CN213667301U

CN213667301U - Disposable syringe

Info

Publication number: CN213667301U
Application number: CN202021704451.0U
Authority: CN
Inventors: 郑晓波
Original assignee: Changzhou Huichun Medical Equipment Co ltd
Current assignee: Changzhou Huichun Medical Equipment Co ltd
Priority date: 2020-08-14
Filing date: 2020-08-14
Publication date: 2021-07-13
Anticipated expiration: 2030-08-14

Abstract

The utility model relates to the technical field of medical equipment, in particular to a disposable injector, which comprises an injection cylinder body with an injection cavity, a piston, a top block, an adjusting rod and a push rod, wherein one end of the injection cylinder body is provided with a needle body communicated with the injection cavity, the piston is arranged in the injection cavity in a sliding way, the push rod is arranged at one end of the piston far away from the needle body, the adjusting rod is sleeved on the outer peripheral surface of the push rod and can rotate relative to the push rod, the top block is connected on the adjusting rod in a threaded way, one end of the top block close to the piston is provided with a sharp thorn part for puncturing a film, the piston is provided with a through hole penetrating through two ends along the displacement direction thereof, the piston is positioned on the through hole and is coated with the film which can be punctured, the through hole is arranged corresponding to the sharp thorn part, the film is positioned in the injection cavity, the top block is, so that the injection cavity of the injection cylinder is communicated with the outside, and the injection cylinder cannot inject.

Description

Disposable syringe

Technical Field

The utility model belongs to the technical field of the medical instrument technique and specifically relates to a disposable syringe is related to.

Background

The injector is a medical apparatus with wide application, and is used for subcutaneous injection, intramuscular injection, intravenous injection and the like, the structure of the traditional injector mainly comprises a needle cylinder, a piston, a core bar and a needle head, and when the injector is used, the liquid medicine in the needle cylinder is ejected from the needle head by pushing the core bar and utilizing the piston on the core bar; at present, the injector can be used continuously after being used once, and medical care personnel can easily pick up the used injector by lawbreakers for reuse after discarding the used injector once, so that cross infection is easy to occur, and particularly, the situations of spreading hepatitis and AIDS and the like can occur.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is: in order to solve the problem that the existing syringe can be used continuously after being used once, and medical care personnel can easily pick up the used syringe for reuse by lawbreakers after discarding the used syringe once, so that cross infection is easy to occur, and particularly, the situations of spreading hepatitis, AIDS and the like can occur, a disposable syringe is provided.

The utility model provides a technical scheme that its technical problem adopted is: the utility model provides a disposable syringe, is including having injection barrel, piston, kicking block, regulation pole and the push rod in injection chamber, the one end of injection barrel is equipped with the needle body with injection chamber intercommunication, the piston slides and sets up in the injection chamber, the push rod sets up the one end of keeping away from the needle body at the piston, it establishes on the outer peripheral face of push rod and can rotate the push rod relatively to adjust the pole cover, kicking block threaded connection is on adjusting the pole, the one end that is close to the piston on the kicking block is provided with the spine portion that is used for puncturing the film, the piston is seted up the through-hole that runs through both ends along its displacement direction, the piston is located the cladding on the through-hole and has the film that can be punctured, the through-hole corresponds the.

The utility model discloses a rotation is adjusted the pole and is driven the kicking block displacement to make spine portion on the kicking block to the displacement of film direction, pierce through the film until spine portion, just so make the injection chamber and the outside intercommunication of injection barrel, thereby make the injection barrel can't inject.

In order to better enable the injection cavity to be communicated with the outside after being pierced, the spike part is further provided with a channel along the displacement direction, and the through hole penetrates through the other end of the ejector block from one end of the spike part. The injection cavity is communicated with the outside by arranging a channel penetrating through the two ends on the sharp thorn part.

In order to facilitate the operation, a flange is further arranged at one end of the adjusting rod, which is far away from the piston. Through setting up the flange on adjusting the pole, the staff control of being convenient for of flange adjusts the pole and rotates.

The utility model has the advantages that: the utility model discloses disposable syringe is when using, adjust the pole through rotating and drive the kicking block displacement, and make spine portion on the kicking block to the displacement of film direction, pierce through the film until spine portion, just so make the injection chamber and the outside intercommunication of injection barrel, thereby make injection barrel can't inject, avoided present syringe once can continue to use after using, medical personnel abandon the back at the syringe that will use once, easily pick up the reuse by lawless persons, thereby cross infection appears easily, especially the problem that the condition such as hepatitis and AIDS will appear propagating.

