초록 ▼

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 apertu

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.

대표청구항 ▼

A biopsy seal for sealably covering a luer lock type fitting which fitting includes a tubular hollow stem and a pair of radial retaining flanges at a free end thereof, the seal permitting insertion of an elongated instrument of generally circular cross-section therethrough and through the stem of sa

A biopsy seal for sealably covering a luer lock type fitting which fitting includes a tubular hollow stem and a pair of radial retaining flanges at a free end thereof, the seal permitting insertion of an elongated instrument of generally circular cross-section therethrough and through the stem of said fitting, the biopsy seal being formed of a generally tubular body of an elastomeric material and comprising a proximal sealing portion, a distal seating portion, and a medial portion connecting said distal and proximal portions; said proximal sealing portion including an outer transverse wall having a central opening therein and a transverse sealing plate disposed within said body behind said outer transverse wall, said wall and plate defining a generally disc-shaped cavity therebetween, and said transverse plate having a slit across it and being yieldable to open for insertion of said elongated instrument through said opening and said slit in the direction toward the distal end of the biopsy seal and remaining closed when said instrument is not inserted therethrough, said transverse wall sealing against the side of the circular cross-section instrument when the same is inserted through said opening; said distal seating portion including a cylindrical passage for receiving the stem of said fitting; and said medial portion including means for engaging the radial retaining flanges of said fitting.