CN201197835Y - Needle head for mixing injections - Google Patents

Abstract

The utility model discloses a needle head for a mixed injection, which is provided with the needle head (1) and a needle seat (2). The needle head is characterized in that a vent pipe (3) with a vent hole (5) is connected with the needle head (1) in parallel, and the elbow part of the vent pipe is provided with a filter plug (4). The utility model has the advantages that when mixed injections are injected, air in a bottle can freely come in and go out, therefore, whether the liquids are injected into the bottle to be mixed or the liquids are extracted from the bottle to be applied, the pressure of mixed medical solution is ensured to basically keep a dynamic balance with the atmospheric pressure of the external, thereby the labor intensity of medical solution mixed preparation of medical staff is greatly lightened, and the work efficiency of the medical solution mixed preparation is enhanced.

Description

A kind of syringe needle of Mixtard

Technical field

This utility model belongs to a kind of medical apparatus and instruments, and definite saying is a kind of syringe needle of Mixtard.

Background technology

For the various therapeutic schemes in the ward of hospital, need be when transfusion according to doctor's the different injection of prescription configuration.In the process of configuration, often a kind of liquid (as water for injection) need be injected in the bottle of the liquid of another sealing or powder body and make it mix homogeneously, so that infusion treatment generally is called mixed medicine.And when in the bottle of sealing, injecting liquid,, brought very big difficulty for manual injection because the pressure in the air-tight bottle increases, particularly when the blended dose of needs was very big, it is also big that nurse's mixed pharmaceutical worker makes labor intensity, also influences work efficiency.In order to address this problem, designer of the present utility model has done research in earnest, thinks that the big reason of pressure is that gas in the bottle can not be communicated with the atmosphere in the external world and causes, and therefore, has proposed goal of the invention of the present utility model.

Summary of the invention

The problem that goal of the invention of the present utility model can not be discharged for the gas that overcomes in the medicine bottle that mixes in pharmaceutical worker's work puts forward.A kind of syringe needle of Mixtard promptly is provided.

Technical solution of the present utility model is achieved in that the syringe needle of this Mixtard, has a syringe needle [1] and needle holder [2], and breather [3] with passage [5] in parallel with syringe needle [1] has filter plug [4] in the elbow of breather.

Beneficial technical effects of the present utility model is: be when hybrid injection liquid, air in the bottle can freely be come in and gone out, so no matter in bottle, inject liquid mixing and still in bottle, extract mixed liquid application out, guaranteed that interior with the extraneous atmospheric pressure of bottle of mixed medicinal liquid keeps a dynamic equilibrium substantially.Thereby alleviated the be mixed labor intensity of medicinal liquid of medical personnel greatly, improved the work efficiency of the medicinal liquid that is mixed.

Description of drawings

Accompanying drawing is a structural profile schematic views of the present utility model.Serial number name in the accompanying drawings is: 1, syringe needle, 2, needle holder, 3, breather, 4, the filter plug, 5, passage.

The specific embodiment

. below in conjunction with the embodiment that provides in the accompanying drawing, structure of the present utility model and use are described in detail.With reference to accompanying drawing, the profile of this device and common injection syringe needle is similar, has a syringe needle [1] and needle holder [2], and its distinguishing characteristics is, breather [3] with passage [5] in parallel with syringe needle [1] has filter plug [4] in the elbow of breather.Filter plug [4] adopts the material of energy air-isolation granule effect to get final product, and can use the membrane material of single saturating performance if any specific (special) requirements.During use,, with the powder bottle upsidedown syringe needle is thrust in the powder bottle according to routine, the sweep of breather is in the bottle cap outside.Liquid in the syringe is injected in the powder bottle, and at this moment, the interior liquid of powder bottle increases, and pressure also increases, and the interior gas of bottle is promptly filled in [4] along breather [3] through filter through passage [5] and discharged outside the bottle the interior pressure balance of maintenance bottle.When mixing needs later on outwards to extract the injecting fluid that mixes out, the interior medicinal liquid minimizing of bottle this moment is negative pressure state, and like this, the outer air of bottle promptly enters in the bottle by the filter of breather, pressure in the bottle is risen, thus the basic dynamic equilibrium that has kept pressure of the inside of a bottle.

Claims (1)

1. the syringe needle of a Mixtard has a syringe needle [1] and needle holder [2], it is characterized in that breather [3] with passage [5] in parallel with syringe needle [1], has filter plug [4] in the elbow of breather.

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