# US 12,766,036 B2 · Ophthalmological laser treatment device > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 12,766,036 B2 - Document ID: US12766036B2 - Status: Granted - Kind: B2 - Application number: 18/127,157 - Filed: 2023-03-28 - Published: 2023-10-05 - Granted: 2026-10-20 - Earliest claimed: 2022-03-29 - Assignees: Ziemer Ophthalmic Systems AG - Applicants: Ziemer Ophthalmic Systems AG - Inventors: Christian Rathjen; Michael Steinlechner - Web page: https://patentgrep.com/patent/US12766036B2 ## CPC - A61F 9/008: using laser - A61B 18/20: using laser - A61F 2009/00897: {Scanning mechanisms or algorithms} - A61F: FILTERS IMPLANTABLE INTO BLOOD VESSELS; PROSTHESES; DEVICES PROVIDING PATENCY TO, OR PREVENTING COLLAPSING OF, TUBULAR STRUCTURES OF THE BODY, e.g. STENTS; ORTHOPAEDIC, NURSING OR CONTRACEPTIVE DEVICES; FOMENTATION; TREATMENT OR PROTECTION OF EYES OR EARS; BANDAGES, DRESSINGS OR ABSORBENT PADS; FIRST-AID KITS (dental prosthetics A61C) - A61B: DIAGNOSIS; SURGERY; IDENTIFICATION (usefulness limited to only animals A61D) ## Abstract An ophthalmological laser treatment device and methods are disclosed, the ophthalmological laser treatment device comprising: a base station having a treatment laser source, an application head, and an arm configured to provide a beam path for the treatment laser beam; wherein the ophthalmological laser treatment device includes a laser beam monitor, a light signal source, and a control module, the laser beam monitor arranged to receive a light signal generated by the light signal source, the light signal having traveled through the arm along the beam path; wherein the control module is configured to control the ophthalmological laser treatment device using signal characteristics of the light signal. ## Claims ### Claim 1 An ophthalmological laser treatment device comprising: a base station having a treatment laser source configured to generate a treatment laser beam; an application head; and an arm arranged between the base station and the application head configured to provide a beam path for the treatment laser beam, wherein the ophthalmological laser treatment device includes a laser beam monitor, a light signal source, and a control module, the laser beam monitor comprising a photodetector array arranged to receive a light signal generated by the light signal source, the light signal having traveled through the arm along the beam path, wherein the control module is configured to: receive a photodetector array signal from the photodetector array, determine, using the photodetector array signal, signal characteristics of the light signal, and control the ophthalmological laser treatment device using the signal characteristics, wherein the control module is configured to determine, using the signal characteristics, at least one of the following properties of the treatment laser beam: a rotational orientation of the treatment laser beam after exiting the arm, a beam power of the treatment laser beam, a laser pulse energy of the treatment laser beam, or a laser beam profile of the treatment laser beam. ### Claim 2 (depends on 1) The ophthalmological laser treatment device of claim 1, wherein the laser beam monitor is arranged in the base station. ### Claim 3 (depends on 2) The ophthalmological laser treatment device of claim 2, wherein the light signal source is arranged in the base station and the light signal travels downstream through the arm to the application head and back upstream through the arm to the base station. ### Claim 4 (depends on 2) The ophthalmological laser treatment device of claim 2, wherein the light signal source is arranged in the application head. ### Claim 5 (depends on 1) The ophthalmological laser treatment device of claim 1, wherein the laser beam monitor is arranged in the application head. ### Claim 6 (depends on 5) The ophthalmological laser treatment device of claim 5, wherein the light signal source is arranged in the base station. ### Claim 7 (depends on 1) The ophthalmological laser treatment device of claim 1, wherein the photodetector array is arranged behind a beam splitter in the beam path. ### Claim 8 (depends on 1) The ophthalmological laser treatment device of claim 1, wherein the light signal source includes at least one of: the treatment laser source, a pilot laser source, or a light-emitting diode. ### Claim 9 (depends on 1) The ophthalmological laser treatment device of claim 1, wherein the light signal source is a screen configured to display an image generated by at least one of: the treatment laser source, a pilot laser source, or a light-emitting diode. ### Claim 10 (depends on 1) The ophthalmological laser treatment device of claim 1, wherein the arm is an articulated arm comprising one or more internal mirrors arranged in the beam path. ### Claim 11 (depends on 1) The ophthalmological laser treatment device of claim 1, wherein the control module is configured to determine, using the signal characteristics, at least one of the following properties of the treatment laser beam: a beam position of the treatment laser beam after exiting the arm, a rotational orientation of the treatment laser beam after exiting the arm, a beam power of the treatment laser beam, a laser pulse energy of the treatment laser beam, or a laser beam profile of the treatment laser beam. ### Claim 12 (depends on 1) The ophthalmological laser treatment device of claim 1, wherein the ophthalmological laser treatment device comprises a scanner configured to deflect the treatment laser beam to generate a laser treatment pattern, and wherein the control module is configured to control the ophthalmological treatment device, using the signal characteristics, by controlling the scanner. ### Claim 13 (depends on 1) The ophthalmological laser treatment device of claim 1, wherein the control module is further configured to generate an alarm message if the signal characteristics do not satisfy at least one pre-defined signal threshold. ### Claim 14 (depends on 1) The ophthalmological laser treatment device of claim 1, wherein the control module is configured to control the ophthalmological laser treatment device, using the signal characteristics, by controlling the properties of the treatment laser beam, wherein the properties of the treatment laser beam include at least one of the following: the laser pulse energy of the treatment laser beam or the beam profile of the treatment laser beam. ### Claim 15 A method for controlling an ophthalmological laser treatment device, the ophthalmological laser treatment device comprising: a base station having a treatment laser source configured to generate a treatment laser beam, an application head, and an arm arranged between the base station and the application head configured to provide a beam path for the treatment laser beam; wherein the ophthalmological laser treatment device includes a laser beam monitor, a light signal source, and a control module, the laser beam monitor comprising a photodetector array arranged to receive a light signal provided by the light signal source, the light signal having traveled through the arm along the beam path, the method comprising: receiving, in the control module, a photodetector array signal from the photodetector array; determining, in the control module, using the photodetector array signal, signal characteristics of the light signal; and controlling, in the control module, the ophthalmological laser treatment device using the signal characteristics, wherein determining, in the control module, the signal characteristics, comprises determining at least one of the following properties of the treatment laser beam: a rotational orientation of the treatment laser beam after exiting the arm, a beam power of the treatment laser beam, a laser pulse energy of the treatment laser beam, or a laser beam profile of the treatment laser beam. ### Claim 16 An ophthalmological laser treatment device comprising: a base station having a treatment laser source configured to generate a treatment laser beam; an application head; an arm arranged between the base station and the application head configured to provide a beam path for the treatment laser beam; a light signal source configured to generate a light signal; a laser beam monitor comprising a photodetector array configured to receive the light signal generated by the light signal source, the light signal having traveled through the arm along the beam path; and a control module configured to: receive a photodetector array signal from the laser beam monitor, determine, using the photodetector array signal, signal characteristics of the light signal, and control the ophthalmological laser treatment device using the determined signal characteristics, wherein the control module is configured to determine, using the signal characteristics, at least one of the following properties of the treatment laser beam: a rotational orientation of the treatment laser beam after exiting the arm, a beam power of the treatment laser beam, a laser pulse energy of the treatment laser beam, or a laser beam profile of the treatment laser beam. ### Claim 17 (depends on 16) The ophthalmological laser treatment device of claim 16, wherein the light signal travels downstream through the arm to the application head and back upstream through the arm to the base station. ### Claim 18 (depends on 16) The ophthalmological laser treatment device of claim 16, wherein the light signal source includes at least one of: the treatment laser source, a pilot laser source, or a light-emitting diode. ### Claim 19 (depends on 16) The ophthalmological laser treatment device of claim 16, wherein the control module is configured to determine, using the signal characteristics, at least one of the following properties of the treatment laser beam: a beam position of the treatment laser beam after exiting the arm, a rotational orientation of the treatment laser beam after exiting the arm, a beam power of the treatment laser beam, a laser pulse energy of the treatment laser beam, or a laser beam profile of the treatment laser beam. ### Claim 20 (depends on 16) The ophthalmological laser treatment device of claim 16, wherein the ophthalmological laser treatment device comprises a scanner configured to deflect the treatment laser beam to generate a laser treatment pattern, and wherein the control module is configured to control the ophthalmological treatment device, using the signal characteristics, by controlling the scanner.