CN210813153U

CN210813153U - Component injector

Info

Publication number: CN210813153U
Application number: CN201921175029.8U
Authority: CN
Inventors: 职晶晶; 廉小娟; 刘静; 张丁丁; 周航宇; 王军霞
Original assignee: First Affiliated Hospital of Zhengzhou University
Current assignee: First Affiliated Hospital of Zhengzhou University
Priority date: 2019-07-24
Filing date: 2019-07-24
Publication date: 2020-06-23
Anticipated expiration: 2029-07-24

Abstract

The component injector effectively solves the problem that the existing injector can not inject the medicament accurately and quantitatively; the injection device comprises an injection tube in the front-back axial direction, a control tube with a backward opening is coaxially arranged at the rear end of the injection tube, a push rod penetrating through the front side wall of the control tube is coaxially and slidably connected in the injection tube, a threaded rod is coaxially arranged at the rear end of the push rod, a threaded sleeve with the rear end extending out of the control tube is connected to the outer edge surface of the threaded rod, the rear end of the threaded rod extends out of the threaded sleeve, the outer edge surface of the threaded sleeve is not in contact with the control tube, and a plurality of scale marks uniformly distributed along the; the structure is simple, the operation is convenient, the conception is novel, and the practicability is strong.

Description

Component injector

Technical Field

The utility model relates to the field of medical auxiliary treatment apparatus, in particular to a component injector.

Background

The used medicine of patient is the result that multiple medicine mixes usually in medical science, when using some vasoactive medicines, need carry out accurate control to its quantity, but the scale interval on the present syringe is great, can't satisfy the injection demand of high accuracy, in the injection process, because medical personnel's strength is not of uniform size, and the content of medicine is more than required dose in the syringe, so sometimes medical personnel can be because of using too big and inject the medicament of excess into, the risk of using medicine has been increased, easily cause unnecessary injury to the patient, be unfavorable for patient's recovery.

SUMMERY OF THE UTILITY MODEL

To the above situation, in order to overcome the defects of the prior art, the utility model aims to provide a quantitative injector, which effectively solves the problem that the prior injector can not inject the medicament accurately and quantitatively.

The technical scheme of its solution is, the utility model discloses an axial injection tube around, the coaxial control section of thick bamboo that is equipped with the opening backward in the injection tube rear end, coaxial sliding connection has the push rod that runs through lateral wall before the control section of thick bamboo in the injection tube, the coaxial threaded rod that is equipped with in push rod rear end is connected with the thread bush that the rear end stretches out the control section of thick bamboo on the threaded rod outer fringe face, the thread bush is stretched out to the threaded rod rear end, thread bush outer fringe face and control section of thick bamboo contactless are equipped with a plurality of scale marks along its axial equipartition on the control section of thick bamboo.

Compared with the prior art, the beneficial effects of the utility model are that: the syringe has the advantages that accurate and quantitative injection of the medicament is realized, the situation that the liquid medicine is injected too much due to too much labor of medical workers is avoided, the problems that the scale reading of the existing syringe is large and cannot be accurately read are solved, the safety of medication is improved, unnecessary injury to a patient due to inaccurate medicament capacity is avoided, the working efficiency of the medical workers is improved, the structure is simple, the operation is convenient, the conception is novel, and the practicability is high.

Drawings

Fig. 1 is an isometric view of the present invention.

Fig. 2 is a half-section axial view of the present invention.

Fig. 3 is a partial cross-sectional view of the present invention.

Fig. 4 is an enlarged view of a in fig. 2 according to the present invention.

Fig. 5 is an enlarged view of B in fig. 3 according to the present invention.

Detailed Description

The following describes the embodiments of the present invention in further detail with reference to the accompanying drawings.

By figure 1 to 5, axial injection tube 1 around including, the coaxial control section of thick bamboo 2 that is equipped with the opening backward in the 1 rear end of injection tube, coaxial sliding connection has the push rod 3 that runs through the lateral wall before the control section of thick bamboo 2 in the injection tube 1, the coaxial threaded rod 4 that is equipped with of 3 rear ends of push rod, be connected with the back on the threaded rod 4 outer fringe face and stretch out the thread bush 5 of control section of thick bamboo 2, the thread bush 5 is stretched out to the threaded rod 4 rear end, 5 outer fringe faces of thread bush and the control section of thick bamboo 2 contactless, be equipped with a plurality of scale marks 6 along its axial equipartition on the 2 outer fringe faces.

In order to prevent the medicine liquid from remaining in the syringe 1, the front end of the push rod 3 is coaxially provided with a rubber block 7 with the outer diameter equal to the inner diameter of the syringe 1.

In order to facilitate the pushing of the threaded rod 4, a push block 8 is coaxially arranged at the rear end of the threaded rod 4.

