home · Tool · What you need to know about catheters and butterflies? Butterfly catheter - for all occasions Placement of a butterfly needle for intravenous infusions

What you need to know about catheters and butterflies? Butterfly catheter - for all occasions Placement of a butterfly needle for intravenous infusions

A clinical blood test is one of the list of standard procedures for the prevention or treatment of patients. It allows you to estimate the amount of hemoglobin, red blood cells, leukocytes, platelets, and identify the color indicator. Blood is collected in only two ways - from the ring finger or from a vein. A needle or butterfly catheter is used to collect venous blood. What do you need to know about medical instruments, what are their types and how to use a butterfly needle correctly?

What you need to know about the needle butterfly?

A butterfly needle is a standard medical needle that has a catheter attached to it. In practice, only two types of needles are used - hollow and surgical. "Butterfly" belongs to the first category. It can be used to perform injections, collect/transfer samples and biological samples. Most often, the needle is used to collect venous blood in children and patients with thin veins. The tubes are made of austenitic stainless steel of one of the types specified in the relevant state documentation.

The production of medical instruments is strictly regulated by the state to ensure maximum safety and quality. The needles themselves are used in pediatrics, some intensive care units, veterinary medicine and gerontology (the science of aging of all living organisms).

Catheter – medical instrument in the form of a tube, through which the vessels are connected to external environment for subsequent emptying. A soft catheter is attached to the butterfly needle. It is made of plastic materials such as plasticized polyvinyl chloride or rubber. For the “butterfly”, vascular catheters with a venous cannula are used. Cannula is a hollow soft tube that is inserted into the internal cavity human body. The catheter facilitates not only blood sampling, but also the introduction of drugs into the bloodstream or detoxification.

Absolutely all catheters require additional fixation. They are attached to the skin with patches, suture material or special fasteners. The cannula is equipped flexible clamp(made from lightly colored polyethylene), which visually resembles butterfly wings. Because of this similarity, the instrument got its name. The color of the retainer is not chosen for ethical reasons, but to indicate the size of the needle. Size range of needles: 18, 19, 21, 22, 23, 25, 27. Each number is assigned a specific shade of the palette, which helps doctors and nurses quickly navigate the instruments. To avoid confusion, the needle size is marked on the wings of the fixator and is additionally indicated on the sterile individual packaging.

What is a luer adapter?

The luer adapter is one of the components of the butterfly needle. Visually, it resembles a container for collecting, transporting and storing biological materials. One part of the device is a luer connector. With its help, the adapter is connected to the catheter holder. On modern market You can find two variations of the device for collecting blood - with a luer adapter or a holder holder. Luer allows you to perform several manipulations at once - take blood for analysis, conduct intravenous injection, attach the needle to the solution infusion system.

The second part of the device is a needle for piercing a vacuum tube. It is closed with a dense rubber cap, which prevents blood from splashing when removing or transporting the sample. All luer adapters are supplied in individual cases with an information label and perforations for visual inspection.

Advantages and disadvantages of medical instruments

The strength of the butterfly needle is its versatility. It is suitable for collecting biological fluid from patients of any age category. It is even used to diagnose the blood of newborns or babies who are on breastfeeding, if the amount of blood obtained from the heel with a lancet is not enough. Strong fixation of the catheter greatly simplifies the task for both the patient and the doctor or nurse. A medical professional will be able to easily and accurately obtain blood from even the most active and frightened clients. The advantages of the needle include minimal tissue trauma. Compared to conventional double-ended needles or vacuum tubes, the risk of nerve damage with a butterfly needle is significantly lower.

What are the disadvantages of a butterfly catheter? The first thing you should pay attention to is the size of the needle. It is much smaller than a standard double-ended blood collection needle. This increases the risk of cell damage. Platelets can simply stick together, and red blood cells can be destroyed, releasing into environment hemoglobin. To avoid this, the medical professional must select the correct needle size and strictly follow the rules for collecting biological material. Disadvantages can also include high cost butterfly needles, decreased pressure and “escaping” of the vein during the procedure.

Another disadvantage is the relatively slow blood flow. The smaller the needle is in the vein, the faster the body can recover and recover from stress (even minimal). When drawing blood with a butterfly needle, the liquid passes through the cannula quite slowly, which increases the time the needle remains in the vessel. As a result, a larger volume of blood may be required to fill the entire catheter tube, including the dead space. Some nurses use an empty vacuum tube to fill the "dead space" and then discard it.

