DE102017124545B3 - Mikroskop - Google Patents

Mikroskop Download PDF

Info

Publication number
DE102017124545B3
DE102017124545B3 DE102017124545.6A DE102017124545A DE102017124545B3 DE 102017124545 B3 DE102017124545 B3 DE 102017124545B3 DE 102017124545 A DE102017124545 A DE 102017124545A DE 102017124545 B3 DE102017124545 B3 DE 102017124545B3
Authority
DE
Germany
Prior art keywords
oct
microscope
eye
laser
control unit
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
DE102017124545.6A
Other languages
German (de)
English (en)
Inventor
Christoph Hauger
Thorsten Tritschler
Manfred Dick
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Carl Zeiss Meditec AG
Original Assignee
Carl Zeiss Meditec AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Carl Zeiss Meditec AG filed Critical Carl Zeiss Meditec AG
Priority to DE102017124545.6A priority Critical patent/DE102017124545B3/de
Priority to JP2018197285A priority patent/JP7036700B2/ja
Priority to US16/165,750 priority patent/US10939816B2/en
Application granted granted Critical
Publication of DE102017124545B3 publication Critical patent/DE102017124545B3/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Images

Classifications

    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/103Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining refraction, e.g. refractometers, skiascopes
    • A61B3/1035Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for determining refraction, e.g. refractometers, skiascopes for measuring astigmatism
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/20Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/1015Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for wavefront analysis
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/102Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions for optical coherence tomography [OCT]
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B3/00Apparatus for testing the eyes; Instruments for examining the eyes
    • A61B3/10Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
    • A61B3/13Ophthalmic microscopes
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007Methods or devices for eye surgery
    • A61F9/008Methods or devices for eye surgery using laser
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007Methods or devices for eye surgery
    • A61F9/008Methods or devices for eye surgery using laser
    • A61F9/00821Methods or devices for eye surgery using laser for coagulation
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007Methods or devices for eye surgery
    • A61F9/008Methods or devices for eye surgery using laser
    • A61F9/00825Methods or devices for eye surgery using laser for photodisruption
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00Microscopes
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00Microscopes
    • G02B21/0004Microscopes specially adapted for specific applications
    • G02B21/0012Surgical microscopes
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B21/00Microscopes
    • G02B21/06Means for illuminating specimens
    • G02B21/08Condensers
    • G02B21/082Condensers for incident illumination only
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61BDIAGNOSIS; SURGERY; IDENTIFICATION
    • A61B18/00Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body
    • A61B18/18Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves
    • A61B18/20Surgical instruments, devices or methods for transferring non-mechanical forms of energy to or from the body by applying electromagnetic radiation, e.g. microwaves using laser
    • A61B2018/2035Beam shaping or redirecting; Optical components therefor
    • A61B2018/20351Scanning mechanisms
    • A61B2018/20359Scanning mechanisms by movable mirrors, e.g. galvanometric
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007Methods or devices for eye surgery
    • A61F9/008Methods or devices for eye surgery using laser
    • A61F2009/00844Feedback systems
    • A61F2009/00848Feedback systems based on wavefront
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007Methods or devices for eye surgery
    • A61F9/008Methods or devices for eye surgery using laser
    • A61F2009/00844Feedback systems
    • A61F2009/00851Optical coherence topography [OCT]
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007Methods or devices for eye surgery
    • A61F9/008Methods or devices for eye surgery using laser
    • A61F2009/00861Methods or devices for eye surgery using laser adapted for treatment at a particular location
    • A61F2009/00863Retina
    • AHUMAN NECESSITIES
    • A61MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61FFILTERS 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
    • A61F9/00Methods or devices for treatment of the eyes; Devices for putting in contact-lenses; Devices to correct squinting; Apparatus to guide the blind; Protective devices for the eyes, carried on the body or in the hand
    • A61F9/007Methods or devices for eye surgery
    • A61F9/008Methods or devices for eye surgery using laser
    • A61F2009/00861Methods or devices for eye surgery using laser adapted for treatment at a particular location
    • A61F2009/0087Lens

Landscapes

  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Ophthalmology & Optometry (AREA)
  • Surgery (AREA)
  • General Health & Medical Sciences (AREA)
  • Veterinary Medicine (AREA)
  • Heart & Thoracic Surgery (AREA)
  • Public Health (AREA)
  • Animal Behavior & Ethology (AREA)
  • Engineering & Computer Science (AREA)
  • Biomedical Technology (AREA)
  • Optics & Photonics (AREA)
  • Molecular Biology (AREA)
  • Medical Informatics (AREA)
  • Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
  • Biophysics (AREA)
  • Vascular Medicine (AREA)
  • Analytical Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Chemical & Material Sciences (AREA)
  • Radiology & Medical Imaging (AREA)
  • Electromagnetism (AREA)
  • Otolaryngology (AREA)
  • Eye Examination Apparatus (AREA)
  • Microscoopes, Condenser (AREA)
DE102017124545.6A 2017-10-20 2017-10-20 Mikroskop Active DE102017124545B3 (de)

Priority Applications (3)

