US Patent No: 6,554,843
Number of patents in Portfolio can not be more than 2000
Cataract instrument
Stats
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Apr 29, 2003
Issued date -
Oct 15, 2001
filing date -
09/977,471
serial no -
In Force
status
Importance
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Abstract
A cataract instrument has a tubular body. The tubular body has an aperture defined at a tapering front end thereof and an end cover provided at a rear and thereof. A shaft is received in the tubular body and has a loop formed at a front end of the shaft. Two flexible leaves are oppositely mounted on the tubular body and operatively mounted on the shaft. A resilient member is mounted between a rear end of the shaft and the end cover. When the flexible leaves are pressed, the shaft is moved forward and the loop is extended out from the aperture to attach with a cataract opaque tissue in a patient's eye. Then, the flexible leaves are released, the shaft is pulled backward by the resilient member and the loop is retracted in the tubular body to remove the cataract opaque tissue.
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First Claim
Related Publications
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International Classification(s)
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- [Patents Count]
Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 5,098,439 Small incision intraocular lens insertion apparatus | 65 | 1989 | |
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| 5,171,314 Surgical snare | 53 | 1990 | |
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| 6,245,078 Snare for endoscope | 5 | 2000 | |
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| 6,156,042 Retinal tissue implantation instrument | 8 | 1999 | |
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| 5,741,270 Manual actuator for a catheter system for treating a vascular occlusion | 44 | 1997 | |
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| 5,066,297 Intraocular lens insertion device | 34 | 1990 | |
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| 4,726,367 Surgical instrument for implanting an intraocular lens | 12 | 1985 | |
| 5,219,350 Medical instrument | 8 | 1990 | |
| 5,902,314 Medical instrument for removing lumen obstructions | 6 | 1998 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Oct 29, 2014 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 11.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge after expiration - Late payment is unavoidable | $700.00 | $350.00 | $175.00 |
| Surcharge after expiration - Late payment is unintentional | $1,640.00 | $820.00 | $410.00 |