CN216824372U

CN216824372U - Double-cavity mixing syringe

Info

Publication number: CN216824372U
Application number: CN202220090258.5U
Authority: CN
Inventors: 陈希
Original assignee: Individual
Current assignee: Individual
Priority date: 2022-01-14
Filing date: 2022-01-14
Publication date: 2022-06-28
Anticipated expiration: 2032-01-14

Abstract

The utility model discloses a but syringe that two-chamber mixes, including main injection tube, first injection chamber is seted up to main injection tube top surface, the sub-injection tube of slip grafting in the first injection chamber, the second injection chamber is seted up to sub-injection tube top surface, the second piston of slip grafting in the second injection chamber, the fixed scarf joint of second piston top surface promotes the plectane, it puts rigid coupling bracing piece bottom to promote plectane top surface central point, the plectane bottom surface is pressed to bracing piece top rigid coupling, the annular is seted up to sub-injection tube bottom surface lateral wall, the first piston of intra-annular rigid coupling. The utility model discloses set up two injection chambeies, can absorb two kinds of liquid medicines respectively and mix to the volume of absorbing of two kinds of liquid medicines of judgement that cooperation scale mark can be accurate guarantees the mixing proportion, and contrast traditional formula absorbs the mode of two kinds of liquid medicines in proper order, and the liquid medicine volume of absorbing changes accurate assurance, and it is also more convenient to use.

Description

Double-cavity mixing syringe

Technical Field

The utility model relates to the technical field of medical supplies, in particular to a double-cavity mixing injector.

Background

Syringes are a common medical device. As early as the 15 th century, kathler, italian, proposed the principle of the syringe. Gas or liquid is primarily drawn or injected with a needle. Syringes that can also be used for injection through rubber septa in medical devices, containers, scientific instruments such as those used in chromatography are an epoch-making revolution in the medical appliance field. This 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 areas which cannot be accessed 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 extracted, and the liquid or gas is extruded when the core rod is pushed in. In the current medical work, the situation that two kinds of liquid medicines are mixed and injected into a patient is often needed, and the current mode mainly uses a syringe to suck the two kinds of liquid medicines in sequence so that the liquid medicines in the syringe are mixed in an injection cavity, but the mode has the following defects:

the method is difficult to grasp the suction amount of the two kinds of liquid medicines, depends on the experience of an operator, and is inconvenient for a beginner to use.

To this end we propose a dual chamber mixing syringe to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a but syringe of two-chamber mixture to solve the problem that provides among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme: a double-cavity mixing injector comprises a main injection tube, wherein a first injection cavity is formed in the top surface of the main injection tube, a sub-injection tube is inserted in the first injection cavity in a sliding mode, a second injection cavity is formed in the top surface of the sub-injection tube, and a second piston is inserted in the second injection cavity in a sliding mode;

the fixed scarf joint of second piston top surface promotes the plectane, promote plectane top surface central point and put rigid coupling bracing piece bottom, the plectane bottom surface is pressed to bracing piece top rigid coupling, the annular is seted up to sub-injection tube bottom surface lateral wall, the first piston of annular internal rigid coupling.

Preferably, the first piston is in interference fit with the inner side wall of the first injection cavity, and the second piston is in interference fit with the inner side wall of the second injection cavity.

Preferably, the outer side wall of the sub-injection cylinder is provided with first scale marks, the outer side wall of the support rod is fixedly connected with a plurality of side plates, the top ends of the side plates are fixedly connected with the bottom surface of the pressing circular plate, the bottom ends of the side plates are fixedly connected with the top surface of the pushing circular plate, and one side wall of the side plate is provided with a second scale mark.

Preferably, the center position of the bottom surface of the main injection tube is fixedly connected with a main injection head, the center position of the bottom surface of the sub injection tube is fixedly connected with a sub injection head, the sub injection head is communicated with the second injection cavity, and the main injection head is communicated with the first injection cavity.

