A - Human Necessities – 61 – M
Patent
A - Human Necessities
61
M
A61M 5/34 (2006.01) C09J 163/00 (2006.01)
Patent
CA 2610562
By inhibiting the occurrence of foreign matters caused by an adhesive to be used between a syringe and a needle base member, the yield of producing syringes is elevated. A front assembly (3) to attached to the front edge of a syringe barrel (2) which is provided with a syringe needle (4), a needle base member (5), a connection hub (6) and a cap (7). The syringe needle (4) is fixed to the needle base member (5) with an epoxy-based adhesive (19). The amount of a denatured aliphatic epoxy resin contained in this adhesive (19) is controlled to about 10 to about 25% by weight and the viscosity of the adhesive is controlled to about 20000 to about 40000 mPa~s. This adhesive (19) is hardened by heating at about 130oC or higher for about 20 minutes. After sterilizing the front assembly (3) and the syringe barrel (2) with steam, the connecting member (17) of the connection hub (6) is put on the front edge of the syringe barrel (2) and fixed thereto.
Selon la présente invention, en inhibant l~occurrence de matières étrangères provenant d~un adhésif devant être utilisé entre une seringue et un élément de base d~aiguille, le rendement de production de seringues est élevé. La présente invention concerne un ensemble avant (3) devant être fixé au bord avant d~un corps de seringue (2) qui est muni d~une aiguille de seringue (4), un élément de base d~aiguille (5), un raccord (6) et un capuchon (7). L~aiguille de seringue (4) est fixée à l~élément de base d~aiguille (5) à l~aide d~un adhésif à base d~époxy (19). La quantité d~une résine époxy aliphatique dénaturée contenue dans cet adhésif (19) est contrôlée entre environ 10 à environ 25 % en poids et la viscosité de l~adhésif est contrôlée entre environ 20 000 et environ 40 000 mPa·s. Ledit adhésif (19) est durci par chauffage à environ 130 °C ou plus pendant environ 20 minutes. Après la stérilisation de l~ensemble avant (3) et du corps de seringue (2) avec de la vapeur, l~élément de raccord (17) du raccord (6) est placé sur le bord avant du corps de seringue (2) et y est fixé.
Kato Masahiko
Kishimoto Jotaro
Sakurai Yuusuke
Yoshikawa Hiroshi
Fetherstonhaugh & Co.
Takeda Pharmaceutical Company Limited
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