CN2910235Y

CN2910235Y - Safety syringe

Info

Publication number: CN2910235Y
Application number: CN 200620096642
Authority: CN
Inventors: 李小明; 李�根
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-05-12
Filing date: 2006-05-12
Publication date: 2007-06-13
Anticipated expiration: 2016-05-12

Abstract

A safety syringe comprises a bolus mechanism, a medicine storage mechanism and a pinhead, wherein, the bolus mechanism includes a push rod, a push rod sleeve and a bottle cover with the push rod provided inside with an airway; the medicine storage mechanism contains a medicine bottle, a piston, an extrusion head, a sealing ring and a sealing plug with the sealing ring nested outside the piston; the push rod and the piston is arranged into the upper chamber of the medicine bottle and the push rod is nested outside the bottle cover and fastens it; the medicine bottle bottom is provided with a medicine hole and the sealing plug is disposed therein; the bottle cover is provided with a bayonet, while the medicine bottle with a buckle; the pinhead includes a needle body with both ends having needle points and a connecting neilsbed actively connected with the medicine bottle bottom. The utility model can prevent pricking wound, secondary pollution and repeated use, and eliminates potential safety risk of existing disposable syringe during use.

Description

Safe syringe

(1) technical field: this utility model relates to the safe syringe that a kind of intramuscular injection is used.

(2) background technology: the present muscle disposable syringe that uses generally is to separate production, transportation, storage with medicine bottle, during use, extracts injecting liquid drug to the muscle position with syringe, promptly abandons it.There is following drawback in this syringe: the syringe needle that 1. arbitrarily abandons is exposed outside, easily causes cross infection after thorn is hurted sb.'s feelings; When 2. drawing medicinal liquid from medicine bottle, must earlier ampoule bottle be broken into pieces, the small glass powder of breaking into pieces can be sneaked into medicament, and can be exposed to fully when syringe extraction medicament and very easily cause the pollution of microgranule microorganism to medicinal liquid in the air; 3. after using, syringe construction does not have destroyed, and some illegal retailers very easily reclaim it and reuse, and have great potential safety hazard.

(3) summary of the invention: the purpose of this utility model proposes a kind of anti-pricking wound, anti-secondary pollution, anti-reusable safe syringe exactly.

Safe syringe of the present utility model comprises injecting mechanism, storage medicine mechanism and syringe needle, and described injecting mechanism comprises push rod, pushing rod sleeve and bottle cover; Air flue is arranged in the push rod; Described storage medicine mechanism comprises medicine bottle, piston, extrusion head, sealing ring and sealing-plug; Sealing ring is enclosed within outside the piston; Above-mentioned push rod and piston are inserted medicine bottle top bottle intracavity, and pushing rod sleeve places outside the bottle cover and fastens the bottle cover; The medicine bottle bottom has medicine outlet hole, and described sealing-plug places in this medicine outlet hole; Above-mentioned bottle puts and is provided with bayonet socket, and medicine bottle is provided with buckle; Described syringe needle comprises that two ends have the needle body of needle point and connect needle stand, and this needle stand and above-mentioned medicine bottle bottom flexibly connect.

Described bottle puts and has a perps, and a side of seam is respectively equipped with recess B. under the upper notch A.

Described medicine bottle bottom is provided with the internal thread hole that can screw in aforementioned connection needle stand.

When this utility model is made, use special equipment by the pharmaceutical production requirement medicine liquid irrigation to be gone in the medicine bottle earlier, two ends are respectively with piston packing and sealing-plug sealing.

During use, load onto push rod and pushing rod sleeve more respectively, with pack into bottle cover and snap in down recess B internal fixation of medicine bottle.The connection syringe needle of special double headed roller needle point is screwed in the medicine bottle bottom, tighten, at this moment, the needle point c puncture through seal plug on syringe needle top contacts with medicinal liquid, does not need to extract medicinal liquid in this process, has avoided secondary pollution, promote push rod gently downwards, medicinal liquid can flow out from needle tubing, after injection finishes, firmly depresses push rod, this moment, piston extrusion head place was destroyed, air is by sliding ring, piston, and the push rod air flue is revealed, and no longer produces negative pressure.Extrusion head on the piston can be with the needle point c bending on syringe needle top at this moment, and syringe is destroyed can't be reused; It is fixing and stuck that medicine bottle is returned to recess A place, and the syringe needle part also retreats in the bottle cover hidden, hurts sb.'s feelings even abandon also can not sting.