If the amount of biological fluid obtained is still not enough, the medical professional performs a second venipuncture. He pierces the wall of the venous vessel again, inserts a needle and draws blood a second time.

Needle size, (G)

Color code

violet

orange

brown

Features

8-495-789-38-01(02)

Device for infusion into small veins with a “butterfly” needle for one-time use. The “butterfly” needle is so called because of the plastic wings that allow the device to be firmly fixed to the patient’s body.

The wings are colored different colors, according to the size and diameter of the needle, according to the international color coding. The device is equipped with a needle with a special sharpening and silicone treatment, which makes penetration into tissue the least painful. Included in devices for infusion into small veins with butterfly needles A 30 cm long kink-resistant hose is included, allowing the procedure to be performed at a distance from the puncture site.

Manufactured by SFM Hospital Products GmbH, Germany

Needle size, (G)

Needle outer diameter x length, mm

Color code

violet

orange

brown

Features device for infusion into small veins with a “butterfly” needle:

  • flexible additional tubes: the needle does not move inside the vein when manipulating the tube and therefore the risk is minimized mechanical damage vascular wall;
  • ease of needle insertion due to special sharpening of the needle;
  • long additional tubes (30 cm): other procedures can be performed at a distance from the puncture site;
  • flexible “wings” provide easier and more effective fixation;
  • ISO color coding, needle diameter is additionally marked on the “wings”.

Additional information by phone. 8-495-789-38-01(02)

BUTTERFLY NEEDLE FOR INFUSION INTO SMALL VEINS

Device for infusion into small veins with a “butterfly” needle for one-time use. The “butterfly” needle is so called because of the plastic wings that allow the device to be firmly fixed to the patient’s body.

The wings are painted in different colors according to the size and diameter of the needle, according to the international color code. The device is equipped with a needle with a special sharpening and silicone treatment, which makes penetration into tissue the least painful. Included in devices for infusion into small veins with butterfly needles A 30 cm long kink-resistant hose is included, allowing the procedure to be performed at a distance from the puncture site.

Manufactured by SFM Hospital Products GmbH, Germany

Needle size, (G)

Needle outer diameter x length, mm

Color code

violet

orange

brown

Features device for infusion into small veins with a “butterfly” needle:

  • flexible additional tubes: the needle does not move inside the vein when manipulating the tube and, therefore, the risk of mechanical damage to the vascular wall is minimized;
  • ease of needle insertion due to special sharpening of the needle;
  • long additional tubes (30 cm): other procedures can be performed at a distance from the puncture site;
  • flexible “wings” provide easier and more effective fixation;
  • ISO color coding, needle diameter is additionally marked on the “wings”.

Additional information by phone. 8-495-789-38-01(02)

BUTTERFLY NEEDLE FOR INFUSION INTO SMALL VEINS

Device for infusion into small veins with a “butterfly” needle for one-time use. The “butterfly” needle is so called because of the plastic wings that allow the device to be firmly fixed to the patient’s body.

The wings are painted in different colors according to the size and diameter of the needle, according to the international color code. The device is equipped with a needle with a special sharpening and silicone treatment, which makes penetration into tissue the least painful. Included in devices for infusion into small veins with butterfly needles A 30 cm long kink-resistant hose is included, allowing the procedure to be performed at a distance from the puncture site.

Manufactured by SFM Hospital Products GmbH, Germany

Needle size, (G)

Needle outer diameter x length, mm

Color code

violet

orange

brown

Features device for infusion into small veins with a “butterfly” needle:

  • flexible additional tubes: the needle does not move inside the vein when manipulating the tube and, therefore, the risk of mechanical damage to the vascular wall is minimized;
  • ease of needle insertion due to special sharpening of the needle;
  • long additional tubes (30 cm): other procedures can be performed at a distance from the puncture site;
  • flexible “wings” provide easier and more effective fixation;
  • ISO color coding, needle diameter is additionally marked on the “wings”.

Additional information by phone. 8-495-789-38-01(02)

BUTTERFLY NEEDLE FOR INFUSION INTO SMALL VEINS

Device for infusion into small veins with a “butterfly” needle for one-time use. The “butterfly” needle is so called because of the plastic wings that allow the device to be firmly fixed to the patient’s body.

The wings are painted in different colors according to the size and diameter of the needle, according to the international color code. The device is equipped with a needle with a special sharpening and silicone treatment, which makes penetration into tissue the least painful. Included in devices for infusion into small veins with butterfly needles A 30 cm long kink-resistant hose is included, allowing the procedure to be performed at a distance from the puncture site.

