Automatic injector for ademetionine

Abstract

The invention relates to the field of medical instruments, and discloses an automatic injector for ademetionine, which comprises an injection cylinder, a piston is slidably connected in the injection cylinder, a push rod is fixedly connected to the top of the piston, an extension plate is fixedly connected to the top of the injection cylinder, and a driving mechanism and a self-locking mechanism are arranged at the top of the extension plate. A connecting mechanism is arranged at the bottom of the injection barrel, a storage mechanism is arranged at the bottom of the extension plate, the driving mechanism comprises a rubber band, connecting rings are rotationally connected to the two ends of the rubber band, and threaded columns are rotationally connected to the outer sides of the connecting rings. Stable power is provided through the rubber bands, an ademetionine solution can be automatically injected without external force pushing, the rubber bands with different elasticity can be replaced according to the requirements of patients, the injection speed can be adjusted, it is ensured that the process is stable and controllable, and the operation burden of medical staff is relieved. Automatic injection improves the efficiency, ensures accurate injection of liquid medicine, avoids errors and discomfort in manual operation, and improves the injection precision and the comfort level of a patient.

Description

Technical Field

[0001] The present invention relates to the technical field of medical devices, in particular to an automatic injector for ademetionine. Background Art

[0002] Adenosine is an important drug widely used to treat depression, arthritis and other diseases, usually administered in the form of injection. However, the existing adenosine methionine injection relies on traditional manual syringes, which has many problems and limitations.

[0003] Traditional syringes require medical staff to manually push the push rod to inject the drug solution, and this operation method has certain risks. Since the speed and strength of the push rod are difficult to control, it may lead to inaccurate injection of the drug solution, or even cause overdose or underdose of the drug, affecting the treatment effect. In addition, the instability during the injection process can easily cause discomfort to the patient, especially when injecting more viscous drug solutions, which may increase the patient's pain and discomfort. Medical staff participate in the operation throughout the process, which increases the physical burden, and it is difficult to ensure the smooth and accurate injection of the drug solution. There is also the risk of inconvenience in needle replacement and cross-infection. Manual needle replacement is cumbersome and prone to contamination during the process, increasing the risk of cross-infection. The storage method of the needle is also unsatisfactory, and often fails to effectively prevent contamination, especially in environments such as hospitals, where there are potential risks to patient safety.

[0004] Therefore, although traditional manual syringes are widely used in clinical practice, problems such as inaccurate operation, patient discomfort, heavy burden on medical staff, inconvenient needle replacement, and unclean storage need to be urgently addressed. Summary of the invention

[0005] In view of the deficiencies of the prior art, the present invention provides an automatic injector for ademethionine, which solves the problems of difficulty in accurately controlling the injection speed, inconvenience in needle replacement and risk of needle contamination.

[0006] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic syringe for ademetionine, comprising a syringe, a piston is slidably connected inside the syringe, a push rod is fixedly connected to the top of the piston, an extension plate is fixedly connected to the top of the syringe, a driving mechanism and a self-locking mechanism are arranged on the top of the extension plate, a connecting mechanism is arranged at the bottom of the syringe, and a storage mechanism is arranged at the bottom of the extension plate;

[0007] The driving mechanism comprises a rubber band, both ends of the rubber band are rotatably connected with connecting rings, the outer side of the connecting ring is rotatably connected with a threaded column, and the threaded column is threadedly connected to the inside of the extension plate.

[0008] Preferably, the self-locking mechanism comprises two fixing rings, the bottoms of the two fixing rings are rotatably connected to the top of the extension plate and are symmetrically distributed, and a plurality of slots are provided on the outer side of the push rod.

