A portable medical powered bolus device

Abstract

The application discloses a portable medical electric injection device, which comprises an injection mechanism, a pressing mechanism and a pushing mechanism, the pressing mechanism is arranged on the pushing mechanism, the injection mechanism is arranged on the pushing end of the pushing mechanism, the pushing mechanism is used to drive the injection mechanism to perform injection operation, and the pressing mechanism is used to drive the pushing mechanism to perform pushing operation. Through the quick fixing mechanism, stable connection is realized between the pressing mechanism and the pushing mechanism, and with the aid of the supporting rod, the positioning rod, the positioning plate and the matched pressing assembly, medical staff can quickly complete the assembly and disassembly of various components of the device, without the need of complex tools or complicated steps, so that operation time is obviously saved, and the device is especially suitable for quickly building an injection equipment in an emergency medical scene, and valuable treatment time is obtained for patients.

Description

Technical Field

[0001] This invention relates to the field of medical technology equipment, specifically a portable medical electric injection device. Background Technology

[0002] In the medical field, precise, safe, and convenient drug injection is crucial for patients' treatment outcomes and recovery. Traditional medical injection methods, such as manual syringes, can meet basic injection needs to a certain extent, but they have many limitations. The operation of manual syringes relies entirely on the experience and hand strength of medical staff, making it difficult to ensure that the force, speed, and dosage of each injection are accurate and consistent. This not only increases the workload of medical staff, but may also affect the drug injection effect due to differences in operation, and may even lead to medical risks.

[0003] With the continuous development of medical technology, electric injection devices have emerged, bringing new solutions to drug injection. Electric injection devices use motors to drive the injection of drugs, which can improve the accuracy and stability of injection to a certain extent and reduce the workload of medical staff. However, there are still some problems that need to be solved in the existing medical electric injection devices on the market.

[0004] On the one hand, regarding the ease of assembly and use of the device, some electric injection devices lack a quick and stable fixing method between the pressing mechanism and the pushing mechanism. In clinical applications, medical staff need to frequently install, disassemble, and adjust various components of the device to adapt to different treatment needs and operating scenarios. If the fixing method between the pressing mechanism and the pushing mechanism is complex or not stable enough, it will not only increase the workload and time cost for medical staff, but may also lead to loosening or displacement of components during operation, affecting the normal operation of the device and the accuracy of injection.

[0005] On the other hand, existing electric injection devices still have room for improvement in terms of the accuracy and safety of injection operations. Different injection drugs and injection scenarios have different requirements for the pressure applied, but most existing devices lack an effective force feedback mechanism, making it difficult for medical staff to accurately grasp the appropriate pressure. This may lead to insufficient pressure during injection, resulting in ineffective drug injection, or excessive pressure, causing unnecessary pain to the patient, or even causing complications. In addition, regarding the compatibility of injection institutions with different sizes of syringes, some devices cannot be flexibly adjusted to adapt to various sizes of syringes, limiting their versatility in actual clinical applications. Summary of the Invention

[0006] The purpose of this invention is to solve the above-mentioned technical problems, thereby providing a portable medical electric injection device;

[0007] To solve the above-mentioned technical problems, the present invention provides the following technical solution:

[0008] This invention provides a portable medical electric injection device.

[0009] It includes an injection mechanism, a pressing mechanism, and a pushing mechanism. The pressing mechanism is disposed on the pushing mechanism, and the injection mechanism is disposed on the pushing end of the pushing mechanism. The pushing mechanism is used to drive the injection mechanism to perform injection operations, and the pressing mechanism is used to drive the pushing mechanism to perform pushing operations.

[0010] The pressing mechanism includes a pressing handle, a bracket, and a pressing rod. The bracket is mounted on the pushing mechanism, the pressing handle is hinged to the bracket, and the pressing rod is located at the lower end of the pressing handle. Pressing down on the pressing handle causes the pressing rod to move downward.

