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NEEDLE FREE
INJECTION
By
Kaushik Bandopadhyay
NSEC, BME
CLASSIFICATION
Needle free Injections can be classified
into two types based on their mechanism
of drug delivery:
1) Nano-Patch
2) Jet Pressure Needle free Injection
NANO-PATCH
The most modern form of drug delivery
through needle free system.
As the name suggests, this is a small
sized device having the size of a stamp
which has about 20,000 micro-projections
per square cm on its surface.
Needle free injection-ppt
Application Methods
Drug delivery through Nano-Patch is done in
two ways:
1) Sand paper aided delivery
2) Iontophoresis enabled delivery
Sand paper aided delivery
Mechanism of Operation
The micro-projections containing
drug/vaccine delivers the drug/vaccine into
the epidermis.
The epidermis is rich of Langerhans cells
which are members of our Immune
system
These cells move to the nearest Lymph
node and display the antigen to the T-cells
T-cells specifically recognizes one type of
antigen and creates a corresponding antibody.
Once this recognition procedure is completed the
antibodies will provide immediate protection and
these cells will protect from getting the same
disease twice. Thereby providing life term of
protection.
Needle free injection-ppt
Jet Pressured Needle free Injection
Devised in the year 2001 by The Medical
House and Bioject. This device has a
specialized nozzle through which the drug
is delivered.
A three component system comprising an
injection device, specially desgned nozzle
and air cartridge is present.
Needle free injection-ppt
Mechanism of Operation
Instead of creating a puncture on the skin
surface, this device forces the drug
through skin pores by the help of air
pressure, thereby effectively delivering the
drug without the help of needle.
Needle free injection-ppt
Advantages of using this
technology
 Painless procedure
 Relief to patients who have to be inoculated
many times in a day
 Efficient use of Vaccine
 Pandemic effective
 Zero contamination
 Better drug diffusion
 Zero disposal Hazard
 Ideal for developing countries
Popular Brands present
Internationally
 Biojectorr 2000
 Vitajet 3
 Cool click
 Serojet
 Iject
 Biovalves Miniject
Limitation of this technology
High pressure enabled delivery of drugs
by the Jet Pressured Needle free Injection
can damage fragile molecules beneath
our skin surface, especially the
Monoclonal antibodies.
Conclusion
Is the future Needle-free?
Developed countries have a Yes for this
question while from developing countries
the answer is not clear. Although this
technology is designed for such nations,
until a big pharmaceutical or
biotechnology company adopts it here, it
will continue to remain as a dream.
THANK YOU

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Needle free injection-ppt

  • 2. CLASSIFICATION Needle free Injections can be classified into two types based on their mechanism of drug delivery: 1) Nano-Patch 2) Jet Pressure Needle free Injection
  • 3. NANO-PATCH The most modern form of drug delivery through needle free system. As the name suggests, this is a small sized device having the size of a stamp which has about 20,000 micro-projections per square cm on its surface.
  • 5. Application Methods Drug delivery through Nano-Patch is done in two ways: 1) Sand paper aided delivery 2) Iontophoresis enabled delivery
  • 6. Sand paper aided delivery
  • 7. Mechanism of Operation The micro-projections containing drug/vaccine delivers the drug/vaccine into the epidermis. The epidermis is rich of Langerhans cells which are members of our Immune system These cells move to the nearest Lymph node and display the antigen to the T-cells
  • 8. T-cells specifically recognizes one type of antigen and creates a corresponding antibody. Once this recognition procedure is completed the antibodies will provide immediate protection and these cells will protect from getting the same disease twice. Thereby providing life term of protection.
  • 10. Jet Pressured Needle free Injection Devised in the year 2001 by The Medical House and Bioject. This device has a specialized nozzle through which the drug is delivered. A three component system comprising an injection device, specially desgned nozzle and air cartridge is present.
  • 12. Mechanism of Operation Instead of creating a puncture on the skin surface, this device forces the drug through skin pores by the help of air pressure, thereby effectively delivering the drug without the help of needle.
  • 14. Advantages of using this technology Painless procedure Relief to patients who have to be inoculated many times in a day Efficient use of Vaccine Pandemic effective Zero contamination Better drug diffusion Zero disposal Hazard Ideal for developing countries
  • 15. Popular Brands present Internationally Biojectorr 2000 Vitajet 3 Cool click Serojet Iject Biovalves Miniject
  • 16. Limitation of this technology High pressure enabled delivery of drugs by the Jet Pressured Needle free Injection can damage fragile molecules beneath our skin surface, especially the Monoclonal antibodies.
  • 17. Conclusion Is the future Needle-free? Developed countries have a Yes for this question while from developing countries the answer is not clear. Although this technology is designed for such nations, until a big pharmaceutical or biotechnology company adopts it here, it will continue to remain as a dream.