How to properly open an ampoule with stripes. Useful advice: how to open the ampoules? How to open an ampoule with liquid medicine

First of all, you must properly open the ampoule. There are two types of ampoules by opening method:

traditional who require inscribed on the neck;
with a point in a glass of glass bowl.

First you need to determine the type of ampoule. This is usually not written on the package. But a faded glance on the glass flask is enough to understand whether it belongs to traditional or not.

The point may be black, red or other color. If it is not on the neck, then you need a special file that is hidden under the top cover of the package. Such a sawing has a circle shape with a cut segment, the edges of which are covered with an abrasive material.

The AMPUILE OPENING sequence includes the following steps:

1) the abrasive edges are inscribed on one side of the neck;

2) without excess effort 3-4 times is carried out by a sawn over the selected side of the ampoule;

3) Then you need to moisten a cotton disk or ball in the antiseptics;

4) one hand is held by the base of the kolkochka with the medicine, and the large and index fingers of the second hand worst the protrusion of the ampoule;

5) In order not to damage the fingers, cotton wool is used;

6) Dome is made by a sharp movement of the hand aside, the reverse of the one where it has inscribed.

Such is the correct sequence of opening a medical ampoule. However, the sawo can be lost. Then the replacement will serve as a cosmetic set or a piece of sandpaper. The place has inspired necessarily wipe with alcohol or another antiseptic to exclude microorganisms in the drug.

Some manufacturers make more progressive solutions - with a marker. In this case, the opening process is simplified and includes the following actions:

the wizard marker is heading for itself;
the ampoule opens with a slight movement of his hand from herself.

In this case, you do not need to use cotton, since the risk of injury is minimal.

Then the drug is recruited into the syringe, the air is produced and an injection is made to the muscle. The injection site is disinfecting before. The solution is introduced smoothly, after which the needle is removed, and a cotton ball is applied to its place.

Sterile drugs for injection are usually produced in ampoules - hermetically sealed glass vessels. In order to gain a medicine in the syringe, you need to open an ampoule, having endured its upper tip. Usually for these purposes in a set with ampurs there is a special file, but what to do if it is not?

How to open an ampoule without a file? If you got a set of ampoules without a sawnie, first of all, you need to figure out what kind of ampoule type you caught. There are ampoules, to open which the sawnka is not required at all. On the neck, such an ampoule must be present in the form of a point or a rim, denoting the donom line. The glass, from which the ampoule is made, in this place is thinner, so the tip must break away without difficulty.

To open such an ampoule, the first thing it is necessary to disinfect it in the place of donom. First, wipe it with a cotton swath in medical alcohol, and then a dry sterile wool so that the ampoule is not a slippery. After that, grab the top of the ampoule of sterile wool and with a slight pressure trample in the direction from ourselves.

Ampoules with a label should be opened with a light movement, so no additional tools (for example, pliers) use no need. When opening an ampoule "power" methods, the risk of crushing the glass is great, as a result, the sterility of the drug will be broken, and you can be injured by fragments.

If there is no label on the ampoule, for its opening you need a special file (an ampily knife or an ampumen scarifier). With this file, an ampoule is made inscribed, according to which its top is chosen.

In the event that the sawo is missing (say, you bought one or two ampoules with a medicine in a pharmacy instead of a whole package, and the file was not given to you), you can try to cut the ampoule with the help of improvised tools.

It is best for these purposes a metal sawmill for nails. Disinfect the sawnur with alcohol, press it to the neck of the ampoule at an angle of 45 degrees and carefully inscribe an ampoule in a circle. The place has inspired choose so that it is convenient to calm the tip, but it should not be too low.

After that, it is necessary to repeat the same actions as when the ampoule is opened with a label: to disinfect and gently break down the tip over the line inscribed in the direction from ourselves, clasping it with a rath or napkin.

Also to open the ampoule you can use a kitchen knife, although it is suitable for these purposes worse than a nail file. A sharp knife (naturally, pre-disinfectant), make several cuts in different directions in the estimated place of donomas, then proceed according to the standard scheme.

Acting "handicraft" methods, better instead of watts wrap the ampoule with a fabric cloth or a thin towel: it will help better protect yourself from fragments, if the ampoule is still bursting. As in the case of ampoules with a label, pliers, pliers and other business tools for opening an ampoule cannot be used.

