# US 10,869,713 B2 · Ablation power supply > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 10,869,713 B2 - Document ID: US10869713B2 - Status: Granted - Kind: B2 - Application number: 15/656,227 - Filed: 2017-07-21 - Published: 2019-01-24 - Granted: 2020-12-22 - Earliest claimed: 2017-07-21 - Assignees: Biosense Webster (Israel) Ltd. - Applicants: Biosense Webster (Israel) Ltd. - Inventors: Assaf Govari - Web page: https://patentgrep.com/patent/US10869713B2 ## CPC - A61B 18/1206: {Generators therefor} - A61B 18/1233: {with circuits for assuring patient safety} - A61B 18/14: Probes or electrodes therefor - A61B 18/1492: {having a flexible, catheter-like structure, e.g. for heart ablation (A61B18/1477 takes precedence)} - H02J 7/50: acting upon multiple batteries simultaneously or sequentially - A61B 2017/00088: {using thermistors} - A61B 2017/00092: {using thermocouples} - A61B 2018/00178: {Electrical connectors} - A61B 2018/00351: {Heart} - A61B 2018/00577: {Ablation} - A61B 2018/00708: {switching the power on or off} - A61B 2018/00815: {measured by a thermistor} - A61B 2018/00821: {measured by a thermocouple} - A61B 2018/00839: {Bioelectrical parameters, e.g. ECG, EEG} - A61B 2018/00875: {Resistance or impedance} - A61B 2018/1226: {powered by a battery} - A61B 2018/1266: {with DC current output} - A61B 2018/1273: {including multiple generators in one device} - A61B 2034/2051: {Electromagnetic tracking systems} - A61B 2034/2072: {Reference field transducer attached to an instrument or patient} - H02J 7/345: {using capacitors as storage or buffering devices} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) - H02J: ELECTRIC POWER NETWORKS; CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY ## Abstract Apparatus, consisting of a power supply having a first electrical connection to a relatively high voltage source and connectable to ablation circuitry in a catheter via a second electrical connection. There are rechargeable first and second subsidiary power sources in the power supply. The apparatus also has a control unit, and a first switch alternately connecting the ablation circuitry to the first and second subsidiary power sources responsively to control signals from the control unit. The apparatus also has a second switch alternately connecting one of the first and second subsidiary power sources to the high voltage source for recharging thereof responsively to the control signals while the one of the first and second subsidiary power sources is disconnected from the ablation circuitry and another of the first and second subsidiary power sources is connected to the ablation circuitry by the first switch. ## Claims ### Claim 1 An apparatus, comprising: a power supply having a first electrical connection to a high voltage source and connectable to ablation circuitry in a catheter via a second electrical connection; rechargeable first and second subsidiary power sources in the power supply; a control unit; a first switch alternately connecting the ablation circuitry to the first and second subsidiary power sources responsively to control signals from the control unit; and a second switch alternately connecting one of the first and second subsidiary power sources to the high voltage source for recharging thereof responsively to the control signals while the one of the first and second subsidiary power sources is disconnected from the ablation circuitry and another of the first and second subsidiary power sources is connected to the ablation circuitry by the first switch. ### Claim 2 (depends on 1) The apparatus according to claim 1, the first switch and the second switch comprising double pole, double throw switches. ### Claim 3 (depends on 1) The apparatus according to claim 1, the first switch and the second switch being ganged together. ### Claim 4 (depends on 1) The apparatus according to claim 1, the first and second subsidiary power sources comprising batteries or capacitors. ### Claim 5 (depends on 1) The apparatus according to claim 1, the first and second subsidiary power sources being configured to output a lower voltage than the high voltage source. ### Claim 6 (depends on 1) The apparatus according to claim 1, the high voltage source being configured to produce alternating current (AC) and the first and second subsidiary power sources being configured to produce direct current (DC), further comprising: a direct current generator having an AC input linked to the high voltage source and a DC output linked to the first and second subsidiary power sources; and an alternating current generator having a DC input linked to the first and second subsidiary power sources and an AC output linked to the ablation circuitry. ### Claim 7 (depends on 1) The apparatus according to claim 1, the control unit being operative to unlink both of the first and second subsidiary power sources from the ablation circuitry and from the high voltage source. ### Claim 8 (depends on 1) The apparatus according to claim 1, the control unit