CN201510519U

CN201510519U - Infusion container

Info

Publication number: CN201510519U
Application number: CN2009200044644U
Authority: CN
Inventors: 李伟宏
Original assignee: JIAHONG MECHANICAL MANUFACTURING Co Ltd DONGGUAN
Current assignee: JIAHONG MECHANICAL MANUFACTURING Co Ltd DONGGUAN
Priority date: 2009-09-08
Filing date: 2009-09-08
Publication date: 2010-06-23
Anticipated expiration: 2019-09-08

Abstract

The utility model provides a seamless transparent plastic infusion soft bag packing container which is made of polypropylene by a two-step blow molding technology. The soft bag packing container comprises a mouth part, a body part and a bottom part which are integrally formed. The proportion of the length to the width of the cross section of the container is between 2 and 4 times, so the infusion container is shrunk inwards to be deformed along the direction of a short axis easily. When the container is used, a pneumatic needle is not needed, and fluid in the container is discharged from the container stably at a generally constant speed in the process of infusion. The surface along the direction of the short axis is deformed inwards uniformly, and any irregular bending such as distortion can not appear.

Description

A kind of infusion vessel

Technical field

This utility model relates to a kind of infusion vessel, especially is raw material with the polypropylene, uses the blow molding technology of two-step method, a kind of seamless, the transparent plastic infusion packed in flexible pouchy container of making.

Background technology

Normally used transfusion package container mainly contains types such as the soft bag of vial, plastic bottle and non-PVC composite membrane on the domestic and international market at present.Wherein there are shortcomings such as frangible, Heavy Weight, transportation inconvenience and unfavorable recovery in vial, and the share of occupying in the city is fewer and feweri.The soft bag of non-PVC composite membrane does not need pneumatic needle in use, relies on the effect of external atmosphere pressure, can free inwardly contraction distortion, and the liquid in the container is clean from draining.Of the pollution of the interior air of environment be can prevent, the curative effect of medicine and patient's health guaranteed medicine.The soft bag of non-PVC composite membrane all is to use double-layered compound film and trunnion, by the transfusion flexible bag packing container of cutting edge simultaneously after specialized apparatus and the specific mold hot fusion molding, the hot melt composite cover forms after the liquid drug.But the production of present soft bag, the main shortcoming of composite membrane is a heat fused quality instability, and product is easy to generate the phenomenon of leakage, causes product rejection, and qualification rate reduces, and cost of manufacture is higher.The plastic bottle that uses two-step method to produce, transparency is good, the output height, wall thickness is even, and is in light weight, and cost is low, occupies more and more important position on the market at home.But the shortcoming of plastic bottle is very difficult that drain in the container is clean.

The utility model content

A purpose of the present utility model provides the infusion vessel of a kind of bag of shape, its output height, and the qualification rate height, weight is lighter, and cost is lower.

The infusion vessel that this utility model provides, comprise: an oral area that leads to described internal tank, body that is connected with described oral area with one be connected the bottom with described body, described oral area, body and bottom are one-body molded, described body is with the continuous discharge of liquid, from the inwardly contraction distortion earlier of the direction in described body centre position, and extend to described oral area and described bottom direction respectively gradually, the length of described body cross section and wide ratio are more than or equal to 2.

Further preferred, described body comprises the arc first protruding wall and the second protruding wall that is connected with described oral area, arc the 3rd protruding wall and the 4th protruding wall that are connected with described bottom, and sidewall, the wall thickness of the described first protruding wall, the second protruding wall, the 3rd protruding wall, the 4th protruding wall and sidewall is basic identical, and less than the wall thickness at other any positions of described body.Preferably, the wall thickness of the described first protruding wall, the second protruding wall, the 3rd protruding wall, the 4th protruding wall and described sidewall is 0.1～0.2mm, and the wall thickness at other positions of described body is 0.4～0.6mm.

In another preferred embodiment, described body comprises and the arc first protruding wall and the second protruding wall that are connected with described oral area, arc the 3rd protruding wall and the 4th protruding wall that are connected with described bottom, and sidewall, the described first protruding wall, the second protruding wall, the 3rd protruding wall, the 4th protruding wall are less than the wall thickness of described sidewall, and described sidewall is less than the wall thickness at other positions of described body.Preferably, the wall thickness of the described first protruding wall, the second protruding wall, the 3rd protruding wall, the 4th protruding wall is 0.1～0.2mm, and the wall thickness of described sidewall is greater than 0.2mm and less than 0.4mm, and the wall thickness at other positions of described body is 0.4～0.6mm.

Further, the length of described body cross section and wide ratio be more than or equal to 2, and be less than or equal to 4.The described first protruding wall and the second protruding wall symmetry, the described the 3rd protruding wall and the 4th protruding wall symmetry.

Preferable, described infusion vessel is made by polypropylene.

