US4865441A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus using a laser for treating the eye
Assignee: G Rodenstock Instrumente GmbH
•
Filing: 1988-07-22
•
Granted: 1989-09-12
•
Expires: 2008-07-22
Abstract
Abstract An apparatus utilizing a laser for treating the eye of a patient in either a seated or supine position. The apparatus includes a slit lamp device having integrated laser beam guidance for examination and treatment of seated patients and a support element attachable to the casing of the microscope of the slit lamp device and carrying lens groups for and a deflection device for modifying the beam path and which enable bending of the laser beam, illumination beam and the observation beam path to the eye to be treated when the patient is in a supine position.
Inventors
- 👤 Werner Reis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:36
CPC Classifications
A; A61; A61F; A61F9/00; A61F9/007; A61F9/008
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
169 words
An apparatus for using a laser to treat the eye of a patient in one of a seated or supine position, comprising: a slit lamp device for examination and treatment of a seated patient, microscope for observation, an illumination system, means for coupling laser light to the slit lamp device for enabling treatment of the eye of the patient, and position treatment means for enabling treatment of the patient with the laser light when the patient is in one of a seated and supine position, the position treating means including support means for detachable attachment to the microscope, and an optical system for modifying a beam path of the slit lamp device including a beam deflection element, the optical system and beam deflection element being coupled to the supporting means so as to enable the beam path of the slit lamp device facing the patient to be elongated in a horizontal direction and deflected downwardly to the eye of the patient when the patient is in a supine position.
Claim 2
Independent Claim
169 words
An apparatus for using a laser to treat the eye of a patient in one of a seated or supine position, comprising: a slit lamp device for examination and treatment of a seated patient, microscope for observation, an illumination system, means for coupling laser light to the slit lamp device for enabling treatment of the eye of the patient, and position treatment means for enabling treatment of the patient with the laser light when the patient is in one of a seated and supine position, the position treating means including support means for detachable attachment to the microscope, and an optical system for modifying a beam path of the slit lamp device including a beam deflection element, the optical system and beam deflection element being coupled to the supporting means so as to enable the beam path of the slit lamp device facing the patient to be elongated in a horizontal direction and deflected downwardly to the eye of the patient when the patient is in a supine position.
Claim 3
Dependent Claim
25 words
An apparatus according to claim 1, wherein the optical system for modifying the beam path includes a negative lens group and a positive lens group.
Claim 4
Dependent Claim
31 words
An apparatus according to claim 2, wherein the positive group is mounted so as to enable movement thereof for focusing at least one of the illumination beam and the laser beam.
Claim 5
Dependent Claim
19 words
An apparatus according to claim 2, wherein the negative lens group enable neutralization of an object of the microscope.
Claim 6
Dependent Claim
45 words
An apparatus according to claim 1, wherein the optical system for modifying the beam path includes a lens group which is a lens group initially forming a lens group of a microscope objective facing and which is detached from and coupled to the supporting means.
Claim 7
Dependent Claim
14 words
An apparatus according to claim 1, wherein the supporting means comprises a telescopic member.
Claim 8
Dependent Claim
27 words
An apparatus according to claim 1, further comprising an additional lens group coupled to the slit lamp device for modifying a beam path of an illumination light.
Claim 9
Dependent Claim
21 words
An apparatus according to claim 1, further comprising a separate deflection device for a light beam from the slit lamp device.
Claim 10
Dependent Claim
23 words
An apparatus according to claim 1, further comprising a separate lens group is provided for a light beam from the slit lamp device.
Claim 11
Dependent Claim
21 words
A apparatus according to claim 1, wherein the microscope enables guiding of a light beam through an arm of the microscope.
Claim 12
Dependent Claim
19 words
An apparatus according to claim 1, wherein the slit lamp device enables the guiding of the laser beam therethrough.
Claim 13
Dependent Claim
27 words
An apparatus according to claim 1, further comprising mirror means and a deflection element separate from the slit lamp device and microscope for guiding the laser beam.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-09-11 | 1993-03-13 | 1993-09-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-11 | 1997-03-13 | 1997-09-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-11 | 2001-03-13 | 2001-09-12 | $7700.00 | Window Closed / Lapsed |