About 10 years ago from medical instruments For administering medications, only syringes were known, and even then they were reusable. Today, scientific and technological progress has made it possible to evaluate the advantages of sterile disposable syringes, blood transfusion systems, droppers and catheters.

What is a catheter and why is it needed?

Catheters are intended for long-term infusion medicines. They are intravenous, intra-arterial, as well as for lymphatic vessels and hemodialysis. Each product is individually packaged and looks like a sophisticated, modernized needle. The top is made of transparent medical plastic, through which you can clearly see the catheter and needle itself.

How are catheters different from butterfly needles?

A “butterfly” is a needle that has additional adhesive wings that allow it to be fixed to the skin. But besides this there are a few more fundamental differences:

  • When using a catheter, the catheter itself remains in the vessel, and when using butterflies, the needle remains.
  • The hand in which the catheter is located can be safely moved and not worry about damaging the vein - such a device can remain in the vein for up to three days. While the slightest displacement of the skin or arm in which the butterfly is installed can injure the veins, that is why the time of use should not exceed 1 hour.
  • “Butterflies” are used for short-term infusions and manipulations, and catheters for long-term ones. Scope of application The scope of catheters depends on its type:
  • Intravenous catheters for peripheral veins are widely used in all surgical procedures and during childbirth.
  • Products that are installed in central veins are more often used in cardiac surgery, intensive care, and oncology.
  • Catheters for moving from peripheral to central veins are needed in neonatology, oncology and intensive care.
  • Intra-arterial ones must clearly withstand blood pressure. Used in toxicology, vascular and cardiac surgery.

Standard sizes of systems for infusion into small veins (mini-veins) Terumo (butterfly needles for thin veins Terumo Surflo SV-BL, devices for infusion into thin fragile veins)

Terumo Surflo SV-BL 1.1 x 19 mm 19Gx3/4″

Terumo Surflo SV-BL 0.8 x 19 mm 21Gx3/4″

Terumo Surflo SV-BL 0.7 x 19 mm 22Gx3/4″

Terumo Surflo SV-BL 0.6 x 19 mm 23Gx3/4″

Terumo Surflo SV-BL 0.5 x 19 mm 25Gx3/4″

Butterfly needles consist of:

  • steel needle with a laser-sharpened unique cut in three planes, the needle is coated with silicon (siliconized),
  • plastic wings for fixing the needle to the skin, which ensures infusion using the fixed vein technique,
  • flexible plastic extension tube so that you can attach a syringe and/or drip (intravenous infusion system) without moving the needle in the lumen of the vein, leaving the vein wall as intact as possible, minimizing the risk of “leaving” the vein, and as a result, reducing frequency of unsuccessful infusions,
  • female Luer connector for connecting to a source of solution for infusion or a container for blood collection.

The purpose of butterfly needles is to carry out a short-term infusion into thin, fragile, brittle veins.

To draw blood into vacuum tubes, the Terumo Surflo butterfly needle should be equipped with a luer adapter from any of the manufacturers supplied by Callie LLC, or ordered from Callie LLC. ready set from a butterfly needle with a luer adapter made by Vacutainer (safety lock), Terumo or Vaquette.

Needle catheter butterfly

Needle catheter butterfly

The butterfly catheter needle is intended for short-term puncture of small peripheral veins (up to 6 hours) and intravenous infusions. Sterile for single use.

Sizes: G 18, G19, G20, G21, G22, G23, G25, G27, length 19 mm

  • the butterfly catheter needle is made of a material with a high degree of biotolerance
  • triple sharpening of the needle ensures atraumatic insertion
  • fixing wings securely fasten the butterfly needle
  • infusion is performed through a flexible connecting tube (makes manipulation convenient)
  • the protective cap on the connecting tube is convenient for repeated infusions
  • color coding allows you to quickly determine the needle size

Quantity in transport/inner packaging 4000/50 pcs.

Needle catheter butterfly

Device for infusion into small veins "butterfly needle"

"Butterfly" needle (infusion cannula) - intended for administering medications into peripheral small veins during intravenous infusions, or taking blood for analysis - especially in patients in an unstable condition (neurosis, intoxication, excitability, epilepsy, etc.), as well as infants and young children. The butterfly catheter is very often used in veterinary medicine.

