Patents Assigned to SIE AG Surgical Instrument Engineering
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Patent number: 11554045Abstract: For processing eye tissue using a pulsed laser beam (L), an ophthalmological device includes a projection optical unit for the focused projection of the laser beam (L) into the eye tissue, and a scanner system upstream of the projection optical unit for the beam-deflecting scanning of the eye tissue with the laser beam (L) in a scanning movement (s?) performed over a scanning angle along a scanning line(s). The projection optical unit is tilted about an axis of rotation (q) running perpendicularly to a plane defined by the scanning line(s) and the optical axis (o) of the projection optical unit, the tilting of the projection optical unit tilting the scanning line (s) in said plane. Tilting of the scanning line(s) enables a displacement—dependent on the scanning angle—of the focus of the laser pulses projected into the eye tissue without vertical displacement of the projection optical unit.Type: GrantFiled: July 29, 2020Date of Patent: January 17, 2023Assignee: SIE AG Surgical Instrument EngineeringInventors: Christian Rathjen, Hartmut Kanngiesser, Vincent Ducry, Lorenz Klauser
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Patent number: 10758414Abstract: For processing eye tissue using a pulsed laser beam (L), an ophthalmological device includes a projection optical unit for the focused projection of the laser beam (L) into the eye tissue, and a scanner system upstream of the projection optical unit for the beam-deflecting scanning of the eye tissue with the laser beam (L) in a scanning movement (s?) performed over a scanning angle along a scanning line(s). The projection optical unit is tilted about an axis of rotation (q) running perpendicularly to a plane defined by the scanning line(s) and the optical axis (o) of the projection optical unit, the tilting of the projection optical unit tilting the scanning line (s) in said plane. Tilting of the scanning line(s) enables a displacement—dependent on the scanning angle—of the focus of the laser pulses projected into the eye tissue without vertical displacement of the projection optical unit.Type: GrantFiled: July 10, 2017Date of Patent: September 1, 2020Assignee: SIE AG Surgical Instrument EngineeringInventors: Christian Rathjen, Hartmut Kanngiesser, Vincent Ducry, Lorenz Klauser
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Patent number: 10548770Abstract: An opthalmological apparatus for the refractive correction of an eye comprises a light projector for projecting laser pulses on to a focal point in the interior of the eye in order to break down eye tissue. The apparatus further comprises a positioning module for positioning the focal point (F) at different starting points, and a scanning module for moving the focal point (F) starting from, in each case, one of the starting points in accordance with a scanning pattern for a treatment subarea (a), the scanning pattern and the starting points being defined such that in a number of treatment subareas (a) separated from one another by tissue bridges, the eye tissue is broken down.Type: GrantFiled: September 7, 2007Date of Patent: February 4, 2020Assignee: SIE AG SURGICAL INSTRUMENT ENGINEERINGInventor: Christian Rathjen
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Patent number: 10201453Abstract: An ophthalmological apparatus includes a handle for manually holding and applying the ophthalmological apparatus, fastening abilities for fixing the ophthalmological apparatus at an eye, a light source, and a light projector for the focused projection of light pulses for punctiform tissue breakdown at a focal point in the interior of the eye tissue. The ophthalmological apparatus also includes a movement driver for moving the light projector. The movement of the light projector and therefore that of the focal point with the assistance of the movement driver permits a dimensioning of the optical projection system of the light projector which is substantially smaller than in the case of an ophthalmological apparatus where the focal point is moved exclusively by an optical projection system.Type: GrantFiled: September 21, 2016Date of Patent: February 12, 2019Assignee: SIE AG Surgical Instrument EngineeringInventor: Christian Rathjen
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Patent number: 10092445Abstract: An ophthalmological apparatus includes a base station having a light source generating light pulses, and an application head mountable on an eye having a light projector for focussed projection of the light pulses for punctiform breakdown of eye tissue. The application head has movement drivers moving the light projector in a feed direction and a first scanning direction. A scanner in the base station deflects the light pulses in a second scanning direction. The ophthalmological apparatus includes an optical transmission system transmitting deflected light pulses from the base station to the application head, and superimposing the light pulses deflected in the second scanning direction onto the movement of the light projector in the first scanning direction. Light sources with high light pulse rates, for example femtosecond lasers may be used, without impractical enlargement of the size of the application head.Type: GrantFiled: July 8, 2016Date of Patent: October 9, 2018Assignee: SIE AG SURGICAL INSTRUMENT ENGINEERINGInventors: Christian Rathjen, Wolfgang Zesch, Karl Michael Deyerler, Holger Lubatschowski, Tammo Ripken
