Automatic liquid pumping device suitable for syringe needle cylinders of different specifications

By designing an automatic liquid extraction device, using the lifting mechanism and elastic parts to adapt to syringes of different specifications, the problems of large resistance and inconvenience in the syringe extraction of the syringe with one hand are solved, and efficient and accurate automatic liquid extraction is achieved, reducing the burden on medical staff.

CN222899716UActive Publication Date: 2025-05-27THE FIRST AFFILIATED HOSPITAL OF SHANTOU UNIV MEDICAL COLLEGE
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Patent Information

Application Number
CN202421649184.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-07-12
Publication Date
2025-05-27
Estimated Expiration
2034-07-12

AI Technical Summary

Technical Problem

The resistance of the syringe extraction syringe with one hand is large, the operation is inconvenient, and the liquid extraction speed is slow, which is too burdened by medical workers' hands.

Method used

An automatic liquid extraction device is designed, including a support frame, lifting mechanism, piston handle buckle and hook-hook telescopic buckle. The lifting rod is driven by the motor drive gear, and the piston rod and syringe are automatically lifted and lowered, and elastic parts are used to adapt to syringes of different specifications.

Benefits of technology

It realizes automatic liquid extraction of the syringe syringe, accurately controls the dose extraction, improves the speed and accuracy of liquid extraction, and reduces occupational strain for medical staff.

✦ Generated by Eureka AI based on patent content.

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Abstract

An automatic liquid pumping device suitable for syringe needle cylinders of different specifications comprises a supporting frame, a piston handle buckle is installed on one side of the supporting frame in a sliding mode through a lifting mechanism, and the piston handle buckle is matched with a piston rod of a syringe; a hooking telescopic buckle is slidably mounted on one side of the supporting frame through a fixing piece and is matched with a needle cylinder of the injector; the piston rod is installed in the piston rod clamping groove, the needle cylinder is installed in the needle cylinder clamping groove, the first elastic piece and the second elastic piece which are made of compressible rubber materials are arranged, and therefore the syringe needle cylinder fixing device is suitable for syringe needle cylinders of different specifications. The motor drives and controls the lifting height of the lifting rod through the first gear and the second gear, the lifting rod drives the piston rod to ascend and descend through the piston handle buckle, then automatic liquid extraction of the syringe needle cylinder is completed, the dosage needed by extraction can be accurately controlled, the liquid extraction speed and accuracy are improved, and occupational strain of medical staff is relieved.
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Description

Technical Field

[0001] The utility model relates to the technical field of medical auxiliary equipment, in particular to an automatic liquid extraction device applicable to syringe barrels of different specifications. Background Art

[0002] With the rapid development of technology, syringes have been widely used in the medical field. Medical staff use syringes to inject drugs into patients to achieve the effect of treating diseases. A syringe consists of a barrel and a piston rod (pusher), and piston rod lugs are provided on both sides of the top of the piston rod, and barrel lugs are provided on both sides of the top of the barrel. The provided lugs facilitate the medical staff to grasp when using the syringe needle tube.

[0003] Especially in clinical practice, medical workers often need to use the syringe barrel to extract liquid medicine for injection. The resistance of extracting the syringe barrel with one hand is very large, which is not only inconvenient to operate, but also has a slow liquid extraction speed, and causes too much burden on the hands of medical workers. Summary of the Utility Model

[0004] In view of the above situation, to overcome the defects of the prior art, the purpose of the utility model is to provide an automatic liquid extraction device applicable to syringe barrels of different specifications, which effectively solves the problems of very large resistance to extracting the syringe barrel with one hand, inconvenient operation, slow liquid extraction speed, and too much burden on the hands of medical workers.

