US Patent No: 6,986,880
Number of patents in Portfolio can not be more than 2000
Polymeric-matrix brachytherapy sources
Stats
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Jan 17, 2006
Issued date -
Jul 7, 2003
filing date -
10/614,696
serial no -
In Force
status
Importance
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Abstract
Therapeutic sources for use in the practice of brachytherapy comprise a radioactive composite that includes (a) a polymeric matrix and (b) a radioactive powder, e.g. Pd-103 or I-125, consisting essentially of very fine radioactive particles that are randomly and essentially uniformly dispersed within the polymeric matrix. The composite may be in the shape of one or more solid cylindrical rods surrounded by a non-radioactive sleeve. Alternatively it may be a hollow rod, suture, film, sheet, or microspheroidal particles. The composite may be shaped by molding, extrusion or other methods, may be made with a flexibility suitable to its intended use or may be encapsulated in a metallic capsule.
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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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| 4,891,165 Device and method for encapsulating radioactive materials | 101 | 1988 | |
| 4,994,013 Pellet for a radioactive seed | 71 | 1988 | |
| 4,946,435 Flexible sealed radioactive film for radiotherapy, and method of making same | 51 | 1988 | |
| 5,163,896 Pellet for a radioactive seed | 91 | 1991 | |
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| 4,789,501 Glass microspheres | 156 | 1984 | |
| 4,889,707 Composition and method for radiation synovectomy of arthritic joints | 39 | 1988 | |
| 5,011,677 Radioactive glass microspheres | 65 | 1988 | |
| 5,011,797 Composition and method for radiation synovectomy of arthritic joints | 13 | 1989 | |
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| 4,697,575 Delivery system for interstitial radiation therapy including substantially non-deflecting elongated member | 116 | 1984 | |
| 4,754,745 Conformable sheet material for use in brachytherapy | 91 | 1986 | |
| 4,815,449 Delivery system for interstitial radiation therapy including substantially non-deflecting elongated member | 178 | 1987 | |
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| 4,702,228 X-ray-emitting interstitial implants | 133 | 1985 | |
| 4,784,116 Capsule for interstitial implants | 103 | 1987 | |
| 5,405,309 X-ray emitting interstitial implants | 125 | 1993 | |
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| 5,395,300 High dosage radioactive source | 54 | 1991 | |
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| 5,516,881 Aminoxyl-containing radical spin labeling in polymers and copolymers | 121 | 1994 | |
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| 4,849,208 Detectable molecules, method of preparation and use | 17 | 1987 | |
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| 4,763,642 Intracavitational brachytherapy | 122 | 1986 | |
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| 5,141,487 Attachment of radioactive source and guidewire in a branchy therapy source wire | 79 | 1989 | |
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| 5,354,257 Minimally invasive medical device for providing a radiation treatment | 203 | 1991 | |
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| 4,323,055 Radioactive iodine seed | 100 | 1980 | |
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| 5,030,195 Radioactive seed patch for prophylactic therapy | 31 | 1989 | |
| 5,199,939 Radioactive catheter | 257 | 1990 | |
| 5,342,283 Endocurietherapy | 197 | 1990 | |
Patent Citation Ranking
Maintenance Fees
| Fee | Large entity fee | small entity fee | micro entity fee | due date |
|---|---|---|---|---|
| 7.5 Year Payment | $3600.00 | $1800.00 | $900.00 | Jul 17, 2013 |
| 11.5 Year Payment | $7400.00 | $3700.00 | $1850.00 | Jul 17, 2017 |
| Fee | Large entity fee | small entity fee | micro entity fee |
|---|---|---|---|
| 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 |