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Patent number: 9737436Abstract: For processing eye tissue using a pulsed laser beam (L), an ophthalmological device includes a projection optical unit for the focused projection of the laser beam (L) into the eye tissue, and a scanner system upstream of the projection optical unit for the beam-deflecting scanning of the eye tissue with the laser beam (L) in a scanning movement (s?) performed over a scanning angle along a scanning line(s). The projection optical unit is tilted about an axis of rotation (q) running perpendicularly to a plane defined by the scanning line(s) and the optical axis (o) of the projection optical unit, the tilting of the projection optical unit tilting the scanning line (s) in said plane. Tilting of the scanning line(s) enables a displacement—dependent on the scanning angle—of the focus of the laser pulses projected into the eye tissue without vertical displacement of the projection optical unit.Type: GrantFiled: November 21, 2012Date of Patent: August 22, 2017Assignee: SIE AG, Surgical Instrument EngineeringInventors: Christian Rathjen, Hartmut Kanngiesser, Vincent Ducry, Lorenz Klauser
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Patent number: 9566190Abstract: For processing eye tissue using a pulsed laser beam (L), an ophthalmological device includes a projection optical unit for the focused projection of the laser beam (L) into the eye tissue, and a scanner system upstream of the projection optical unit for the beam-deflecting scanning of the eye tissue with the laser beam (L) in a scanning movement (s?) performed over a scanning angle along a scanning line (s). The ophthalmological device includes a divergence modulator disposed upstream of the scanner system for dynamically varying the divergence of the laser beam (L), whereby the scanning line (s) is tilted in a plane running through the optical axis of the projection optical unit and the scanning line(s). The tilting of the scanning line(s) enables a displacement—dependent on the scanning angle—of the focus of the laser pulses projected into the eye tissue without vertical displacement of the projection optical unit.Type: GrantFiled: November 19, 2012Date of Patent: February 14, 2017Assignee: SIE AG, Surgical Instrument EngineeringInventors: Christian Rathjen, Hartmut Kanngiesser, Vincent Ducry, Lorenz Klauser
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Patent number: 9468559Abstract: An ophthalmological apparatus includes a handle for manually holding and applying the ophthalmological apparatus, fastening abilities for fixing the ophthalmological apparatus at an eye, a light source, and a light projector for the focused projection of light pulses for punctiform tissue breakdown at a focal point in the interior of the eye tissue. The ophthalmological apparatus also includes a movement driver for moving the light projector. The movement of the light projector and therefore that of the focal point with the assistance of the movement driver permits a dimensioning of the optical projection system of the light projector which is substantially smaller than in the case of an ophthalmological apparatus where the focal point is moved exclusively by an optical projection system.Type: GrantFiled: November 21, 2014Date of Patent: October 18, 2016Assignee: SIE AG SURGICAL INSTRUMENT ENGINEERINGInventor: Christian Rathjen
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Patent number: 9414963Abstract: An ophthalmological apparatus includes a base station having a light source generating light pulses, and an application head mountable on an eye having a light projector for focussed projection of the light pulses for punctiform breakdown of eye tissue. The application head has movement drivers moving the light projector in a feed direction and a first scanning direction. A scanner in the base station deflects the light pulses in a second scanning direction. The ophthalmological apparatus includes an optical transmission system transmitting deflected light pulses from the base station to the application head, and superimposing the light pulses deflected in the second scanning direction onto the movement of the light projector in the first scanning direction. Light sources with high light pulse rates, for example femtosecond lasers may be used, without impractical enlargement of the size of the application head.Type: GrantFiled: December 20, 2012Date of Patent: August 16, 2016Assignee: SIE AG SURGICAL INSTRUMENT ENGINEERINGInventors: Christian Rathjen, Wolfgang Zesch, Karl Michael Deyerler, Holger Lubatschowski, Tammo Ripken
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Patent number: 9411938Abstract: A computer-aided system include a data storage (18) with eye data (181), which defines a three-dimensional model of the eye, and a reference generator (113) for defining and storing a geometric reference in relation to the three-dimensional model of the eye. The system additionally includes a cut surface editor for defining and positioning cut surfaces in the three-dimensional model of the eye based on user instructions. Finally, the system includes a cut pattern generator (117) for, based on the positioned cut surfaces, generating and storing three-dimensional cut patterns for defining tissue cuts to be executed in a human eye by means of femtosecond laser pulses. The generation of a three-dimensional cut pattern permits the user to define tissue cuts made possible by femtosecond laser pulses in a targeted and efficient fashion in the three-dimensional model of the eye without having to undertake manipulations directly on the eye for this purpose.Type: GrantFiled: March 25, 2010Date of Patent: August 9, 2016Assignee: SIE AG, SURGICAL INSTRUMENT ENGINEERINGInventor: Christian Rathjen