Technical characteristics of butterfly catheter needle

The applied butterfly needle size range: 18, 19, 20, 21, 22, 23, 25, 27 allows their use depending on the diameter of the vein and the viscosity of the injected solution. Catheter intravenous butterfly has flexible “wings” made of lightly colored polyethylene with color coding according to the ISO standard depending on the size of the needle, allowing you to easily and quickly select the desired perfusion device in accordance with the size of the needle, which ensure easy and effective fixation of the device on the surface of the skin. The needle size is additionally marked on "wings"

Packaging: individual sterile blister/polybag packaging, in cardboard box 100 pieces each.

Butterfly system for droppers

​Purpose:​ for administering medications into peripheral small veins.

  • Atraumatic needles provide painless insertion under the skin.
  • Infusion occurs through thin flexible connecting tubes.
  • Sterile.
  • For single use.
  • Needle length: 19±1mm, catheter length:mm.

Shelf life: 5 years.

Quantity per package/box: 100/2000pcs.

Your order will be processed as soon as possible, our employees will contact you and promptly deliver the goods.

Butterfly catheter - for all occasions

What are peripheral catheters used for?

A peripheral catheter is a medical device designed and used for long-term (up to three days) administration of medications, liquids into venous vessels or removal of liquids from the circulatory system.

The catheter is inserted using a special hollow needle. This product is usually inserted into the arms, neck or head. In this case, various infusion systems are connected to the second end of the catheter.

Interestingly, such products are the best option when there is a need intravenous administration drugs for a long time.

What is a butterfly needle?

The butterfly catheter is a type intravenous catheters. This is a sterile, single-use injection needle with locking wings that is great for short-term drug administration or blood collection.

The main purpose of the “butterfly” for which it is suitable the best way– introduction of medications and drugs into peripheral small veins during infusion therapy. Also, a butterfly catheter, which you can buy on our website in the appropriate section, provides the opportunity to collect blood from so-called “problem patients.” At the same time, it is the latter reason that determines the high demand and relevance in the departments of intensive care, pediatrics and veterinary medicine.

As practice shows, peripheral veins located on the forearms or in the cubital fossae are most often used to carry out procedures for intravenous administration of drugs and solutions, as well as drawing blood using a butterfly needle.

Features of the butterfly needle

This catheter is characterized by a number of advantages and disadvantages, which in many cases make this product indispensable during medical procedures.

The first advantage is that the main element, the puncture needle, is made of the finest medical steel highest quality, which makes it possible to guarantee its maximum level of strength along with minimum thickness walls

The needle is only 1.9 cm long, which, together with the triple sharpening system, ensures its insertion under the skin into the veins with virtually no pain or injury.

The insertion and collection procedures are carried out through thin transparent connecting tubes made of polyvinyl chloride, which are highly resistant to various kinds of kinks.

What’s interesting is that the wings, from which the catheter received its original name, allow the catheter to be firmly and reliably fixed and avoid its spontaneous removal, which is very necessary and in demand in many cases.

The butterfly needle is a simple, highly effective and reliable peripheral catheter, which can be easily purchased in our online store at an affordable price.

Butterfly system for droppers

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Syringes, needles, systems

Butterfly needles

The “Butterfly Needle” device is intended for insertion into peripheral small veins during intravenous infusion. Butterfly needles are especially relevant in pediatrics, intensive care units and veterinary medicine.

  • short atraumatic needles with special sharpening ensure easy, safe penetration under the skin
  • Flexible “wings” provide easy and effective fixation. The wings have color coding depending on the size of the injection needle. Butterfly needles are sized according to needle sizes.
  • the infusion occurs through thin flexible connecting tubes, thanks to which the needle does not move inside the vein when manipulating the tube and, therefore, the risk of mechanical damage to the vessel wall is minimized.
  • Protective plug cap provides additional convenience during repeated infusions

What you need to know about catheters and butterflies?

About 10 years ago, the only medical equipment for administering medications was syringes, and even those were reusable. Today, scientific and technological progress has made it possible to evaluate the advantages of sterile disposable syringes, blood transfusion systems, droppers and catheters.

What is a catheter and why is it needed?

Catheters are intended for long-term infusion of medications. They are intravenous, intra-arterial, as well as for lymphatic vessels and hemodialysis. Each product is individually packaged and looks like a sophisticated, modernized needle. The top is made of transparent medical plastic, through which you can clearly see the catheter and needle itself.

How are catheters different from butterfly needles?