Application Number Priority Date Filing Date Title
DE102017124545.6A DE102017124545B3 (de) 2017-10-20 2017-10-20 Mikroskop
JP2018197285A JP7036700B2 (ja) 2017-10-20 2018-10-19 顕微鏡
US16/165,750 US10939816B2 (en) 2017-10-20 2018-10-19 Microscope

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102017124545.6A DE102017124545B3 (de) 2017-10-20 2017-10-20 Mikroskop

Publications (1)

Publication Number Publication Date
DE102017124545B3 true DE102017124545B3 (de) 2019-01-24

Family

ID=64952095

Family Applications (1)

Application Number Title Priority Date Filing Date
DE102017124545.6A Active DE102017124545B3 (de) 2017-10-20 2017-10-20 Mikroskop

Country Status (3)

Country Link
US (1) US10939816B2 (https=)
JP (1) JP7036700B2 (https=)
DE (1) DE102017124545B3 (https=)

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10360570B4 (de) 2003-12-22 2006-01-12 Carl Zeiss Optisches Meßsystem und optisches Meßverfahren
EP1918756B1 (de) 2006-11-06 2010-07-28 Carl Zeiss Surgical GmbH Operationsmikroskop mit OCT-System und Operationsmikroskop-Beleuchtungsmodul mit OCT-System
WO2015017375A2 (en) * 2013-07-29 2015-02-05 Bioptigen, Inc. Procedural optical coherence tomography (oct) for surgery and related systems and methods
EP3005938A2 (en) 2008-03-19 2016-04-13 Carl Zeiss Meditec AG Surgical microscopy system having an optical coherence tomography facility
US20160360961A1 (en) * 2012-04-05 2016-12-15 Bioptigen, Inc. Optical Coherence Tomography Systems Integrated with Surgical Microscopes

Family Cites Families (27)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3508306A1 (de) 1985-03-08 1986-09-11 Fa. Carl Zeiss, 7920 Heidenheim Mikroskoptubus
US6609794B2 (en) * 2001-06-05 2003-08-26 Adaptive Optics Associates, Inc. Method of treating the human eye with a wavefront sensor-based ophthalmic instrument
DE10202509A1 (de) 2002-01-23 2003-07-31 Leica Microsystems Ophthalmo-Operationsmikroskop
WO2008061034A1 (en) 2006-11-10 2008-05-22 Amo Manufacturing Usa, Llc Operator-controlled scanning laser procedure designed for large-area epithelium removal
US20100324542A1 (en) 2007-11-02 2010-12-23 Kurtz Ronald M Method to Guide a Cataract Procedure by Corneal Imaging
JP5139832B2 (ja) 2008-02-14 2013-02-06 浜松ホトニクス株式会社 観察装置
DE102008047400B9 (de) 2008-09-16 2011-01-05 Carl Zeiss Surgical Gmbh Augenchirurgie-Messsystem
US8459795B2 (en) 2008-09-16 2013-06-11 Carl Zeiss Meditec Ag Measuring system for ophthalmic surgery
DE102008063644B4 (de) 2008-12-18 2018-03-29 Carl Zeiss Meditec Ag Operationsmikroskop für die Kataraktchirurgie
DE102008062908B4 (de) 2008-12-23 2011-01-20 Carl Zeiss Ag Augenchirurgiesystem
JP5743411B2 (ja) * 2009-05-08 2015-07-01 キヤノン株式会社 光画像撮像装置及びその方法
DE102009037841B4 (de) 2009-08-18 2020-01-23 Carl Zeiss Meditec Ag Optisches System mit Wellenfrontanalysesystem und Baugruppe mit Wellenfrontanalysesystem für ein Mikroskop mit Mikroskopchassis
US9333036B2 (en) 2010-01-22 2016-05-10 Board Of Regents, The University Of Texas System Systems, devices and methods for imaging and surgery
JP5649324B2 (ja) * 2010-04-15 2015-01-07 キヤノン株式会社 眼科装置及び眼科装置の制御方法
WO2011151064A1 (de) 2010-06-03 2011-12-08 Carl Zeiss Meditec Ag Vorrichtung und verfahren zur glaskörperchirurgie
DE102010024606B4 (de) 2010-06-22 2019-11-14 Carl Zeiss Meditec Ag Aberrometrisches Messsystem
US8554037B2 (en) 2010-09-30 2013-10-08 Raydiance, Inc. Hybrid waveguide device in powerful laser systems
KR101536997B1 (ko) * 2011-06-27 2015-07-16 웨이브라이트 게엠베하 눈 수술 장치 및 방법
GB201217538D0 (en) * 2012-10-01 2012-11-14 Optos Plc Improvements in or relating to scanning laser ophthalmoscopes
AU2013341289B2 (en) 2012-11-07 2015-09-17 Clarity Medical Systems, Inc. Apparatus and method for operating a real time large diopter range sequential wavefront sensor
JP6187751B2 (ja) * 2013-06-27 2017-08-30 株式会社ニデック 画像処理プログラム
US20150002812A1 (en) * 2013-06-27 2015-01-01 Nidek Co., Ltd. Image processing apparatus and storage medium
US9538911B2 (en) 2013-09-19 2017-01-10 Novartis Ag Integrated OCT-refractometer system for ocular biometry
WO2015130651A1 (en) 2014-02-28 2015-09-03 Imra America, Inc. Multi-wavelength, ultrashort pulse generation and delivery, with applications in microscopy
WO2016011043A1 (en) 2014-07-14 2016-01-21 University Of Rochester Real-time laser modulation and delivery in opthalmic devices for scanning, imaging, and laser treatment of the eye
WO2017044969A1 (en) * 2015-09-11 2017-03-16 Simon Fraser University Coherence-gated wavefront-sensorless adaptive-optics multi-photon microscopy, and associated systems and methods
WO2018048955A1 (en) * 2016-09-06 2018-03-15 Amo Wavefront Sciences, Llc Optical measurement systems and processes with wavefront aberrometer having variable focal length lens

