A painless push hemp instrument and a using method thereof

Abstract

The application provides a painless injection device and a use method thereof, and particularly relates to the technical field of medical devices, which comprises a shell, a pushing assembly provided in the shell and having a pressure detection function, and a control element provided in the shell and connected with the pushing assembly. The pushing assembly comprises a frame provided in the shell, a through-type stepping motor provided at the top of the frame, and a pressure sensor provided at the bottom of the frame and in contact with the bottom of the through-type stepping motor. The injection device integrates a starting pressure sensor injection mode and a contact pressure sensor injection mode, and can be applied to different types of patients. In the starting pressure sensor mode, the pressure limits of different stages of injection are set, and when a certain pressure detection value exceeds the preset range, the device automatically stops working. The mode can effectively avoid the pain of the anesthetic to the patient during the injection process and ensure the painless injection work.

Description

Technical Field

[0001] This invention relates to the field of medical device technology, and in particular to a painless anesthetic massage device and its usage method. Background Technology

[0002] During oral treatment, anesthesia is necessary to reduce patient discomfort. Currently, the method used is manual anesthesia, where medical staff inject anesthetic drugs into the desired area of ​​the mouth using a syringe. Due to the unique physiological structure of the oral cavity, this procedure is extremely difficult. Furthermore, manual injection is prone to instability, causing needle deflection and misalignment. Additionally, the large size of the needle causes significant pain for the patient, increasing their suffering, stress, and fear.

[0003] The current common method for administering anesthetics is for medical staff to inject the anesthetic into the oral cavity using a syringe. However, this method is not only uneven in terms of drug delivery speed, but also results in excessive injection pressure, which can cause patients to experience more pain and is therefore impractical. Summary of the Invention

[0004] To address the aforementioned problems, this invention proposes a painless anesthetic massager and its usage method to more accurately resolve these issues.

[0005] This invention is achieved through the following technical solution:

[0006] This invention proposes a painless anesthetic push device, comprising a housing, a push assembly disposed within the housing and having a pressure detection function, and a control element disposed within the housing and connected to the push assembly. The push assembly includes a frame disposed within the housing, a through-type stepper motor disposed at the top of the frame, and a pressure sensor disposed at the bottom of the frame and in contact with the bottom of the through-type stepper motor. A protective cover is disposed at the top of the frame and outside the through-type stepper motor. An anesthetic sleeve mounting port is provided at the top of the housing for mounting the anesthetic sleeve. The opening has a through hole that connects to the outer shell and allows the output end of the through-type stepper motor to pass through. The control element includes a power supply located on one side of the frame and a control unit connected to the power supply, as well as a driver located on the other side of the frame and connected to the control unit. A sleeve is engaged in the anesthetic sleeve installation opening. An injection element is connected to the top of the sleeve. A needle tip for puncturing and installing anesthetic is provided inside the sleeve. A sliding groove is provided on one side of the frame. A limiting rod is slidably connected in the sliding groove. One end of the limiting rod is connected to the output end of the through-type stepper motor.

[0007] Furthermore, the through-type stepper motor includes a motor body, a lead screw passing through the motor body, and a pressure sensor disposed at the bottom of the motor body. A top rod is provided at the top of the lead screw. An upper end cover is provided at the top of the motor body, and a lower end cover is provided at the bottom of the motor body. A first through hole is provided on the upper end cover, and a first annular body is disposed within the first through hole. The bottom of the first annular body is on the same straight line as the bottom of the upper end cover. The top of the first annular body extends upward to form a protrusion. An internal thread for installing a pre-tightening screw is provided on the inner side of the protrusion. An adjustment range is provided on the inner side of the protrusion, below the internal thread. A rotor is rotatably connected inside the motor body. A wave-shaped washer is provided between the rotor and the pre-tightening screw, and the wave-shaped washer is located within the adjustment range. A second through hole is provided at the center of the bottom end of the lower end cover. A slidingly fitted abutment is provided within the second through hole. The top of the abutment contacts the bottom of the rotor, and the bottom of the abutment contacts the top of the pressure sensor.

