Auxiliary blending device for injector

Abstract

The utility model relates to the technical field of medical equipment, in particular to an injector auxiliary blending device which comprises a base, an installation support is fixedly arranged on the upper portion of the base and connected with a motor, the motor is connected with a linear sliding rail module through a transmission mechanism, and the linear sliding rail module comprises a sliding table. The sliding table is connected with a second fixing plate through a movable connecting plate, one end of the linear sliding rail module is connected with a first fixing plate through a connecting plate, and the first fixing plate and the second fixing plate are each provided with a clamping mechanism. The clamping mechanism on the first fixing plate comprises a first upper clamping head and a first lower clamping head which are oppositely arranged, and the clamping mechanism on the second fixing plate comprises a second upper clamping head and a second lower clamping head which are oppositely arranged. The first upper chuck and the first lower chuck are in transmission connection through a clamping assembly, and the second upper chuck and the second lower chuck are in transmission connection through a clamping assembly. According to the utility model, the suction and liquid injection of medicines are realized through the power mechanism, and labor-consuming actions such as pushing and pulling are not required to be manually carried out.

Description

Technical Field

[0001] The utility model relates to the technical field of medical equipment, in particular to a syringe auxiliary dispensing device. Background Art

[0002] The infusion preparation work in various hospitals in my country is arduous. In particular, large-scale tertiary and secondary hospitals prepare tens of thousands or even tens of thousands of bags of infusion per day. The preparation personnel perform repeated operations such as injection and suction for a long time during the heavy preparation tasks, which can easily cause strain such as hand joint pain, shoulder joint pain, finger swelling, finger soreness, and lumbar disc pain. In addition, due to the internal and external pressure difference of the vial, manual suction and injection process requires a lot of effort or continuous removal of air to balance the internal and external pressure difference in order to complete the suction and injection.

[0003] Therefore, devices that assist manual drug preparation have appeared on the market, such as the Chinese patent No. 202210634895.9, which discloses a syringe auxiliary device and injection system, which is shaped like a pistol and uses the movement of the piston rod to achieve injection and suction. The above-mentioned existing structure uses gears, racks and return springs to achieve the movement of the piston rod, thereby achieving the transfer of the liquid medicine. Manual hands need to press, which does not significantly reduce manual strain, and the efficiency of its liquid medicine transfer is relatively low, and its adaptability is poor during the preparation process. Utility Model Content

[0004] The technical problem to be solved by the utility model is to overcome the defects of the prior art and provide a syringe auxiliary dispensing device.

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

[0006] A syringe auxiliary dispensing device comprises a base, a mounting bracket is fixedly arranged on the upper part of the base, the mounting bracket is connected to a motor, the motor is connected to a linear slide module through a transmission mechanism, the linear slide module comprises a slide, the slide is connected to a second fixed plate through a movable connecting plate, one end of the linear slide module is connected to a first fixed plate through a connecting plate, and a clamping mechanism is arranged on both the first fixed plate and the second fixed plate;

[0007] The clamping mechanism on the first fixed plate includes a first upper clamp and a first lower clamp that are arranged opposite to each other, and the clamping mechanism on the second fixed plate includes a second upper clamp and a second lower clamp that are arranged opposite to each other. The first upper clamp and the first lower clamp, as well as the second upper clamp and the second lower clamp are all transmission connected through a group of clamping components.

[0008] The clamping assembly includes a first rotating shaft and a second rotating shaft, the first upper chuck is rotatably connected to the first fixed plate via the first rotating shaft, the second upper chuck is rotatably connected to the second fixed plate via the first rotating shaft, the first lower chuck is rotatably connected to the first fixed plate via the second rotating shaft, the second lower chuck is rotatably connected to the second fixed plate via the second rotating shaft, the first rotating shaft is fixedly connected to the first gear, the second rotating shaft is fixedly connected to the second gear, the first gear is meshed with the second gear, and a tension spring is arranged between the first gear and the second gear.

[0009] The two ends of the tension spring are respectively connected to the end surfaces of the first gear and the second gear, and are respectively arranged away from the center of the first gear and the second gear.

[0010] The second upper clamp and the second lower clamp are both provided with limit slots, and the first upper clamp and the first lower clamp are provided with open slots.

[0011] The transmission mechanism includes a first synchronous pulley, the motor is connected to the first synchronous pulley, the first synchronous pulley is connected to the second synchronous pulley through a synchronous belt, the second synchronous pulley is connected to a linear slide module, the linear slide module includes a driving screw, the driving screw is connected to the second synchronous pulley, and the slide is threadedly connected to the driving screw.

[0012] The driving screw is arranged tilted relative to the base.

