Biopsy seal

Details Biopsy seal Biopsy seal

1986-01-02

1987-03-17

Truluck, Dalton L.

Surgery

Truss

Perineal

604167, 285331, A61B 100

Patent

active

046499040

ABSTRACT:
A disposable seal is provided for a luer lock end fitting, e.g. for a biopsy channel of an endoscope. The fitting has a tubular luer lock device and a retaining ring surrounding the tubular device. The seal is unitarily molded of a soft elastomer and has a double seal arrangement formed of an apertured end wall and a one-way-opening slitted plate or web behind the end wall. A distal end of the seal fits over the tubular luer lock device. This distal end has a radial cuff that seals against a flat transverse surface of the retaining ring and a frustoconic tapered protruding member which fits against a similar inner surface of the retaining ring to ensure that the cuff sealably engages the retaining ring under overpressure conditions. W

REFERENCES:
patent: 3512806 (1970-05-01), Romney et al.
patent: 4000739 (1977-01-01), Stevens
patent: 4240411 (1980-12-01), Hosono
patent: 4263897 (1981-04-01), Terayama
patent: 4424833 (1984-01-01), Spector et al.
patent: 4452473 (1984-06-01), Ruschke

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