[0008] Furthermore, the control element of the present invention also includes a control panel and a buzzer disposed on one side of the housing, a voice broadcast module disposed inside the housing and connected to the driver, and a foot switch connected to the housing, wherein the control panel and the buzzer are connected to the driver.

[0009] Furthermore, the injection component includes a PVC tubing connected to a sleeve and a needle connected to the end of the PVC tubing.

[0010] A method for using a painless anesthetic massage device, comprising the following steps:

[0011] S1. Select the working mode, which includes enabling the pressure sensor and disabling the pressure sensor. The disabling the pressure sensor mode is suitable for patients such as children or the elderly with mucosal and mandibular block anesthesia.

[0012] S2, in the working mode with the pressure sensor enabled, simulates different counter-pressures of anesthetic during injection by using an external pressure regulating device, and sets the pressure range of the through-type stepper motor at different injection stages of anesthetic.

[0013] S3. After wiping the anesthetic to be used with alcohol and iodine, install it into the sleeve and press the anesthetic inwards. Use the needle tip inside the sleeve to puncture the sealing rubber stopper of the anesthetic bottle. Finally, install the sleeve and anesthetic into the anesthetic sleeve installation port by rotating the sleeve counterclockwise.

[0014] S4. Control the through-type stepper motor via the operation panel or foot switch, and complete the evacuation of the injection part.

[0015] S5. The injection personnel connect the injection device to the injection point by selecting the anesthesia point for the patient and the method of holding the anesthesia stick.

[0016] S6. Start the through-type stepper motor again by starting the operating panel or foot switch. The output end of the through-type stepper motor and the lead screw will drive the push rod to move upward synchronously. The anesthetic in the anesthetic bottle will be lifted through the through hole and the anesthetic in the anesthetic bottle will move into the PVC tubing and the needle to complete the injection of anesthetic.

[0017] S7. During the anesthetic injection process, the PVC tubing applies counter-pressure to the push rod. When the push rod receives counter-pressure, it applies pressure to the corrugated gasket through the pre-tightening screw. Simultaneously, as the corrugated gasket deforms under stress, the pressure exerted by the corrugated gasket on the first auxiliary shaft varies. The first auxiliary shaft transmits pressure sequentially through the main shaft, rotor, and clamping part, bringing the clamping part into contact with the pressure sensor. The pressure sensor detects the applied pressure. When the pressure detected by the pressure sensor is within the preset range for the current stage, the driver gradually controls the through-type stepper motor to transition from slow injection mode to medium-speed injection mode. During the injection process, if overpressure occurs and cannot be restored to its original state, the driver will alert the operator via a buzzer and automatically stop the machine after a three-second delay. After the equipment stops, the operator can restart it through the operating panel to restore the equipment to its original state and continue treatment for the patient.

[0018] Furthermore, in step S1, the injection modes for activating and deactivating pressure sensing detection are slow and medium speed, wherein both slow and medium speed injection modes have automatic drug delivery modes.

[0019] In the slow injection mode, the pressure sensor receives a signal with a value ranging from 0.3g to 11.5g.

[0020] Furthermore, as the anesthetic is continuously injected, the numerical limits of the signals received by the pressure sensor are different, namely 0.3-2g, 2g-5g, 5g-8.5g, and 8.5g-11.5g. When the pressure within any of these limits exceeds the maximum preset range, an overpressure warning will be issued, and the machine will stop operating after a three-second delay.

[0021] Furthermore, in step S1, the mode adjustment for activating and deactivating the pressure sensor can only be selected when the push rod is in the bottom position, and this function cannot be set after the equipment is running.