[0005] The technical solution it adopts is that an automatic liquid extraction device applicable to syringe barrels of different specifications includes a support frame. One side of the support frame is slidably installed with a piston handle buckle through a lifting mechanism. The piston handle buckle is matched with the piston rod of the syringe, and two first elastic members matched with the piston rod are further arranged inside the piston handle buckle;

[0006] One side of the support frame is slidably installed with a hook telescopic buckle through a fixing member. The hook telescopic buckle is matched with the syringe barrel, and two second elastic members matched with the syringe barrel are further arranged inside the hook telescopic buckle.

[0007] Preferably, the lifting mechanism includes a lifting rod. A lifting card slot is opened on one side of the support frame. The lifting rod is slidably installed in the lifting card slot. The piston handle buckle is installed on one side of the lifting rod. Teeth are arranged on one side of the lifting rod. A first gear is rotatably installed inside the support frame. The first gear meshes with the teeth arranged on one side of the lifting rod. A second gear meshing with the first gear is rotatably installed inside the support frame. A motor is installed inside the support frame. The output end of the motor is connected to the second gear.

[0008] Preferably, a scale is installed on one side of the support frame.

[0009] Preferably, the fixing component includes a bolt. A positioning plate is arranged on one side of the hook-and-hook telescopic buckle. The positioning plate is slidably mounted on one side of the support frame. The bolt is installed through the positioning plate, and one side of the bolt is threadedly mounted on one side of the support frame.

[0010] Preferably, a piston rod slot is formed on one side of the piston handle buckle. The two first elastic members are respectively arranged on the groove walls on both sides of the piston rod slot. The piston rod is clamped between the two first elastic members. A piston rod hanging ear is arranged at the top of the piston rod. A piston ear slot is formed on one side of the piston handle buckle. The piston rod hanging ear is clamped in the piston ear slot.

[0011] Preferably, a barrel slot is formed on one side of the hook-and-hook telescopic buckle. The two second elastic members are respectively arranged on the groove walls on both sides of the barrel slot. The syringe barrel is clamped between the two second elastic members. A syringe barrel hanging ear is arranged at the top of the syringe barrel. A hanging ear slot is formed on one side of the hook-and-hook telescopic buckle. The syringe barrel hanging ear is clamped in the hanging ear slot.

[0012] Preferably, both the first elastic member and the second elastic member are rubber blocks.

[0013] Preferably, a programming circuit board is installed inside the support frame. An electronic touch screen is installed on the top of the support frame. A switch button is installed on one side of the support frame. A battery is installed at the inner bottom end of the support frame. The programming circuit board, the electronic touch screen, the switch button, the motor and the battery are electrically connected to each other.

[0014] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0015] In the present utility model, the piston rod is installed in the piston rod slot, and the syringe barrel is installed in the syringe barrel slot. By providing two compressible rubber materials, namely the first elastic member and the second elastic member, it is applicable to syringe barrels of different specifications. Through program setting, the motor drives and controls the lifting height of the lifting rod through the first gear and the second gear. The lifting rod drives the piston rod to lift through the piston handle buckle, thereby completing the automatic liquid extraction of the syringe barrel. It can accurately control the size of the required dose for extraction, improve the liquid extraction speed and accuracy, and reduce the occupational fatigue of medical staff. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 is a schematic structural diagram of the first perspective of the automatic liquid extraction device for syringe barrels of different specifications of the present utility model.

[0017] Figure 2 is the present utility model Figure 1 The enlarged schematic diagram at A in.

[0018] Figure 3It is a side view of the piston handle buckle and the hook-and-hang telescopic buckle of the present utility model.

[0019] Figure 4 It is a schematic structural diagram of the positioning plate and the bolt of the present utility model.

[0020] Explanation of the reference numerals in the schematic diagram:

[0021] 1. Support frame; 11. Lifting card slot;

[0022] 2. Piston handle buckle; 21. Piston rod card slot; 22. Piston ear card slot; 23. First elastic member;

[0023] 3. Hook-and-hang telescopic buckle; 31. Tube barrel card slot; 32. Hanging ear card slot; 33. Second elastic member;

[0024] 4. Lifting rod; 41. Teeth; 42. First gear; 43. Second gear; 45. Battery;

[0025] 5. Scale;

[0026] 6. Positioning plate; 61. Bolt;

[0027] 7. Programming circuit board; 71. Electronic touch screen; 72. Switch button;

[0028] 8. Piston rod; 81. Piston rod hanging ear;

[0029] 9. Syringe barrel; 91. Syringe barrel hanging ear. Detailed implementation manners

[0030] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.

