Quantitative suction device for medicine

Abstract

The utility model relates to the technical field of medicine suction devices, in particular to a quantitative medicine suction device which comprises a needle cylinder, a limiting mechanism is arranged on the right side of the needle cylinder and comprises a mounting frame, a knob is rotationally connected to the right side surface of the mounting frame through a bearing, and the left end of the knob is fixedly connected with a threaded rod through a bolt. The left end of the threaded rod penetrates through the bottom end of the mounting frame and is rotatably connected with the right side surface of the needle cylinder through a bearing, the threaded rod is in threaded connection with a moving plate, the top of the moving plate is fixedly connected with a limiting plate through a bolt, and the left side surface of the mounting frame is fixedly connected with a limiting rod through a bolt, and the left end of the limiting rod penetrates through the top end of the limiting plate and extends into an inner cavity of the mounting cylinder. According to the quantitative suction device for the medicine, by arranging the limiting mechanism, quantitative suction of the medicine can be achieved through the device.

Description

Technical Field

[0001] The utility model relates to the technical field of drug suction devices, and specifically relates to a quantitative suction device for drugs. Background Technique

[0002] When taking drugs, the dosage often needs to be strictly controlled. At present, medical staff usually use syringes to take liquid drugs.

[0003] An antibacterial drug suction test device with the publication number of CN215353523U relates to the technical field of suction test devices. The antibacterial drug suction test device includes a suction head body. The middle part of the suction head body is a liquid storage tube, the tail part of the suction head body is a liquid suction end, and the head part of the suction head body is a connection end. The connection end includes an interface one, an interface two, and an interface three arranged in sequence from top to bottom. The interface one, the interface two, and the interface three are connected and communicated in sequence, and the diameters of the interface one, the interface two, and the interface three decrease in sequence. By setting the interface one, the interface two, and the interface three, the utility model can be used in cooperation with pipettes of three models, improves the adaptability of the product, reduces the complexity of selection, has a simple process, is easy to install, and is convenient to use, and solves the problem that the straws used to suck antibacterial drugs in the prior art have fixed and single nozzle sizes and cannot be adaptively installed on a variety of different models of pipettes for use.

[0004] Although this device improves the adaptability of the product, it cannot quantitatively suck drugs. In view of this, we propose a quantitative suction device for drugs. Content of the Utility Model

[0005] The purpose of the utility model is to provide a quantitative suction device for drugs to solve the problems raised in the above background technique.

[0006] To achieve the above purpose, the utility model provides the following technical solution:

[0007] A quantitative suction device for drugs includes a syringe barrel. A limiting mechanism is arranged on the right side of the syringe barrel. The limiting mechanism includes a mounting frame. The right side surface of the mounting frame is rotatably connected with a knob through a bearing. The left end of the knob is fixedly connected with a threaded rod through a bolt. The left end of the threaded rod penetrates through the bottom end of the mounting frame and is rotatably connected with the right side surface of the syringe barrel through a bearing. The threaded rod is threadedly connected with a moving plate. The top of the moving plate is fixedly connected with a limiting plate through a bolt. The left side surface of the mounting frame is fixedly connected with a limiting rod through a bolt. The left end of the limiting rod penetrates through the top end of the limiting plate and extends into the inner cavity of the mounting cylinder.

[0008] Preferably, openings are symmetrically arranged at the front and rear ends of the syringe barrel, and observation mirrors are fixedly bonded to the inner walls of the openings through glue.

[0009] Preferably, a plurality of scale bars are adhesively fixed to the outer surface of the observation mirror, and the scale bars are arranged at equal intervals.

[0010] Preferably, a suction tube is adhesively fixed to the left inner surface of the syringe barrel, and the left end of the suction tube penetrates through the left end of the syringe barrel and is adhesively fixed with a needle head.

[0011] Preferably, a piston is slidably connected to the inner wall of the syringe barrel, and an installation cylinder is fixedly connected to the right surface of the piston by bolts.

[0012] Preferably, the right end of the installation cylinder penetrates through the right end of the syringe barrel and is slidably connected to the syringe barrel, and a handle is adhesively fixed to a position near the right side on the circumferential outer wall of the installation cylinder.

