Combination stopper for use in medical and chemical sampling or

Surgery – Respiratory method or device – Ozone or ion generation

Patent

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Details

128218R, 215355, 215DIG3, A61M 500

Patent

active

041989740

ABSTRACT:
There is disclosed herein a combination stopper for effecting an air-tight seal with the barrel of a syringe to protect the contents from contamination. The stopper is adapted for use with either the luer tip or a needle attached to the end of the syringe barrel. The stopper includes an elongated frustoconically-shaped main body portion having oppositely disposed end walls, and the end wall at the large-diameter end of the main body portion has a generally planar and continuous surface. An elongated frustoconically-shaped luer-receiving nipple is integrally formed with and extends from the small-diameter end wall of the main body portion, with the free end of the nipple being inwardly recessed. The luer-receiving nipple is shaped, sized and constructed to receive and seal the syringe luer tip. The stopper is formed of an elastomeric material having a durometer hardness of approximately 80 so as to provide an air-tight seal when the main body portion thereof is pierced by the syringe needle or when the luer-receiving needle is friction fit with the luer tip.

REFERENCES:
patent: 2722257 (1955-11-01), Lockhart
patent: 2812763 (1957-11-01), Ferguson
patent: 2902995 (1959-09-01), Loper
patent: 3087638 (1963-04-01), Loper
patent: 3181529 (1965-05-01), Wilburn
patent: 3344786 (1967-10-01), Berg et al.
patent: 3405712 (1968-10-01), Pierick
patent: 3734079 (1973-05-01), Weber
patent: 3948261 (1976-04-01), Steiner

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