[0011] The pushing mechanism includes a housing, a triggering mechanism, a motor, and a lead screw. The motor is disposed inside the housing. One end of the lead screw is connected to the output shaft of the motor, and the other end of the lead screw passes through one side wall of the housing and is connected to the injection mechanism. The triggering mechanism is disposed on the housing and is electrically connected to the motor. The pressing rod presses down on the triggering mechanism, thereby driving the motor to start. The motor drives the lead screw to move, thereby driving the injection mechanism to perform injection operations.

[0012] Optionally, a quick-fixing mechanism is provided between the pressing mechanism and the pushing mechanism. The quick-fixing mechanism is located at the junction of the bracket and the housing. Fixing plates are provided on the left and right sides of the bracket, and the surface of the fixing plates is in contact with the surface of the housing. A quick-connect mechanism is located between the fixing plates and the surface of the housing. The quick-connect mechanism includes a support rod, a positioning rod, and a positioning plate. One end of the support rod is fixedly connected to the side wall of the housing. Several groups of support rods are arranged in a circular pattern on the surface of the housing. One end of the positioning rod is fixed to the surface of the housing and located within the circle formed by the groups of support rods. Between the shapes, the positioning plate has a first positioning groove and a second positioning groove through it. The positioning plate is in contact with the surface of the fixing plate. The other end of the support rod extends through the first positioning groove to the left side of the positioning plate, and the other end of the positioning rod extends through the second positioning groove to the left side of the positioning plate. The support rod is provided with a first pressing mechanism, and the positioning rod is provided with a second pressing mechanism. The first pressing mechanism and the second pressing mechanism together press the positioning plate, thereby fixing the positioning plate to the surface of the fixing plate, thereby fixing the fixing plate to the surface of the housing, and thus fixing the pressing mechanism and the pushing mechanism.

[0013] Optionally, the first clamping mechanism includes a first clamping plate and a first clamping ring. The first clamping plate includes a first straight portion and a first curved portion. The first curved portion is disposed at one end of the first straight portion. A first through hole is provided through the first straight portion. The first through hole is located at the end of the first straight portion away from the first curved portion. The first straight portion is inserted into the support rod through the first through hole. The first curved portion is used to clamp the side wall of the positioning plate. The upper end of the support rod is threaded. The first clamping ring is threaded to the upper end of the support rod. Tightening the first clamping ring downwards squeezes the first straight portion, thereby causing one end of the first straight portion to converge toward the center of the positioning plate, thereby causing the first curved portion to clamp and fix the side wall of the positioning plate.

[0014] Optionally, the second clamping mechanism includes a second clamping plate, a third clamping plate, and a second clamping ring. The second clamping plate includes a second straight portion and a second curved portion. The second curved portion is disposed at one end of the second straight portion. A second through hole is provided through the second straight portion, located at the end of the second straight portion away from the second curved portion. The second straight portion is inserted into the positioning rod through the second through hole. The second curved portion is used to clamp the side wall of the positioning plate. The upper end of the positioning rod is threaded. The second clamping ring is threaded to the upper end of the positioning rod. The third clamping plate has the same structure as the second clamping plate and is inserted into the positioning rod. The second and third clamping plates together clamp the left and right side walls of the positioning plate. Tightening the second clamping ring downwards squeezes the second straight portion, thereby causing one end of the second straight portion to converge toward the center of the positioning plate, thereby causing the second curved portion to clamp and fix the side wall of the positioning plate, thus causing the second and third clamping plates to clamp and fix the left and right side walls of the positioning plate.

[0015] Optionally, the pressing handle is provided with a force feedback mechanism, which includes a force sensor, a microprocessor, and a prompting module;

[0016] The force sensor is located at the connection between the pressing handle and the pressing rod, and is used to detect the force applied by the user when pressing the pressing handle in real time. The detected force signal is transmitted to the microprocessor, which is located inside the housing. The microprocessor has a built-in force threshold database, which presets multiple force threshold ranges according to different injection drugs and injection scenarios. The microprocessor compares and analyzes the received force signal with the data in the force threshold database. The prompt module is located on the surface of the pressing handle and includes an LED indicator and a miniature vibration motor. When the microprocessor determines that the force applied by the user when pressing the pressing handle is within the appropriate force threshold range, the LED indicator displays green.

