CN215536622U

CN215536622U - Lead screw driving type micro-dispensing injector

Info

Publication number: CN215536622U
Application number: CN202122110294.1U
Authority: CN
Inventors: 隋秀梅; 陈大为
Original assignee: Shandong Hongze Biotechnology Co ltd
Current assignee: Shandong Hongze Biotechnology Co ltd
Priority date: 2021-09-02
Filing date: 2021-09-02
Publication date: 2022-01-18
Anticipated expiration: 2031-09-02

Abstract

The utility model provides a lead screw driving type microdosing syringe, which relates to the technical field of medical instruments and comprises a syringe structure, wherein the syringe structure comprises a syringe shell, the upper end of the syringe shell is provided with a microdosing control structure, the microdosing control structure comprises an end shell, the upper end in the end shell is provided with a power supply in a clamping manner, the lower end in the end shell is provided with a transmission motor in a clamping manner, the lower end of the end shell is fixedly connected with the upper end of the syringe shell, the upper end of the end shell is provided with a data display screen and a dosage regulating and controlling button, when in use, through the arrangement of the transmission motor, the dosage regulating and controlling button can be used for setting the dosage of liquid medicine to be extracted, so that the rotation of the transmission motor is controlled, the transmission lead screw is controlled to drive a rubber sealing disc to move, and the liquid medicine is extracted through an injection nozzle, so as to control the extraction amount of the liquid medicine in a micro-scale manner.

Description

Lead screw driving type micro-dispensing injector

Technical Field

The utility model relates to the technical field of medical instruments, in particular to a lead screw driving type micro-dispensing injector.

Background

The advent of syringes is an epoch-making revolution in the field of medical devices. The process of drawing, injecting gas or liquid with a needle is called injection. The injector consists of a syringe with a small hole at the front end and a matched piston core rod, and is used for injecting a small amount of liquid or extracting the liquid or the liquid from the inaccessible area by other methods, wherein the liquid or gas is sucked from the small hole at the front end of the syringe when the core rod is pulled out, and the liquid or gas is extruded when the core rod is pushed in.

However, in the prior art, in medical treatment, a syringe is mostly used for dispensing of a liquid medicine, but the conventional syringe is mainly used manually, so that the control of the dispensing amount of the medicine is poor when dispensing the medicine, the proportion of the dispensed liquid medicine is difficult to grasp, deviation of the property of the medicine for dispensing the liquid medicine is caused, and the practicability of the syringe is low.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the defects in the prior art, and in use, through the arrangement of the transmission motor, when in use, the quantity of liquid medicine to be extracted can be set through the quantity adjusting and controlling button, so that the rotation of the transmission motor is controlled, the transmission lead screw is controlled to drive the rubber sealing disc to move, and the liquid medicine is extracted through the injection nozzle, so that the extraction quantity of the liquid medicine is subjected to micro-control.

In order to achieve the purpose, the utility model adopts the following technical scheme: the utility model provides a lead screw drive formula micro-dispensing syringe, includes the syringe structure, the syringe structure includes the syringe shell, the upper end of syringe shell is provided with the micro-control structure, the micro-control structure includes the tip shell, the inside upper end joint of tip shell is provided with power supply, the inside lower extreme joint of tip shell is provided with drive motor, the lower extreme of tip shell and the upper end fixed connection of syringe shell, the upper end of tip shell is provided with data display screen and quantity regulation button, drive motor's output transmission is connected with drive screw, the inside sliding connection of syringe shell has rubber seal dish, the internal thread meshing groove has been seted up at rubber seal dish's middle part, the external surface meshing of internal thread meshing groove and drive screw.

Preferably, the upper end and the lower end of the internal thread meshing groove are both provided with a clamping end groove, and the inside of the clamping end groove is fixedly connected with sealing filler.

Preferably, the lower end of the inside of the injector shell is fixedly connected with a bottom limiting seat, a limiting unthreaded hole is formed in the middle of the bottom limiting seat, and the limiting unthreaded hole is connected with the lower end of the outer surface of the transmission screw in a rotating manner.

Preferably, a side liquid inlet hole is formed in the bottom limiting seat.

Preferably, the outer surface of the upper end of the syringe shell is fixedly connected with an end holding flank, and the lower end of the end holding flank is provided with a clamping placement groove.

Preferably, the outer surface of the syringe shell is fixedly connected with a scale plate.

