WO2011112120A1 - Офтальмохирургическая лазерная система на основе фемтосекундного лазера - Google Patents
Офтальмохирургическая лазерная система на основе фемтосекундного лазера Download PDFInfo
- Publication number
- WO2011112120A1 WO2011112120A1 PCT/RU2011/000128 RU2011000128W WO2011112120A1 WO 2011112120 A1 WO2011112120 A1 WO 2011112120A1 RU 2011000128 W RU2011000128 W RU 2011000128W WO 2011112120 A1 WO2011112120 A1 WO 2011112120A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- laser
- ophthalmic surgical
- focusing
- surgical laser
- radiation
- Prior art date
Links
Classifications
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61F9/00—Methods 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
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
- A61F9/00825—Methods or devices for eye surgery using laser for photodisruption
- A61F9/00827—Refractive correction, e.g. lenticle
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61F9/00—Methods 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
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
- A61F9/00825—Methods or devices for eye surgery using laser for photodisruption
- A61F9/00831—Transplantation
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61F9/00—Methods 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
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
- A61F9/00825—Methods or devices for eye surgery using laser for photodisruption
- A61F9/00836—Flap cutting
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61B—DIAGNOSIS; SURGERY; IDENTIFICATION
- A61B3/00—Apparatus for testing the eyes; Instruments for examining the eyes
- A61B3/10—Objective types, i.e. instruments for examining the eyes independent of the patients' perceptions or reactions
- A61B3/13—Ophthalmic microscopes
-
- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- 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
- A61F9/00—Methods 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
- A61F9/007—Methods or devices for eye surgery
- A61F9/008—Methods or devices for eye surgery using laser
- A61F2009/00861—Methods or devices for eye surgery using laser adapted for treatment at a particular location
- A61F2009/00872—Cornea
Definitions
- the present invention relates to laser systems for ophthalmic surgery, in particular to systems for intrastromal action on the cornea.
- Known ophthalmic laser system application EP 1880698 (A1), containing a femtosecond laser, a scanning system, a focusing system in which the focusing system contains a movable rotary mirror and a movable lens, focusing the beam of the femtosecond laser into the cornea.
- the rotary mirror and the lens with a high numerical aperture completely block the surgical field from external observation and do not allow observing the surgical field.
- the objective of the invention is the creation of a laser system based on a femtosecond laser for ophthalmic surgery, which allows direct continuous monitoring of the operation.
- an ophthalmic surgical laser system containing a femtosecond laser, a radiation delivery system, a scanning module for moving the focal point according to the selected algorithm, a focusing system, the optical elements of which are of a certain size, the projection of which onto the operation plane has boundaries, the allowed focal points of the focusing system are located outside the projection of the optical elements of the system on the plane of the operation, at least two sizes of the focal spot and d Feet for monitoring during surgery.
- the location of the allowed focal points outside the projection of the optical elements of the focusing system on the plane of the operation allows you to install a microscope and observe the surgical field without additional optical elements both in preparation for the operation and during the operation.
- the angle of incidence of the central part of the femtosecond laser radiation on the operation plane differs from the normal by an angle greater than half the aperture of the focusing system by no more than 2 °.
- the peripheral part of the beam focused by the optical elements of the focusing system falls on the cornea at an angle significantly different from the Brewster angle. This allows the operation to be performed with high accuracy, since the penetration of the beam focused into the cornea is practically independent of the polarization of the incident beam, and does not lead to deformation of the spot in the focus.
- the main element of the focusing system is an off-axis parabolic mirror with a numerical aperture of more than 0.3 and a deflection angle of less than 90 °.
- Using a parabolic mirror with a numerical aperture of less than 0.3 can lead to the emergence of a self-focusing effect in the cornea of the patient’s eye.
- a parabolic mirror with an angle of deviation of less than 90 ° allows you to focus the radiation of a femtosecond laser at a selected point in the eye with high accuracy, to scan with high focal accuracy and to directly observe the surgical field.