[0017] When the force is too weak, the LED indicator light turns yellow, and the miniature vibration motor provides intermittent slight vibration as a reminder.

[0018] When excessive force is applied, the LED indicator light turns red, and the miniature vibration motor provides continuous and strong vibration as a reminder, ensuring that the user can accurately control the appropriate pressure and guaranteeing the accuracy and safety of the injection operation.

[0019] Optionally, the triggering mechanism is configured as a trigger button.

[0020] Optionally, the quick-fixing mechanism is configured in at least two sets, with the two sets of quick-fixing mechanisms located on the left and right sides of the bracket, respectively.

[0021] In summary, the present invention has the following beneficial effects:

[0022] The pressing mechanism and the pushing mechanism of this application are stably connected through a quick-fixing mechanism. With the help of support rods, positioning rods, positioning plates and matching clamping components, medical staff can quickly assemble and disassemble the various parts of the device without complicated tools or cumbersome steps, which significantly saves operation time. It is especially suitable for quickly setting up injection equipment in emergency medical scenarios, giving patients valuable treatment time. The device adopts a modular design concept, with each component having independent functions and standardized interfaces, which makes it easy for medical staff to flexibly replace or adjust components according to actual needs, further improving the convenience and flexibility of operation. Attached Figure Description

[0023] Figure 1 This is a schematic diagram of the structure of the present invention.

[0024] Figure 2 This is a schematic diagram of the pressing mechanism of the present invention.

[0025] Figure 3 This is a schematic diagram of the pressing handle structure of the present invention.

[0026] Figure 4 This is an enlarged view of a portion of the support structure of the present invention.

[0027] Figure 5 This is a top view of the shell structure of the present invention.

[0028] Figure 6 This is an enlarged view of a portion of the housing structure of the present invention.

[0029] Figure 7 This is a schematic diagram of the fixing plate structure of the present invention.

[0030] Figure 8 This is a schematic diagram of the assembly structure of the first pressing plate and the positioning plate of the present invention.

[0031] Figure 9 This is a schematic diagram of the assembly structure of the second pressing plate, the third pressing plate, and the positioning plate of the present invention.

[0032] Figure 10 This is a schematic diagram of the first pressing plate structure of the present invention.

[0033] Figure 11 This is a schematic diagram of the second clamping plate structure of the present invention.

[0034] Figure 12 This is a schematic diagram of the third clamping plate structure of the present invention.

[0035] Figure 13 This is a schematic diagram illustrating the working principle of the force feedback mechanism of the present invention.

[0036] Explanation of reference numerals in the attached drawings: 1-Injection mechanism, 2-Pressing mechanism, 3-Pushing mechanism, 4-Pressing handle, 5-Bracket, 6-Pressing rod, 7-Housing, 8-Triggering mechanism, 9-Fixing plate, 10-Support rod, 11-Positioning rod, 12-Positioning plate, 13-First positioning groove, 14-Second positioning groove, 15-First pressing plate, 16-First pressing ring, 17-First straight section, 18-First curved section, 19-Second pressing plate, 20-Third pressing plate, 21-Second pressing ring, 22-Second straight section, 23-Second curved section, 24-Force sensor, 25-Microprocessor, 26-Indication module. Detailed Implementation

[0037] The technical solutions of this novel system embodiment will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0038] Example:

[0039] like Figures 1-13 As shown, the present invention provides a portable medical electric injection device.