[0031] Provided by Figures 1 to 2 There is an automatic liquid extraction device for syringe barrels of different specifications, including a support frame 1, a lifting mechanism, a piston handle buckle 2, a piston rod card slot 21, a first elastic member 23, a piston rod 8, a piston ear card slot 22, a piston rod hanging ear 81, a hook-and-hang telescopic buckle 3, a fixing member, a syringe barrel card slot 31, a second elastic member 33, a syringe barrel 9, a hanging ear card slot 32, and a syringe barrel hanging ear 91.

[0032] First, the piston handle buckle 2 is installed on the support frame 1 through a lifting mechanism. The hook-and-hang telescopic buckle 3 is slidably installed on the support frame 1 through a fixing member. The piston rod 8 is installed on the piston handle buckle 2, and the syringe barrel 9 is installed on the hook-and-hang telescopic buckle 3. The piston rod 8 is slidably installed inside the syringe barrel 9. Under the action of the lifting mechanism, the piston handle buckle 2 drives the piston rod 8 to rise, thereby sucking the liquid into the syringe barrel 9. The piston rod 8 and the syringe barrel 9 form a syringe barrel.

[0033] given by Figures 2 to 3 Specifically, the piston rod slot 21 is opened on one side of the piston handle buckle 2. There are two first elastic members 23, and the two first elastic members 23 are respectively installed on the inner groove walls on both inner sides of the piston rod slot 21. The piston rod 8 is clamped between the two first elastic members 23. The piston ear slot 22 is opened on one side of the piston handle buckle 2. The piston rod hanging ear 81 is arranged at the top of the piston rod 8, and the piston rod hanging ear 81 is clamped in the piston ear slot 22. More specifically, the two first elastic members 23 are made of rubber material and have elastic compressibility, which is convenient for inserting piston rods 8 of different specifications into the piston rod slot 21, and the upper and lower groove walls of the piston ear slot 22 respectively abut and limit and fix the top and bottom of the piston rod hanging ear 81.

[0034] More specifically, the syringe barrel slot 31 is opened on one side of the hook-and-hang telescopic buckle 3. There are two second elastic members 33, and the two second elastic members 33 are respectively installed on the inner groove walls on both sides of the syringe barrel slot 31. The syringe barrel 9 is clamped between the two second elastic members 33. The hanging ear slot 32 is opened on one side of the syringe barrel slot 31. The syringe barrel hanging ear 91 is arranged at the top of the syringe barrel 9, and the syringe barrel hanging ear 91 is clamped in the hanging ear slot 32. Specifically, the second elastic member 33 is also made of rubber material and has elastic compressibility, which is convenient for inserting syringe barrels 9 of different specifications into the syringe barrel slot 31, and the upper and lower groove walls of the hanging ear slot 32 respectively abut and limit and fix the top and bottom of the syringe barrel hanging ear 91.

[0035] given by Figures 1 to 3Given, secondly, more specifically, the lifting mechanism is installed inside the support frame 1. The lifting mechanism includes a lifting rod 4, a lifting card slot 11, teeth 41, a first gear 42, a second gear 43, a motor, and a battery 45. Specifically, the lifting card slot 11 is opened on one side of the support frame 1. The lifting rod 4 is slidably installed in the lifting card slot 11, and the piston handle buckle 2 is installed on one side of the lifting rod 4. The teeth 41 are provided on one side of the lifting rod 4. The first gear 42 and the second gear 43 are both rotatably installed inside the support frame 1, and the first gear 42 meshes with the teeth 41, and the second gear 43 meshes with the first gear 42. The motor is installed in the support frame 1, and the output end of the motor is connected to the second gear 43. More specifically, the motor drives the second gear 43 to rotate, the second gear 43 drives the first gear 42 to rotate, and the first gear 42 drives the lifting rod 4 to lift in the lifting card slot 11 through the teeth 41, and the piston handle buckle 2 rises following the lifting rod 4.

