Patents Assigned to Technolas GmbH Ophthalmologische Systeme
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Patent number: 7022119Abstract: A compact excimer laser system is provided that includes argon fluoride laser gas, electronic, and laser head all compactly arranged such that the patient bed can rotate over all of these components. This allows the patient bed to be rotated for easy egress of the patient without striking the head against an optical extension through which the excimer laser is fired onto the patient's eye. Further, an automated lamellar keratoplasty system is incorporated into the electronics and components of the laser system so that laser in situ keratomileusis can be easily performed.Type: GrantFiled: April 25, 2003Date of Patent: April 4, 2006Assignee: Technolas GmbH Ophthalmologische SystemeInventor: Kristian Hohla
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Patent number: 6635051Abstract: A apparatus and method for controlling an apparatus for removing tissue from the eye performs various types of corrections using a relatively large beam, but oscillating, or dithering, that being to prevent reinforcing ridges from being formed during the tissue removal process. Further, various types of correction, such as hyperopia and astigmatism correction, are performed using a large beam that is scanned over the area to be ablated using overlapping shots. Further, the epithelium in the area to be treated is removed using an infrared fluorescent dye to dye the epithelium, and then observing the fluorescent patterns from the epithelium area to be removed. Once a certain area is no longer fluorescent after laser shots, smaller shots are then applied, selectively removing the epithelium from the remaining regions. Again, the fluorescence patterns are observed, and the process is repeated until no epithelium remains.Type: GrantFiled: May 5, 2000Date of Patent: October 21, 2003Assignee: Technolas GmbH Ophthalmologische SystemeInventor: Kristian Hohla
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Patent number: 6575962Abstract: A apparatus and method for controlling an apparatus for removing tissue from the eye performs various types of corrections using a relatively large beam, but oscillating, or dithering, that being to prevent reinforcing ridges from being formed during the tissue removal process. Further, various types of correction, such as hyperopia and astigmatism correction, are performed using a large beam that is scanned over the area to be ablated using overlapping shots. Further, the epithelium in the area to be treated is removed using an infrared fluorescent dye to dye the epithelium, and then observing the fluorescent patterns from the epithelium area to be removed. Once a certain area is no longer fluorescent after laser shots, smaller shots are then applied, selectively removing the epithelium from the remaining regions. Again, the fluorescence patterns are observed, and the process is repeated until no epithelium remains.Type: GrantFiled: October 21, 1998Date of Patent: June 10, 2003Assignee: Technolas GmbH Ophthalmologische SystemeInventor: Kristian Hohla
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Patent number: 6090100Abstract: A apparatus and method for controlling an apparatus for removing tissue from the eye performs various types of corrections using a relatively large beam, but oscillating, or dithering, that being to prevent reinforcing ridges from being formed during the tissue removal process. Further, various types of correction, such as hyperopia and astigmatism correction, are performed using a large beam that is scanned over the area to be ablated using overlapping shots. Further, the epithelium in the area to be treated is removed using an infrared fluorescent dye to dye the epithelium, and then observing the fluorescent patterns from the epithelium area to be removed. Once a certain area is no longer fluorescent after laser shots, smaller shots are then applied, selectively removing the epithelium from the remaining regions. Again, the fluorescence patterns are observed, and the process is repeated until no epithelium remains.Type: GrantFiled: October 18, 1994Date of Patent: July 18, 2000Assignee: Chiron Technolas GmbH Ophthalmologische SystemeInventor: Kristian Hohla
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Patent number: 6059774Abstract: The apparatus and the method of ablating matter from a substrate using a laser, an optical system, and a screen arranged within the beam path of the laser. A laser spot is formed which exhibits light and dark sections. By adjusting the screen before each laser pulse, the entire surface area of the laser spot is subjected to the same number of laser pulses.Type: GrantFiled: August 11, 1997Date of Patent: May 9, 2000Assignee: Chiron Technolas GmbH Ophthalmologische SystemeInventor: Kristian Hohla
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Patent number: 5827264Abstract: A apparatus and method for controlling an apparatus for removing tissue from the eye performs various types of corrections using a relatively large beam, but oscillating, or dithering, that being to prevent reinforcing ridges from being formed during the tissue removal process. Further, various types of correction, such as hyperopia and astigmatism correction, are performed using a large beam that is scanned over the area to be ablated using overlapping shots. Further, the epithelium in the area to be treated is removed using an infrared fluorescent dye to dye the epithelium, and then observing the fluorescent patterns from the epithelium area to be removed. Once a certain area is no longer fluorescent after laser shots, smaller shots are then applied, selectively removing the epithelium from the remaining regions. Again, the fluorescence patterns are observed, and the process is repeated until no epithelium remains.Type: GrantFiled: June 7, 1995Date of Patent: October 27, 1998Assignee: Chiron Technolas GmbH Ophthalmologische SystemeInventor: Kristian Hohla
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Patent number: 5683379Abstract: An apparatus for removing tissue from the eye performs various types of corrections using a relatively large beam, but oscillated or dithered to prevent the formation of ridges during the removal process. Various types of corrections are contemplated such as hyperopic and astigmatic using a large beam which is scanned over the area to be ablated using overlapping shots which are between 10% and 90% of the area of the total area to be ablated.Type: GrantFiled: November 16, 1994Date of Patent: November 4, 1997Assignee: Chiron Technolas GmbH Ophthalmologische SystemeInventor: Kristian Hohla
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Patent number: 5634920Abstract: A apparatus and method for controlling an apparatus for removing tissue from the eye performs various types of corrections using a relatively large beam, but oscillating, or dithering, that being to prevent reinforcing ridges from being formed during the tissue removal process. Further, various types of correction, such as hyperopia and astigmatism correction, are performed using a large beam that is scanned over the area to be ablated using overlapping shots. Further, the epithelium in the area to be treated is removed using an infrared fluorescent dye to dye the epithelium, and then observing the fluorescent patterns from the epithelium area to be removed. Once a certain area is no longer fluorescent after laser shots, smaller shots are then applied, selectively removing the epithelium from the remaining regions. Again, the fluorescence patterns are observed, and the process is repeated until no epithelium remains.Type: GrantFiled: June 7, 1995Date of Patent: June 3, 1997Assignee: Chiron Technolas GmbH Ophthalmologische SystemeInventor: Kristian Hohla
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Patent number: 5620436Abstract: A method and apparatus for providing more precise aiming by an eye tracking system, including a registration, or aiming, laser, that provides for precise location of where the next laser ablation shot will impinge upon the eye. The method and apparatus further includes an aiming assistance fixture that provides a fixed frame of reference for locating the origin of the eye.Type: GrantFiled: June 28, 1996Date of Patent: April 15, 1997Assignee: Chiron Technolas GmbH Ophthalmologische SystemeInventors: Stefan Lang, David R. Clonts
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Patent number: D404811Type: GrantFiled: May 30, 1996Date of Patent: January 26, 1999Assignee: Chiron Technolas GmbH Ophthalmologische SystemeInventor: Kristian Hohla