[0040] It includes an injection mechanism 1, a pressing mechanism 2, and a pushing mechanism 3. The pressing mechanism 2 is disposed on the pushing mechanism 3, and the injection mechanism 1 is disposed on the pushing end of the pushing mechanism 3. The pushing mechanism 3 is used to drive the injection mechanism 1 to perform injection operations, and the pressing mechanism 2 is used to drive the pushing mechanism 3 to perform pushing operations.

[0041] The pressing mechanism 2 includes a pressing handle 4, a bracket 5, and a pressing rod 6. The bracket 5 is mounted on the pushing mechanism 3. The pressing handle 4 is hinged to the bracket 5. The pressing rod 6 is located at the lower end of the pressing handle 4. Pressing down on the pressing handle 4 will drive the pressing rod 6 downward.

[0042] The pushing mechanism 3 includes a housing 7, a triggering mechanism 8, a motor, and a lead screw. The motor is disposed inside the housing 7. One end of the lead screw is connected to the output shaft of the motor, and the other end of the lead screw passes through one side wall of the housing 7 and is connected to the injection mechanism 1. The triggering mechanism 8 is disposed on the housing 7 and is electrically connected to the motor. The pressing rod 6 presses the triggering mechanism 8 downward, thereby driving the motor to start. The motor drives the lead screw to move, thereby driving the injection mechanism 1 to perform injection operations.

[0043] This application combines the injection mechanism 1, the pressing mechanism 2, and the pushing mechanism 3 to form a complete and collaborative injection system. The pushing mechanism 3, as the power core, provides precise driving force to the injection mechanism 1, ensuring the stability and accuracy of the injection operation and effectively avoiding the problems of injection speed and dosage fluctuations caused by uneven force in manual injection. The pressing mechanism 2 is set on the pushing mechanism 3, and the pressing handle 4 drives the pressing rod 6 downward to trigger the operation of the pushing mechanism 3. This operation method is simple and intuitive. Medical staff only need to apply appropriate downward pressure to start the injection, which greatly reduces the difficulty of operation and improves work efficiency. It is especially suitable for the needs of rapid and accurate injection in emergency medical scenarios.

[0044] Optionally, a quick-fixing mechanism is provided between the pressing mechanism 2 and the pushing mechanism 3. The quick-fixing mechanism is located at the junction of the bracket 5 and the housing 7. Fixing plates 9 are provided on the left and right sides of the bracket 5, and the surface of the fixing plates 9 is in contact with the surface of the housing 7. The quick-connection mechanism is located between the fixing plates 9 and the surface of the housing 7. The quick-connection mechanism includes a support rod 10, a positioning rod 11, and a positioning plate 12. One end of the support rod 10 is fixedly connected to the side wall of the housing 7. The support rods 10 are arranged in several groups, and the several groups of support rods 10 are distributed in a circle on the surface of the housing 7. One end of the positioning rod 11 is fixed to the surface of the housing 7 and is located between the circles formed by the several groups of support rods 10. The positioning plate 12 has a first positioning groove 13 and a second positioning groove 14 extending through it. The positioning plate 12 is in contact with the surface of the fixing plate 9. The other end of the support rod 10 extends through the first positioning groove 13 to the left side of the positioning plate 12, and the other end of the positioning rod 11 extends through the second positioning groove 14 to the left side of the positioning plate 12. The support rod 10 is provided with a first pressing mechanism, and the positioning rod 11 is provided with a second pressing mechanism. The first pressing mechanism and the second pressing mechanism together press the positioning plate 12, thereby fixing the positioning plate 12 to the surface of the fixing plate 9, thereby fixing the fixing plate 9 to the surface of the housing 7, and thus fixing the pressing mechanism 2 and the pushing mechanism 3.

