Tandem Medical, Inc.

Assabet Ventures

Michael W Kleeman

David R Brengle

Marc S Lieberman

Ronald J Forni

James H Jackson

Sanjeev Mohindra

Jeremy Fennelly

Douglas Everett Merritt

Georges Melhem

The present invention comprises a medication delivery system for administering an infusion therapy using a medication delivery pump and related fluid container. Medications in a flexible bag of the container are expelled from the bag by the pump into an administration set and delivered to an infusion site. The administration set limits the rate at which a spring compresses the bag. The system provides improved infusion therapy administration which is particularly advantageous for reducing errors, infections and other complications associated with manual infusion techniques.

Medication delivery system

The present invention comprises a medication delivery pump that is configured to administer an infusion therapy using a medication delivery container. Medications in a flexible bag are expelled from the bag and delivered to an infusion site. A fluid delivery pump of the invention may have a constant force spring and a mechanical timer. The constant force spring is configured to compress a flexible fluid container. The mechanical timer assembly is coupled to the constant force spring and limits the maximum rate at which the spring compresses the fluid container. The pump may include first and second doors for charging the spring. Opening the first pump door partially charges the constant force spring and opening the second pump door fully charges the constant force spring. The pump provides improved administration of infusion therapy which is particularly advantageous for reducing errors, infections and other complications associated with manual infusion techniques.

Medication delivery pump

An SIMD array processor having a scalable and flexible architecture. The SIMD array architecture includes an array of processing elements, a plurality of processor controllers, and at least one other computer system. A system area network interconnects at least one user computer with the processor controllers and the computer system; and, a storage area network interconnects at least one storage device with the processor controllers and the computer system. The SIMD array architecture is adapted to allow different user computers to use different portions of the array of processing elements and/or different processor controllers and computer systems simultaneously. The array of processing elements has a hierarchical structure comprising backplanes, PCB's, ASIC's, and arrays of processing elements. The SIMD array architecture can be scaled by increasing the quantity of backplanes, PCB's, ASIC's, and/or by increasing the size of the arrays of processing elements. The SIMD array architecture can also be flexibly modified to achieve arrays of processing elements with different aspect ratios by selectively accessing data paths interconnecting the processing elements.

MIMD arrangement of SIMD machines

In accordance with the present invention, there is provided a medication delivery container that is preconfigured to administer an infusion therapy upon activation by a pump mechanism. The configuration of the bag can determine the sequence and amount of medication to be delivered. In one embodiment of the invention, the medication delivery container includes a multi-chamber bag, a manifold assembly and an administration set. The manifold assembly is configured with internal conduits and valves to direct output from each chamber of the bag to an output port in the manifold, and into the administration set. In additional embodiments, there are provided structures in the container to alleviate pressure drop during the application of pressure to the container. Invention containers provide improved infusion therapy administration which is particularly advantageous for reducing errors, infections and other complications associated with manual infusion techniques.

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Sudbury, MA, United States of America

Michael W Kleeman