Apparatus for patterned plasma-mediated laser ophthalmic surgery
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-018/20
A61F-009/008
A61F-009/007
출원번호
US-0742663
(2015-06-17)
등록번호
US-9271870
(2016-03-01)
발명자
/ 주소
Palanker, Daniel V.
Blumenkranz, Mark S.
Mordaunt, David H.
Andersen, Dan E.
출원인 / 주소
OPTIMEDICA CORPORATION
대리인 / 주소
Abbott Medical Optics Inc.
인용정보
피인용 횟수 :
1인용 특허 :
105
초록▼
A system for ophthalmic surgery on an eye includes: a pulsed laser which produces a treatment beam; an OCT imaging assembly capable of creating a continuous depth profile of the eye; an optical scanning system configured to position a focal zone of the treatment beam to a targeted location in three
A system for ophthalmic surgery on an eye includes: a pulsed laser which produces a treatment beam; an OCT imaging assembly capable of creating a continuous depth profile of the eye; an optical scanning system configured to position a focal zone of the treatment beam to a targeted location in three dimensions in one or more floaters in the posterior pole. The system also includes one or more controllers programmed to automatically scan tissues of the patient's eye with the imaging assembly; identify one or more boundaries of the one or more floaters based at least in part on the image data; iii. identify one or more treatment regions based upon the boundaries; and operate the optical scanning system with the pulsed laser to produce a treatment beam directed in a pattern based on the one or more treatment regions.
대표청구항▼
1. A method for cataract surgery on an eye of a patient using a pulsed laser surgical system, comprising: operating an imaging system so as to acquire image data from locations distributed throughout a volume of a cataractous crystalline lens of the patient and construct one or more images of the pa
1. A method for cataract surgery on an eye of a patient using a pulsed laser surgical system, comprising: operating an imaging system so as to acquire image data from locations distributed throughout a volume of a cataractous crystalline lens of the patient and construct one or more images of the patient's eye tissues from the image data, wherein the one or more images comprise an image of at least a portion of the crystalline lens;identifying, using a computer system, an anterior capsulotomy cutting region based on the image data, the capsulotomy cutting region comprising an anterior cutting boundary axially spaced from a posterior cutting boundary so as to define an axially-elongated cutting zone transecting the anterior capsule; andoperating the surgical system to direct a pulsed laser treatment beam in a pattern based on the anterior capsulotomy cutting region so as to create an anterior capsulotomy in the crystalline lens. 2. The method of claim 1, wherein the imaging system is an optical coherence tomography imaging system. 3. The method of claim 1, further comprising aligning a treatment beam with a target tissue of the patient prior to creating the capsulotomy. 4. The method of claim 3, wherein the aligning comprises generating an image of an alignment pattern on a tissue of the patient's eye. 5. The method of claim 4, wherein the aligning comprises adjusting the size, location or shape of the alignment pattern based on user input. 6. The method of claim 1, wherein the posterior boundary does not transect the posterior capsule of the lens. 7. The method of claim 1, further comprising identifying, using a computer system, a lens fragmentation region comprising a posterior boundary that does not transect the posterior capsule of the lens. 8. The method of claim 7, wherein the lens fragmentation region comprises a constructed anterior boundary and said posterior boundary of the lens fragmentation region. 9. The method of claim 7, further comprising operating the surgical system so as to direct a treatment beam in a second pattern based on the fragmentation region so as to fragment the crystalline lens. 10. The method of claim 1, wherein all laser cutting occurs anterior to the posterior capsule surface. 11. The method of claim 1, entering user input to an interface so as to identify one or more parameters of the cataract surgery procedure. 12. The method of claim 1, wherein the pulsed laser surgical system comprises: a laser assembly for generating a pulsed laser treatment beam that creates dielectric breakdown in a focal zone of the treatment beam within tissues of the patient's eye so as to effect a cataract surgery procedure;the imaging system configured for imaging tissue of a cataractous crystalline lens of the patient using non-visible light;an optical scanning system configured for positioning the focal zone of the treatment beam to targeted locations of the crystalline lens; anda computer control system operatively coupled to the laser assembly, the imaging system, and the optical scanning system. 13. A method for cataract surgery on an eye of a patient using a pulsed laser surgical system, comprising: operating an optical coherence imaging system so as to acquire image data from locations distributed throughout a volume of a crystalline lens of the patient;identifying, using a computer system, one or more tissue structures of the cataractous crystalline lens based on the image data, the one or more structures comprising an anterior capsule boundary;identifying, using a computer, an anterior capsulotomy cutting region comprising an anterior cutting boundary axially spaced from a posterior cutting boundary so as to define an axially-elongated cutting zone transecting the anterior capsule; andoperating the surgical system to direct a treatment beam in a pattern based on the anterior capsulotomy cutting region so as to create an anterior capsulotomy in the crystalline lens. 14. The method of claim 13, further comprising performing an alignment step, prior to creating the anterior capsulotomy, so as to align a treatment beam with a target tissue of the patient. 15. The method of claim 13, further comprising constructing, using a computer, one or more images of the patient's eye tissues from the image data, wherein the one or more images comprise an image of at least a portion of the crystalline lens. 16. The method of claim 13, further comprising identifying a lens fragmentation region comprising a posterior boundary that does not transect the posterior capsule of the lens; and operating the surgical system so as to direct a treatment beam in a second pattern based on the fragmentation region so as to fragment the crystalline lens. 17. The method of claim 16, further comprising identifying, using a computer, a posterior axial cutting limit for positioning of any treatment beam focal zone, such that the posterior axial cutting limit is located anterior to the posterior capsule surface. 18. The system of claim 13, further comprising receiving input from a user input system that at least partially defines one or more cutting regions. 19. A method for cataract surgery on an eye of a patient using a pulsed laser surgical system, comprising: scanning the patient's eye tissues with an optical coherence tomography imaging system so as to acquire image data of at least a portion of a crystalline lens of the patient and construct an image of at least a portion of the crystalline lens;identifying an anterior capsulotomy cutting region based on the image data comprising an anterior cutting boundary axially spaced from a posterior cutting boundary so as to define an axially-elongated cutting zone transecting the anterior capsule;identifying a lens fragmentation region comprising a posterior boundary that does not transect the posterior capsule of the lens;operating the surgical system to (a) direct a treatment beam in a first pattern based on the anterior capsulotomy cutting region so as to create an anterior capsulotomy in the crystalline lens; and (b) direct a treatment beam in a second pattern based on the fragmentation region so as to fragment the crystalline lens. 20. The method of claim 19, further comprising identifying, using a computer, a posterior axial cutting limit for positioning of any treatment beam focal zone, such that the posterior axial cutting limit is located anterior to the posterior capsule surface.
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