HIGH EFFICIENCY MAGNETIC LINK FOR IMPLANTABLE DEVICES

摘要

Systems and devices for a high-efficiency magnetic link for implantable devices are disclosed herein. These devices can include a charging coil located in the implantable device and a charging coil located in a charge head of a charger. The charging coils can each include an elongate core and wire windings wrapped around a longitudinal axis of the elongate core. The charging coil of the charge head can be attached to a rotatable mount, which can be used to align the longitudinal axis of the charging coil of the charge head with longitudinal axis of the implantable device such that the axes of the charging coils are parallel.

主权项

1. A portable charger device for transcutaneous charging of an implantable neurostimulator in a patient, the charger device comprising:
a charging housing having an external surface that is configured to at least partially engage a skin surface of the patient and be positioned at least partially over the implantable neurostimulator; a contact surface on the charging housing; a charging coil disposed within the charging housing, wherein the charging coil comprises:
an elongate core having a first end, a second end, and a longitudinal axis extending therebetween; anda wire wrapped in a plurality of coils around the elongate core and the longitudinal axis of the elongate core; and a rotatable mount positioned a distance from the contact surface, wherein the charging coil is mounted on the rotatable mount, and wherein the rotatable mount and the charging coil are rotatable with respect to the charging housing.