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Patent number: 9017315Abstract: For processing eye tissue (8) by means of femtosecond laser pulses, an ophthalmological device (1) includes a projection optical unit (2) for the focused projection of the femtosecond laser pulses into the eye tissue (8). Disposed upstream of the projection optical unit (2) is a first beam-deflecting scanner system (3) for scanning the eye tissue (8) with the femtosecond laser pulses along a processing line (s). A second beam-deflecting scanner system (5) is disposed upstream of the first scanner system (3) and is designed for scanning the eye tissue (8) with the femtosecond laser pulses on a scanning curve (f) superimposed on the processing line (s). The second scanner system (5) has a scanner speed that is a multiple of the scanning speed of the first scanner system (3), and comprises at least one deflection mirror, a first scanning axis (51) and a second scanning axis (52).Type: GrantFiled: July 27, 2011Date of Patent: April 28, 2015Assignee: SIE AG, Surgical Instrument EngineeringInventor: Christian Rathjen
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Patent number: 8998416Abstract: An opthalmological apparatus includes a base station having a light source for generating light pulses, and an application head mountable on an eye having a light projector for the focussed projection of the light pulses for punctiform breakdown of eye tissue. The application head has drivers for moving the light projector in a feed direction and in a first scanning direction. A scanner is arranged in the base station in order to deflect the light pulses in a second scanning direction. The opthalmological apparatus includes an optical transmission system for transmitting deflected light pulses from the base station to the application head, and for superimposing the light pulses deflected in the second scanning direction onto the movement of the light projector in the first scanning direction.Type: GrantFiled: March 23, 2012Date of Patent: April 7, 2015Assignee: Sie AG Surgical Instrument EngineeringInventors: Christian Rathjen, Wolfgang Zesch, Karl Michael Deyerler, Holger Lubatschowski, Tammo Ripken
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Patent number: 8979264Abstract: For deflecting a laser beam (200) with a deflection mirror (21) arranged displaceably about a rotation axis (c), a beam-shaping optical element (22) is disposed upstream of the deflection mirror (21), said optical element being designed to project the laser beam (200) onto the deflection mirror (21) with a beam width that is reduced in the direction of the rotation axis (c). The deflection mirror (21) has a mirror width which is oriented in the direction of the rotation axis (c) and which is narrower than an unreduced input beam width of the laser beam (200) upstream of the beam-shaping optical element (22). Moreover, a beam-shaping optical element (23) is disposed downstream of the deflection mirror (21), said optical element forwarding the laser beam (202) from the deflection mirror (21) with a beam width corresponding to the unreduced input beam width.Type: GrantFiled: September 11, 2009Date of Patent: March 17, 2015Assignee: SIE AG, Surgical Instrument EngineeringInventor: Christian Rathjen
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Patent number: 8920408Abstract: An ophthalmological apparatus includes a handle for manually holding and applying the ophthalmological apparatus, fastening has abilities for fixing the ophthalmological apparatus at an eye, a light source, and a light projector for the focused projection of light pulses for punctiform tissue breakdown at a focal point in the interior of the eye tissue. The ophthalmological apparatus also includes a movement driver for moving the light projector. The movement of the light projector and therefore that of the focal point with the assistance of the movement driver permits a dimensioning of the optical projection system of the light projector which is substantially smaller than in the case of an ophthalmological apparatus where the focal point is moved exclusively by an optical projection system.Type: GrantFiled: June 2, 2004Date of Patent: December 30, 2014Assignee: SIE AG Surgical Instrument EngineeringInventor: Christian Rathjen
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Patent number: 8746881Abstract: For processing eye tissue (8) by means of femtosecond laser pulses, an ophthalmological device (1) includes a projection optical unit (2) for the focused projection of the femtosecond laser pulses into the eye tissue (8). Disposed upstream of the projection optical unit (2) is a first beam-deflecting scanner system (3) for scanning the eye tissue (8) with the femtosecond laser pulses along a processing line. A second beam-deflecting scanner system (5) is disposed upstream of the first scanner system (3) and is designed for scanning the eye tissue (8) with the femtosecond laser pulses in a scanning movement superimposed on the processing line and running in a deflection plane. The second scanner system (5) has a scanner speed that is a multiple of the scanning speed of the first scanner system (3). A rotation system is provided for aligning the deflection plane with a defined angle with respect to the processing line.Type: GrantFiled: July 27, 2011Date of Patent: June 10, 2014Assignee: SIE AG, Surgical Instrument EngineeringInventor: Christian Rathjen
