Cairdac

Guillaume Ferin

Jean-Luc Bonnet

An Nguyen-Dinh

Alaa Makdissi

Willy Regnier

Cyril Meynier

Etienne Flesch

Claire Bantignies

Hung Le Khanh

The instrument includes a dual-wall deformable tube, with an inner sleeve, a coaxial outer sleeve, and an imaging module connected to the inner and outer sleeves. An array of transducers is carried by an outer face of the imaging module. The inner sleeve and the outer sleeve are mobile in relative axial translation between: a folded position in which the inner and outer sleeves both have a cylindrical shape, and in which the imaging module substantially extends in the continuation of the inner sleeve; and an expanded position, in which the inner sleeve has a cylindrical shape and the outer sleeve has a flared shape widening on the distal side and in which the imaging module substantially extends with the face that carries the transducers of the array turned in axial direction towards the front of the deformable tube.

Catheter with built-in ultrasound imaging sensors

An energy harvester converts into electrical energy the external stresses applied to the implant at the rhythm of the heartbeats. This harvester comprises an inertial unit. A transducer provides an oscillating electrical signal that is rectified and regulated, for powering the implant and/or charging a battery. The instantaneous variations of this electrical signal between two heartbeats are analyzed inside successive time windows, to derive therefrom a physiological parameter and/or a physical activity parameter of the patient with the implant, in particular as a function of a peak of amplitude of the first oscillation of the electrical signal, and of the level of this signal after the bounce phase of the signal oscillation.

Leadless-capsule autonomous cardiac implant comprising an energy harvester providing physiological or activity information about the patient

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Tours, France

Guillaume Ferin