedly connected to the glass shell 122 . The outer wall of the glass shell 122 is provided with a discharge port 312 . The outer wall of the discharge port 312 is fixedly connected to a reverse flow valve 321 . The inner wall of the main shell 111 is fixedly connected to the driving motor 211 .

[0024] The main body 1 includes: The main body component 11 is fixedly connected to the outer wall of the main body mechanism 1 and is used for performing medical injections; The outer shell component 12 is fixedly connected to the inner wall of the main body component 11 to provide installation support.

[0025] The transmission mechanism 2 includes: The transmission assembly 21 is fixedly connected to the inner wall of the main housing 111 and is used to provide basic power; The piston assembly 22 is fixedly and slidably connected to the inner wall of the housing assembly 12 and is used for reciprocating motion to cause the liquid to flow.

[0026] The mobile mechanism 3 includes: The sealing component 31 is fixedly connected to the outer wall of the piston component 22 to increase the sealing performance and prevent the liquid from flowing back; The flow component 32 is fixedly connected to the outer wall of the sealing component 31 and is used to control the switch when the liquid flows.

[0027] The main body component 11 includes a data line 112 fixedly connected to the outer wall of the main body shell 111, and the end of the data line 112 away from the main body shell 111 is fixedly connected to the controller 113, the outer wall of the controller 113 is fixedly connected to the needle tube 114, and the outer wall of the controller 113 is fixedly connected to the medical hose 115. The outer wall of the medical hose 115 is connected to the needle tube 114 through the inside of the controller 113. By directly connecting the medical hose 123 to the medical medicine barrel, the patient's scar can be quickly injected. The patient has many scars on the surface and the marks are large. Repeated syringe extraction and injection are not only time-consuming and laborious, but also when extracting the liquid medicine, due to the small amount of gas present in the extraction process, part of the medicine will be wasted to exhaust the air each time the medicine is extracted. When using this device, the size of the patient's scar is observed, and an appropriate amount of medicine bottle is connected to the medical hose 123. By reducing the frequency of extracting medicine and the number of exhaust times, waste of medicine is avoided.

[0028] For example 2, please refer to Figure 3 - Figure 8 The present invention is a device for injecting drugs into scars with a high-pressure syringe. Based on the first embodiment, the shell assembly 12 includes a fixing ring 121 fixedly connected to the outer wall of the main shell 111. The inner wall of the fixing ring 121 is fitly connected to the outer wall of the glass shell 122. The outer wall of the main shell 111 is fixedly connected to a fixed sensor 124. The outer wall of the fixed sensor 124 is fitly connected to a medical hose 123. The inner wall of the main shell 111 is fixedly connected to a cable plate 125. The outer wall of the main shell 111 is rotatably connected to an adjustment knob 126.

[0029] The transmission assembly 21 includes a rotating shaft 213 fixedly connected to the output shaft of the driving motor 211, the inner wall of the main shell 111 is fixedly connected to the rotating shell 212, the end of the rotating shaft 213 away from the driving motor 211 is rotatably connected to the inner wall of the rotating shell 212, and the outer wall of the rotating shaft 213 is fixedly connected to the metal outer ring 215.

[0030] The piston assembly 22 includes a transmission shaft 221 rotatably connected to a connecting rod on the outer wall of the metal outer ring 215, a sealing piston 222 is fixedly connected to one end of the transmission shaft 221 away from the metal outer ring 215, a piston column 223 is fixedly connected to one end of the sealing piston 222 away from the transmission shaft 221, an outer wall of the sealing piston 222 is slidably connected to a piston chamber on the inner wall of the main shell 111, and an outer wall of the piston column 223 is slidably connected to the inner wall of the glass shell 122. By utilizing the reciprocating force of the piston column 223, when the piston column 223 moves up and down, a multi-layer sealing strip 311 is fixedly connected to the top of the piston column 223. When the piston column 223 moves, the multi-layer sealing strip 311 not only improves the sealing inside the glass shell 122, but also improves the sealing performance of the glass shell 122 because the top of the piston column 223 is in contact with the glass The interior of the glass housing 122 is fitted into an elliptical shape, and the multi-layer sealing strip 311 set on the top of the piston rod 223 has a circumference that is generally longer than the inner wall diameter of the glass housing 122 to improve sealing. When the piston rod 223 moves, a space is left between the piston rod 223 and the multi-layer sealing strip 311. When the piston rod 223 pushes to the top of the glass housing 122 and then moves downward again, the multi-layer sealing strip 311 scrapes against the inner wall of the glass housing 122, generating a certain pressure. When it moves to the second reverse flow valve 323, the pressure there pushes the second spring sealing plate 324 in advance, causing it to close securely before contacting the space formed by the top piston rod 223 and the glass housing 122, thereby preventing non-fluid contact of the liquid at the other end of the second reverse flow valve 323 and improving the rigor and safety of medication.