[0022] The beneficial effects of this invention are:

[0023] This painless anesthetic injection device integrates both a start-up pressure sensor injection mode and a contact pressure sensor injection mode, making it suitable for different types of patients. In the start-up pressure sensor mode, pressure limits for different stages of injection can be set. When a pressure reading exceeds the preset range, the device will automatically stop. This mode effectively avoids pain caused to the patient by the anesthetic itself during injection, ensuring painless injection. After the device stops, it can be restarted and restored to its normal state before another injection can be administered, effectively achieving painless anesthetic injection. Attached Figure Description

[0024] Figure 1 This is a schematic diagram of the overall structure of the present invention;

[0025] Figure 2 This is a schematic diagram of the connection structure between the frame, control elements, and protective cover in this invention;

[0026] Figure 3 This is a schematic diagram of the disassembled frame and protective cover structure in this invention;

[0027] Figure 4 This is a top-view schematic diagram of the disassembled frame and protective cover structure in this invention;

[0028] Figure 5 This is a schematic diagram of the disassembled structure of the through-type stepper motor in this invention;

[0029] Figure 6 This is a schematic diagram of the upper end cap structure in this invention;

[0030] Figure 7 This is a schematic diagram of the cross-sectional structure of the through-type stepper motor in this invention;

[0031] Figure 8 This is a schematic diagram of the sleeve structure in this invention.

[0032] In the diagram, 1. Outer shell; 11. Anesthetic sleeve mounting port; 12. Through hole; 13. Sleeve; 14. Needle tip; 15. Injection component; 151. PVC tubing; 152. Needle; 2. Pushing assembly; 21. Frame; 211. Slide groove; 212. Limiting rod; 22. Through-type stepper motor; 221. Motor body; 222. Lead screw; 223. Push rod; 224. Upper end cover; 2241. First through hole; 2242. First annular body; 2243. Internal thread; 225. Lower end cover; 2251. Second through hole; 2252. Clamping part; 226. Preload screw; 227. Rotor component; 228. Waveform gasket; 23. Pressure sensor; 3. Control element; 31. Power supply; 32. Driver; 33. Operation panel; 34. Foot switch; 4. Protective cover. Detailed Implementation

[0033] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, a clear and complete description will be provided below in conjunction with the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the protection scope of the present invention.

[0034] Example

[0035] refer to Figure 1-8 A painless anesthetic push device includes a housing 1, a push assembly 2 disposed within the housing 1 and having a pressure detection function, and a control element 3 disposed within the housing 1 and connected to the push assembly 2. The push assembly 2 includes a frame 21 disposed within the housing 1, a through-type stepper motor 22 disposed at the top of the frame 21, and a pressure sensor 23 disposed at the bottom of the frame 21 and in contact with the bottom of the through-type stepper motor 22. A protective cover 4 is disposed at the top of the frame 21 and outside the through-type stepper motor 22. An anesthetic sleeve mounting port 11 is provided at the top of the housing 1, and the anesthetic sleeve mounting port 11 has a connection to the... The housing includes a through hole 12 for the output end of the through-type stepper motor 22 to pass through. The control element 3 includes a power supply 31 located on one side of the frame 21 and a control unit connected to the power supply 31, and a driver 32 located on the other side of the frame 21 and connected to the control unit. A sleeve 13 is engaged in the anesthetic sleeve installation port 11. An injection element 15 is connected to the top of the sleeve 13. A needle tip 14 for puncturing and installing anesthetic is provided inside the sleeve 13. A sliding groove 211 is provided on one side of the frame 21. A limiting rod 212 is slidably connected in the sliding groove 211. One end of the limiting rod 212 is connected to the output end of the through-type stepper motor 22.

[0036] First, the staff places the anesthetic to be injected into the sleeve 13 and connects the sleeve 13 to the anesthetic sleeve installation port 11. Then, the control element 3 starts the through stepper motor 22 and moves the output end of the through stepper motor 22 upward to lift the anesthetic, so that the anesthetic enters the human oral cavity through the injection part 15.

