CN202777079U

CN202777079U - Dispensing injector

Info

Publication number: CN202777079U
Application number: CN 201220427154
Authority: CN
Inventors: 章丽芬
Original assignee: Individual
Current assignee: Individual
Priority date: 2012-08-27
Filing date: 2012-08-27
Publication date: 2013-03-13
Anticipated expiration: 2022-08-27

Abstract

The utility model discloses a dispensing injector, which comprises a transparent sealed tube body. The lower end of the sealed tube body is provided with a needle bed; a liquid inlet/outlet communicated with an inner cavity of the sealed tube body is arranged in the needle bed; the needle bed is provided with an injection needle; and the sealed tube body is connected with an air bag. According to the dispensing injector disclosed by the utility model, through reasonably arranging components: the sealed tube body, the needle bed, the injection needle, the air bag, a hose, an air inlet one-way valve, a deflation valve, a deflation knob and the like, when an operation is performed, a liquid medicine in a liquid medicine bottle is extruded into the sealed tube body from the injection needle through increasing air pressure in the liquid medicine bottle, and the operation does not need to be performed through a pintle during the whole process, so that the liquid medicine cannot be polluted by the outside. Moreover, all the components can be easily obtained and are simple in assembling and are lower in cost. The dispensing injector disclosed by the utility model is reasonable and simple in structure, safe and reliable in use, high in leakproofness, low in cost, good in using effect, so that the dispensing injector is worthy of being popularized.

Description

Dispensing injector with pin

Technical field

This utility model relates to a kind of medical devices, especially a kind of syringe be used to making up a prescription.

Background technology

At present, medical personnel typically use conventional syringe and move liquid dilution and make up a prescription when being the patient infusion preparating liquid.In getting the liquid operating process, need to pull open pintle to extract medicinal liquid, at this moment the pintle surface exposes, very easily by external environmental, when the medicinal liquid in the syringe was got, contaminated pintle was pushed in the syringe, can cause syringe pollution, liquid medicine contamination, have influence on quality of liquid medicine, injure patient's health.(patent No.: disclose the syringe that a kind of vehicle is used 200320120967.0), it mainly is to solve the problem that syringe pintle when getting liquid exposes vulnerable to pollution by sealing one rubber membrane cylinder between the flange of the handle of pintle and syringe to Chinese utility model patent.Although this mode can avoid pintle to expose, but when operation, pintle pull open push extremely inconvenient, the rubber membrane cylinder is also drawn bad easily, and the material quality differs greatly between syringe and the rubber membrane cylinder, be difficult for being tightly connected, strengthened the difficulty of producing, improve the cost of syringe, be unsuitable for widespread adoption.In addition, the liquid in-out mouth of the injection needle of existing syringe is located at the needle point place of shank end, when getting the liquid operation, needle point punctures bottle cap, have and be punctured on a small quantity the broken end of the bottle cap that peels off and enter in the shank from the liquid in-out mouth of needle point, pollute medicinal liquid, affect health.Therefore, a kind of safe and reliable and simple in structure, cost is low, result of use is good dispensing injector with pin be badly in need of to appear.

Summary of the invention

This utility model will solve the shortcoming of above-mentioned prior art, and a kind of safe and reliable and simple in structure, cost is low, result of use is good dispensing injector with pin is provided, and it is required to satisfy medical safety, alleviates simultaneously patient's financial burden.

This utility model solves the technical scheme that its technical problem adopts: this dispensing injector with pin, comprise transparent airtight body, and airtight body lower end is provided with needle stand, is provided with the liquid inlet/outlet that is communicated with the sealed tube intracoelomic cavity in the needle stand, and needle stand is provided with injection needle; Be connected with air bag on the airtight body.Like this, when getting liquid, injection needle is inserted medicinal liquid bottle, the manual squeezing air bag, air bag is to inflating pressure in the medicinal liquid bottle, and after air bag was crushed, the air pressure in the air bag was very little, far below the air pressure in the medicinal liquid bottle, at this moment, only need the liquid in-out mouth of injection needle is contacted with medicinal liquid in the medicinal liquid bottle, unclamping air bag, medicinal liquid is extruded in the airtight body from injection needle under the effect of bottle internal gas pressure, until medicinal liquid bottle in the gentle capsule of airtight body at a stalemate at ordinary times till; When dosing, only need extruding gasbag just the medical liquid squeezing in the airtight body to be made up a prescription, operate very easy.

Further, air bag is for having elastic elastic bag, and airtight body is provided with inflation inlet, outlet side on the air bag is connected by flexible pipe and inflation inlet are airtight, the inlet end of air bag is provided with breather check valve, establishes vent valve on the outlet side of air bag, and this vent valve is provided with degassing button.Like this, under the effect of breather check valve, can come to increase air pressure to ventilation in the medicinal liquid bottle by continuous extruding gasbag, when getting liquid, stop pressurization, degassing button by the Spin Control vent valve, make the air pressure in the airtight body be lower than the medicinal liquid bottle internal gas pressure, because after medicinal liquid bottle is constantly pushed the ventilation pressurization by air bag, air pressure and atmospheric pressure in the long-range airtight body of bottle internal gas pressure, medicinal liquid is extruded in the airtight body from injection needle under the effect of bottle internal gas pressure, until till when maintaining an equal level with the sealed tube bulk phase in the medicinal liquid bottle.Control and get liquid measure by the control vent valve in the whole operating process, not only easy and simple to handle, can also make and make up a prescription more precisely, guarantee to get the accuracy of liquid measure.