[0031] The sealing assembly 31 includes a multi-layer sealing strip 311 fixedly connected to the end of the piston rod 223 away from the sealing piston 222. The outer wall of the glass shell 122 is provided with a feed port 313. When the piston rod 223 moves back and forth, it continuously extracts liquid from the feed port 313 and then discharges it outward through the discharge port 312. When the piston rod 223 moves downward, a negative pressure is formed in the glass shell 122. When the piston rod 223 moves downward and exceeds the feed port 313, the negative pressure formed will cause the spring sealing plate 2 324 to contract inward, thereby opening the switch of the reverse flow valve 2 323 and allowing the liquid to enter the glass shell 122. When the piston rod 223 moves upward, the piston rod 223 will squeeze the internal space of the glass shell 122. The pressure increases, pushing the spring sealing plate 324 to close the reverse flow valve 323. The pressure also pushes the spring sealing plate 322 to open the reverse flow valve 321, completing the cycle. When the piston rod 223 moves downward, the negative pressure generated will also suck the spring sealing plate 322, making the closure of the reverse flow valve 321 more compact. Similarly, when the piston rod 223 moves upward, the pressure generated in the glass shell 122 will squeeze the spring sealing plate 324 to fit more closely with the inner wall of the reverse flow valve 323, so that the liquid extracted through the reverse flow valve 323 can only stay inside the glass shell 122, and then be discharged outward from the spring sealing plate 322, thereby avoiding the phenomenon of liquid backflow when using the device. The flow component 32 includes a spring sealing plate 322 fixedly connected to the inner wall of the reverse flow valve 321, the outer wall of the feed port 313 is fixedly connected to the reverse flow valve 2 323, the inner wall of the reverse flow valve 2 323 is fixedly connected to the spring sealing plate 2 324, and the end of the reverse flow valve 2 323 away from the feed port 313 is fixedly connected to the medical hose 2 123, so that the driving motor 211 drives the rotating shaft 213 to rotate, and the rotating shaft 213 drives the eccentric ring 214 to rotate. When the eccentric ring 214 rotates with the rotating shaft 213 as the center, the metal outer ring 215 connected to the outer wall of the eccentric ring 214 will follow the movement, and the position of the metal outer ring 215 will change in an arc with the rotating shaft 213 as the center, driving the upper end transmission shaft 221 to present a relative up and down motion state. When the piston column 223 is installed in the sealing When the piston 222 is on, the piston column 223 performs reciprocating motion driven by the sealing piston 222. When the piston column 223 moves downward, the liquid enters the glass shell 122. When the piston column 223 moves upward, the reverse flow valve 323 is closed, and the reverse flow valve 321 is opened. The liquid flows outward through the reverse flow valve 321, thereby injecting the liquid into the scar through the needle tube 114. Through the use of the flow mechanism 3, it is in a long-term stable flow rate and pressure injection. When the needle tube 114 is inserted into the scar, the personnel only needs to control the button on the controller 113, and the information is transmitted back to the device through the data line 112 to control the injection of the needle tube 114, so as to avoid manual injection by the personnel due to long-term manual injection. The numbness of the hand caused by pushing too frequently will affect the injection accuracy and cause the injection to shake and affect the surrounding normal tissues.

[0032] A method for injecting drugs into scars using a high-pressure syringe comprises the following steps: S1: Install the device: Use the data cable 112 to connect the controller 113 to the main housing 111. Rotate the piston column 223 on the top of the sealing piston 222. Place the fixing ring 121 on the bottom outer wall of the glass housing 122. Then, cover the glass housing 122 on the outer wall of the piston column 223. Rotate the fixing ring 121 to fix and seal it. S2: Start the device: Turn on the power supply of the device, ensure that the piston rod 223 is firmly connected to the sealing piston 222, and move up and down under the drive of the bottom transmission mechanism 2, so that the liquid enters the glass shell 122 through the feed port 313 and is discharged from the discharge port 312. The operating power can be controlled by adjusting the adjustment knob 126; S3: Device injection: Turn on the button set on the controller 113 to first discharge the residual gas in the hose and the medicine through the needle 114, then insert the needle 114 into the scar tissue, turn on the device again to allow the medicine in the needle 114 to enter the scar, and adjust the angle of the needle 114 in the scar.

