Ingestible device for the release of substances at distinct...

Details Ingestible device for the release of substances at distinct... Ingestible device for the release of substances at distinct...

A - Human Necessities

61

B

A61B 5/07 (2006.01) A61B 5/00 (2006.01) A61F 2/02 (2006.01) A61M 25/01 (2006.01) A61M 31/00 (2006.01)

Patent

CA 2390032

An ingestible device (10) for delivering a substance (12a) to a chosen location in the GI tract of a mammal includes a receiver of electromagnetic radiation for powering an openable part of the device (10) to an opened position for dispensing of the substance (12a). The receiver includes a coiled wire (29) that couples the energy field, the wire (29) having an air or ferrite (36) core. In a further embodiment the invention includes an apparatus for generating the electromagnetic radiation, the apparatus including one or more pairs of field coils (42) supported in a housing. The device (10) optionally includes a latch defined by a heating resistor (20) and a fusible restraint (19). The device (10) may also include a flexible member (51) that may serve the function of activating a transmitter circuit (28) to indicate dispensing of the substance; and means restraining a piston (16) used for expelling the substance.

Le dispositif ingérable (10) servant à administrer une substance (12a) à un emplacement choisi dans le tractus gastro-intestinal d'un mammifère comprend un récepteur de rayonnements électromagnétiques pour actionner une partie ouvrable du dispositif (10) à une position ouverte de distribution de la substance (12a). Le récepteur comprend un fil hélicoïdal (29) qui est couplé au champ électrique, ledit fil (29) comportant un noyau d'air ou de ferrite (36). Dans un autre mode de réalisation, cette invention concerne un appareil servant à générer le rayonnement électromagnétique, ledit appareil comprenant au moins une paire de bobines de champ (42) portée dans un boîtier. Ledit dispositif (10) comporte facultativement un verrou défini par une résistance chauffante (20) et un logement de fusible (19). Ce dispositif (10) peut également comprendre un élément flexible (51) qui peut servir à activer un circuit de transmission (28) pour indiquer la distribution de la substance, et un dispositif de retenue d'un piston (16) utilisé pour expulser la substance.

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