Transcutaneous power conveyance device

What is this patent about?

’137 is related to the field of transcutaneous power delivery for medical devices, specifically for treating physiological disorders through neural modulation. The technology provides a mechanism to transfer energy from an external source to an implanted unit, which then stimulates or inhibits specific nerves—such as the hypoglossal nerve for sleep apnea or the occipital nerve for migraines—to manage conditions like obstructive sleep apnea, hypertension, and chronic headaches.

The underlying idea behind ’137 is the use of a modular, two-part external assembly that separates the disposable interface from the reusable electronics to ensure consistent energy transfer. By integrating a primary induction coil into a flexible, adhesive patch that mechanically locks onto a rigid electronics housing, the system maintains a stable spatial relationship between the power source and the internal implant while allowing the user to easily replace the adhesive component without discarding the expensive processing hardware.

The claims of ’137 focus on a device for treating sleep apnea comprising a flexible carrier designed to fit between a subject's chin and neck, featuring an adhesive on one side and a conductive coil for power transmission. The device is characterized by a mechanical connector that extends from the side of the carrier opposite the adhesive, specifically engineered to be received and held by a receiver on a separate electronics housing.

In practice, the flexible carrier acts as a skin-conforming interface that houses the primary antenna, which is often a double-layer crossover coil designed to minimize parasitic capacitance. The mechanical connector, which may take the form of a rodlike element, bayonet mount, or flexible extension arms, ensures that the electronics housing is not only physically secured but also electrically aligned with the antenna. This physical coupling allows the processor to monitor the degree of coupling between the external and internal coils, enabling the system to detect physiological movements—like the tongue shifting during an apnea event—and adjust power delivery in real-time.

This approach differs from prior solutions by providing a selective mechanical engagement that facilitates both rotation and secure retention without requiring the housing to be permanently fixed to the adhesive. Unlike traditional bulky straps or integrated one-piece patches, this design allows for a low-profile, breathable interface that can be precisely positioned. The use of redundant electrical contacts and circular exposed portions ensures that power and data flow remain uninterrupted even if the housing rotates, providing a robust and user-friendly solution for long-term neuromodulation therapy.