[0033] A specific application of this embodiment is: before use, some scar medicine barrels are connected to the medical hose 2123, such as glucocorticoids, fluorouracil 5-FU, botulinum toxin type A or medicines with good fluidity. This device cannot use medicines with a certain viscosity in the medicine liquid. Start the device, so that the driving motor 211 drives the rotating shaft 213 to rotate, and the rotating shaft 213 drives the eccentric ring 214 to rotate. When the eccentric ring 214 rotates with the rotating shaft 213 as the center, the metal outer ring 215 connected to the outer wall of the eccentric ring 214 will follow the movement. At this time, the position of the metal outer ring 215 changes in an arc with the rotating shaft 213 as the center, driving the upper end transmission shaft 221 to present a relative up and down motion state. When the piston column 223 is installed on the sealing piston 222, the sealing piston 222 drives the piston column 223 to reciprocate. When the activity When the piston rod 223 moves downward, the liquid enters the glass shell 122. When the piston rod 223 moves upward, the reverse flow valve 323 is closed, and the reverse flow valve 321 is opened. The liquid flows outward through the reverse flow valve 321, thereby injecting the liquid into the scar through the needle tube 114. Through the use of the flow mechanism 3, it is in a long-term stable flow rate and pressure injection. When inserting the needle tube 114 into the scar, the personnel only needs to control the button on the controller 113. The information is transmitted back to the device through the data line 112 to control the injection of the needle tube 114, so as to avoid manual injection. Due to long-term manual injection, the personnel's hands are numb due to too frequent pushes, which affects the injection accuracy and causes the injection to shake and affect the surrounding normal tissues.

[0034] When the piston rod 223 moves upward, the liquid will be pumped out through the discharge port 312, and when the piston rod 223 moves downward, the liquid will be sucked in from the feed port 313. When the liquid enters, there may be some gas remaining in the medicine barrel containing the liquid. When this small amount of gas enters the glass shell 122, when the glass shell 122 is filled with liquid, the gas will be at the top of the liquid. At this time, the excess gas will be in the gas storage tube 314. When the piston rod 223 moves upward, it will squeeze the liquid out and discharge it out, and the gas will be stored and squeezed in the gas storage tube 314 under the pressure generated by the push. When the piston rod 223 completely overlaps with the glass shell 122, a small amount of liquid will be at the top of the piston rod 223, that is, inside the gas storage tube 314, and the excess gas will float on the top of the liquid and be inside the gas storage tube 314, preventing the small amount of gas from being directly discharged from the discharge port 312 through the inside of the glass shell 122, causing the liquid to be interrupted or directly injecting air into the scar.

[0035] When the piston rod 223 moves back and forth, it will continuously extract liquid from the feed port 313 and then discharge it outward through the discharge port 312. When the piston rod 223 moves downward, a negative pressure is formed in the glass shell 122. When the piston rod 223 moves downward and exceeds the feed port 313, the negative pressure formed will cause the spring sealing plate 2 324 to contract inward, thereby opening the switch of the reverse flow valve 2 323 and allowing the liquid to enter the glass shell 122. When the piston rod 223 moves upward, the piston rod 223 will squeeze the internal space of the glass shell 122, increasing the pressure and pushing the spring sealing plate 2 324 to close the reverse flow valve 2 323. , the pressure will push the spring sealing plate 322 at the same time, so that the reverse flow valve 321 opens and the cycle is completed. When the piston rod 223 moves downward, the negative pressure formed will also suck the spring sealing plate 322, making the closure of the reverse flow valve 321 more compact. Similarly, when the piston rod 223 moves upward, the pressure generated in the glass shell 122 will squeeze the spring sealing plate 2 324 and the inner wall of the reverse flow valve 2 323 to fit more closely, so that the liquid extracted through the reverse flow valve 2 323 can only stay inside the glass shell 122, and then be discharged outward from the spring sealing plate 322, thereby avoiding the phenomenon of liquid backflow when using this device.