A “butterfly” is a needle that has additional adhesive wings that allow it to be fixed to the skin. But besides this there are a few more fundamental differences:

  • When using a catheter, the catheter itself remains in the vessel, and when using butterflies, the needle remains.
  • The hand in which the catheter is located can be safely moved and not worry about damaging the vein - such a device can remain in the vein for up to three days. While the slightest displacement of the skin or arm in which the butterfly is installed can injure the veins, that is why the time of use should not exceed 1 hour.
  • “Butterflies” are used for short-term infusions and manipulations, and catheters for long-term ones. Scope of application The scope of catheters depends on its type:
  • Intravenous catheters for peripheral veins are widely used in all surgical procedures and during childbirth.
  • Products that are installed in central veins are more often used in cardiac surgery, intensive care, and oncology.
  • Catheters for moving from peripheral to central veins are needed in neonatology, oncology and intensive care.
  • Intra-arterial ones must clearly withstand blood pressure. Used in toxicology, vascular and cardiac surgery.

Lightmed company managers will advise you and help you choose the necessary consumables. tel.

Needle catheter butterfly

DEVICE FOR INFUSION INTO SMALL VEINS

"NEEDLE-BUTTERFLY"

“Butterfly” needle (infusion cannula) - intended for administering medications into peripheral small veins during intravenous infusions, or taking blood for analysis - especially in patients in an unstable condition (neurosis, intoxication, excitability, epilepsy, etc.), as well as infants and young children. The butterfly catheter is very often used in veterinary medicine.

TECHNICAL SPECIFICATIONS NEEDLE CATHETER BUTTERFLY

The butterfly catheter needle is a flexible, thin transparent tube made of medical-grade polyvinyl chloride, 300 mm long, which allows manipulations to be carried out far from the venipuncture site, reducing the risk of needle displacement and accidental damage to the vein. At one end of the butterfly catheter there is a Luer or Luer-Lock connection with a protective cap (for convenience during repeated infusions, it allows choice depending on the medical procedure being performed), at the other end of the tube there is a catheter (thin-walled steel needle made of medical steel with triangular sharpening for easy insertion into a vein with a protective cap).

The applied butterfly needle size range: 18, 19, 20, 21, 22, 23, 25, 27 allows their use depending on the diameter of the vein and the viscosity of the injected solution. The intravenous butterfly catheter has flexible “wings” made of lightly colored polyethylene with a color ISO coding depending on the needle size allows you to easily and quickly select the desired perfusion device in accordance with the needle size, which ensures easy and effective fixation of the device on the skin surface. The needle size is additionally marked on the “wings”

Sterilization: ethylene oxide, non-toxic, pyrogen-free.

Shelf life: 3 years

Packaging: individual sterile blister packaging in multiples of 100 pcs. in the box.

Respiratory support, tubes and suction catheters

Peripheral catheters

and infusion systems

Dressing materials

Peripheral catheters

Infusion systems

Respiratory support, probes, suction tips and kits

Please pay attention! The company's assortment now includes products for respiratory support, gastroenterology and aspiration.

30% discount on Kruoframe 8x13.5 (bandage for fixing the central ventricle).

Flytek® BV1

Scope of application

Infusion of infusion solutions from glass bottles into peripheral veins and plastic containers. Typically used for parenteral nutrition of patients. For single use

Instructions for use

1. Open the package

2. Close the flow control

3. Insert the tip into the liquid container.

4. Squeeze the drip chamber until the liquid fills half of the drip chamber.

5. Open the flow regulator and release air from the system by filling it with solution.

6. Close the flow regulator.

7. Perform venipuncture

8. Set the regulator to the fluid flow rate in the system; 20 drops of outgoing distilled water from the tube correspond to 1 (+-0.1) ml (+-0.1 g).

  • It is used for infusion of infusion solutions from glass bottles and plastic containers into peripheral veins.
  • The cork piercing spike is protected by a polypropylene cap.
  • The air valve is equipped with a waterproof membrane for air purification.
  • The sterile infusion set has a filter that traps bacteria, bacterial endotoxins, and particulate matter.
  • The roller regulator smoothly changes the infusion rate: at least 20 drops = 1 ml. (±0.1 ml.)
  • Transparent soft drip chamber and connecting tube allow you to control the infusion procedure

The fixing wings securely secure the butterfly needle.

  • Luer Slip
  • Attention! Not suitable for transfusion of blood and its components.

    BUTTERFLY NEEDLE WITH CATHETER

    General information. Children early age medicinal substances can be injected into the superficial veins of the head. During the procedure, the child is restrained. His head is held by a nurse assistant, his arms to his body and his legs are fixed with a diaper (sheet). If there is hair at the site of the intended puncture, the hair is shaved off.

