Aspiration Adapter for IM Injections

thingiverse

This is a simple adapter that easily fits onto a BD 3 ml syringe, allowing users to pull the plunger back before injecting (also known as "aspirating"). Many doctors highly recommend this practice, but it can be challenging to do, especially when self-injecting and your other hand is busy with tasks like tracking.\nAspirating proves useful in verifying that you are not injecting directly into a blood vessel, although there's ongoing debate about whether aspirating is effective, and exactly how to perform the technique correctly. It's essential to follow your doctor's guidance, and ask if a gadget like this would be beneficial for your specific situation.\nFor what it's worth, my doctor had an amused expression when I showed her the adapter, but she confirmed that using it was acceptable if desired. She didn't award me a Nobel Prize in medicine, however, nor did she imply anything of that sort, possibly because she was too busy.\nImprovements:\nI should have chamfered at least the lower corners, so they won't obstruct the fingers holding the barrel.\nIt would be preferable to have a more secure locking mechanism for the plunger disc instead of relying on friction alone. However, I struggled finding something suitable that could be printed with precision.\nThis design could accommodate a broader range of syringes if adjusted.\nThe current setup is somewhat cumbersome when removing the adapter before dropping the needle in the sharps bin; an easier way to attach and detach would greatly improve usability.\nDisclaimer:\nI am not a doctor, even though I might know something relevant to medical professionals, I'm just expressing my views on general matters. Do not take any particular medication or follow specific practices solely based on my input. Only qualified healthcare experts can provide advice tailored to your unique situation. Use caution when handling this device; do not attempt it if the action is illegal where you reside. Do not self-medicate unless instructed by a trained doctor. When operating electrical equipment, ensure proper precautions are in place. Children should never be allowed near needles, and children deserve care and guidance at home - calling your mom can make all the difference.\nPrint Settings\nPrinter: Printrbot Simple Black\nRafts: None\nSupports: None\nResolution: 0.3 mm\nInfill: 10% rectilinear\nNotes:\nThe project originated on an outdated but functional plywood kit that included fishing line and dremel sanding drums for smooth operation in the x/y direction. Due to its mechanical shortcomings, a narrower slot may be required on newer printers (where the plunger snaps into place).\nDesign Details\nCreated with FreeCad software.\nUploading FreeCad projects can streamline modifications and make it easier for users to contribute.