[0036] By utilizing the reciprocating force of the piston rod 223, when the piston rod 223 moves up and down, the top of the piston rod 223 is fixedly connected with a multi-layer sealing strip 311. When the piston rod 223 moves, the multi-layer sealing strip 311 not only improves the sealing performance of the interior of the glass shell 122, but also because the top of the piston rod 223 is elliptical in shape to fit the interior of the glass shell 122, and the multi-layer sealing strip 311 arranged on the top of the piston rod 223 has a circumference that is generally the same as the inner wall diameter of the glass shell 122 in order to improve the sealing performance, when the piston rod 223 moves, There is a space between the piston rod 223 and the multi-layer sealing strip 311. When the piston rod 223 is pushed to the top of the glass shell 122 and moves downward again, the multi-layer sealing strip 311 scrapes against the inner wall of the glass shell 122 to generate a certain pressure. When it moves to the second counterflow valve 323, the pressure here will push the second spring sealing plate 324 in advance, and it will close firmly before contacting the space formed by the top piston rod 223 and the glass shell 122, avoiding non-fluid contact of the liquid at the other end of the second counterflow valve 323, thereby improving the rigor and safety of medication.

[0037] By directly connecting the medical hose 2 123 to the medical medicine barrel, the patient's scar can be quickly injected. The patient has many scars on the surface and the marks are large. Repeated syringe extraction and injection is not only time-consuming and labor-intensive, but also when extracting the liquid medicine, due to the small amount of gas present in the extraction process, part of the medicine will be wasted each time the medicine is extracted to exhaust the air. When using this device, the size of the patient's scar is observed, and an appropriate amount of medicine bottle is connected to the medical hose 2 123. By reducing the frequency of extracting medicine and the number of exhaust times, the waste of medicine is avoided.

[0038] The piston column 223 is rotatably installed on the top of the sealing piston 222, and the fixing ring 121 is placed on the outer wall of the bottom of the glass shell 122, and then the glass shell 122 is covered on the outer wall of the piston column 223, and the fixing ring 121 is rotated to fix and seal it, and the reverse flow valve 321 is installed on the discharge port 312, and the reverse flow valve 2 323 is installed on the feed port 313. The end of the reverse flow valve 2 323 away from the feed port 313 is connected to the medical hose 2 123, and the end of the reverse flow valve 321 away from the discharge port 312 is fixedly connected to the medical hose 115. The end of the medical hose 115 away from the glass shell 122 is fixedly connected to the controller 113, and the medical hose 115 is fixedly connected to the needle tube 114 through the internal clamp of the controller 113. The other end of the medical hose 2 123 is connected to the used medicine barrel. The above components are all detachable and replaceable components, which are convenient for replacement or cleaning after use.

[0039] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to the specific embodiments described. Obviously, many modifications and variations are possible based on the content of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.

Claims

1. A device for injecting drugs into scars using a high-pressure syringe, comprising a main body shell (111), characterized in that: Also includes: A main body mechanism (1), wherein the main body mechanism (1) is provided with an installation space for providing a bracket for installing other components; A transmission mechanism (2), wherein the transmission mechanism (2) is provided with a power source to provide mechanical power to components inside the device body; A flow mechanism (3), wherein the flow mechanism (3) is provided with a liquid flow valve for controlling the flow of the liquid and preventing backflow; The outer wall of the main housing (111) is fixedly connected to a glass housing (122), a discharge port (312) is formed on the outer wall of the glass housing (122), a reverse flow valve (321) is fixedly connected to the outer wall of the discharge port (312), a drive motor (211) is fixedly connected to the inner wall of the main housing (111), and a gas storage pipe (314) is fixedly connected to the outer wall of the glass housing (122).

2. The device for injecting drugs into scars using a high-pressure syringe according to claim 1, characterized in that: The main body (1) comprises: A main body component (11), the main body component (11) is fixedly connected to the outer wall of the main body mechanism (1) and is used for performing medical injections; A shell component (12) is fixedly connected to the inner wall of the main body component (11) and is used to provide installation support.

3. The device for injecting drugs into scars using a high-pressure syringe according to claim 2, characterized in that: The transmission mechanism (2) comprises: A transmission assembly (21), the transmission assembly (21) being fixedly connected to the inner wall of the main body shell (111) and used for providing basic power; A piston assembly (22) is fixedly and slidably connected to the inner wall of the housing assembly (12) and is used for reciprocating motion to cause the liquid to flow.

