The General Hospital Corporation

Numia Medical Technology LLC

Duane Edward Allen

Nathaniel M Sims

Michael H Wollowitz

Paul Henninge

Benjamin James Chomyn

Joseph Matthew Pasquence

Rolf E Zuk

Eric John Flachbart

Andrew W Asack

James Jay Allen

An infusion apparatus includes a housing and a chamber configured to be connected to the housing. The apparatus further includes a weight sensor coupled to a load connector connected to the housing and an optical sensor disposed in the housing. The weight sensor is configured to generate a first signal based on a measured weight of the fluid container attached to the housing in a weight-bearing configuration. The optical sensor is configured to generate a second signal based on detecting drops of the fluid traversing the chamber. The apparatus also includes a flow control mechanism to control a flow rate of the fluid into an outlet channel. The apparatus includes one or more processing devices configured to perform operations including transmitting a control signal to the flow control mechanism to adjust the flow rate.

Flow rate measurement and control of infusion devices

The present invention discloses an arbitration mechanism for controlling access of a plurality of nodes external to a shared resource, to which accesses by the number of nodes must be restricted, is applicable to any shared source in a computer or computer-controlled system. The present design delivers the following advantageous features. It provides localized arbitration to obtain resource access and localized self-management of resource mastery; eliminates resource seizure locally; it allows equal access to the share resource, encapsulate all four above features with the same circuit/protocol.

Multi-master bus arbitration and resource control

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Sheffield, VT, United States of America

Duane Edward Allen