[0045] A quick-fixing mechanism is set between the pressing mechanism 2 and the pushing mechanism 3, which greatly improves the ease of assembly and structural stability of the device. The quick-fixing mechanism is located at the junction of the bracket 5 and the shell 7. Through the tight fit between the fixing plate 9 and the surface of the shell 7, as well as the synergistic effect of the support rod 10, positioning rod 11 and positioning plate 12 in the quick-connect mechanism, the pressing mechanism 2 and the pushing mechanism 3 are quickly and accurately fixed. This allows medical staff to quickly complete the assembly and disassembly of the device in clinical operations, saving valuable time. At the same time, the first pressing mechanism and the second pressing mechanism work together to apply pressure to the positioning plate 12 from multiple directions, ensuring the firmness of the connection between the pressing mechanism 2 and the pushing mechanism 3, effectively preventing loosening or displacement during use, and ensuring the smooth progress of injection operations.

[0046] Optionally, the first clamping mechanism includes a first clamping plate 15 and a first clamping ring 16. The first clamping plate 15 includes a first straight portion 17 and a first curved portion 18. The first curved portion 18 is disposed at one end of the first straight portion 17. A first through hole is provided through the first straight portion 17. The first through hole is located at the end of the first straight portion 17 away from the first curved portion 18. The first straight portion 17 is inserted into the support rod 10 through the first through hole. The first curved portion 18 is used to clamp the side wall of the positioning plate 12. The upper end of the support rod 10 is threaded. The first clamping ring 16 is threaded to the upper end of the support rod 10. Tightening the first clamping ring 16 downwards squeezes the first straight portion 17, thereby causing one end of the first straight portion 17 to converge toward the center of the positioning plate 12, thereby causing the first curved portion 18 to clamp and fix the side wall of the positioning plate 12.

[0047] The first clamping mechanism adopts a combination structure of a first clamping plate 15 and a first clamping ring 16, which realizes efficient clamping and fixing of the positioning plate 12. The first straight part 17 of the first clamping plate 15 is inserted into the support rod 10 through the first through hole, and the first curved part 18 cleverly clamps the side wall of the positioning plate 12. This structure not only ensures the stability of clamping, but also facilitates installation and disassembly. The first clamping ring 16 is threaded to the upper end of the support rod 10. By tightening downwards, it can accurately squeeze the first straight part 17, so that one end of it is folded toward the center of the positioning plate 12, thereby driving the first curved part 18 to tightly clamp and fix the side wall of the positioning plate 12. This adjustable clamping method can flexibly adjust the clamping force according to the actual situation, ensuring that the fixing effect between the positioning plate 12 and the surface of the fixing plate 9 reaches the best, and further enhancing the reliability of the connection between the pressing mechanism 2 and the pushing mechanism 3.

[0048] Optionally, the second clamping mechanism includes a second clamping plate 19, a third clamping plate 20, and a second clamping ring 21. The second clamping plate 19 includes a second straight portion 22 and a second curved portion 23. The second curved portion 23 is disposed at one end of the second straight portion 22. A second through hole is provided through the second straight portion 22, located at the end of the second straight portion 22 away from the second curved portion 23. The second straight portion 22 is inserted into the positioning rod 11 through the second through hole. The second curved portion 23 is used to clamp the side wall of the positioning plate 12. The upper end of the positioning rod 11 is threaded, and the second clamping ring 21 is threaded. The upper end of the positioning rod 11 is connected to the third clamping plate 20, which has the same structure as the second clamping plate 19 and is inserted into the positioning rod 11. The second clamping plate 19 and the third clamping plate 20 together clamp the left and right side walls of the positioning plate 12. The second clamping ring 21 is screwed down to squeeze the second straight part 22, thereby causing one end of the second straight part 22 to converge toward the center of the positioning plate 12. This causes the second curved part 23 to clamp and fix the side wall of the positioning plate 12, thereby causing the second clamping plate 19 and the third clamping plate 20 to clamp and fix the left and right side walls of the positioning plate 12.

