Ophthalmological apparatus for the breakdown of eye tissue
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61B-018/18
A61F-009/008
A61F-009/009
A61B-017/30
출원번호
US-0858064
(2004-06-02)
등록번호
US-8920408
(2014-12-30)
우선권정보
EP-03405415 (2003-06-10)
발명자
/ 주소
Rathjen, Christian
출원인 / 주소
SIE AG Surgical Instrument Engineering
대리인 / 주소
Ostrolenk Faber LLP
인용정보
피인용 횟수 :
3인용 특허 :
7
초록▼
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 breakd
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.
대표청구항▼
1. An ophthalmological apparatus, comprising: a light source, anda hand-held appliance for manual application onto an eye, the hand-held appliance comprising:fastening means for fixing the hand-held appliance to the eye,a light projector, optically connected to the light source, for the focussed pro
1. An ophthalmological apparatus, comprising: a light source, anda hand-held appliance for manual application onto an eye, the hand-held appliance comprising:fastening means for fixing the hand-held appliance to the eye,a light projector, optically connected to the light source, for the focussed projection of light pulses for punctiform tissue breakdown at a focal point in the interior of the eye tissue, anda movement driver for moving the light projector such that the focal point of the punctiform tissue breakdown is moved and cuts are produced from moving the focal point of the punctiform tissue breakdown by the movement driver,wherein the movement driver and the light projector are set up and coupled such that the light projector can be moved equidistantly from a movement surface, andwherein the ophthalmological apparatus further comprises a contact body which can be mounted onto the eye and is transparent at least at some points and is designed and arranged such that it places equidistantly from the movement surface an area of the eye which is contacted in the mounted state. 2. The ophthalmological apparatus according to claim 1, wherein the movement driver and the light projector are set up and coupled such that the light projector is movable into a position in which at least a portion of the eye can be examined in top view upon fixing the hand-held appliance to the eye. 3. The ophthalmological apparatus according to claim 1, wherein the movement driver is set up to move the light projector along a translation line equidistant from the movement surface. 4. The ophthalmological apparatus according to claim 1, wherein the movement driver is set up to move the light projector about an axis of rotation normal to the movement surface. 5. The ophthalmological apparatus according to claim 1, wherein the movement driver is set up to move the light projector along a translation line equidistant from the movement surface, and in that the hand-held appliance comprises a further movement driver, which is set up to move the light projector about an axis of rotation normal to the movement surface. 6. The ophthalmological apparatus according to claim 1, wherein the ophthalmological apparatus is set up to control the spacing between the focal point and the movement surface. 7. The ophthalmological apparatus according to claim 1, wherein the ophthalmological apparatus is set up to control the position of the focal point along the axis of projection of the light pulses. 8. The ophthalmological apparatus according to claim 1, wherein the light projector comprises light-deflecting optical elements for the focussed projection of the light pulses along a scanning line. 9. The ophthalmological apparatus according to claim 1, wherein the contact body is of plane-parallel configuration. 10. The ophthalmological apparatus according to claim 1, wherein the contact body is permanently connected to the fastening means. 11. The ophthalmological apparatus according to claim 1, wherein the contact body is permanently connected to the light projector. 12. The ophthalmological apparatus according to claim 1, wherein the ophthalmological apparatus comprises a holding apparatus for removably holding the contact body. 13. The ophthalmological apparatus according to claim 1, wherein the movement driver and the light projector are set up and coupled such that the light projector can be moved equidistantly from a flat movement surface. 14. The ophthalmological apparatus according to claim 1, wherein the light source comprises a femtosecond laser. 15. The ophthalmological apparatus according to claim 14, wherein the femtosecond laser is designed as a fibre laser. 16. The ophthalmological apparatus according to claim 1, wherein the light source is connected to the light projector via an optical transport line which is designed as a photonic crystal. 17. The ophthalmological apparatus according to claim 1, wherein the fastening means are set up to fix the hand-held appliance by low pressure to the eye. 18. The ophthalmological apparatus according to claim 1, further comprising carrying means for fastening the hand-held appliance movably on an object external to the hand-held appliance. 19. The ophthalmological apparatus according to claim 1, wherein the ophthalmological apparatus is set up to move the focal point such that the tissue breakdown in the interior of the eye tissue separates from the remaining eye tissue a tissue flap which remains connected to the eye in a residual area. 20. The ophthalmological apparatus according to claim 1, wherein the ophthalmological apparatus further comprises control means for controlling the position of the focal point in such a way that the tissue breakdown in the interior of the eye tissue separates from the remaining eye tissue a tissue piece which remains connected to the eye in a residual area, the tissue piece having lateral surfaces which are produced by varying the spacing of the focal point from the movement surface. 21. The ophthalmological apparatus according to claim 1, wherein the ophthalmological apparatus is designed as a unit, which unit can be applied manually and can be fixed to the eye, and which unit comprises the light source and the light projector optically connected to the light source. 22. An ophthalmological apparatus, comprising: a light source, anda hand-held appliance for manual application onto an eye, the hand-held appliance comprising:fastening means for fixing the hand-held appliance to the eye,a light projector, optically connected to the light source, for the focussed projection of light pulses for punctiform tissue breakdown at a focal point in the interior of the eye tissue, anda movement driver for moving the light projector such that the focal point of the punctiform tissue breakdown is moved and cuts are produced from moving the focal point of the punctiform tissue breakdown by the movement driver,wherein the light source comprises an optical oscillator, and in that the optical oscillator is connected to the light projector via an optical expander, via an optical transport line and via an optical compressor, the optical transport line comprising an optical amplifier. 23. The ophthalmological apparatus according to claim 22, wherein the optical transport line is designed as a photonic crystal. 24. The ophthalmological apparatus according to claim 22, wherein the movement driver and the light projector are set up and coupled such that the light projector can be moved equidistantly from a movement surface, andwherein the ophthalmological apparatus further comprises a contact body which can be mounted onto the eye and is transparent at least at some points and is designed and arranged such that it places equidistantly from the movement surface an area of the eye which is contacted in the mounted state. 25. An ophthalmological apparatus, comprising: a light source, anda hand-held appliance for manual application onto an eye, the hand-held appliance comprising:fastening means for fixing the hand-held appliance to the eye,a light projector, optically connected to the light source, for the focussed projection of light pulses for punctiform tissue breakdown at a focal point in the interior of the eye tissue, anda movement driver for moving the light projector such that the focal point at the punctiform tissue breakdown is moved automatically and cuts are produced from moving the focal point of the punctiform breakdown by the movement driver,wherein the movement driver and the light projector are set up and coupled such that the light projector can be moved equidistantly from a movement surface, andwherein the ophthalmological apparatus further comprises a contact body which can be mounted onto the eye and is transparent at least at some points and is designed and arranged such that it places equidistantly from the movement surface an area of the eye which is contacted in the mounted state. 26. A hand-held ophthalmological apparatus comprising: fastening means for fixing the ophthalmological apparatus onto an eye,a light source,a light projector, optically connected to the light source, for the focussed projection of light pulses for punctiform tissue breakdown at a focal point in the interior of the eye tissue, anda movement driver for moving the light projector such that the focal point of the punctiform tissue breakdown is moved and cuts are produced in the interior of the eye tissue,wherein the movement driver and the light projector are set up and coupled such that the light projector can be moved equidistantly from a movement surface, andwherein the ophthalmological apparatus further comprises a contact body which can be mounted onto the eye and is transparent at least at some points and is designed and arranged such that it places equidistantly from the movement surface an area of the eye which is contacted in the mounted state.
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