- a parabolic mirror as the main element of the focusing system eliminates the problems associated with the dispersion properties of materials.
- a parabolic mirror unlike lenses, does not require a complex frame that can partially overlap the surgical field from external observation, increasing the projection of optical elements on the plane of the operation, which allows you to maximize the angle of incidence of the surgical laser beam to normal, with the condition of direct observation procedures under the microscope.
- the use of a parabolic mirror makes it possible to create a lighter structure and simplify the optical design, since a rotary mirror is not required in such a design. In addition, this makes the system more reliable and easier to operate and maintain.
- the system contains a pilot laser.
- the system contains an operating microscope.
- the use of a parabolic mirror, which does not have dispersion properties, allows introducing an auxiliary tincture laser, that is, a pilot laser, into the existing system, which, coupled with observation through a microscope, facilitates the surgeon's work and makes the system more secure and predictable.
- the technical result of the invention is the creation of a safe and convenient to use system based on a femtosecond laser for ophthalmic surgery, allowing direct observation of the operation.
- the system comprises a laser 1 with a radiation wavelength of about 1050 nm and a pulse duration of about 300 fs, an attenuator 2, an energy monitor 3, an optical shutter 4, a scanning system comprising a fast scanning module 5, a scanning direction adjustment module 6, a radiation delivery system containing a line delivery 7, a beam position sensor 8, an optical shutter 9, a beam expander 10, a focusing system comprising an off-axis parabolic mirror 11 mounted on a movable base 12 connected to a two-dimensional sensor is positioned 13. All the main modules of the system are connected to the control system 14.
- the monitoring system contains a microscope 15, which is installed in the direct field of view of the operating field 16 and a video camera 17 installed through the dividing mirror 18, the video camera is connected to the display 19.
- the eye of the patient 20 is fixed with stabilization systems 21.
- the system contains a vacuum pump 22 for stabilization system 21, the foot pedal 23 is used to start / end the operation.
- the laser 1 emits laser pulses with a duration of the order of several For hundreds of femtoseconds, the radiation delivery system ensures the delivery of these pulses to the scanning system, the focusing system focuses the pulses laser into the tissue volume of the patient’s eye 20.
- the exposure area is in the line of sight of the observation system 15.
- the scanning system scans the beam according to the selected algorithm.
- a focusing system is shown, the main element of which is a movable off-axis parabolic mirror with a deflection angle of less than 90 ° and a high numerical aperture.
- a parallel scanning beam of a femtosecond laser hits a parabolic mirror 11 and focuses in the volume of tissue of the patient's eye 20.
- the angle between the incident beam and the reflected rays is approximately 70 °.
- Such a system allows focusing radiation into the volume of the patient’s eye tissue with great accuracy, since the angle of incidence is as close to normal as possible and the field of operation is in the line of sight of the observation system. This allows you to carry out various types of operations, such as the formation of a flap, intrastromal correction, the formation of a cut for implantation of a donor cornea, etc.
- parabolic mirror allows one to significantly simplify the beam focusing system of a femtosecond laser due to the lack of dispersion properties of the mirror and to establish a pilot laser, which also makes the procedure safer and more predictable.
- the present invention can be used in the design of laser systems based on a femtosecond laser for ophthalmic surgery.