[0013] The mounting bracket is fixedly connected with a first photoelectric sensor and a second photoelectric sensor, and the first photoelectric sensor and the second photoelectric sensor are electrically connected to the control mechanism respectively;

[0014] The movable connecting plate is fixedly connected with a sensing sheet, and the sensing sheet is used to cooperate with the first photoelectric sensor and the second photoelectric sensor.

[0015] The base is fixedly connected with a housing, the housing cover is arranged outside the mounting bracket and the linear slide rail module, and the first fixing plate and the second fixing plate are arranged to pass through the outside of the housing.

[0016] A speed knob and a specification knob are respectively installed on the casing, and the speed knob and the specification knob are respectively electrically connected to the control mechanism.

[0017] The control mechanism includes a PLC and a handle. A wireless receiver is connected to the mounting bracket, and the wireless receiver is connected to the handle signal.

[0018] The beneficial effects achieved by the utility model are:

[0019] The utility model realizes the suction and injection of medicine through a power mechanism. Manual operation is no longer required to perform laborious actions such as pushing and pulling. Only a control button is required to control the device to push and pull the syringe to complete the transfer of the medicine, which greatly reduces the strain of medical staff during the preparation process.

[0020] Furthermore, the clamping mechanism of the utility model is easy to operate and only needs to be moved by hand, and can automatically return to clamp.

[0021] In addition, the utility model can achieve different suction or injection efficiencies, and can adjust the suction or injection speed according to the characteristics of different medicines. For example, medicines that are prone to foaming need to be injected and dissolved and suctioned at a low speed to prevent a large number of bubbles from being generated during the injection and suction process, resulting in incomplete suction and affecting the dosage of the medicine; for insoluble powders, it is necessary to adjust the liquid injection efficiency, and repeatedly impact the powder in the bottle and the bottle wall with liquid to loosen the powder and not hang on the wall, thereby completing the dissolution of insoluble medicines and meeting the preparation of insoluble medicines. The utility model has more advantages in the applicability and preparation efficiency of different medicines than similar products. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention and do not constitute a limitation of the present invention. In the accompanying drawings:

[0023] Figure 1 It is a schematic diagram of the structure of the utility model;

[0024] Figure 2 It is a schematic diagram of the internal structure of the utility model;

[0025] Figure 3 yes Figure 2 Left view of .

[0026] In the figure: 1. casing; 2. speed knob; 3. specification knob; 4. first fixing plate; 5. second fixing plate; 6. second upper chuck; 7. second lower chuck; 8. limit slot; 9. motor; 10. wireless receiver; 11. mounting bracket; 12. movable connecting plate; 13. slide; 14. driving screw; 15. first synchronous pulley; 16. second synchronous pulley; 17. first gear; 18. second gear; 19. base; 20. first photoelectric sensor; 21. second photoelectric sensor; 22. first rotating shaft; 23. second rotating shaft; 24. tension spring; 25. connecting plate; 26. induction sheet; 27. first upper chuck; 28. first lower chuck. DETAILED DESCRIPTION

[0027] The preferred embodiments of the present invention are described below in conjunction with the accompanying drawings. It should be understood that the preferred embodiments described herein are only used to illustrate and explain the present invention, and are not used to limit the present invention.

[0028] Example:

[0029] like Figure 1-Figure 3 As shown, a syringe-assisted preparation device includes a base 19, a mounting bracket 11 is fixedly arranged on the upper part of the base 19, the mounting bracket 11 is connected to a motor 9, and the motor 9 is connected to a linear slide module through a transmission mechanism. The linear slide module adopts the screw slide structure of the prior art, and the linear slide module includes a slide 13.

[0030] The slide 13 is connected to the second fixed plate 5 via the movable connecting plate 12 , and one end of the linear slide rail module is connected to the first fixed plate 4 via the connecting plate 25 . The first fixed plate 4 and the second fixed plate 5 are both provided with clamping mechanisms.

[0031] The clamping mechanism on the first fixed plate 4 includes a first upper clamp 27 and a first lower clamp 28 arranged opposite to each other, and the clamping mechanism on the second fixed plate 5 includes a second upper clamp 6 and a second lower clamp 7 arranged opposite to each other. The first upper clamp 27 and the first lower clamp 28, as well as the second upper clamp 6 and the second lower clamp 7 are all connected by a group of clamping components.

