CN201286910Y - Disposable double filter-needles syringe/dispensation device - Google Patents

Abstract

The utility model discloses a disposable double-filtering-needle injecting/dispensing device, which comprises a needle tube, and the injecting/dispensing device is characterized in that the injecting/dispensing device further comprises two micropore filtering needle heads with extended pintles, and the pintle parts are provided with insert-type micropore filtering films. Two needle heads of the injecting/dispensing device can finish two operation steps of absorbing medicine and injecting medicine respectively, so as to achieve the double-filtering purpose. The needle head with a lateral needle hole is needed in the dispensing process; and the needle head with an inclined plane needle hole is needed in the injecting process. The double-filtering process can filter 2 to 50 micrometers particles in the medicine liquor, and the injecting/dispensing device ensures the quality of the medicine liquor, eliminates the pollution of particles, and ensures the curative effect.

Description

Disposable two needle injection/dispenser of filtering

Technical field

This utility model relates to medical industry clinical practice utensil, belongs to a kind of instrument used for injection that is used for the various injections and the process of making up a prescription.

Background technology

As everyone knows, the excessive use of injection, the harm that brings to human body is many-sided.Injecting drug use can produce a large amount of particulate matters simultaneously, foreign body in the injection and particle contamination very harmful.Though the disastrous effect that this microgranule brings can quick appearance as other untoward reaction, bigger microgranule can cause body local circulatory disturbance, causes blood vessel embolism; Microgranule is crossed and can be caused local the obstruction and blood supply insufficiency at most, causes histanoxia, produces edema and phlebitis; Foreign body also can be invaded tissue from blood vessel, causes granuloma by huge cytophilic encirclement and propagation.

The particulate matter that produces during injecting drug use is meant diameter between 2 ~ 50 microns, sees the insoluble polymer substance of microscopically.This microgranule originally should not enter human body, but was injected in the body artificially when injection and transfusion.At present identified common microgranule and mainly contained eight big classes: 1, inorganic particles such as calcium, silicon, aluminum, ferrum and lead; 2, carbon black, 3 celluloses, 4 crystalline solid, 5 plastic particles, 6 rubber grains, 7 chipss of glass; 8 colloidal particles.Its source is respectively: inorganic particles such as 1 calcium, silicon, aluminum, ferrum and lead are mainly derived from raw material and preparation water; 2 carbon black granules are mainly derived from the water making device of production process; 3 celluloses are mainly derived from the water making device and the common filter medium of production process; 4 plastic grains are mainly derived from transfusion and transfuse blood utensil, medical liquid container, syringe; 5 rubber grains are mainly derived from production process, the process of making up a prescription and vein puncture process; 6 rubber particles are mainly derived from Chinese medicine preparation; 7 crystalline solid are then by the interaction between 2 kinds or the multiple drug molecule and the new microgranule of reactant that produces.In a single day insoluble granule enters human body, has just stayed forever in the body, and which kind of consequence when people can cause if can't predicting them, and therefore, the rescue human blood has been extremely urgent.It is unpractical not using injection, and the measure that we can take is to stop particulate matter to enter human body to greatest extent.Studies show that, majority of particles results from the link of inhaling medicine, compounding pharmaceutical, but at present the prevention measure to microgranule just adds filter in the transfusion device terminal, and ignored make up a prescription and various injection process such as muscle, vein, subcutaneous, Intradermal, eye and anesthesia in micro particle filtering.

Summary of the invention

Proposition of the present utility model, the disposable pair of filtering needle syringe and/or the dispenser that are intended to develop a kind of independent packaging enter in the liquid of human body and transfusion usefulness in the hope of stoping particulate matter to greatest extent.

Technical solution of the present utility model is achieved in that

A kind of disposable two needle injection/dispenser of filtering comprise a syringe, and it is characterized in that: comprise the microporous filter syringe needle of two lengthening pintles, its pintle is partly with built-in micropore filtering film.

Described built-in micropore filtering film is to be nucleopore membranes, its porous nickel, diameter≤1 micron.Compared with prior art, the utility model has the advantages that conspicuously, mainly show:

1, can be applicable to various injections, for example in the processes such as muscle, vein, subcutaneous, Intradermal, eye and anesthesia, effective filtering particulate matter overcomes the operating defect of present single needle injection device.

When 2, being applied to prepare flow of infusate, only need the injection syringe needle is inserted the liquid bottles plug once, stopped interting repeatedly of single needle head, reduced the pollution of rubber particle.Simultaneously other microgranules were intercepted in the starting stage of making up a prescription, help guaranteeing the effective mass and the curative effect of medicine.

3, compare with existing defecator, cost is low, has reduced drug waste, is easy to promote the use of.

Description of drawings

This utility model drawings attached 3 width of cloth, wherein:

Fig. 1 is disposable two suit sketch maps that filter needle injection/dispenser of the present utility model;

Fig. 2 is the sketch map of lengthening pintle microporous filter syringe needle of the present utility model;

Fig. 3 is the A-A profile of Fig. 2;

Among the figure: 1 aseptic package bag, 2 syringes, 3 two lengthening pintle microporous filter syringe needles, 4 micropore filtering films, 5 needle bodies, the tip of injection is the inclined-plane pin, what make up a prescription is the side opening pin, 6 pintles, 7 micropore filtering film film grooves, 8 pintle walls, 9 micropore filtering films.

The specific embodiment

A kind of disposable two needle injection/dispenser of filtering as Fig. 1 ~ as shown in Figure 3 comprise a syringe 2, it is characterized in that: also comprise two microporous filter syringe needles 3 that are used to inhale the lengthening pintle of medicine and injection, its pintle 6 is partly with built-in micropore filtering film 4.Clinically can not filter particulate matter by a syringe and a common syringe needle adapted in view of at present used with syringe, so in fact disposable pair of filtering needle of the present utility model be made up of two identical single-filtering syringe needles of structure, and with a syringe adapted, in the injection and/or the process of making up a prescription, finish and inhale medicine and two operating procedures of injection, thereby realize two filtering purposes.In the process of making up a prescription, used syringe needle has the side pin hole, and the syringe needle that uses in injection process then has the inclined-plane pin hole.The nucleopore membranes that described filter membrane adopts market to buy, this nucleopore membranes, very thin thickness, hole is uniform circular hole, its diameter is less than or equal to 1 micron, can filtering 2 ~ 50 microns various microgranules, and can also satisfy the normal flow of injection, the operating process of injection is had no adverse effect.

Claims (2)

1, a kind of disposable two needle injection/dispenser of filtering comprise a syringe, and it is characterized in that: comprise the microporous filter syringe needle of two lengthening pintles, its pintle is partly with built-in micropore filtering film.

2, a kind of disposable two needle injections and/or dispenser of filtering according to claim 1, it is characterized in that: described built-in micropore filtering film is to be nucleopore membranes, its porous nickel, diameter≤1 micron.

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