CN215690618U

CN215690618U - Syringe convenient to distinguish injection

Info

Publication number: CN215690618U
Application number: CN202121019609.5U
Authority: CN
Inventors: 张莉
Original assignee: Shanghai Pulmonary Hospital
Current assignee: Shanghai Pulmonary Hospital
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2022-02-01
Anticipated expiration: 2031-05-13

Abstract

The utility model discloses an injector convenient for distinguishing injection, which relates to the field of injectors and comprises an injector body, a splicing mechanism and an injection mechanism, wherein a first piston rod penetrating to the outer side of the injector body is arranged inside the injector body, a second piston rod penetrating to the outer side of the first piston rod is arranged inside the first piston rod, and a first piston plate is arranged at one end of the first piston rod. According to the utility model, the splicing mechanism is arranged to enable one end of the U-shaped clamping block to be buckled on the outer side of the needle base tube when the needle base tube is inserted into the first connecting sleeve, so that the first connecting sleeve and the second connecting sleeve can be separated, meanwhile, the first connecting sleeve is connected with the needle base tube, and then, a worker only needs to observe the colors of the outer sides of the first connecting sleeve and the second connecting sleeve to match the delay tube with the injector body, so that the effect of quickly matching the delay tube with the injector body is realized.

Description

Syringe convenient to distinguish injection

Technical Field

The utility model relates to the field of injectors, in particular to an injector convenient for distinguishing injection.

Background

The injector is a common medical appliance, and as early as the 15 th century, kathler, italian, proposed the principle of the injector, which mainly uses a needle to extract or inject gas or liquid, and the injector can also be used for medical equipment, containers, and scientific instruments such as those in chromatography to inject through a rubber septum.

However, in the general injector, after the injection is finished, medicine still remains in the needle hub tube at one end of the injector, and at the moment, the medicine in the needle hub tube cannot be discharged, so that the medicine is wasted; and difficult syringe and delay tube match, and in multiple liquid medicine simultaneous injection process, its syringe takes place the confusion with the delay tube easily when its syringe changes the interpolation liquid medicine, so can cause the mixture of partial medicine to cause the influence to the use of medicine.

SUMMERY OF THE UTILITY MODEL

The utility model aims to: in order to solve the problems that the medicine in the needle stand pipe cannot be discharged and the injector and the delay pipe cannot be matched quickly, the injector convenient for distinguishing the injection is provided.

In order to achieve the purpose, the utility model provides the following technical scheme: an injector convenient for distinguishing injection comprises an injector body, a splicing mechanism and an injection mechanism, wherein a first piston rod penetrating to the outer side of the injector body is arranged inside the injector body;

the injection mechanism comprises a triangular block positioned on the outer side of the injector body, a positioning hole is formed in the outer side of the second piston rod, a positioning pin penetrating to the outer side of the first piston rod is arranged in the first piston rod and positioned on the outer side of the second piston rod, and a second expansion spring is arranged in the first piston rod and positioned on the outer side of the positioning pin;

the splicing mechanism comprises a first connecting sleeve located on the outer side of the needle seat tube, a second connecting sleeve is arranged at one end of the first connecting sleeve, a delay tube is arranged at one end of the second connecting sleeve, a U-shaped clamping block penetrating to the outer side of the first connecting sleeve is arranged inside the first connecting sleeve, a first telescopic spring is arranged on the outer side of the U-shaped clamping block and on the outer side of the first connecting sleeve, and a limiting slide block is arranged inside the U-shaped clamping block and on the first connecting sleeve.

As a still further scheme of the utility model: the inner side of the first piston rod is provided with a limiting groove matched with the second piston rod, and the inner side of the first piston plate is provided with a through hole matched with the second piston plate.

As a still further scheme of the utility model: the needle holder is characterized in that a clamping groove matched with one end of the U-shaped clamping block is formed in the outer side of the needle holder tube, a sliding groove matched with the limiting sliding block is formed in the first connecting sleeve, and a clamping groove matched with the other end of the U-shaped clamping block is formed in the outer side of the second connecting sleeve.

As a still further scheme of the utility model: one end of the positioning pin is provided with a through hole matched with the triangular block, and a sliding groove matched with the positioning pin is arranged in the first piston rod.

As a still further scheme of the utility model: the number of the U-shaped clamping blocks is two, and the two U-shaped clamping blocks are symmetrically arranged along the vertical central axis of the first connecting sleeve.

As a still further scheme of the utility model: the first piston plate is attached to the inner wall of the injector body, and the diameter of the second piston plate is equal to that of the inner wall of the needle seat tube.

Compared with the prior art, the utility model has the beneficial effects that:

1. when the needle base pipe is inserted into the first connecting sleeve, one end of the U-shaped clamping block is buckled on the outer side of the needle base pipe through the arrangement of the splicing mechanism, so that the first connecting sleeve and the second connecting sleeve can be separated, meanwhile, the first connecting sleeve is connected with the needle base pipe, and then, a worker only needs to observe the colors of the outer sides of the first connecting sleeve and the second connecting sleeve to match the delay pipe with the injector body, so that the effect of quickly matching the delay pipe with the injector body is realized;

2. make first piston plate promote this internal medicine of syringe and remove through setting up injection mechanism to in injecting this internal medicine of syringe into delay tube, in the locating pin was just in time buckled completely to the triangle-shaped piece when first piston plate and syringe body bottom contact, thereby made the one end and the locating hole separation of locating pin, press the second piston rod once more alright make the second piston plate get into in the needle file pipe, with this medicine exhaust effect to reaching the needle file intraductal.

Drawings

FIG. 1 is a schematic structural view of the present invention;

FIG. 2 is a schematic view of the connection of a first piston rod to a second piston rod in accordance with the present invention;

FIG. 3 is a schematic view of the connection of the first and second connection sleeves of the present invention;

fig. 4 is a schematic view of the connection of a first piston plate to a second piston plate according to the present invention.

In the figure: 1. an injector body; 2. a first piston rod; 3. a second piston rod; 4. positioning pins; 5. a triangular block; 6. a needle hub tube; 7. a first connecting sleeve; 8. a second connecting sleeve; 9. a delay tube; 10. a U-shaped clamping block; 11. a first extension spring; 12. Positioning holes; 13. a second extension spring; 14. a limiting slide block; 15. a first piston plate; 16. a second piston plate.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "disposed" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art. The following describes an embodiment of the present invention based on its overall structure.

Referring to fig. 1 to 4, in an embodiment of the present invention, an injector convenient for distinguishing injection includes an injector body 1, a splicing mechanism, and an injection mechanism, a first piston rod 2 penetrating to an outer side of the injector body 1 is disposed inside the injector body 1, a second piston rod 3 penetrating to an outer side of the first piston rod 2 is disposed inside the first piston rod 2, a first piston plate 15 is disposed at one end of the first piston rod 2, a second piston plate 16 is disposed at one end of the second piston rod 3, and a needle seat tube 6 is disposed at one end of the injector body 1;

the injection mechanism comprises a triangular block 5 positioned on the outer side of the injector body 1, a positioning hole 12 is arranged on the outer side of the second piston rod 3, a positioning pin 4 penetrating to the outer side of the first piston rod 2 is arranged on the outer side of the second piston rod 3 in the first piston rod 2, and a second expansion spring 13 is arranged on the outer side of the positioning pin 4 in the first piston rod 2;

wherein, splicing mechanism is including being located the first adapter sleeve 7 in the needle holder pipe 6 outside, the one end of first adapter sleeve 7 is provided with second adapter sleeve 8, and the one end of second adapter sleeve 8 is provided with delay tube 9, the inside of first adapter sleeve 7 is provided with the U-shaped fixture block 10 that runs through to the first adapter sleeve 7 outside, the outside of U-shaped fixture block 10 and the outside that is located first adapter sleeve 7 are provided with first expanding spring 11, the inside that the outside of U-shaped fixture block 10 is located first adapter sleeve 7 is provided with stop block 14.

Please refer to fig. 1 and 4, the inner side of the first piston rod 2 is provided with a limiting groove engaged with the second piston rod 3, and the inner side of the first piston plate 15 is provided with a through hole matched with the second piston plate 16, so as to facilitate the movement of the second piston rod 3.

Please refer to fig. 1 and 3, a locking groove engaged with one end of the U-shaped locking block 10 is disposed on the outer side of the needle holder tube 6, a sliding groove matched with the limiting sliding block 14 is disposed inside the first connecting sleeve 7, and a locking groove engaged with the other end of the U-shaped locking block 10 is disposed on the outer side of the second connecting sleeve 8, so that one end of the U-shaped locking block 10 can be conveniently locked into the outer side of the needle holder tube 6.

Please refer to fig. 1, one end of the positioning pin 4 is provided with a through hole matching with the triangular block 5, and the first piston rod 2 is internally provided with a sliding groove matching with the positioning pin 4, so as to move through the positioning pin 4.

Please refer to fig. 3, the number of the U-shaped blocks 10 is two, and the two U-shaped blocks 10 are symmetrically disposed along the vertical central axis of the first connecting sleeve 7, so as to facilitate the connection between the first connecting sleeve 7 and the second connecting sleeve 8 through the U-shaped blocks 10.

Please refer to fig. 1 and 4, the first piston plate 15 is attached to the inner wall of the syringe body 1, and the second piston plate 16 has the same diameter as the inner wall of the needle hub 6, so as to push the medicine through the first piston plate 15 and the second piston plate 16.

