US 11,691,020 B2
Autonomous cardiac implant of the leadless capsule type, comprising an interface for external communication during transportation and storage
Alaa Makdissi, Paris (FR); Willy Regnier, Longjumeau (FR); and An Nguyen-Dinh, La Riche (FR)
Assigned to Cairdac, Anthony (FR)
Filed by CAIRDAC, Antony (FR)
Filed on Sep. 28, 2021, as Appl. No. 17/487,980.
Claims priority of application No. 20315507 (EP), filed on Dec. 28, 2020.
Prior Publication US 2022/0203101 A1, Jun. 30, 2022
Int. Cl. A61N 1/378 (2006.01); A61N 1/375 (2006.01); A61N 1/05 (2006.01); A61N 1/372 (2006.01); H02J 7/32 (2006.01); A61N 1/36 (2006.01)
CPC A61N 1/3785 (2013.01) [A61N 1/0565 (2013.01); A61N 1/3756 (2013.01); A61N 1/3787 (2013.01); A61N 1/37205 (2013.01); A61N 1/37223 (2013.01); A61N 1/37512 (2017.08); H02J 7/32 (2013.01); A61N 1/36139 (2013.01); A61N 1/3727 (2013.01); A61N 1/37229 (2013.01)] 12 Claims
OG exemplary drawing
 
1. An autonomous cardiac implant of the leadless capsule type, comprising:
a tubular body;
surface electrodes carried by the tubular body;
an energy harvesting module adapted to convert external stresses applied to the implant into electrical energy, comprising an inertial pendular unit including an elastically deformable element coupled to an inertial mass;
a rechargeable battery adapted to be charged by the energy harvesting module, the battery being previously charged to an initial charge level; and
an interface circuit adapted to selectively couple the surface electrodes to the rechargeable battery, comprising a switching circuit adapted to operate a switching between (i) a transport and storage configuration before implantation of the implant and (ii) a functional configuration after the implant has been implanted,
wherein in the transport and storage configuration the surface electrodes are connected to a link coupling to an external source forming an electrical energy reserve, the external source being physically separated from the implant, and
the interface circuit is adapted to receive a power supply from the external source and to release this power supply to the rechargeable battery, and
wherein in the functional configuration, the surface electrodes are decoupled from the external source,
wherein the implant further comprises at least one of:
a data transmitter circuit adapted, in the transport and storage configuration, to send communication signals, via the surface electrodes, on the link coupling to the external source, and
a data receiver circuit adapted, in the transport and storage configuration, to receive, via the surface electrodes, communication signals transmitted on the link coupling to the external source,
and wherein a switch interposed between said external source and said link coupling to the external source is adapted to be controlled by a control signal for producing short cuts of a supply voltage of the power supply received by the capsule, whereby providing said communication signals.