Injection configuration with modified Luer connector for reduced dead space
An injection configuration ( 10 ) for connection to a male Luer connector ( 100 ) includes a hub ( 12 ) having an internal conical taper ( 14 ) in fluid interconnection with a hollow needle ( 16 ). The internal conical taper has a convergence angle of 6% and a length L of 7.5-10.5 millimeters, and presents an entrance aperture diameter D of between 4.365 and 4.595 millimeters.
1. An injection configuration for connection to a male Luer connector, the injection configuration comprising:
(a) a hub having an internal conical taper having a convergence angle of 6% and a length L of 7.5-10.5 millimeters; and
(b) at least one hollow needle configuration in fluid interconnection with said internal conical taper,
wherein said internal conical taper has an entrance aperture diameter D of between 4.365 and 4.595 millimeters, thereby deviating from ISO Standard 80369 for the entrance aperture diameter of a female Luer connector.
2. The injection configuration of claim 1 , wherein said internal conical taper has an entrance aperture diameter D=L*6%+3.940±0.025 millimeters.
3. The injection configuration of claim 1 , wherein said at least one hollow needle configuration comprises at least one hollow silicon microneedle.
4. The injection configuration of claim 1 , wherein said at least one hollow needle configuration comprises a plurality of hollow silicon microneedles projecting from a major surface of a silicon substrate.
5. The injection configuration of claim 1 , wherein said at least one hollow needle configuration comprises a steel needle.