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE10360570B4 (de) 2003-12-22 2006-01-12 Carl Zeiss Optisches Meßsystem und optisches Meßverfahren
EP1918756B1 (de) 2006-11-06 2010-07-28 Carl Zeiss Surgical GmbH Operationsmikroskop mit OCT-System und Operationsmikroskop-Beleuchtungsmodul mit OCT-System
EP3005938A2 (en) 2008-03-19 2016-04-13 Carl Zeiss Meditec AG Surgical microscopy system having an optical coherence tomography facility
US20160360961A1 (en) * 2012-04-05 2016-12-15 Bioptigen, Inc. Optical Coherence Tomography Systems Integrated with Surgical Microscopes
WO2015017375A2 (en) * 2013-07-29 2015-02-05 Bioptigen, Inc. Procedural optical coherence tomography (oct) for surgery and related systems and methods
US9560963B2 (en) * 2013-07-29 2017-02-07 Bioptigen, Inc. Procedural optical coherence tomography (OCT) for surgery and related methods

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
Benabid et al., Laser Focus World, Band 50, September 2014, „Fiber For Fiber Lasers: Kagome PC fiber goes to extremes for ultrashortpulse lasers"

Also Published As

Publication number Publication date
US10939816B2 (en) 2021-03-09
US20190117061A1 (en) 2019-04-25
JP2019076719A (ja) 2019-05-23
JP7036700B2 (ja) 2022-03-15

Similar Documents

Publication Publication Date Title
DE102011001083B4 (de) Projektorvorrichtung mit Selbstkorrekturfunktion sowie Medizingerät mit der Projektorvorrichtung
EP2688458B1 (de) Ophthalmologisches geraet
EP2521519B1 (de) Ophthalmologisches lasersystem
DE69221806T2 (de) Vorrichtung zum Abgeben eines defokussierten Laserstrahls mit scharfkantigem Querschnitt
DE60208968T2 (de) Mit mehrfachen Brennpunkten versehenes Lasersystem für die Augenchirurgie
DE69504591T2 (de) Ophthalmologisches Gerät für Fundusbilderzeugung
DE102010055966B4 (de) Vorrichtung zur Materialbearbeitung eines Werkstücks und Verfahren zum Kalibrieren einer solchen Vorrichtung
WO2016041640A1 (de) System zur optischen kohärenztomographie, umfassend ein zoombares kepler-system
DE102005013949A1 (de) Scanvorrichtung
DE112008002405T5 (de) Photodisruptive Behandlung von kristallinen Linsen
DE112008002511T5 (de) Verfahren und Vorrichtungen für integrierte Kataraktchirurgie
EP2408410B1 (de) Lasereinrichtung für die ophthalmologie
WO2010060443A1 (de) System für die ophthalmologie oder dermatologie
DE102017207529A1 (de) Nachbehandlung bei augenchirurgischer Refraktionskorrektur
EP1758498A1 (de) Vorrichtung und verfahren zum erfassen der räumlichen lage der optischen achse eines auges
WO2017182360A1 (de) Verfahren und system zur augenbeobachtung und -therapie, insbesondere gerät zur lasergestützten kataraktchirurgie
EP3329885A1 (de) Ophthalmologische patienten-interfacevorrichtung
DE102017124545B3 (de) Mikroskop
DE102017124546A1 (de) Mikroskop
DE102014012631A1 (de) Augenchirurgiesystem
DE102014004027A1 (de) Laservorrichtung zur Bearbeitung eines Gewebes im Vorderabschnitt eines Auges
WO2010118840A1 (de) Vorrichtung und verfahren zur vermessung eines linsensystems, insbesondere eines auges
EP2443991B1 (de) Operationsmikroskop mit Vorrichtung zur intraoperativen Refraktionsmessung
DE102006053581B4 (de) Refraktives Behandlungsgerät mit Spaltbeleuchtung
DE102024105034A1 (de) Ophthalmologisches Lasertherapiesystem und -verfahren, Strahlteiler für ein Lasertherapiesystem, Verfahren und Vorrichtung zur Erzeugung von Steuerdaten sowie Softwareprodukt zum Durchführen der genannten Verfahren

Legal Events

Date Code Title Description
R012 Request for examination validly filed
R016 Response to examination communication
R018 Grant decision by examination section/examining division
R020 Patent grant now final