Franking the tip of the ampoule, certainly make sure that the glass fragments did not get inside. Lose the syringe with the needle of the syringe into the opening ampule and dial the medicine by pulling the piston. Make sure that the needle slice is always completely immersed in the solution, otherwise, along with the medicine in the syringe, air bubbles will fall, which can provoke the appearance of infiltration (seals) at the injection site. Before making an injection, the needle needs to be replaced, as she could fool around the wall of the ampoule.

The most important thing when opening an ampoule with the drug (especially undergraded means) is not to rush and accumulating accuracy, then you will certainly succeed.

Attack of head (dental, gastric) pain. The medicine from it is long invented - ampoule with analgesic, syringe - and after 10 minutes the life will be filled again. But when trying to extract the drug, we can expect an unpleasant surprise prepared by native pharmaceutical enterprises, - the ampoule is not so easy to open. A few minutes of desperate struggle, curses addressed to the one who all invented, crackling glass, processing the cut extremities with an antiseptic - and the road to painless existence is free. Situation, familiar to almost everyone. These unpleasant moments can be avoided if you know how to open an ampoule.

The modern pharmaceutical industry offers several types of glass packaging for injection preparations that are opened in different ways.

History ampoulesAnd everything began in the 19th century. The opinions of historians regarding the inventor of the ampoules are divergent. Some believe that Russian Pharmacist A.V. Pel became the progenitor of Tara. The Western experts give the palm of the championship of the Frenchman Stanislav Limuzen. But the fact is that in the 1980s, a glass vessel with a narrow elongated neck and a wide base, intended for storing a sterile drug, was invented in the 1980s. The title of the capacity has happened from the Greek word "amphora" - the vessel. Until now, domestic pharmaceutical producers produce injection forms in ampoules, to pain resembling a 130-year old "old woman."

Glass ampoule without notchesTo successfully open the glass ampoule, you need, armed with knowledge, attach strength and dexterity of the hands. The conscientious manufacturer must complete the packaging with a drug as a scarifier or knife for ampoules. In this case, the buyer is lucky and the algorithm of action is standard:

shake the ampoule;
using a scarifier to cut the neck of the ampoules by choosing the optimal distance from the top;
wipe the place inscribed with alcohol;
wrap the neck with a cotton or napkin and in the "From Yourso" position to break out the inscribed tip of the ampoule.

If when you try to find a knife for ampoules, only disappointment expects, then the situation is complicated. For its permission, you can, firstly, ask the pharmacist to find a scarifier in another package.

Secondly, as an abrasive means to open the ampoule to use a nail file, pre-rubbed its alcohol.

Well, for those who are not looking for easy paths - the third, the most cruel option - wrap the tank with the cherished medicine with cotton and break it up with the top, relying on the will of the case. If, as a result of the efforts spent, glass fragments did not fall inside the tank and did not scatter around the room - the first barrier was overcome. It remains to open the ampoule, without shed medicine and the blood of the future patient. If it was possible, you can consider yourself a virtuoso.

Glass ampoule with notchAccording to European standards, the ampoules must have a color ring or a break point. Glass in a breakthrough place is much thinner, and open an ampoule with a point is no difficulty. Having treated the ampoule with an antiseptic and armed with a napkin, it is necessary to press on the notch and carefully choking the neck of the ampoules - that's the whole algorithm.

Dry powder bottleSome drugs are not stable in a dissolved form and are produced as a powder. If you have become the best possessor with a dry powder, the task of opening it and the extraction of the medication can turn into a puzzle.

First, a solvent is necessary. Most often it is water for injection, anesthetic solution or isotonic solution. Sometimes manufacturers produce it complete with the main drug. Otherwise, the solvent is bought separately.

Secondly, the syringe needs.

Well, the process itself:

in the syringe, you must dial the required volume of the solvent (read the instructions for the drug);
from the bottle, remove the lid (it happens metal, it is cut off with scissors or knife, and plastic);
under the top cover to detect the lower, rubber, which not to forget to wipe with alcohol;
pushing the needle the syringe rubber cover, enter the solvent inside the bottle;
carefully shake the bottle, make sure that the whole drug dissolved;
score with the same syringe solution;
change the needle on the syringe to a new, sterile.

And treat health!

Quite often, a person falls into a situation when he needs to make a dam. When contacting a specialized medical institution with this manipulation, it never arises difficulties. An experienced medical worker knows how to open an ampoule, mix a solution with medicinal powder and prepare a syringe. However, many people have accustomed to their own treatment and prefer to put injections at home, resorting to the help of relatives.

