I made this IV practice arm one day for EMT school. It worked quite well and sorry for the poor quality video.
Step 1: Medical IV Practice Arm
I did my EMT-I last year and for my presentation / project I decided I would make an IV practice arm. For those who've never heard of this, it is simply a fake arm with fake blood flowing through that will allows one to practice inserting an IV. Normally one would have to buy them and they're a little pricey.
I also figured no one else had done anything like this at my school and was right. Usually they did the balloons and diaphragm to represent the process of breathing. My instructor seemed to like it and asked if she could keep the arm. So I had not taken many pictures because I thought I would be keeping the arm, since she took it, I couldn't take any more.
Nevertheless, I think I can show what I did though you'll have to excuse the pictures as I took them off the Youtube video.
Step 2: Needed
* Duct tape
* Plastic bags
* 1 Rubber glove
* Fish tank tubing (Veins)
* 2 Tubing connectors
* Food sealer bags (Fluid bags)
* Shoe Goo
* Cling Film / Plastic Wrap (wrap the arm before the duct tape)
* Water with red food colouring
* Clear silicon sealer (About 2 tubes)
Step 3: Duct Tape Arm
I started by wrapping my arm in duct tape after first wrapping it with cling film / plastic wrap. I then had my wife cut it off. I made it a little bit too tight, thinking I would get more of the shape, but it didn't really matter in the end and my wife ended up giving me little cuts akin to paper cuts up my arm. Not her fault of course, just a warning about making it too tight.
Step 4: Gloved Hand
To make a hand, I duct taped a rubber glove stuffed with newspaper on the end. I then wrapped it with duct tape as best I could.
Step 5: Plastic Bag Stuffing
I then filled the arm with balled up plastic bags, pressing down enough to get a good fill. Once at the shoulder area, I taped it closed with duct tape. Sorry I didn't have a shot of this.
Step 6: Veins!
For the "veins" I used fish tank tubing that I taped down in various areas. I wrapped the bottom end around some of the fingers and brought it back up. This gave one continious tube for the blood to flow. I inserted a "three-way" valve at the shoulder end to connect the fluid bags.
Step 7: Fluid Bags
There are two bags for the fluid. To get the blood flowing you need to have the bag that's filled with blood higher than the empty bag. This forces the fluid through the veins and into the empty bag.
For the IV fluid bags themselves, I used food sealer bags and connected a length of fish tank tubing using Shoe Goo with both ends of the bag sealed. I made a small cut into the "bottom" end and inserted the tube and goo'd it up.
Step 8: The Blood
For the blood I mixed red food colouring in water. This was poured into the hole of the IV bag before the tube was glued into place.
Step 9: Silicon Skin
To get "skin" to insert an IV needle through, I used silicon sealer that actually worked out quite well. I think two tubes were used with just a little left over in the last tube. This was a little tricky, but I would squeeze some out onto the duct tape in between the "veins" and using a plastic knife dipped into water often, I was able to smear it in between and over the tubing.
Step 10: Final Result
I inserted an IV needle into the arm and got flash back. What I was hoping for was the silicon closing the whole and preventing the blood from leaking out. It did.
I was a little excited in this video; it worked! *lol* Sorry the video doesn't show enough, but you'll get the idea. The "IV Bags" were not high enough during the video for blood to be moving through the arm; the veins were simply primed with the blood. I lift it up here and there to show the flashback and blood flow through the catheter. Normally the full bag would be placed high and blood would flow through the arm into the empty (lower) bag.
Step 11: Improvements
If I do this again I think I'll try to thin the silicon out a bit; maybe with some sort of alcohol. It will make it easier to spread and I believe the alcohol will evaporate and I'd be left with a smoother.
I would also glue the IV tubing down instead of using using tape. Just looks better.
The hand would also need some work, although, not sure exactly how to make it look more like a hand. I would also like to see a tube going up the thumb as this is another area IV's can be placed.
Another idea is to look closer at the layout of actual veins and try to mimic the placement as much as possible. I didn't do this in this project as I didn't have a lot of time to get it done.