According to this utility model infusion vessel, successfully realized the soft bag of the seamless transparent polypropylene of blow molding (PP) plastic infusion, has the output height, the qualification rate height, weight is lighter, low cost and other advantages, and do not need exhaust needle when using, can reach the result of use of soft bag with the liquid in the container with constant speed discharge from container stably substantially.Owing to be the integrally blow container for moulding, there is not the defective of non-PVC-soft-bag leakage, obtain the certainly row effect the same with non-PVC-soft-bag.

Description of drawings

Fig. 1 a is the front view of this utility model infusion vessel;

Fig. 1 b is the body sectional view of this utility model infusion vessel;

Fig. 1 c is the design sketch after the liquid of this utility model infusion vessel is discharged;

Fig. 2 is the cut-away view of an embodiment of this utility model infusion vessel;

Fig. 3 is the cut-away view of second embodiment of this utility model infusion vessel;

Fig. 4 is a plastic infusion bottle transfusion speed change curve in the prior art;

Fig. 5 is a non-PVC-soft-bag transfusion speed change curve in the prior art;

Fig. 6 is the transfusion speed change curve of this utility model infusion vessel.

The specific embodiment

Described below with reference to different embodiment of the present utility model.Those skilled in the art just can not know and can realize technical characterictic of the present utility model and utility model purpose by multiple different alternate embodiments by creative work, therefore, described embodiment below only is descriptive but not limits restrictive.

Fig. 1 a is the front view of this utility model infusion vessel.The infusion vessel that this utility model provides, comprise: the oral area 100 that leads to described internal tank, the body 200 that is connected with described oral area be connected with described body the bottom 300, oral area 100, body 200 and bottom 300 are one-body molded, the wall thickness of body 200 is less than oral area 100 and bottom 300.Shown in Fig. 1 c, described body, from the earlier inside contraction distortion of the direction in body 200 centre positions and extends to oral area 100 and bottom 300 directions respectively gradually with the continuous discharge of liquid.With reference to Fig. 1 b, the length of body 200 cross sections and wide ratio are more than or equal to 2.As shown in the figure, infusion vessel of the present utility model is flat type, similar ellipse, and the length of body 200 cross sections and wide ratio can make container when contraction distortion more than or equal to 2, shrink inwards along short-axis direction.Further preferred, the length of body cross section and wide ratio be more than or equal to 2, and be less than or equal to 4.Preferable, infusion vessel is made by polypropylene.

In further preferred embodiment, body 200 comprises the arc first protruding wall 201 and the second protruding wall 202 that is connected with oral area 100, arc the 3rd protruding wall 203 and the 4th protruding wall 204 that are connected with bottom 300, and

sidewall

205a, 205b, the wall thickness of first protruding wall 201, second protruding wall the 202, the 3rd protruding wall the 203, the 4th protruding wall 204 and

sidewall

205a, 205b is basic identical, and, comprise littler than the wall thickness at the position in body 200 fronts less than the wall thickness at body 200 other any positions.Preferably, the wall thickness of first protruding wall 201, second protruding wall the 202, the 3rd protruding wall the 203, the 4th protruding wall 204 and

sidewall

205a, 205b is 0.1～0.2mm, and the wall thickness at body 200 other positions is 0.4～0.6mm.Preferably, the first protruding wall 201 and second protruding wall 202 symmetries, the 3rd protruding wall 203 and the 4th protruding wall 204 symmetries.

As shown in Figure 2, in another preferred embodiment, body 200 comprises the arc first protruding wall 201 and the second protruding wall 202 that is connected with oral area 100, arc the 3rd protruding wall 203 and the 4th protruding wall 204 that are connected with bottom 300, and

sidewall

205a, 205b, first protruding wall 201, second protruding wall the 202, the 3rd protruding wall the 203, the 4th protruding wall 204 is less than the wall thickness of

sidewall

205a, 205b, and

sidewall

205a, 205b are less than the wall thickness at body 200 other positions.Preferably, the wall thickness of first protruding wall 201, second protruding wall the 202, the 3rd protruding wall the 203, the 4th protruding wall 204 is 0.1～0.2mm, and the wall thickness of

sidewall

205a, 205b is greater than 0.2mm and less than 0.4mm, and the wall thickness at body 200 other positions is 0.4～0.6mm.Preferably, the first protruding wall 201 and second protruding wall 202 symmetries, the 3rd protruding wall 203 and the 4th protruding wall 204 symmetries.

As mentioned above, according to infusion vessel of the present utility model the wall thickness of body 200 is carried out the formulation of science, infusion vessel is a bag shape, and contraction distortion in an orderly manner, improves the discharge opeing function of infusion vessel.

When using infusion vessel of the present utility model, oral area 100 is suspended on certain height with infusion vessel down, the hollow needle of will infuse, and the plug by composite cover is inserted in the liquid, adjusts tapping valve and arrives suitable position, causes the discharge opeing flow speed stability.Under the atmospheric effect in the external world, infusion vessel short-axis direction two

side

206a, 206b begins to shrink to internal strain, middle part from body 200 when just beginning caves inward, discharge along with liquid, sunken inside is expanded to the two ends of oral area 100 and bottom 300 from the centre of body 200, the two side of short-axis direction also begins to move closer to, when the liquid of discharging surpasses 2/3rds, the both sides of short-axis direction begin to fit together from the centre of body, continuous discharge along with liquid, the zone of fitting also from middle position to around expansion, after the liquid of container is all discharged, after the contraction distortion as the effect of Fig. 1 c.