[0013] Preferably, a plurality of scale grooves are formed on the circumferential outer wall of the limiting rod, and the scale grooves are arranged at equal intervals.

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

[0015] 1. For this quantitative drug suction device, by setting the mounting frame, knob, threaded rod and moving plate, the user can conveniently adjust the position of the limiting plate;

[0016] 2. For this quantitative drug suction device, by setting the limiting rod, the moving direction of the limiting plate is limited, and scale grooves are formed on the limiting rod, so that the user can conveniently observe the distance between the left surface of the limiting plate and the right surface of the syringe barrel, enabling the device to achieve quantitative suction of drugs. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 is the overall structural schematic diagram of the present utility model;

[0018] Figure 2 is the sectional structural schematic diagram of the present utility model;

[0019] Figure 3 is the structural schematic diagram of the installation cylinder in the present utility model;

[0020] Figure 4 is the structural schematic diagram of the limiting mechanism in the present utility model.

[0021] The meanings of each reference numeral in the figure are as follows:

[0022] 1. Syringe barrel; 11. Opening; 12. Observation mirror; 13. Scale bar; 14. Suction tube; 15. Needle head; 16. Piston; 17. Installation cylinder; 18. Handle;

[0023] 2. Limit mechanism; 21. Mounting frame; 22. Knob; 23. Threaded rod; 24. Moving plate; 25. Limiting plate; 26. Limiting rod; 27. Scale groove. Detailed implementation manners

[0024] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0025] Please refer to Figures 1-4 , the present invention provides a technical solution:

[0026] A quantitative suction device for drugs includes a syringe 1. Openings 11 are symmetrically formed at the front and rear ends of the syringe 1. An observation mirror 12 is adhesively fixed to the inner wall of the opening 11. The observation mirror 12 is made of transparent glass, which is convenient for the user to observe the inside of the syringe 1.

[0027] Specifically, a plurality of scale bars 13 are adhesively fixed to the outer surface of the observation mirror 12. The scale bars 13 are arranged at equal intervals, which is convenient for the user to know the liquid volume in the syringe 1.

[0028] It should be added that a suction tube 14 is adhesively fixed to the left side surface of the inner wall of the syringe 1 to introduce liquid medicine into the syringe 1. The left end of the suction tube 14 penetrates through the left end of the syringe 1 and is adhesively fixed with a needle head 15 to introduce liquid medicine into the suction tube 14.

[0029] Furthermore, a piston 16 is slidably connected to the inner wall of the syringe 1. The outer wall of the piston 16 is in close fit with the inner wall of the syringe 1, and the air in the inner cavity of the syringe 1 cannot move from the left side of the piston 16 to the right side of the piston 16. A mounting cylinder 17 is fixedly connected to the right side surface of the piston 16 by bolts to drive the piston 16 to move. The right end of the mounting cylinder 17 penetrates through the right end of the syringe 1 and is slidably connected to the syringe 1. A handle 18 is adhesively fixed to a position near the right side on the circumferential outer wall of the mounting cylinder 17 to drive the mounting cylinder 17 to move.

[0030] As a preference of this embodiment, a limit mechanism 2 is provided on the right side of the syringe 1. The limit mechanism 2 includes a mounting frame 21. A knob 22 is rotatably connected to the right side surface of the mounting frame 21 through a bearing to drive the threaded rod 23 to rotate.

[0031] Specifically, the left end of the knob 22 is fixedly connected to the threaded rod 23 by bolts to drive the moving plate 24 to move. The left end of the threaded rod 23 penetrates through the bottom end of the mounting frame 21 and is rotatably connected to the right side surface of the syringe 1 through a bearing.

[0032] Specifically, the threaded rod 23 is threadedly connected with a moving plate 24 for driving the limiting plate 25 to move. The top of the moving plate 24 is fixedly connected with the limiting plate 25 by bolts for limiting the position of the handle 18.

[0033] Specifically, a limiting rod 26 is fixedly connected to the left side surface of the mounting bracket 21 by bolts. The left end of the limiting rod 26 passes through the top end of the limiting plate 25 and extends into the inner cavity of the mounting cylinder 17 for limiting the moving direction of the limiting plate 25.

