Leak prevention fitting for infusion set

Surgery – Means for introducing or removing material from body for... – Treating material introduced into or removed from body...

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Details

604248, 604256, A61M 2500

Patent

active

058975381

ABSTRACT:
An improved infusion set of the type including a length of flexible tubing with a hollow needle or catheter projecting from a first end and a connection fitting attached to a second. The fitting is a hollow generally "Y"-shaped tubular body with a first opening connected to the first end of the tubing. Second opening and the third openings, communicating through an orifice, accept a standard tapered fitting. The improvement includes a valving element formed as a standard tapered fitting removably and rotatably fitted to the second opening. The valving element permits or blocks communication between the third opening and the first opening and may removably seal the second opening. The valving element includes a tapered tube with a narrower first end, a wider second end, an inner surface and an outer surface and a transverse opening penetrating both surfaces. This opening is positioned to align with the orifice when the valving element is installed in the second opening and is rotated to a first position. The tapered tube is adapted to seal the orifice in the first tubular section when the valving element is rotated to a second position. The first end of the tapered tube communicates with the first tubular section of the body. The second end of the tapered tube is closed with a permeable self-sealing membrane adapted for use with cannular needles. The invention includes a tapered plug for the third opening and a cap to cover the valving element to preserve sterility.

REFERENCES:
patent: 4661110 (1987-04-01), Fortier et al.
patent: 4874365 (1989-10-01), Frederick
patent: 5074334 (1991-12-01), Onodera
patent: 5329921 (1994-07-01), Socaris et al.
patent: 5382242 (1995-01-01), Horton et al.
patent: 5472432 (1995-12-01), Martin
patent: 5578016 (1996-11-01), Zinger
patent: 5591128 (1997-01-01), Sithole

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