A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 39/10 (2006.01) A61M 5/178 (2006.01)
Patent
CA 2610534
A luer-lock type cylindrical tip of a syringe has a luer tip of which a center portion is fitted with an injection needle and a-luer-lock portion which is disposed outside the luer tip with a gap therebetween and which has a lock screw disposed therein. The lock screw is formed as a trapezoid screw having a root diameter set to the range of 8.0 mm ~ 0.1 mm, an inner diameter set to the range greater than or equal to 6.6 mm and smaller than 6.8 mm, and a pitch set to the range greater than 2.5 mm and smaller than or equal to 2.8 mm. Accordingly, it is possible to reliably prevent the injection needle from being loosened or pulled out in the handling process. It is also possible to easily replace the syringe needle with another one having different size at the time of use.
Shimazaki Seiji
Takeshima Yasuhiko
Arte Corporation
Sim & Mcburney
LandOfFree
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