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How the Insujet Kit Works: A Step-by-Step Guide to Needle-Free Insulin Delivery

Written by: Content Team



Time to read 9 min

Diabetes mellitus may be daunting, but it doesn’t always have to be. Whether using a conventional insulin pen or relying on those needle injections, it’s time to step into the future.

You can painlessly inject insulin into the accurate subcutaneous tissue without relying on a needle. Simply understanding how Insujet works will make controlling your blood glucose levels a walk in the park.

In this guide, we’ll show you an in-depth tutorial on how to use the new V5 InsuJetTM injector as if it’s already in your hand.

The InsuJet TM Kit: An Inside Look

If you browse our storefront, you’ll notice six different purchase options, two of which are subscriptions.

The four other options are to purchase the new V5 InsuJetTM Injector, the  InsuJetTM nozzle, the InsuJetTM adaptor, and the all-in-one starter kit.

Per this guide, we’ll talk about the contents of the starter kit since it’s the one that contains everything. Then, we’ll show you the clear steps for a painless, needle-free insulin delivery. First things first, what’s inside?

A Highly Durable Travel Case

This travel case is similar to the cases where you put your glasses in. You can store your InsuJetTM injector inside with its nozzle, cartilage, insulin vial, and adaptor.

You can securely lock the case after closing it using a convenient lock. The case is sturdy enough to be placed in your handbag or backpack without damaging the content inside.

The V5 InsuJet TM Injector

InsuJet's needle-free Injector Kit

The primary item of our advanced insulin therapy is the InsuJetTM injector itself. This lightweight device consists of two parts—the front and the back.

The Front Part

The front part contains the nozzle lock, a rotating part with a space where you put your InsuJetTM nozzle. There’s a lock in that part, which you use to keep the nozzle fixed once you insert it.

The front part also has two arrows, which indicate rotation directions. The right arrow is the +ve direction, and the left is the -ve.

The Middle Part

The middle part connects the front and the back part, and it’s the section responsible for the rotating mechanism of the InsuJetTM injector.

On that part, you’ll find a display window with a scale of numbers underneath. These numbers indicate the units of insulin the device can aspirate. It also has a green mark, indicating the device is ready to aspirate insulin.

The Back Part

This part is the one responsible for the insulin injection. Since the InsuJetTM injector doesn’t need any power to operate, the insulin jet is activated by pressing or squeezing the back part into the middle part.

It also has a safety lock that you have to release before injection to prevent accidental insulin discharge.

Stickers for Identification

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Insujet Injector Kit

These are small adhesive labels that you can place on your V5 InsuJetTM injector to help identify the type of insulin being used.

While this isn’t particularly useful for everyone, those using multiple types of insulin or those using insulin not packed in a standard vial will find those stickers helpful.

5x InsuJet TM 3 mL Adaptors

The adaptors serve as the link between the insulin vial and the nozzle of the injector. They’re also the only part of the InsuJet experience containing a needle.

Don’t worry—this needle isn’t for you. It’s to penetrate the insulin vial’s septum for aspiration.

These adaptors work by creating a tube between the InsuJetTM injector and the insulin vial to safely aspirate the insulin.

5x Cartilage Holders

The InsuJetTM injector can aspirate insulin from 3 mL and 10 mL insulin vials. However, to avoid breaking the fragile 3 mL vials, the starter pack has five cartilage holders to slide in the 3 mL vials.

The 3 mL adaptors and the cartilage holders have a simple but reliable snug-fit mechanism to ensure stability. Once the cartilage is connected to the adaptor, the assembly can be safely connected to the InsuJetTM injector.

5x InsuJet TM 10 mL Adaptors

10 mL vials are fairly larger than the 3 mL ones, which is why they have larger adaptors. The mechanism of usage is similar, except for the cartilage holders.

The 10 mL vials are big enough to be safely used without the need for cartilage holders.

5x InsuJet TM Nozzles

The nozzle is the part that aspirates the insulin from the vials and also the one that injects it into the skin.

These nozzles are needle-free, and they get attached and locked in place to the InsuJetTM injectors using a lock mechanism.

5x Comfort Rings

Using a comfort ring isn’t a must, but it can make your life a lot easier. The comfort ring prevents the nozzle from applying too much pressure at a small point on your skin.

This may not be as painful as a needle injection, but it’s still fairly uncomfortable.

Once you apply the comfort ring, it widens the area of pressure on your skin, making the injection process a lot more comfortable.

1x Protection Cap

When not in use, the nozzle can be covered with a protection cap to prevent accidental damage.

4x User Instructions

Everything we mentioned so far (and everything we’re about to mention) is explained in detail in the four instruction manuals that come with your purchase.

1x Warranty Card

With your purchase, you’ll have a 2-year warranty card to guarantee the quality of your purchase.

Remember that his warranty covers defects in materials and workmanship but doesn’t cover damage caused by shipping or misuse.

The Needle-Free Insulin Injection: A Step-By-Step Guide

Now that we understand the InsuJetTM kit, it’s time to explain the InsuJet mechanism in detail. We’ll also show you some common problems that you might run into, along with their solutions.

