Intra-surgical optical coherence tomographic imaging of cataract procedures
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61N-005/06
A61F-009/008
A61B-003/10
출원번호
US-0715938
(2015-05-19)
등록번호
US-9456926
(2016-10-04)
발명자
/ 주소
Goldshleger, Ilya
Holland, Guy
Juhasz, Adam
Kurtz, Ronald M.
Vardin, Kostadin
출원인 / 주소
ALCON LENSX, INC.
대리인 / 주소
Latimer, S. Brannon
인용정보
피인용 횟수 :
0인용 특허 :
143
초록▼
A cataract surgical system includes a laser source to generate a first set of laser pulses; a guiding optic to guide the first set of laser pulses to a cataract target region in an eye; a laser controller to generate an electronic representation of a target scan pattern, and to control the guiding o
A cataract surgical system includes a laser source to generate a first set of laser pulses; a guiding optic to guide the first set of laser pulses to a cataract target region in an eye; a laser controller to generate an electronic representation of a target scan pattern, and to control the guiding optic to scan the first set of laser pulses according to a portion of the target scan pattern to create a first photo-disrupted region in the cataract target region; and a Spectral Domain Optical Coherence Tomographic (SD-OCT) imaging system to generate an image of a portion of the first photo-disrupted region. The laser controller can generate an electronic representation of a modified scan pattern in relation to the image generated by the SD-OCT imaging system, and control the guiding optic to scan a second set of laser pulses according the modified scan pattern.
대표청구항▼
1. A cataract surgical system, comprising: a laser source, configured to generate a first set of laser pulses;a guiding optic, coupled to the laser source, configured to guide the first set of laser pulses to a cataract target region in an eye;a laser controller, configured to generate an electronic
1. A cataract surgical system, comprising: a laser source, configured to generate a first set of laser pulses;a guiding optic, coupled to the laser source, configured to guide the first set of laser pulses to a cataract target region in an eye;a laser controller, configured to generate an electronic representation of a target scan pattern, andto control the guiding optic to scan the first set of laser pulses according to a portion of the target scan pattern to create a first photo-disrupted region in the cataract target region; anda Swept-Source Optical Coherence Tomographic (SS-OCT) imaging system, configured to generate an image that includes a portion of the first photo-disrupted region with an image resolution in the range of 0.5-10 million image points per image and a frame-rate in the range of 20-500 frames/sec; whereinthe laser controller is configured to generate an electronic representation of a modified scan pattern in relation to the image generated by the SS-OCT imaging system, andto control the guiding optic to scan a second set of laser pulses according the modified scan pattern to create a second photo-disrupted region. 2. The cataract surgical system of claim 1, wherein: the Swept-Source Optical Coherence Tomographic (SS-OCT) imaging system is configured to generate the image that includes a portion of the first photo-disrupted region with an image resolution in the range of 0.5-2 million image points per image and a frame-rate in the range of 20-200 frames/sec. 3. The cataract surgical system of claim 1, wherein: the Swept-Source Optical Coherence Tomographic (SS-OCT) imaging system is configured to generate the image that includes a portion of the first photo-disrupted region with an image resolution in the range of 2-10 million image points per image and a frame-rate in the range of 25-500 frames/sec. 4. The cataract surgical system of claim 1, wherein: the Swept-Source Optical Coherence Tomographic (SS-OCT) imaging system is configured to generate the image that includes a portion of the first photo-disrupted region with a resolution in the range of 2,000-5,000 A-scans per B-scan. 5. The cataract surgical system of claim 1, wherein: the Swept-Source Optical Coherence Tomographic (SS-OCT) imaging system is configured to generate the image that includes a portion of the first photo-disrupted region with an A-scan acquisition rate of 30-300 kHz. 6. The cataract surgical system of claim 1, wherein: the Swept-Source Optical Coherence Tomographic (SS-OCT) imaging system is configured to generate the image that includes a portion of the first photo-disrupted region with an A-scan acquisition rate of 100-1,000 kHz. 7. The cataract surgical system of claim 1, wherein: the cataract target region comprises an anterior capsular layer; andthe target scan pattern comprises a set of target points on a cylinder to form at least one of a circular capsulotomy, an anterior capsulotomy, and a curvilinear capsulotomy. 8. The cataract surgical system of claim 1, wherein: the cataract target region comprises a portion of the lens; andthe target scan pattern comprises a set of target points on at least one of radial chop planes, cylinders, a spiral pattern and a mesh pattern to induce at least one of a chop, a photo-disruption and a lysis of the lens. 9. The cataract surgical system of claim 1, wherein: the SS-OCT imaging system is configured to have a z-imaging range greater than 4 mm. 10. The cataract surgical system of claim 1, wherein: the SS-OCT imaging system is configured to have a z-imaging range greater than 6 mm. 11. The cataract surgical system of claim 1, wherein: the SS-OCT imaging system is configured to generate the image in an imaging time less than 0.1 sec. 12. The cataract surgical system of claim 1, the Swept-Source-OCT imaging system comprising: a swept wavelength light source to generate a swept-wavelength beam;a beam guidance system, configured to split the swept-wavelength beam into an image beam and a reference beam, to guide the image beam to the eye and to guide a returned image beam from the eye,to guide the reference beam to a reference mirror and to guide a returned reference beam from the reference mirror, andto combine the returned image beam and the returned reference beam into a combined beam; andan OCT camera, configured to receive the combined beam, comprising a detector to detect the combined beam; a data binner to detect the combined beam as a time sequence of data;a Fast-Fourier-Transform-system to Fourier transform the detected time sequence of data; andan image generator to generate an image from the Fourier transform. 13. The cataract surgical system of claim 1, wherein: the laser controller is configured to generate the electronic representation of the modified target scan pattern according to a modification input received from the system operator in response to the system operator having analyzed the image of the portion of the first photo-disrupted region. 14. The cataract surgical laser system of claim 1, wherein: the SS-OCT imaging system is configured to display calibration marks to assist the system operator to calibrate a location of the first photo-disrupted region relative to the target scan pattern.
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