Landscapes
- Health & Medical Sciences (AREA)
- Ophthalmology & Optometry (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Optics & Photonics (AREA)
- Surgery (AREA)
- Engineering & Computer Science (AREA)
- Biomedical Technology (AREA)
- Physics & Mathematics (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Transplantation (AREA)
- Laser Surgery Devices (AREA)
- Prostheses (AREA)
Abstract
Description
Claims
Priority Applications (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
CN201190000156.XU CN202682148U (zh) | 2010-03-10 | 2011-03-02 | 飞秒激光器眼外科激光*** |
DE212011100060U DE212011100060U1 (de) | 2010-03-10 | 2011-03-02 | Ophthalmochirurgisches Lasersystem mit einem femtosekunden Laser |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
RU2010108414/14A RU2423959C1 (ru) | 2010-03-10 | 2010-03-10 | Офтальмохирургическая лазерная система на основе фемтосекундного лазера |
RU2010108414 | 2010-03-10 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2011112120A1 true WO2011112120A1 (ru) | 2011-09-15 |
Family
ID=44563712
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/RU2011/000128 WO2011112120A1 (ru) | 2010-03-10 | 2011-03-02 | Офтальмохирургическая лазерная система на основе фемтосекундного лазера |
Country Status (4)
Country | Link |
---|---|
CN (1) | CN202682148U (ru) |
DE (1) | DE212011100060U1 (ru) |
RU (1) | RU2423959C1 (ru) |
WO (1) | WO2011112120A1 (ru) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2563448C1 (ru) * | 2014-05-22 | 2015-09-20 | Общество С Ограниченной Ответственностью "Оптосистемы" | Офтальмохирургическая лазерная система |
RU2582213C1 (ru) * | 2015-01-12 | 2016-04-20 | Общество с ограниченной ответственностью "Русский инженерный клуб" | Лазерный хирургический комплекс и способ его использования для выпаривания живой ткани |
CN108478280A (zh) * | 2018-05-23 | 2018-09-04 | 英诺激光科技股份有限公司 | 一种超快激光***及其应用 |
Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2242197C1 (ru) * | 2003-10-22 | 2004-12-20 | Государственное учреждение Межотраслевой научно-технический комплекс "Микрохирургия глаза" | Способ определения мощности излучения при проведении одномоментной ступенчатой комбинированной лазерной иридэктомии у лиц монголоидной расы |
RU2289153C1 (ru) * | 2005-07-04 | 2006-12-10 | Федеральное государственное унитарное предприятие Научно-исследовательский институт импульсной техники | Устройство фокусировки оптического излучения на объект |
RU2294723C2 (ru) * | 2005-02-14 | 2007-03-10 | Владимир Александрович Мачехин | Способ проведения операции персонализированного лазерного кератомилеза |
EP1880698A1 (de) * | 2006-07-21 | 2008-01-23 | SIE AG, Surgical Instrument Engineering | Ophthalmologische Vorrichtung |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS52111295A (en) | 1976-03-15 | 1977-09-17 | Mochida Pharm Co Ltd | Operational laser optical device under microscope |
US20070106285A1 (en) | 2005-11-09 | 2007-05-10 | Ferenc Raksi | Laser scanner |
-
2010
- 2010-03-10 RU RU2010108414/14A patent/RU2423959C1/ru active
-
2011
- 2011-03-02 WO PCT/RU2011/000128 patent/WO2011112120A1/ru active Application Filing
- 2011-03-02 CN CN201190000156.XU patent/CN202682148U/zh not_active Expired - Fee Related
- 2011-03-02 DE DE212011100060U patent/DE212011100060U1/de not_active Expired - Lifetime
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
RU2242197C1 (ru) * | 2003-10-22 | 2004-12-20 | Государственное учреждение Межотраслевой научно-технический комплекс "Микрохирургия глаза" | Способ определения мощности излучения при проведении одномоментной ступенчатой комбинированной лазерной иридэктомии у лиц монголоидной расы |
RU2294723C2 (ru) * | 2005-02-14 | 2007-03-10 | Владимир Александрович Мачехин | Способ проведения операции персонализированного лазерного кератомилеза |
RU2289153C1 (ru) * | 2005-07-04 | 2006-12-10 | Федеральное государственное унитарное предприятие Научно-исследовательский институт импульсной техники | Устройство фокусировки оптического излучения на объект |
EP1880698A1 (de) * | 2006-07-21 | 2008-01-23 | SIE AG, Surgical Instrument Engineering | Ophthalmologische Vorrichtung |
Also Published As
Publication number | Publication date |
---|---|
DE212011100060U1 (de) | 2012-11-15 |
RU2423959C1 (ru) | 2011-07-20 |
CN202682148U (zh) | 2013-01-23 |
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