Preferably, the middle part of the scale plate and the outer surface of the injector shell are fixedly connected with transparent display strips.

Preferably, the lower end of the injector shell is fixedly communicated with an injection nozzle.

Compared with the prior art, the utility model has the advantages and positive effects that,

1. according to the utility model, through the arrangement of the transmission motor, when the injection device is used, the amount of liquid medicine to be extracted can be set through the usage amount regulating and controlling button, so that the rotation of the transmission motor is controlled, the transmission screw rod is controlled to drive the rubber sealing disc to move, so that the liquid medicine is extracted through the injection nozzle, the extraction amount of the liquid medicine is subjected to micro-control, through the arrangement of the sealing filler, the liquid medicine is prevented from flowing to the upper part of the rubber sealing disc, the liquid medicine extraction precision is ensured, the lower end of the transmission screw rod is limited through the limiting unthreaded hole, so that the stability of the transmission screw rod during use is ensured, and during extraction, the liquid medicine enters from the injection nozzle and flows into the interior of the injector shell through the side liquid inlet hole.

2. According to the utility model, the end holding side wing and the clamping and placing groove are arranged to facilitate the hanging and placing of the syringe shell, the position of the syringe shell is fixed to prevent the syringe shell from moving, the scale of the liquid medicine is arranged on the scale plate through the arrangement of the scale plate, and the amount of the liquid medicine is observed through the transparent display strip, so that the state of the liquid medicine is conveniently controlled.

Drawings

FIG. 1 is a perspective view of a lead screw driven type microdose dispensing syringe according to the present invention;

FIG. 2 is a schematic view of the internal structure of a lead screw driven type microdose dispensing syringe according to the present invention;

fig. 3 is an exploded view of a lead screw driven micro-dispensing syringe according to the present invention.

Illustration of the drawings:

1. an injector structure; 11. a syringe housing; 12. a scale plate; 13. a transparent display bar; 14. an injection nozzle; 15. an end gripping flap; 16. clamping the placing groove;

2. a micro-control structure; 21. an end housing; 22. a data display screen; 23. a dose control button; 24. a power supply; 25. a drive motor; 26. a drive screw; 27. a rubber sealing disc; 28. a bottom limiting seat; 29. a clamping end slot; 210. sealing and filling; 211. a side liquid inlet hole; 212. an internal thread engagement groove; 213. and limiting the unthreaded hole.

Detailed Description

In order that the above objects, features and advantages of the present invention can be more clearly understood, the present invention will be further described with reference to the accompanying drawings and examples. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and thus the present invention is not limited to the specific embodiments of the present disclosure.

Embodiment 1, as shown in fig. 1 to 3, the present invention provides a lead screw driven type microdose dispensing syringe, which includes a syringe structure 1, the syringe structure 1 includes a syringe housing 11, the upper end of the syringe housing 11 is provided with a microdose control structure 2, the microdose control structure 2 includes an end housing 21, the inner upper end of the end housing 21 is provided with a power supply 24 in a clamping manner, the inner lower end of the end housing 21 is provided with a transmission motor 25 in a clamping manner, the lower end of the end housing 21 is fixedly connected with the upper end of the syringe housing 11, the upper end of the end housing 21 is provided with a data display screen 22 and a dosage control button 23, the output end of the transmission motor 25 is connected with a transmission lead screw 26 in a transmission manner, the inner portion of the syringe housing 11 is connected with a rubber sealing disc 27 in a sliding manner, the middle portion of the rubber sealing disc 27 is provided with an internal thread engagement groove 212, the internal thread engagement groove 212 is engaged with the outer surface of the transmission lead screw 26, the upper and lower ends of the internal thread meshing groove 212 are provided with a clamping end groove 29, the inner part of the clamping end groove 29 is fixedly connected with a sealing filler 210, the lower end inside the injector shell 11 is fixedly connected with a bottom limiting seat 28, the middle part of the bottom limiting seat 28 is provided with a limiting unthreaded hole 213, the limiting unthreaded hole 213 is rotatably clamped with the lower end of the outer surface of the transmission lead screw 26, and the inside of the bottom limiting seat 28 is provided with a side liquid inlet hole 211.