being operative to concurrently link both of the first and second subsidiary power sources to the ablation circuitry and concurrently unlink both of the first and second subsidiary power sources from the high voltage source. ### Claim 9 A method, comprising: providing a power supply having a first electrical connection to a high voltage source and connectable to ablation circuitry in a catheter via a second electrical connection; incorporating rechargeable first and second subsidiary power sources in the power supply; providing a control unit; alternately connecting, via a first switch, the ablation circuitry to the first and second subsidiary power sources responsively to control signals from the control unit; and alternately connecting, via a second switch, one of the first and second subsidiary power sources to the high voltage source for recharging thereof responsively to the control signals while the one of the first and second subsidiary power sources is disconnected from the ablation circuitry and another of the first and second subsidiary power sources is connected to the ablation circuitry by the first switch. ### Claim 10 (depends on 9) The method according to claim 9, the first switch and the second switch comprising double pole, double throw switches. ### Claim 11 (depends on 9) The method according to claim 9, the first switch and the second switch being ganged together. ### Claim 12 (depends on 9) The method according to claim 9, the first and second subsidiary power sources being batteries or capacitors. ### Claim 13 (depends on 9) The method according to claim 9, the first and second subsidiary power sources being configured to output a lower voltage than the high voltage source. ### Claim 14 (depends on 9) The method according to claim 9, the high voltage source producing alternating current (AC) and the first and second subsidiary power sources producing direct current (DC), further comprising: providing a direct current generator having an AC input linked to the high voltage source and a DC output linked to the first and second subsidiary power sources; and providing an alternating current generator having a DC input linked to the first and second subsidiary power sources and an AC output linked to the ablation circuitry. ### Claim 15 (depends on 9) The method according to claim 9, the control unit being operative to unlink both of the first and second subsidiary power sources from the ablation circuitry and from the high voltage source. ### Claim 16 (depends on 9) The method according to claim 9, the control unit being operative to concurrently link both of the first and second subsidiary power sources to the ablation circuitry and concurrently unlink both of the first and second subsidiary power sources from the high voltage source. ### Claim 17 An apparatus, comprising: a power supply configured to couple a voltage source with an ablation circuitry; rechargeable first and second subsidiary power sources in the power supply, each of the first and second subsidiary power sources being configured to alternately source power to the ablation circuitry; a first switch alternately connecting the ablation circuitry to the first and second subsidiary power sources; and a second switch alternately connecting one of the first and second subsidiary power sources to the voltage source for recharging thereof while the one of the first and second subsidiary power sources is disconnected from the ablation circuitry and another of the first and second subsidiary power sources is connected to the ablation circuitry by the first switch, the first and second switches being configured to provide uninterrupted source power to the ablation circuitry during operation of the first switch. ### Claim 18 (depends on 17) The apparatus according to claim 17, the voltage source being configured to produce alternating current (AC) and the first and second subsidiary power sources being configured to produce direct current (DC), the apparatus further comprising: a direct current generator having an AC input linked to the voltage source and a DC output linked to the first and second subsidiary power sources; and an alternating current generator having a DC input linked to the first and second subsidiary power sources and an AC output linked to the ablation circuitry. ### Claim 19 (depends on 17) The apparatus according to claim 17, further comprising a control unit operable to control the first and second switches, the control unit being operative to unlink both of the first and second subsidiary power sources from the ablation circuitry and from the voltage source. ### Claim 20 (depends on 17) The apparatus according to claim 17, further comprising a control unit operable to control the first and second switches, the control unit being operative to concurrently link both of the first and second subsidiary power sources to the ablation circuitry and concurrently unlink both of the first and second subsidiary power sources from the voltage source.