    Indications: impossibility of intravenous administration medicines into other peripheral and central veins.

    Contraindications: damage to the scalp.

    Injection sites: saphenous veins of the temporal and frontal areas of the skull.

    Workplace equipment: 1) butterfly needle with a disposable catheter; 2) a bottle with a filled system for single-use intravenous drips, a stand; 3) ampoule (bottle) with 0.9% sodium chloride solution; 4) single-use syringe with a volume of 5 ml, injection needles; 5) sterile material (cotton balls, gauze triangles, napkins, diapers) in packages or boxes; 6) tray for sterile material; 7) tray for used material; 8) pins in packaging; 9) sterile tweezers; 10) tweezers in a disinfectant solution; 11) file, scissors; 12) a dispenser container with an antiseptic for treating the skin of patients and the hands of staff; 13) a container with a disinfectant solution for processing ampoules and other medicinal injection forms; 14) a patch (regular or Tegoderm type) or other fixing bandage; 15) medical gloves (single use); mask, goggles (plastic screen), waterproof, disinfected apron; 16) tweezers for working with used instruments; 17) containers with disinfectant for treating surfaces, washing used needles, syringes (systems), soaking used syringes (systems), needles, disinfecting cotton balls and gauze wipes, used rags; 18) clean rags; 19) tool table.

    Preparatory stage of the manipulation: 1. Inform the patient (close relatives) about the need to perform and the essence of the procedure.

    2. Obtain the consent of the patient (close relatives) to perform the procedure.

    3. Wash your hands under running water, lathering twice. Dry your hands with a disposable napkin (individual towel). Treat your hands with an antiseptic. Wear an apron, gloves, and mask.

    4. Treat the surface of the manipulation table, tray, apron, and system stand with a disinfectant solution. Wash your gloved hands under running water and soap, dry, and treat with an antiseptic.

    5. Place the necessary equipment on the tool table.

    6. Cover the sterile tray.

    7. Print out the packages with the butterfly catheter and syringes and place them on a tray. Another option for working with sterile material when it is in packages.

    8. Treat the ampoule (bottle) with sodium chloride solution 0.9%.

    9. Draw 2 ml into the syringe connect to the catheter, fill it and place it on the tray.

    10. Fix the child (performed by a nurse assistant). Place a sterile diaper next to the baby's head.

    11. Wear safety glasses (plastic shield).

    The main stage of performing the manipulation.12. Select a vessel for puncture and treat the injection site with two balls of antiseptic (one wide, the other narrow) in the direction from the parietal to the frontal region. For better blood supply to the vein, it is convenient to use a special elastic band placed around the head below the punctured area (above the eyebrows). Local digital compression of the vein is ineffective due to the abundance of venous anastomoses of the cranial vault. A baby's crying also causes the veins in the head to swell.

    13. Treat gloved hands with an antiseptic.

    14. Stretch the skin in the area of ​​the intended puncture to fix the vein.

    15. Puncture the vein with a butterfly needle and catheter in three stages . To do this, direct the needle along the blood flow under acute angle to the surface of the skin and puncture it. Then advance the needle approximately 0.5 cm, pierce the vein and guide it along its course. If the needle is not in the vein, return it without removing it from under the skin and re-puncture the vein.

    Inserting a needle into a vessel immediately after puncturing the skin may puncture both walls of the vessel.

    16. Pull the plunger of the syringe connected to the catheter. The appearance of blood indicates the correct position of the needle. If an elastic band was used to increase blood flow to the vein, remove it.

    17. Inject 1 - 1.5 ml sodium chloride solution 0.9%, to avoid thrombosis of the needle with a blood clot and eliminate the possibility of extravasal administration of the drug.

    18. Secure the needle with three strips of adhesive tape: 1st - across the needle to the skin. 2nd - under the “wings” of the “butterfly” needle with a cross above them and fixation to the skin, 3rd - across the wings of the “butterfly” needle to the skin.

    19. Roll the catheter into a ring and secure it with an adhesive tape on the scalp to prevent it from dislodging.

    20. If necessary, if the angle of the needle relative to the curve of the skull is large, place a gauze (cotton) ball under the cannula of the needle.

    21. Pull the plunger of the syringe connected to the catheter to re-check needle position in the vein.

    22. Disconnect the syringe, connect the dropper to the solution stream.

    23. Use the clamp to adjust the rate of administration of the medicinal substance.

    24. Cover with sterile gauze pad the junction of the catheter cannulas and the dropper.