If you are in the number of patients who do not want to attend medical facilities for obtaining a regular dose of the drug, then you probably have a question for how to open an ampoule with a medicine yourself. Some cosmetic drugs are also available in glass bubbles, such as ampoules for hair, vitamin leather preparations. Many women can easily conduct a number of manipulations and quickly get to the contents of the glass container. There are several ways to open the ampoule. Observing the instructions, you can easily make this maneuver. Consider in detail several methods.

First method: use of the peel

Usually, glass marshes with medicinal or cosmetic preparations are sold in packaging with a special saw. Taking advantage of it, you will easily reach the contents of the ampoule.

Take the drug in one hand. Following the second hand tightly clamp the pink and make several reciprocating movements to the tool by the narrow point of the glass container.

After that, you need to take a paper napkin or unnecessary fabric and wrap it with the top of the glass. A sharp, but neat movement from myself. Glossom and open the packaging.

Second way: Using Program

Sometimes there are situations when the dilution for the discovery of drugs has lost or was originally absent. What to do in this situation? How to open an ampoule for an injection without a saw? In this case, you can use undergraduate tools, such as a knife, nail file.

Similar to the first way, take the ampoule and the selected tool, make a few lap on its neck in a narrow place. After that, open the drug, pre-wrapped the glass with a napkin.

It should be noted that the nail file is a more efficient tool for opening glass ampoules, rather than a knife. However, it is worth considering that the material should be glass or metal. Paper nail files will be powerless in this situation.

How to open ampoules with a point?

Recently, the manufacturers of drug injections are increasingly producing packaging that does not require pre-feeding. Information about this is usually not indicated on the package. How to find out that the ampoule can open without a peking?

This kind of glass container has a point in a wide place of the neck. It can be red, green or black. Also, this type of injection has a rim of the corresponding color in a narrow place of the neck. It is over it and it is necessary to prey on the packaging.

Take an ampoule with a point in your hand. Cover the top of the glass with the second hand (do not forget about the napkin). Take a sharp movement from yourself and discover the medicine.

How to open an ampoule with dry powder?

In most cases, injection drugs are produced in an already prepared liquid form, but some drugs require preliminary preparation. In this case, you will have two ampoules that need to open. One of them has liquid content. How to reveal such packaging, the methods described above are described.

The second glass container usually has dry bulk content. The instruction involves mixing these two bases. In order to get to the bulk powder, you need to do as follows.

Open the ampoule with the liquid and type the cure for the syringe. Open the second ampoule with any acute item: knife, scissors or nail files. Picture the tool to the corner of the metal cover and gently remove it. Insert the needle of the syringe into the ampoule, pushing the rubber lid. After that, it is necessary to mix the medicine thoroughly and dial it back into the syringe.

Conclusion

Use the appropriate option to open the ampoule. For the correct selection, try each of the methods described. Remember that care must be taken when working with glass.

If you often have to open ampoules, take a special silicone device. It will help you to open glass bowls without injuries and additional funds.

Before proceeding with the procedure, wipe the glass with a wool moistened in an alcohol solution. This is necessary in order to prevent microbes from entering the drug.

How to open the ampoule? What to open the ampoule?

Ampoules for injections have a specially applied marker: a color point on the top of the glass bowl. Such ampoules do not open any difficulty. It is important only an ampouale to take in hand: the marker must be addressed to you. Even without the use of protective agents, the ampoule head is easily shaken by a sharp movement from myself.

Some manufacturers still work on the old equipment and drugs for injection are packaged in ampoules an ancient quality; Samples that do not have a special marker and so name, necks on the case. Such an ampoule should be opened using a special cutting plate invested in the packaging. With this simple device, it is done on the top of the ampoule and further everything as in the first case: a sharp movement from myself. The only nuance - it is advisable to use a cotton disk or a piece of bandage, so as not to paint the hand at the opening, because If you have not allowed to be made poorly, then glass fragments can form when lambing.

That's all the wisdom.

P.S. If the cutting record is randomly lost, then open the ampoule will help you with a simple abrasive stone, which we usually accurate kitchen knives.

The ampoule was with a point but stubborn, I made a injection from this ampoule, would the shards fall into the bloodstream and do not enter the troubles?

I will tell you how I do this personally because of my profession. For this, it is enough so that at hand it turned out to be a small knife - a sawing, which is usually embedded in a box with ampool medicines. True, very often I see that this is the very pail itself and not in boxes, and why I do not understand, because earlier there was such a file in any box with medicinal ampups or a cardboard basis or metal. Now, neither the other often does not happen in them, and I began to keep them so that you can use again. I know for sure about this, since I have a medical worker.

