Patent · US Active

Wireless energy transfer system for an implantable medical device using a midfield coupler

US9564777B2 · kind B2 · utility

8Cited by
151References
20Claims
0Family size

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Inventors

Key dates

Filing dateJul 12, 2016
Grant dateFeb 7, 2017
Priority date—
Expiry dateJul 12, 2036

Classification

  • Technology area (CPC H)Electricity
  • CPC primaryH02J2310/23
  • WIPO fieldMedical technology
  • WIPO sectorInstruments

Abstract

Described herein are devices, systems, and methods for wireless power transfer utilizing a midfield source and implant. In one variation, a midfield source may be realized by a patterned metal plate composed of one of more subwavelength structures. These midfield sources may manipulate evanescent fields outside a material (e.g., tissue) to excite and control propagating fields inside the material (e.g., tissue) and thereby generate spatially confined and adaptive energy transport in the material (e.g., tissue). The energy may be received by an implanted device, which may be configured for one or more functions such as stimulation, sensing, or drug delivery.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.