[0009] Preferably, the connecting mechanism includes connecting tube 1 and connecting tube 2, the top of connecting tube 1 is fixedly connected to the bottom of the injection barrel, the outer side of connecting tube 1 is fixedly connected with a convex ring, connecting tube 2 is inserted into the outer side of connecting tube 1, the inner wall of connecting tube 2 is provided with a groove, the bottom of connecting tube 2 is fixedly connected with a needle, the outer side of the needle is provided with a plurality of liquid outlet holes, and the outer side of the needle is slidably connected with a soft plug.

[0010] Preferably, the storage mechanism comprises a bracket and a tray, the bracket is arranged on the outside of the syringe, the bottom of the tray is rotatably connected to the top of the bracket, and a plurality of slots are opened on the outside of the tray.

[0011] Preferably, a disc is fixedly connected to the top of the push rod, and a second clamping groove is provided on the top of the disc.

[0012] Preferably, the push rod is slidably connected inside the injection barrel, and the rubber band is clamped inside the second clamping groove.

[0013] Preferably, the outer side of the injection barrel is clamped inside the clamping groove, and the fixing ring is clamped inside one of the clamping grooves.

[0014] Preferably, a scale line is fixedly connected to the outside of the injection barrel, and the convex ring is clamped inside the groove.

[0015] Preferably, the top of the tray abuts against the bottom of the extension plate, and the bottom of the needle is a solid structure.

[0016] Preferably, the rubber band is made of a highly elastic material, which can ensure that the push rod is pushed smoothly during the injection process and control the injection speed.

[0017] The present invention provides an automatic injector for ademetionine, which has the following beneficial effects:

[0018] 1. The present invention provides stable power through the rubber band, and can automatically inject adenosylmethionine solution without external force. The elasticity of the rubber band determines the pushing speed of the push rod. The injection speed can be adjusted by replacing rubber bands of different elasticity according to the needs of the patient, ensuring that the injection process is smooth and controllable, reducing the operating burden of medical staff. The automatic injection function not only improves the efficiency of injection, but also ensures that the liquid medicine is accurately injected as needed, avoiding errors and discomfort that may occur during manual pushing.

[0019] 2. The connection mechanism of the syringe of the present invention is designed with an interference fit between the connection tube 1 and the connection tube 2, so that the needle can be easily replaced. Through the snap-on design, medical personnel only need to plug the connection tube 2 into the connection tube 1 to quickly replace needles of different models and specifications. It provides flexibility and convenience, and can select a suitable needle according to the specific situation of the patient. The replacement process does not require special tools, which greatly improves the convenience of using the syringe.

[0020] 3. The present invention uses a storage mechanism to prevent needle contamination caused by placing the syringe directly on the desktop when not in use. The rotating connection of the tray makes syringe storage more convenient, effectively reduces the risk of cross infection caused by improper operation, and ensures the safety of patients and treatment effects. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 A perspective view of the present invention;

[0022] Figure 2 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0023] Figure 3 for Figure 1 The enlarged schematic diagram of point B in the middle;

[0024] Figure 4 It is an explosion schematic diagram of the present invention;

[0025] Figure 5 for Figure 4 The enlarged schematic diagram of the center C;

[0026] Figure 6 It is a schematic diagram of a needle of the present invention;

[0027] Figure 7 for Figure 6 The enlarged schematic diagram of point D in the middle;

[0028] Figure 8 for Figure 6 Enlarged schematic diagram of point E in the middle.

[0029] Among them, 1. tray; 2. slot; 3. bracket; 4. needle; 5. scale line; 6. syringe; 7. push rod; 8. slot one; 9. slot two; 10. disc; 11. rubber band; 12. fixing ring; 13. extension plate; 14. connecting ring; 15. threaded column; 16. piston; 17. soft plug; 18. connecting tube one; 19. convex ring; 20. groove; 21. connecting tube two; 22. liquid outlet. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the specification of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. 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 creative work are within the scope of protection of the present invention.

[0031] Please see attached Figure 1 - Attachment Figure 7 The embodiment of the present invention provides an automatic injector for ademethionine, comprising an injection barrel 6, a piston 16 is slidably connected inside the injection barrel 6, a push rod 7 is fixedly connected to the top of the piston 16, an extension plate 13 is fixedly connected to the top of the injection barrel 6, a driving mechanism and a self-locking mechanism are arranged on the top of the extension plate 13, a connecting mechanism is arranged at the bottom of the injection barrel 6, and a storage mechanism is arranged at the bottom of the extension plate 13;

[0032] The driving mechanism includes a rubber band 11, and the two ends of the rubber band 11 are rotatably connected with a connecting ring 14, and the outer side of the connecting ring 14 is rotatably connected with a threaded column 15, and the threaded column 15 is threadedly connected inside the extension plate 13. The rubber band 11 is made of a highly elastic material, which can ensure that the push rod 7 is pushed smoothly during the injection process and control the injection speed. The syringe 6 is the main part for containing the liquid medicine, and the inner wall is slidably connected with a piston 16 to ensure the normal advancement of the liquid medicine during the injection process. A connecting mechanism is provided at the bottom of the syringe 6 for connecting and matching the needle 4 with the syringe 6, which is convenient for medical personnel to replace different types of needles 4 according to the patient's condition, ensuring the overall stability of the syringe and the convenience of operation. The piston 16 slides inside the syringe 6, and through the push of the push rod 7, the liquid medicine is smoothly pushed out of the syringe 6 to the needle 4, and then injected into the patient's body. The piston 16 plays a vital role in the process of liquid medicine injection. The push rod 7 is fixedly connected to the top of the piston 16 and is a key component for pushing the piston 16. The movement of the push rod 7 is powered by the driving mechanism to ensure that the liquid medicine is pushed out at a steady speed during the injection process. The extension plate 13 is fixedly connected to the top of the syringe 6, carrying and connecting the driving mechanism and the self-locking mechanism. A storage mechanism is provided at the bottom thereof, which is convenient for placing the syringe, preventing the syringe 4 from being contaminated by being directly placed on the desktop after the protective cover of the needle 4 is removed, and is convenient for the storage or use of the syringe. The driving mechanism is composed of a rubber band 11, and the two ends of the rubber band 11 are threadedly connected to the extension plate 13 through a connecting ring 14 and a threaded column 15. The rubber band 11 provides a stable power through its high elasticity, pushes the push rod 7 and moves the piston 16, thereby ensuring that the injection process of the liquid medicine is stable and controllable, and the rubber band 11 with different elasticity can also be replaced according to the actual situation of the patient to ensure the comfort of the patient during injection. Through the above design, the automatic syringe for ademetionine of the present invention can achieve the injection of ademetionine without human power to push the piston 16, and can also adapt to different patients by changing the elasticity of the rubber band 11, so that the practicability of the syringe is greatly improved, and the storage mechanism also prevents the needle 4 from being contaminated.

[0033] Please see attached Figure 2 , Figure 3 , Figure 4 and Figure 5 The self-locking mechanism includes two fixing rings 12, the bottoms of the two fixing rings 12 are rotatably connected to the top of the extension plate 13 and are symmetrically distributed. A plurality of card slots 8 are provided on the outside of the push rod 7. The fixing ring 12 is engaged with a card slot 8 to prevent the needle 4 from being completely inserted into the patient's blood vessel. The rubber band 11 is provided to push the push rod 7, which greatly ensures the safety and reliability of the syringe.

[0034] Please see attached Figure 1 - Attachment Figure 8The connection mechanism includes a connection tube 18 and a connection tube 21. The top of the connection tube 18 is fixedly connected to the bottom of the syringe 6. The outer side of the connection tube 18 is fixedly connected with a convex ring 19. The connection tube 21 is plugged into the outer side of the connection tube 18. The inner wall of the connection tube 21 is provided with a groove 20. The bottom of the connection tube 21 is fixedly connected with a needle 4. The outer side of the needle 4 is provided with a plurality of liquid outlet holes 22. The outer side of the needle 4 is slidably connected with a soft plug 17. The outer side of the syringe 6 is fixedly connected with a scale line 5. The convex ring 19 is clamped in the groove 20. The top of the push rod 7 is fixedly connected with a disk 10. The top of the disk 10 is provided with a clamping groove 29. The push rod 7 is slidably connected to the inside of the syringe 6. The rubber band 11 is clamped in the clamping groove 29. The top of the connection tube 18 is fixedly connected to the bottom of the syringe 6, which plays a role in guiding the liquid medicine in the syringe 6 to the connection tube 21. The outer side of the connecting tube 18 is fixedly connected with a convex ring 19, which is engaged with the groove 20 provided on the inner wall of the connecting tube 21, ensuring that the two are firmly connected and prevented from loosening, and also facilitating the replacement of the needle 4 by medical personnel, so as to meet the needs of different patients. On this basis, the connecting tube 21 is plugged into the outer side of the connecting tube 18, responsible for continuing to guide the liquid medicine to the needle 4, and ensuring the stable transmission of the liquid medicine by a fixed connection. The needle 4 is fixedly connected to the bottom of the connecting tube 21, and a plurality of liquid outlets 22 are provided on the outer side thereof, which are used to evenly discharge the liquid medicine from the needle 4 and inject it. The soft plug 17 is used to block the liquid outlet 22 when the syringe 6 absorbs the adenosine, so that the push rod 7 will not be pushed when the rubber band 11 is placed in the card slot 29, until the needle 4 is inserted into the patient's blood vessel, the soft plug 17 is pushed open, and the liquid outlet 22 is exposed in the patient's blood vessel, and the push rod 7 will be pushed by the rubber band 11, realizing automatic injection and saving manpower. In addition, a scale line 5 is provided on the outside of the syringe 6, so that the user can clearly observe the remaining amount of the liquid medicine in the syringe 6, thereby ensuring accurate injection of the liquid medicine.

[0035] Please see attached Figure 1 , Figure 3 , Figure 4 and Figure 5 The storage mechanism includes a bracket 3 and a tray 1. The bracket 3 is arranged on the outside of the syringe 6. The bottom of the tray 1 is rotatably connected to the top of the bracket 3. A plurality of slots 2 are provided on the outside of the tray 1. The top of the tray 1 abuts against the bottom of the extension plate 13. The bottom of the needle 4 is a solid structure. The outside of the syringe 6 is clamped in the inside of the slot 2, and the fixing ring 12 is clamped in a slot 8. The bracket 3 is used to support the tray 1, making the entire storage mechanism more stable. The rotating connection of the tray 1 makes it more convenient to take or store the syringe. The storage mechanism effectively prevents the syringe from being contaminated by placing it arbitrarily after the protective cover of the needle 4 is removed. The hollow design at the bottom of the needle 4 is to ensure that the medicine can only flow out from the liquid outlet 22, which is the key to achieving automatic injection.

[0036] Working principle: When using the automatic injector of the present invention, first push the push rod 7 to the bottom of the syringe 6. Then, immerse the needle 4 in the ademetionine solution, and pull the push rod 7. Under the action of the piston 16, the ademetionine solution is sucked into the syringe 6. At this time, move the soft plug 17 on the needle 4 to the position of the liquid outlet 22 to block it. Then, stretch and fix the rubber band 11 in the slot 2 9 on the disc 10 to ensure that the rubber band 11 will not push the push rod 7 in advance, and clamp the fixing ring 12 into the corresponding slot 1 8 to prevent the push rod 7 from accidentally starting.

[0037] Next, the needle 4 is inserted into the patient's blood vessel. As the needle 4 is inserted, the soft plug 17 is gradually squeezed open, and the liquid outlet 22 begins to be exposed. At this time, the fixing ring 12 is opened, and under the action of the rubber band 11, the push rod 7 moves slowly, driving the piston 16 forward, and injecting the ademetionine solution in the syringe 6 into the patient's body.

[0038] The automatic injector greatly simplifies the operation process of medical personnel. By using the rubber band 11 to provide a stable driving force, the stability and controllability of the injection are ensured. At the same time, according to the needs of the patients, the medical personnel can adapt to the treatment needs of different patients by replacing the rubber bands 11 with different elasticities. By removing the threaded column 15, the rubber band 11 is replaced, which increases the flexibility and applicability of the injector. The interference fit design between the connecting tube 21 and the connecting tube 1 18 facilitates the replacement of needles 4 of different sizes, further improving the convenience of use for medical personnel.

[0039] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An automatic injector for ademetionine, comprising a syringe (6), characterized in that: The injection cylinder (6) is slidably connected to a piston (16), the top of the piston (16) is fixedly connected to a push rod (7), the top of the injection cylinder (6) is fixedly connected to an extension plate (13), the top of the extension plate (13) is provided with a driving mechanism and a self-locking mechanism, the bottom of the injection cylinder (6) is provided with a connecting mechanism, and the bottom of the extension plate (13) is provided with a storage mechanism; The driving mechanism comprises a rubber band (11), both ends of which are rotatably connected to connecting rings (14), the outer side of the connecting ring (14) is rotatably connected to a threaded column (15), and the threaded column (15) is threadedly connected to the inside of the extension plate (13).

2. The automatic injector for ademethionine according to claim 1, characterized in that: The self-locking mechanism comprises two fixing rings (12), the bottoms of the two fixing rings (12) are rotatably connected to the top of the extension plate (13) and are symmetrically distributed, and a plurality of slots (8) are provided on the outer side of the push rod (7).

3. An automatic injector for ademethionine according to claim 2, characterized in that: The connecting mechanism comprises a connecting tube 1 (18) and a connecting tube 2 (21); the top of the connecting tube 1 (18) is fixedly connected to the bottom of the injection barrel (6); the outer side of the connecting tube 1 (18) is fixedly connected to a convex ring (19); the connecting tube 2 (21) is plugged into the outer side of the connecting tube 1 (18); the inner wall of the connecting tube 2 (21) is provided with a groove (20); the bottom of the connecting tube 2 (21) is fixedly connected to a needle (4); the outer side of the needle (4) is provided with a plurality of liquid outlet holes (22); and the outer side of the needle (4) is slidably connected to a soft plug (17).

4. The automatic injector for ademethionine according to claim 3, characterized in that: The storage mechanism comprises a bracket (3) and a tray (1); the bracket (3) is arranged outside the injection cylinder (6); the bottom of the tray (1) is rotatably connected to the top of the bracket (3); and a plurality of slots (2) are provided on the outside of the tray (1).

5. The automatic injector for ademethionine according to claim 2, characterized in that: A disc (10) is fixedly connected to the top of the push rod (7), and a second clamping groove (9) is provided on the top of the disc (10).

6. The automatic injector for ademethionine according to claim 5, characterized in that: The push rod (7) is slidably connected inside the injection barrel (6), and the rubber band (11) is clamped inside the second clamping groove (9).

7. The automatic injector for ademethionine according to claim 4, characterized in that: The outer side of the injection cylinder (6) is clamped inside the clamping groove (2), and the fixing ring (12) is clamped inside one of the clamping grooves (8).

8. The automatic injector for ademethionine according to claim 3, characterized in that: The outside of the injection barrel (6) is fixedly connected with a scale line (5), and the convex ring (19) is clamped inside the groove (20).

9. The automatic injector for ademethionine according to claim 4, characterized in that: The top of the tray (1) abuts against the bottom of the extension plate (13), and the bottom of the needle (4) is a solid structure.

10. The automatic injector for ademethionine according to claim 3, characterized in that: The rubber band (11) is made of a highly elastic material and can ensure that the push rod (7) is pushed smoothly during the injection process and control the injection speed.

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