[0049] The second clamping mechanism consists of a second clamping plate 19, a third clamping plate 20, and a second clamping ring 21, providing a more comprehensive and stable guarantee for fixing the positioning plate 12. The second clamping plate 19 and the third clamping plate 20 have the same structure and are inserted into the positioning rod 11. They can apply clamping force from both the left and right ends of the positioning plate 12 simultaneously, ensuring the stability of the positioning plate 12 in the horizontal direction. The cooperative design of the second curved part 23 and the second straight part 22, as well as the squeezing action of the second clamping ring 21 on the second straight part 22 through the threaded connection, enable the second curved part 23 to tightly clamp and fix the side wall of the positioning plate 12. At the same time, the coordinated work of the second clamping plate 19 and the third clamping plate 20 further enhances the clamping and fixing effect, effectively preventing the positioning plate 12 from shifting or loosening due to force during the injection process, and ensuring the stability of the overall structure of the device and the accuracy of the injection operation.

[0050] Optionally, the pressing handle 4 is provided with a force feedback mechanism, which includes a force sensor 24, a microprocessor 25, and a prompting module 26;

[0051] The force sensor 24 is located at the connection between the pressing handle 4 and the pressing rod 6. It is used to detect the force applied by the user when pressing the pressing handle 4 in real time and transmit the detected force signal to the microprocessor 25. The microprocessor 25 is located inside the housing 7. The microprocessor 25 has a built-in force threshold database. The force threshold database presets multiple force threshold ranges according to different injection drugs and injection scenarios. The microprocessor 25 compares and analyzes the received force signal with the data in the force threshold database. The prompt module 26 is located on the surface of the pressing handle 4. The prompt module 26 includes an LED indicator and a miniature vibration motor. When the microprocessor 25 determines that the force applied by the user when pressing the pressing handle 4 is within a suitable force threshold range, the LED indicator displays green.

[0052] When the force is too weak, the LED indicator light turns yellow, and the miniature vibration motor provides intermittent slight vibration as a reminder.

[0053] When excessive force is applied, the LED indicator light turns red, and the miniature vibration motor provides continuous and strong vibration as a reminder, ensuring that the user can accurately control the appropriate pressure and guaranteeing the accuracy and safety of the injection operation.

[0054] The force feedback mechanism significantly improves the safety and accuracy of injection operations. The force sensor 24 detects the force applied by the user when pressing the handle 4 in real time and transmits the data to the microprocessor 25. The microprocessor 25 has a built-in force threshold database that presets multiple force threshold ranges according to different injection drugs and injection scenarios, which can accurately determine whether the current pressing force is appropriate. The prompt module 26 provides users with intuitive and clear feedback information through a combination of LED indicator lights and a micro vibration motor. When the pressing force is within the appropriate range, the LED indicator light is green, indicating that the operation is correct. When the force is too weak, the yellow indicator light and intermittent slight vibration remind the user to increase the force appropriately. When the force is too strong, the red indicator light and continuous strong vibration warn the user to reduce the force in time. This real-time force feedback mechanism can help medical staff accurately grasp the appropriate pressing force, avoid injection failure or harm to patients due to improper force, and ensure the accuracy and safety of injection operations.

[0055] Optionally, the triggering mechanism 8 can be configured as a trigger button. This simplifies the operation of the device and improves its ease of use. The trigger button has clear operation markings and intuitive tactile feedback. When medical personnel press down on the handle 4, the pressing rod 6 can accurately and quickly press the trigger button, thereby starting the motor to drive the lead screw to move and realize the injection operation. This simple and direct operation method reduces the learning cost and operation difficulty for medical personnel. It is especially suitable for quickly starting injections in emergency situations, improving the efficiency and response speed of medical operations.

[0056] Optionally, at least two sets of quick-fixing mechanisms are configured, with the two sets located on the left and right sides of the support 5, respectively. This configuration further enhances the stability and reliability of the connection between the pressing mechanism 2 and the pushing mechanism 3. The two sets of quick-fixing mechanisms fix the pressing mechanism 2 from different directions, effectively dispersing various forces generated during use and preventing loosening or damage caused by excessive force on a single fixing point. The symmetrical layout design not only improves the overall structural strength of the device but also makes the connection between the pressing mechanism 2 and the pushing mechanism 3 more balanced and stable, ensuring the stability and durability of the device during long-term, high-frequency use, and providing reliable protection for clinical injection operations.