The effect that its whole embodiment 1 reaches does, through the setting of drive motor 25, when using, accessible quantity control button 23 sets up the volume that needs the extraction liquid medicine, thereby control drive motor 25's rotation, control drive screw 26 drives rubber seal dish 27 and removes, thereby extract the liquid medicine through injection nozzle 14, carry out micro-control with the extraction volume to the liquid medicine, setting through gland packing 210, a top for preventing the liquid medicine from flowing to rubber seal dish 27, guarantee the precision of liquid medicine extraction simultaneously, through spacing unthreaded hole 213, carry on spacingly to drive screw 26's lower extreme, thereby guarantee the stability when drive screw 26 uses, during the extraction, the liquid medicine gets into from injection nozzle 14, flow into the inside of syringe shell 11 through side feed liquor hole 211.

In embodiment 2, as shown in fig. 1 to 3, an end holding wing 15 is fixedly connected to an outer surface of an upper end of a syringe housing 11, a clamping placement groove 16 is formed at a lower end of the end holding wing 15, a scale plate 12 is fixedly connected to an outer surface of the syringe housing 11, a transparent display strip 13 is fixedly connected to a middle portion of the scale plate 12 and the outer surface of the syringe housing 11, and an injection nozzle 14 is fixedly communicated with a lower end of the syringe housing 11.

The effect that its whole embodiment 2 reached does, through the tip hold the setting of flank 15 and joint standing groove 16, plays the effect of being convenient for hang up syringe shell 11 and place, fixes syringe shell 11's position, prevents that syringe shell 11 from producing the removal, through the setting of scale plate 12, sets up the scale of liquid medicine on scale plate 12, observes the volume of liquid medicine through transparent display strip 13 to be convenient for master the state of liquid medicine.

In this embodiment, the transmission motor 25 is prior art and will not be described herein.

The above description is only a preferred embodiment of the present invention, and not intended to limit the present invention in other forms, and any person skilled in the art may apply the above modifications or changes to the equivalent embodiments with equivalent changes by using the technical contents disclosed in the above description to other fields, but any simple modification, equivalent change and change made to the above embodiments according to the technical essence of the present invention still belong to the protection scope of the technical solution of the present invention.

Claims

1. The utility model provides a lead screw drive formula microdose syringe, includes syringe structure (1), its characterized in that: the syringe structure (1) comprises a syringe shell (11), the upper end of the syringe shell (11) is provided with a micro-control structure (2), the micro-control structure (2) comprises a tip shell (21), the inner upper end joint of the tip shell (21) is provided with a power supply (24), the inner lower end joint of the tip shell (21) is provided with a transmission motor (25), the lower end of the tip shell (21) is fixedly connected with the upper end of the syringe shell (11), the upper end of the tip shell (21) is provided with a data display screen (22) and a dosage adjusting and controlling button (23), the output end of the transmission motor (25) is in transmission connection with a transmission lead screw (26), the inner sliding connection of the syringe shell (11) is provided with a rubber sealing disc (27), the middle part of the rubber sealing disc (27) is provided with an internal thread meshing groove (212), the internal thread engaging groove (212) is engaged with the outer surface of the drive screw (26).

2. The lead screw-driven microdosing syringe according to claim 1, characterized in that: the upper end and the lower end of the internal thread meshing groove (212) are both provided with a clamping end groove (29), and the inside of the clamping end groove (29) is fixedly connected with a sealing filler (210).

3. The lead screw-driven microdosing syringe according to claim 1, characterized in that: the syringe shell (11) is inside the lower extreme fixedly connected with bottom spacing seat (28), spacing unthreaded hole (213) have been seted up at the middle part of bottom spacing seat (28), spacing unthreaded hole (213) rotate the joint with the lower extreme of drive screw (26) surface.

4. The lead screw-driven microdosing syringe of claim 3, characterized in that: and a side liquid inlet hole (211) is formed in the bottom limiting seat (28).

5. The lead screw-driven microdosing syringe according to claim 1, characterized in that: the outer surface of the upper end of the injector shell (11) is fixedly connected with an end holding side wing (15), and the lower end of the end holding side wing (15) is provided with a clamping placement groove (16).

6. The lead screw-driven microdosing syringe according to claim 1, characterized in that: the outer surface of the injector shell (11) is fixedly connected with a scale plate (12).

7. The lead screw-driven microdosing syringe of claim 6, wherein: the middle part of the scale plate (12) and the outer surface of the injector shell (11) are fixedly connected with transparent display strips (13).

8. The lead screw-driven microdosing syringe according to claim 1, characterized in that: the lower end of the injector shell (11) is fixedly communicated with an injection nozzle (14).