In order to facilitate the rotation of the threaded sleeve 5, the rear end of the threaded sleeve 5 is coaxially provided with an anti-slip ring 9.

In order to facilitate the injection of the medicine, the left side and the right side of the control cylinder 2 are respectively provided with a stop block 10 positioned at the rear end thereof.

In order to better control the amount of the injected medicament, the control cylinder 2 is made of transparent material, and the outer edge surface of the threaded sleeve 5 is provided with a mark ring 11 positioned at the front side.

When the utility model is used, the reading number of the scale mark 6 is increased from front to back, the initial state is that the front end surface of the thread bush 5 is contacted with the front side wall of the control cylinder 2, and the mark ring 11 is aligned with the scale mark 6 with the reading number of zero up and down;

connecting a needle head with the injection tube 1, inserting the needle head into a required medicament, pulling the push block 8 backwards, synchronously moving the threaded rod 4 backwards and driving the threaded sleeve 5 to move backwards, separating the front end face of the threaded sleeve 5 from the front side wall of the control tube 2, simultaneously driving the rubber block 7 to move backwards by the push rod 3, and sucking the medicament into the injection tube 1;

after a certain amount of medicament is sucked into the injection tube 1, gas in the injection tube 1 is discharged according to medical requirements, the push block 8 is held by a hand, the anti-slip ring 9 rotates anticlockwise, the threaded sleeve 5 rotates anticlockwise synchronously, the threaded rod 4 cannot rotate left and right and move front and back due to the fact that the push block 8 is held by the hand, the threaded sleeve 5 moves forward while rotating, and when the mark ring 11 is vertically aligned with the scale mark 6 of required dose reading, the anti-slip ring 9 stops rotating, for example: when the required liquid medicine dosage is 2ml, the anti-slip ring 9 stops rotating when the mark ring 11 is aligned with the scale mark 6 with the reading of 2ml up and down, and the threaded sleeve 5 stops moving synchronously;

insert the syringe needle of 1 front end connection of injection tube in the object of required injection medicament, promote ejector pad 8 forward, threaded rod 4 moves forward and drives thread bush 5 forward movement in step, push rod 3 drives rubber 7 forward movement in step, injection tube 1 is extruded to the medicament in the injection tube 1, when lateral wall contact before 5 preceding terminal surfaces of thread bush and control section of thick bamboo 2, can't promote ejector pad 8, the liquid capacity of the injection tube 1 of discharging this moment is required capacity, for example: the marking ring 11 is vertically aligned with the scale mark 6 with the reading of 2ml, the volume of the medicament discharged out of the syringe 1 is 2ml at the moment, and the condition that the medical staff injects excessive medicament due to overlarge force is prevented;

when another object needs to be injected with the medicine, the push rod 3 is held by a hand, the anti-slip ring 9 is rotated clockwise, the threaded sleeve 5 synchronously rotates clockwise and moves backwards, when the threaded sleeve 5 moves to a proper position, namely the scale mark 6 of the required dosage reading is vertically aligned with the mark ring 11, the anti-slip ring 9 stops rotating, and the push block 8 is pushed forwards.

The utility model discloses the biggest reading of scale mark 6 can set up to 20ml, is convenient for carry out accurate reading to the liquid medicine content in the injection tube 1.

Claims

1. Component syringe, axial injection tube (1) around including, its characterized in that, injection tube (1) rear end is coaxial to be equipped with control section of thick bamboo (2) that the opening is backward, coaxial sliding connection has push rod (3) of running through control section of thick bamboo (2) preceding lateral wall in injection tube (1), push rod (3) rear end is coaxial to be equipped with threaded rod (4), be connected with on threaded rod (4) the outer fringe face thread bush (5) that the rear end stretches out control section of thick bamboo (2), thread bush (4) rear end stretches out thread bush (5), thread bush (5) outer fringe face and control section of thick bamboo (2) contactless, be equipped with a plurality of scale marks (6) along its axial equipartition on control section of thick bamboo (2) outer fringe face.

2. Component injector according to claim 1, characterized in that the plunger (3) is provided coaxially with a rubber block (7) at its forward end, the outer diameter of which is equal to the inner diameter of the syringe (1).

3. Component injector according to claim 1, characterized in that the threaded rod (4) is provided coaxially with a push block (8) at its rear end.

4. Component injector according to claim 1, characterized in that the threaded sleeve (5) is provided coaxially with an anti-slip ring (9) at its rear end.

5. Component injector according to claim 1, characterized in that the control cartridge (2) is provided with a stop (10) at its rear end on each of the left and right sides.

6. Component injector according to claim 1, characterized in that the control cartridge (2) is made of transparent material and that the outer circumferential surface of the threaded sleeve (5) is provided with a marking ring (11) on its front side.