Preferably, the sub-injection head is inserted into the main injection head, the bottom end of the sub-injection head is located outside the main injection head, the sub-injection head is in clearance fit with the main injection head, two first ear plates are fixedly connected to two sides of the top end of the main injection tube respectively, and two second ear plates are fixedly connected to two sides of the top end of the sub-injection tube respectively.

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

the utility model discloses set up two injection chambeies, can absorb two kinds of liquid medicines respectively and mix to the volume of absorbing of two kinds of liquid medicines of judgement that cooperation scale mark can be accurate guarantees the mixing proportion, and contrast traditional formula absorbs the mode of two kinds of liquid medicines in proper order, and the liquid medicine volume of absorbing changes accurate assurance, and it is also more convenient to use.

Drawings

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

FIG. 2 is an enlarged structural view of the section structure of the present invention;

FIG. 3 is an enlarged structural view of the structure at A in FIG. 2 according to the present invention;

fig. 4 is a schematic diagram of the explosion structure of the present invention.

In the figure: 1. a main injection cylinder; 2. a sub-injection tube; 3. a second piston; 11. a primary injection head; 12. a first ear plate; 13. a first injection cavity; 21. a ring groove; 22. a first piston; 23. a sub-injection head; 24. a second ear panel; 25. a second injection cavity; 26. a first scale mark; 31. pushing the circular plate; 32. a support bar; 33. a side plate; 34. pressing the circular plate; 35. a second tick mark.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Example 1:

referring to fig. 1-3, the present invention provides a technical solution: a double-cavity mixing injector comprises a main injection tube 1, wherein a first injection cavity 13 is formed in the top surface of the main injection tube 1, a sub-injection tube 2 is inserted in the first injection cavity 13 in a sliding mode, a second injection cavity 25 is formed in the top surface of the sub-injection tube 2, and a second piston 3 is inserted in the second injection cavity 25 in a sliding mode;

the top surface of the second piston 3 is fixedly embedded with a pushing circular plate 31, the center of the top surface of the pushing circular plate 31 is fixedly connected with the bottom end of a supporting rod 32, the top end of the supporting rod 32 is fixedly connected with the bottom surface of a pressing circular plate 34, the outer side wall of the bottom surface of the sub-injection tube 2 is provided with an annular groove 21, a first piston 22 is fixedly connected in the annular groove 21, one liquid medicine is absorbed through the first injection cavity 13, and the other liquid medicine is absorbed through the second injection cavity 25, so that the mixing is convenient.

Example 2:

referring to fig. 2-3, the first piston 22 is in interference fit with the inner side wall of the first injection cavity 13, and the second piston 3 is in interference fit with the inner side wall of the second injection cavity 25.

Referring to fig. 2-3, the outer side wall of the sub-syringe 2 is provided with a first scale mark 26, the outer side wall of the support rod 32 is fixedly connected with a plurality of side plates 33, the top ends of the side plates 33 are fixedly connected with the bottom surface of the pressing circular plate 34, the bottom ends of the side plates 33 are fixedly connected with the top surface of the pushing circular plate 31, one side wall of one side plate 33 is provided with a second scale mark 35, and the volume of two kinds of liquid medicine during suction can be observed through the two scale marks, so that the proportion is more accurate.

Referring to fig. 2-3, the center of the bottom of the main injection tube 1 is fixedly connected with the main injection head 11, the center of the bottom of the sub injection tube 2 is fixedly connected with the sub injection head 23, the sub injection head 23 is communicated with the second injection cavity 25, the main injection head 11 is communicated with the first injection cavity 13, one kind of liquid medicine is sucked into the second injection cavity 25 through the sub injection head 23, and the other kind of liquid medicine is sucked into the first injection cavity 13 through the main injection head 11.

Referring to fig. 2-3, the sub-injection head 23 is inserted into the main injection head 11, the bottom end of the sub-injection head 23 is located outside the main injection head 11, the sub-injection head 23 is in clearance fit with the main injection head 11, two first ear plates 12 are fixedly connected to two sides of the top end of the main injection tube 1, and two second ear plates 24 are fixedly connected to two sides of the top end of the sub-injection tube 2.

