Syringe Design
Syringe Design
(OP)
I'm trying to find the minimum and maximum allowable length of a .5ml syringe. The requirement states: The length of the barrel and the design of the re-use prevention feature shall be such that the syringe has a recommended maximum usable capacity of at least 5 % more than the nominal capacity and a recommended maximum capacity of 20 % more that the nominal capacity. How would you calculate the minimum and maximum allowable lengths?





RE: Syringe Design
Then I would use math.
RE: Syringe Design
TTFN
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RE: Syringe Design
RE: Syringe Design
TTFN
I can do absolutely anything. I'm an expert!
homework forum: //www.engineering.com/AskForum/aff/32.aspx
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers
RE: Syringe Design
Fun story - a coworker was mentoring some kid's business group; they made sand/soap/water desk toys with wood frames. At some point I asked how they were getting the liquid in and he said they used hypos. I mentioned that fishing supplies sold worm floaters - bottles with needles to inflate worms to keep them from sinking to the bottom. Poor worms. He laughed it off as the hypos worked fine. 6 months later he thanked me for the worm-float idea. Some parents were concerned about handing teenagers hypodermic needles, but worm floaters were OK.
Still, the original post sounds like home work. Mint Julep's answer was priceless.
RE: Syringe Design
Mike Halloran
Pembroke Pines, FL, USA
RE: Syringe Design
RE: Syringe Design
> The length might be dictated by the legibility of the gradation markings
> Your ability to control the dispense percentage amount/rate would be determined by the length of the barrel
TTFN
I can do absolutely anything. I'm an expert!
homework forum: //www.engineering.com/AskForum/aff/32.aspx
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers
RE: Syringe Design
TTFN
I can do absolutely anything. I'm an expert!
homework forum: //www.engineering.com/AskForum/aff/32.aspx
FAQ731-376: Eng-Tips.com Forum Policies forum1529: Translation Assistance for Engineers