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Medical Forum / General / General / February 2004Tapered syringe
I'm looking for a 5 -10 cc syringe that has a highly tapered plunger. The plungers on most syringes is only slightly angled (nearly 90 degrees). I would like to find something that is angled quite a bit more. I am aware of the tapered tips that can be added to syringes, and they certainly help, but a tapered plunger would be better yet. I am trying to expel a water/solid slurry (similar to unset concrete), and so reducing/eliminating that 90 bend at the end of the syringe will greatly increase the amount of material that I can get out, and also reduce the required pressure. A Luer-Lock end would also be helpful. John > I'm looking for a 5 -10 cc syringe that has a highly tapered plunger. > The plungers on most syringes is only slightly angled (nearly 90 [quoted text clipped - 9 lines] > > A Luer-Lock end would also be helpful. Is the device to be used as a manufacturing aid or as part of a product? Is it possible for you to use something other than a syringe? I used to work at a company that made syringes and everything I've seen so far had pretty much the same style tip. If this is a manufacturing aid you might want to look into automatic dispensers and if it's part of a finished product I'd suggest looking into bone cement dispensers. I've checked out some of your past posts though and I have a feeling you'd already considered these things if they were viable. Good luck! You might also look into dental lab impression materials dispensers. > > I'm looking for a 5 -10 cc syringe that has a highly tapered plunger. > > The plungers on most syringes is only slightly angled (nearly 90 [quoted text clipped - 23 lines] > > Good luck! John, I am having trouble picturing this ~ most plungers are 180 degrees ~ that is, in-line with the barrel ,,,,,, ,what am I missing here? Wait! You mean like a funnel plunger as in a cake decorating thinggie ,,,,, right? JOEL >I'm looking for a 5 -10 cc syringe that has a highly tapered plunger. >The plungers on most syringes is only slightly angled (nearly 90 [quoted text clipped - 11 lines] > >John  SignatureJoel M. Eichen, . Philadelphia PA DISCLAIMER FOLLOWS: ********* Dental health-related material is provided for information purposes only and does not necessarily represent endorsement by or an official position of the SciMedDentistry gang or any other official agency either actual or fictitious or Steve Mancuso. Advice on the treatment or care of an individual patient should be obtained through consultation with a dentist who has examined that patient or is familiar with that patient's dental history. STANDARD DISCLAIMER > John, > > I am having trouble picturing this ~ most plungers are 180 degrees ~ > that is, in-line with the barrel ,,,,,, ,what am I missing here? That, under your scheme, the stuff comes back at ya. > Wait! You mean like a funnel plunger as in a cake decorating thinggie > ,,,,, right? Also a rectilinear device...simple piston and outlet... like a calking whachamacallit (can't say "gun" under the "new rules") > JOEL [snip...] For a "retired" practitioner (I did not say "dentist"), your sig apparently is proportional to your ego :-) Mark (Should we ask what the original poster's purpose is?) Now I have to check my sig .... I forgot what it is ....... >> John, >> [quoted text clipped - 17 lines] > > Mark (Should we ask what the original poster's purpose is?) SignatureJoel M. Eichen, . Philadelphia PA DISCLAIMER FOLLOWS: ********* Dental health-related material is provided for information purposes only and does not necessarily represent endorsement by or an official position of the SciMedDentistry gang or any other official agency either actual or fictitious or Steve Mancuso. Advice on the treatment or care of an individual patient should be obtained through consultation with a dentist who has examined that patient or is familiar with that patient's dental history. STANDARD DISCLAIMER >> John, >> [quoted text clipped - 15 lines] >For a "retired" practitioner (I did not say "dentist"), >your sig apparently is proportional to your ego :-) REPLY Hey Mark! I missed that. I use a pretty standard disclaimer, no? By the way, its necessary because of the fact that some people who read what I write are not in Pennsylvania, the only state where I am currently licensed. JOEL > Mark (Should we ask what the original poster's purpose is?) SignatureJoel M. Eichen, . Philadelphia PA DISCLAIMER FOLLOWS: ********* Dental health-related material is provided for information purposes only and does not necessarily represent endorsement by or an official position of the SciMedDentistry gang or any other official agency either actual or fictitious or Steve Mancuso. Advice on the treatment or care of an individual patient should be obtained through consultation with a dentist who has examined that patient or is familiar with that patient's dental history. STANDARD DISCLAIMER > >> John, > >> [quoted text clipped - 27 lines] > > JOEL Hey. Thanks for not top-posting. Much easier to comprehendito. I probably should get my lawyers to put together a disclaimer for me. So far, all I have is my shield of invincibility to protect me: WELCOME TO THE PSYCHIATRIC HOTLINE If you are obsessive-compulsive, please press 1 repeatedly. If you are co-dependent, please ask someone to press 2. If you have multiple personalities, please press 3, 4, 5, and 6. If you are paranoid-delusional, we know who you are and what you want. Just stay on the line so we can trace the call. If you are schizophrenic, listen carefully and a little voice will tell you which number to press. If you are manic-depressive, it doesn't matter which number you press; no one will answer. If you are delusional and occasionally hallucinate, please be aware that the thing you are holding on the side of your head is alive and about to bite off your ear. Maybe I should start out by saying, just because I post in sci.chem doesn't mean I know anything about chemistry. Naw...I have servants that can do that :-) Mark >I'm looking for a 5 -10 cc syringe that has a highly tapered plunger. >The plungers on most syringes is only slightly angled (nearly 90 >degrees). I would like to find something that is angled quite a bit >more. Have you looked at the disposable medical plastic syringes?. The different manufacturers seem to have some variations of taper and most have luer lock needle connections. The 5ml ones we use have a plunger that has a 90 degree tip ( <=== ) with mating body end, and anything with a smaller angle may be likely to result in material breaking the plunger/wall seal. Bruce Hamilton |
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