Guidewire assembly
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United States of America Patent
Stats
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Nov 3, 1998
Grant Date -
N/A
app pub date -
Oct 27, 1995
filing date -
Oct 27, 1995
priority date (Note) -
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Abstract
The guidewire assembly includes a distal tip section comprising a core wire, a mushroom shaped head fixed to a distal end of the core wire, and a coiled radiopaque wire having a distal end portion fused to the head and a proximal necked down portion which necks down to proximal end coils forming a proximal end of the coiled radiopaque wire. The proximal end coils are received on a portion of the core wire and fixed thereto by a flexible material. The method for making a guidewire assembly having increased flexibility and a secure connection between a coiled wire and a core wire comprises the steps of: forming a coiled radiopaque wire with a larger-in-diameter distal portion, a necked down middle portion, and a smaller-in-diameter proximal portion having a plurality of end coils; winding the end coils on a mandrel so that the end coils can form the proximal end portion of the coiled wire; pushing the end coils onto a tapered portion of a core wire; placing a flexible sleeve over the end coils; heat shrinking the flexible sleeve at one temperature; placing an outer sleeve over the flexible sleeve; and, heat shrinking the outer sleeve at a higher temperature to melt the flexible sleeve causing it to bond onto the tapered portion between the end coils and to the end coils.
First Claim
Family
- 15 United States
- 10 France
- 8 Japan
- 7 China
- 5 Korea
- 2 Other
Patent Owner(s)
- CORDIS CORPORATION
International Classification(s)
Inventor(s)
Inventor Name | Address | # of filed Patents | Total Citations |
---|---|---|---|
Dorcas, Jr William R | Miami, FL | 1 | 53 |
Frechette, Robert | Fort Lauderdale, FL | 11 | 462 |
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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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