| Predicate |
Object |
| assignee |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentassignee/MD5_450a7150b235e09bc86fb418373b7121 |
| classificationCPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentcpc/A61F9-00736 |
| classificationIPCInventive |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentipc/A61F9-007 |
| filingDate |
1987-05-01-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| grantDate |
1990-01-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| inventor |
http://rdf.ncbi.nlm.nih.gov/pubchem/patentinventor/MD5_89a7f9c9171371acb63fd4f2a72d6445 |
| publicationDate |
1990-01-02-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| publicationNumber |
US-4891044-A |
| titleOfInvention |
Ophthalmic aspirating/irrigating device |
| abstract |
An ophthalmic aspirating/irrigating device incorporates a needle comprising two tubes disposed in close proximity and terminating close to one another at the distal end of the device. The distal end of the needle is insertable into an eye to be treated while the proximal end of one tube is connected to a syringe by way of a valve device. The valve device contains two one way valves, one of which provides passage only from the syringe to a discharge opening and the second of which provides passage only in the direction from the tube to the syringe. The valves are of the type comprising two flexible lips normally in contact with one another and separable by a pressure rise across the valve to present an orifice. The valves are disposed such that when the device is in a vertical position with the needle projecting downwardly, the orifice of the one valve is located at a distance of at most 1 mm below the level of the orifice of the other valve. |
| isCitedBy |
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6394975-B1
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http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11638660-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9629540-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6884230-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11723802-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11241335-B2
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http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5643200-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2014358039-A1
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http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-2013199722-A1
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http://rdf.ncbi.nlm.nih.gov/pubchem/patent/WO-2017131930-A3
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0633790-A1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/EP-0633790-A4
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6331172-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-7025755-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-5743883-A
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-11607338-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-10391229-B2
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-6217556-B1
http://rdf.ncbi.nlm.nih.gov/pubchem/patent/US-9283320-B2 |
| priorityDate |
1986-05-03-04:00^^<http://www.w3.org/2001/XMLSchema#date> |
| type |
http://data.epo.org/linked-data/def/patent/Publication |