[0037] like Figures 3-7 As shown, the through-type stepper motor 22 includes a motor body 221, a lead screw 222 penetrating the motor body 221, and a pressure sensor 23 disposed at the bottom of the motor body 221. A top rod 223 is disposed at the top of the lead screw 222. An upper end cover 224 is disposed at the top of the motor body 221, and a lower end cover 225 is disposed at the bottom of the motor body 221. A first through hole 2241 is formed on the upper end cover 224, and a first annular body 2242 is disposed within the first through hole 2241. The bottom of the first annular body 2242 is on the same straight line as the bottom of the upper end cover 224, and the top of the first annular body 2242 extends upward to form a protrusion. An internal thread 2243 for installing a pre-tightening screw 226 is provided on the inner side of the protrusion. An adjustment range is provided on the inner side of the protrusion and below the internal thread 2243. A rotor 227 is rotatably connected inside the motor body 221. A wave-shaped washer 228 is provided between the rotor 227 and the pre-tightening screw 226. The wave-shaped washer 228 is located within the adjustment range. A second through hole 2251 is provided at the center of the bottom end of the lower end cover 225. A pressing part 2252 is slidably fitted inside the second through hole 2251. The top of the pressing part 2252 contacts the bottom of the rotor 227, and the bottom of the pressing part 2252 contacts the top of the pressure sensor 23.

[0038] In this embodiment, the existence of the adjustment range can provide a basis for the deformation of the waveform pad 228, thereby ensuring the transmission of back pressure.

[0039] In this embodiment, the control element 3 further includes a control panel and a buzzer disposed on one side of the housing 1, a voice broadcast module disposed inside the housing 1 and connected to the driver 32, and a foot switch 34 connected to the housing 1. The control panel and the buzzer are connected to the driver 32. The operation panel 33 consists of a start switch, a start switch indicator light, a selector switch, a selector switch indicator light, an overpressure indicator light, a liquid level indicator light, a working status switch, a backflow indicator light, a volume adjustment key, and a power indicator light.

[0040] Furthermore, the injection component 15 includes a PVC hose 151 connected to the sleeve 13 and a needle 152 connected to the end of the PVC hose 151.

[0041] A method for using a painless anesthetic massage device, comprising the following steps:

[0042] S1. Select the working mode, which includes enabling pressure sensor 23 and deactivating pressure sensor 23. The deactivating pressure sensor 23 mode is suitable for patients such as children or the elderly with mucosal and mandibular block anesthesia.

[0043] S2, in the working mode of enabling pressure sensor 23, the external pressure regulating device is used to simulate different counter pressures of anesthetic during injection, and the pressure range of through stepper motor 22 in different stages of anesthetic injection is set.

[0044] S3. After wiping the anesthetic to be used with alcohol and iodine, install it into the sleeve 13 and press the anesthetic inward. Use the needle tip 14 inside the sleeve 13 to puncture the sealing rubber stopper of the anesthetic bottle. Finally, install the sleeve 13 and the anesthetic into the anesthetic sleeve installation port 11 by rotating the sleeve 13 counterclockwise.

[0045] S4. Control the through-type stepper motor 22 via the operation panel 33 or foot switch 34, and complete the evacuation of the injection part 15.

[0046] S5. The injection personnel connect the injection device 15 to the injection point by selecting the anesthesia point for the patient and the method of holding the anesthesia stick.

[0047] S6. Start the through-type stepper motor 22 again by starting the operating panel or foot switch 34. The output end of the through-type stepper motor 22 and the lead screw 222 will drive the push rod 223 to move upward synchronously. The anesthetic in the anesthetic bottle will be lifted through the through hole 12 and the anesthetic in the anesthetic bottle will move into the PVC tube 151 and the needle 152 to complete the injection of anesthetic.