[0057] The pressing mechanism 2 and the pushing mechanism 3 of this application are stably connected through a quick-fixing mechanism. With the help of the support rod 10, positioning rod 11, positioning plate 12 and matching clamping components, medical staff can quickly assemble and disassemble the various parts of the device without complicated tools or cumbersome steps, which significantly saves operation time. It is especially suitable for quickly setting up injection equipment in emergency medical scenarios, so as to buy patients valuable treatment time. The device adopts a modular design concept, with each component having independent functions and standardized interfaces, which makes it easy for medical staff to flexibly replace or adjust the components according to actual needs, further improving the convenience and flexibility of operation.

[0058] The trigger mechanism 8 is set as an intuitive trigger button with clear operation logic. Medical staff can start the device with a simple pressing action, which lowers the operation threshold and reduces the risk of human error. It is especially suitable for non-professionals or quick operation in emergency situations. The press handle 4 is ergonomically designed with a non-slip textured surface to ensure that medical staff can hold the device comfortably and securely during long-term operation, avoiding operation errors caused by hand fatigue.

[0059] The force feedback mechanism monitors the force applied to the pressing handle 4 in real time through the force sensor 24. Combined with the force threshold database built into the microprocessor 25, it accurately determines whether the current pressing force is suitable for different drugs and scenarios. The combination of green / yellow / red LED indicator lights and a micro vibration motor provides intuitive and immediate operation guidance for medical staff, ensuring that the pressing force is always within a safe and effective range. It supports flexible adjustment of the force threshold parameters through external devices or built-in menus based on drug type, patient age, injection site, and other conditions, achieving personalized injection control and meeting diverse clinical needs.

[0060] The pushing mechanism 3 adopts a motor-driven lead screw structure. Through the coordinated movement of the high-precision motor and the lead screw, the piston's displacement within the syringe is controlled at the millimeter level, ensuring that the injection speed and dosage of the drug solution are precisely controllable and avoiding fluctuations in treatment effect caused by uneven injection speed or dosage error.

