# US 2025/0152018 A1 · Laser system for an optoacoustic probe > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 2025/0152018 A1 - Document ID: US20250152018A1 - Status: Published application - Kind: A1 - Application number: 18/939,149 - Filed: 2024-11-06 - Published: 2025-05-15 - Earliest claimed: 2023-11-09 - Assignees: Seno Medical Instruments, Inc. - Applicants: Seno Medical Instruments, Inc. - Inventors: Xavier Rey Saenz - Web page: https://patentgrep.com/patent/US20250152018A1 ## CPC - A61B 5/0095: {by applying light and detecting acoustic waves, i.e. photoacoustic measurements} - A61B 5/7225: {Details of analogue processing, e.g. isolation amplifier, gain or sensitivity adjustment, filtering, baseline or drift compensation (input circuits for detecting, measuring, or recording bioelectric or biomagnetic signals A61B5/30; specific diagnostic methods using bioelectric or biomagnetic signals A61B5/316)} - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract An optoacoustic probe for optoacoustic imaging of a volume is provided. The optoacoustic probe can include a laser system that has a power supply that can be configured to provide a constant voltage, and a first capacitor bank that may be coupled to the power supply to receive the constant voltage and configured to supply power to a corresponding first flash lamp upon reaching a first determined charge state of the first capacitor bank. The first capacitor bank can include a first closed loop feedback configured with a first setpoint that determines a first charge time for the first determined charge state, and the first flash lamp can be configured to emit a first light along a light path. The optoacoustic probe can also include an optical window that may be configured to carry the first light along the light path to the volume. ## Claims ### Claim 1 An optoacoustic probe for optoacoustic imaging of a volume, the optoacoustic probe comprising: a laser system comprising: a power supply configured to provide a constant voltage; a first capacitor bank coupled to the power supply to receive the constant voltage and configured to supply power to a corresponding first flash lamp upon reaching a first determined charge state of the first capacitor bank; the first capacitor bank including a first closed loop feedback configured with a first setpoint that determines a first charge time for the first determined charge state; and the first flash lamp configured to emit a first light along a light path; and an optical window configured to carry the first light along the light path to the volume. ### Claim 2 (depends on 1) The optoacoustic probe of claim 1, wherein the constant voltage is a first over voltage input for the first capacitor bank relative to the first setpoint of the first closed loop feedback. ### Claim 3 (depends on 1) The optoacoustic probe of claim 1, wherein the laser system further comprises: a second capacitor bank coupled to the power supply to receive the constant voltage and configured to supply power to a corresponding second flash lamp upon reaching a second determined charge state of the second capacitor bank; the second capacitor bank including a second closed loop feedback configured with a second setpoint that determines a second charge time for the second determined charge state; and the second flash lamp configured to emit a second light along the light path. ### Claim 4 (depends on 3) The optoacoustic probe of claim 3, wherein the first setpoint is different than the second setpoint. ### Claim 5 (depends on 3) The optoacoustic probe of claim 3, wherein the constant voltage is a second over voltage input for the second capacitor bank relative to the second setpoint of the second closed loop feedback. ### Claim 6 (depends on 3) The optoacoustic probe of claim 3, wherein the first light of the first flash lamp has a first wavelength, and the second light of the second flash lamp has a second wavelength that is different than the first wavelength. ### Claim 7 (depends on 3) The optoacoustic probe of claim 3, wherein the optical window is further configured to carry the second light along the light path to the volume. ### Claim 8 (depends on 3) The optoacoustic probe of claim 3, wherein the first setpoint is independent of the second setpoint. ### Claim 9 (depends on 1) The optoacoustic probe of claim 1, further comprising: an ultrasound transducer covered by an acoustic lens for receiving signals related to the first light carried to the volume. ### Claim 10 A method for imagining a volume using an optoacoustic probe comprising: supplying a constant voltage from a power supply to a first capacitor bank having a first flash lamp that emits a first light along a light pathway upon reaching a first determined charge state; providing a first closed loop feedback using a first setpoint that is a first voltage that is less than the constant voltage; wherein the first determined charge time is based on the first setpoint; and carrying the first light along the light pathway to an optical window of the optoacoustic probe. ### Claim 11 (depends on 10) The method of claim 10, further comprising: supplying the constant voltage from the power supply to a second capacitor bank having a second flash lamp that emits a second light along the light pathway upon reaching a second determined charge state; providing a second closed loop feedback using a second setpoint that is a second voltage that is less than the constant voltage; wherein the second determined charge time is based on the second setpoint; and carrying the second light along the light pathway to the optical window of the optoacoustic probe. ### Claim 12 (depends on 11) The method of claim 11, wherein the first setpoint is different than the second setpoint. ### Claim 13 (depends on 11) The method of claim 11, wherein the first light of the first flash lamp has a first wavelength, and the second light of the second flash lamp has a second wavelength that is different than the first wavelength. ### Claim 14 (depends on 11) The method of claim 11, wherein the first setpoint is independent of the second setpoint. ### Claim 15 A laser system for an optoacoustic probe comprising: a power supply configured to provide a constant voltage; a first capacitor bank coupled to the power supply to receive the constant voltage and configured to supply power to a corresponding first flash lamp upon reaching a first determined charge state of the first capacitor bank; the first capacitor bank including a first closed loop feedback configured with a first setpoint that determines a first charge time for the first determined charge state; and wherein the first setpoint has a first voltage that is less than the constant voltage. ### Claim 16 (depends on 15) The laser system of claim 15, further comprising: a second capacitor bank coupled to the power supply to receive the constant voltage and configured to supply power to a corresponding second flash lamp upon reaching a second determined charge state of the second capacitor bank; the second capacitor bank including a second closed loop feedback configured with a second setpoint that determines a second charge time for the second determined charge state; and wherein the second setpoint has a second voltage that is less than the constant voltage. ### Claim 17 (depends on 16) The laser system of claim 16, wherein the first setpoint is different than the second setpoint. ### Claim 18 (depends on 16) The laser system of claim 16, wherein the first light of the first flash lamp has a first wavelength, and the second light of the second flash lamp has a second wavelength that is different than the first wavelength. ### Claim 19 (depends on 16) The laser system of claim 16, wherein the first setpoint is independent of the second setpoint. ### Claim 20 (depends on 15) The laser system of claim 15, wherein varying the first setpoint varies the first charge time without varying the constant voltage of the power supply.