[0036] Further improved, the battery 45 is installed at the inner bottom end of the support frame 1. The battery 45 is electrically connected to the motor. A programming circuit board 7 is installed inside the support frame 1. An electronic touch screen 71 is installed at the top of the support frame 1. A switch button 72 is installed on one side of the support frame 1. The programming circuit board 7, the electronic touch screen 71, the switch button 72, the motor, and the battery 45 are electrically connected to each other. The battery 45 provides power for the motor, and the battery 45 is rechargeable. By clicking on the touch screen, the program can be set, and then the number of turns of the motor rotation can be controlled through the programming circuit board 7. The switch button 72 controls the start of the motor.

[0037] Given by Figures 3 to 4 Given, also, the fixing component includes a bolt 61 and a positioning plate 6. The positioning plate 6 is provided on one side of the hook telescopic buckle 3. The positioning plate 6 is slidably installed on one side of the support frame 1. The bolt 61 is installed through the positioning plate 6, and one end of the bolt 61 passing through the positioning plate 6 is threadedly installed on one side of the support frame 1. More specifically, by loosening the bolt 61, the positioning plate 6 can be slid, and the positioning plate 6 drives the hook telescopic buckle 3 to lift along the vertical direction of the support frame 1, thereby adjusting the position of the hook telescopic buckle 3 on the support frame 1 to facilitate adapting to syringes 9 of different heights.

[0038] Given by Figure 1 Finally, a scale 5 is installed on one side of the support frame 1. The height to which the piston handle buckle 2 rises can be observed through the value on the scale 5, and thus the liquid extraction dose can be adjusted in real time.

[0039] Beneficial effects achieved by the support frame 1, lifting mechanism, piston handle buckle 2, piston rod card slot 21, first elastic member 23, piston rod 8, piston ear card slot 22, piston rod hanging ear 81, hook telescopic buckle 3, fixing member, syringe barrel card slot 31, second elastic member 33, syringe barrel 9, hanging ear card slot 32 and syringe barrel hanging ear 91: The piston rod 8 is installed in the piston rod card slot 21, and the syringe barrel 9 is installed in the syringe barrel card slot 31. By providing the two compressible rubber materials of the first elastic member 23 and the second elastic member 33, it is applicable to syringe barrels of different specifications. Through program setting, the motor drives and controls the lifting height of the lifting rod 4 through the first gear 42 and the second gear 43. The lifting rod 4 drives the piston rod 8 to lift through the piston handle buckle 2, thereby completing the automatic liquid extraction of the syringe barrel, accurately controlling the size of the required dose to be extracted, improving the liquid extraction speed and accuracy, and reducing the occupational fatigue of medical staff.

[0040] When the present utility model is in use, first, the piston rod 8 is embedded between the two first elastic members 23, the piston rod hanging ear 81 is embedded into the piston ear card slot 22, the syringe barrel 9 is embedded between the two second elastic members 33, and the syringe barrel hanging ear 91 is embedded into the syringe barrel card slot 31. Then, the switch button 72 is pressed to start the motor. The motor drives the second gear 43 to rotate, the second gear 43 drives the first gear 42 to rotate, and the first gear 42 drives the lifting rod 4 to lift in the lifting card slot 11 through the teeth 41. The piston handle buckle 2 rises following the lifting rod 4, and the piston handle buckle 2 drives the piston rod 8 to rise, thereby performing liquid extraction and enabling the liquid to enter the syringe barrel 9.