Fig. 3 is a plastic infusion bottle transfusion speed change curve in the prior art, and Fig. 4 is a non-PVC-soft-bag transfusion speed change curve in the prior art.Fig. 3 and Fig. 4 all do the transfusion test with plastic infusion bottle and the 500ml non-PVC-soft-bag of 500ml, and infusion vessel is hung over identical height, use same tube for transfusion, measure the speed that liquid is discharged at the same time.As shown in Figure 3, can find from measured data and transfusion speed change curve, speed was very fast when plastic infusion bottle had just begun to infuse, after liquid was discharged about about 100ml, the velocity of discharge was relatively stable, but wave phenomenon appears in the centre, when liquid in container remains about 100ml left and right sides, the velocity of discharge obviously slows down, and has only about 60% of beginning, and the liquid required time that drains in the container is longer.As shown in Figure 4, non-PVC-soft-bag is discharged in the 100ml process at liquid, and speed is very fast relatively and stable, and discharge subsequently descends rapidly, and middle drain age velocity is stable, has only and is left in the container about about 20ml, and the velocity of discharge just obviously reduces.

Fig. 5 is the transfusion speed change curve of this utility model infusion vessel.Same testing with 500ml according to infusion vessel of the present utility model, infusion vessel begins to discharge about about 250ml to liquid from discharge opeing, this moment, the contraction distortion of container reached maximum, drain age velocity is also along with increase, thereafter steady gradually, just to the end during the surplus about 20ml of liquid in container, the velocity of discharge just obviously slows down, used time of discharge opeing is minimum, drain age velocity constant substantially (as shown in Figure 5).

According to infusion vessel of the present utility model, has the output height, the qualification rate height, weight is lighter, low cost and other advantages, and do not need exhaust needle when using, just the liquid in the container can be discharged stably from container with substantially constant speed, reach the result of use of soft bag.

In above-mentioned description, new characteristic of the present utility model and advantage are fully disclosed. Yet this is open only to be illustrative in many aspects, rather than restrictive. On the basis disclosed herein, those skilled in the art fully can be in the situation that does not exceed the utility model scope, in detail or the layout aspect change, comprise the combination of various feature and advantage of the present utility model or separately use.

Claims

1. infusion vessel comprises:

An oral area that leads to described internal tank;

A body that is connected with described oral area;

One bottom being connected with described body;

Described oral area, body and bottom are one-body molded, the wall thickness of described body is less than described oral area and described bottom, described body is with the continuous discharge of liquid, direction inwardly contraction distortion earlier from described body centre position, and extend to described oral area and described bottom direction respectively gradually, the length of described body cross section and wide ratio are more than or equal to 2.

2. infusion vessel as claimed in claim 1, it is characterized in that, described body comprises the arc first protruding wall and the second protruding wall that is connected with described oral area, arc the 3rd protruding wall and the 4th protruding wall that are connected with described bottom, and sidewall, the wall thickness of the described first protruding wall, the second protruding wall, the 3rd protruding wall, the 4th protruding wall and sidewall is basic identical, and less than the wall thickness at other any positions of described body.

3. infusion vessel as claimed in claim 1, it is characterized in that, described body comprises and the arc first protruding wall and the second protruding wall that are connected with described oral area, arc the 3rd protruding wall and the 4th protruding wall that are connected with described bottom, and sidewall, the described first protruding wall, the second protruding wall, the 3rd protruding wall, the 4th protruding wall are less than the wall thickness of described sidewall, and described sidewall is less than the wall thickness at other positions of described body.

4. infusion vessel as claimed in claim 2 is characterized in that, the wall thickness of the described first protruding wall, the second protruding wall, the 3rd protruding wall, the 4th protruding wall and described sidewall is 0.1～0.2mm, and the wall thickness at other positions of described body is 0.4～0.6mm.

5. infusion vessel as claimed in claim 3, it is characterized in that, the wall thickness of the described first protruding wall, the second protruding wall, the 3rd protruding wall, the 4th protruding wall is 0.1～0.2mm, and the wall thickness of described sidewall is greater than 0.2mm and less than 0.4mm, and the wall thickness at other positions of described body is 0.4～0.6mm.

6. as claim 1,2,3,4 or 5 described infusion vessels, it is characterized in that the length of described body cross section and wide ratio be more than or equal to 2, and be less than or equal to 4.

7. as claim 2,3,4 or 5 described infusion vessels, it is characterized in that the described first protruding wall and the second protruding wall symmetry, the described the 3rd protruding wall and the 4th protruding wall symmetry.

8. as claim 2,3,4 or 5 described infusion vessels, it is characterized in that described infusion vessel is made by polypropylene.