1. Install the Nozzle Into the InsuJet TM Injector

InsuJet Kit
InsuJet Kit

The first step is to install the nozzle on the injector. Through this nozzle, the insulin is aspirated into your InsuJetTM. The discharge of insulin from the injector into your body is also done through the nozzle.

To install the nozzle, rotate the upper section of the front part towards the “unlocked” mark.

After that, press the nozzle into the slot and keep pressing until you hear a click. Once secure, rotate the front section again towards the “locked” mark.

It’s best to have the nozzle capped during this procedure to avoid pinching your finger too hard.

2. Charge the InsuJet TM Injector

InsuJet Kit: resetting for aspiration
InsuJet Kit: resetting for aspiration

The process of “charging” your InsuJetTM doesn’t mean charging a battery; it means resetting the injector or preparing it for aspiration.

To charge your injector, hold the InsuJet as seen in this video, and rotate toward the -ve direction until you see the green indicator.

3. Properly Install the Adaptor on the Insulin Vial

InsuJet vial
InsuJet vial

Now that your InsuJetTM is ready to take in the insulin, you should prepare the insulin.

If you’re using a 3 mL vial, you’ll need to place the vial inside the cartilage holder first. Then, hold your 3 mL adaptor and insert it with the needle side into the septum of the vial while it's inside the holder.

Please make sure a snug fit by checking that the adaptor and the cartilage holder are well-integrated. Then, firmly push down on the other side of the adaptor to secure it in place.

You should end up with the vial, the adaptor, and the cartilage holder as a single piece. Have a look at this video for clarification.

You won't use a cartilage holder if you’re using a 10 mL vial. All you have to do is remove the protective cap from the 10 mL adaptor and attach the adaptor with its needle side towards the vial.

If you previously used disposable insulin pens, you can still install them on the adaptor using the same technique.

4. Attach the Adaptor to the Nozzle

InsuJet nozzle

Regardless of which adaptor you’ve used, the process from here on out will be the same. Start by removing the caps of both your nozzle and the adaptor.

Follow this by installing the adaptor on the nozzle using a clockwise rotating mechanism. Unlike all installations so far, pushing the adaptor on the nozzle might break it, so be careful.

5. Prime Your InsuJet TM Injector

InsuJet Kit
InsuJet Kit

Priming the injector is another expression for aspirating insulin with it. At this point, your InsuJetTM should have the green indicator, and its nozzle should be attached firmly to the adaptor.

Hold your InsuJet so the vial would be facing upwards, and tap on the vial to direct any air bubbles to the top.

To aspirate insulin, rotate the front part in the +ve direction according to the number of insulin units you need.

However, there’s something to keep in mind here. Let’s assume that your dose is five units. In this case, you should aspirate six or seven units. This is to compensate for any air bubbles you may have missed.

6. Eliminate Air Bubbles

InsuJet adaptor
InsuJet adaptor

You’ve now primed your InsuJetTM. The next step is to remove the adaptor from the nozzle. Then, tap on the nozzle while holding the InsuJetTM in the same position to direct the air bubbles to the top.

At this point, if you have aspirated one extra unit, then you should rotate one unit to the -ve direction. For example, if your insulin dose is five units and you aspirated six, you should rotate -ve till you get back to five.

The same goes if you have aspirated two units—rotate two units in the -ve direction till you get back to your dose, which is five.


This video will make things crystal clear.

7. Release the Safety Lock and Install the Comfort Ring

InsuJet comfort ring
InsuJet comfort ring

Your InsuJetTM is now ready to use. Install the comfort ring by pushing it against the nozzle, then release the safety lock in the back part until you see the green marker.

8. Insulin Administration

Injecting the InsuJet injector
Injecting the InsuJet injector

On your preferred injection site, hold the InsuJetTM perpendicular to your skin. You may hold the front part for stabilization, but the injection occurs when you press the back part into the front part.

After pressing, keep the InsuJetTM on the injection site for five seconds to ensure that the entire insulin quantity has been administered.

Congratulations, you have now administered your first needle-free jet injection and made your life a lot easier.

Common Problems and Their Solutions

Here are a couple of issues you might run into while using your InsuJetTM:

There’s Too Much Air Inside the Nozzle After Priming

Running into occasional bubbles is fine, but seeing large air pockets indicates an issue.

  • A problem with the adaptor installation: The adaptor is the only part in the InsuJetTM that gets installed through a rotating mechanism. If you haven’t rotated all the way to the end, a lot of air will mix with your insulin, resulting in those large pockets.
  • The adaptor ring is worn out: Look at the adaptor from the inside. You should see a white rubber ring. With time, that ring will degrade and require replacement. If you don’t see the ring or if it looks worn, it’s time to open a new adaptor.
  • The needle didn’t fully penetrate the vial septum: This issue is common with 3 mL vials because some people fail to snug the cartilage and the adaptor, leading to air entrapment. Simply make sure that the components are snug together, and the problem will solve itself.

Have a look at this video for a clear demonstration of how to solve all these issues.

The Verdict

There’s no reason why you should still be injecting yourself with a needle every single day.

Visit our shop today and reach out to us if you have any questions. It’s time to make your insulin therapy a seamless integration into your daily life.

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