[0041] Although the embodiments of the present utility model have been shown and described, for those of ordinary skill in the art, it can be understood that various changes, modifications, substitutions, and variations can be made to these embodiments without departing from the principles and spirit of the present utility model. The scope of the present utility model is defined by the appended claims and their equivalents.

Claims

1. An automatic liquid extraction device suitable for syringes of different specifications, characterized in that: The invention comprises a support frame (1), a piston handle buckle (2) is slidably mounted on one side of the support frame (1) through a lifting mechanism, the piston handle buckle (2) matches with the piston rod (8) of the syringe, and two first elastic members (23) matching with the piston rod (8) are also arranged on the inner side of the piston handle buckle (2); A hook and telescopic buckle (3) is slidably mounted on one side of the support frame (1) through a fixing assembly, and the hook and telescopic buckle (3) cooperates with the syringe barrel (9) of the syringe. Two second elastic members (33) cooperating with the syringe barrel (9) are also arranged on the inner side of the hook and telescopic buckle (3).

2. The automatic liquid extraction device applicable to syringe barrels of different specifications according to claim 1, characterized in that: The lifting mechanism comprises a lifting rod (4), a lifting slot (11) is provided on one side of the support frame (1), the lifting rod (4) is slidably mounted in the lifting slot (11), the piston handle buckle (2) is mounted on one side of the lifting rod (4), one side of the lifting rod (4) is provided with teeth (41), a first gear (42) is rotatably mounted inside the support frame (1), the first gear (42) is meshed with the teeth (41) provided on one side of the lifting rod (4), a second gear (43) meshed with the first gear (42) is rotatably mounted inside the support frame (1), a motor is mounted inside the support frame (1), and an output end of the motor is connected to the second gear (43).

3. The automatic liquid extraction device applicable to syringe barrels of different specifications according to claim 1 is characterized in that: A scale (5) is installed on one side of the support frame (1).

4. The automatic liquid extraction device applicable to syringe barrels of different specifications according to claim 1, characterized in that: The fixing assembly comprises a bolt (61), a positioning plate (6) is provided on one side of the hook telescopic buckle (3), the positioning plate (6) is slidably mounted on one side of the support frame (1), the bolt (61) is penetrated and mounted on the positioning plate (6), and one side of the bolt (61) is threadedly mounted on one side of the support frame (1).

5. The automatic liquid extraction device applicable to syringe barrels of different specifications according to claim 1, characterized in that: A piston rod slot (21) is provided on one side of the piston handle buckle (2), two first elastic members (23) are respectively arranged on the slot walls on both sides of the piston rod slot (21), the piston rod (8) is clamped between the two first elastic members (23), a piston ear slot (22) is provided on one side of the piston handle buckle (2), a piston rod hanging ear (81) is provided on the top of the piston rod (8), and the piston rod hanging ear (81) is clamped in the piston ear slot (22).

6. The automatic liquid extraction device applicable to syringe barrels of different specifications according to claim 1, characterized in that: A tube clamping groove (31) is provided on one side of the hook telescopic buckle (3), two second elastic members (33) are respectively arranged on the groove walls on both sides of the tube clamping groove (31), the syringe (9) is clamped between the two second elastic members (33), a hanging ear clamping groove (32) is provided on one side of the hook telescopic buckle (3), a syringe hanging ear (91) is provided on the top of the syringe (9), and the syringe hanging ear (91) is clamped in the hanging ear clamping groove (32).

7. The automatic liquid extraction device applicable to syringe barrels of different specifications according to claim 1, characterized in that: The first elastic member (23) and the second elastic member (33) are both rubber blocks.

8. The automatic liquid extraction device applicable to syringe barrels of different specifications according to claim 2, characterized in that: A programming circuit board (7) is installed inside the support frame (1), an electronic touch screen (71) is installed on the top of the support frame (1), a switch button (72) is installed on one side of the support frame (1), and a battery (45) is installed at the inner bottom end of the support frame (1); the programming circuit board (7), the electronic touch screen (71), the switch button (72), the motor and the battery (45) are electrically connected to each other.