Therefore this utility model can reach anti-pricking wound, anti-secondary pollution, the anti-purpose of reusing, alleviating medical worker's labor intensity fully owing to have said structure; Eliminated potential potential safety hazard in the existing disposable syringe use.

(4) description of drawings:

Fig. 1 is a STRUCTURE DECOMPOSITION sketch map of the present utility model;

Fig. 2 is the sectional structure sketch map of push rod among Fig. 1;

Fig. 3 is a piston and sectional structure sketch map after sealing ring is connected among Fig. 1;

Fig. 4 is a medicine bottle sectional structure sketch map among Fig. 1;

Fig. 5 is a needle head structure sketch map among Fig. 1.

1-bottle cover, 2-medicine bottle, 3-sealing-plug, the 4-piston, 5-sealing ring, 6-push rod, the 7-pushing rod sleeve, 8-connects needle stand, 9-bottle cover perps, 10-medicine bottle buckle, the 11-bottle overlaps symmetrical buckle, 12-pushing rod sleeve symmetry recess, 13-pushing rod sleeve symmetry perps, 14-push rod air flue, 15-piston extrusion head, the 16-medicine outlet hole, 17-connects needle stand internal thread hole, 18-needle body.

(5) specific embodiment:

Shown in the accompanying drawing 1-5 is an embodiment of the present utility model, is provided with air flue 14 in the push rod 6, and the piston 4 outer sealing rings 5 that are with, push rod promote piston and can slide up and down at the bottle intracavity of medicine bottle 2; Pushing rod sleeve 7 places outside the bottle cover 1 and fastens the bottle cover.In the present embodiment, a pushing rod sleeve and bottle mode of the fixed form of overlapping employing clamping, promptly on pushing rod sleeve lateral symmetry position, perps 13 is set respectively, one side of each perps is established a recess 12, correspondence position is provided with two buckles 11 respectively at bottle cover top, and pushing rod sleeve can overlap snapping with bottle easily like this.Medicine bottle 2 and bottle cover 1 also adopt the mode of snapping, be provided with buckle 10 in the medicine bottle bottom, bottle puts a perps 9 is set, side at this perps is provided with upper notch A, following recess B respectively, during injection, buckle 10 is fixed on down recess B place, and injection finishes medicine bottle and syringe needle are retracted in the bottle cover together, and be fixed on upper notch A place with buckle 10 and get final product this moment.

Syringe needle in this utility model and common syringe needle are slightly had any different, it comprises that two ends have the needle body 18 of needle point and connect needle stand 8, the connection needle stand can screw in the internal thread hole 17 of medicine bottle bottom, at this moment, sealing-plugs 3 in the needle point C penetration of vials on the syringe needle top bottom medicine outlet hole 16 and contacting with medicinal liquid, promote push rod gently downwards, medicinal liquid can flow out from needle tubing, after injection finishes, firmly depress push rod, this moment, piston 4 and extrusion head 15 were damaged, and air is revealed by push rod air flue 14, no longer produces negative pressure, extrusion head can be with needle point C bending simultaneously, causing syringe to destroy can't reuse, and it is interior hidden to the bottle cover to return syringe needle, can reach the purpose of this utility model.

Also can adopt other version to be connected and fixed between pushing rod sleeve and bottle cover, bottle cover and the medicine bottle in this utility model, as be threaded etc.

Claims

1. safe syringe comprises injecting mechanism, storage medicine mechanism and syringe needle, it is characterized in that: described injecting mechanism comprises push rod [6], pushing rod sleeve [7] and bottle cover [1]; Air flue [14] is arranged in the push rod; Described storage medicine mechanism comprises medicine bottle [2], piston [4], extrusion head [15], sealing ring [5] and sealing-plug [3]; Sealing ring is enclosed within outside the piston; Above-mentioned push rod and piston are inserted medicine bottle top bottle intracavity, and pushing rod sleeve places outside the bottle cover and fastens the bottle cover; The medicine bottle bottom has medicine outlet hole [16], and described sealing-plug [3] places in this medicine outlet hole; Above-mentioned bottle puts and is provided with bayonet socket, and medicine bottle is provided with buckle; Described syringe needle comprises that two ends have the needle body of needle point [18] and connect needle stand [8], and this needle stand and above-mentioned medicine bottle bottom flexibly connect.

2. safe syringe according to claim 1 is characterized in that: described bottle puts and has a perps, and a side of seam is respectively equipped with recess B under the upper notch A..

3. safe syringe according to claim 1 and 2 is characterized in that: described medicine bottle bottom is provided with the internal thread hole that can screw in aforementioned connection needle stand [8].