The working principle of the utility model is as follows: when the device is used, the second connecting sleeve 8 can be held firstly, then the syringe body 1 with medicine inside is inserted into the first connecting sleeve 7, at the moment, the needle base tube 6 can be inserted into the first connecting sleeve 7, the needle base tube 6 can push the U-shaped clamping block 10 to move towards the outer side of the first connecting sleeve 7 when entering the first connecting sleeve 7, the first expansion spring 11 extends, at the moment, one end of the U-shaped clamping block 10 is buckled at the outer side of the needle base tube 6, at the same time, the other end of the U-shaped clamping block 10 is separated from the second connecting sleeve 8, then the second piston rod 3 is pressed, at the moment, the second piston rod 3 and the first piston rod 2 simultaneously move downwards, so that the medicine in the syringe body 1 is injected into the delay tube 9 through the first connecting sleeve 7 and the second connecting sleeve 8, when the medicine in the syringe body 1 is completely pushed into the delay tube 9, the triangular block 5 is just buckled at one end of the positioning pin 4 completely, at the moment, the positioning pin 4 is separated from the positioning hole 12, the second piston rod 3 is continuously pressed, the second piston rod 3 pushes the second piston plate 16, the second piston plate 16 enters the needle holder tube 6, so that the medicine remained in the needle holder tube 6 is pushed, and therefore, the medicine can be completely injected into the delay tube 9, so that the waste of the medicine is prevented, when the injector body 1 is drawn out, because one end of the U-shaped clamping block 10 is buckled at the outer side of the needle holder tube 6, the first connecting sleeve 7 is separated from the second connecting sleeve 8, when the medicine is injected into the delay tube 9 again, the quick matching is realized only by matching the colors at the outer sides of the first connecting sleeve 7 and the second connecting sleeve 8, so that the phenomenon of disordered matching between the injector body 1 and the delay tube 9 is avoided, after the injection is finished, one end of the U-shaped clamping block 10 can be separated from the needle holder tube 6 by pulling the U-shaped clamping block 10, meanwhile, the other end of the U-shaped fixture block 10 can be buckled into the outer side of the second connecting sleeve 8, so that the first connecting sleeve 7 and the second connecting sleeve 8 can be connected for the next use.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the scope of the present invention, and the technical solutions and the utility model concepts of the present invention are equivalent to or changed within the scope of the present invention.

Claims

1. The injector convenient for distinguishing the injection comprises an injector body (1), a splicing mechanism and an injection mechanism, and is characterized in that a first piston rod (2) penetrating to the outer side of the injector body (1) is arranged inside the injector body (1), a second piston rod (3) penetrating to the outer side of the first piston rod (2) is arranged inside the first piston rod (2), a first piston plate (15) is arranged at one end of the first piston rod (2), a second piston plate (16) is arranged at one end of the second piston rod (3), and a needle seat tube (6) is arranged at one end of the injector body (1);

the injection mechanism comprises a triangular block (5) positioned on the outer side of the injector body (1), a positioning hole (12) is formed in the outer side of the second piston rod (3), a positioning pin (4) penetrating to the outer side of the first piston rod (2) is arranged in the first piston rod (2) and positioned on the outer side of the second piston rod (3), and a second expansion spring (13) is arranged in the first piston rod (2) and positioned on the outer side of the positioning pin (4);

wherein, splicing mechanism is including first adapter sleeve (7) that is located needle holder pipe (6) outside, the one end of first adapter sleeve (7) is provided with second adapter sleeve (8), and the one end of second adapter sleeve (8) is provided with delay tube (9), the inside of first adapter sleeve (7) is provided with U-shaped fixture block (10) that runs through to first adapter sleeve (7) outside, the outside of U-shaped fixture block (10) and the outside that is located first adapter sleeve (7) are provided with first expanding spring (11), the inside that the outside of U-shaped fixture block (10) is located first adapter sleeve (7) is provided with stop block (14).

2. The syringe convenient for distinguishing injections according to claim 1, wherein the inner side of the first piston rod (2) is provided with a limiting groove matched with the second piston rod (3), and the inner side of the first piston plate (15) is provided with a through hole matched with the second piston plate (16).

3. The injector convenient for distinguishing injections according to claim 1, wherein a clamping groove matched with one end of the U-shaped clamping block (10) is formed in the outer side of the needle holder tube (6), a sliding groove matched with the limiting sliding block (14) is formed in the first connecting sleeve (7), and a clamping groove matched with the other end of the U-shaped clamping block (10) is formed in the outer side of the second connecting sleeve (8).

4. The syringe convenient for distinguishing the injection according to claim 1, wherein one end of the positioning pin (4) is provided with a through hole matched with the triangular block (5), and the inside of the first piston rod (2) is provided with a sliding groove matched with the positioning pin (4).

5. The syringe for distinguishing injection liquid conveniently according to claim 1 is characterized in that the number of the U-shaped clamping blocks (10) is two, and the two U-shaped clamping blocks (10) are symmetrically arranged along the vertical central axis of the first connecting sleeve (7).

6. An injector for facilitating the differentiation of injections as claimed in claim 1, characterized in that the first piston plate (15) is in contact with the inner wall of the injector body (1) and the second piston plate (16) is of the same diameter as the inner wall of the needle holder tube (6).