WO2003049656A2 - Verfahren zum entfernen von abprodukten, die beim materialabtrag in transparenten objekten durch laserinduzierte plamabildung entstehen - Google Patents
Verfahren zum entfernen von abprodukten, die beim materialabtrag in transparenten objekten durch laserinduzierte plamabildung entstehen Download PDFInfo
- Publication number
- WO2003049656A2 WO2003049656A2 PCT/EP2002/014055 EP0214055W WO03049656A2 WO 2003049656 A2 WO2003049656 A2 WO 2003049656A2 EP 0214055 W EP0214055 W EP 0214055W WO 03049656 A2 WO03049656 A2 WO 03049656A2
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- waste products
- channel
- removal
- laser
- created
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K26/00—Working by laser beam, e.g. welding, cutting or boring
- B23K26/14—Working by laser beam, e.g. welding, cutting or boring using a fluid stream, e.g. a jet of gas, in conjunction with the laser beam; Nozzles therefor
- B23K26/1462—Nozzles; Features related to nozzles
-
- 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 invention relates to a method for removing waste products that arise during the removal of material in transparent objects by laser-induced plasma formation, in particular in the intrastromal ablation of tissue from the cornea of the eye for ametropia correction.
- Heisterkamp et al "Application of ultrashort laser pulses for intrastromal refractive surgery," Graefes Arch Clin Exp Ophthalmol 238 (1), 2000 , 33-9; G. Maatz, A. Heisterkamp, H. Lubatschowski et al: "Chemical and physical side effects at application of ultrashort laser pulses for intrastromal refractive surgery," J. Opt. A: Pure Appl. Opt 2 , 2000, 59-64; A. Vogel, J. Noack, K. Hahen et al: "Laser-induced breakdown in the eye at pulse durations from 8 0 ns to 1 00 fs, "SPIE- Proceedings, Vol.
- the thickness and curvature of the cornea can be changed without at least mechanically affecting the cornea in the central area of the eye.
- the incision of the cornea means permanent extensive damage. Errors when folding back the flap essentially determine the achievable quality of the optical correction.
- the incision of the cornea greatly changes its mechanical properties. This can lead to the fact that a measurement of the intraocular pressure using the usual applanation tonometry can lead to completely wrong values.
- C. Knapp, H. Mittelviefhaus "Almost blindness after LASIK, poster for the 99th conference of the German Ophthalmological Society, Berlin, September 29 - January 2, 2001, a case was demonstrated in which glaucoma was overlooked in this way, which led to a massive Eye damage resulted.
- the object of the invention is therefore to remove waste products arising in laser-induced plasma formation in transparent objects as quickly as possible and with little damage.
- At least one channel preferably with a capillary diameter, is created or opened between the removal area of the laser material processing inside the object and its outer surface for a free or forced discharge of the solid, liquid or gaseous waste products resulting from plasma formation.
- at least a small channel that deliberately affects the object or its surface only in capillary size is accepted in order to extract the waste products formed during the plasma formation from the interior of the object without further mechanical damage to the object, which is particularly important for the cornea of the Eye is significant.
- the surface of the cornea is not mechanically processed to change its shape are needed, but a defined material removal in the cornea is possible even with plasma formation of the material to be removed, the waste products escaping freely or forcedly without the cornea having to be cut open over a large area.
- the at least one capillary channel can, for example, be created peripherally in such a way that it does not, or at least not noticeably, impair the eyesight of the treated eye. It has been shown that at least one disposal channel of the said small size is sufficient for removing the waste products.
- a forced exit of the waste products can be forced, for example, by mechanical pressure on the cornea. Other possibilities arise, inter alia, in the use of suction and flushing devices or expulsion gas or in the combination thereof.
- At least one channel for removing the waste products at least one channel (also of small size) is provided for introducing media, such as expulsion gas or flushing liquid, into the removal area of the object.
- Fig.! shows the removal of waste products during intrastromal plasma generation in the cornea of the eye by introducing media under pressure and squeezing out the media including the waste products.