[0032] The clamping assembly includes a first rotating shaft 22 and a second rotating shaft 23. The first upper chuck 27 is rotatably connected to the first fixed plate 4 via the first rotating shaft 22. The second upper chuck 6 is rotatably connected to the second fixed plate 5 via the first rotating shaft 22. The first lower chuck 28 is rotatably connected to the first fixed plate 4 via the second rotating shaft 23. The second lower chuck 7 is rotatably connected to the second fixed plate 5 via the second rotating shaft 23. The first rotating shaft 22 is fixedly connected to the first gear 17. The second rotating shaft 23 is fixedly connected to the second gear 18. The first gear 17 is meshed with the second gear 18. A tension spring 24 is arranged between the first gear 17 and the second gear 18.

[0033] Taking the clamping mechanism on the second fixed plate 5 as an example, when in use, the second upper clamp 6 is manually moved, and the second lower clamp 7 can be driven to rotate in the opposite direction synchronously under the action of the meshing of the first gear 17 and the second gear 18. After the syringe push rod is inserted, the hands are released, and the two clamps return to their positions under the reaction force of the tension spring 24, and the clamping is realized. The clamping mechanisms on the first fixed plate 4 and the second fixed plate 5 are used to clamp the syringe and the push rod respectively. The slide 13 moves with the second fixed plate 5 and the clamping mechanism thereon, thereby moving the syringe push rod relative to the syringe, thereby realizing the action of suction and injection.

[0034] The two ends of the tension spring 24 are respectively connected to the end faces of the first gear 17 and the second gear 18, and are respectively arranged away from the center of the first gear 17 and the second gear 18. The first gear 17 and the second gear 18 are also provided with a limit rod to prevent rotation overshoot.

[0035] The second upper clamp 6 and the second lower clamp 7 are both provided with a limit slot 8, and the convex ring on the outer surface of the syringe push rod is clamped in the limit slot 8, so as to limit the position of the push rod. Similarly, the first upper clamp 27 and the first lower clamp 28 are also provided with a limit opening slot to limit the position of the syringe barrel.

[0036] The transmission mechanism includes a first synchronous pulley 15, the motor 9 is connected to the first synchronous pulley 15, the first synchronous pulley 15 is connected to the second synchronous pulley 16 through a synchronous belt, the second synchronous pulley 16 is connected to the linear slide module, and the linear slide module includes a driving screw 14, the driving screw 14 is connected to the second synchronous pulley 16, and the slide 13 is threadedly connected to the driving screw 14.

[0037] In the above structure, the motor 9 drives the first synchronous pulley 15 to rotate, the first synchronous pulley 15 drives the second synchronous pulley 16 to rotate through the synchronous belt, the second synchronous pulley 16 drives the driving screw 14 to rotate, and the driving screw 14 drives the slide 13 to move linearly.

[0038] The driving screw 14 is tilted relative to the base 19 to simulate manual suction operation, so as to suck out the liquid medicine at the bottom of the medicine bottle and ensure the dosage. The first fixing plate 4 and the second fixing plate 5 are vertically arranged with the driving screw 14 .

[0039] The mounting bracket 11 is fixedly connected with a first photoelectric sensor 20 and a second photoelectric sensor 21 , and the first photoelectric sensor 20 and the second photoelectric sensor 21 are electrically connected to the control mechanism respectively.

[0040] The first photoelectric sensor 20 and the second photoelectric sensor 21 are used to monitor the position of the second fixing plate 5, thereby monitoring the moving distance and speed of the syringe push rod.

[0041] The movable connecting plate 12 is fixedly connected with a sensing sheet 26, which is used to cooperate with the first photoelectric sensor 20 and the second photoelectric sensor 21. The first photoelectric sensor 20 and the second photoelectric sensor 21 detect the movable connecting plate 12 by detecting the sensing sheet 26, thereby detecting the position of the second fixed plate 5.

[0042] The first photoelectric sensor 20 and the second photoelectric sensor 21 may be disposed on the upper portion or the lower portion of the mounting bracket 11 , and the sensing sheet 26 may be disposed on the upper portion or the lower portion of the movable connecting plate 12 accordingly.

[0043] The housing 1 is respectively provided with a speed knob 2 and a specification knob 3 , and the speed knob 2 and the specification knob 3 are respectively electrically connected to the control mechanism.

[0044] At present, the specifications of syringes used in clinical prescription preparation are mostly 20mL, 30mL, and 50mL. The second fixing plate 5 can be adjusted to move to a set position by the specification knob 3 to adapt to syringes of different specifications. In addition, the three gears of fast, medium, and slow can be selected by rotating the knob, and the speed knob 2 can be used to adjust the speed of the second fixing plate 5.

[0045] The control mechanism includes a PLC and a handle.

[0046] The mounting bracket 11 is connected to a wireless receiver 10, which is connected to the handle signal. When in use, the handle is provided with a control button, and the control button is pushed left or right, and the wireless receiver 10 on the mounting bracket 11 receives the signal, and the signal is transmitted to the PLC for decoding, and the operation and action are controlled by the PLC control program.

