US Patent No: 8,113,916
Number of patents in Portfolio can not be more than 2000
Straightening and centerless grinding of wire for use with medical devices
Stats
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Feb 14, 2012
Issued date -
Jan 17, 2003
filing date -
10/346,698
serial no -
In Force
status
Importance
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Abstract
The invention includes methods of manufacturing shafts to be used in medical devices. In particular, methods are disclosed to improve straightness and profile of wire used to form guidewires. The wire is preferably twist-straightened with a desired twist orientation, followed by grinding a desired profile on an apparatus having a spin configuration that is aligned in the same direction as the twist orientation.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,538,622 Guide wire for catheters | 301 | 1983 | |
| 4,721,117 Torsionally stabilized guide wire with outer jacket | 205 | 1986 | |
| 5,007,434 Catheter tip attitude controlling guide wire | 70 | 1989 | |
| 5,931,819 Guidewire with a variable stiffness distal portion | 47 | 1996 | |
| 5,782,740 Radiation dose delivery catheter with reinforcing mandrel | 109 | 1996 | |
| 6,106,485 Guidewire with shaped intermediate portion | 46 | 1997 | |
| 6,132,389 Proximally tapered guidewire tip coil | 22 | 1998 | |
| 6,390,993 Guidewire having linear change in stiffness | 64 | 1998 | |
| 6,464,650 Guidewire with smoothly tapered segment | 21 | 1998 | |
| 6,287,292 Guidewire with a variable stiffness distal portion | 12 | 1999 | |
| 6,296,616 Guidewire with shaped intermediate portion | 50 | 2000 | |
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| 4,811,743 Catheter guidewire | 146 | 1987 | |
| 4,846,186 Flexible guidewire | 183 | 1988 | |
| 5,259,393 Guidewire having controlled radiopacity tip | 74 | 1992 | |
| 5,267,574 Guidewire with spring and a heat shrinkable connection | 43 | 1992 | |
| 5,402,799 Guidewire having flexible floppy tip | 72 | 1993 | |
| 5,488,959 Medical guidewire and welding process | 46 | 1993 | |
| 5,497,785 Catheter advancing guidewire and method for making same | 49 | 1994 | |
| 6,039,699 Stiff catheter guidewire with flexible distal portion | 48 | 1996 | |
| 5,807,279 Guidewire having radiopaque distal tip | 24 | 1996 | |
| 6,409,683 Medical guidewire with improved coil attachment | 16 | 1999 | |
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| 4,719,924 Small diameter steerable guidewire with adjustable tip | 172 | 1986 | |
| 4,763,647 Dual coil steerable guidewire | 129 | 1987 | |
| 5,147,317 Low friction varied radiopacity guidewire | 125 | 1990 | |
| 5,339,833 Swivel exchange guidewire | 17 | 1991 | |
| 5,365,943 Anatomically matched steerable PTCA guidewire | 90 | 1993 | |
| 5,720,300 High performance wires for use in medical devices and alloys therefor | 111 | 1995 | |
| 6,355,016 Catheter core wire | 37 | 1999 | |
| 6,375,629 Core wire with shapeable tip | 37 | 2000 | |
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| 5,409,015 Deformable tip super elastic guidewire | 109 | 1993 | |
| 5,636,642 Deformable tip super elastic guidewire | 43 | 1995 | |
| 6,139,510 Super elastic alloy guidewire | 134 | 1995 | |
| 6,488,637 Composite endovascular guidewire | 60 | 1996 | |
| 5,772,609 Guidewire with variable flexibility due to polymeric coatings | 152 | 1996 | |
| 5,827,201 Micro-braided guidewire | 71 | 1996 | |
| 5,769,796 Super-elastic composite guidewire | 105 | 1997 | |
| 5,984,878 Multi-coating stainless steel guidewire | 45 | 1997 | |
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| 5,178,158 Convertible guidewire-catheter with soft tip | 147 | 1990 | |
| 5,299,580 Guidewire with safety ribbon with substantially axially symmetric flexibility | 25 | 1992 | |
| 5,497,783 Guidewire having radioscopic tip | 58 | 1994 | |
| 6,059,738 Guidewire having a coated tip | 23 | 1995 | |
| 5,836,893 Intravascular guidewire | 36 | 1996 | |
| 6,033,720 Guidewire having a coated tip | 9 | 1999 | |
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| 6,383,146 Guidewire | 69 | 2000 | |
| 6,502,606 Guidewire | 28 | 2002 | |
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| 4,991,602 Flexible guide wire with safety tip | 149 | 1989 | |
| 5,664,580 Guidewire having bimetallic coil | 64 | 1995 | |
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| 6,080,045 Machining methods and apparatus | 1 | 1998 | |
| 6,220,939 Method and apparatus for grinding round parts | 2 | 1999 | |
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| 4,779,628 Guidewire assembly having moveable core and low profile safety wire | 43 | 1987 | |
| 5,984,877 Guide wire marker technique and coil spring marker technique | 46 | 1991 | |
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| 6,227,938 Guidewire position locator | 8 | 1999 | |
| 6,312,314 Guidewire position locator | 5 | 2001 | |
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| 5,507,729 One-piece guide part and process for the production thereof | 33 | 1994 | |
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| 5,546,948 Ultrasound imaging guidewire | 47 | 1994 | |
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| 5,368,049 Superelastic formable guidewire with malleable cladding | 112 | 1993 | |
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| 6,348,041 Guidewire | 83 | 2000 | |
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| 5,313,967 Helical guidewire | 70 | 1992 | |
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| 5,673,707 Enhanced performance guidewire | 55 | 1994 | |
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| 6,428,489 Guidewire system | 71 | 1999 | |
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| 6,142,958 Sensor and guide wire assembly | 30 | 1999 | |
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| 4,895,168 Guidewire with movable core and external tubular safety cover | 51 | 1988 | |
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| 6,168,571 Linear elastic member | 42 | 1999 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 3.5 Year Payment | $1600.00 | $800.00 | $400.00 | Aug 14, 2015 |
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Aug 14, 2019 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Aug 14, 2023 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| Surcharge - 3.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| Surcharge - 7.5 year - Late payment within 6 months | $160.00 | $80.00 | $40.00 |
| 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 |