And to open the ampoule, after pre-inscription, by treating alcohol, and then it will easily break. In order to take the mob and inspired part overwork, usually, it is very easy for me, sometimes even without a mice, it is easily shaken.

Now release ampoules with point. Next to the point already there is an inscription (either the glass in this place is much thinner than the glass of the ampoule itself), according to which the spout of the ampoule will break. Therefore, the end of the ampoule is needed sharply break away from yourself at the point.

If there are no points on the ampoule, then the ampoule needs to wriggle Alone. For this package invests special metal plate (scarifier). Instead of a plate can be used knife, nail file, file, stitching for sharpening knives and even sandpaper.

When the first time in my life revealed the ampoule, it was possible to make it only barbaric way. The ampoule was ordinary, with a long thin spout. I could not break down, then I only had to knock on a knife on it, leaning the ampoule to the edge of the metal shell. True, fragments of the aircraft equally scattered outside the sink, but some kind of medicine did not shed a miracle!

Progress does not stand still. In the society of consumption today everything is aimed at making goods more convenient and easy to use. This also applies to pharmaceuticals. If a few years ago, the ampoules were produced solid, which it was necessary to be closed with a special saw blade, then everything changed over time. At first, the saws were changed - they became more convenient and sharper, and today and at all ampoule to reveal, do not have to enhance. She is already inscribing. On such ampoules there is a point or strip. To open it - just put on the top of the ampoules and that's it.

See this: if you bought the packaging of ampoules for injections and there is a sawnka in it, then the ampoules need to be inscribed, and then take the blade and break the edge. If there is no pail in packing with ampulus, it means simply take the car (so as not to impass yourself with a fragment) and take the top of the ampoules.

If there was no special file in the box with ampulus, then you can use a nail file, a small troghedral or diamond-shaft. I have such a lot and for my wife I gave to the undivided use of one such miniature with a diamond crumb. Slightly inscribe the neck of the ampoules and you can already take the mob and a sharp movement to calm down. This is just in case not to cut your fingers with glass wreckage.

I had to use a regular knife in the field. Just holding a firmly ampule and a sharp blow of a hunting knife to hit the neck of ampoules from top to bottom. But necessarily need a sharpness of the strike.

Now there are no problems with this, almost all ampoules cause markings or a point or a strip you press it and no problems. And if the packaging without label accidentally got, it means there should be a special plate inside.

I have a tip of the ampoule C (fiz. Solution) reacted.

Is it possible to choose a solution from such an ampoule?

What are the consequences if you make an injection in the Muscle Fiz. Solution from such an ampoule?

Almost all modern ampoules are manufactured with a special rim (red or white), it is enough to press it gently and the ampoule will open.

But, unfortunately, the domestic pharmaceutical industry for some reason still produces ampoules of the old sample, to open them - really a difficult matter. True, almost always in a box with ampulus put a special file - she needs to cut the neck of the ampoules, cover with a napkin and gently break down. If there are no files, or she was lost, one doctor advised me to do this: take a faience plate, turn it over and about the rim (on which she stands) to tell the ampoule, the effect is the same as the appearance.

First, it is recommended to knock on the top of the ampoule so that the entire liquid moves through the shaking of the ampoule. Then we have a napkin around the neck of the ampoule - it must be broken by a sharp movement from myself. The broken neck of the ampoules must be immediately thrown away.

When buying, check - in the package there should be a metal strip with rough edges, a knife for ampoules. If not - ask other packages 🙂 Conduct the edge of the knife over the ampoule in the place where it is spinning and turns into the housing, optionally with force - just to stay next. After that, in one hand, the housing, to another nose and lagged it.

I opened quickly and simple. To open the ampoule, I took the towel and gently and slowly shone the top of myself. Another option is that there are ampoules with an existing inscription, they will be discovered in this way even easier.

Just take off the extra part of the ampoule. What would be hurt with a towel.

The modern pharmaceutical industry offers several types of glass packaging for injection preparations that are opened in different ways.

