Baxter Laboratories, Inc.

International Paper Company

Baxter Travenol Laboratories, Inc.

Burton Salkin

William J Schnell

Jimmy L Miller

Robert L Gordon

Ludwig Wolf, Jr

Richard P Goldhaber

A connector system for use in a dialyzer is disclosed herein for connecting an external fluid conduit to a tubularly-shaped, semipermeable membrane. The system protects the membrane from forces imposed on the conduit. The system includes a jack member, which is secured within the dialyzer and has a passageway, which at one end is connected to the conduit and which at the other end is connected to a button-type connector which provides communication between the passageway and the semipermeable membrane. The button connector includes a cap and a barrel and has a passageway extending through the cap and barrel. An O-ring is provided for engaging both the jack member and the connector for cooperation in assuring fluid flow from the conduit to the semipermeable membrane.

Dialyzer connector system with snap-lock button-type connector and O-ring

A coil dialyzer is disclosed herein which includes a hollow core assembly to which an inlet blood conduit is connected. A semipermeable membrane and a support member are connected to the core and wound about the core. An outlet jack assembly is connected to the other end of the membrane and a blood outlet conduit is connected to the outlet jack. This assembly is positioned within a housing having both a top cap and a bottom cap. Incoming blood flow is directed through the blood inlet conduit through the wound membrane and exits the dialyzer through the blood outlet conduit. Dialysis solution flows upwardly through the wound membrane and support member over the top thereof and back down through the hollow core so as to define a generally inverted U-shape dialysis flow path.

Dialyzer construction

A support member for use in a coil dialyzer to support an elongated, tubularly-shaped, semipermeable membrane is disclosed herein. The member is embossed and has generally angularly-extending parallel ribs on both sides of the web. The ribs are arranged so that on each side there are high ribs and low ribs positioned between said high ribs. The ribs are arranged in a pattern whereby the lower ribs are at least of two different heights so that on each side of the support membrane there are ribs of at least three different heights.

Multi-level support member for use with semipermeable membrane

A button-type fluid connector is disclosed herein for use in a coil dialyzer. The connector provides fluid communication between a fluid conduit and a tubularly shaped, semipermeable membrane. The connector includes a cap and an integral barrel extending from the cap. The barrel has at least one snap-lock recess in its surface and the connector is provided with a passageway which extends through the barrel and cap.

Snap-lock button-type fluid connector with recess

Disclosed is an improved catheter package wherein the improvement comprises a rupturable, lubricant containing pouch located within the package and adjacent to the tip of the catheter.

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Schaumburg, IL, United States of America

Burton Salkin