Example 3:

when the utility model is used, the sub-injection head 23 and the main injection head 11 are arranged in one of the liquid medicine bottles, then the pressing circular plate 34 is pulled to drive the first piston 22 to move, at the moment, the sub-injection head 23 generates negative pressure, so that one of the liquid medicines enters the second injection cavity 25 from the sub-injection head 23, the main injection head 11 does not generate negative pressure and can not generate suction force, the sub-injection head 23 sucks one of the liquid medicines and simultaneously observes the second scale lines 35 to conveniently observe the suction amount, after the suction is completed, the main injection head 11 is arranged in the other liquid medicine bottle, then the sub-injection tube 2 is pulled, at the moment, the first piston 22 at the outer side of the bottom surface of the sub-injection tube 2 moves, so that the main injection head 11 generates negative pressure, the other liquid medicine is sucked into the first injection cavity 13 from the gap between the main injection head 11 and the sub-injection head 23, the suction amount of the other liquid medicine is grasped by observing the first scale lines 26, after the absorption is accomplished, invert this syringe to continue pulling sub-injection tube 2 with the air suction to first injection chamber 13 in, later promote to press down plectane 34 and drive second piston 3 and remove the liquid medicine injection in second injection chamber 25 and advance first injection chamber 13 in, mix, later promote the air escape of sub-injection tube 2 in with first injection chamber 13, can accomplish the mixture of two kinds of liquid medicines, the utility model discloses two injection chambers have been set up, can absorb two kinds of liquid medicines respectively and mix, and the cooperation scale mark can be accurate the absorption volume of two kinds of liquid medicines of judgement, guarantee the mixing proportion, contrast traditional mode of absorbing two kinds of liquid medicines in proper order says, and the liquid medicine absorption volume is changed accurate assurance, and it is also more convenient to use.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims

1. A syringe capable of dual-chamber mixing, comprising a main injection cartridge (1), characterized in that:

a first injection cavity (13) is formed in the top surface of the main injection tube (1), the sub injection tube (2) is inserted in the first injection cavity (13) in a sliding mode, a second injection cavity (25) is formed in the top surface of the sub injection tube (2), and a second piston (3) is inserted in the second injection cavity (25) in a sliding mode;

the fixed scarf joint of second piston (3) top surface promotes plectane (31), promote plectane (31) top surface central point and put rigid coupling bracing piece (32) bottom, bracing piece (32) top rigid coupling presses plectane (34) bottom surface, annular (21) are seted up to sub-injection tube (2) bottom surface lateral wall, first piston (22) of rigid coupling in annular (21).

2. The dual chamber mixable syringe of claim 1, wherein: the first piston (22) is in interference fit with the inner side wall of the first injection cavity (13), and the second piston (3) is in interference fit with the inner side wall of the second injection cavity (25).

3. The dual chamber mixable syringe of claim 1, wherein: first scale mark (26) are seted up to sub-injection tube (2) lateral wall, a plurality of curb plates (33) of bracing piece (32) lateral wall rigid coupling, it is a plurality of curb plate (33) top rigid coupling is pressing plectane (34) bottom surface, and is a plurality of curb plate (33) bottom rigid coupling promotes plectane (31) top surface, and one of them second scale mark (35) are seted up to curb plate (33) lateral wall.

4. The dual chamber mixable syringe of claim 1, wherein: the injection device is characterized in that a main injection head (11) is fixedly connected to the center of the bottom surface of the main injection tube (1), a sub injection head (23) is fixedly connected to the center of the bottom surface of the sub injection tube (2), the sub injection head (23) is communicated with the second injection cavity (25), and the main injection head (11) is communicated with the first injection cavity (13).

5. The dual chamber mixable syringe of claim 4, wherein: the injection device is characterized in that the sub-injection head (23) is inserted into the main injection head (11), the bottom end of the sub-injection head (23) is positioned on the outer side of the main injection head (11), the sub-injection head (23) is in clearance fit with the main injection head (11), two first ear plates (12) are fixedly connected to two sides of the top end of the main injection tube (1) respectively, and two second ear plates (24) are fixedly connected to two sides of the top end of the sub-injection tube (2) respectively.