[0061] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A portable medical electric injection device, characterized in that, It includes an injection mechanism, a pressing mechanism, and a pushing mechanism. The pressing mechanism is disposed on the pushing mechanism, and the injection mechanism is disposed on the pushing end of the pushing mechanism. The pushing mechanism is used to drive the injection mechanism to perform injection operations, and the pressing mechanism is used to drive the pushing mechanism to perform pushing operations. The pressing mechanism includes a pressing handle, a bracket, and a pressing rod. The bracket is mounted on the pushing mechanism, the pressing handle is hinged to the bracket, and the pressing rod is located at the lower end of the pressing handle. Pressing down on the pressing handle causes the pressing rod to move downward. The pushing mechanism includes a housing, a triggering mechanism, a motor, and a lead screw. The motor is disposed inside the housing. One end of the lead screw is connected to the output shaft of the motor, and the other end of the lead screw passes through one side wall of the housing and is connected to the injection mechanism. The triggering mechanism is disposed on the housing and is electrically connected to the motor. The pressing rod presses down on the triggering mechanism, thereby driving the motor to turn on. The motor drives the lead screw to move, thereby driving the injection mechanism to perform injection operations. A quick-fixing mechanism is provided between the pressing mechanism and the pushing mechanism. This quick-fixing mechanism is located at the junction of the bracket and the housing. Fixing plates are provided on both sides of the bracket, and the surfaces of the fixing plates are in contact with the surface of the housing. A quick-connect mechanism is located between the fixing plates and the surface of the housing. This quick-connect mechanism includes a support rod, a positioning rod, and a positioning plate. One end of the support rod is fixedly connected to the side wall of the housing. Several groups of support rods are arranged in a circular pattern on the surface of the housing. One end of the positioning rod is fixed to the surface of the housing and located within the circle formed by the groups of support rods. The positioning plate has a first positioning groove and a second positioning groove through it. The positioning plate is in contact with the surface of the fixing plate. The other end of the support rod extends through the first positioning groove to the left side of the positioning plate, and the other end of the positioning rod extends through the second positioning groove to the left side of the positioning plate. The support rod is provided with a first pressing mechanism, and the positioning rod is provided with a second pressing mechanism. The first pressing mechanism and the second pressing mechanism together press the positioning plate, thereby fixing the positioning plate to the surface of the fixing plate, thereby fixing the fixing plate to the surface of the housing, and thus fixing the pressing mechanism and the pushing mechanism. The first clamping mechanism includes a first clamping plate and a first clamping ring. The first clamping plate includes a first straight section and a first curved section. The first curved section is disposed at one end of the first straight section. A first through hole is provided through the first straight section. The first through hole is located at the end of the first straight section away from the first curved section. The first straight section is inserted into the support rod through the first through hole. The first curved section is used to clamp the side wall of the positioning plate. The upper end of the support rod is threaded. The first clamping ring is threaded to the upper end of the support rod. Tightening the first clamping ring downwards squeezes the first straight section, thereby causing one end of the first straight section to converge toward the center of the positioning plate, thereby causing the first curved section to clamp and fix the side wall of the positioning plate. The second clamping mechanism includes a second clamping plate, a third clamping plate, and a second clamping ring. The second clamping plate includes a second straight section and a second curved section. The second curved section is located at one end of the second straight section. A second through hole is provided through the second straight section, located at the end of the second straight section away from the second curved section. The second straight section is inserted into the positioning rod through the second through hole. The second curved section is used to clamp the side wall of the positioning plate. The upper end of the positioning rod is threaded. The second clamping ring is threaded to the upper end of the positioning rod. The third clamping plate has the same structure as the second clamping plate and is inserted into the positioning rod. The second and third clamping plates together clamp the left and right side walls of the positioning plate. Tightening the second clamping ring downwards squeezes the second straight section, thereby causing one end of the second straight section to converge toward the center of the positioning plate. This causes the second curved section to clamp and fix the side wall of the positioning plate, thereby causing the second and third clamping plates to clamp and fix the left and right side walls of the positioning plate.

2. The portable medical electric injection device according to claim 1, characterized in that, The pressing handle is provided with a force feedback mechanism, which includes a force sensor, a microprocessor, and a prompting module. The force sensor is located at the connection between the pressing handle and the pressing rod, and is used to detect the force applied by the user when pressing the pressing handle in real time. The detected force signal is transmitted to the microprocessor, which is located inside the housing. The microprocessor has a built-in force threshold database, which presets multiple force threshold ranges according to different injection drugs and injection scenarios. The microprocessor compares and analyzes the received force signal with the data in the force threshold database. The prompt module is located on the surface of the pressing handle and includes an LED indicator and a miniature vibration motor. When the microprocessor determines that the force applied by the user when pressing the pressing handle is within the appropriate force threshold range, the LED indicator displays green. When the force is too weak, the LED indicator light turns yellow, and the miniature vibration motor provides intermittent slight vibration as a reminder. When excessive force is applied, the LED indicator light turns red, and the miniature vibration motor provides continuous and strong vibration as a reminder, ensuring that the user can accurately control the appropriate pressure and guaranteeing the accuracy and safety of the injection operation.

3. A portable medical electric injection device according to claim 1, characterized in that, The triggering mechanism is set as a trigger button.

4. A portable medical electric injection device according to claim 1, characterized in that, The quick-fixing mechanism is configured in at least two sets, with the two sets of quick-fixing mechanisms located on the left and right sides of the bracket, respectively.

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