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05-03-22 07:20:17 AM
Jul - News - Medical injections, now without needles New poll - New thread - New reply
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Rena
I had one (1) message in Discord deleted and proceeded to make a huge, huge mess about how it was a violation of free speech and how moderators are supposed to be spam janitors and nobody should have the right to tell me not to talk about school shootings
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Posted on 05-27-12 07:13:03 AM Link | Quote
Post #4796 Β· Sun 120527 031303
Well, not now, but soon...

MIT Builds A Needle-Free Drug Injector

by Ted Burnham

The needle and syringe are icons of modern medicine.

But a device developed at MIT to squirt medicines quickly and pretty much painlessly through the skin suggests that the future of medicine could be needle-free.

The idea is to shoot an extremely thin, extremely fast jet of medicine straight through skin and into muscle. "It's sort of like a laser beam," project leader and mechanical engineering professor Ian Hunter tells Shots.

But because the jet is so thin β€” he compares it to a mosquito's proboscis β€” it's unlikely to produce much pain. Details of the prototype are published in the journal Medical Engineering and Physics.

Needles, as we all know, can be quite painful, and it's estimated that at least 10 percent of the population has needle phobia. There's also the risk of accidental jabs, which can spread disease. Jet injections could avoid these problems.

Jet injection technology has been around for quite a while. It's been used in mechanical devices for more than a century (think of a car's fuel injector), and was first used to deliver vaccines in the 1960s. The technology even showed up on Star Trek as "hypospray." Nor is it the only needle-free alternative in the works for vaccines and other medicines.

But Hunter says this device has big advantages, thanks to some 21st-century technology.

Existing medical jet injectors use a spring or other mechanical method to force liquid out. All the medicine comes rushing out at once, at a fixed speed and pressure. It gets the job done, but it's not very precise. The diameter of the jets also tends to be several times bigger than those from Hunter's device, causing more pain and raising the risk of infection.

Hunter's injector uses a piston made from a coil of wire wrapped around a magnet. A computer chip calls the shots for the injection, so to speak, allowing for millisecond-by-millisecond control over the speed and pressure of the jet.

Once the skin is penetrated with a quick burst, the injector can back off a bit to deliver a precise quantity of the drug, exactly where it's needed.

"I think that's the big difference between this device and other devices, is the degree of precision," Hunter says. "We have a degree of control that hasn't been possible before."

The new injector has yet to be tested on people, but has been used on animals, like sheep, without apparent discomfort. "The sheep did not seem to even be aware that they were being injected," Hunter says. But it will be a few years yet before the injector could be ready for use at home or in a hospital near you.

In the meantime, Hunter's team will work on additional features that take advantage of the injector's built-in computer. They want to combine it with a separate device that can sense the thickness and elasticity of the patient's skin, so the injector could adjust its speed and pressure accordingly. It could also tell the difference between the patient's skin and that of the health care worker, to prevent accidental self-injections.

(the article also has an embedded video that might be interesting)

Any technology that eliminates the pain and risk of medical injections gets a from me.

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sofi

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Posted on 05-27-12 12:28:43 PM Link | Quote
That is so amazing. I'm not afraid of needles or their pain in the slightest but I totally approve.

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Posted on 05-27-12 01:35:37 PM (last edited by dotMewser at 05-27-12 01:36:08 PM) Link | Quote
Considering I am afraid of needles, this is a welcome idea. However, it'd not change much for me. As most of the times I've had to be injected it's been a drug that can only be used via IV. Or because they were taking blood samples. I also never get basic injections needed for flu or whatever virus stuff.

Still, a very good thing!

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Posted on 05-27-12 03:42:03 PM Link | Quote
Injections without needles or pain? Now that's awesome.



And score another one for Gene Roddenberry.

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Posted on 05-28-12 02:25:28 AM Link | Quote
Paulguy's Post configuration
Needles aren't a thing for me, but this is still a neat idea.

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Posted on 05-29-12 02:07:10 PM (last edited by Viola at 05-29-12 02:07:27 PM) Link | Quote
This device will of course assist in preventing the spread of AIDS.

Thus, someone will condemn it.

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Posted on 05-29-12 11:45:19 PM Link | Quote
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Posted on 05-29-12 11:55:36 PM Link | Quote
needles fuck with my head something fierce.

this can't come soon enough

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Posted on 06-02-12 06:49:58 PM Link | Quote
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I wish they could do something about blood sampling; my arms are so thin they really have to dig to find a vein, and that hurts much more than any vaccine needle prick.

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Posted on 06-02-12 07:25:01 PM Link | Quote
I haven't been afraid of needles since I started donating plasma, which unfortunately, probably wouldn't be possible with this device, but I still find the idea a welcome one.

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Posted on 06-02-12 07:28:38 PM Link | Quote
I haven't been afraid of needles since grade 3. When I was 9. I had blood work done..

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Posted on 06-04-12 03:27:01 AM Link | Quote
Lethal Injections, now without needles...

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Rena
I had one (1) message in Discord deleted and proceeded to make a huge, huge mess about how it was a violation of free speech and how moderators are supposed to be spam janitors and nobody should have the right to tell me not to talk about school shootings
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Posted on 06-05-12 02:39:21 AM Link | Quote
Post #4815 Β· Mon 120604 223921
Fun fact: needles are sterilized before giving a lethal injection. Just in case they call it off just before giving the final, actual lethal shot (there are three separate injections involved), the guy gets set free, gets sick from an infection from the needle, and sues.

America.

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Posted on 06-05-12 02:41:00 AM Link | Quote
Originally posted by Rena
Fun fact: needles are sterilized before giving a lethal injection. Just in case they call it off just before giving the final, actual lethal shot (there are three separate injections involved), the guy gets set free, gets sick from an infection from the needle, and sues.

America.

To be fair, that totally sounds like a legitimate grounds for a lawsuit to me.

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Posted on 06-06-12 01:54:31 AM Link | Quote
Originally posted by Nicole
Originally posted by Rena
Fun fact: needles are sterilized before giving a lethal injection. Just in case they call it off just before giving the final, actual lethal shot (there are three separate injections involved), the guy gets set free, gets sick from an infection from the needle, and sues.

America.

To be fair, that totally sounds like a legitimate grounds for a lawsuit to me.


Sounds fair enough.

I mean the person could sue for wrongful imprisonment, but at least getting two injections from sterilized needles won't end up being harmful.

Though that seems like a wildly improbable situation.

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