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Health

NO to Needles!

Avatar for Dr. Hafsa Akbar Ali Dr. Hafsa Akbar Ali Updated: January 31, 2019

Needleless Injection
Needleless Injection

Needle-free injections enclose a wide range of drug delivery. It passes through the skin with the help of a force such as Lorentz, shock waves, pressure by a gas etc.

Needles are commonly seen as something evil, aren’t they? Many pain-free alternatives are in the works like a micro-needle, patches, a laser-based device etc.

A laser-based device thrust through the skin as micro-jets of liquid and a refined hypodermic design based on a mosquito’s proboscis. A pain-less jet-injection device has come forth from the development limbo with a commercialization deal.

NeedleFree Injection

Prime; a needle-less injection device:

Prime is a device born out of years of research at MIT. The technology verified successful enough that a company called portal instruments were oscillated out of the university for continuous work on it in 2012.

How does it work?

Instead of injecting a patient, Prime inject the drug painlessly. It delivers its drug in the form of liquid. First of all the vessel of the desired drug is added in the device. Its size is of an electric razor. These single-use vessels are loaded with the range of biologics to supply the vaccine, insulin, and hormone.

To supervise the shot a vessel is squeezed by the linear electromagnetic actuator. It pressurized the drug to get through the nozzle that is placed inside the skin. The drug exits the device at 200m (656 ft) per second as raven of liquid and it’s not thicker than a hair. This method is fast and painless. It supplies 1ml dose in half a second.

The diabetic patient has to daily inject himself. So instead of needle injecting, they can use the pain-free injection. The process pain-free could increase adherence.

Drug

Classification of needle-free injection technology:

On the basis of functioning and working:

  • Spring systems
  • Laser-powered
  • Energy propelled systems
    • Lorentz force
    • Gas propelled/air forced
    • Shock-waves

On the basis of the type of load:

  • Liquid
  • Powder
  • Projectile

On the basis of the mechanism of drug delivery.

  • Nano-patches
    • Sandpaper assisted delivery
    • Iontophoresis enabled
    • Micro-needles

On the basis of site of delivery:

  • Intradermal
  • Intramuscular injectors
  • Subcutaneous injectors

Advantages of Needle-free Injections:

  •  Needle-free Injections Eliminates the needle phobia.
  •  Removal of broken needles.
  •  Less pain.
  • Reduce stress.
  • Less vaccine volume.
  • Constant vaccine delivery.
  • Boosts Patient conformity.
  • Increases the vaccination rate.
  • Greater dispersion pattern.
  • Elimination of worker needle stick.
  • Efficient use of the vaccine.
  • No contamination.
  • Greater drug diffusion.
  • A classic approach for developing countries.
  • Relief and cure to the patients that have been insulted many times in a day.
  • Elimination of needle disposal.

Disadvantages of Needle-free Injections:

  • The lack of worker confidence.
  • Trained personnel.
  • Wetness associated with residual vaccine on the skin surface.
  • Greater start-up cost.
  • Worker confidence in NFID.
  • Greater requirements for training.

Adherence of treatment with the help of Needless injections

Some chronic diseases like Diabetes, Inflammatory bowel disease etc. require multiple injections. This effects the adherence of patients to medications. So, the patients normally stop taking these medications because of pain and anxiety associated with the needles.

Therefore, the introduction of needless injections can bring a big change. Patients will adhere to their treatment regimens and hence it will help in the treatment of their diseases.

“It’s an exciting opportunity to improve the lives of patients with Crohn’s and ulcerative colitis,” says CEO Patrick Anquetil Ph.D. ’04, who co-founded Portal with Hunter in 2012.

What can be administered through these needless-injections?

  • Vaccines
  • Insulin
  • Hormone treatments
  • Therapeutics for chronic diseases

Also read: A new era in Diabetic care

The Future prospects of needle-less injections:

The future of this technology is encouraging to establish virtually pain-free and highly productive drug delivery. The major defect combines with this technology is post-administration “wetness” of the skin which may, if not taken care of, harbor dust and other outward impurities.

The technology is being backed up by organizations such as the likes of the World Health Organization, Centers for Disease Control and Prevention and various groups including Bill and Melinda Gates Foundation. This technology is not only boosted to be favoring for the pharma industry but developing world too finds it highly useful in mass immunization programs, bypassing the chances of needle stick injuries and avoiding other complexities including those stemming due to multiple uses of a single needle.

References:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4675000/
https://newatlas.com/prime-painless-needleless-injection-device/52551/

This post was orginally published on: October 7, 2018 and was updated on: January 31, 2019.

Related Tags: Needle-free injections

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Avatar for Dr. Hafsa Akbar Ali

Dr. Hafsa Akbar Ali

Medical Writer & Health Professional

I have a MBBS from King Edward Medical University and did my clinical training at Pakistan’s Mayo Hospital, one of the most prestigious medical institutions in South Asia. My passion for medicine led me to pursue postgraduate training in the US as well, where I received an MD. My writing at TechEngage covers the latest advancements in medical technology.

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