CN202236666U

CN202236666U - Disposable sterile syringe

Info

Publication number: CN202236666U
Application number: CN2011203293538U
Authority: CN
Inventors: 李霞; 董合军; 徐玲
Original assignee: Chengdu Xinjin Shifeng Medical Instrument Co Ltd
Current assignee: Chengdu Xinjin Shifeng Medical Instrument Co Ltd
Priority date: 2011-09-05
Filing date: 2011-09-05
Publication date: 2012-05-30
Anticipated expiration: 2021-09-05

Abstract

The utility model relates to a disposable sterile syringe which is mainly composed of a outer casing, a syringe needle, a core bar in the outer casing and a piston head at the front end of the core bar, wherein the core bar is a cross shaft, is formed by two flaky bodies in axial decussation, and is provided with four axial blades; the front end of the core bar is connected with the piston head, the rear end of the core bar is a medicament pushing handle, and a disc is aranged at the middle part of the core bar; the disc is concentric with the core bar; the axial blade, at the rear part of the core bar and close to the handle, is protruded and supported on the inner wall of the outer casing; and the widths of the axial blades at the middle segment and the front segment of the core bar are smaller than that of the axial blade at the rear part of the core bar. According to the utility model, the disc at the middle part of the core bar is arranged in the outer casing and abuts against the outer casing, thus the stress of the core bar during working is guaranteed; and at the same time, the width of the axial blades of the core bar is reduced by more than 1/2, thus the raw materials are saved and social resources are saved. Meanwhile, the design scheme does not influence the normal injection molding of the core bar, thus the assembled syringe has better overall performance and the use of the syringe is not influenced.

Description

Disposable sterilized syringe

Technical field

This utility model relates to the disposable sterilized syringe in the medical apparatus and instruments.

Background technology

For avoiding cross infection, use present various medical spaces is disposable asepsis injector, because this kind syringe is disposable use; So annual employed quantity is very surprising, annual market demand is also very big; It is also many in the extreme to make the annual needed raw material of this kind product, and it promptly becomes medical waste after using, and generally is can not be used for back mixing to re-use; Processing method is carried out landfill after adopting more and burning or pulverize, and therefore, this kind syringe need consume a large amount of resources every year; Not being merely enterprise has increased manufacturing cost, has also consumed many social resources, does not meet the energy-saving and emission-reduction requirement of now being advocated; But, must use the disposable syringe of this kind, therefore because of the necessity of medical safety; Reduce this processing consumption of once using asepsis injector as much as possible, just become appropriateness to alleviate the way of resource consumption.

The utility model content

In order to reduce the processing consumption of disposable sterilized syringe, and consider the necessity of medical safety, this utility model provides a kind of organization plan of syringe, can appropriateness alleviate resource consumption.

This utility model is following: it mainly is made up of the core bar 4 in overcoat 2, syringe needle, the overcoat 2, the piston head 3 of core bar front end, and described core bar 4 is a cross axle, by two plates; Form through axial decussation; Formation has the core bar 4 of four bobbin leaves, and core bar 4 front ends connect piston head 3, and the rear end is for pushing away the medicine handle; Described core bar 4 middle parts are provided with a disk 1, and disk 1 is concentric with core bar 4; Core bar 4 rear portions are supported on the inwall of overcoat 2 near the axle leaf protrusion of handle position, and the axle leaf width of core bar 4 stage casings and leading portion is less than the width of core bar rear axle leaf.

Aforesaid core bar, illustrate further into, the axle leaf width of core bar 4 stage casings and leading portion is less than or equal to 1/2nd of core bar 4 rear axle leaf width.Disk 1 its external diameter at core bar 4 middle parts and the internal diameter of overcoat 4 are matched in clearance.

The beneficial effect of this utility model does, the core bar middle part has adopted a disk to rest in the overcoat, stressed when having guaranteed core bar work; The axle leaf width of core bar crops more than 1/2nd simultaneously, and thus, a syringe has just been practiced thrift a part of raw material; With every year employed a large amount of syringe calculate; The raw material that this kind design can be practiced thrift is quite surprising, and this just increases competitiveness to enterprise, has practiced thrift social resources.

Simultaneously, this kind design does not influence the normal injection moulding of core bar, has kept the original serviceability of syringe, and this product core bar stability is better than traditional core bar with stress performance, and the syringe overall performance after the assembling is better like this, and feel is better during clinical manipulation; The core bar style of this product design more helps injection moulding processing; Medical personnel can adopt the method for using same with conventional syringe, can not change the operation of medical workers custom.

Description of drawings

Fig. 1 this utility model uses sketch map;

Fig. 2 this utility model core bar structure figure;

The a-a cutaway view of Fig. 3 this utility model Fig. 2 core bar;

The b-b cutaway view of Fig. 4 this utility model Fig. 2 core bar.

The specific embodiment

Below in conjunction with accompanying drawing and embodiment this utility model is further specified.

This utility model mainly is made up of the core bar 4 in overcoat 2, syringe needle, the overcoat 2, the piston head 3 of core bar front end; Wherein, Overcoat 2, syringe needle, overcoat 2 piston heads 3 interior, the core bar front end can be traditional design, and core bar 4 front middle parts add one and the concentric disk 1 of core bar, and core bar 4 rear portions are near the axle leaf protrusion of handle position; Simultaneously, the width of the stage casing of core bar axle leaf and leading portion crops some.Just practiced thrift a large amount of raw materials thus.

In use, disk cooperates with the inwall of overcoat, in pushing away the medicine process; Guaranteed that core bar is not to lateral thrust; When pushing away medicine and be pushed into the second half section, core bar 4 rear portions partly cooperate with the inwall of overcoat 2 again near the axle leaf protrusion of handle position, have guaranteed that once more core bar is not to lateral thrust.

Combined accompanying drawing that the specific embodiment of this utility model has been carried out exemplary description above, obviously this utility model is not limited thereto, and the various remodeling that in this utility model scope, carry out all do not exceed the protection domain of this utility model.

Claims

1. disposable sterilized syringe, it mainly is made up of the piston head (3) of the core bar (4) in overcoat (2), syringe needle, the overcoat (2), core bar front end, and described core bar (4) is a cross axle; By two plates, form through axial decussation, form core bar with four bobbin leaves; Core bar (4) front end connects piston head (3), and the rear end is characterized in that for pushing away the medicine handle; Described core bar (4) middle part is provided with a disk (1), and disk (1) is concentric with core bar (4); Core bar (4) rear portion is supported on the inwall of overcoat (2) near the axle leaf protrusion of handle position, and the axle leaf width of core bar (4) stage casing and leading portion is less than the width of core bar rear axle leaf.

2. disposable sterilized syringe as claimed in claim 1 is characterized in that, the axle leaf width of core bar (4) stage casing and leading portion is less than or equal to 1/2nd of core bar (4) rear axle leaf width.

3. disposable sterilized syringe as claimed in claim 1 is characterized in that, its external diameter of disk (1) at core bar (4) middle part and the internal diameter of overcoat (4) are matched in clearance.