Sealing stopper for a syringe and a prefilled syringe

Details Sealing stopper for a syringe and a prefilled syringe Sealing stopper for a syringe and a prefilled syringe

1998-05-20

2000-07-18

Yasko, John D.

Surgery

Means for introducing or removing material from body for...

Treating material introduced into or removed from body...

604218, A61M 5315

Patent

active

060900814

ABSTRACT:
There can be provided a sealing stopper for a syringe, having very high sealing property and sliding property, and a prefilled syringe using this sealing stopper and capable of preserving a medicament for a long time and operating in easy and precise manner during injecting. This syringe is also excellent in sanitary and operating property during a step of formulation or preservation of a medicament. In this sealing stopper for a syringe, a surface of the rubber body is laminated with a tetrafluoroethylene resin film or ultra-high molecular weight polyethylene film having an average roughness Ra on the central line of the surface in a range of at most 0.05 .mu.m and a kinematic friction coefficient of at most 0.2.

REFERENCES:
patent: 4554125 (1985-11-01), Knapp
patent: 4633765 (1987-01-01), Knodel
patent: 4997423 (1991-03-01), Okuda et al.
patent: 5194335 (1993-03-01), Effenberger et al.
patent: 5527580 (1996-06-01), Ikeda et al.
patent: 5639851 (1997-06-01), Bezwada et al.
patent: 5951527 (1999-09-01), Sudo
Cf. "Plastic No Jiten (Plastic Dictionary)", pp. 836-838, published by Asakura Shoten, Mar. 1, 1992.
Japanese Pharmacopoeia Thirteenth Edition, pp. 9-27.

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