Landscapes
- Health & Medical Sciences (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Ophthalmology & Optometry (AREA)
- Surgery (AREA)
- Nuclear Medicine, Radiotherapy & Molecular Imaging (AREA)
- Mechanical Engineering (AREA)
- Plasma & Fusion (AREA)
- Biomedical Technology (AREA)
- Heart & Thoracic Surgery (AREA)
- Vascular Medicine (AREA)
- Life Sciences & Earth Sciences (AREA)
- Animal Behavior & Ethology (AREA)
- General Health & Medical Sciences (AREA)
- Public Health (AREA)
- Veterinary Medicine (AREA)
- Laser Surgery Devices (AREA)
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2003550707A JP2005511204A (ja) | 2001-12-12 | 2002-12-11 | レーザー・ブレイクダウン・プラズマ生成を用いて透明な物体内の物質を除去している間に生成した廃棄物を除去するための方法 |
US10/498,395 US20050090813A1 (en) | 2001-12-12 | 2002-12-11 | Method for removing waste products produced while stripping material in transparent objects by laser-induced plasma formation |
EP02804587A EP1453444A1 (de) | 2001-12-12 | 2002-12-11 | Verfahren zum entfernen von abprodukten, die beim materialabtrag in transparenten objekten durch laserinduzierte plamabildung entstehen |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE10162166A DE10162166A1 (de) | 2001-12-12 | 2001-12-12 | Verfahren zum Entfernen von Abprodukten, die beim Materialabtrag in transparenten Objekten durch laserinduzierte Plasmabildung entstehen |
DE10162166.3 | 2001-12-12 |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2003049656A2 true WO2003049656A2 (de) | 2003-06-19 |
Family
ID=7709667
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/EP2002/014055 WO2003049656A2 (de) | 2001-12-12 | 2002-12-11 | Verfahren zum entfernen von abprodukten, die beim materialabtrag in transparenten objekten durch laserinduzierte plamabildung entstehen |
Country Status (5)
Country | Link |
---|---|
US (1) | US20050090813A1 (de) |
EP (1) | EP1453444A1 (de) |
JP (1) | JP2005511204A (de) |
DE (1) | DE10162166A1 (de) |
WO (1) | WO2003049656A2 (de) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013004255A1 (de) * | 2011-07-04 | 2013-01-10 | Wavelight Gmbh | Vorrichtung und verfahren für ein lasergestützes augenchirurgisches behandlungssystem |
Families Citing this family (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20050064137A1 (en) * | 2003-01-29 | 2005-03-24 | Hunt Alan J. | Method for forming nanoscale features and structures produced thereby |
DE10334109A1 (de) * | 2003-07-25 | 2005-02-17 | Carl Zeiss Meditec Ag | Verfahren und Vorrichtung zum Ausbilden von Schnittflächen in einem transparenten Material |
EP2197400B1 (de) * | 2007-09-05 | 2014-12-31 | Alcon LenSx, Inc. | Laserinduziertes schutzschild in der laserchirurgie |
DE112008002405T5 (de) * | 2007-09-06 | 2010-06-24 | LenSx Lasers, Inc., Aliso Viejo | Photodisruptive Behandlung von kristallinen Linsen |
US9456925B2 (en) | 2007-09-06 | 2016-10-04 | Alcon Lensx, Inc. | Photodisruptive laser treatment of the crystalline lens |
WO2009033111A2 (en) * | 2007-09-06 | 2009-03-12 | Lensx Lasers, Inc. | Precise targeting of surgical photodisruption |
WO2009036104A2 (en) * | 2007-09-10 | 2009-03-19 | Lensx Lasers, Inc. | Effective laser photodisruptive surgery in a gravity field |
WO2009039302A2 (en) * | 2007-09-18 | 2009-03-26 | Lensx Lasers, Inc. | Methods and apparatus for integrated cataract surgery |
WO2009039315A2 (en) * | 2007-09-18 | 2009-03-26 | Lensx Lasers, Inc. | Methods and apparatus for laser treatment of the crystalline lens |
ES2390315T3 (es) * | 2007-11-02 | 2012-11-08 | Alcon Lensx, Inc. | Aparato para unas prestaciones ópticas oculares posoperatorias mejoradas |
PT2926780T (pt) | 2008-01-09 | 2018-11-07 | Alcon Lensx Inc | Fragmentação de tecido por laser fotodisruptivo |
WO2016122821A2 (en) | 2015-01-29 | 2016-08-04 | Imra America, Inc. | Laser-based modification of transparent materials |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5993438A (en) * | 1993-11-12 | 1999-11-30 | Escalon Medical Corporation | Intrastromal photorefractive keratectomy |
DE19852574A1 (de) * | 1998-11-06 | 2000-05-11 | Aesculap Meditec Gmbh | Medizinisches Instrument zur Phakoemulsifikation |
US6344040B1 (en) * | 1999-03-11 | 2002-02-05 | Intralase Corporation | Device and method for removing gas and debris during the photodisruption of stromal tissue |
DE19940712A1 (de) * | 1999-08-26 | 2001-03-01 | Aesculap Meditec Gmbh | Verfahren und Vorrichtung zur Behandlung von Trübungen und/oder Verhärtungen eines ungeöffneten Auges |
AT410055B (de) * | 1999-08-31 | 2003-01-27 | Austrian Laser Produktion Und | Laserskalpell |
-
2001
- 2001-12-12 DE DE10162166A patent/DE10162166A1/de not_active Ceased
-
2002
- 2002-12-11 JP JP2003550707A patent/JP2005511204A/ja active Pending
- 2002-12-11 US US10/498,395 patent/US20050090813A1/en not_active Abandoned
- 2002-12-11 EP EP02804587A patent/EP1453444A1/de not_active Withdrawn
- 2002-12-11 WO PCT/EP2002/014055 patent/WO2003049656A2/de active Application Filing
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2013004255A1 (de) * | 2011-07-04 | 2013-01-10 | Wavelight Gmbh | Vorrichtung und verfahren für ein lasergestützes augenchirurgisches behandlungssystem |
CN103648450A (zh) * | 2011-07-04 | 2014-03-19 | 威孚莱有限公司 | 用于激光辅助的眼部外科治疗系统的装置及方法 |
AU2011372762B2 (en) * | 2011-07-04 | 2015-05-14 | Alcon Inc. | Device and method for a laser-assisted eye surgery treatment system |
US10779989B2 (en) | 2011-07-04 | 2020-09-22 | Alcon Inc. | Device and method for a laser-assisted eye-surgery treatment system |
Also Published As
Publication number | Publication date |
---|---|
US20050090813A1 (en) | 2005-04-28 |
DE10162166A1 (de) | 2003-06-18 |
EP1453444A1 (de) | 2004-09-08 |
JP2005511204A (ja) | 2005-04-28 |
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