Katsutoshi Kurose Phones & Addresses
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Bear, DE
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Elkton, MD
Publications
Us Patents
Syringe Assembly
View pageUS Patent:
56349033, Jun 3, 1997
Filed:
Jul 8, 1994
Appl. No.:
8/271998
Inventors:
Katsutoshi Kurose - Bear DE
Masaru Saiki - Kofu, JP
Masaru Saiki - Kofu, JP
Assignee:
Terumo Kabushiki Kaisha - Tokyo
International Classification:
A61M 500
US Classification:
604110
Abstract:
A syringe assembly includes a syringe body, and a plunger having a main body and a gasket mounted on its distal end portion. A needle-mounting member is detachably mounted on a distal end portion of the plunger main body. A plunger-engaging mechanism is provided on the needle-mounting member. An engaging member is provided on a distal end of the gasket, for engaging with the plunger-engaging mechanism. The needle-mounting member and the plunger further have a first structure which transmits a torque from the plunger in a direction to release an engagement between the syringe main body and the needle-mounting member to the needle-mounting member, and a second structure which releases an engagement between the engaging member and the plunger-engaging mechanism through a rotation of the plunger in a direction to keep an engagement between the needle-mounting member and the plunger main body.