Ophthalmological apparatus for the breakdown of eye tissue
원문보기
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
A61F-009/009
A61F-009/008
A61B-017/30
출원번호
US-0550756
(2014-11-21)
등록번호
US-9468559
(2016-10-18)
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 :
1인용 특허 :
9
초록▼
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
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.
대표청구항▼
1. An ophthalmological apparatus, comprising: a light source, and an appliance for manual application onto an eye of a patient, the appliance comprising: fastening means configured to fix the appliance on the eye of the patient,a light projector, optically connected to the light source, for a focuse
1. An ophthalmological apparatus, comprising: a light source, and an appliance for manual application onto an eye of a patient, the appliance comprising: fastening means configured to fix the appliance on the eye of the patient,a light projector, optically connected to the light source, for a focused projection of light pulses for punctiform tissue breakdown at a focal point in the interior of the eye tissue of the eye of the patient, and having a projection axis, anda movement driver configured to mechanically move the light projector and its projection axis, relative to the eye of the patient, with the appliance being fixed on the eye of the patient, to move the focal point of the punctiform tissue breakdown and thereby produce cuts in the eye of the patient by moving said focal point˜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. 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 appliance on 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 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 ophthalmological apparatus 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. 10. The ophthalmological apparatus according to claim 9, wherein the contact body is of plane-parallel configuration. 11. The ophthalmological apparatus according to claim 9, wherein the contact body is permanently connected to the fastening means. 12. The ophthalmological apparatus according to claim 9, wherein the contact body is permanently connected to the light projector. 13. The ophthalmological apparatus according to claim 9, wherein the ophthalmological apparatus comprises a holding apparatus for removably holding the contact body. 14. 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. 15. The ophthalmological apparatus according to claim 1, wherein the light source comprises a femtosecond laser. 16. The ophthalmological apparatus according to claim 15, wherein the femtosecond laser is designed as a fibre laser. 17. 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. 18. The ophthalmological apparatus according to claim 1, 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. 19. The ophthalmological apparatus according to claim 18, wherein the optical transport line is designed as a photonic crystal. 20. The ophthalmological apparatus according to claim 1, wherein the fastening means are set up to fix the appliance by low pressure to the eye. 21. 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. 22. 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. 23. An ophthalmological apparatus comprising— a light source, andan appliance for manual application onto an eye of a patient, the appliance comprising:fastening means configured to fix the appliance on the eye of the patient,a light projector, optically connected to the light source, for a focused projection of light pulses for punctiform tissue breakdown at a focal point in the interior of the eye tissue of the eye of the patient, and having a projection axis, anda movement driver configured to mechanically move the light projector and its projection axis, relative to the eye of the patient, with the appliance being fixed on the eye of the patient, to move the focal point of the punctiform tissue breakdown and thereby produce cuts in the eye of the patient by moving said focal point,wherein the ophthalmological apparatus further comprises carrying means for fastening the appliance movably on an object external to the appliance. 24. 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.
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