CN211244958U

CN211244958U - Multi-tube injector

Info

Publication number: CN211244958U
Application number: CN201921877197.1U
Authority: CN
Inventors: 王晶
Original assignee: Individual
Current assignee: Individual
Priority date: 2019-11-04
Filing date: 2019-11-04
Publication date: 2020-08-14
Anticipated expiration: 2029-11-04

Abstract

The utility model discloses a multi-tube injector, which comprises a cylindrical needle cylinder, wherein two or more than two cylindrical injector placing cavities are arranged on the inner side of the needle cylinder; one end of each of the two or more injector placing cavities, which is close to the injection needle interface, is provided with a single flow passage communicated with the main flow passage, and the other end of each injector placing cavity is provided with a limiting block matched with the opening part of the injector placing cavity; the two or more injector placing cavities are provided with lower push plates; the two or more injector placing cavities are internally provided with detachable injectors matched with the injector placing cavities; the side wall of the needle cylinder and the corresponding position of the injector placing cavity are provided with an access door; the access door is used for placing or taking out the injector. The utility model discloses a simple structure, reasonable in design can promote two syringes simultaneously in step in a cylinder, and can each liquid medicine injection volume's in two syringes of accurate control unanimity, improves the success rate of work efficiency and medicine debugging greatly.

Description

Multi-tube injector

Technical Field

The utility model relates to the field of medical treatment, especially, relate to a multitube syringe.

Background

The injector is a common medical appliance, and is commonly used for injecting medicines in hospitals, performing experiments in medicine, debugging medicines and the like. In the debugging of part of medicines, a plurality of different liquid medicines are required to be mixed according to the same proportion, however, in the traditional method, two hands respectively hold an injector filled with liquid medicines with different components, and the liquid medicines with different components are injected into a mixing container; due to the unbalanced force of the left hand and the right hand, the accurate and consistent injection amount of different liquid medicines is difficult to ensure, the debugging failure of the medicines is easy to cause, and the waste of manpower and material resources is caused; therefore, it is necessary to design a multi-tube injector of a novel structure to solve the above problems.

SUMMERY OF THE UTILITY MODEL

In order to overcome the defects of the prior art, the utility model aims to provide a multi-tube injector, simple structure, reasonable design can promote two injectors simultaneously in step in a cylinder, and can be accurate control in two injectors each liquid medicine injection volume unanimous, improves the success rate of work efficiency and medicine debugging greatly.

The utility model discloses the technical scheme who adopts as follows:

a multi-tube injector comprises a cylindrical needle cylinder and is characterized in that a syringe needle interface is arranged at the central position of the front end face of the needle cylinder, and a main flow passage which penetrates through the syringe needle interface from front to back is formed in the inner side of the syringe needle interface;

the inner side of the needle cylinder is provided with two or more cylindrical injector placing cavities along the direction of the front end face from the rear end face of the needle cylinder; one end of each of the two or more injector placing cavities, which is close to the injection needle interface, is provided with a single flow passage communicated with the main flow passage, and the other end of each injector placing cavity is provided with a limiting block matched with the opening part of the injector placing cavity; one ends of the two or more single channels close to the main channel are communicated with the main channel after being intersected;

the two or more injector placing cavities are communicated from the middle to the opening part; the two or more injector placing cavities are internally provided with a lower push plate, and the lower push plates are in sliding fit with the inner surfaces of the injector placing cavities;

the two or more injector placing cavities are internally provided with detachable injectors matched with the injector placing cavities; the injector is positioned below the lower push plate;

the side wall of the needle cylinder and the corresponding position of the injector placing cavity are provided with an access door; the access door is used for placing or taking out the injector.

Preferably, a push rod or a spring which is coaxial with the injector placing cavity is arranged on the surface of the lower push plate close to the limiting block; the other end of the push rod or the spring penetrates through the limiting block and then extends to the outer side of the needle cylinder to be fixedly connected with the upper push plate.

Preferably, a buckle connected with the side wall of the syringe is arranged on one side of the access door.

Preferably, a detachable injection needle is arranged at the front end of the injection needle interface, and a needle cavity of the injection needle is communicated with a main flow passage of the injection needle interface.

Preferably, the material of syringe and access door is transparent plastics or glass.

Compared with the prior art, the beneficial effects of the utility model reside in that:

two injector placing cavities are arranged on the inner side of the needle cylinder, and an access door for placing and taking out the injector is arranged on the side wall of the needle cylinder; the lower push plate is arranged in the injector placing cavity and is in sliding fit with the inner surface of the injector placing cavity, the lower push plate can simultaneously push the injectors in the two injector placing cavities to inject the liquid medicine under the action of external force, the two injectors can be synchronously pushed in one needle cylinder, the injection amount of each liquid medicine in the two injectors can be accurately controlled to be consistent, and the work efficiency and the success rate of medicine debugging are greatly improved.