History ampoules
And everything began in the 19th century. The opinions of historians regarding the inventor of the ampoules are divergent. Some believe that Russian Pharmacist A.V. Pel became the progenitor of Tara. The Western experts give the palm of the championship of the Frenchman Stanislav Limuzen. But the fact is that in the 1980s, a glass vessel with a narrow elongated neck and a wide base, intended for storing a sterile drug, was invented in the 1980s. The title of the capacity has happened from the Greek word "amphora" - the vessel. Until now, domestic pharmaceutical producers produce injection forms in ampoules, to pain resembling a 130-year old "old woman."

Glass ampoule without notches
To successfully open the glass ampoule, you need, armed with knowledge, attach strength and dexterity of the hands. The conscientious manufacturer must complete the packaging with a drug as a scarifier or knife for ampoules. In this case, the buyer is lucky and the algorithm of action is standard:

shake the ampoule;
using a scarifier to cut the neck of the ampoules by choosing the optimal distance from the top;
wipe the place inscribed with alcohol;
wrap the neck with a cotton or napkin and in the "From Yourso" position to break out the inscribed tip of the ampoule.

Secondly, as an abrasive means to open the ampoule to use a nail file, pre-rubbed its alcohol.

Glass ampoule with notch
According to European standards, the ampoules must have a color ring or a break point. Glass in a breakthrough place is much thinner, and open an ampoule with a point is no difficulty. Having treated the ampoule with an antiseptic and armed with a napkin, it is necessary to press on the notch and carefully choking the neck of the ampoules - that's the whole algorithm.

Dry powder bottle
Some drugs are not stable in a dissolved form and are produced as a powder. If you have become the best possessor with a dry powder, the task of opening it and the extraction of the medication can turn into a puzzle.

Secondly, the syringe needs.

Well, the process itself:

in the syringe, you must dial the required volume of the solvent (read the instructions for the drug);
from the bottle, remove the lid (it happens metal, it is cut off with scissors or knife, and plastic);
under the top cover to detect the lower, rubber, which not to forget to wipe with alcohol;
pushing the needle the syringe rubber cover, enter the solvent inside the bottle;
carefully shake the bottle, make sure that the whole drug dissolved;
score with the same syringe solution;
change the needle on the syringe to a new, sterile.

And treat health!

Sometimes it is necessary to make injection at home. This may be injected by vitamins, soothing drugs or by appointing a doctor. You can not always contact the clinic, where they know exactly how to open the ampoule and introduce the drug. But how to protect yourself from mistakes and not harm, making a root of the house?

How to open the ampoule?

First of all, you must properly open the ampoule. There are two types of ampoules by opening method:

traditional who require inscribed on the neck;
with a point in a glass of glass bowl.

First you need to determine the type of ampoule. This is usually not written on the package. But a faded glance on the glass flask is enough to understand whether it belongs to traditional or not.

The AMPUILE OPENING sequence includes the following steps:

1) the abrasive edges are inscribed on one side of the neck;

2) without excess effort 3-4 times is carried out by a sawn over the selected side of the ampoule;

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The modern pharmaceutical industry offers several types of glass packaging for injection preparations that are opened in different ways.

History ampoules
And everything began in the 19th century. The opinions of historians regarding the inventor of the ampoules are divergent. Some believe that Russian Pharmacist A.V. Pel became the progenitor of Tara. The Western experts give the palm of the championship of the Frenchman Stanislav Limuzen. But the fact is that in the 1980s, a glass vessel with a narrow elongated neck and a wide base, intended for storing a sterile drug, was invented in the 1980s. The title of the capacity has happened from the Greek word "amphora" - the vessel. Until now, domestic pharmaceutical producers produce injection forms in ampoules, to pain resembling a 130-year old "old woman."

Glass ampoule without notches
To successfully open the glass ampoule, you need, armed with knowledge, attach strength and dexterity of the hands. The conscientious manufacturer must complete the packaging with a drug as a scarifier or knife for ampoules. In this case, the buyer is lucky and the algorithm of action is standard:

shake the ampoule;
using a scarifier to cut the neck of the ampoules by choosing the optimal distance from the top;
wipe the place inscribed with alcohol;
wrap the neck with a cotton or napkin and in the "From Yourso" position to break out the inscribed tip of the ampoule.

Secondly, as an abrasive means to open the ampoule to use a nail file, pre-rubbed its alcohol.

Glass ampoule with notch
According to European standards, the ampoules must have a color ring or a break point. Glass in a breakthrough place is much thinner, and open an ampoule with a point is no difficulty. Having treated the ampoule with an antiseptic and armed with a napkin, it is necessary to press on the notch and carefully choking the neck of the ampoules - that's the whole algorithm.

