Pressure/force computer controlled drug delivery system and...

A - Human Necessities – 61 – M

Patent

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Details

A61M 1/00 (2006.01) A61M 5/145 (2006.01) A61M 5/168 (2006.01) A61M 5/20 (2006.01) A61M 5/48 (2006.01)

Patent

CA 2328163

An electric infusion pump system (10) is described. The infusion pump system (10) minimizes pain, tissue damage by monitoring, and controlling hypodermic injection pressure. The infusion pump system (10) is made of a mechanical assembly, and an electrical controller (18). The mechanical assembly consists of a drive mechanism (12) including a housing (22), a motor (66), a mount for the fluid storage device, a load cell (78) to determine fluid pressure, and a coupling (30) to move the fluid storage device's plunger (94); a fluid storage device (90) including a reciprocating plunger (94); and a fluid delivery device including a tube (14), and a needle (17). The electrical controller (18), which controls the overall operation of the system via control of the motor (66), consists of a master microprocessor, a slave microprocessor, an input device for the user, and memory.

L'invention concerne un système de pompe électrique de perfusion (10). Ce système (10) permet de limiter la douleur et la détérioration des tissus au moyen du contrôle et de la régulation de la pression d'injection hypodermique. Ce système (10) est constitué par un ensemble mécanique et par une unité de commande électrique (18). Cet ensemble mécanique consiste en un mécanisme de commande (12) comprenant un boîtier (22), un moteur (66), un support du dispositif de conservation du liquide, une cellule de charge (78) servant à déterminer la pression du liquide et un raccord (30) servant à déplacer le piston (94) du dispositif de conservation de liquide; en un dispositif (90) de conservation de liquide comprenant un piston (94) conçu pour effectuer un déplacement alternatif et en un dispositif d'administration de liquide comprenant un tube (14) et une aiguille (17). L'unité de commande électrique (18), qui commande la totalité du fonctionnement du système par l'intermédiaire de la commande du moteur (66), consiste en un microprocesseur pilote, un microprocesseur asservi, un dispositif d'entrée pour l'utilisateur et une mémoire.

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