[0048] S7. During the anesthetic injection process, the PVC tubing 151 applies counter-pressure to the push rod 223. When the push rod 223 receives counter-pressure, it applies pressure to the corrugated washer 228 via the pre-tightening screw 226. Simultaneously, as the corrugated washer 228 deforms under pressure, the pressure exerted by the corrugated washer 228 on the first auxiliary shaft varies. The first auxiliary shaft transmits pressure sequentially through the main shaft, rotor, and clamping part 2252, bringing the clamping part 2252 into contact with the pressure sensor 23. The pressure sensor 23 then detects the applied pressure. During the testing process, when the pressure detected by the pressure sensor 23 is within the preset range for the current stage, the driver 32 will gradually control the through-type stepper motor 22 to switch from slow injection mode to medium injection mode. During the injection process, if the pressure becomes too high and cannot be restored to the original state, the driver 32 will prompt the operator through a buzzer and automatically enter the shutdown state after a three-second delay. After the equipment stops, the operator can restart the equipment through the operating panel to restore it to the original state and continue to treat the patient.

[0049] Furthermore, in step S1, the injection modes for activating and deactivating pressure sensing detection are slow and medium speed, wherein both slow and medium speed injection modes have automatic drug delivery modes.

[0050] In the slow injection mode, the pressure sensor 23 receives a signal feedback value ranging from 0.3g to 11.5g.

[0051] Furthermore, as the anesthetic is continuously injected, the numerical limits of the signals received by the pressure sensor 23 are different, namely 0.3-2g, 2g-5g, 5g-8.5g, and 8.5g-11.5g. When the pressure within any limit exceeds the maximum preset range, an overpressure warning will be issued, and the machine will stop working after a three-second delay.

[0052] Furthermore, in step S1, the mode adjustment of activating and deactivating the pressure sensor 23 can only be selected when the push rod 223 is in the bottom position, and this function cannot be set after the equipment is running.

[0053] It should be noted that this invention only protects the mechanical parts; the functions implemented by the software control part are not within the scope of protection of this invention.

[0054] Of course, the present invention may have many other embodiments. Based on this embodiment, other embodiments obtained by those skilled in the art without any creative effort are all within the scope of protection of the present invention.

Claims

1. A painless anesthetic massage device, characterized in that, The device includes a housing, a push assembly disposed within the housing and having a pressure detection function, and a control element disposed within the housing and connected to the push assembly. The push assembly includes a frame disposed within the housing, a through-type stepper motor disposed at the top of the frame, and a pressure sensor disposed at the bottom of the frame and in contact with the bottom of the through-type stepper motor. A protective cover is disposed at the top of the frame and outside the through-type stepper motor. An anesthetic sleeve mounting port is provided at the top of the housing, and a connecting section is provided on the anesthetic sleeve mounting port. The housing includes a through hole for the output end of the through-type stepper motor to pass through. The control element includes a power supply located on one side of the frame and a control unit connected to the power supply, as well as a driver located on the other side of the frame and connected to the control unit. A sleeve is engaged in the anesthetic sleeve installation port. An injection element is connected to the top of the sleeve. A needle tip for puncturing and installing anesthetic is provided inside the sleeve. A sliding groove is provided on one side of the frame. A limiting rod is slidably connected in the sliding groove. One end of the limiting rod is connected to the output end of the through-type stepper motor.

2. The painless anesthetic massage device according to claim 1, characterized in that, The through-type stepper motor includes a motor body, a lead screw passing through the motor body, and a pressure sensor disposed at the bottom of the motor body. A top rod is provided at the top of the lead screw. An upper end cover is provided at the top of the motor body, and a lower end cover is provided at the bottom of the motor body. A first through hole is provided on the upper end cover, and a first annular body is disposed within the first through hole. The bottom of the first annular body is on the same straight line as the bottom of the upper end cover. The top of the first annular body extends upward to form a protrusion. An internal thread for installing a pre-tightening screw is provided on the inner side of the protrusion. An adjustment range is provided on the inner side of the protrusion, below the internal thread. A rotor is rotatably connected inside the motor body. A wave-shaped washer is provided between the rotor and the pre-tightening screw, and the wave-shaped washer is located within the adjustment range. A second through hole is provided at the center of the bottom end of the lower end cover, and a slidingly fitting abutting part is provided within the second through hole. The top of the abutting part contacts the bottom of the rotor, and the bottom of the abutting part contacts the top of the pressure sensor.