Drawings

The present invention will be further explained with reference to the drawings and examples.

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

fig. 2 is a partially enlarged view of a in fig. 1.

In the figure: 1. the injection device comprises an injection cylinder body, 2, an injection cavity, 3, a piston, 4, a top block, 5, an adjusting rod, 6, a push rod, 7, a needle body, 8, a sharp part, 9, a through hole, 10, a film, 11, a channel, 12 and a flange.

Detailed Description

The utility model discloses the following embodiment of combining does further detailing:

the utility model discloses not confine the following embodiment to, general technical personnel in this field can adopt other multiple embodiment to implement according to the utility model discloses a, perhaps all adopt the utility model discloses a design structure and thinking do simple change or change, all fall into the utility model discloses a protection scope. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used merely for convenience of description and for simplicity of description, and 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 therefore, should not be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; 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 meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

As shown in fig. 1-2, a single use syringe includes a syringe barrel 1 having a syringe chamber 2, a plunger 3, a top block 4, an adjusting lever 5 and a push rod 6, one end of the injection cylinder body 1 is provided with a needle body 7 communicated with the injection cavity 2, the piston 3 is arranged in the injection cavity 2 in a sliding way, the push rod 6 is arranged at one end of the piston 3 far away from the needle body 7, the adjusting rod 5 is sleeved on the outer peripheral surface of the push rod 6 and can rotate relative to the push rod 6, the top block 4 is connected with the adjusting rod 5 by screw thread, one end of the top block 4 close to the piston 3 is provided with a sharp part 8 for puncturing the film 10, the piston 3 is provided with a through hole 9 penetrating through two ends along the displacement direction, the piston 3 is positioned on the through hole 9 and is coated with a film 10 which can be punctured, the through hole 9 is arranged corresponding to the spine part 8, and the film 10 is positioned in the injection cavity 2.

The spine part 8 is provided with a channel 11 along the displacement direction, and the through hole 9 penetrates through the other end of the top block 4 from one end of the spine part 8.

The end of the adjusting rod 5 far away from the piston 3 is provided with a flange 12.

Above-mentioned disposable syringe is when using, the pulling push rod 6 makes outside medium enter into injection chamber 2 of injection barrel 1 through needle body 7 in, until totally with medium input to injection chamber 2 in, when needs are injected, promote push rod 6 and drive piston 3 and displace in injection chamber 2, piston 3 passes through needle body 7 output with the medium in the injection chamber 2, until exporting the medium, after practical, through rotating flange 12 on adjusting pole 5, adjust pole 5 and rotate and drive kicking block 4 to 3 direction displacements of piston on push rod 6, thereby make 8 to 10 direction displacements of film of spine portion, pierce through 8 portions of spine portion and pierce through film 10 and pierce through, passageway 11 and injection chamber 2 intercommunication on the spine portion 8.

In light of the foregoing, it will be apparent to those skilled in the art from this disclosure that various changes and modifications can be made without departing from the spirit and scope of the invention. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.

Claims

1. A single use syringe characterized by: comprises an injection cylinder (1) with an injection cavity (2), a piston (3), a top block (4), an adjusting rod (5) and a push rod (6), wherein one end of the injection cylinder (1) is provided with a needle body (7) communicated with the injection cavity (2), the piston (3) is arranged in the injection cavity (2) in a sliding way, the push rod (6) is arranged at one end of the piston (3) far away from the needle body (7), the adjusting rod (5) is sleeved on the outer peripheral surface of the push rod (6) and can rotate relative to the push rod (6), the top block (4) is in threaded connection with the adjusting rod (5), one end of the top block (4) close to the piston (3) is provided with a sharp piercing part (8) for piercing a film (10), the piston (3) is provided with a through hole (9) penetrating through two ends along the displacement direction thereof, the piston (3) is positioned on the through hole (9) and is coated with the film (10) which, the through hole (9) and the spine part (8) are arranged correspondingly, and the film (10) is positioned in the injection cavity (2).

2. A single use syringe as claimed in claim 1, wherein: the spine part (8) is provided with a channel (11) along the displacement direction, and the through hole (9) penetrates through the other end of the ejector block (4) from one end of the spine part (8).

3. A single use syringe as claimed in claim 1, wherein: and a flange (12) is arranged at one end of the adjusting rod (5) far away from the piston (3).