Drawings

Fig. 1 is a front view of the present invention;

FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1;

FIG. 3 is a front view of another configuration of the present invention;

FIG. 4 is a schematic cross-sectional view taken along line B-B of FIG. 3;

wherein: the injection device comprises a needle cylinder 1, an injector 2, a lower push plate 3, a piston 4, an injection needle 5, a buckle 6, a limiting block 7, a push rod 8, a spring 9, an injector placing cavity 11, a single flow passage 12, an injection needle opening 13, an access door 14 and a main flow passage 131.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully hereinafter with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "front," "back," "left," "right," "up," "down," and the like as used herein are for illustrative purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

The invention will be further described with reference to the accompanying drawings and specific embodiments:

as shown in fig. 1-4, a multi-tube injector comprises a cylindrical syringe 1, and is characterized in that an injection needle interface 13 is arranged at the central position of the front end surface of the syringe 1, and a main flow channel 131 penetrating through the syringe 13 is arranged on the inner side of the injection needle interface;

the inner side of the needle cylinder 1 is provided with two or more cylindrical injector placing cavities 11 along the direction of the front end face from the rear end face of the needle cylinder 1; one end of each of the two or more injector placing cavities 11, which is close to the injection needle interface 13, is provided with a single flow passage 12 communicated with the main flow passage 131, and the other end is provided with a limiting block 7 matched with the opening part of the injector placing cavity 11; one ends of the two or more single channels 12 close to the main channel 131 are intersected and then communicated with the main channel 131.

The two or more syringe accommodating chambers 11 are communicated with each other from the middle to the opening; the two or more injector placing cavities 11 are internally provided with a lower push plate 3, and the lower push plates 3 are in sliding fit with the inner surfaces of the injector placing cavities 11; guarantee that push pedal 3 slides stably in pushing the syringe and placing chamber 11, improve this utility model's controllability.

The two or more injector placing cavities 11 are internally provided with detachable injectors 2 matched with the injector placing cavities 11; the injector 2 is positioned below the lower push plate 3;

the side wall of the needle cylinder 1 and the corresponding position of the injector placing cavity 11 are provided with an access door 14; the access door 14 is used for placing or removing the syringe 2.

Further, as shown in fig. 2 and 4, a push rod 8 or a spring 9 which is coaxially arranged with the injector placing cavity 11 is arranged on the surface of the lower push plate 3 close to the limiting block 7; the other end of the push rod 8 or the spring 9 penetrates through the limiting block 7 and then extends to the outer side of the needle cylinder 1 to be fixedly connected with the upper push plate 4; through setting up spring 9, can play pressurization, buffering effect in the in-process of propelling the syringe.

Furthermore, a buckle 6 connected with the side wall of the needle cylinder 1 is arranged on one side of the access door 14; when the access door 14 is in a closed state, the access door 14 is fixedly connected with the needle cylinder through the buckle 6.

Further, a detachable injection needle 5 is arranged at the front end of the injection needle interface 13, and a needle cavity of the injection needle 5 is communicated with a main flow passage 131 of the injection needle interface 13; by the design of the structure, two different kinds of liquid medicines can be fully mixed with each other and then flow to the main channel 131.

Furthermore, the material of the needle cylinder 1 and the access door 14 is transparent plastic or glass.

In the embodiment, two syringe placing cavities 11 are arranged in the syringe, and the lower push plate 3 is positioned at the bottom end (the end close to the limiting block 7) of the syringe placing cavity 11 at the beginning; the specific use steps are as follows:

the method comprises the following steps: preparing two syringes 2 in advance, and injecting different types of liquid medicines with the same volume into the two syringes 2;

step two: opening the access doors 14 of the syringe 1 corresponding to the two syringe placing cavities 11, and placing the two syringes 2 filled with liquid medicine in the syringe placing cavities 11 respectively; then the access door 14 is closed, and the access door 14 is locked through the buckle 6;

step three: then one hand holds the needle cylinder 1, the other hand holds the position of the upper push plate 4, then the upper push plate 4 is pushed forcefully, and the lower push plate 10 is driven to slide downwards along the injector placing cavity 11 under the action of the spring 9 or the push rod 8; so that the syringes 2 placed in the two syringe placing chambers 11 inject the same amount of different kinds of medical liquids under the thrust of the lower push plate 3 until the set amount of medical liquids are injected.

In summary, the utility model arranges two injector placing cavities 11 at the inner side of the syringe, and arranges an access door 14 for placing and taking out the injector 2 on the side wall of the syringe 1; simultaneously place the chamber 11 at the syringe and set up the lower push plate 3 of placing the interior surface sliding fit of chamber 11 with the syringe in the syringe, lower push plate 3 can promote simultaneously and place 2 injection liquid medicines of syringe in two syringe placing chambers 11 under the effect of external force, has realized that two syringes 2 can be promoted simultaneously in step in a cylinder, and can the unanimity of each liquid medicine injection volume in two syringes 2 of accurate control, improves the success rate of work efficiency and medicine debugging greatly.

Various other modifications and changes may be made by those skilled in the art based on the above-described technical solutions and concepts, and all such modifications and changes are intended to fall within the scope of the present invention.

Claims

1. A multi-tube injector comprises a cylindrical needle cylinder and is characterized in that a syringe needle interface is arranged at the central position of the front end face of the needle cylinder, and a main flow passage which penetrates through the syringe needle interface from front to back is formed in the inner side of the syringe needle interface;

2. A multi-tube injector according to claim 1, characterized in that the surface of the lower push plate close to the limiting block is provided with a push rod or a spring which is coaxial with the injector placing cavity; the other end of the push rod or the spring penetrates through the limiting block and then extends to the outer side of the needle cylinder to be fixedly connected with the upper push plate.

3. A multi-barrel injector as claimed in claim 1, wherein a side of the access door is provided with a catch for engaging with a side wall of the barrel.

4. A multiple syringe according to claim 1 in which the needle hub is provided with a removable needle at its forward end, the needle chamber of the needle communicating with the main flow path of the needle hub.

5. A multi-barrel syringe as claimed in claim 1, wherein the barrel and access door are of transparent plastics or glass.