CN102416209A - Injector - Google Patents

Injector Download PDF

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Publication number
CN102416209A
CN102416209A CN2011103025276A CN201110302527A CN102416209A CN 102416209 A CN102416209 A CN 102416209A CN 2011103025276 A CN2011103025276 A CN 2011103025276A CN 201110302527 A CN201110302527 A CN 201110302527A CN 102416209 A CN102416209 A CN 102416209A
Authority
CN
China
Prior art keywords
syringe
latch
piston
plug
rubber plug
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN2011103025276A
Other languages
Chinese (zh)
Inventor
王一鳞
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JIANGSU MEIDEKANG INFORMATION TECHNOLOGY Co Ltd
Original Assignee
JIANGSU MEIDEKANG INFORMATION TECHNOLOGY Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JIANGSU MEIDEKANG INFORMATION TECHNOLOGY Co Ltd filed Critical JIANGSU MEIDEKANG INFORMATION TECHNOLOGY Co Ltd
Priority to CN2011103025276A priority Critical patent/CN102416209A/en
Publication of CN102416209A publication Critical patent/CN102416209A/en
Pending legal-status Critical Current

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  • Infusion, Injection, And Reservoir Apparatuses (AREA)

Abstract

The invention relates to a medical apparatus and instrument, in particular to an injector, which comprises a needle cylinder, a piston and a rubber plug which can slide in the needle cylinder, wherein the rubber plug is fixed to the top end of the piston; the shape of the rubber plug corresponds to that of the end part of the needle cylinder; a latch is arranged at the top end inside the needle cylinder and forms an angle with a needle cylinder wall; and a clamping groove which corresponds to the latch is formed at the top end of the rubber plug. After the structure is used, and when the piston pushes the rubber plug forwards to the latch, the latch enters the clamping groove along a clamping groove wall to clamp the positions of the rubber plug and the piston, so that the injector cannot be recycled. The disposable injector has a simple structure and is convenient to operate.

Description

Syringe
Technical field
The present invention relates to a kind of medical apparatus and instruments, particularly a kind of syringe.
Background technology
Many times need disposable syringe in the modern medical service, for example when vaccinate or infectable infection class medicine.
Chinese invention patent ublic specification of application CN 1795021A discloses a kind of disposable syringe.This disposable syringe comprises: syringe, its both ends open; Take over, it inserts a side of this syringe; Insertion tube during it inserts and should take over, and allows this adapter to contact with the inner periphery of this syringe is airtight; And piston, it inserts in this syringe.Though this disposable syringe effect aspect disposable safety is obvious, the complex structure of this disposable syringe, cost of manufacture is high.
Summary of the invention
The technical issues that need to address of the present invention provide a kind of disposable syringe simple in structure.
For solving above-mentioned technical problem; Syringe of the present invention comprises syringe, the piston that can in syringe, slide and plug; Said plug is fixed on the top of piston; The end shape of said plug and syringe adapts, and said syringe inner tip is provided with latch, said latch and needle cylinder wall angulation; Said plug top is provided with the draw-in groove that adapts with latch.
Be stained with the air adsorption layer on the said plug.
After adopting said structure, when piston was pushed ahead latch with plug, latch can enter into latch along the draw-in groove wall, and plug and position of piston are blocked, and so just cannot reuse.Whole disposable syringe simple in structure, easy to operate.
Description of drawings
Below in conjunction with the accompanying drawing and the specific embodiment the present invention is done further detailed explanation.
Fig. 1 is the structural representation of syringe of the present invention.
Among the figure: 1 is syringe, and 2 is plug, and 3 is piston, and 4 is latch, and 5 is draw-in groove, and 6 is the air adsorption layer
The specific embodiment
Syringe as shown in Figure 1 comprises syringe 1, the piston 3 and the plug 2 that can in syringe 1, slide, and said plug 2 is fixed on the top of piston 3, and said plug 2 adapts with the end shape of syringe 1, can plug 2 be advanced to the top of syringe 1 like this.Said syringe 1 inner tip is provided with latch 4, said latch 4 and syringe 1 wall angulation; Said plug 2 tops are provided with the draw-in groove 5 that adapts with latch 4; When like this piston 3 being advanced to the position of syringe top latch 4; Latch 4 can be stuck in the draw-in groove along draw-in groove 5 walls, so just cannot piston 3 be extracted out from syringe 1 again, has reached disposable purpose.
Be stained with air adsorption layer 6 on the said plug 2, air adsorption layer 6 can well absorb the air in the medicinal liquid, be inject more safe.

Claims (2)

1. syringe; Comprise syringe, the piston that can in syringe, slide and plug, said plug is fixed on the top of piston, and the end shape of said plug and syringe adapts; It is characterized in that: said syringe inner tip is provided with latch, said latch and needle cylinder wall angulation; Said plug top is provided with the draw-in groove that adapts with latch.
2. according to the described syringe of claim 2, go to be characterised in that: be stained with the air adsorption layer on the said plug.
CN2011103025276A 2011-09-29 2011-09-29 Injector Pending CN102416209A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2011103025276A CN102416209A (en) 2011-09-29 2011-09-29 Injector

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2011103025276A CN102416209A (en) 2011-09-29 2011-09-29 Injector

Publications (1)

Publication Number Publication Date
CN102416209A true CN102416209A (en) 2012-04-18

Family

ID=45941007

Family Applications (1)

Application Number Title Priority Date Filing Date
CN2011103025276A Pending CN102416209A (en) 2011-09-29 2011-09-29 Injector

Country Status (1)

Country Link
CN (1) CN102416209A (en)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2882653Y (en) * 2005-07-28 2007-03-28 王红光 Safety self-destroying disposable syringe
CN2885293Y (en) * 2006-04-14 2007-04-04 美迪科(上海)包装材料有限公司 Self-destruction type syringe
CN201290969Y (en) * 2008-09-10 2009-08-19 中山火炬开发区元创精密模具加工厂 Self-destroyed safety syringe
WO2011004137A1 (en) * 2009-07-10 2011-01-13 Oval Medical Technologies Limited A pre-filled syringe including an oxygen absorber
CN202236672U (en) * 2011-09-29 2012-05-30 江苏美德康信息科技有限公司 Hypodermic syringe

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN2882653Y (en) * 2005-07-28 2007-03-28 王红光 Safety self-destroying disposable syringe
CN2885293Y (en) * 2006-04-14 2007-04-04 美迪科(上海)包装材料有限公司 Self-destruction type syringe
CN201290969Y (en) * 2008-09-10 2009-08-19 中山火炬开发区元创精密模具加工厂 Self-destroyed safety syringe
WO2011004137A1 (en) * 2009-07-10 2011-01-13 Oval Medical Technologies Limited A pre-filled syringe including an oxygen absorber
CN202236672U (en) * 2011-09-29 2012-05-30 江苏美德康信息科技有限公司 Hypodermic syringe

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Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
C10 Entry into substantive examination
SE01 Entry into force of request for substantive examination
C02 Deemed withdrawal of patent application after publication (patent law 2001)
WD01 Invention patent application deemed withdrawn after publication

Application publication date: 20120418