Further, injection needle comprises installation portion, is fixed with the shank that hollow arranges on the installation portion, and this shank end is provided with the needle point of sealing shank, has the liquid in-out mouth on the shank sidewall of needle point the inner.Like this, the shank end sealing arranges, and the liquid in-out mouth is located on the shank sidewall of needle point the inner, can avoid being punctured the broken end of the bottle cap that peels off and enter shank internal contamination medicinal liquid from the liquid in-out mouth.

Airtight body is medical transparent hard plastic tube.Like this, be convenient to people the injection needle quick insertion is extracted in medicinal liquid bottle or fast, and airtight body does not deform, guarantee to get the accuracy of liquid measure, and visualized operation control is convenient in the setting of transparent airtight body.

Airtight body is provided with scale.Like this, the use of Combined with Radiotherapy air valve is convenient to read and liquid measure is got in control.

The effect that this utility model is useful is: of the present utility model rational in infrastructure, simple, rational deployment setting by parts such as airtight body, needle stand, injection needle, air bag, flexible pipe, breather check valve, vent valve and degassing buttons, by increasing the medicinal liquid bottle internal gas pressure medicinal liquid in the medicinal liquid bottle is extruded in the airtight body from injection needle during operation, whole process need not by the pintle operation, makes medicinal liquid not be subjected to extraneous the pollution; And each parts all obtains easily, and assembling is simple, and cost is lower.This utility model is safe and reliable, good leak tightness, and cost is low, and result of use is good, is worthy to be popularized.

Description of drawings

Fig. 1 is perspective view of the present utility model;

Fig. 2 is airtight body that injection needle is housed in this utility model structural representation when analysing and observe;

Fig. 3 is the structural representation of known syringe.

Description of reference numerals: airtight body 1, needle stand 2, liquid inlet/outlet 3, injection needle 4, installation portion 4-1, shank 4-2, needle point 4-3, liquid in-out mouth 4-4, air bag 5, inflation inlet 6, flexible pipe 7, breather check valve 8, vent valve 9 degassing buttons 10, scale 11.

The specific embodiment

The utility model is described in further detail below in conjunction with accompanying drawing:

With reference to accompanying drawing: this dispensing injector with pin in the present embodiment, comprise transparent airtight body 1, airtight body 1 lower end is provided with needle stand 2, is provided with the liquid inlet/outlet 3 that is communicated with airtight body 1 inner chamber in the needle stand 2, and needle stand 2 is provided with injection needle 4; Be connected with air bag 5 on the airtight body 1.Air bag is 5 to have elastic elastic bag, airtight body 1 is provided with inflation inlet 6, and the outlet side on the air bag 5 is by

flexible pipe

7 and 6 airtight connections of inflation inlet, and the inlet end of air bag 5 is provided with breather check valve 8, establish vent valve 9 on the outlet side of air bag 5, this vent valve 9 is provided with degassing button 10.Injection needle 4 comprises installation portion 4-1, is fixed with the shank 4-2 that hollow arranges on the installation portion 4-1, and this shank 4-2 end is provided with the needle point 4-3 of sealing shank, has liquid in-out mouth 4-4 on the shank 4-2 sidewall of needle point 4-3 the inner.Airtight body 1 is medical transparent hard plastic tube.Airtight body 1 is provided with scale 11.

The air bag that air bag 5 in this utility model adopts in the sphygomanometer.

When this utility model uses, get liquid: injection needle 4 is inserted medicinal liquid bottle, manual squeezing air bag 5, air bag 5 is given inflating pressure in the medicinal liquid bottle, after air bag 5 is crushed, air pressure in the air bag 5 is very little, far below the air pressure in the medicinal liquid bottle, at this moment, only need the liquid in-out mouth 4-4 of injection needle 4 is contacted with medicinal liquid in the medicinal liquid bottle, unclamping air bag 5, medicinal liquid is extruded in the airtight body 1 from injection needle 4 under the effect of bottle internal gas pressure, until in the medicinal liquid bottle with airtight body 1 and air bag 5 at a stalemate at ordinary times till.Dosing: only need extruding gasbag 5 just the medical liquid squeezing in the airtight body 1 to be made up a prescription.Increase breather check valve 8, vent valve 9 and degassing button 10, make can control by the control vent valve in the whole operating process and get liquid measure, easy and simple to handle, it is accurate to get liquid.

Although this utility model illustrates and describes by the reference preferred embodiment,, those skilled in the art should understand, and in the scope of claims, can do the various variation on form and the details.

Claims

1. dispensing injector with pin, comprise transparent airtight body (1), it is characterized in that: described airtight body (1) lower end is provided with needle stand (2), is provided with the liquid inlet/outlet (3) that is communicated with airtight body (1) inner chamber in the described needle stand (2), and described needle stand (2) is provided with injection needle (4); Be connected with air bag (5) on the described airtight body (1).

2. dispensing injector with pin according to claim 1, it is characterized in that: described air bag has elastic elastic bag for (5), described airtight body (1) is provided with inflation inlet (6), outlet side on the described air bag (5) is by flexible pipe (7) and airtight connection of inflation inlet (6), the inlet end of described air bag (5) is provided with breather check valve (8), establish vent valve (9) on the outlet side of described air bag (5), this vent valve (9) is provided with degassing button (10).

3. dispensing injector with pin according to claim 1, it is characterized in that: described injection needle (4) comprises installation portion (4-1), be fixed with the shank (4-2) that hollow arranges on the described installation portion (4-1), this shank (4-2) end is provided with the needle point (4-3) of sealing shank, has liquid in-out mouth (4-4) on shank (4-2) sidewall of described needle point (4-3) the inner.

4. according to claim 1,2 or 3 described dispensing injector with pins, it is characterized in that: described airtight body (1) is medical transparent hard plastic tube.

5. according to claim 1,2 or 3 described dispensing injector with pins, it is characterized in that: described airtight body (1) is provided with scale (11).