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Patent number: 8360579Abstract: An opthalmological apparatus (1) comprises a base station (11) having a light source (51) for generating light pulses, and an application head (3) which can be mounted on an eye (2) having a light projector (58) for the focussed projection of the light pulses for punctiform breakdown of eye tissue (22). The application head (3) additionally has movement drivers (57) for moving the light projector (58) in a feed direction and in a first scanning direction. A scanner (52) is arranged in the base station (11) in order to deflect the light pulses in a second scanning direction. In addition, the opthalmological apparatus (1) comprises an optical transmission system for transmitting deflected light pulses from the base station (11) to the application head (3), and for superimposing the light pulses deflected in the second scanning direction onto the movement of the light projector (58) in the first scanning direction.Type: GrantFiled: October 7, 2009Date of Patent: January 29, 2013Assignee: Sie AG Surgical Instrument EngineeringInventors: Christian Rathjen, Wolfgang Zesch, Karl Michael Deyerler, Holger Lubatschowski, Tammo Ripken
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Publication number: 20120239014Abstract: An opthalmological apparatus includes a base station having a light source for generating light pulses, and an application head mountable on an eye having a light projector for the focussed projection of the light pulses for punctiform breakdown of eye tissue. The application head has drivers for moving the light projector in a feed direction and in a first scanning direction. A scanner is arranged in the base station in order to deflect the light pulses in a second scanning direction. The opthalmological apparatus includes an optical transmission system for transmitting deflected light pulses from the base station to the application head, and for superimposing the light pulses deflected in the second scanning direction onto the movement of the light projector in the first scanning direction.Type: ApplicationFiled: March 23, 2012Publication date: September 20, 2012Applicant: SIE AG Surgical Instrument EngineeringInventors: Christian Rathjen, Wolfgang Zesch, Karl Michael Deyerler, Holger Lubatschowski, Tammo Ripken
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Patent number: 8177365Abstract: An opthalmological apparatus (1) comprises a base station (11) having a light source (51) for generating light pulses, and an application head (3) which can be mounted on an eye (2) having a light projector (58) for the focussed projection of the light pulses for punctiform breakdown of eye tissue (22). The application head (3) additionally has movement drivers (57) for moving the light projector (58) in a feed direction and in a first scanning direction. A scanner (52) is arranged in the base station (11) in order to deflect the light pulses in a second scanning direction. In addition, the opthalmological apparatus (1) comprises an optical transmission system for transmitting deflected light pulses from the base station (11) to the application head (3), and for superimposing the light pulses deflected in the second scanning direction onto the movement of the light projector (58) in the first scanning direction.Type: GrantFiled: October 7, 2009Date of Patent: May 15, 2012Assignee: Sie AG Surgical Instrument EngineeringInventors: Christian Rathjen, Wolfgang Zesch, Karl Michael Deyerler, Holger Lubatschowski, Tammo Ripken
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Publication number: 20100076418Abstract: An opthalmological apparatus (1) comprises a base station (11) having a light source (51) for generating light pulses, and an application head (3) which can be mounted on an eye (2) having a light projector (58) for the focussed projection of the light pulses for punctiform breakdown of eye tissue (22). The application head (3) additionally has movement drivers (57) for moving the light projector (58) in a feed direction and in a first scanning direction. A scanner (52) is arranged in the base station (11) in order to deflect the light pulses in a second scanning direction. In addition, the opthalmological apparatus (1) comprises an optical transmission system for transmitting deflected light pulses from the base station (11) to the application head (3), and for superimposing the light pulses deflected in the second scanning direction onto the movement of the light projector (58) in the first scanning direction.Type: ApplicationFiled: October 7, 2009Publication date: March 25, 2010Applicant: SIE AG SURGICAL INSTRUMENT ENGINEERINGInventors: Christian Rathjen, Wolfgang Zesch, Karl Michael Deyerler, Holger Lubatschowski, Tammo Ripken
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Publication number: 20100049175Abstract: An opthalmological apparatus (1) comprises a base station (11) having a light source (51) for generating light pulses, and an application head (3) which can be mounted on an eye (2) having a light projector (58) for the focussed projection of the light pulses for punctiform breakdown of eye tissue (22). The application head (3) additionally has movement drivers (57) for moving the light projector (58) in a feed direction and in a first scanning direction. A scanner (52) is arranged in the base station (11) in order to deflect the light pulses in a second scanning direction. In addition, the opthalmological apparatus (1) comprises an optical transmission system for transmitting deflected light pulses from the base station (11) to the application head (3), and for superimposing the light pulses deflected in the second scanning direction onto the movement of the light projector (58) in the first scanning direction.Type: ApplicationFiled: October 7, 2009Publication date: February 25, 2010Applicant: SIE AG SURGICAL INSTRUMENT ENGINEERINGInventors: Christian Rathjen, Wolfgang Zesch, Michael Karl Deyerler, Holger Lubatschowski, Tammo Ripken