| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_e15a05cb9a33de58730274e10e6afff2 |
| classificationCPCAdditional |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B2027-0178
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02C11-10 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02C7-049
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B27-0172
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02C7-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B1-043
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03B21-2013
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02C11-10
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G03B21-2033
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/G02B27-0093 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02B1-04
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02C11-00
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/G02C7-04 |
| filingDate |
2020-11-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_d1ce06571013047023e042ea97940429
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_2d460cae119842fd00b8c20ff9d7a64d
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_c0b959d66f839efaae86d6f390461f9c |
| publicationDate |
2021-05-06-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-2021132412-A1 |
| titleOfInvention |
Oxygen permeable scleral contact lenses using patterned air cavities |
| abstract |
A contact lens has a core thick enough to accommodate a payload. The lens further has outer and inner coverings that cover parts of the core. Each covering is a thin layer of gas-permeable material shaped to form a respective cavity between the covering and the core. Oxygen passes through the outer covering to the outer cavity, through an air path within the core to the inner cavity, and through the inner covering to reach the cornea of the wearer's eye. To increase oxygen flow, a patterned structure is formed at an interface between the core and at least one of the outer and inner covering, comprising supports at which the core and covering contact, and recesses forming the cavity between the core and covering for oxygen flow. The outer and inner coverings may be made from different types of gas-permeable materials having different levels of gas-permeability and brittleness. |
| priorityDate |
2019-10-31-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |