System and method for generating treatment patterns
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61F-009/008
A61B-018/22
A61B-018/20
출원번호
US-0285205
(2014-05-22)
등록번호
US-10179071
(2019-01-15)
발명자
/ 주소
Mordaunt, David Haydn
Marcellino, George
Wiltberger, Michael W.
Hendrickson, Justin
Bell, Katrina
Andersen, Dan E.
출원인 / 주소
TOPCON MEDICAL LASER SYSTEMS, INC.
대리인 / 주소
Dentons US LLP
인용정보
피인용 횟수 :
0인용 특허 :
50
초록▼
System and method for generating patterns P of aiming and treatment light on target eye tissue (e.g. the retina) of a patient's eye. The system includes light sources for treatment and aiming light, a scanner for generating patterns of spots of the generated light, a controller, and a graphic user i
System and method for generating patterns P of aiming and treatment light on target eye tissue (e.g. the retina) of a patient's eye. The system includes light sources for treatment and aiming light, a scanner for generating patterns of spots of the generated light, a controller, and a graphic user interface that allows the user to select one of several possible spot patterns, adjust the spot density and/or spot size, and apply patterns with fixed or varied density. The patterns can be formed of interlaced sub-patterns and/or scanned without adjacent spots being consecutively formed to reduce localized heating. Partially or fully enclosed exclusion zones within the patterns protect sensitive target tissue from exposure to the light.
대표청구항▼
1. A method of treating target tissue using a treatment system having a treatment light source, a scanner assembly, and control electronics, the method comprising: displaying, on a display, a graphical user interface having a plurality of pattern configurations;receiving a user selection of a patter
1. A method of treating target tissue using a treatment system having a treatment light source, a scanner assembly, and control electronics, the method comprising: displaying, on a display, a graphical user interface having a plurality of pattern configurations;receiving a user selection of a pattern configuration of the plurality of pattern configurations;partitioning the pattern configuration into a first sub-pattern of spots and a second sub-pattern of spots, wherein the first sub-pattern of spots and the second sub-pattern of spots each include a plurality of concentric arcs or a plurality of rows and columns, and wherein the first sub-pattern of spots are interlaced with the second sub-pattern of spots to form the pattern configuration;in accordance with the user selection, initiating, at a first time, translation of a treatment beam of treatment light to form a portion of the first sub-pattern of the selected pattern configuration of spots on the target tissue;prior to completing formation of the first sub-pattern of the selected pattern configuration of spots on the target tissue, detecting an interruption event; andin accordance with detecting the interruption event: forgoing forming remaining spots of the first sub-pattern on the target tissue; andinitiating, at a second time after the first time, translation of the treatment beam of treatment light to form the second sub-pattern of the selected pattern configuration of spots on the target tissue, wherein the treatment beam of treatment light is generated using the treatment light source and translated at the first and second times using the scanner assembly and the control electronics. 2. The method of claim 1, wherein displaying the graphical user interface comprises: displaying the graphical user interface on a touch sensitive screen. 3. The method of claim 1, wherein the spots in the first sub-pattern have a diameter that is greater than that of the spots in the second sub-pattern. 4. The method of claim 1, wherein the first and second sub-patterns of spots are the same. 5. The method of claim 4, wherein the first sub-pattern is positionally shifted relative to the second sub-pattern. 6. The method of claim 4, wherein the second sub-pattern is positionally rotated by a predetermined angle relative to the first sub-pattern. 7. The method of claim 1, wherein the portion of the first sub-pattern of spots is formed sequentially on the target tissue by initiating translation of the treatment beam of light at the first time,wherein the second sub-pattern of spots is formed sequentially on the target tissue by initiating translation of the treatment beam of light at the second time, andwherein adjacent spots in the overall selected pattern configuration are formed non-consecutively. 8. The method of claim 1, wherein the selected pattern configuration is substantially round in shape and has a substantially constant density of the spots. 9. The method of claim 1, wherein the spots in the selected pattern configuration are positioned in N concentric circles each concentric circle having a diameter D defined as: D(n)=EZ+SD+(n−1)×SD(1+Round(DF))wherein: D(n) is the diameter of the nth concentric circle of the selected pattern configuration with n=1, 2, . . . N,EZ is a diameter of an exclusion zone in a center of the selected pattern configuration,SD is a diameter of the spots, andRound (DF) is a density factor DF rounded up or down to the nearest whole number. 10. The method of claim 9, wherein each of the n=1, 2, . . . N concentric circles includes a predetermined number(n) of the spots according to: Number(n)=8×Round[π×D(n)×18×1SD×1DF]wherein Round[ ] means rounding up or down to the nearest whole number. 11. The method of claim 1, wherein the spots in the selected pattern configuration are positioned in N concentric circles each concentric circle having a diameter D defined as: D(n)=SD+(n−1)×SD(1+Round(DF))wherein: D(n) is the diameter of the nth concentric circle of the selected pattern configuration with n=2, 3, . . . N,SD is a diameter of the spots, andRound(DF) is a density factor DF rounded up or down to the nearest whole number. 12. The method of claim 11, wherein each of the n=2, 3, . . . N concentric circles includes a predetermined number(n) of the spots according to: Number(n)=8×Round[π×D(n)×18×1SD×1DF]wherein Round[ ] means rounding up or down to the nearest whole number. 13. The method of claim 1, wherein the spots in the selected pattern configuration are positioned in concentric arcs of equal angular extent A along N concentric circles each having a diameter D defined as: D(n)=EZ+SD+(n−1)×SD(1+Round(DF))wherein: D(n) is the diameter of the nth concentric circle of the selected pattern configuration with n=1, 2, . . . N,EZ is a diameter of an exclusion zone in a center of the selected pattern configuration,SD is a diameter of the spots,Round (DF) is a density factor DF rounded up or down to the nearest whole number, andA is the angular extent of the arcs and is between 0 and 2π. 14. The method of claim 13, wherein each of the n=1, 2, . . . N concentric arcs includes a predetermined number(n) of the snots according to: Number(n)=8×Round[π×D(n)×18×1SD×1DF×A2π]wherein Round[ ] means rounding up or down to the nearest whole number. 15. The method of claim 1, wherein the spots in the selected pattern configuration are positioned in concentric arcs of equal angular extent A along N concentric circles each having a diameter D defined as: D(n)=SD+(n−1)×SD(1+Round(DF))wherein: D(n) is the diameter of the nth concentric circle of the selected pattern configuration with n=2, 3, . . . N,SD is a diameter of the spots,Round(DF) is a density factor DF rounded up or down to the nearest whole number, andA is the angular extent of the arcs and is between 0 and 2n. 16. The method of claim 15, wherein each of the n=2, 3, . . . N concentric arcs includes a predetermined number(n) of the spots according to: Number(n)=8×Round[π×D(n)×18×1SD×1DF×A2π]wherein Round[ ] means rounding up or down to the nearest whole number. 17. The method of claim 1, wherein the selected pattern configuration has a density of the spots that varies. 18. The method of claim 1, wherein the selected pattern configuration is an arc pattern, and wherein the method further comprises: automatically initiating, at a third time after the second time, translation of the treatment beam of treatment light to form additional arc patterns radially outward from the arc pattern on the target tissue. 19. The method of claim 1, wherein the spots of the selected pattern configuration have varying diameters. 20. The method of claim 1, further comprising: prior to the first time, generating an aiming beam of aiming light using an aiming light source of the treatment system;translating the aiming beam to form an enclosed aiming pattern of the aiming light on the target tissue in which the selected pattern configuration of spots is to be confined. 21. The method of claim 1, further comprising: prior to the first time, generating an aiming beam of aiming light using an aiming light source of the treatment system; andtranslating the aiming beam to form an aiming pattern of the aiming light on the target tissue that indicates a center position of the selected pattern configuration of spots. 22. The method of claim 21, wherein the aiming pattern further indicates an outer boundary in which the selected pattern configuration of spots is to be confined. 23. The method of claim 21, wherein the aiming pattern comprises two or more crossed lines. 24. The method of claim 1, wherein the selected pattern configuration of spots defines a partially enclosed exclusion zone on the target tissue in which the spots are not incident. 25. The method of claim 24, wherein the second sub-pattern of spots includes a plurality of sets of spots, wherein a first set of spots in the plurality of sets of spots is disposed closest to the exclusion zone relative to other sets of spots in the plurality of sets of spots, and wherein the first set of spots is scanned prior to the other sets of spots. 26. The method of claim 1, wherein the selected pattern configuration of spots comprises a plurality of arc patterns separated from each other. 27. The method of claim 1, further comprising: prior to the first time, generating an aiming beam of aiming light using an aiming light source of the treatment system;translating the aiming beam to form the selected pattern configuration of spots on the target tissue. 28. The method of claim 1, wherein the second sub-pattern of spots is scanned in a random ordering. 29. The method of claim 1, wherein the second sub-pattern of spots is scanned consecutively.
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