Faulty Design Created Inherent Risk – Part 2

Jet Injectors = Jet Infectors

January 17, 2016

“Where is the proof?” you may question. Glad you asked.

Splash-Back was Inevitable
Samir Mitragotri, a chemical engineer at the University of California, visually captured the discharge of multiple-use nozzle jet injectors using high-speed microcinematography (Mitragotri, 2006). The photos in the following link demonstrate a close-up look at the jet injection process. Most importantly, notice in the images when the high velocity stream penetrates the skin there is extensive splash back.

Have a closer look (pun intended).

“The black region at the top of each image shows the outline of a jet injector with the protrusion in the centre showing the position of the nozzle,” said Mitragotri. “The black region at the bottom shows the outline of human skin.” The white space between the two black regions is a gap, approximately a few millimeters wide between the jet injector and human skin.

In the photo where the time equals 0, the jet injector has been activated.

By the time of 40 μs (i.e., Microsecond) the jet stream appears from the orifice and by 160 μs the jet stream makes initial contact with the skin. For reference purposes one microsecond equates to one millionth of a second.

From 280 μs to 1 ms (i.e., Millisecond) the penetration of the jet stream caused excessive splash back. Mitragotri stated, “The typical volume of the liquid splashed in the image at 400 μs is around 100 nl [i.e., Nanoliter] (Mitragotri, 2006).

The deposition of the liquid medicament between 2 to 5 milliseconds (ms) causes a wheal, or rather a bulge under the skin. This wheal will diminish over time as the ejected fluid absorbs into surrounding tissues.

Mitragotri’s photographic evidence leaves no dispute, during the natural injection process that was intended by the manufacturer, the nozzle frequently became contaminated. Thus, the jet injector became unsterile and therefore unsafe. Moreover, this evidence corroborates the testimonies of veterans who visually saw blood on the nozzle of the jet injector during their military mass vaccination campaigns.

Faulty Design Created Inherent Risk – Part 3

References:

  • (Mitragotri, 2006) Mitragotri S. Current status and future prospects of needle-free liquid jet injectors. Nature Reviews Drug Discovery 5:543–548, 2006.

Copyright Notice
© Shaun Brown and Jet Infectors, 2017. Veterans are encouraged to use these documents as evidence within their VA claims. Any other use and/or duplication of this material without express and written permission from this site’s author and/or owner is strictly prohibited. Excerpts and links may be used, provided that full and clear credit is given to Shaun Brown and Jet Infectors with appropriate and specific direction to the original content.

Fair Use Notice
In accordance with the Fair Use Law (17 U.S.C. § 107), copyrighted sources cited within this website are distributed without profit and are presented for educational, research, and in some cases critical analysis purposes. For these reasons authorization from the copyrighted holders has not been obtained. If you wish to use the copyrighted material for purposes that go beyond the Fair Use Law 17 U.S.C. § 107, you must obtain permission from the copyright owner.


Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s