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Training Nurses With Virtual Veins
meganthom writes "UK Haptics is developing a virtual hand to help nurses learn how to draw blood and put in IVs in a realistic manner. Though plastic models are currently used, these do not give new nurses the 'feel' for how much pressure to apply to the needle, and they cannot alert the nurse about pain. The system currently under development, which uses haptics, would make the learning experience considerably more realistic, even telling the nurse when too much pressure was applied."
He's not aiming for veins (which would be pretty pointless anyway, since they take blood back to the heart, not out to the cells locally) he's distributing the anesthetic around the area to assure the nerves are blocked. It's a subcutaneous injection (or intramuscular or intraligament - my dentist sometimes uses "intralig" injections on me), not intravenous or arterial.
Did he apply a topical before the injection? That usually helps a bit.
As a retired paramedic who has stuck needles into literally thousands of veins, I can tell you that this kind of tool is of limited value. Even if they can exactly mimic the tactile sensations of a needle penetrating skin and then entering a vein, that's only part of the issue. A much bigger obstacle to be overcome is the social indoctrination that you don't go around stabbing people and making them bleed. Once most nursing/medical/paramedic students learn to just DO IT, their problems drop way off.
The traditional training method of having students practice on each other has a lot to reccommend it as a means of overcoming such reluctance. Anyway, a practice model would only get used in class a few times per student, and then they will be out assaulting real patients anyway. Increased training costs for limited benefit.
I'm not sure if she was nervous
She was probably nervous, which made her a shaker.
Most nursing and medical students will tell you that learning how to insert a needle is very stressful. Veins can be hard to find on most people (especially overweight people), it is usually taught towards the beginning of your training and is required for many tasks later on, you have a very attentive audience-- any mistake will certainly be noticed by the patient or the doctor, and nobody likes needles.
My wife is a labor and delivery nurse. Imagine having to learn how to insert a needle into brand newm, wiggly newborn with teeny-teeny veins.
"Can of worms? The can is open... the worms are everywhere."
Prior to the operation, local anesthetic was of course applied on the nasal wall. Incidentally, this last procedure was also conducted with a damn long needle shoved straight up my nose and it hurt like hell each time they did it. Yes, each time they did it. A trainee tried to do it four times until his supervisor finally took over and applied it successfully.
Fortunately the actual puncturing of the nasal wall was unpleasant (lots of cracking and crunching sounds when the needle is pushed up your nose) but completely painless.
The owls are not what they seem
by HT Medical (now Immersion Corporation) and Plattsburgh State University?
I don't give blood anymore for this reason. I had a bad experience a few years ago with a new nurse who put the needle through the blood vessel in my arm, and into the nerve in my elbow. It took 6 months before my hand felt normal and regained full strength after that. I've read plenty of tales of folks who didn't regain full feeling after an experience like that, and don't want to take the risk of it ever happening again.
If these things can help them learn to take blood without injuring folks like me, I'm all for it. I still probably won't ever give blood again, but if this became commonplace and I was assured of a really well-trained nurse, I *might* consider it..
Hey, how about giving us laypersons a definition of haptic before you toss such jargon around willy-nilly? According to Merriam-Webster it means:
relating to or based on the sense of touch
-Rich
As for a needle in the artery, that's no big deal (as the nurse above stated). We do that all the time routinely (as a test, not accidentally) either with a needle for an arterial-blood-gas sampling or an IV for an arterial line (for blood pressure monitoring in the ICU). As was stated above, you simply hold pressure.
As for all the people who complain about trainees, half the problem is the patient who makes the trainee even more nervous than they already are. In fact I can't tell you how many patients seem to want to try and psych me out, while drawing blood (and I'm experienced) "you'll never get blood from me.. Oh, you'll never get blood the way you do it...." as I have a needle 2 inches from their arm... If you do this to a student, they'll get shaky (albeit this does make you "right", but you also have holes in your body); I just ignore them and get the blood anyway (which is 3/4 of the secret to success).
Every vein in every patient is different, and techniques that work in 1 may not work in another patient. I have seen senior phlebotomists miss and cause large hematomas, and I have seen the medical student get the vein afterwards; part of it is luck, patient positioning, etc...
And for all the lay-people who are thinking it is so easy (i.e. "I can't believe they screwed it up"), any time you want to come down to my hospital and try drawing blood on an 80 year old diabetic on dialysis, a heroin/cocaine addict, dehydrated nursing home patients, etc...