Dry powder bottle
Some drugs are not stable in a dissolved form and are produced as a powder. If you have become the best possessor with a dry powder, the task of opening it and the extraction of the medication can turn into a puzzle.

Secondly, the syringe needs.

Well, the process itself:

in the syringe, you must dial the required volume of the solvent (read the instructions for the drug);
from the bottle, remove the lid (it happens metal, it is cut off with scissors or knife, and plastic);
under the top cover to detect the lower, rubber, which not to forget to wipe with alcohol;
pushing the needle the syringe rubber cover, enter the solvent inside the bottle;
carefully shake the bottle, make sure that the whole drug dissolved;
score with the same syringe solution;
change the needle on the syringe to a new, sterile.

And treat health!

Ampoule is a glass sealed container intended for storing liquid and powdered medicines. Since its main feature is tightness, it should be assumed that it is posing on all sides and get to its contents sometimes very difficult.

So, consider the methods that answer the question: "How to open an ampoule without causing harm to yourself and others?" In addition, we will understand what they are and for what are needed.

How to open an ampoule with liquid medicine

As a rule, all tanks made of drugs for drugs are divided into 2 types: fully glass and those with a metal lid. In order to open the first variety, you must consistently do the following operations:

Read the name of the medicine, special attention should be paid to its expiration date.
Capacity must be shake so that the medicine is completely sank down and is not shed during depressurization.
If the set to the ampule includes an inscription subject (as a rule, it is a sandpaper), it is necessary to work around the circle in the narrow part of the tank, at the place of the transition of the neck to the ampoule itself.
Take a piece of molding or paper napkin and donate the neck in the direction from ourselves in order to avoid possible damage when the glass is crumbling.
Open an ampoule.

In the event that in the kit it does not have a necessary saw, it can be replaced with such imaging agents, like or

How to open an ampoule with dry powder

If, by purchasing a box with a drug, you found that the medicine is a dry powder, and an iron ampoule cover, in order to open it, you need to do the following:

What other ampoules are

Recently, drug manufacturers have come up with a safe opening of the ampoules without the help of foreign objects. In this case, on the neck at the place of transition to the bubble itself there is no longer there is no glass and the top can just break down. But there are also unique ampoules that are sealed by aluminum, and sometimes open them on their own. For example, mexidela in ampoules is packaged. This drug is used to improve the blood supply to the brain, reduce the overall level of cholesterol in the vessels, and also escorts as first aid for narcotic or alcohol intoxication, epilepsy and convulsions. As a rule, similar ampoules are sold only to medical institutions, and after use, their number is taken into account. Also occurs with all hermetic packages containing narcotic substances.

Thus, the article was found the answer to the question: "How to open an ampoule?" You should not apply any other methods if they threaten the health of others and carry the possibility of changing the composition of the drug.

1. Carefully inspect the ampoule, Read the name of the medicine, its number and shelf life. 2. Shake the ampouleSo that the medicine fell down, and inscribe in the place of transition from a narrow part to the wide (there is a sawo in the box with a medicine). 3. A special sawmaker for ampoules is well inspired by the "neck" ampoules around the circumference. 4. Vatka, moistened with alcohol, wipe the ampoule and fomb the tip in the direction of yourself (better wrap the ampoule with a paper napkin or cotton - So you will protect yourself from a random cut). 5. Lower the needle with a syringe into the ampoule, pull the piston on yourself and type the medicine.

Note that when you set medicines from an ampoule or vial, when contacting the needle with the vessel walls (and / or its bottom), the needle tip can be "wrapped", and thus the needle is blinking.
For this reason, medicine is considered correct for injection to use two needles: one - to gain the drug, the second is directly injecting.
The second reason for the need is two needles - the Asepta Rules. With a plurality of manipulations with a needle, especially when contacting the bottle lid, etc., the needle sterility is disturbed and thus increases the likelihood of the development of complications after the injection.

Air entering the body with intramuscular hug is not scary, but not desirable.

With intramuscular administration, the air remaining in the syringe can enter either in the muscle / intercellular space or in the vessel (capillary). Air bubble in a capillary can block it, and the escape will occur. In a more severe case (and with a large amount of air), when air intake in the muscle, the so-called "air infiltrate" (pins, seal) can be formed - with all the usual symptoms and consequences of infiltrate. It is unpleasant, but not dangerous.
In our opinion, it is better to carry out an injection in accordance with the instructions, and "knock out" air bubbles from the syringe before the introduction of the drug into the body.