CN202236709U

CN202236709U - Breaking-type forced self-destruction syringe

Info

Publication number: CN202236709U
Application number: CN2011201589142U
Authority: CN
Inventors: 阎圣渝
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-05-18
Filing date: 2011-05-18
Publication date: 2012-05-30
Anticipated expiration: 2021-05-18

Abstract

The utility model discloses a breaking-type forced self-destruction syringe, which is used for avoiding the phenomenon that all diseases are in cross infection because of sharing the syringe. The complex structure and the high price of various forced self-destruction syringes are improved. The breaking-type forced self-destruction syringe has the characteristics that the neck part of a syringe barrel is provided with a hollow barb; an injection device piston is a sealed air sac; and the syringe is formed by the two piece set, so that structure is simple. When liquid is pushed by the injection device, the hollow barb pierces the front part of the piston air sac to pre-destruct by self. When all liquids are pushed by the injection device, the barb on the neck part of the syringe barrel is broken by the bottom of the air sac. When the piston air sac and the barb of the syringe barrel are both broken and destructed by self, functions of pumping and transfusing are lost to achieve the purpose of forced self-destruction.

Description

Breaking forced self-destruction syringe

Affiliated technical field:

This is practical to relate to a kind of breaking forced self-destruction syringe, can prevent to repeat the shared cross infection of disease that causes, and belongs to Dispoable medical consumptive material field.

Technical background:

First generation glass syringe (being called for short IG) is the patent of Frenchman's application of announcement in 1898, has injection, drawing liquid, samples, moves functions such as liquid, coloclysis, radiography, nasal feeding, spraying, in field extensive uses such as medical treatment, prevention, checks.

Second filial generation plastics disposable syringe (being called for short 2G) is the exploitation of BO company, introduces to the market in 1961, and range of application involves countries in the world, increases with surprising rapidity, and the consumption market has been eliminated the 1G syringe basically.In the use in more than 40 years, exist three big problem, especially undeveloped countries the most serious.

1, repeated use can cause nearly kind of the disease through the blood propagation surplus in the of 20, causes hepatitis B, hepatitis C, AIDS etc. to spread rapidly, and a people one pin is accomplished on 640,000 vaccination stations in the whole nation; One pipe once; Comparatively safe injection only accounts for 30% (Ministry of Public Health Department of Medical Administration statistics), current following hospital at county level, and health station ubiquity disposable syringe uses repeatedly; Cause annual 800-1600 ten thousand people to infect hepatitis B virus; 2,300,000-4,700,000 people infect hepatitis C virus, and the social danger of HIV infection is serious, especially can not be ordinary.

2, shared passages through which vital energy circulates junkie, common 2G syringe causes the quick propagation of AIDS, involves countries in the world.

3, reclaim the current 2G syringe inferior of sale and be full of medical wholesale market,, reclaim used 2G syringe in a large number mainly by the lawless person; Clean the back and repack, pretend to be certified products to sell, the syringe of sterilized not only is detrimental to health; Communicate illness increases social economy's burden, and causes syringe manufacturer heavy losses; Facing stops production closes down, and makes administrative management organizations at different levels increase the supervisor, strengthens administrative spending; And weak effect, persistence is poor, is the social malignant tumor that remains incessant after repeated prohibition.

Therefore researching and developing third generation self-destructive syringe (being called for short 3G) is imperative task; The relevant Patent project of 3G syringe through exploitation at home and abroad in more than 20 years reaches 800 kinds more than; The disposable 3G syringe that at present only minority is qualified is foreign products mainly by the product of Spain BO company and Ying Huan STAR company etc.

At present, the principle that mainly designs of 3G syringe has (1) locking-type (2) puncture type (3) blocking type (4) disengaged (5) needle retraction type (6) Expansion of Piston deformation type (7) combined type etc.All have structure complicated, the accessory that the 3G syringe has reaches more than the 4-6 spare, and assembly difficulty is high, and cost surpasses 3-5 times of 2G syringe, like Italian APS200 type, and meaning moral cooperation Pre-filled TRBA250 etc.Promote the use of difficulty, developing country especially, the economic pressures that can't stand are held by society.

Summary of the invention:

To above defective; The utility model purpose provides a kind of breaking forced self-destruction syringe; The technical scheme of taking is: syringe comprises injection tube (friable material), injector piston, Two Piece Set composition, and is simple and reasonable, it is characterized by the injection tube cervical region one hollow agnail is set; The injector piston is closed air bag, and the cost of material is low.When injector advanced liquid, the hollow agnail pierced through piston airbag front portion (accompanying drawing 1).When pushing away most liquid, the hollow agnail is decried (accompanying drawing 2) by the piston airbag bottom.The breaking forced self-destruction syringe of this utility model accomplishes to operate injection safety, easy, disposable forced self-destruction reliable in function in through drawing liquid, injection process.

Description of drawings:

Fig. 1 is that this utility model puncture balloon sketch map Fig. 2 is that this utility model agnail is decried sketch map

The specific embodiment

Breaking pressure syringe comprises in the injection tube, and neck portion design one hollow agnail (friable material), injector are formed and had enclosed elastic formula air bag by injecting bar and piston.

Agnail is worn out the anterior self-destruction (accompanying drawing 1) in advance of piston when injector advances liquid, and agnail is decried (accompanying drawing 2) by piston base when injector pushes away most liquid.The piston of syringe is the worse for wear, the injection tube agnail is broken by supporting, two external members of syringe are all broken, loses drawing liquid, function of injection, reaches mandatory self-destruction.

This utility model syringe is accomplished simple and reasonable, and production cost is low, and the selection of material is extensive, and is cheap; Manufacturing requirements is low, and automatization's processability is strong, and it is convenient to assemble; User handling safety, simple, medicinal liquid utilization rate height, mandatory self-destruction is reliable, and the market competitiveness is strong.

Claims

1. breaking forced self-destruction syringe; Comprise injection tube, injector piston, it is characterized in that: said injection tube cervical region is provided with a hollow agnail, and said injector piston is closed air bag; When injector advances liquid; The hollow agnail pierces through the piston airbag front portion, and when pushing away most liquid, the hollow agnail is decried by the piston airbag bottom.