Abbott Laboratories Corporation

The Kendall Company

Jack L Harms

Charles H Seberg

Joseph N Genese

Andrew J Muetterties

Albert F Bujan

Michael R Carrington

An extended port arrangement for a multi-chambered sequential compression sleeve where a port extends through an outer large pressure chamber and in communication with an inner pressure chamber. The extended port consists of an inner bushing sealable with the sheet defining the inner chamber. The port has a housing which extends through an outer sheet and mates with the inner bushing and is in fluid communication therewith.

Multi-chamber porting device

A disposable intravenous administration set for use with a single pump chamber wherein a primary and secondary set are combined into a single I.V. pump set. The dual capacity set would be utilized in conjunction with an I.V. pump having a capacity for at least two distinct flow rates. The primary and secondary portions of the set are interconnected through a Y-type backcheck valve in the usual manner with the secondary source of liquid placed at a higher level than that of the primary. With the secondary set connected to a secondary source of liquid the pump will be set at a flow rate faster than that for the primary set. After the secondary source of liquid is depleted, the primary source will then be administered as the pump will automatically convert to the slower flow rate. In order to prevent the action of the pump from drawing any of the primary liquid into that of the secondary during administration of the secondary liquid, a restrictor is placed downstream of the backcheck valve or alternatively a drip chamber is utilized for the same purpose.

Dual flow rate intravenous administration set with single pump chamber

A needle-inside, catheter placement assembly including needle and catheter units. The needle unit comprises a needle joined by a flexible line to a needle hub. The catheter unit comprises a catheter, winged catheter insertion means, flexible tubing and tube hub, wherein an area of reduced thickness on each wing of the insertion means provides improved flexibility for the wing. The needle is captured within the winged catheter insertion means when the wings are simultaneously held in a vertical position and axial and rotational alignment of the needle and catheter units are maintained by mechanically interlocked complementary means associated with the needle and lumen of the winged catheter insertion means.

Winged catheter placement assembly

Equipment sets for the sequential administration of medical liquids wherein a primary liquid can be administered at a flow rate independent of the flow rate of a secondary liquid, and including a barrier substantially impervious to air to prevent the inadvertent administration of air when the secondary liquid is depleted. The equipment sets of this invention have a primary tube valve controlled by pilot liquid diverted from the secondary liquid flow path.

Equipment sets having a pilot liquid controlled primary tube valve for

A needle-inside, catheter placement assembly including a needle and a catheter unit comprising a catheter, winged catheter insertion means, flexible tubing and tube hub, wherein an area of reduced thickness on each wing of the insertion means provides improved flexibility for the wing and the needle is captured within the winged catheter insertion means when the wings are simultaneously held in a vertical position.

Growing community of inventors

Mundelein, IL, United States of America

Jack L Harms