[0047] The base 19 is fixedly connected with a housing 1, and the housing 1 is covered on the outside of the mounting bracket 11 and the linear slide rail module. The first fixing plate 4 and the second fixing plate 5 penetrate the outside of the housing 1 and are used to connect the syringe barrel and the push rod.

Claims

1. A syringe-assisted dispensing device, characterized in that: The invention comprises a base (19), a mounting bracket (11) is fixedly arranged on the upper part of the base (19), the mounting bracket (11) is connected to a motor (9), the motor (9) is connected to a linear slide rail module via a transmission mechanism, the linear slide rail module comprises a slide table (13), the slide table (13) is connected to a second fixed plate (5) via a movable connecting plate (12), one end of the linear slide rail module is connected to a first fixed plate (4) via a connecting plate (25), and a clamping mechanism is arranged on the first fixed plate (4) and the second fixed plate (5); The clamping mechanism on the first fixed plate (4) comprises a first upper clamp (27) and a first lower clamp (28) which are arranged opposite to each other, and the clamping mechanism on the second fixed plate (5) comprises a second upper clamp (6) and a second lower clamp (7) which are arranged opposite to each other, and the first upper clamp (27) and the first lower clamp (28) as well as the second upper clamp (6) and the second lower clamp (7) are all connected in transmission via a set of clamping components.

2. The syringe-assisted preparation device according to claim 1, characterized in that: The clamping assembly comprises a first rotating shaft (22) and a second rotating shaft (23); the first upper clamp (27) is rotatably connected to the first fixed plate (4) via the first rotating shaft (22); the second upper clamp (6) is rotatably connected to the second fixed plate (5) via the first rotating shaft (22); the first lower clamp (28) is rotatably connected to the first fixed plate (4) via the second rotating shaft (23); the second lower clamp (7) is rotatably connected to the second fixed plate (5) via the second rotating shaft (23); the first rotating shaft (22) is fixedly connected to a first gear (17); the second rotating shaft (23) is fixedly connected to a second gear (18); the first gear (17) is meshed with the second gear (18); a tension spring (24) is provided between the first gear (17) and the second gear (18).

3. The syringe-assisted preparation device according to claim 2, characterized in that: The two ends of the tension spring (24) are respectively connected to the end surfaces of the first gear (17) and the second gear (18), and are respectively arranged away from the center of the first gear (17) and the second gear (18).

4. The syringe-assisted preparation device according to claim 3, characterized in that: The second upper clamp (6) and the second lower clamp (7) are both provided with a limit clamping groove (8), and the first upper clamp (27) and the first lower clamp (28) are provided with an open groove.

5. The syringe-assisted preparation device according to claim 1, characterized in that: The transmission mechanism comprises a first synchronous pulley (15), a motor (9) is connected to the first synchronous pulley (15), the first synchronous pulley (15) is connected to a second synchronous pulley (16) via a synchronous belt, the second synchronous pulley (16) is connected to a linear slide module, the linear slide module comprises a driving screw (14), the driving screw (14) is connected to the second synchronous pulley (16), and the slide table (13) is threadedly connected to the driving screw.

6. The syringe-assisted preparation device according to claim 5, characterized in that: The driving screw (14) is arranged to be inclined relative to the base (19).

7. The syringe-assisted preparation device according to claim 1, characterized in that: A first photoelectric sensor (20) and a second photoelectric sensor (21) are fixedly connected to the mounting bracket (11), and the first photoelectric sensor (20) and the second photoelectric sensor (21) are electrically connected to the control mechanism respectively; The movable connecting plate (12) is fixedly connected with a sensing sheet (26), and the sensing sheet (26) is used to cooperate with the first photoelectric sensor (20) and the second photoelectric sensor (21).

8. The syringe-assisted preparation device according to claim 1, characterized in that: The base (19) is fixedly connected to a housing (1), the housing (1) is covered on the outside of the mounting bracket (11) and the linear guide rail module, and the first fixing plate (4) and the second fixing plate (5) are arranged to pass through the outside of the housing (1).

9. The syringe-assisted preparation device according to claim 8, characterized in that: A speed knob (2) and a specification knob (3) are respectively mounted on the housing (1); the speed knob (2) and the specification knob (3) are respectively electrically connected to the control mechanism.

10. The syringe-assisted preparation device according to claim 7 or 9, characterized in that: The control mechanism comprises a PLC and a handle, the mounting bracket (11) is connected to a wireless receiver (10), and the wireless receiver (10) is connected to the handle signal.

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