Dual-tip Catheter System for Boring through Blocked Vascular Passages
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United States of America Patent
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N/A
Issued Date -
May 20, 2010
app pub date -
Nov 17, 2008
filing date -
Nov 17, 2008
priority date (Note) -
Abandoned
status (Latency Note)
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Importance

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Abstract
A dual-tip catheter equipped with both a rotating cutting bit and a cavity for a probing guidewire tip for passage through chronic total occlusions or other refractory atherosclerotic plaque from diseased arteries. The catheter's guidewire tip and rotating cutting bit reside safely within an outer protective catheter sheath head when not in use, and alternately either the cutting bit or the guidewire tip will protrude out of the same distal opening of the sheath head as needed. By first drilling through refractory occlusions, and then inserting a guidewire tip into the occlusion opening formed by the cutting bit, the catheter can force the guidewire tip past the occlusion. After the guidewire tip has been fully inserted, the dual-tip catheter can be withdrawn, and an alternate catheter inserted and directed up the guidewire to the occlusion site, where the alternate catheter can perform further occlusion enlargement or therapeutic activity.

First Claim
Family

- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
Patent Owner | Address | |
---|---|---|
AVINGER INC | 400 CHESAPEAKE DRIVE REDWOOD CITY CA 94063 |
International Classification(s)

- [Classification Symbol]
- [Patents Count]
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
McNall, Charles | Belmont, US | 1 | 166 |
Olson, William John | Menlo Park, US | 8 | 688 |
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Maintenance Fees
Fee | Large entity fee | small entity fee | micro entity fee | due date |
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Fee | Large entity fee | small entity fee | micro entity fee |
---|---|---|---|
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 |
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