4. The device for injecting drugs into scars using a high-pressure syringe according to claim 3, characterized in that: The flow mechanism (3) comprises: A sealing assembly (31), wherein the sealing assembly (31) is fixedly connected to the outer wall of the piston assembly (22) and is used to increase sealing performance and prevent liquid backflow; A flow component (32) is fixedly connected to the outer wall of the sealing component (31) and is used to control the switch when the liquid flows.

5. The device for injecting drugs into scars using a high-pressure syringe according to claim 4, characterized in that: The main body component (11) includes a data cable (112) fixedly connected to the outer wall of the main body shell (111), one end of the data cable (112) away from the main body shell (111) is fixedly connected to a controller (113), the outer wall of the controller (113) is fixedly connected to a needle tube (114), the outer wall of the controller (113) is fixedly connected to a medical hose (115), and the outer wall of the medical hose (115) is connected to the needle tube (114) through the interior of the controller (113).

6. The device for injecting drugs into scars using a high-pressure syringe according to claim 5, characterized in that: The housing assembly (12) includes a fixing ring (121) fixedly connected to the outer wall of the main housing (111), the inner wall of the fixing ring (121) is fitted and connected to the outer wall of the glass housing (122), the outer wall of the main housing (111) is fixedly connected to a fixing sensor (124), the outer wall of the fixing sensor (124) is fitted and connected to a second medical hose (123), the inner wall of the main housing (111) is fixedly connected to a cable plate (125), and the outer wall of the main housing (111) is rotatably connected to an adjusting knob (126).

7. The device for injecting drugs into scars using a high-pressure syringe according to claim 6, characterized in that: The transmission assembly (21) comprises a rotating shaft (213) fixedly connected to the output shaft of the driving motor (211); the inner wall of the main housing (111) is fixedly connected to the rotating housing (212); one end of the rotating shaft (213) away from the driving motor (211) is rotatably connected to the inner wall of the rotating housing (212); and the outer wall of the rotating shaft (213) is fixedly connected to a metal outer ring (215).

8. The device for injecting drugs into scars using a high-pressure syringe according to claim 7, characterized in that: The piston assembly (22) comprises a transmission shaft (221) rotatably connected to a connecting rod on the outer wall of the metal outer ring (215); an end of the transmission shaft (221) away from the metal outer ring (215) is fixedly connected to a sealing piston (222); an end of the sealing piston (222) away from the transmission shaft (221) is fixedly connected to a piston column (223); an outer wall of the sealing piston (222) is slidably connected to a piston chamber on the inner wall of the main housing (111); and an outer wall of the piston column (223) is slidably connected to the inner wall of the glass housing (122).

9. The device for injecting drugs into scars using a high-pressure syringe according to claim 8, characterized in that: The sealing assembly (31) includes a multi-layer sealing strip (311) fixedly connected to an end of the piston column (223) away from the sealing piston (222), and a feed port (313) is formed on the outer wall of the glass shell (122); The flow component (32) includes a spring sealing plate (322) fixedly connected to the inner wall of the reverse flow valve (321), the outer wall of the feed port (313) is fixedly connected to the reverse flow valve 2 (323), the inner wall of the reverse flow valve 2 (323) is fixedly connected to the spring sealing plate 2 (324), and the end of the reverse flow valve 2 (323) away from the feed port (313) is fixedly connected to the medical hose 2 (123).

10. A method for injecting drugs into scars using a high-pressure injector, using the device for injecting drugs into scars using a high-pressure injector as claimed in claim 9, characterized in that: The following steps are included: S1: Install the device: Use the data cable (112) to connect the controller (113) to the main housing (111), rotate the piston rod (223) to the top of the sealing piston (222), place the fixing ring (121) on the bottom outer wall of the glass housing (122), and then cover the glass housing (122) on the outer wall of the piston rod (223), and rotate the fixing ring (121) to fix and seal it; S2: Start the device: Turn on the power supply of the device, ensure that the piston rod (223) is firmly connected to the sealing piston (222), and move up and down under the drive of the bottom transmission mechanism (2), so that the liquid enters the glass shell (122) through the feed port (313) and is discharged from the discharge port (312). The operating power can be controlled by adjusting the adjustment knob (126); S3: Device injection: Turn on the button set on the controller (113) to first discharge the remaining gas in the hose and the medicine through the needle tube (114), then insert the needle tube (114) into the scar tissue, turn on the device again to allow the medicine in the needle tube (114) to enter the scar, and adjust the angle of the needle tube (114) in the scar.

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