US Patent No: 6,862,470
Number of patents in Portfolio can not be more than 2000
Cavity-filling biopsy site markers
Stats
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Mar 1, 2005
Issued date -
Apr 16, 2002
filing date -
10/124,757
serial no -
In Force
status
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Abstract
The invention provides materials, devices and methods for marking biopsy sites for a limited time. The biopsy-marking materials are ultrasound-detectable bio-resorbable powders, with powder particles typically between about 20 microns and about 800 microns in maximum dimension, more preferably between about 300 microns and about 500 microns. The powders may be formed of polymeric materials containing cavities sized between about 10 microns and about 500 microns, and may also contain binding agents, anesthetic agents, hemostatic agents, and radiopaque markers. Devices for delivering the powders include tubes configured to contain the powders and to fit within a biopsy cannula, the powders being ejected by action of a syringe. Systems may include a tube containing powder, and a syringe containing sterile saline. The tube may be configured to fit within a biopsy cannula such as a Mammotome.RTM. or SenoCor 360.TM. cannula.
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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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| 6,261,302 Applier for implantable surgical marker | 77 | 1998 | |
| 6,220,248 Method for implanting a biopsy marker | 104 | 1998 | |
| 6,356,782 Subcutaneous cavity marking device and method | 123 | 1999 | |
| 6,270,464 Biopsy localization method and device | 60 | 1999 | |
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| 6,071,301 Device and method for facilitating hemostasis of a biopsy tract | 82 | 1998 | |
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| 5,469,847 Radiographic multi-modality skin markers | 125 | 1994 | |
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| 5,282,781 Source wire for localized radiation treatment of tumors | 146 | 1990 | |
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| 6,030,333 Implantable radiotherapy device | 76 | 1997 | |
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| 4,276,885 Ultrasonic image enhancement | 269 | 1979 | |
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| 6,161,034 Methods and chemical preparations for time-limited marking of biopsy sites | 142 | 1999 | |
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| 5,782,775 Apparatus and method for localizing and removing tissue | 83 | 1996 | |
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| 6,183,497 Absorbable sponge with contrasting agent | 70 | 1999 | |
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| 5,395,319 Needle for inserting an object into the body | 53 | 1994 | |
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| 5,494,030 Apparatus and methodology for determining oxygen in biological systems | 69 | 1993 | |
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| 6,656,192 Site marker device | 24 | 2001 | |
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| 4,847,049 Method of forming chelated collagen having bactericidal properties | 100 | 1987 | |
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| 5,676,146 Surgical implant containing a resorbable radiopaque marker and method of locating such within a body | 124 | 1996 | |
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| 4,294,241 Collagen skin dressing | 59 | 1979 | |
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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 | Sep 1, 2016 |
| 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 |