[0034] Specifically, a plurality of scale grooves 27 are formed on the circumferential outer wall of the limiting rod 26 for facilitating the user to observe the distance between the left side surface of the limiting plate 25 and the right side surface of the syringe barrel 1. And when the left side surface of the limiting plate 25 and the leftmost scale groove 27 are in the same vertical plane, the left side surface of the limiting plate 25 is in contact with the right side surface of the handle 18, and the scale grooves 27 are arranged at equal intervals.

[0035] During the specific use process, the user first rotates the knob 22, thereby driving the threaded rod 23 to rotate, thereby driving the moving plate 24 to move to the right, thereby driving the limiting plate 25 to move to the right. When the distance between the left side surface of the limiting plate 25 and the leftmost scale groove 27 reaches the specified distance, stop rotating the knob 22;

[0036] Insert the needle 15 into the liquid medicine to be aspirated, move the handle 18 to the right, thereby driving the mounting cylinder 17 to move to the right, thereby driving the piston 16 to move to the right. The needle 15 introduces the liquid medicine into the suction tube 14, and the suction tube 14 then introduces the liquid medicine into the syringe barrel 1. When the right side surface of the handle 18 is in contact with the left side surface of the limiting plate 25, the medicine aspirated by the device reaches the specified amount.

[0037] The above shows and describes the basic principles, main features and advantages of the present utility model. Those skilled in the art of this industry should understand that the present utility model is not limited by the above embodiments. The above embodiments and the descriptions in the specification are only the preferred examples of the present utility model and are not used to limit the present utility model. Without departing from the spirit and scope of the present utility model, the present utility model will have various changes and improvements, and these changes and improvements all fall within the scope of the present utility model claimed. The scope of protection claimed by the present utility model is defined by the appended claims and their equivalents.

Claims

1. A quantitative drug aspiration device, comprising a syringe (1), characterized in that: A limiting mechanism (2) is provided on the right side of the syringe (1), and the limiting mechanism (2) comprises a mounting frame (21), a right side surface of the mounting frame (21) being rotatably connected to a knob (22) via a bearing, a left end of the knob (22) being fixedly connected to a threaded rod (23) via a bolt, a left end of the threaded rod (23) passing through the bottom end of the mounting frame (21) and being rotatably connected to the right side surface of the syringe (1) via a bearing, a movable plate (24) being threadedly connected to the threaded rod (23), a top of the movable plate (24) being fixedly connected to a limiting plate (25) via a bolt, a left side surface of the mounting frame (21) being fixedly connected to a limiting rod (26) via a bolt, a left end of the limiting rod (26) passing through the top end of the limiting plate (25) and extending into the inner cavity of the mounting cylinder (17).

2. The quantitative drug aspiration device according to claim 1, characterized in that: The syringe (1) is symmetrically provided with openings (11) at both ends, and an observation mirror (12) is fixed to the inner wall of the opening (11) by gluing.

3. The quantitative drug aspiration device according to claim 2, characterized in that: A plurality of scale bars (13) are fixed to the outer surface of the observation mirror (12) by gluing, and the scale bars (13) are arranged at even intervals.

4. The quantitative drug aspiration device according to claim 1, characterized in that: A suction tube (14) is fixed to the left side surface of the inner wall of the syringe (1) by glue, and the left end of the suction tube (14) passes through the left end of the syringe (1) and is fixed to a needle (15) by glue.

5. The quantitative drug aspiration device according to claim 1, characterized in that: The inner wall of the syringe (1) is slidably connected to a piston (16), and the right side surface of the piston (16) is fixedly connected to a mounting cylinder (17) via bolts.

6. The quantitative drug aspiration device according to claim 5, characterized in that: The right end of the mounting tube (17) penetrates the right end of the syringe (1) and is slidably connected to the syringe (1). A handle (18) is fixed to the outer wall of the circumference of the mounting tube (17) at a position close to the right side by means of glue.

7. The quantitative drug aspiration device according to claim 1, characterized in that: A plurality of scale grooves (27) are provided on the circumferential outer wall of the limiting rod (26), and the scale grooves (27) are arranged at even intervals.

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