Variable volume, shape memory actuated insulin dispensing pump

F - Mech Eng,Light,Heat,Weapons – 04 – B

Patent

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Details

F04B 13/00 (2006.01) A61M 5/142 (2006.01) F04B 9/00 (2006.01) F04B 49/06 (2006.01) F04B 53/14 (2006.01) F15B 15/28 (2006.01)

Patent

CA 2604498

A portable pumping system provides insulin or other drugs to a user. A shape memory element is used to actuate the pump and an intelligent system controls the actuator in order to minimize stresses within the system and provide accurate and reliable dosage delivery. The control system utilizes various types of feedback to monitor and optimize the position of the pumping mechanisms. Physical design aspects also minimize stress and the combination of the physical design aspects and the intelligent operation of the system results in a lightweight and cost effective pump that may be used in a disposable fashion if desired.

L'invention concerne un système de pompage portable destiné à distribuer de l'insuline ou d'autres médicaments à un utilisateur. Un élément à mémoire de forme est utilisé pour actionner la pompe, et un système intelligent commande l'actionneur afin de réduire au minimum les contraintes à l'intérieur du système et de fournir une distribution de dose précise et fiable. Le système de commande met en oeuvre divers types de rétroaction pour contrôler et optimiser la position des mécanismes de pompage. Des aspects de conception physique permettent également de réduire au minimum les contraintes, et la combinaison de ces aspects de conception physique et du fonctionnement intelligent du système permet d'obtenir une pompe légère et économique pouvant être utilisée de manière jetable si nécessaire.

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