Wireless recharging system and method for flexible implantable subcutaneous medical device
Inventors
Amir, Jack • Mocha, Moty • Strommer, Gera • Kelley, James • Broder, Avraham
Assignees
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Publication Number
US-9717922-B2
Publication Date
2017-08-01
Expiration Date
Abstract
Flexible subcutaneous implantable medical device (IMD), including an elongated and flexible body (256), a plurality of electronic components, at least one rechargeable battery (426), at least one antenna (260, 422), at least one lead (254) and at least one transition unit (252), the antenna for receiving and transmitting electromagnetic radiation and the lead for providing an electric shock, wherein the elongated and flexible body is structured from a plurality of units, wherein a first one of the plurality of units encapsulates the rechargeable battery, wherein each one of the other plurality of units respectively encapsulates a respective one of the plurality of electronic components, wherein the antenna is positioned in the transition unit, wherein the transition unit is covered with a biocompatible polymer, wherein the antenna receives electromagnetic radiation for recharging the rechargeable battery and wherein the antenna includes a copper coil having a generally cylindrical shape.
Core Innovation
The invention is a flexible subcutaneous implantable medical device having an elongated and flexible body structured from a plurality of units, where a first unit encapsulates at least one rechargeable battery and each of the other units encapsulates a respective electronic component. The device includes at least one antenna and at least one lead providing an electric shock, with a transition unit coupling the lead to an end of the elongated and flexible body.
At least one antenna is positioned in the transition unit and covered with a biocompatible polymer. The antenna receives electromagnetic radiation to recharge the rechargeable battery, and the antenna comprises a copper coil having a generally cylindrical shape.
The device also supports wireless recharging alongside data/programming conveyed via modulated electromagnetic signals, and includes sensing and safety controls for recharging, including sampling of current and/or voltage of the received electromagnetic radiation and determining a temperature of at least one of the antenna and the rechargeable battery.
Claims Coverage
The document provides two independent claims directed to a flexible subcutaneous IMD having an elongated flexible body built from multiple encapsulated units, a rechargeable battery, an antenna for electromagnetic radiation, and a lead for providing an electric shock. Across the independent claims, five inventive features are identified, focusing on unitized encapsulation, transition-unit coupling, antenna placement and structure, and biocompatible polymer coverage.
Unitized elongated flexible body with battery and components encapsulated in separate units
The elongated and flexible body is structured from a plurality of units, including a first unit that encapsulates the at least one rechargeable battery and each other unit that encapsulates a respective electronic component.
Transition unit coupling lead to flexible body and biocompatible polymer coverage
At least one transition unit couples the at least one lead to at least one end of the elongated and flexible body, wherein the at least one transition unit is covered with a biocompatible polymer.
Antenna positioned in transition unit for wireless recharging
The at least one antenna is positioned in the at least one transition unit, where the antenna receives electromagnetic radiation for recharging the at least one rechargeable battery.
Copper coil generally cylindrical antenna structure
The at least one antenna comprises a copper coil having a generally cylindrical shape.
Antenna positioned around a non-electrically-active unit and biocompatible polymer covered
At least one antenna is positioned around at least one of the plurality of units which is not electrically active, and the at least one antenna is covered with a biocompatible polymer.
Claim coverage centers on a flexible subcutaneous IMD constructed from multiple encapsulated units and on antenna placement and structure for wireless recharging. The independent claims emphasize either antenna positioning in a lead-coupling transition unit covered with a biocompatible polymer, including a copper coil generally cylindrical antenna, or antenna placement around a non-electrically-active unit, also biocompatible polymer covered.
Stated Advantages
Not explicitly described in patent.
Documented Applications
Not explicitly described in patent.
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