# US 12,179,026 B2 · Systems and methods for wireless communication with implantable devices > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,179,026 B2 - Document ID: US12179026B2 - Status: Granted - Kind: B2 - Application number: 18/336,787 - Filed: 2023-06-16 - Published: 2023-12-21 - Granted: 2024-12-31 - Earliest claimed: 2022-06-17 - Assignees: William Marsh Rice University - Applicants: William Marsh Rice University - Inventors: Jacob Robinson; Fatima Alrashdan; Kaiyuan Yang; Zhanghao Yu; Joshua Woods; Amanda Singer; Matthew Parker - Web page: https://patentgrep.com/patent/US12179026B2 ## CPC - A61N 1/37223: {Circuits for electromagnetic coupling} - A61N 1/0534: {Electrodes for deep brain stimulation} - A61N 1/36062: {Spinal stimulation} - A61N 1/3727: {characterised by the modulation technique} - A61N 1/37288: {Communication to several implantable medical devices within one patient} - A61N 1/3787: {from an external energy source} - A61N: ELECTROTHERAPY; MAGNETOTHERAPY; RADIATION THERAPY; ULTRASOUND THERAPY (measurement of bioelectric currents A61B; surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body A61B18/00; anaesthetic apparatus in general A61M; incandescent lamps H01K; infrared radiators for heating H05B) ## Abstract Exemplary embodiments of this disclosure include apparatus, systems and methods utilizing a passive, power-efficient backscattering communication system that enables transmitting data wirelessly between implantable magnetoelectric (ME) devices and an external base station. Certain embodiments encode the transmitted data through modulating the resonance frequency of a ME film by digitally tuning its electric loading conditions. ## Claims ### Claim 1 A wireless bioelectronic system comprising: an implantable device comprising an electrical circuit coupled to a magnetoelectric film, wherein the magnetoelectric film is configured to generate a backscattered magnetic field when excited by an external pulse magnetic field; an external transceiver, wherein: the external transceiver is configured to transmit the external pulse magnetic field to the implantable device; the implantable device is configured to transmit a response signal corresponding to the backscattered magnetic field to the external transceiver using one or more modulation techniques; a magnetic field generator; and a resonant property modulator, wherein: the magnetoelectric film has a property, and the electrical circuit is configured to apply different electric loading conditions that change the property of the magnetoelectric film. ### Claim 2 (depends on 1) The wireless bioelectronic system of claim 1 wherein the property of the magnetoelectric film is an electric, elastic, or magnetic property of the magnetoelectric film. ### Claim 3 (depends on 1) The wireless bioelectronic system of claim 1 wherein the electrical circuit is configured to modulate a voltage, resistive load, inductive load or capacitor load applied to the magnetoelectric film. ### Claim 4 (depends on 1) The wireless bioelectronic system of claim 1 wherein: the magnetoelectric film comprises a piezoelectric layer; and the magnetoelectric film comprises a magnetostrictive layer coupled to the piezoelectric layer. ### Claim 5 (depends on 1) The wireless bioelectronic system of claim 1 wherein: the magnetoelectric film comprises a first magnetostrictive layer and a second magnetostrictive layer; the magnetoelectric film comprises a piezoelectric layer; and the piezoelectric layer is positioned between the first magnetostrictive layer and the second magnetostrictive layer. ### Claim 6 (depends on 1) The wireless bioelectronic system of claim 1 wherein: the implantable device is a first implantable device; and the wireless bioelectronic system comprises a plurality of implantable devices, wherein each implantable device comprises an electrical circuit couple to a magnetoelectric film. ### Claim 7 (depends on 1) The wireless bioelectronic system of claim 1 wherein the implantable device is configured to provide neural stimulation. ### Claim 8 (depends on 1) The wireless bioelectronic system of claim 1 wherein the implantable device is coupled to a pair of electrodes. ### Claim 9 (depends on 1) The wireless bioelectronic system of claim 1 wherein the implantable device is coupled to a plurality of electrodes. ### Claim 10 (depends on 9) The wireless bioelectronic system of claim 9 wherein the plurality of electrodes are arranged in concentric circles. ### Claim 11 (depends on 1) The wireless bioelectronic system of claim 1 further comprising a set of other implantable devices, wherein the implantable device and the set of other implantable devices are positioned in an array or pattern to generate stimulation patterns. ### Claim 12 (depends on 1) The wireless bioelectronic system of claim 1 wherein the property includes a resonant frequency. ### Claim 13 A method comprising: providing a wireless bioelectronic system that includes: an implantable device comprising an electrical circuit coupled to a magnetoelectric film, wherein the magnetoelectric film is configured to generate a backscattered magnetic field when excited by an external pulse magnetic field; an external transceiver, wherein: the external transceiver is configured to simultaneously transmit the external pulse magnetic field to the implantable device; the implantable device is configured to transmit response to the external transceiver using one or more modulation techniques; a magnetic field generator; and a resonant property modulator, wherein: the magnetoelectric film has a property, and the electrical circuit is configured to apply different electric loading conditions that change the property of the magnetoelectric film; generating a magnetic field with the magnetic field generator; producing an electrical output signal with the magnetoelectric film; and modifying the property of the magnetoelectric film with the electrical circuit. ### Claim 14 (depends on 13) The method of claim 13 wherein the property of magnetoelectric film is an electric, elastic, or magnetic property of the magnetoelectric film. ### Claim 15 (depends on 13) The method of claim 13 wherein modifying the property of the magnetoelectric film includes modulating a voltage, resistive load, inductive load or capacitor load applied to the magnetoelectric film. ### Claim 16 (depends on 13) The method of claim 13 wherein: the magnetoelectric film comprises a piezoelectric layer; and the magnetoelectric film comprises a magnetostrictive layer coupled to the piezoelectric layer. ### Claim 17 (depends on 13) The method of claim 13 wherein: the magnetoelectric film comprises a first magnetostrictive layer and a second magnetostrictive layer; the magnetoelectric film comprises a piezoelectric layer; and the piezoelectric layer is positioned between the first magnetostrictive layer and the second magnetostrictive layer. ### Claim 18 (depends on 13) The method of claim 13 wherein: the implantable device is a first implantable device; and the wireless bioelectronic system comprises a plurality of implantable devices, wherein each implantable device comprises an electrical circuit couple to a magnetoelectric film. ### Claim 19 (depends on 13) The method of claim 13 wherein the implantable device is configured to provide neural stimulation. ### Claim 20 (depends on 13) The method of claim 13 wherein the implantable device is coupled to a pair of electrodes. ### Claim 21 (depends on 13) The method of claim 13 wherein the implantable device is coupled to a plurality of electrodes. ### Claim 22 (depends on 21) The method of claim 21 wherein the plurality of electrodes are arranged in concentric circles. ### Claim 23 (depends on 13) The method of claim 13 wherein the wireless bioelectronic system further comprises a set of other implantable devices, and wherein the implantable device and the set of other implantable devices are positioned in an array or pattern to generate stimulation patterns. ### Claim 24 (depends on 13) The method of claim 13 wherein the property includes a resonant frequency.