3. The painless anesthetic massage device according to claim 1, characterized in that, The control element also includes a control panel and a buzzer disposed on one side of the housing, a voice broadcast module disposed inside the housing and connected to the driver, and a foot switch connected to the housing. The control panel and the buzzer are connected to the driver.

4. The painless anesthetic massage device according to claim 1, characterized in that, The injection device includes a PVC hose connected to a sleeve and a needle connected to the end of the PVC hose.

5. A method of using a painless anesthetic massager, characterized in that, A painless anesthetic device using any one of claims 1-4 includes the following steps: S1. Select the working mode, which includes enabling the pressure sensor and disabling the pressure sensor. The disabling the pressure sensor mode is suitable for patients such as children or the elderly with mucosal and mandibular block anesthesia. S2, in the working mode with the pressure sensor enabled, simulates different counter-pressures of anesthetic during injection by using an external pressure regulating device, and sets the pressure range of the through-type stepper motor at different injection stages of anesthetic. S3. After wiping the anesthetic to be used with alcohol and iodine, install it into the sleeve and press the anesthetic inwards. Use the needle tip inside the sleeve to puncture the sealing rubber stopper of the anesthetic bottle. Finally, install the sleeve and anesthetic into the anesthetic sleeve installation port by rotating the sleeve counterclockwise. S4. Control the through-type stepper motor via the operation panel or foot switch, and complete the evacuation of the injection part. S5. The injection personnel connect the injection device to the injection point by selecting the anesthesia point for the patient and the method of holding the anesthesia stick. S6. Start the through-type stepper motor again by starting the operating panel or foot switch. The output end of the through-type stepper motor and the lead screw will drive the push rod to move upward synchronously. The anesthetic in the anesthetic bottle will be lifted through the through hole and the anesthetic in the anesthetic bottle will move into the PVC tubing and the needle to complete the injection of anesthetic. S7. During the anesthetic injection process, the PVC tubing applies counter-pressure to the push rod. When the push rod receives counter-pressure, it applies pressure to the corrugated gasket through the pre-tightening screw. Simultaneously, as the corrugated gasket deforms under stress, the pressure exerted by the corrugated gasket differs from that on the first auxiliary shaft. The first auxiliary shaft transmits pressure sequentially through the main shaft, rotor, and clamping part, bringing the clamping part into contact with the pressure sensor. The pressure sensor detects the applied pressure. When the pressure detected by the pressure sensor is within the preset range for the current stage, the driver gradually controls the through-type stepper motor to transition from slow injection to medium-speed injection mode. During the injection process, if overpressure occurs and cannot be restored to its original state, the driver will alert the operator via a buzzer and automatically stop the machine after a three-second delay. After the equipment stops, the operator can restart it through the operating panel to restore the equipment to its original state and continue treatment for the patient.

6. The method of using a painless anesthetic massager according to claim 5, characterized in that, In step S1, the injection modes for activating and deactivating pressure sensing detection are slow and medium speed, both of which have an automatic drug delivery mode. In the slow injection mode, the pressure sensor receives a signal with a value ranging from 0.3g to 11.5g.

7. The method of using a painless anesthetic massager according to claim 5, characterized in that, As the anesthetic is continuously injected, the numerical limits of the signals received by the pressure sensor are different. The numerical limits are 0.3-2g, 2g-5g, 5g-8.5g, and 8.5g-11.5g. If the pressure exceeds the maximum preset range within any of these limits, an overpressure warning will be issued, and the machine will stop working after a three-second delay.

8. The method of using a painless anesthetic massager according to claim 4, characterized in that, In step S1, the mode adjustment for activating and deactivating the pressure sensor can only be selected when the push rod is in the bottom position, and this function cannot be set after the equipment is running.

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