| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_ad1e16ad0be66402e71f289b1d678610 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2009-00846
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F9-00814
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2009-00897
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61B2017-00694
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2009-00872
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F2009-00882 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F9-00804
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F9-00814
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F9-008 |
| classificationIPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61B17-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F9-008 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F9-007
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F9-01
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F9-013
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F- |
| filingDate |
1996-09-17-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_9101faaf3a9c8f70e02a072246afa3de
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_438965b1697776c0744a6cc9c5651eab
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_bc49125e69f496b6e7e46634bf9d7d1b |
| publicationDate |
1997-04-28-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
CA-2185779-A1 |
| titleOfInvention |
Apparatus for removing corneal tissue with infrared laser radiation |
| abstract |
A surgical technique for removing corneal tissue with scanned infrared radiation is disclosed which utilizes short mid-infrared laser pulses to provide a tissue removal mechanism based on photospallation. Photospallation is a photomechanical ablation mechanism which results from the absorption of incident radiation by the corneal tissue. Since photospallation is a mechanical ablation process, very little heat is generated in the unablated adjacent tissue. The disclosed surgical system includes a scanning beam delivery system which allows uniform irradiation of the treatment region and utilizes low energy outputs to achieve controlled tissue removal. A real-time servo-controlled dynamic eye tracker, based on a multiple-detector arrangement, is also disclosed which senses the motion of the eye and provides signals that are proportional to the errors in the lateral alignment of the eye relative to the axis of the laser beam. Temporal and frequency discrimination are preferably utilized to distinguish the tracking illumination from the ambient illumination and the surgical laser beam. |
| priorityDate |
1995-10-27-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |