Baxter International Inc.

Other

American National Red Cross

Acacia Laboratories, Inc.

Philip L Ritger

Daniel R Boggs

Wilfred F Mathewson

Richard L Bringham

Michael J Lysaght

David L Karshmer

Leonard I Friedman

Miguel Leon

Robert R Stromberg

Wifred F Mathewson

Disclosed herein is a luer connector which exhibits an improved engagement force, in comparison to a standard luer connector, when a fluid contaminant is present between the contact surfaces of mated luer fitments. The luer connector of the present invention comprises a textured contact surface which is adapted to trap or channel fluid contaminants away from the contact surfaces of mated luer fitments. Also disclosed herein is a method of making a luer connector with a textured contact surface.

Luer connector

Disclosed herein is a three layered wound dressing delivery system comprising a release layer, and adhesive layer, and a protective layer. The release layer is provided with a cut separating the release layer into two portions. A hinge strip is adhered to the protective layer and release layer along at least one of the lateral edges of their lateral edges.

Wound dressing delivery system

A device including an integrally formed membrane oxygenator and heat exchange device positioned in a single housing. The device includes a thermally conductive body formed with a plurality of blood pathways on its surface, and a gas permeable membrane, or membranes positioned in the housing in substantial contact with the heat exchange body to cover or lie within a portion of each of the pathways. The membrane defines a gas pathway separate from the blood pathway through which a gas is directed. The blood is directed through the individual blood pathways. The device also includes various ports and passageways for delivering the blood to the individual channels, and for collecting and removing the blood from the device.

Method for oxygenation of a patient's blood

A membrane oxygenator designed to provide blood flow evenly across a gas permeable membrane in a direction substantially perpendicular to the longitudinal direction of the gas permeable membrane. In particular, the present invention is directed to a membrane oxygenator wherein the blood is distributed substantially evenly and at a substantially constant velocity, in a cross-wise direction across the gas permeable membrane. In accordance with a preferred embodiment, the membrane is a bundle of gas permeable hollow fibers with the blood being distributed in a direction substantially perpendicular to the longitudinal direction of the individual hollow fiber membranes.

Multiple blood path membrane oxygenator

A hollow fiber membrane fluid treatment apparatus for the transfer of mass or energy through the membrane is disclosed. It is designed particularly, but not only, for use in membrane oxygenators. Hollow fiber membranes extend substantially longitudinally, first inert fibers are spaced between them and also extend substantially longitudinally. Second inert fibers extend generally transverse to the hollow fibers and generally contiguous therewith, so that a first fluid (preferably an oxygen-containing gas) can pass through the hollow fibers and a second fluid (preferably blood) can be passed over their exterior for mass or energy transfer through the membrane. Usually the second inert fibers form a weft and the first inert fibers are spaced one between each two hollow fibers so that the warp consists of alternating strands of hollow fiber and first inert fiber passing over the weft in an oscillating fashion to define at least in part the size of the fluid film to be passed over the hollow fiber membrane for mass or energy transfer through the membrane. The inert fibers are usually biocompatible monofilament polymers which provide precise spacing of the hollow fibers to produce even blood films. Usually, the apparatus is disposed in a blood passageway of a membrane oxygenator, and layered in ribbons sized to fit the blood channel with the first inert fibers spacing the hollow fibers so that the hollow fibers are offset with respect to each other from layer to layer.

Hollow fiber treatment apparatus and membrane oxygenator

Methods and systems for collection of blood components, such as plasma, from donors are provided. One method includes the steps of collecting a unit of whole blood from a donor; forcing the collected blood unit through a plasma separator; accumulating the plasma in a container; and returning concentrated cells to the donor. One system includes a disposable blood collection set and a reusable fixture into which the collection set can be mounted. The fixture is operated by a self-contained energy source, requiring no exterior electrical connection or other external source of energy.

Mobile, self-contained blood collection system and method

Integrated membrane blood oxygenator/heat exchanger

A method and apparatus for optimizing parameters of a hollow membrane filter results in a relatively small filter when a predetermined, substantially constant, driving pressure drop is applied between the inlet and the outlet of the filter. The method includes simultaneous solution of a set of equations to specify fiber length, number and internal diameter. A system including a computer can make optimized filters in response to the determined parameters.

Optimized filter and method

Methods and systems for collection of blood components, such as plasma, from donors are provided. One method includes the steps of collecting a unit of whole blood froma donor; forcing the collected blood unit through a plasma separator; accumulating the plasma in a container; and returning concentrated cells to the donor. One system includes a disposable blood collection set and a reusable fixture into which the collection set can be mounted. The fixture is operated by a self-contained energy source, requiring no exterior electrical connection or other external source of energy.

A system for generating substantially constant fluid pressure is provided for forcing fluid from a variable volume container. The system includes a roller that rotates in response to a constant applied torque to force fluid from the flexible container under a substantially constant pressure. Two spaced apart parallel rollers can exert force on both sides of the container.

Growing community of inventors

Huntington Beach, CA, United States of America

Philip L Ritger